CN108760272A - A kind of water-pump valve simulation experiment system and its simulation experiment method - Google Patents
A kind of water-pump valve simulation experiment system and its simulation experiment method Download PDFInfo
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- CN108760272A CN108760272A CN201810630609.5A CN201810630609A CN108760272A CN 108760272 A CN108760272 A CN 108760272A CN 201810630609 A CN201810630609 A CN 201810630609A CN 108760272 A CN108760272 A CN 108760272A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
A kind of water-pump valve simulation experiment system and its simulation experiment method, the simulation experiment system are to be provided with first motor on a horizontal analogue test platform and drive flywheel, flywheel to move positive displacement pump by gear band by belt；It is provided with the second motor driven gear pump, joining water box in multi-way valve serial pipe circuit, tested valve is and non-return valve and the electromechanical fluid control valve serial communication that links；Overall structure one conveys the safety in the operating mode Imitating experiment pump valve of high lift, big flow for mine pipeline liquid；The simulation experiment method flows through tested valve stage and liquid and reversely flows through the tested valve stage including startup energy storage stage, liquid forward direction, to realize that mine pipeline liquid conveys simulation test；Experimental system for simulating of the present invention and analogue experiment method are simple, it is ensured that the safe operation of drainage system.
Description
Technical field
The present invention relates to a kind of pipeline liquids to transport water-pump valve simulation experiment method, especially simulates water-pump valve in high lift
With the test method under big flow operating mode.
Background technology
A kind of " test installation of pump system " utility model patent of Publication No. CN204532792U is realized and is tried in water pump
The acquisition, transmission and processing of parameter, greatly improve the degree of automation, test accuracy and the experiment of pump test during testing
Efficiency, the pilot system can complete the acquisition, transmission and processing of parameter, and there are one more complete control system schemes.But
It is that the experimental bench system influences pipe characteristic in test water-pump valve, the relationship between the closing and water hammer of valve has not
Foot place.
" automatic water discharge valve test table for locomotive " utility model patent of Publication No. CN 2874453Y, realizing will be tested
The automatic drain valve of survey is connected on the detection valve seat of cylinder, and control air hose is connected by control electrically-controlled valve, automatic to test out
Whether drain valve can work normally, and this testing stand can quickly, safely and accurately detect the maintenance matter of automatic drain valve
Amount, the quality that can check water-pump valve of the pilot system, but for being operated in the water-pump valve quality of big flow, high lift
Monitoring has shortcoming.
" motorcar electric water valve testing stand " patent of invention of 102706519 A of Publication No. CN realizes water-pump valve experiment
Process efficiently solves vacancy of the motorcar electric water valve in terms of experiment, controls experimentation cost, improve test efficiency and
Test mass, the pilot system can test the parameter of water-pump valve in normal conditions, but when water-pump valve encounters pipeline loop
This operating mode is powered off suddenly, and how water-pump valve simulates the not detailed of introduction in testing stand.
In previous patent and paper studies, what is generally studied is the test of ordinary water pump valve performance index, for work
Make have shortcoming in the water-pump valve testing performance index of big flow and high lift, in addition, in most of open source literature, seldom
It is related to water-pump valve simulated experiment flow and control method.
Invention content
It is existing to solve the object of the present invention is to provide a kind of water-pump valve simulation experiment system and its simulation experiment method
Laboratory's factory building height is insufficient, and the technical barrier of model test can not be carried out to the performance of the high lift of hydraulic ram.
To achieve the goals above, the present invention adopts the following technical scheme that.
A kind of water-pump valve simulation experiment system includes first motor, the second motor, gear pump, positive displacement pump, flywheel, water
Case, frequency converter, multi-way valve, non-return valve and electromechanical linkage fluid control valve；It is characterized in that：
On one horizontal analogue test platform, it is provided with the first motor and drives the flywheel, the flywheel to pass through by belt
Gear drives the positive displacement pump；The positive displacement pump is connected with the multi-way valve；It is provided with second motor and drives the gear
Pump, and it is communicated with the water tank；Tested valve is and the non-return valve and the electromechanical linkage fluid control valve serial communication setting；It is whole
Body constitute one for mine pipeline liquid convey lift be 1000m flows in 400m3Under the operating mode of/h, simulation test pump valve peace
The experimental system for simulating of full property.
In the technical solution of above-mentioned water-pump valve simulation experiment system, the model of the first motor is 225M-4/45；Institute
The model for stating the second motor is 180L-4/22；The model of the gear pump is CB-100.
A kind of simulation experiment method for above-mentioned water-pump valve simulation experiment system, it is characterised in that：Simulation test side
Method flows through tested valve stage, liquid and reversely flows through the tested valve stage including startup energy storage stage, liquid forward direction；When the control of multi-way valve
System switch is opened in the position of the switch I, III, and when the position of the switch II, IV is closed, first motor drives flywheel energy storage by belt, is
Start the energy storage stage；It is liquid when the control switch of multi-way valve is in the position of the switch I, IV opening, the position of the switch II, III closing
Forward direction flows through the tested valve stage；When the control switch of multi-way valve is in the position of the switch II, III opening, the position of the switch I, IV closing,
It is that liquid reversely flows through the tested valve stage；Physical simulation test method is as follows：
First motor drives flywheel rotation output energy, and flywheel gets up the energy storage that first motor exports, according to testing
Journey demand releases energy, and when energy storage to certain value carries out simulated experiment, flywheel is stored energy within the 6s times by it
Release, positive displacement pump is in the case where the stored energy of flywheel drives, input power, realizes that first motor drives flywheel energy storage, flywheel will
Amount be transmitted to positive displacement pump, simulate bigcatkin willow journey be 1000m, flow 400m3The simulation operating mode of/h.
In the technical solution of the simulation experiment method of above-mentioned water-pump valve simulation experiment system, it is characterised in that：Described
The pump rotation of two motor driven gears, ftercompction, moisturizing are provided for a whole set of experimental system for simulating, realize system reveal it is former can be just
Often operation.
In the technical solution of the simulation experiment method of above-mentioned water-pump valve simulation experiment system, it is characterised in that：It is described inverse
Only valve is located at the top of regulation gate valve, and in the case that generation pumping accident has little time to close regulation gate valve, non-return valve is quick
It closes, prevents water reflux from causing water hammer；In non-return valve closing process, as aperture reduces, the inlet outlet pressure differential of non-return valve
Exponentially form increases；Aperture reduces then flow resistance coefficient and increases, i.e., when aperture is more than 35mm, flow resistance coefficient may be substantially close to
11；When aperture is the sections 10mm-35mm, flow resistance coefficient slowly rises；When aperture is less than 10mm, flow resistance coefficient ascensional range
It is very big；Meanwhile aperture reduces then discharge coefficient and reduces, when aperture is more than 20mm, discharge coefficient slowly reduces；When aperture is less than
When 20mm, it is larger that discharge coefficient reduces amplitude；By analyzing non-return valve flow resistance characteristics, non-return valve is in addition to disclosure satisfy that just
Normal working condition, and work encounter shut off power in emergency can quick closedown, prevent water reflux cause water hammer.
In the technical solution of the simulation experiment method of above-mentioned water-pump valve simulation experiment system, it is characterised in that：The machine
Electric shaft fluid control valve is installed in the pipeline of pump discharge, has the function of controlling pump head and flow；And close water
When pump, to avoid that pump-stopping water hammer phenomenon, first slowly closing gate valve occurs, slowly reduce flow velocity, it could termination of pumping；Concrete operations
When, drive motor to rotate by the turning handle of hand gearshift case input terminal, motor again drive hydraulic system principle complete gate valve keying.
For compared with the prior art, a kind of above-mentioned the provided water-pump valve simulation experiment system of the present invention and its simulation test
Method, has the following advantages and good effect.
It is to simulate water-pump valve in high lift, the work of big flow first.Gear pump is the main pump of the control system, positive displacement pump
For the auxiliary pump of the control system, system provides water and supplements hydraulic pressure the second motor driven gear pump in order to control, makes in system
Flowing water can keep certain hydraulic pressure, and first motor drives flywheel energy storage by belt, until energy storage reaches certain value,
Energy is discharged, energy release process needs 6s, the mechanical energy of flywheel to be converted into the kinetic energy of water by positive displacement pump, forms lift and is
1000m, flow 400m3The operating mode of/h.Its advantage one is that whole system energy trans-utilization rate is high, close to 80%；Second is that experiment
Platform can simulate the operating mode of high lift and big flow；Third, under the premise of guarantee test smoothly completes, securely and reliably.
Followed by electromechanical linkage fluid control valve closing property.Gate valve is installed in the pipeline of pump discharge, has control
The function of pump head and flow, and when switching off the pump, to avoid occurring pump-stopping water hammer phenomenon, have to first slowly closing lock
Valve, slowly reduces flow velocity, could termination of pumping, in closing process, advantage one is large carrying capacity；Second is that stable movement, and can obtain
Obtain transmission ratio greatly；Third, having the higher ability for resisting vibratory impulse, hand flexible modulation valve opening and the speed for closing valve, have
Conducive to preventing the generation of closing gate valve water hammer.
Third is non-return valve closing property.Non-return valve is also known as check-valves, is located at the top of regulation gate valve, its effect performance
For：It when generation pumping accident, such as shuts off power in emergency, and has little time in the case of closing regulation gate valve, non-return valve can be closed quickly
It closes, prevents water reflux from water hammer, advantage one being caused to be that exponentially form increases flow resistance coefficient；Second is that discharge coefficient reduces；
Third, can quick closedown, prevent water reflux cause water hammer.
4th is water-pump valve simulation test flow and control method.Experiment process includes three phases：The startup energy storage stage,
Liquid forward direction flows through tested valve stage, liquid and reversely flows through the tested valve stage, and control method mainly changes water by multi-way valve
Flow direction, first motor, the second motor provide energy for system, and gear pump, positive displacement pump convert mechanical energy to the dynamic of water
Can, first motor, the second motor, gear pump, positive displacement pump, flywheel, frequency converter, multi-way valve, non-return valve and gate valve cooperative workgroup
At the control method of water-pump valve simulation system, advantage one be simulate high lift, big flow Mine Drainage System；Second is that mould
Centrifugal pump normal work is drawn up to be stopped both actual conditions with centrifugal pump when power-off suddenly；Third, simulate check-valves and
Working performance of the gate valve under liquid lift and inertia double action；Fourth, liquid is positive and reverse flow both operating modes can be fast
Speed switching, and time interval is shorter；Fifth, having the function of automatic water supplement, ensure the supply of water in drainage system；Sixth, overload is protected
Shield, it is ensured that drainage system safe operation.
Description of the drawings
Fig. 1 is water-pump valve simulator stand structure chart of the present invention.
Fig. 2 is the multi-way valve forward direction normal axomometric drawing of the present invention.
Fig. 3 is water-pump valve simulation test flow of the present invention and control method fundamental diagram.
Fig. 4 is that flywheel of the present invention constitutes energy-storage system structure chart with positive displacement pump.
Fig. 5 is that fluid present invention starts energy storage phase principle figure.
Fig. 6 is that fluid present invention forward direction flows through tested valve phase principle figure.
Fig. 7 is that fluid present invention reversely flows through tested valve phase principle figure.
Fig. 8 is water-pump valve simulation test flow of the present invention and control method work flow diagram.
In figure：1：Overflow valve；2：Flywheel；3：First motor；4：Gear pump；5：Positive displacement pump；6:Water tank；7：First guide is overflow
Flow valve；8：Multi-way valve；9：Tested valve；10：Second precursor overflow valve；11：Second motor；12：Belt；13：Pedestal；14：Check
Valve；15：Electromechanics linkage fluid control valve；16：Gear；17：Multi-way valve I；18：Multi-way valve II；19：Multi-way valve III；20：Multi-way valve
Ⅳ；21：Multichannel threshold switch I；22：Multichannel threshold switch II；23：Multichannel threshold switch III；24：Multichannel threshold switch IV.
Specific implementation mode
The specific implementation mode of the present invention is further illustrated below.
A kind of above-mentioned the provided water-pump valve simulation experiment system of the present invention and its simulation experiment method, specifically water are provided
Pump valve simulation test flow and simulation test control method, water-pump valve simulation experiment system mainly have first motor（3）, second electricity
Machine（11）, gear pump（4）, positive displacement pump（5）, flywheel（2）, water tank（6）, frequency converter, multi-way valve（8）, non-return valve（14）And it is electromechanical
Link fluid control valve（15）Deng composition.
A kind of structure chart of water-pump valve simulator stand as shown in Fig. 1, the simulator stand can simulate water-pump valve
In high lift, the work of big flow, the first motor of the simulator stand（3）, the second motor（11）, water tank（6）, positive displacement pump
（5）And gear pump（4）All it is fixed on testing stand pedestal（13）On；First motor（3）Flywheel is connected by belt（2）, flywheel（2）
Pass through gear（16）Connect positive displacement pump（5）, the second motor（11）Tooth connection wheel pump（4）, multi-way valve is connected in pipeline loop, quilt
Side valve（9）It is non-return valve（14）With electromechanics linkage fluid control valve（15）Series connection.
Gear pump（4）For the main pump of the control system, positive displacement pump（5）For the auxiliary pump of the control system, multi-way valve（8）It can
To change the flow direction of experiment bench control system liquid；Second motor（11）Drive gear pump（4）System provides energy in order to control
Amount, enables water to flow in systems, plays lift loading effect；First motor（3）Flywheel is driven by belt（2）Energy storage, etc.
When to energy storage certain value, flywheel（2）There is provided energy release to positive displacement pump（5）Rotation plays flow loading effect；Flywheel（2）Energy
Amount release process needs 6s, flywheel（2）Mechanical energy pass through positive displacement pump（5）Be converted into the kinetic energy of water, formed lift be 1000m,
Flow is 400m3The operating mode of/h.
As shown in Fig. 2, the multi-way valve in water-pump valve simulation test flow（8）, Control experiment platform liquid flow direction is more
Road threshold switch I（21）, multichannel threshold switch II（22）, multichannel threshold switch III（23）, multichannel threshold switch IV（24）, control multichannel respectively
Valve I（17）, multi-way valve II（18）, multi-way valve III（19）, multi-way valve IV（20）It opens or is closed；In water-pump valve simulation test stream
Cheng Zhong, at I, III position, experiment carries out starting the energy storage stage multichannel threshold switch；Multichannel threshold switch is at I, IV position, experiment
It carries out liquid forward direction and flows through the tested valve stage；At II, III position, experiment carries out liquid and reversely flows through tested valve multichannel threshold switch
Stage.
As shown in Fig. 3, the schematic diagram of water-pump valve simulation test control method, gear pump（4）It is to utilize swept volume
Change and realize to the target of fluid pressurized, passes through gear pump（4）The flowing of big lift fluid can be simulated；Positive displacement pump（5）It is logical
Crossing the variation of working chamber makes liquid flow, and is mainly used for simulating the inertia of water in high powered water pump and drainage system, reaches flow
The purpose of load；Motor provides mechanical energy for positive displacement pump, and frequency converter can drive positive displacement pump to ramp up；Flywheel（2）With storage
The function of energy connect the motor that can simulate relatively high power with motor；Multi-way valve is made of four two-port valves, and manual operation can
Switch control is carried out to different pipelines, achievees the purpose that be switched fast two kinds of operating modes；Overflow valve 1 has overload protection function,
Ensure that drainage system is no more than required operating pressure；Experiment process includes three phases：Start the energy storage stage, liquid forward direction flows through
Tested valve stage, liquid reversely flow through the tested valve stage.
It is simulation liquid activated energy storage stage, first the second motor shown in attached drawing 5 such as attached drawing 4（11）Drive gear pump
（4）Rotation makes entire test loop system be full of water；Secondly, multichannel threshold switch I（21）, multichannel threshold switch III（23）It opens, it is more
Road threshold switch II（22）, multichannel threshold switch IV（24）It is closed；First motor（3）Energy 9588kJ is exported, effective energy is exported
8898kJ drives flywheel（2）Rotate 214s, flywheel（2）Energy storage is 8898kJ.
As shown in Fig. 6, it is that liquid forward direction flows through the tested valve stage.Keep gear pump（4）And positive displacement pump（5）Connected motor
Continue working provides power, first multichannel threshold switch I for the flowing of pilot system water（21）, multichannel threshold switch IV（24）It opens,
Multichannel threshold switch II（22）, multichannel threshold switch III（23）It is closed；Liquid flow crosses multi-way valve I（21）, tested valve（9）, multi-way valve IV
（24）And positive displacement pump, form the circuit of a closure；The test point on pipeline where tested valve is tested in the process,
The stage can simulate the working performance that tested valve is opened under Mine Drainage System centrifugal pump normal operation.
As shown in Fig. 7, it is that liquid forward direction flows through the tested valve stage.Keep gear pump（4）And positive displacement pump（5）Connected motor
Continue working provides power, first multichannel threshold switch II for the flowing of pilot system water（22）, multichannel threshold switch III（23）It beats
It opens, multichannel threshold switch I（21）, multichannel threshold switch IV（24）It is closed；Liquid flow crosses multi-way valve II（22）, tested valve（9）, multi-way valve
Ⅲ（23）And positive displacement pump（5）, form the circuit of a closure；In closing process, gear pump（4）Liquid can be simulated by providing pressure
Pressure when refluence at shaft bottom, tested valve（9）Resistance increases in closing process, positive displacement pump（5）When work can be used for simulating refluence
The inertia of water；The pressure and inertia force when mine water flowing in closing process can be simulated by the collective effect of both pumps, it should
The working performance of closure of check ring when stage can simulate Mine Drainage System power-off termination of pumping.
If attached drawing 8 is the work flow diagram of water-pump valve simulation test flow and control method of the present invention, according to tested valve
（9）Testing requirement, carry out starting energy storage stage, liquid forward direction flowing through tested valve（9）Stage, liquid reversely flow through tested valve
（9）Stage；Non-return valve（14）Positioned at the top of regulation gate valve, its effect is shown as：When generation pumping accident, such as promptly
Have a power failure, and has little time in the case of closing regulation gate valve, non-return valve（14）It can prevent water reflux from causing water hammer existing with quick closedown
As；Gate valve is installed in the pipeline of pump discharge, has the function of controlling pump head and flow；And when switching off the pump, it is
It avoids that pump-stopping water hammer phenomenon occurs, has to first slowly closing gate valve, slowly reduce flow velocity, it could termination of pumping.
The present invention simulates water-pump valve in high lift, the work of big flow, prominent electromechanical linkage fluid control valve（15）And check
Valve（14）Closing property, realize water-pump valve simulation test flow and control method.
Claims (6)
1. a kind of water-pump valve simulation experiment system, include first motor, the second motor, gear pump, positive displacement pump, flywheel, water tank,
Frequency converter, multi-way valve, non-return valve and electromechanical linkage fluid control valve；It is characterized in that：
On one horizontal analogue test platform, it is provided with the first motor（3）The flywheel is driven by belt（2）, described to fly
Wheel（2）The positive displacement pump is driven by gear（5）；The positive displacement pump（5）With the multi-way valve（8）Series connection；It is provided with described
Two motors（11）Drive the gear pump（4）, and it is communicated with the water tank（6）；Tested valve is and the non-return valve（15）And institute
State electromechanical linkage fluid control valve（15）Serial communication is arranged；Overall structure one is conveyed for mine pipeline liquid in lift
1000m flows are under the operating mode of 400m3/h, the experimental system for simulating of simulation test pump valve safety.
2. water-pump valve simulation experiment system as described in claim 1, it is characterised in that：The first motor（3）Model be
225M-4/45；Second motor（11）Model be 180L-4/22；The gear pump（4）Model be CB-100.
3. a kind of simulation experiment method for water-pump valve simulation experiment system as described in claim 1, it is characterised in that：
Simulation experiment method flows through tested valve stage, liquid and reversely flows through the tested valve stage including startup energy storage stage, liquid forward direction；When
Multi-way valve（8）Control switch the position of the switch I, III open, the position of the switch II, IV close when, first motor（3）Pass through skin
Band drives flywheel（2）Energy storage is to start the energy storage stage；Work as multi-way valve（8）Control switch the position of the switch I, IV open, II,
It is that liquid forward direction flows through the tested valve stage when position of the switch III is closed；Work as multi-way valve（8）Control switch II, III switch
Position is opened, and is that liquid reversely flows through the tested valve stage when position of the switch I, IV is closed；Physical simulation test method is as follows：
First motor（3）Drive flywheel（2）Rotation output energy, flywheel（2）By first motor（3）The energy storage of output rises
Come, released energy according to experiment process requirements, when energy storage to certain value carries out simulated experiment, by flywheel（2）Store energy
Amount is discharged within the 6s times, positive displacement pump（5）In flywheel（2）Stored energy drive under, input power, realize first motor
（3）Drive flywheel（2）Energy storage, flywheel（2）Transfer energy to positive displacement pump（5）, simulate that bigcatkin willow journey is 1000m, flow is
400m3The simulation operating mode of/h.
4. the simulation experiment method of water-pump valve simulation experiment system as claimed in claim 3, it is characterised in that：Second electricity
Machine（11）Drive gear pump（4）Rotation provides ftercompction, moisturizing for a whole set of experimental system for simulating, realize system reveal it is former can
With normal operation.
5. the simulation experiment method of water-pump valve simulation experiment system as claimed in claim 3, it is characterised in that：The non-return valve
（14）Positioned at the top of regulation gate valve, in the case that generation pumping accident has little time to close regulation gate valve, non-return valve（14）
Quick closedown prevents water reflux from causing water hammer；Non-return valve（14）In closing process, as aperture reduces, non-return valve（14）
Inlet outlet pressure differential exponentially form increase；Aperture reduces then flow resistance coefficient and increases, i.e., when aperture is more than 35mm, flow resistance coefficient
It may be substantially close to 11；When aperture is the sections 10mm-35mm, flow resistance coefficient slowly rises；When aperture is less than 10mm, flow resistance
Coefficient ascensional range is very big；Meanwhile aperture reduces then discharge coefficient and reduces, when aperture is more than 20mm, discharge coefficient slowly subtracts
It is small；When aperture is less than 20mm, it is larger that discharge coefficient reduces amplitude；By analyzing non-return valve flow resistance characteristics, non-return valve
In addition to disclosure satisfy that normal operation, and work encounter shut off power in emergency can quick closedown, prevent water reflux from causing water
Hammer phenomenon.
6. the simulation experiment method of water-pump valve simulation experiment system as claimed in claim 3, it is characterised in that：The electromechanical connection
Dynamic fluid control valve（15）It is installed in the pipeline of pump discharge, has the function of controlling pump head and flow；And close water
When pump, to avoid that pump-stopping water hammer phenomenon, first slowly closing gate valve occurs, slowly reduce flow velocity, it could termination of pumping；Concrete operations
When, drive motor to rotate by the turning handle of hand gearshift case input terminal, motor again drive hydraulic system principle complete gate valve keying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810630609.5A CN108760272A (en) | 2018-06-19 | 2018-06-19 | A kind of water-pump valve simulation experiment system and its simulation experiment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630609.5A CN108760272A (en) | 2018-06-19 | 2018-06-19 | A kind of water-pump valve simulation experiment system and its simulation experiment method |
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| CN108760272A true CN108760272A (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810630609.5A Pending CN108760272A (en) | 2018-06-19 | 2018-06-19 | A kind of water-pump valve simulation experiment system and its simulation experiment method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110411726A (en) * | 2019-07-30 | 2019-11-05 | 西安航天动力研究所 | A kind of ejector filler case weld part performance testing device |
| CN113048045A (en) * | 2021-03-05 | 2021-06-29 | 博朗普特工业设备(苏州)有限公司 | Multi-element coupling test platform for pump valves of different categories |
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| CN113048045B (en) * | 2021-03-05 | 2023-08-11 | 博朗普特工业设备(苏州)有限公司 | Multi-element coupling test platform for different types of pump valves |
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