CN206192627U - Modular hydraulic machinery model test bench hydraulic circulation system - Google Patents
Modular hydraulic machinery model test bench hydraulic circulation system Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 238000005259 measurement Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 25
- 238000002474 experimental method Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 230000006641 stabilisation Effects 0.000 claims description 11
- 238000011105 stabilization Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 238000012795 verification Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000012827 research and development Methods 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a modular hydraulic machinery model test bench hydraulic circulation system to the lower mould block group becomes: rivers module, power module, flow measurement module, voltage stabilizing module. The intermodule carries out the independent assortment according to different model test requirements with the model unit, and modularization hydraulic circulation system height has concentrated various mobile parts, and each parts of modularization have the relative independentability, and each module can alone or make up and debug, use, modularization internal cell has interchangeability, and structure, size and the parameter at intermodule interface position are standardized, realizes that the module is interior, the exchange of intermodule, guarantees the commonality of module, it is adjustable to reach the big displacement of intermodule spatial position in each module, satisfied different experimental needs. Final realize satisfying different kinds, the basic and applied basis nature test requirement of each item of the hydraulic model test unit of isostructure, different functions not, can expand simultaneously and accomplish water mechanical test, have high accuracy, high stability, multi -functional, nimble installation, characteristics such as convenient to use.
Description
Technical field
The invention belongs to hydraulic experimental technique field, more particularly to a kind of modular hydraulic rig for model test
Hydraulic system.
Background technology
Hydraulic, refers to that with liquid be working media and the plant equipment of energy carrier, is most important one in power engineering
Class plant equipment, is widely used in the energy, mine, metallurgy, oil, chemical industry, environment, building, water conservancy, transport, space flight and aviation, sea
The every subjects such as thing, military affairs field and all trades and professions of all departments and national economy, the knot of the hydraulic of different application occasion
Configuration formula and work characteristics have very big difference.
The hydraulic performance test of hydraulic model is a particularly important means of correct verification hydraulic, and it can be carried
For the full characterization data of hydraulic, the main side that hydraulic model test is also current Hydraulic Power Unit performances acceptance is carried out
Method.Therefore hydraulic rig for model test is played a very important role in hydraulic industry development, and it is hydraulic machine
Group performance optimization visual plant.In high precision, the hydraulic rig for model test of high stability is large-scale hydraulic manufacture, research and development
Enterprise or teaching, the infrastructure of R＆D institution's indispensability.
Hydraulic is widely used, therefore hydraulic model unit species, structure, function be varied, the examination of its model
Test requirement also different.Model unit is included but is not limited to：The water turbine set of different structure, for example：Mixed-flow, axial-flow type,
It is tubular etc.；The blade water pump of different structure, for example：Centrifugal, axial-flow type, mixed-flow, tubular etc.；Pump turbine；
Hydraulic transient process test model；Hydraulic structure model, hydraulic model, Flow Meter's Demarcation etc..Model unit
Pilot project, including but not limited to：Energy response, cavitation characteristic, runaway speed characteristic, water pressure fluctuation characteristic, force characteristic,
Flowing internal characteristic, tonifying Qi, four-quadrant etc..Testing stand dozens of is completed both at home and abroad at present, wherein major part newly-built in recent years
Testing stand is generally hydraulic universal model testing stand, also referred to as multi-function model test facility of hydrodynamic machinery.Document
CN1808091A, CN104458316A, document《Hydraulic multi-function test stand》、《Hydraulic allpurpose model is tested
Platform》、《The characteristics of Toshiba's water power Universal Test Stand for Hydraulic Machines》、《Multi-function model test facility of hydrodynamic machinery circulating pipe system
The Hydraulic Design》、《The big energy hydraulic turbine rigs for model test of DF-1》Deng, multiple multi-function model test facility of hydrodynamic machinery are disclosed,
Such rig for model test can complete the part test of limited type hydraulic model.Above-mentioned multiple hydraulic allpurpose models
There is the hydraulic system of testing stand common feature to be：Testing stand part relative position is fixed, tests adjustment capability deficiency；Work(
Can cover that type is limited, expansibility is not strong；Testing stand part non-standard is more, and interchangeability is poor, and maintenance, use cost are high；Investment
Greatly, take up an area wide.
In industries such as electronic equipment, automobile, shipbuilding and household electrical appliances, modularization has obtained applying to some extent for modularized design
And development, achieve more achievement.Modular engineering goods mainly have that interchangeability is strong, expansibility strong, are easy to repair, save
About cost the features such as.
In sum, it would be desirable to a kind of modular hydraulic rig for model test hydraulic system, using module
Change component technology by hydraulic rig for model test hydraulic system be decomposed into smaller manageability, control assembly unit i.e.
Modular unit is designed, installs, runs, and can effectively improve bench run ability.Meet variety classes, different knots
The test requirements document of structure, the hydraulic model unit of difference in functionality, makes it have high accuracy, high stability, multi-functional, flexible installation,
The feature of being easy to use.
The content of the invention
The purpose of the present invention is a kind of modular hydraulic rig for model test hydraulic system of design, meets background
The test requirements document of the hydraulic model test unit of variety classes, different structure, difference in functionality described in technology, makes it have high-precision
Degree, high stability, multi-functional, flexible installation, are easy to use feature.
To meet above-mentioned technical requirements, technical scheme is as follows：
A kind of modular hydraulic rig for model test hydraulic system, the modular hydraulic model examination
Platform hydraulic system is tested, is constituted by with lower module：Flow module, power plant module, flow measurement module, Voltage stabilizing module.
The flow module fluid course complete for hydraulic system is provided, changes Hydraulic Circulation difference liquid stream side
To connection hydraulic model test model unit and other modules.The flow module by valve unit 1-8, threeway unit 9,11,
18th, 20,24,29, Pipe Elbow Element 10,12,15,19,21,25,28,32, straight tube unit 13,14,16,17,22,23,30,31,
Elastic telescopic joint unit 26,27 is constituted, and whole units have same inner diameter size, and junction uses same specification, the flange of size
With telescopic joint, locked by bolt nut structure and be combined connection.Wherein：Described threeway unit 11,18 and power plant module,
Threeway unit 20, Pipe Elbow Element 21 and flow measurement module, elastic telescopic joint unit 26,27 is with current stabilization module using standardization
Interface, junction uses same specification, size flange and telescopic joint, and being locked by bolt nut structure carries out elastic connection, releases
The connection of relative position, increases straight tube unit, and power plant module, flow measurement module, current stabilization module can be according to actual tests needs
Carry out space big apart from adjustment of displacement；The described length of straight tube unit 13,14,16,17,22,23,30,31 is according to actual installation
Needs are designed；Using standardization, same in valve unit, threeway unit, Pipe Elbow Element, elastic telescopic joint unit homogeneous unit
Specification product, with interchangeability.Described valve 1-8, switch can be combined according to experiment needs, change Hydraulic Circulation different
Liquid flow path direction, switching disparate modules participate in process of the test, so as to reach test requirements document；
The power plant module provides Hydraulic Circulation power, it is ensured that flow, hydrohead test condition needed for the experiment of model unit, by
At least one set of pump valve unit composition, by pump 36, valve 37-39, threeway 47,48 and straight tube 46 are constituted described pump valve unit.Pump
Valve cell is connected with the Inlet water of flow module by threeway 33,34, pump valve unit and flow module delivery port and threeway 44,45
It is connected, threeway 33,34,44,45 is standardization, same specification product, and with interchangeability, junction uses same specification, the method for size
Blue and telescopic joint, the elastic connection pump valve unit after bolt nut structure is locked, and can be by increasing same item 35,49 etc.
Expanding increases pump valve unit, and pump valve unit is arranged in juxtaposition, and provides and connected by standardizing threeway 47 between positive liquid stream, pump valve unit
Connect.Described pump valve unit can plural serial stage or used in parallel.
The flow measurement module completes the flow measurement of hydraulic system, verification, and unit group is surveyed by least one stream
Into.Described stream is surveyed unit and is made up of valve 52, reducing 53, reducing 58, straight tube 54, straight tube 57, electromagnetic flowmeter 55, and it is special
Levy be straight tube 54, straight tube 17, electromagnetic flowmeter 55 have same inner diameter size, using same specification size flange, telescopic joint lead to
Cross bolt nut structure and be combined connection, straight tube 54, the length of straight tube 57 are identical, and length is more than the 10 of the diameter of flowmeter 55
Times, measurable positive and negative two-way liquid flow.Described stream is surveyed unit entery and delivery port and is connected with threeway 50,65, and threeway 50,65 is
Standardization, same specification product, with interchangeability, elastic connection stream is carried out using same specification size flange, telescopic joint and surveys unit, and
Increase stream survey unit can be expanded by increasing same item threeway 51,66, stream is surveyed unit and is arranged in juxtaposition, the Electromagnetic Flow of installation
Meter diameter can be of different sizes, also can be identical.In some embodiments, experiment measures big flow operating mode flow, low flow rate condition respectively
Flow, electromagnetic flowmeter 55 uses minor diameter electromagnetic flowmeter using major diameter electromagnetic flowmeter, electromagnetic flowmeter 62, and measurement is big
During flow rate working conditions, valve 52 is opened, and valve 59 is closed, and during measurement low flow rate condition, valve 52 is closed, and valve 59 is opened, some
In embodiment, experiment need to each other verify two diameter same electromagnetic flow meter accuracies, and electromagnetic flowmeter 55,62 is using identical straight
Footpath, valve 52 is opened, and valve 59 is closed, and electromagnetic flowmeter 55 works, and valve 52 is closed, and valve 59 is opened, electromagnetic flowmeter 62
Work, compares both measured values, if identical.
The Voltage stabilizing module provides Large Copacity, the hydraulic boundary conditions of stabilization, is made up of at least one pressurized tank unit.Pressure
Power tank unit is by flange 67, lower margin 68, drainpipe 69, peep-hole 71, sensor interface 72,70, pressure cap 80, gas interface
81st, tank body 74, tank flange 76, telescopic joint flange 77,79, telescopic joint 78, blind plate 73, flow steadying grid 82 are constituted.Wherein：Flange 67
The elastic telescopic joint of flow module is connected by bolt nut structure；Lower margin 68 is installed on the pre-buried slide rail of test-bed, can
Moved with front and rear big displacement；Drainpipe 69 has standardization flange-interface, for blowdown pressure tank unit internal liquid, be easy to inspection
Repair；Peep-hole 71 has transparent high-pressure glass form, observes pressurized tank unit internal liquid state；Sensor interface 70,72 is adopted
With standard transducer internal thread perforate, the measuring apparatus such as connection liquid level gauge, thermometer, pressure sensor；Pressure cap 80, gas connects
Mouth 81 is that pressurized tank unit pressurizes, and vacuumizes function generating means；Gas interface 81 has standardization female thread structure, external to add
Pressure, vaccum-pumping equipment；Pressure cap 80 is adjusted, compensator or trimmer pressure tank unit internal pressure；Tank body 74 passes through tank body method with telescopic joint 78
Blue 76, telescopic joint flange 77 and bolt nut structure are attached, and unclamp the connection, and telescopic joint 78 will according to model units' installation
Realistic existing big distance is moved forward and backward, and junction has sealing structure；Blind plate 73 is arranged on telescopic joint 78, blind plate 73 and telescopic joint
Flange 79 is attached by bolt nut structure, and junction has sealing structure, unclamps the replaceable blind plate 73 of connection；Blind plate 73
It is parametrization, high intensity circular steel plate, is connected with model unit, can be open according to prototype group interface shape, and pass through
Welding manner is attached, when changing different model units, change blind plate 73 can implementation model unit and Voltage stabilizing module more
Change connection；Flow steadying grid 82 is round high-strength steel sheet, and diameter is identical with the internal diameter of tank body 74, and by being welded to connect in tank body 74
On, according to experiment to flow stability requirement, flow steadying grid 82 carries out the connection position of array perforate, hole size and quantity and tank body
Put, determined by water force.In some embodiments, pressurized tank unit is connected in parallel on model unit side, in some embodiments, pressure
Power tank unit is disposed in series in model unit both sides, and pressurized tank head and the tail are positioned opposite, with flow module, model unit composition waterpower
The circulatory system.
Advantage of the present invention and good effect are：
(1) hydraulic rig for model test hydraulic system is decomposed into by smaller easy pipe using modular assembly technology
Reason, the assembly unit of control are that modular unit is designed, installs, runs, effective to improve bench run ability.Waterpower
The interface of the modularized design of mechanical model testing stand hydraulic system its inter-module is all specified or standardized, standardized
Component interface defines the information such as function, the spatial relationship of intermodule of hydraulic rig for model test hydraulic system.
(2) the various mobile parts of modular hydraulic system high concentration, modularization each part has relatively only
Vertical property, each module can alone or in combination be debugged, used；Modularization internal element has interchangeability, intermodule interface position
Structure, size and standard parameter, realize in module, the exchange of intermodule, it is ensured that the versatility of module；In each module and mould
The need for big displacement adjustable 0-3m in locus between block, the different tests of satisfaction.
(3) meet regulations of the IEC about code, meet hydraulic Performance comparision and acceptance test；Satisfying model machine
Group is included but is not limited to：The water turbine set of different structure, for example：Mixed-flow, axial-flow type, tubular etc.；The blade of different structure
Formula water pump, for example：Centrifugal, axial-flow type, mixed-flow, tubular etc.；Pump turbine；Hydraulic transient process tests mould
Type；Hydraulic structure model, hydraulic model, Flow Meter's Demarcation etc..The pilot project of satisfying model unit, including but
It is not limited to：Energy response, cavitation characteristic, runaway speed characteristic, water pressure fluctuation characteristic, force characteristic, flowing internal characteristic, tonifying Qi,
Four-quadrant etc..It is final realize meeting variety classes, different structure, the hydraulic model test unit of difference in functionality it is every basic
And application foundation test requirements document, while completion hydraulics test can be expanded.
(4) hydraulic system is stable, reproducible, it is ensured that the composition error of hydraulic rig for model test reaches
Arrive：<± 0.3%.
(5) modular hydraulic system promotes hydraulic rig for model test to be created as hydraulic and engineering technology
New platform.Can have deep teaching and distinctive scientific research function, the measure the item of satisfaction also includes：
1) flow visual：Flow in Fluid Machinery PIV measurements, observation of special flow phenomenon etc.；
2) UNSTEADY FLOW phenomenon and dynamic characteristics are measured；
3) research and development of novel hydropower machinery, cavitation and cavitation corrosion, polishing machine test, the testing experiment of abrasion-resistant material turn
The test measurement research of subdynamics；
4) experiment of hydrogenerator set control system, sets up turbine-generator units gamut operating simulation system；
Brief description of the drawings
Fig. 1 modularization hydraulic system figures；
Fig. 2 flow module schematic diagrames；
Fig. 3 power plant module schematic diagrames；
Fig. 4 flow measurement module schematic diagrames；
Fig. 5 Voltage stabilizing module schematic diagrames.
Specific embodiment
1-5 is further described to principle of the invention and specific implementation below in conjunction with the accompanying drawings.
A kind of modular hydraulic rig for model test hydraulic system, the modular hydraulic model examination
Platform hydraulic system is tested, is constituted by with lower module：Flow module, power plant module, flow measurement module, Voltage stabilizing module.
The flow module fluid course complete for hydraulic system is provided, switching Hydraulic Circulation difference liquid flow path direction, even
Connect model unit and other modules.Flow module is by valve unit 1-8, threeway unit 9,11,18,20,24,29, Pipe Elbow Element
10th, 12,15,19,21,25,28,32, straight tube unit 13,14,16,17,22,23,30,31,26,27 groups of elastic telescopic joint unit
Into each unit has same inner diameter size, and company is combined by bolt nut structure using same specification size flange, telescopic joint
Connect.Wherein：Threeway unit 11,18 and power plant module, threeway unit 20, Pipe Elbow Element 21 and flow measurement module, elastic telescopic
Section unit 26, elastic telescopic joint unit 27 use standardization, parametrization interface with current stabilization module, using same specification size method
Blue, telescopic joint carries out elastic connection by bolt nut structure, releases the connection of the relative position of bolt and nut, straight by increasing
Pipe unit, power plant module, flow measurement module, current stabilization module 1, current stabilization module 2 can need to carry out space big according to actual tests
Apart from adjustment of displacement, the described length of straight tube unit 13,14,16,17,22,23,30,31 needs to be set according to actual installation
Meter, in valve unit, threeway unit, Pipe Elbow Element, elastic telescopic joint unit homogeneous unit using standardization, same specification product,
With interchangeability.
When it is positive hydraulic turbine condition to complete model unit, valve unit 1,4 is opened, and valve unit 2,3 is closed, power
Module provides positive liquid flow path direction power to hydraulic system, and hydraulic system has positive liquid flow path direction；When completion prototype
When group is for negative sense hydraulic turbine condition, valve unit 1,4 is closed, and valve unit 2,3 is opened, power plant module is provided just to Hydraulic Circulation
Liquid flow path direction power, hydraulic system has negative liquid flow path direction；When it is pump operating condition to complete model unit, valve unit 1,
2 are closed, and valve unit 3,4 is opened or valve unit 1,2 is opened, valve unit 3,4 is closed, and power plant module is stopped, water
It is identical that power circulatory system liquid flow path direction provides flow dynamic direction with model unit；It is the hydraulic turbine or water pump when model unit is completed
During operating mode, valve unit 6,8 is opened, and valve unit 5,7 is closed, and Voltage stabilizing module 1, Voltage stabilizing module 2 participate in hydraulic system work
Make；When it is flow calibration operating mode to complete model unit, valve unit 6,8 is closed, and valve unit 5,7 is opened, Voltage stabilizing module 1,
Voltage stabilizing module 2 does not participate in hydraulic system work；It is hydraulic structure model or hydraulics physics when model unit is completed
During model test, valve unit 6,7 is opened, valve unit 5,8 is closed, and Voltage stabilizing module 2 participates in hydraulic system work, voltage stabilizing
Module 1 is not participated in waterpower and follows system work, when it is hydraulic transient process physical experiments to complete model unit, valve list
Unit 6,7 is closed, valve unit 5,8 is opened, and Voltage stabilizing module 2 is not involved in hydraulic system work, and Voltage stabilizing module 1 is participated in waterpower and followed
Loop systems work.
Power plant module provides Hydraulic Circulation power, it is ensured that flow, hydrohead test condition needed for the experiment of model unit, by least
One group of pump valve unit composition.Wherein：Pump valve unit is made up of pump 36, valve 37,38,39, threeway 48,47 and straight tube 46.Pump valve
Unit is connected with the Inlet water of flow module by threeway 33,34, pump valve unit and flow module delivery port and threeway 44,45 phases
Even.Threeway 33,34,44,45 is standardization, same specification product, with interchangeability, it is logical using same specification size flange, telescopic joint
Bolt nut structure elastic connection pump valve unit is crossed, and increase pump valve list can be expanded by increasing same item threeway 35,49
Unit, pump valve unit is arranged in juxtaposition, and provides and connected by standardized component threeway 47 between positive liquid stream, pump valve unit.Work as completion
When model unit is Francis turbine model test, hydraulic system needs high water head experimental condition, the series connection of pump valve unit
Use, pump 36,40 runs, valve 37,47,41,43 is closed, valve 38,42 is opened；When completing model unit for tubular or
During person's axial flow hydraulic turbine model test, hydraulic system needs big flow experimental condition, and pump valve unit is used in parallel, pump
36th, 40 operation, valve 37,47,43,41 is opened, and valve 38,42 is closed；When a certain pump valve unit breaks down, gone out with pump 36
As a example by existing disorderly closedown, pump 40 is run, and valve 37,38,42,43 is closed, and valve 39,41 is opened.
Flow measurement module completes the flow measurement of hydraulic system, verification, is made up of at least one stream survey unit.Stream
Survey unit to be made up of valve 52, reducing 53, reducing 58, straight tube 54, straight tube 57, electromagnetic flowmeter 55, straight tube 54, straight tube 17, electricity
Magnetic flowmeter 55 has same inner diameter size, is carried out by bolt nut structure using same specification size flange, elastic telescopic joint
Combination connection, straight tube 54, the length of straight tube 57 are identical, and length is more than 10 times of the diameter of flowmeter 55, measurable positive and negative two-way liquid
Stream flow.Stream survey unit entery and delivery port be connected with threeway 50,65, threeway 50,65 be standardization, same specification product, with exchange
Property, using same specification size flange, telescopic joint carry out elastic connection stream survey unit, and can by increase same item threeway 51,
66 can expand increase stream surveys unit, and stream is surveyed unit and is arranged in juxtaposition, and the electromagnetic flowmeter diameter of installation can be of different sizes, also can phase
Together.When it is the inclined operating mode of Francis turbine big flow and the inclined operating mode of low discharge to complete model unit, big flow need to be respectively measured
Operating mode flow, low flow rate condition flow, electromagnetic flowmeter 55 is using major diameter electromagnetic flowmeter, electromagnetic flowmeter 62 using small straight
Footpath electromagnetic flowmeter, during measurement big flow operating mode, valve 52 is opened, and valve 59 is closed, and during measurement low flow rate condition, valve 52 is closed
Close, valve 59 is opened, when hydraulic system does not possess flow meter calibration function, it is identical that experiment need to each other verify two diameters
Electromagnetic flowmeter accuracy, electromagnetic flowmeter 55,62 uses same diameter, and valve 52 is opened, and valve 59 is closed, electromagnetic flowmeter
55 work, valve 52 is closed, and valve 59 is opened, and electromagnetic flowmeter 62 works, and compares both measured values, if identical.
Voltage stabilizing module provides Large Copacity, the hydraulic boundary conditions of stabilization, is made up of at least one pressurized tank unit.Pressurized tank
Unit is by flange 67, lower margin 68, drainpipe 69, peep-hole 71, sensor interface 72,70, pressure cap 80, gas interface 81, tank
Body 74, tank flange 76, telescopic joint flange 77,79, telescopic joint 78, blind plate 73, flow steadying grid 82 are constituted.Wherein：Flange 67 passes through
Bolt nut structure connects the elastic telescopic joint of flow module；Lower margin 68 is installed on the pre-buried slide rail of test-bed, can be in the past
Big displacement movement afterwards；Drainpipe 69 has standardization flange-interface, for blowdown pressure tank unit internal liquid, easy access；
Peep-hole 71 has transparent high-pressure glass form, observes pressurized tank unit internal liquid state；Sensor interface 70,72 is using mark
The measuring apparatus such as quasi- sensor internal thread perforate, connection liquid level gauge, thermometer, pressure sensor；Pressure cap 80, gas interface 81
For pressurized tank unit pressurizes, function generating means is vacuumized；Gas interface 81 have standardization female thread structure, external pressurization,
Vaccum-pumping equipment；Pressure cap 80 is adjusted, compensator or trimmer pressure tank unit internal pressure；Tank body 74 passes through tank flange with telescopic joint 78
76th, telescopic joint flange 77 and bolt nut structure are attached, and unclamp the connection, and telescopic joint 78 is according to model unit installation requirement
Realize that big distance is moved forward and backward, junction has sealing structure；Blind plate 73 is arranged on telescopic joint 78, blind plate 73 and telescopic joint method
Blue 79 are attached by bolt nut structure, and junction has sealing structure, unclamp the replaceable blind plate 73 of connection；Blind plate 73
It is parametrization, high intensity circular steel plate, is connected with model unit, can be open according to prototype group interface shape, and pass through
Welding manner is attached, when changing different model units, change blind plate 73 can implementation model unit and Voltage stabilizing module more
Change connection；Flow steadying grid 82 is round high-strength steel sheet, and diameter is identical with the internal diameter of tank body 74, and by being welded to connect in tank body 74
On, according to the experiment of model unit to flow stability requirement, flow steadying grid 82 carries out array perforate, hole size and quantity and tank body
Link position, is determined by water force.When completion model unit is tested for multi-machine parallel connection, pressurized tank unit is connected in parallel on model
Unit side, when the experiment of model unit unit is completed, pressurized tank unit is disposed in series in model unit both sides, and pressurized tank is from beginning to end
It is positioned opposite, with the module such as flow module and model unit composition hydraulic system.
In sum, the present invention has the positive effect that：
(1) hydraulic rig for model test hydraulic system is decomposed into by smaller easy pipe using modular assembly technology
Reason, the assembly unit of control are that modular unit is designed, installs, runs, effective to improve bench run ability.Waterpower
The interface of the modularized design of mechanical model testing stand hydraulic system its inter-module is all specified or standardized, standardized
Component interface defines the information such as function, the spatial relationship of intermodule of hydraulic rig for model test hydraulic system.
(2) the various mobile parts of modular hydraulic system high concentration, modularization each part has relatively only
Vertical property, each module can alone or in combination be debugged, used；Modularization internal element has interchangeability, intermodule interface position
Structure, size and standard parameter, realize in module, the exchange of intermodule, it is ensured that the versatility of module；In each module and mould
The need for big displacement adjustable 0-3m in locus between block, the different tests of satisfaction.
(3) meet regulations of the IEC about code, meet hydraulic Performance comparision and acceptance test；Satisfying model machine
Group is included but is not limited to：The water turbine set of different structure, for example：Mixed-flow, axial-flow type, tubular etc.；The blade of different structure
Formula water pump, for example：Centrifugal, axial-flow type, mixed-flow, tubular etc.；Pump turbine；Hydraulic transient process tests mould
Type；Hydraulic structure model, hydraulic model, Flow Meter's Demarcation etc..The pilot project of satisfying model unit, including but
It is not limited to：Energy response, cavitation characteristic, runaway speed characteristic, water pressure fluctuation characteristic, force characteristic, flowing internal characteristic, tonifying Qi,
Four-quadrant etc..It is final realize meeting variety classes, different structure, the hydraulic model test unit of difference in functionality it is every basic
And application foundation test requirements document, while completion hydraulics test can be expanded.
(4) hydraulic system is stable, reproducible, it is ensured that the composition error of hydraulic rig for model test reaches
Arrive：<± 0.3%.
(5) modular hydraulic system promotes hydraulic rig for model test to be created as hydraulic and engineering technology
New platform.Can have deep teaching and distinctive scientific research function, the measure the item of satisfaction also includes：
1) flow visual：Flow in Fluid Machinery PIV measurements, observation of special flow phenomenon etc.；
2) UNSTEADY FLOW phenomenon and dynamic characteristics are measured；
3) research and development of novel hydropower machinery, cavitation and cavitation corrosion, polishing machine test, the testing experiment of abrasion-resistant material turn
The test measurement research of subdynamics；
4) experiment of hydrogenerator set control system, sets up turbine-generator units gamut operating simulation system.
Finally it should be noted that：Above specific embodiment is merely illustrative of the technical solution of the present invention, rather than it is limited
System；Although being described in detail to the present invention with reference to specific embodiment, it will be understood by those within the art that：Its
Foregoing each described specific embodiment technical scheme can still be modified, or which part technical characteristic is entered
Row equivalent；And these modifications or replacement, appropriate technical solution is departed from specific embodiment of the invention technical side
The spirit and scope of case.
Claims (5)
1. a kind of modular hydraulic rig for model test hydraulic system, it is characterised in that：The modular waterpower
Mechanical model testing stand hydraulic system, is constituted by with lower module：Flow module, power plant module, flow measurement module, voltage stabilizing
Module.
2. a kind of modular hydraulic rig for model test hydraulic system according to claim 1, its feature exists
In：The flow module fluid course complete for hydraulic system is provided, switching Hydraulic Circulation difference liquid flow path direction, link model
Unit and other modules, by valve unit 1-8, threeway unit 9,11,18,20,24,29, Pipe Elbow Element 10,12,15,19,21,
25th, 28,32, straight tube unit 13,14,16,17,22,23,30,31, elastic telescopic joint unit 26,27 is constituted, and whole units have
Same inner diameter size, connection is combined using same specification size flange, telescopic joint by bolt nut structure；
Described threeway unit 11,18 and power plant module, threeway unit 20, Pipe Elbow Element 21 and flow measurement module, elasticity are stretched
Casing coupling unit 26, elastic telescopic joint unit 27 use standardization, parametrization interface with current stabilization module, using same specification size method
Blue, telescopic joint carries out elastic connection by bolt nut structure, releases the connection of the relative position of bolt and nut, straight by increasing
Pipe unit, power plant module, flow measurement module, current stabilization module 1, current stabilization module 2 can need to carry out space big according to actual tests
Apart from adjustment of displacement；
The described length of straight tube unit 13,14,16,17,22,23,30,31 needs to be designed according to actual installation；
In described valve unit, threeway unit, Pipe Elbow Element, elastic telescopic joint unit homogeneous unit using standardization, with rule
Lattice product, with interchangeability.
3. a kind of modular hydraulic rig for model test hydraulic system according to claim 1, its feature exists
In：Power plant module can provide Hydraulic Circulation power, it is ensured that flow, hydrohead test condition needed for the experiment of model unit, by least one
Group pump valve unit composition；
Described pump valve unit is made up of pump 36, valve 37,38,39, threeway 48,47 and straight tube 46；Described pump valve unit with
The Inlet water of flow module is connected by threeway 33,34, and pump valve unit is connected with flow module delivery port with threeway 44,45, and three
Lead to 33,34,44,45 for standardization, same specification product, with interchangeability, bolt is passed through using same specification size flange, telescopic joint
Nut structure elastic connection pump valve unit, and increase pump valve unit can be expanded by increasing same item 35,49；
Described pump valve unit is arranged in juxtaposition, and provides between positive liquid stream, pump valve unit by standardization, same item threeway 47
Connection.
4. a kind of modular hydraulic rig for model test hydraulic system according to claim 1, its feature exists
In：Flow measurement module can complete hydraulic system flow measurement, verification, and surveying unit by least one stream constitutes；
Described stream is surveyed unit and is made up of valve 52, reducing 53, reducing 58, straight tube 54, straight tube 57, electromagnetic flowmeter 55, and it is special
Levy be straight tube 54, straight tube 17, electromagnetic flowmeter 55 have same inner diameter size, using same specification size flange, telescopic joint lead to
Cross bolt nut structure and be combined connection, straight tube 54, the length of straight tube 57 are identical, and length is more than the 10 of the diameter of flowmeter 55
Times, measurable positive and negative two-way liquid flow；
Described stream is surveyed unit entery and delivery port and is connected with threeway 50,65, and threeway 50,65 is standardization, same specification product, has
Interchangeability, carries out elastic connection stream and surveys unit using same specification size flange, telescopic joint, and can be by increasing same item threeway
51st, 66 increase stream survey unit is expanded；
Described stream is surveyed unit and is arranged in juxtaposition, and installing electromagnetic flowmeter diameter can be of different sizes, also can be identical.
5. a kind of modular hydraulic rig for model test hydraulic system according to claim 1, its feature exists
In：Voltage stabilizing module can provide Large Copacity, the hydraulic boundary conditions of stabilization, be made up of at least one pressurized tank unit；
Described pressurized tank unit is by flange 67, lower margin 68, drainpipe 69, peep-hole 71, sensor interface 72,70, pressure cap
80th, gas interface 81, tank body 74, tank flange 76, telescopic joint flange 77,79, telescopic joint 78, blind plate 73, flow steadying grid 82 are constituted
Described flange 67 connects the elastic telescopic joint of flow module by bolt nut structure；
Described lower margin 68 is installed on the pre-buried slide rail of test-bed, can be moved with front and rear big displacement；
Described drainpipe 69 has standardization flange-interface, for blowdown pressure tank unit internal liquid, easy access；
Described peep-hole 71 has transparent high-pressure glass form, observes pressurized tank unit internal liquid state；Described sensing
Device interface 70,72 uses the measuring apparatus such as standard transducer internal thread perforate, connection liquid level gauge, thermometer, pressure sensor；
Described pressure cap 80, gas interface 81 are the pressurization of pressurized tank unit, vacuumize function generating means；
Described gas interface 81 has standardization female thread structure, external pressurization, vaccum-pumping equipment；
Described pressure cap 80 is adjusted, compensator or trimmer pressure tank unit internal pressure；
Described tank body 74 is attached with telescopic joint 78 by tank flange 76, telescopic joint flange 77 and bolt nut structure,
The connection is unclamped, telescopic joint 78 realizes that big distance is moved forward and backward according to model unit installation requirement, and junction has sealing structure；
Described blind plate 73 is arranged on telescopic joint 78, and blind plate 73 is connected with telescopic joint flange 79 by bolt nut structure
Connect, junction has sealing structure, unclamp the replaceable blind plate 73 of connection；
Described blind plate 73 is parametrization, high intensity circular steel plate, is connected with model unit, can be according to prototype group interface shape
It is open, and is attached by welding manner, when changing different model units, changing blind plate 73 can implementation model unit
It is connected with the replacing of Voltage stabilizing module；
Described flow steadying grid 82 is round high-strength steel sheet, and diameter is identical with the internal diameter of tank body 74, and by being welded to connect in tank body
On 74, according to experiment to flow stability requirement, flow steadying grid 82 carries out the connection position of array perforate, hole size and quantity and tank body
Put, determined by water force；
Described pressurized tank unit can be installed in parallel in model unit side, can also be disposed in series in model unit both sides, pressure
Tank head and the tail are positioned opposite, with the module such as flow module, model unit composition hydraulic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621117086.7U CN206192627U (en) | 2016-10-12 | 2016-10-12 | Modular hydraulic machinery model test bench hydraulic circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621117086.7U CN206192627U (en) | 2016-10-12 | 2016-10-12 | Modular hydraulic machinery model test bench hydraulic circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206192627U true CN206192627U (en) | 2017-05-24 |
Family
ID=58729988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621117086.7U Withdrawn - After Issue CN206192627U (en) | 2016-10-12 | 2016-10-12 | Modular hydraulic machinery model test bench hydraulic circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206192627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441800A (en) * | 2016-10-12 | 2017-02-22 | 清华大学 | Modularized hydraulic circulating system of hydraulic mechanical model test stand |
-
2016
- 2016-10-12 CN CN201621117086.7U patent/CN206192627U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441800A (en) * | 2016-10-12 | 2017-02-22 | 清华大学 | Modularized hydraulic circulating system of hydraulic mechanical model test stand |
| CN106441800B (en) * | 2016-10-12 | 2019-06-18 | 清华大学 | A kind of modular hydraulic rig for model test hydraulic system |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170524 Effective date of abandoning: 20190618 |
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| AV01 | Patent right actively abandoned |