CN206440357U - No. 15 aircraft fluid micro flow standard devices - Google Patents
No. 15 aircraft fluid micro flow standard devices Download PDFInfo
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- CN206440357U CN206440357U CN201621456409.5U CN201621456409U CN206440357U CN 206440357 U CN206440357 U CN 206440357U CN 201621456409 U CN201621456409 U CN 201621456409U CN 206440357 U CN206440357 U CN 206440357U
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Abstract
The utility model discloses a kind of No. 15 aircraft fluid micro flow standard devices, including constant-temperature oil tank, constant-temperature oil tank connects constant-temperature oil tank oil pump, constant-temperature oil tank oil pump connects the left port of three-way control valve, the right output port of three-way control valve connects the entrance point of the first stop valve, the port of export of first stop valve connects the left end import of heat exchanger, the tested flowmeter of right-hand member outlet connection of heat exchanger, the upper port of three-way control valve connects the upper end import of heat exchanger by alternating temperature flowline, and the upper end outlet of heat exchanger connects the oil return opening of constant-temperature oil tank by alternating temperature oil return pipe；The other end of tested flowmeter is connected with fluid oil discharging device by pipeline, and the lower end of fluid oil discharging device is provided with thin footpath nozzle, and the lower end of thin footpath nozzle is provided with weight box, and weight box is located at the upper surface of weighing apparatus；The top of weight box is provided with fluid draw-out device, and the lower end of fluid draw-out device is provided with fuel sucking pipe.The utility model can be measured directly to volume flow and mass flow, and the accuracy of measuring is higher.
Description
Technical field
The utility model belongs to flow detection device technical field, relates generally to a kind of No. 15 aircraft fluid tiny flow quantities
Standard set-up.
Background technology
Flux unit is divided into mass flow and volume flow, and both are converted by fluid density, density accuracy collection
Difficulty is larger, and larger error can be brought by introducing density progress conversion；In addition the flowmeter flux lower limit very little of some specific uses,
And have temperature requirement to test medium.Existing hydraulic fluid flow rate standard set-up uses single operation principle, can only directly obtain mark
One of quasi- volume flow or standard mass flow, need to can just obtain standard mass flow and volume flow using Media density conversion
Amount, the introducing of density value brings conversion error, reduces the degree of accuracy of flow measurement.In addition existing apparatus flux lower limit value it is big and
Extent of alternating temperature is narrow can not to fully meet the requirement of experiment of specific use flowmeter.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides one kind and is integrated with mass method and volumetric method and adjustable temperature
No. 15 wide aircraft fluid micro flow standard devices of scope.
The technical solution of the utility model is：
A kind of No. 15 aircraft fluid micro flow standard devices, including constant-temperature oil tank, constant-temperature oil tank oil pump, threeway regulation
Valve, heat exchanger；The oil-out of constant-temperature oil tank connects constant-temperature oil tank oil pump, the oil-out connection three of constant-temperature oil tank oil pump by pipeline
The left port of logical regulating valve, the right output port of three-way control valve connects the entrance point of the first stop valve, the port of export of the first stop valve
The left end import of heat exchanger is connected, the tested flowmeter of right-hand member outlet connection of heat exchanger, the upper port of three-way control valve passes through change
Warm flowline connects the upper end import of heat exchanger, and the upper end outlet of heat exchanger connects the oil return of constant-temperature oil tank by alternating temperature oil return pipe
Mouthful；The other end of tested flowmeter is connected with fluid oil discharging device by pipeline, and the lower end of fluid oil discharging device is sprayed provided with thin footpath
Mouth, the lower end of thin footpath nozzle is provided with weight box, and weight box is located at the upper surface of weighing apparatus；Dress is extracted provided with fluid in the top of weight box
Put, the lower end of fluid draw-out device is provided with fuel sucking pipe；The side wall of pipeline between first stop valve and heat exchanger is connected by pipeline
The second stop valve is connected to, the second stop valve is connected with piston fuel delivery device.
Preferably, described fluid oil discharging device includes mechanical commutation valve, lateral cylinder, the first solenoid directional control valve, quilt
The other end of flowmeter is examined by the entrance point of pipeline connecting machine tool reversal valve, the left port of export of mechanical commutation valve passes through bypass pipe
Collection fuel tank is connected to, the right port of export of mechanical commutation valve is connected with oil pipe of weighing, and the lower end for oil pipe of weighing is connected with transition and connect
Head, the lower end of transit joint is connected with thin footpath nozzle, and thin footpath nozzle is located in the top of weight box or insertion weight box；Machinery is changed
It is fixedly connected to the drive shaft of valve by joint with the horizontal piston bar of lateral cylinder, the left cylinder of lateral cylinder passes through left side tracheae
Connected with the upper left port of the first solenoid directional control valve, the right side that the right cylinder of lateral cylinder passes through right side tracheae and the first solenoid directional control valve
Upper port is connected, and the lower-left port of the first solenoid directional control valve is connected with the air entraining pipe of horizontal buckling to the left, the gas outlet of air entraining pipe
Be located at the side for oil pipe of weighing, the bottom right port of the first solenoid directional control valve is connected with the first air inlet pipe, the first air inlet pipe it is another
End is connected with first gas generator,
Preferably, described fluid draw-out device includes self priming pump, vertical cylinder and the second solenoid directional control valve, self priming pump
Lower end be connected with oil return pipe and fuel sucking pipe, oil return pipe is connected with fuel sucking pipe, and oil return pipe is connected to collection fuel tank；Vertical cylinder is set
In the surface of weight box, the lower end of the vertical piston bar of vertical cylinder is connected with oil pipe fixed block, and fuel sucking pipe is installed on oil pipe
In fixed block, the lower end of fuel sucking pipe is connected with oil absorption head；The entrance point of second solenoid directional control valve is connected with the second air inlet pipe, second
The other end of air inlet pipe is connected with second gas generator, the left port of export of the second solenoid directional control valve by lower end tracheae with it is vertical
The lower cylinder connection of cylinder, the right port of export of the second solenoid directional control valve is connected by upper end tracheae with the upper cylinder half of vertical cylinder.
Preferably, described piston fuel delivery device include base, twin shaft double action piston cylinder, the first check valve, oil exit pipe,
Second check valve, fuel tank oil suction pipe, the 3rd check valve, the 4th check valve；Twin shaft double action piston cylinder is fixedly mounted on the upper of base
End face, the left and right ends of twin shaft double action piston cylinder are coated with to slide in piston rod, the inner chamber of twin shaft double action piston cylinder respectively and installed
There is the piston slided along cavity length direction, two piston rods correspond to the left and right sides for being fixedly connected on piston respectively；Twin shaft is answered
Piston cylinder is provided with the left oilhole connected with inner chamber, the oil-feed that left oilhole passes through pipeline and the first check valve close to the side wall of left end
Mouth is connected with the oil-out of the second check valve, and the oil-out of the first check valve is connected to entering for the second stop valve by oil exit pipe
Mouth end, the oil inlet of the second check valve is connected to oil storage fuel tank by fuel tank oil suction pipe；Twin shaft double action piston cylinder is close to right-hand member
Side wall is provided with the right oilhole connected with inner chamber, and right oilhole passes through pipeline and the 4th oil inlet of check valve and going out for the 3rd check valve
Hydraulic fluid port is connected, and the oil-out of the 4th check valve is connected to the entrance point of the second stop valve by oil exit pipe, the 3rd check valve
Oil inlet is connected to fuel tank by fuel tank oil suction pipe；The upper surface of base is provided with servomotor, and servomotor and twin shaft double action are lived
The upper surface of base between plug cylinder is installed with the work being provided with electronic slide unit, electronic slide unit with twin shaft double action piston cylinder
Sliding block is set with the leading screw that stopper rod be arranged in parallel, leading screw, sliding block is provided with the internal thread matched with leading screw, corresponding with sliding block double
Fixed cover is equipped with first support on the piston rod of axle double action piston cylinder, and the piston rod of sliding block and twin shaft double action piston cylinder passes through first
Support is fixedly connected；Be installed with the grating parallel with leading screw on the base of electronic slide unit side, the slider of grating with
The sliding block of electronic slide unit is fixedly connected by second support.
The beneficial effects of the utility model are：
The utility model has advantages below compared with the prior art：
1. directly can be measured to volume flow and mass flow, without density conversion, the accuracy of measuring is higher；
2. extent of alternating temperature is wide, temperature-controlled precision is high, Caloric test requirement disclosure satisfy that；
3. flux lower limit is low, tiny flow quantity metering requirement can be met.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1 is constant-temperature oil tank, and 2 be constant-temperature oil tank oil pump, and 3 be three-way control valve, and 4 be the first stop valve, and 5 be heat exchange
Device, 6 be tested flowmeter, and 7 be fluid oil discharging device, and 8 be fluid draw-out device, and 9 be piston fuel delivery device, and 10 be the second cut-off
Valve, 11 be alternating temperature flowline, and 12 be alternating temperature oil return pipe, and 13 be weight box, and 14 be weighing apparatus, and 15 be collection fuel tank；
701 be thin footpath nozzle, and 702 be transit joint, and 703 be oil pipe of weighing, and 704 be mechanical commutation valve, and 705 be bypass
Pipe, 706 be air entraining pipe, and 707 be the first solenoid directional control valve, and 708 be the first air inlet pipe, and 709 be right side tracheae, and 710 be left side gas
Pipe, 711 be lateral cylinder, and 712 be horizontal piston bar, and 713 be drive shaft, and 714 be joint, and 715 be timing triggers, and 7151 are
Driving lever；
801 be self priming pump, and 802 be vertical cylinder, and 803 be upper end tracheae, and 804 be the second air inlet pipe, and 805 be the second electromagnetism
Reversal valve, 806 be lower end tracheae, and 807 be oil return pipe, and 808 be fuel sucking pipe, and 809 be vertical piston bar, and 810 be oil pipe fixed block,
811 be oil absorption head；
901 be twin shaft double action piston cylinder, and 902 be the first check valve, and 903 be oil exit pipe, and 904 be the second check valve, and 905 are
Fuel tank oil suction pipe, 906 be the 3rd check valve, and 907 be the 4th check valve, and 908 be first support, and 909 be sliding block, and 910 be electronic
Slide unit, 911 be servomotor, and 912 be second support, and 913 be grating, and 914 be base.
Embodiment
Embodiment of the present utility model is referring to Fig. 1, a kind of No. 15 aircraft fluid micro flow standard devices, bag
Include constant-temperature oil tank, constant-temperature oil tank oil pump, three-way control valve, heat exchanger；The oil-out of constant-temperature oil tank connects thermostatical oil by pipeline
Case oil pump, the oil-out of constant-temperature oil tank oil pump connects the left port of three-way control valve, the right output port connection first of three-way control valve
The entrance point of stop valve, the port of export of the first stop valve connects the left end import of heat exchanger, the right-hand member outlet connection quilt of heat exchanger
Flowmeter is examined, the upper port of three-way control valve is connected by alternating temperature flowline to be brought out on the upper end import of heat exchanger, heat exchanger
Mouth connects the oil return opening of constant-temperature oil tank by alternating temperature oil return pipe；It is fuel-displaced that the other end of tested flowmeter is connected with fluid by pipeline
Device, the lower end of fluid oil discharging device is provided with thin footpath nozzle, and the lower end of thin footpath nozzle is provided with weight box, and weight box is located at weighing apparatus
Upper surface；The top of weight box is provided with fluid draw-out device, and the lower end of fluid draw-out device is provided with fuel sucking pipe；First stop valve and
The side wall of pipeline between heat exchanger is connected with the second stop valve by pipeline, and the second stop valve is connected with piston fuel delivery device.
Preferably, described fluid oil discharging device includes mechanical commutation valve, lateral cylinder, the first solenoid directional control valve, quilt
The other end of flowmeter is examined by the entrance point of pipeline connecting machine tool reversal valve, the left port of export of mechanical commutation valve passes through bypass pipe
Collection fuel tank is connected to, the right port of export of mechanical commutation valve is connected with oil pipe of weighing, and the lower end for oil pipe of weighing is connected with transition and connect
Head, the lower end of transit joint is connected with thin footpath nozzle, and thin footpath nozzle is located in the top of weight box or insertion weight box；Machinery is changed
It is fixedly connected to the drive shaft of valve by joint with the horizontal piston bar of lateral cylinder, the left cylinder of lateral cylinder passes through left side tracheae
Connected with the upper left port of the first solenoid directional control valve, the right side that the right cylinder of lateral cylinder passes through right side tracheae and the first solenoid directional control valve
Upper port is connected, and the lower-left port of the first solenoid directional control valve is connected with the air entraining pipe of horizontal buckling to the left, the gas outlet of air entraining pipe
Be located at the side for oil pipe of weighing, the bottom right port of the first solenoid directional control valve is connected with the first air inlet pipe, the first air inlet pipe it is another
End is connected with first gas generator,
Preferably, described fluid draw-out device includes self priming pump, vertical cylinder and the second solenoid directional control valve, self priming pump
Lower end be connected with oil return pipe and fuel sucking pipe, oil return pipe is connected with fuel sucking pipe, and oil return pipe is connected to collection fuel tank；Vertical cylinder is set
In the surface of weight box, the lower end of the vertical piston bar of vertical cylinder is connected with oil pipe fixed block, and fuel sucking pipe is installed on oil pipe
In fixed block, the lower end of fuel sucking pipe is connected with oil absorption head；The entrance point of second solenoid directional control valve is connected with the second air inlet pipe, second
The other end of air inlet pipe is connected with second gas generator, the left port of export of the second solenoid directional control valve by lower end tracheae with it is vertical
The lower cylinder connection of cylinder, the right port of export of the second solenoid directional control valve is connected by upper end tracheae with the upper cylinder half of vertical cylinder.
Preferably, described piston fuel delivery device include base, twin shaft double action piston cylinder, the first check valve, oil exit pipe,
Second check valve, fuel tank oil suction pipe, the 3rd check valve, the 4th check valve；Twin shaft double action piston cylinder is fixedly mounted on the upper of base
End face, the left and right ends of twin shaft double action piston cylinder are coated with to slide in piston rod, the inner chamber of twin shaft double action piston cylinder respectively and installed
There is the piston slided along cavity length direction, two piston rods correspond to the left and right sides for being fixedly connected on piston respectively；Twin shaft is answered
Piston cylinder is provided with the left oilhole connected with inner chamber, the oil-feed that left oilhole passes through pipeline and the first check valve close to the side wall of left end
Mouth is connected with the oil-out of the second check valve, and the oil-out of the first check valve is connected to entering for the second stop valve by oil exit pipe
Mouth end, the oil inlet of the second check valve is connected to oil storage fuel tank by fuel tank oil suction pipe；Twin shaft double action piston cylinder is close to right-hand member
Side wall is provided with the right oilhole connected with inner chamber, and right oilhole passes through pipeline and the 4th oil inlet of check valve and going out for the 3rd check valve
Hydraulic fluid port is connected, and the oil-out of the 4th check valve is connected to the entrance point of the second stop valve by oil exit pipe, the 3rd check valve
Oil inlet is connected to fuel tank by fuel tank oil suction pipe；The upper surface of base is provided with servomotor, and servomotor and twin shaft double action are lived
The upper surface of base between plug cylinder is installed with the work being provided with electronic slide unit, electronic slide unit with twin shaft double action piston cylinder
Sliding block is set with the leading screw that stopper rod be arranged in parallel, leading screw, sliding block is provided with the internal thread matched with leading screw, corresponding with sliding block double
Fixed cover is equipped with first support on the piston rod of axle double action piston cylinder, and the piston rod of sliding block and twin shaft double action piston cylinder passes through first
Support is fixedly connected；Be installed with the grating parallel with leading screw on the base of electronic slide unit side, the slider of grating with
The sliding block of electronic slide unit is fixedly connected by second support.
The course of work：
Weight method principle is used when calibrating quality flowmeter, the liquid in constant-temperature oil tank experimental temperature is adjusted to, by perseverance
Warm fuel tank oil pump operates the fluid flow in fuel feeding, three-way control valve regulation experiment pipeline, and the liquid shunted away is passed through
Alternating temperature flowline enters the enclosure interior of heat exchanger and carries out heat exchange with liquid in experiment pipeline, so can be in experiment pipeline
Liquid quality very hour ensures that its temperature is adjustable and stably（I.e. experimental liquid flows through constant-temperature oil tank oil pump, threeway regulation successively
Valve, the first stop valve, heat exchanger, tested flowmeter；Liquid for heat exchange flows through constant-temperature oil tank oil pump, threeway regulation successively
Valve, alternating temperature flowline, heat exchanger, alternating temperature oil return pipe）.Liquid through excess temperature and Flow-rate adjustment is met by tested flowmeter
Its requirement of experiment to tiny flow quantity and alternating temperature, liquid, which enters mechanical commutation valve and flowed into through bypass, collects fuel tank（Collect fuel tank and
Constant-temperature oil tank can be same fuel tank）.When commutation, compressed gas is successively through the first air inlet pipe, the first solenoid directional control valve, a left side
Side tracheae enters the left cylinder of lateral cylinder, and the piston of lateral cylinder moves right, and horizontal piston bar hauls driving axial and moved right,
Mechanical commutation valve is switched to right position change state, and liquid enters weight box along flexible oil pipe of weighing, by oil pipe lower end of weighing
Line stream is realized in thin footpath nozzle flow velocity increase.When mechanical commutation valve needs commutation, compressed gas is successively through the first air inlet pipe, first
Solenoid directional control valve, right side tracheae enter the right cylinder of lateral cylinder, and the piston of lateral cylinder is moved to the left, and horizontal piston bar hauls drive
Moving axis is moved to the left, and mechanical commutation valve is switched to left position and swapped out state, and liquid flows into through bypass and collects fuel tank, mechanical commutation valve left cylinder
In gas successively through left side tracheae, the first solenoid directional control valve, air entraining pipe, finally discharged from the gas outlet of air entraining pipe, air entraining pipe
Gas outlet the air-flow produced when swapping out is blown to the oil pipe of weighing of flexibility, oil pipe of weighing is rocked to the inwall of weight box,
The wall built-up of thin footpath nozzle is eliminated by the contact with the inwall of weight box of thin footpath nozzle, raising is weighed, commutate precision.Weigh completion
Afterwards, start liquid draw-out device, compressed gas passes sequentially through the second air inlet pipe, the second solenoid directional control valve, upper end tracheae and enters perpendicular
To the upper cylinder half of cylinder, vertical piston bar is moved down, and oil pipe fixed block drives fuel sucking pipe to move down, the oil suction of fuel sucking pipe lower end
When head enters the bottom of weight box, self priming pump starts oil suction, and liquid finally enters collection fuel tank through fuel sucking pipe, oil return pipe（Collect
Fuel tank and constant-temperature oil tank can be same fuel tank）；Oil suction terminates rear compressed gas and passes sequentially through the second air inlet pipe, the second electromagnetism
Reversal valve, lower end tracheae enter the lower cylinder of vertical cylinder, and vertical piston bar moves up, fuel sucking pipe is pulled out from weight box,
Self priming pump stops oil suction.
When calibration positive displacement and velocity-type timing use volumetric method principle, the first stop valve is closed, second section is opened
Only valve, starts piston fuel delivery device.Servomotor forward and reverse uniform repeated rotation in setting stroke range according to setting speed,
Sliding block and piston on servomotor driving slide unit are at the uniform velocity moved back and forth according to corresponding speed in setting stroke range, and piston is pushed away
Liquid is discharged by check valve in piston cylinder, and liquid flows successively through the two the second stop valves, heat exchanger, tested flowmeter, machine
Tool reversal valve（Now mechanical commutation valve swaps out state in left position）, most flowed into afterwards through bypass and collect fuel tank（Collect fuel tank and perseverance
Warm fuel tank can be same fuel tank）.If necessary to keep the temperature of liquid, while piston fuel delivery device starts, start permanent
Warm fuel tank oil pump, the liquid for heat exchange flow through successively constant-temperature oil tank oil pump, three-way control valve, alternating temperature flowline, heat exchanger,
Alternating temperature oil return pipe.
Wherein when piston is run to the left, the left chamber oil extraction right chamber oil suction of twin shaft double action piston cylinder, liquid in left chamber according to
It is secondary to pass through the first check valve, oil exit pipe, tested flowmeter, mechanical commutation valve, most flowed into afterwards through bypass and collect fuel tank；Constant-temperature oil tank
In liquid sequentially pass through fuel tank oil suction pipe, the 3rd check valve reach twin shaft double action piston cylinder right chamber.Reach left side setting position
Slide unit, sliding block and piston are postponed from trend opposite direction switchover operation, now right chamber oil extraction left chamber oil suction, the liquid in right chamber is successively
By the 4th check valve, oil exit pipe, tested flowmeter, mechanical commutation valve, most flowed into afterwards through bypass and collect fuel tank；In constant-temperature oil tank
Liquid sequentially pass through fuel tank oil suction pipe, the second check valve reach twin shaft double action piston cylinder left chamber.Both piston one side cavity was arranged
Another cavity oil suction while oily, is tested as coherent carry out process, so efficiency high, in addition the outlet of piston cylinder two install it is unidirectional
Valve can voluntarily be opened and closed according to piston movement direction, therefore without manually operating, it is easy-to-use.
Embodiment described above is only that preferred embodiment of the present utility model is described, and is not departing from this reality
On the premise of new design spirit, the various modifications that those of ordinary skill in the art make to the technical solution of the utility model
And improvement, it all should fall into the protection domain that the utility model claims are determined.
Claims (4)
1. a kind of No. 15 aircraft fluid micro flow standard devices, it is characterised in that including constant-temperature oil tank, constant-temperature oil tank oil
Pump, three-way control valve, heat exchanger；The oil-out of constant-temperature oil tank connects constant-temperature oil tank oil pump by pipeline, constant-temperature oil tank oil pump
Oil-out connects the left port of three-way control valve, and the right output port of three-way control valve connects the entrance point of the first stop valve, first section
Only the port of export of valve connects the left end import of heat exchanger, and the right-hand member outlet connection of heat exchanger is detected flowmeter, three-way control valve
Upper port connects the upper end import of heat exchanger by alternating temperature flowline, and the upper end outlet of heat exchanger connects permanent by alternating temperature oil return pipe
The oil return opening of warm fuel tank；The other end of tested flowmeter is connected with fluid oil discharging device, fluid oil discharging device by pipeline
End is provided with thin footpath nozzle, and the lower end of thin footpath nozzle is provided with weight box, and weight box is located at the upper surface of weighing apparatus；Set above weight box
There is fluid draw-out device, the lower end of fluid draw-out device is provided with fuel sucking pipe；The side of pipeline between first stop valve and heat exchanger
Wall is connected with the second stop valve by pipeline, and the second stop valve is connected with piston fuel delivery device.
2. No. 15 aircraft fluid micro flow standard devices according to claim 1, it is characterised in that described fluid
Oil discharging device includes mechanical commutation valve, lateral cylinder, the first solenoid directional control valve, and the other end of tested flowmeter is connected by pipeline
The entrance point of mechanical commutation valve, the left port of export of mechanical commutation valve is connected to collection fuel tank by bypass pipe, mechanical commutation valve
The right port of export is connected with oil pipe of weighing, and the lower end for oil pipe of weighing is connected with transit joint, and the lower end of transit joint is connected with thin footpath
Nozzle, thin footpath nozzle is located in the top of weight box or insertion weight box；The drive shaft of mechanical commutation valve passes through joint and transverse direction
The horizontal piston bar of cylinder is fixedly connected, the upper left port that the left cylinder of lateral cylinder passes through left side tracheae and the first solenoid directional control valve
Connection, the right cylinder of lateral cylinder is connected by right side tracheae with the upper right port of the first solenoid directional control valve, the first solenoid directional control valve
Lower-left port be connected with the air entraining pipe of horizontal buckling to the left, the gas outlet of air entraining pipe is located at the side for oil pipe of weighing, the first electricity
The bottom right port of magnetic reversal valve is connected with the first air inlet pipe, and the other end of the first air inlet pipe is connected with first gas generator.
3. No. 15 aircraft fluid micro flow standard devices according to claim 2, it is characterised in that described fluid
Draw-out device includes self priming pump, vertical cylinder and the second solenoid directional control valve, and the lower end of self priming pump is connected with oil return pipe and fuel sucking pipe,
Oil return pipe is connected with fuel sucking pipe, and oil return pipe is connected to collection fuel tank；Vertical cylinder is located at the surface of weight box, vertical cylinder
The lower end of vertical piston bar is connected with oil pipe fixed block, and fuel sucking pipe is installed in oil pipe fixed block, and the lower end of fuel sucking pipe is connected with
Oil absorption head；The entrance point of second solenoid directional control valve is connected with the second air inlet pipe, and the other end of the second air inlet pipe is connected with the second gas
Body generator, the left port of export of the second solenoid directional control valve is connected by lower end tracheae with the lower cylinder of vertical cylinder, and the second electromagnetism is changed
Connected to the right port of export of valve by upper end tracheae with the upper cylinder half of vertical cylinder.
4. No. 15 aircraft fluid micro flow standard devices according to claim 3, it is characterised in that described piston
Fuel delivery device includes base, twin shaft double action piston cylinder, the first check valve, oil exit pipe, the second check valve, fuel tank oil suction pipe, the 3rd
Check valve, the 4th check valve；Twin shaft double action piston cylinder is fixedly mounted on the upper surface of base, the left and right two of twin shaft double action piston cylinder
End is coated with the piston for being slided in piston rod, the inner chamber of twin shaft double action piston cylinder and being coated with and being slided along cavity length direction respectively,
Two piston rods correspond to the left and right sides for being fixedly connected on piston respectively；Twin shaft double action piston cylinder close to left end side wall be provided with
The left oilhole of inner chamber connection, left oilhole is connected by pipeline with the oil inlet of the first check valve and the oil-out of the second check valve
Logical, the oil-out of the first check valve is connected to the entrance point of the second stop valve by oil exit pipe, and the oil inlet of the second check valve leads to
Cross fuel tank oil suction pipe and be connected to oil storage fuel tank；Twin shaft double action piston cylinder is provided with the right oil connected with inner chamber close to the side wall of right-hand member
Hole, right oilhole is connected by pipeline with the oil inlet of the 4th check valve and the oil-out of the 3rd check valve, the 4th check valve
Oil-out is connected to the entrance point of the second stop valve by oil exit pipe, and the oil inlet of the 3rd check valve is connected by fuel tank oil suction pipe
To fuel tank；The upper surface of base is provided with servomotor, and the upper surface of the base between servomotor and twin shaft double action piston cylinder is consolidated
Dingan County is equipped with electronic slide unit, electronic slide unit and is provided with the leading screw being be arranged in parallel with the piston rod of twin shaft double action piston cylinder, leading screw
On be set with sliding block, sliding block is provided with the internal thread matched with leading screw, the piston rod of twin shaft double action piston cylinder corresponding with sliding block
Fixed cover is equipped with first support, and sliding block is fixedly connected with the piston rod of twin shaft double action piston cylinder by first support；Electronic slide unit
The grating parallel with leading screw is installed with the base of side, the sliding block of the slider of grating and electronic slide unit passes through second
Support is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621456409.5U CN206440357U (en) | 2016-12-28 | 2016-12-28 | No. 15 aircraft fluid micro flow standard devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621456409.5U CN206440357U (en) | 2016-12-28 | 2016-12-28 | No. 15 aircraft fluid micro flow standard devices |
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| CN206440357U true CN206440357U (en) | 2017-08-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643992A (en) * | 2016-12-28 | 2017-05-10 | 新乡航空工业(集团)有限公司 | 15# aviation hydraulic fluid micro flow standard device |
| CN109813399A (en) * | 2019-03-13 | 2019-05-28 | 洛阳西苑车辆与动力检验所有限公司 | A kind of self-adaption constant liquid level constant-current stabilizer and its operating method |
| CN112304396A (en) * | 2019-07-31 | 2021-02-02 | 北京振兴计量测试研究所 | Micro flow calibration system |
| CN115900861A (en) * | 2023-03-13 | 2023-04-04 | 西安成立航空制造有限公司 | Aero-engine nozzle flow testing device and method |
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2016
- 2016-12-28 CN CN201621456409.5U patent/CN206440357U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643992A (en) * | 2016-12-28 | 2017-05-10 | 新乡航空工业(集团)有限公司 | 15# aviation hydraulic fluid micro flow standard device |
| CN106643992B (en) * | 2016-12-28 | 2023-05-23 | 新乡航空工业(集团)有限公司 | No. 15 aviation hydraulic oil micro-flow standard device |
| CN109813399A (en) * | 2019-03-13 | 2019-05-28 | 洛阳西苑车辆与动力检验所有限公司 | A kind of self-adaption constant liquid level constant-current stabilizer and its operating method |
| CN109813399B (en) * | 2019-03-13 | 2023-11-14 | 洛阳西苑车辆与动力检验所有限公司 | Self-adaptive constant-liquid-level flow stabilizer and operation method thereof |
| CN112304396A (en) * | 2019-07-31 | 2021-02-02 | 北京振兴计量测试研究所 | Micro flow calibration system |
| CN112304396B (en) * | 2019-07-31 | 2022-07-08 | 北京振兴计量测试研究所 | Micro flow calibration system |
| CN115900861A (en) * | 2023-03-13 | 2023-04-04 | 西安成立航空制造有限公司 | Aero-engine nozzle flow testing device and method |
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