CN104359699B - A kind of multi-parameter target simulation experimental rig under unified thermal source - Google Patents
A kind of multi-parameter target simulation experimental rig under unified thermal source Download PDFInfo
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- CN104359699B CN104359699B CN201410714704.5A CN201410714704A CN104359699B CN 104359699 B CN104359699 B CN 104359699B CN 201410714704 A CN201410714704 A CN 201410714704A CN 104359699 B CN104359699 B CN 104359699B
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Abstract
The invention belongs to Vehicle Engineering, the multi-parameter target simulation experimental rig under a kind of unified thermal source is disclosed, including：Oil return house steward, oil-feed house steward and the multichannel pilot passageway being arranged in parallel on oil return house steward, oil-feed house steward, include heat exchange oil circuit and cyclic test medium road per road pilot passageway；The oil inlet connection oil-feed house steward of heat exchange oil circuit, the oil-out connection oil return house steward of heat exchange oil circuit；The test(ing) medium inlet and outlet on cyclic test medium road connects heat exchange oil circuit respectively；Valve is provided with heat exchange oil circuit, to control whether the fluid in oil-feed house steward is passed through in heat exchange oil circuit.The present invention can be to the multichannel testpieces in special vehicle cooling system hot model qualification process, different working medium under unified thermal source, carry out multiple target parameter integrative control, multichannel target flow, temperature can accurately be regulated and controled, the hot test purpose of the various operating condition of test of the different configuration of cooling system of simulation is met, with stronger engineer applied performance.
Description
Technical field
The invention belongs to Vehicle Engineering, and in particular to the multi-parameter target simulation experiment dress under a kind of unified thermal source
Put.
Background technology
Special vehicle cooling system heat model test be to simulate the heat of the heat generating components such as Engines Used In Special Vehicle assembly,
In compact piggyback pod space is simulated, actual cooling system is installed, studies whether it effectively takes away its power assembly institute
Whether the heat dissipation capacity and radiating distribution needed be reasonable, reaches preferred arrangement piggyback pod and improves the ability of special vehicle cooling system
Purpose, so as to verify the cooling system of design so that the design cycle shortens.
Because the power of special vehicle is larger, the compact conformation brought therewith, heat dissipation capacity is very big, and vehicle motor, biography
Dynamic case, the radiating for turning to the part such as machine and various generators, motor, bring all kinds of heat exchangers more, from the angle of heat exchanger
Degree says that exchange heat the existing oil-water of species, and oil-oil, oil-gas has oil-gas, water-gas, gas-gas etc. again；Say cold from test(ing) medium is changed
But liquid, air, engine motor oil, transmission machine oil, turn to machine oil etc.；The nominal operation situation of each testpieces has very big difference,
Working medium flow and the temperature design point on its each road are different from.In the past to the experiment of cooling system of vehicle heat-sinking capability only to single
Testpieces enters the experimental test of trip temperature, flow, or carries out simple target parameter to different testpieces using multiple thermals source
Test, such test ignores the influence situation that intercouples of the thermal source between each testpieces, the result measured completely
It is unable to the heat-sinking capability situation of actual response vehicle.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is：There is provided a kind of under unified thermal source, disclosure satisfy that to multiple test parts
The device that is accurately controlled of the target component such as different temperature, heat, flow, pressure.
(2) technical scheme
In order to solve the above-mentioned technical problem, the present invention provides the multi-parameter target simulation experiment dress under a kind of unified thermal source
Put, it includes：Oil return house steward 11, oil-feed house steward 12 and the multichannel experiment being arranged in parallel on oil return house steward 11, oil-feed house steward 12
Passage, includes heat exchange oil circuit and cyclic test medium road per road pilot passageway；The oil inlet connection oil-feed house steward 12 of heat exchange oil circuit,
The oil-out connection oil return house steward 11 of heat exchange oil circuit；The test(ing) medium inlet and outlet on cyclic test medium road connects heat exchange respectively
Oil circuit；Valve is provided with heat exchange oil circuit, to control whether the fluid in oil-feed house steward 12 is passed through in heat exchange oil circuit.
Preferably, the heat exchange oil circuit includes heat exchanger 5, deep fat pump group 6, the second Pneumatic three-way valve 7, the first valve 8, the
Two valves 9, the 3rd valve 10；The pump group 6 that exchanges heat oil inlet connection oil-feed house steward 12, between heat exchange pump group 6 and oil-feed house steward 12
Second Pneumatic three-way valve 7 and the second valve 9 are set on connecting line, and the second valve 9 goes out close to oil-feed house steward 12, heat exchange pump group 6
Hydraulic fluid port connects the oil inlet of heat exchanger 5, and the oil-out of heat exchanger 5 connects oil return house steward 11 by the first valve 8；Second valve 9 enters
Connecting line is provided between liquid mouthful end and the liquid outlet end of the first valve 8, the 3rd valve 10 is set on the connecting line, passed through
Whether the fluid in the 3rd valve 10 control oil-feed house steward 12 is passed through in heat exchange oil circuit.
Preferably, the controller connection of second Pneumatic three-way valve 7 is arranged on the TEMP at the oil-out of heat exchanger 5
Device, the temperature of the test(ing) medium that the controller of the second Pneumatic three-way valve 7 flows out according to heat exchanger 5 adjusts the second Pneumatic three-way valve 7
Aperture, the second Pneumatic three-way valve 7 connected by the connecting line between connecting line and the valve 8 of heat exchanger 5 and first.
Preferably, the heat exchange pump group 6 oil inlet front end is provided with the connection between the connection valve 8 of heat exchanger 5 and first
The oil return pipe of pipeline.
Preferably, the cyclic test medium road includes exerciser 1, flowmeter 2, the first Pneumatic three-way valve 3, frequency conversion pump group
4；The test(ing) medium outlet and the test(ing) medium import of exerciser 1 of first Pneumatic three-way valve 3 connection heat exchanger 5, the examination of exerciser 1
Media outlet connection frequency conversion pump group 4 is tested, the test(ing) medium exit of exerciser 1 is additionally provided with flowmeter 2.
Preferably, the controller connection flow gauge 2 of first Pneumatic three-way valve 3, the controller connection flow of frequency conversion pump group 4
The test(ing) medium flow that gauge 2, the controller of the first Pneumatic three-way valve 3 and the controller of frequency conversion pump group 4 are recorded according to flowmeter 2
Information controls the uninterrupted for the aperture and frequency conversion pump group 4 for adjusting the first Pneumatic three-way valve 3 to correspond to.
(3) beneficial effect
Multi-parameter target simulation experimental rig under the unified thermal source that above-mentioned technical proposal is provided, is cooled down to special vehicle
Multichannel testpieces, different working medium in system hot model qualification process carry out multiple target parameter and integrally controlled under unified thermal source
System, can accurately be regulated and controled to multichannel target flow, temperature, reach the cooling of the different working medium multichannel target components of special vehicle
System Hot Analogue Experimental, meets the hot test purpose of the various operating condition of test of the different configuration of cooling system of simulation, has
Stronger engineer applied performance.
Brief description of the drawings
Fig. 1 is the structural representation for the multi-parameter target simulation experimental rig that the embodiment of the present invention is unified under thermal source.
In figure：1- exercisers；2- flowmeters；The Pneumatic three-way valves of 3- first；4- frequency conversion pump groups；5- heat exchangers；6- hot oil pumps
Group；The Pneumatic three-way valves of 7- second；The valves of 8- first；The valves of 9- first；The valves of 10- first；11- oil return house stewards；12- oil-feeds are total
Pipe.
Embodiment
To make the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to the tool of the present invention
Body embodiment is described in further detail.
In the description of the invention, it is necessary to explanation, term " on ", " under ", "left", "right", " top ", " bottom ", " interior ",
The orientation or position relationship of instructions such as " outer " are, based on orientation shown in the drawings or position relationship, to be for only for ease of and describe this hair
Bright and simplified description, rather than instruction or the signified device of hint or element must be with specific orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " are only used for retouching
Purpose is stated, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " company
Connect " it should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or it is integrally connected；It can be machine
Tool is connected or electrically connected；Can be directly connected to or be indirectly connected with by intermediary, can be two
The connection of element internal.For the ordinary skill in the art, can regard concrete condition understands above-mentioned term in this hair
Concrete meaning in bright.
In addition, in the description of the invention, unless otherwise indicated, " multiple " are meant that two or more.
Shown in reference picture 1, the present embodiment experimental rig includes：Oil return house steward 11, oil-feed house steward 12 and to be connected in parallel on oil return total
Multichannel pilot passageway on pipe 11, oil-feed house steward 12, heat exchange oil circuit and cyclic test medium road, heat exchange are included per road pilot passageway
Oil circuit includes heat exchanger 5, deep fat pump group 6, the second Pneumatic three-way valve 7, the first valve 8, the second valve 9, the 3rd valve 10, circulation
Test(ing) medium road includes exerciser 1, flowmeter 2, the first Pneumatic three-way valve 3, frequency conversion pump group 4.
Specifically, heat exchange pump group 6 oil inlet connection oil-feed house steward 12, the connection between heat exchange pump group 6 and oil-feed house steward 12
Second Pneumatic three-way valve 7 and the second valve 9 are set on pipeline, and the second valve 9 is close to oil-feed house steward 12, and exchange heat the oil-out of pump group 6
The oil inlet of heat exchanger 5 is connected, the oil-out of heat exchanger 5 connects oil return house steward 11 by the first valve 8；The inlet of second valve 9
Connecting line is provided between end and the liquid outlet end of the first valve 8, the 3rd valve 10 is set on the connecting line；Second is pneumatic
The controller connection of triple valve 7 is arranged on the temperature sensor at the oil-out of heat exchanger 5, the controller root of the second Pneumatic three-way valve 7
The aperture of the second Pneumatic three-way valve 7 is adjusted according to the temperature of the test(ing) medium of the outflow of heat exchanger 5, the second Pneumatic three-way valve 7 passes through
Connecting line between connecting line and the valve 8 of heat exchanger 5 and first is connected.
Heat exchange pump group 6 oil inlet front end is provided with the oil return of the connecting line between the connection valve 8 of heat exchanger 5 and first
Pipe.
The test(ing) medium outlet and the test(ing) medium import of exerciser 1 of first Pneumatic three-way valve 3 connection heat exchanger 5, experiment
The test(ing) medium outlet connection frequency conversion pump group 4 of device 1, the test(ing) medium exit of exerciser 1 is additionally provided with flowmeter 2, the first gas
The controller connection flow gauge 2 of dynamic triple valve 3, the controller connection flow gauge 2 of frequency conversion pump group 4, the control of the first Pneumatic three-way valve 3
The test(ing) medium flow information that device processed and the controller of frequency conversion pump group 4 are recorded according to flowmeter 2 controls to adjust the first gas come correspondence
The aperture of dynamic triple valve 3 and the uninterrupted of frequency conversion pump group 4.
Two pilot passageway are given in the present embodiment diagram, can accordingly increase pilot passageway number according to actual needs
Amount, during being tested using the present embodiment experimental rig, if desired using some passage and is controlled by, then opened
First valve 8, the second valve 9, close the 3rd valve 10；If a certain passage need not be used, the first valve 8, second is closed
Valve 9, opens the 3rd valve 10, can so ensure that the deep fat total amount for returning to oil return house steward 11 from oil-feed house steward 12 is constant, because
And exception will not be produced and bring unstability by ensureing system pressure.
During being tested using the present embodiment experimental rig, by the sets target flow of frequency conversion pump group 4, pass through stream
Gauge 2 feeds back to real-time flow signal after frequency conversion pump group 4 and simultaneously to the first Pneumatic three-way valve 3, and servo adjusts first
The aperture of Pneumatic three-way valve 3, so that stability of flow.
The control of temperature is the monitoring temperature exported by the test(ing) medium of heat exchanging device 5, and feeds back to the second Pneumatic three-way
Regulating valve 7, according to the demand of temperature, adjusts the aperture of the second pneumatic three-way control valve 7, so as to add institute's calorific requirement, reaches examination
Test medium temperature and rise to target stabilization, after temperature reaches, then servo is adjusted the aperture of the second pneumatic three-way control valve 7, is reached
To the constant of required temperature.
In above-mentioned experimental rig, each branch of unified thermal source is connected in parallel on major loop, and thermal source passes through using conduction oil as working medium
First-class heat exchanger, working medium is tested by the heat transfer of conduction oil to each the examination of road, can select branch number according to the demands of different tests,
And the heat that branch is provided.
Heat exchange oil circuit employs the scheme for determining rotating speed oil feed pump and the second Pneumatic three-way valve as deep fat pump group, is turning surely
Oil return pipe is devised before fast oil feed pump so that heat exchanger works under the conditions of constant flow, oil feed pump is all the time on specified oil-feeding points
Work, so once heat exchange is the heat exchange of constant flow, and it is to overcome the charge oil pressure under the oil feed pump slow-speed of revolution that it, which acts on one,
Decline, two be that oil feed pump fuel supply flow rate is steady, and three are to leave out pump motor speed setting unit.Heat supplement is by the second Pneumatic three-way
Valve regulation had so both eliminated main pump on major loop and has caused pressure oscillation, the heat temperature of different branches can be met again come what is realized
The demand of degree.
Mainly there are the two important parameters of temperature, flow to the regulation and control that each test loop target component is carried out.For experiment
The control of working medium flow parameter is main to assemble the structure realization for closing the first Pneumatic three-way valve using variable frequency pump.It is to utilize frequency conversion first
Pump group carries out VFC to target flow, carries out one-level regulation and control to experiment working medium target flow using frequency conversion pump group so that stream
Control accuracy is measured in ± 1m3/h.Because pump group circulation operating pressure is fluctuated therewith, rated operation point is especially significantly less than, is supplied
While oily flow declines, pressure also declines therewith, and this is to cause the unmanageable main cause of flow.This experimental rig will become
Import of the frequency pump stack design in thermal source heat exchanger so that thermal source heat exchanger plays certain filter action, while first pneumatic three
Port valve is designed between thermal source heat exchanger experiment sender property outlet and exerciser entrance, and wherein primary Ioops are returned directly to frequency conversion pump group
Entrance, such oil feed pump can rotary speed working near rated point, while reducing before pump the problems such as being cavitated caused by negative pressure, greatly
The flow deviation that big reduction is caused due to pressure oscillation so that flow control accuracy ensures in ± 0.2m3/ h, so as to meet convection current
Measure the control requirement of parameter.Flowmeter 2 is designed after the experiment sender property outlet of exerciser 1, and one is that temperature is relatively low, and two be flow phase
To stable.
The present embodiment is due to using unified thermal source, and multiplexer channel utilizes combination for the difference of control target temperature
Using cooperatively for formula valve and pneumatic regulating three-way valve, controls the heat of heat exchanger hot side medium so that heat exchanger cold side is tested
The temperature of medium reaches each required temperature range, and precision can be at ± 0.1 DEG C after control；Using the method for combined valve,
It can both ensure that flexibly selection uses passage, was avoided that because the unexpected step-down of system heat sources rate-of flow is caused to heat source system again
Influence.
The present invention is to more in special vehicle cooling system hot model qualification process it can be seen from above-mentioned technical proposal
Road testpieces, different working medium carry out multiple target parameter integrative control, multichannel target flow, temperature can be entered under unified thermal source
The accurate regulation and control of row, reach the cooling system Hot Analogue Experimental of the different working medium multichannel target components of special vehicle, meet simulation
The hot test purpose of the various operating condition of test of different configuration of cooling system, with stronger engineer applied performance.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these improve and deformed
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. the multi-parameter target simulation experimental rig under a kind of unified thermal source, it is characterised in that including：Oil return house steward (11), enter
Oily house steward (12) and the multichannel pilot passageway being arranged in parallel on oil return house steward (11), oil-feed house steward (12), per road pilot passageway
Including heat exchange oil circuit and cyclic test medium road；The oil inlet connection oil-feed house steward (12) of heat exchange oil circuit, exchange heat the fuel-displaced of oil circuit
Mouth connection oil return house steward (11)；The test(ing) medium inlet and outlet on cyclic test medium road connects heat exchange oil circuit respectively；Heat exchange oil
Valve is provided with road, to control whether the fluid in oil-feed house steward (12) is passed through in heat exchange oil circuit；
The heat exchange oil circuit includes heat exchanger (5), deep fat pump group (6), the second Pneumatic three-way valve (7), the first valve (8), second
Valve (9), the 3rd valve (10)；Exchange heat pump group (6) oil inlet connection oil-feed house steward (12), heat exchange pump group (6) and oil-feed house steward
(12) the second Pneumatic three-way valve (7) and the second valve (9) are set on the connecting line between, and the second valve (9) is total close to oil-feed
Manage (12), heat exchange pump group (6) oil-out connection heat exchanger (5) oil inlet, heat exchanger (5) oil-out is connected by the first valve (8)
Take back oily house steward (11)；Connecting tube is provided between the inlet end of second valve (9) and the liquid outlet end of the first valve (8)
3rd valve (10) is set on road, the connecting line, whether fluid in oil-feed house steward (12) is controlled by the 3rd valve (10)
It is passed through in heat exchange oil circuit.
2. the multi-parameter target simulation experimental rig under unified thermal source as claimed in claim 1, it is characterised in that described second
The controller connection of Pneumatic three-way valve (7) is arranged on the temperature sensor at heat exchanger (5) oil-out, the second Pneumatic three-way valve
(7) temperature of the test(ing) medium that controller flows out according to heat exchanger (5) adjusts the aperture of the second Pneumatic three-way valve (7), second
Pneumatic three-way valve (7) is connected by the connecting line between connecting line and heat exchanger (5) and the first valve (8).
3. the multi-parameter target simulation experimental rig under unified thermal source as claimed in claim 1, it is characterised in that the heat exchange
Pump group (6) oil inlet front end is provided with the oil return pipe of the connecting line between connection heat exchanger (5) and the first valve (8).
4. the multi-parameter target simulation experimental rig under unified thermal source as any one of claim 1-3, its feature exists
In the cyclic test medium road includes exerciser (1), flowmeter (2), the first Pneumatic three-way valve (3), frequency conversion pump group (4)；The
The test(ing) medium outlet and the test(ing) medium import of exerciser (1) of one Pneumatic three-way valve (3) connection heat exchanger (5), exerciser (1)
Test(ing) medium outlet connection frequency conversion pump group (4), the test(ing) medium exit of exerciser (1) is additionally provided with flowmeter (2).
5. the multi-parameter target simulation experimental rig under unified thermal source as claimed in claim 4, it is characterised in that described first
The controller connection flow gauge (2) of Pneumatic three-way valve (3), the controller connection flow gauge (2) of frequency conversion pump group (4), first is pneumatic
The test(ing) medium flow information that the controller of triple valve (3) and the controller of frequency conversion pump group (4) are recorded according to flowmeter (2) come pair
It should control to adjust the aperture of the first Pneumatic three-way valve (3) and the uninterrupted of frequency conversion pump group (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714704.5A CN104359699B (en) | 2014-12-02 | 2014-12-02 | A kind of multi-parameter target simulation experimental rig under unified thermal source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714704.5A CN104359699B (en) | 2014-12-02 | 2014-12-02 | A kind of multi-parameter target simulation experimental rig under unified thermal source |
Publications (2)
| Publication Number | Publication Date |
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| CN104359699A CN104359699A (en) | 2015-02-18 |
| CN104359699B true CN104359699B (en) | 2017-09-26 |
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| CN201410714704.5A Expired - Fee Related CN104359699B (en) | 2014-12-02 | 2014-12-02 | A kind of multi-parameter target simulation experimental rig under unified thermal source |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748076B (en) * | 2017-12-01 | 2023-09-12 | 河南新航航空设备科技有限公司 | Conversion pipeline system for detecting fuel oil of radiator |
| CN109141894A (en) * | 2018-10-05 | 2019-01-04 | 北京航天三发高科技有限公司 | A kind of engine testsand gas handling system |
| CN114323722B (en) * | 2021-12-31 | 2023-09-15 | 中国第一汽车股份有限公司 | Permanent magnet motor end winding spray test device and test method |
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| CN102507193B (en) * | 2011-11-01 | 2013-11-13 | 浙江大学 | Power compartment simulation system |
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| JPH03194420A (en) * | 1989-12-22 | 1991-08-26 | Toshiba Corp | System test device |
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