CN209356188U - A kind of aerofluid self-sealing connector testing stand - Google Patents
A kind of aerofluid self-sealing connector testing stand Download PDFInfo
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- CN209356188U CN209356188U CN201920344669.0U CN201920344669U CN209356188U CN 209356188 U CN209356188 U CN 209356188U CN 201920344669 U CN201920344669 U CN 201920344669U CN 209356188 U CN209356188 U CN 209356188U
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Abstract
The utility model discloses a kind of aerofluid self-sealing connector testing stands, belong to connector inspection apparatus field, including controller, the first impulse circuit and the second impulse circuit；First impulse circuit is at least passed sequentially through pipeline series connection closed loop and is formed by fuel tank, constant displacement pump one, check valve one, accumulator, band table pressure reducing valve, high frequency sound ratio throttling unit one, test specimen tooling one, flow sensor one；One both ends of test specimen tooling are parallel with differential pressure pickup one；Second impulse circuit is at least passed sequentially through pipeline series connection closed loop and is formed by fuel tank, constant displacement pump one, check valve one, accumulator, band table pressure reducing valve, high frequency sound ratio throttling unit two, test specimen tooling two, flow sensor two；Two both ends of test specimen tooling are parallel with differential pressure pickup two.A kind of aerofluid self-sealing connector testing stand of the utility model, can reduce the driving power of constant displacement pump, and reliable operation, response are rapid, easy to operate.
Description
Technical field
The utility model belongs to connector inspection apparatus field, relates in particular to a kind of aerofluid self-sealing connector
Testing stand.
Background technique
In military aircraft and ground maintenance equipment, for improve pipeline overhaul efficiency, reduce disassembly process in water clock and
Pollution to channel interior medium, device has several fluid self-sealing connectors in pipe-line system.Connector male head and mother
When head connection, two-way fluid free flow, after male connector and female disconnection, fluid is closed in connector and pipeline.Connection
The resistance to flow attack flow behavior of device, pressuredrop characteristic are the important technology performance indicators of product, and correlation test is that product is reliable
The important component of property and qualification test.
The testing field country is in blank at present.A kind of aerofluid self-sealing connector testing stand that we develop,
It can complete my six kinds of latus rectum connector short duration impact flow tests of company DN03~DN16, long duration impact flowing
Whether test, pressure drop experimental test, sealing leak test, the technical parameter performance for detecting connector meet design requirement.
Summary of the invention
The purpose of this utility model is to provide a kind of aerofluid self-sealing connector testing stand in view of the above shortcomings,
Intend to solve how to complete my company DN03~DN16 six kinds of latus rectum connector short durations impact flow tests, long duration
Flow test, pressure drop experimental test, sealing leak test are impacted, whether the technical parameter performance for detecting connector meets design
It is required that the problem of, and the driving power of constant displacement pump can be reduced, reliable operation, response are rapid, easy to operate.To realize above-mentioned mesh
, the utility model provides the following technical solutions:
A kind of aerofluid self-sealing connector testing stand, including controller, the first impulse circuit and the second impulse circuit；
First impulse circuit is at least by fuel tank, constant displacement pump 1, check valve 1, accumulator 11, band table pressure reducing valve 12, high frequency sound
Ratio throttling unit 1, test specimen tooling one, flow sensor 1 pass sequentially through pipeline series connection closed loop and form；The test specimen work
It fills a both ends and is parallel with differential pressure pickup 1；Second impulse circuit at least by fuel tank, constant displacement pump 1, check valve 1,
Accumulator 11, band table pressure reducing valve 12, high frequency sound ratio throttling unit 2 21, test specimen tooling two, flow sensor 2 27 successively lead to
Pipeline series connection closed loop is crossed to form；Two both ends of test specimen tooling are parallel with differential pressure pickup 2 24；It further include for measuring accumulation of energy
The pressure sensor 1 of 11 pressure of device；The constant displacement pump 1, high frequency sound ratio throttling unit 1, flow sensor 1,
Differential pressure pickup 1, high frequency sound ratio throttling unit 2 21, flow sensor 2 27, differential pressure pickup 2 24, pressure sensing
Device 1 is electrically connected with the controller respectively.
Due to above structure, fuel tank is for storing hydraulic oil；Constant displacement pump 1 extracts hydraulic oil out of fuel tank, by unidirectional
Valve 1 is spare to accumulator 11；Check valve 1 prevents hydraulic oil from flowing back；Accumulator 11 is used for hydraulic oil reservoir energy；Work as pressure sensing
When device 1 measures 11 hydraulic oil reservoir of accumulator energy deficiency, information passes to controller, and controller controls constant displacement pump 1 and works,
Hydraulic oil is supplemented for accumulator 11, test not can be carried out at this time, needs to wait for pressure sensor 1 and measures 11 hydraulic oil of accumulator
It meets the requirements；For but directly providing hydraulic oil with constant displacement pump 1 compared to no 11 energy storage of accumulator, the present apparatus can reduce fixed
Amount one 2 driving powers of pump；Hydraulic oil in accumulator 11 passes through band table pressure reducing valve 12 and arrives high frequency sound ratio throttling unit 1,
During the output of 11 flow of accumulator, internal pressure constantly declines, and stablizes the hydraulic fluid pressure provided with table pressure reducing valve 12 defeated
It is sent to high frequency sound ratio throttling unit 1；High frequency sound ratio throttling unit 1 is for adjusting hydraulic oil to test specimen tooling one
Flow and pressure difference；Equipped with DN03 ~ 10 by test specimen in test specimen tooling one；Flow sensor 1 passes through the quilt of DN03 ~ 10 for acquiring
The flow information of test specimen, differential pressure pickup 1 for acquiring pressure drop information of DN03 ~ 10 by test specimen two ends, flow information and
Pressure drop information passes to controller, and controller controls high frequency sound ratio throttling unit 1, accurately to be adjusted to test specimen tooling
One flow and pressure drop；In short duration impact flow test, based on the pressure drop under 25 metered flows
Impact test pressure make to be met certain release by the relationship of the pressure difference of test specimen two ends and time by adjusting hydraulic oil supply
Put characteristic curve；After completing 100 Secondary Shocks flow tests by test specimen male connector to female direction, then opposite direction carries out 100 Secondary Shocks
Flow test.After impact cycle, whether visual inspection has damage by the appearance of test specimen and sealing element, will be placed on test specimen by test specimen
In tooling one, the pressure drop test of product is carried out；In pressure drop test, flow is adjusted to be led to by the metered flow of test specimen
The information that over-voltage gap sensor 1 is fed back, observes and records pressure drop, experimental enviroment numerical value, using pressure drop as subject
Pressure drop under part metered flow；In long duration impact flow test, it will be adjusted to by the flow of test specimen by test specimen
5 times of metered flows, to by the carry out flow attack of test specimen.After male connector completes 100 Secondary Shocks flow tests to female direction, then
Opposite direction carries out 100 Secondary Shocks flow tests.After impact cycle, whether visual inspection is damaged by the appearance of test specimen and sealing element
It is bad, by being placed in test specimen tooling one by test specimen, carry out the pressure drop test of product；Hydraulic oil passes through flow sensor 1
Afterwards, it is finally returned to fuel tank, constitutes the first impulse circuit；Second impulse circuit is identical as the first impulse circuit principle, from band table
Pressure reducing valve 12 starts, and the first impulse circuit and the second impulse circuit just separate；Equipped with DN12 ~ 16 by test specimen in test specimen tooling two,
Because DN03 ~ 10 are different by test specimen metered flow with DN12 ~ 16 by test specimen, distinguish, controlled convenient for flow and pressure drop.Control
Device processed cannot control high frequency sound ratio throttling unit 1 and high frequency sound ratio throttling unit 2 21 simultaneously, have interlocking.Accumulation of energy
Device 11 can be one or two or more, but at least meet maximum diameter The hydraulic oil needed for test specimen.
Further, the pipeline between the constant displacement pump 1 and check valve 1 is equipped with branch pipeline one；The branch pipeline
One is equipped with electromagnetic relief valve 4, and leads to fuel tank；Electromagnetic relief valve 4 is electrically connected with the controller.
Due to above structure, when pressure sensor 1 measures 11 hydraulic oil reservoir of accumulator energy deficiency, information is passed to
Controller, controller control constant displacement pump 1 and work, and supplement hydraulic oil for accumulator 11, electromagnetic relief valve 4 can be to avoid constant displacement pump
One 2 are transported to the hypertonia of accumulator 11, guarantee the safety of equipment；When pressure sensor 1 measures 11 hydraulic oil of accumulator
When energy storage is enough, electromagnetic relief valve 4 is fully opened, and hydraulic oil directly returns to fuel tank from constant displacement pump 1 through electromagnetic relief valve 4,
One 2 frequent start-stop of constant displacement pump is avoided, the service life of constant displacement pump 1 is improved；Since electromagnetic relief valve 4 fully opens, hydraulic oil
Fuel tank is returned to from constant displacement pump 1 through electromagnetic relief valve 4 without resistance, reaches energy-efficient purpose.
Further, string has service valve between the accumulator 11 and check valve 1；The accumulator 11 and service valve it
Between pipeline be equipped with branch pipeline two；The branch pipeline two is equipped with hand-operated valve one, and leads to fuel tank；One both ends of hand-operated valve
It is parallel with overflow valve one；The service valve, hand-operated valve one and overflow valve one constitute the safe valve group 8 of accumulator.
Due to above structure, when needing to overhaul accumulator 11, service valve is closed, pipeline is disconnected；Usually service valve is
Normally opened, hydraulic oil is from check valve 1 through service valve to accumulator 11；Hand-operated valve one is used for manual draining, can make accumulator
Hydraulic oil in 11 lets out oil return box from hand-operated valve one completely；Overflow valve one avoids 11 pressure of accumulator to protect accumulator 11
It is excessively high.
Further, pressure gauge 1 is equipped between the hand-operated valve one and accumulator 11.
Due to above structure, pressure gauge 1 can observe the pressure value of accumulator 11 instantly in equipment in real time.
Further, one 16 both ends of differential pressure pickup pass through manual ball valve 1 respectively and manual ball valve 2 17 is in parallel
At one both ends of test specimen tooling；2 24 both ends of differential pressure pickup pass through manual ball valve 3 23 respectively and manual ball valve 4 25 is in parallel
At two both ends of test specimen tooling.
Due to above structure, when needing replacing differential pressure pickup 1, manual ball valve 1 and manual ball is turned off manually
Valve 2 17, avoids hydraulic fluid leak；When needing replacing differential pressure pickup 2 24, manual ball valve 3 23 and manual ball is turned off manually
Valve 4 25, avoids hydraulic fluid leak.
Further, one 19 both ends of flow sensor are gone here and there respectively threeway manual ball valve 1 and threeway manual ball valve
2 20；Pipeline is connected between the threeway manual ball valve 1 and threeway manual ball valve 2 20；2 27 liang of the flow sensor
String has threeway manual ball valve 3 26 and threeway manual ball valve 4 28 respectively at end；The threeway manual ball valve 3 26 and the manual ball of threeway
Pipeline is connected between valve 4 28.
Due to above structure, in doing short duration impact flow test, highest can be more than under 25 metered flows
Pressure drop, hydraulic fluid flow rate is excessive at this time, by threeway manual ball valve 1 and threeway manual ball valve 2 20, threeway manual ball valve three
26 and threeway manual ball valve 4 28 change hydraulic oil flow direction, so that hydraulic oil is flowed through threeway manual ball valve 1 and threeway manual ball valve
The pipeline connected between the pipeline or threeway manual ball valve 3 26 and threeway manual ball valve 4 28 connected between 2 20, effective protection flow
Sensor 1 or flow sensor 2 27.
Further, pressure sensor two is equipped between the high frequency sound ratio throttling unit 1 and test specimen tooling one
14；Pressure sensor 3 22 is equipped between the high frequency sound ratio throttling unit 2 21 and test specimen tooling two；The pressure sensing
Device 2 14, pressure sensor 3 22 and controller electrical connection.
Due to above structure, controller can be equipped with peripheral display device, pressure sensor 2 14 and pressure sensor 3 22
The pressure information real-time delivery of acquisition is shown to controller, controller control peripheral display device.
Further, first impulse circuit and the second impulse circuit are respectively equipped with filter 1 in fuel tank in-out end
With filter 2 48；Filter 36 and filter 47 are successively installed between the check valve 1 and accumulator 11.
Due to above structure, it is equipped with filter 1 in fuel tank inlet side, filtering enters the impurity of pipeline；DN03 ~ 10 are by test specimen
With DN12 ~ 16 by test specimen in replacement process, impurity may be introduced, fuel tank outlet be equipped with filter 2 48, filtering enter
The impurity of fuel tank；Filter 36 is coarse filtration, and filter 47 is thin filtering, and hydraulic oil is pure in guarantee follow-up equipment.
It further, further include cooling circuit；The cooling circuit is at least by fuel tank, constant displacement pump 2 29, air cooler 32
Pipeline series connection closed loop is passed sequentially through to form；Pipeline between the constant displacement pump 2 29 and air cooler 32 is equipped with branch pipeline three；
The branch pipeline three is equipped with overflow valve 2 31, and leads to fuel tank；Filter five is equipped between the fuel tank and constant displacement pump 2 29
33；The constant displacement pump 2 29, air cooler 32 and controller electrical connection；The fuel tank is equipped with bimetallic thermometer 44, liquid level
Switch 45, liquidometer 46 and air cleaner 47；The bimetallic thermometer 44, liquid-level switch 45 and controller electrical connection.
Due to above structure, air cooler 32 carries out circulation temperature lowering to the hydraulic oil in fuel tank；Overflow valve 2 31 prevents cold
But the hypertonia in circuit；The filtering of filter 5 33 enters the impurity of pipeline；Bimetallic thermometer 44 is for measuring liquid in fuel tank
Pressure oil temperature, when the temperature is excessively high, controller control cooling circuit work；Liquidometer 46 is high for measuring hydraulic oil in fuel tank
Degree；When hydraulic oil excessive height in fuel tank or it is too low when, controller control 45 cut-off equipment of liquid-level switch operation；Fuel tank and atmosphere
Connection is equipped with air cleaner 47, crosses the impurity in air filtering.
It further, further include sealing leak test oil circuit；The sealing leak test oil circuit is at least by fuel tank, constant displacement pump
3 41, check valve 2 40, manual needle valve 35, test specimen tooling 3 38, measuring cup 39 are connected in series；The check valve 2 40 and manual needle
Pipeline between valve 35 is equipped with branch pipeline four；The branch pipeline four is equipped with overflow valve 3 34, and leads to fuel tank；It is described manual
Pipeline between needle-valve 35 and test specimen tooling 3 38 is equipped with pressure gauge 2 36 and pressure sensor 4 37；The fuel tank and quantitative
It pumps and is equipped with filter 6 43 between 3 41；The constant displacement pump 3 41, pressure sensor 4 37 and controller electrical connection.
Due to above structure, in sealing test test, hydraulic oil is sucked out and is pressurizeed from fuel tank by constant displacement pump 3 41,
Sealing leak test oil circuit pressure is adjusted to the pressure needed for test specimen leakage test by overflow valve 3 34, pressure is stablized
Afterwards, manual needle valve 35 is closed, observes whether pressure drop in 30min is greater than by pressure gauge 36, pressure sensor 37
0.2Mpa judges whether connector leakage test is qualified；In leak-testing test, constant displacement pump 3 41 inhales hydraulic oil from fuel tank
It out and pressurizes, is adjusted sealing leak test oil circuit pressure to the pressure needed for test specimen leakage test by overflow valve 3 34
Power after pressure is stablized, starts timing, after 15min, measuring cup is put into tube outlet, after measuring cup places, starts second and counts
When, after 30min, measuring cup volume change value is read, it is (single to calculate leakage rate of each model subject part under rated pressure state
Position: mL/s), the leakage rate that test measures is compared with the specified leakage rate of product, judges whether product leakage amount is qualified.Test specimen work
Fill one, test specimen tooling two, test specimen tooling 3 38 is removably connected on pipeline, on pipe interface have compensator, make pipeline axis
There are certain adjusting, test specimen tooling one, test specimen tooling two, 3 38 one end aperture of test specimen tooling and pipe interface aperture one to length
It causes, other end aperture is consistent with by test specimen aperture, and both ends aperture reduces the pressure loss by conical surface transition.
The beneficial effects of the utility model are:
1. completing my company DN03~DN16 the utility model discloses a kind of aerofluid self-sealing connector testing stand
It is six kinds of latus rectum connector short durations impact flow tests, long duration impact flow test, pressure drop experimental test, close
Leak test is sealed, the problem of whether the technical parameter performance of connector meets design requirement is detected, and the drive of constant displacement pump can be reduced
Dynamic power, reliable operation, response are rapid, easy to operate.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model by test specimen, test specimen tooling, pipe interface schematic diagram；
In attached drawing: 2- constant displacement pump one, 29- constant displacement pump two, 41- constant displacement pump three, 5- check valve one, 40- check valve two, 11-
Accumulator, 12- band table pressure reducing valve, 13- high frequency sound ratio throttling unit one, 21- high frequency sound ratio throttling unit two, 19- flow
Sensor one, 27- flow sensor two, 16- differential pressure pickup one, 24- differential pressure pickup two, 4- electromagnetic relief valve, 8- accumulation of energy
The safe valve group of device, 9- pressure gauge one, 36- pressure gauge two, 15- manual ball valve one, 17- manual ball valve two, 23- manual ball valve three,
25- manual ball valve four, 18- threeway manual ball valve one, 20- threeway manual ball valve two, 26- threeway manual ball valve three, 28- threeway hand
Dynamic ball valve four, 10- pressure sensor one, 14- pressure sensor two, 22- pressure sensor three, 37- pressure sensor four, 1- mistake
Filter one, 48- filter two, 6- filter three, 7- filter four, 33- filter five, 43- filter six, 32- air cooler,
31- overflow valve two, 34- overflow valve three, 44- bimetallic thermometer, 45- liquid-level switch, 46- liquidometer, 47- air cleaner,
35- manual needle valve, 38- test specimen tooling three, 39- measuring cup.
Specific embodiment
With reference to the accompanying drawing with specific embodiment, the utility model is further described, but the utility model
It is not limited to following embodiment.
Embodiment one:
See attached drawing 1 ~ 2.A kind of aerofluid self-sealing connector testing stand, including controller, the first impulse circuit and
Two impulse circuits；First impulse circuit is at least depressurized by fuel tank, constant displacement pump 1, check valve 1, accumulator 11, band table
Valve 12, high frequency sound ratio throttling unit 1, test specimen tooling one, flow sensor 1 pass sequentially through pipeline series connection closed loop and
At；One both ends of test specimen tooling are parallel with differential pressure pickup 1；Second impulse circuit is at least by fuel tank, constant displacement pump one
2, check valve 1, accumulator 11, band table pressure reducing valve 12, high frequency sound ratio throttling unit 2 21, test specimen tooling two, flow sensing
Device 2 27 passes sequentially through pipeline series connection closed loop and forms；Two both ends of test specimen tooling are parallel with differential pressure pickup 2 24；Further include
For measuring the pressure sensor 1 of 11 pressure of accumulator；The constant displacement pump 1, high frequency sound ratio throttling unit 1, stream
Quantity sensor 1, differential pressure pickup 1, high frequency sound ratio throttling unit 2 21, flow sensor 2 27, differential pressure pickup
2 24, pressure sensor 1 is electrically connected with the controller respectively.
Due to above structure, fuel tank is for storing hydraulic oil；Constant displacement pump 1 extracts hydraulic oil out of fuel tank, by unidirectional
Valve 1 is spare to accumulator 11；Check valve 1 prevents hydraulic oil from flowing back；Accumulator 11 is used for hydraulic oil reservoir energy；Work as pressure sensing
When device 1 measures 11 hydraulic oil reservoir of accumulator energy deficiency, information passes to controller, and controller controls constant displacement pump 1 and works,
Hydraulic oil is supplemented for accumulator 11, test not can be carried out at this time, needs to wait for pressure sensor 1 and measures 11 hydraulic oil of accumulator
It meets the requirements；For but directly providing hydraulic oil with constant displacement pump 1 compared to no 11 energy storage of accumulator, the present apparatus can reduce fixed
Amount one 2 driving powers of pump；Hydraulic oil in accumulator 11 passes through band table pressure reducing valve 12 and arrives high frequency sound ratio throttling unit 1,
During the output of 11 flow of accumulator, internal pressure constantly declines, and stablizes the hydraulic fluid pressure provided with table pressure reducing valve 12 defeated
It is sent to high frequency sound ratio throttling unit 1；High frequency sound ratio throttling unit 1 is for adjusting hydraulic oil to test specimen tooling one
Flow and pressure difference；Equipped with DN03 ~ 10 by test specimen in test specimen tooling one；Flow sensor 1 passes through the quilt of DN03 ~ 10 for acquiring
The flow information of test specimen, differential pressure pickup 1 for acquiring pressure drop information of DN03 ~ 10 by test specimen two ends, flow information and
Pressure drop information passes to controller, and controller controls high frequency sound ratio throttling unit 1, accurately to be adjusted to test specimen tooling
One flow and pressure drop；In short duration impact flow test, based on the pressure drop under 25 metered flows
Impact test pressure make to be met certain release by the relationship of the pressure difference of test specimen two ends and time by adjusting hydraulic oil supply
Put characteristic curve；After completing 100 Secondary Shocks flow tests by test specimen male connector to female direction, then opposite direction carries out 100 Secondary Shocks
Flow test.After impact cycle, whether visual inspection has damage by the appearance of test specimen and sealing element, will be placed on test specimen by test specimen
In tooling one, the pressure drop test of product is carried out；In pressure drop test, flow is adjusted to be led to by the metered flow of test specimen
The information that over-voltage gap sensor 1 is fed back, observes and records pressure drop, experimental enviroment numerical value, using pressure drop as subject
Pressure drop under part metered flow；In long duration impact flow test, it will be adjusted to by the flow of test specimen by test specimen
5 times of metered flows, to by the carry out flow attack of test specimen.After male connector completes 100 Secondary Shocks flow tests to female direction, then
Opposite direction carries out 100 Secondary Shocks flow tests.After impact cycle, whether visual inspection is damaged by the appearance of test specimen and sealing element
It is bad, by being placed in test specimen tooling one by test specimen, carry out the pressure drop test of product；Hydraulic oil passes through flow sensor 1
Afterwards, it is finally returned to fuel tank, constitutes the first impulse circuit；Second impulse circuit is identical as the first impulse circuit principle, from band table
Pressure reducing valve 12 starts, and the first impulse circuit and the second impulse circuit just separate；Equipped with DN12 ~ 16 by test specimen in test specimen tooling two,
Because DN03 ~ 10 are different by test specimen metered flow with DN12 ~ 16 by test specimen, distinguish, controlled convenient for flow and pressure drop.Control
Device processed cannot control high frequency sound ratio throttling unit 1 and high frequency sound ratio throttling unit 2 21 simultaneously, have interlocking.Accumulation of energy
Device 11 can be one or two or more, but at least meet maximum diameter The hydraulic oil needed for test specimen.
Embodiment two:
See attached drawing 1 ~ 2.On the basis of example 1, the pipeline between the constant displacement pump 1 and check valve 1 is equipped with
Branch pipeline one；The branch pipeline one is equipped with electromagnetic relief valve 4, and leads to fuel tank；Electromagnetic relief valve 4 is electrically connected with the controller.
Due to above structure, when pressure sensor 1 measures 11 hydraulic oil reservoir of accumulator energy deficiency, information is passed to
Controller, controller control constant displacement pump 1 and work, and supplement hydraulic oil for accumulator 11, electromagnetic relief valve 4 can be to avoid constant displacement pump
One 2 are transported to the hypertonia of accumulator 11, guarantee the safety of equipment；When pressure sensor 1 measures 11 hydraulic oil of accumulator
When energy storage is enough, electromagnetic relief valve 4 is fully opened, and hydraulic oil directly returns to fuel tank from constant displacement pump 1 through electromagnetic relief valve 4,
One 2 frequent start-stop of constant displacement pump is avoided, the service life of constant displacement pump 1 is improved；Since electromagnetic relief valve 4 fully opens, hydraulic oil
Fuel tank is returned to from constant displacement pump 1 through electromagnetic relief valve 4 without resistance, reaches energy-efficient purpose.
String has service valve between the accumulator 11 and check valve 1；Pipeline between the accumulator 11 and service valve
It is equipped with branch pipeline two；The branch pipeline two is equipped with hand-operated valve one, and leads to fuel tank；One both ends of hand-operated valve are parallel with excessive
Flow valve one；The service valve, hand-operated valve one and overflow valve one constitute the safe valve group 8 of accumulator.
Due to above structure, when needing to overhaul accumulator 11, service valve is closed, pipeline is disconnected；Usually service valve is
Normally opened, hydraulic oil is from check valve 1 through service valve to accumulator 11；Hand-operated valve one is used for manual draining, can make accumulator
Hydraulic oil in 11 lets out oil return box from hand-operated valve one completely；Overflow valve one avoids 11 pressure of accumulator to protect accumulator 11
It is excessively high.
Pressure gauge 1 is equipped between the hand-operated valve one and accumulator 11.Due to above structure, pressure gauge 1 can be real
When the pressure value instantly of accumulator 11 is observed in equipment.
One 16 both ends of differential pressure pickup pass through manual ball valve 1 respectively and manual ball valve 2 17 is connected in parallel on test specimen work
Fill a both ends；2 24 both ends of differential pressure pickup pass through manual ball valve 3 23 respectively and manual ball valve 4 25 is connected in parallel on test specimen work
Fill two both ends.
Due to above structure, when needing replacing differential pressure pickup 1, manual ball valve 1 and manual ball is turned off manually
Valve 2 17, avoids hydraulic fluid leak；When needing replacing differential pressure pickup 2 24, manual ball valve 3 23 and manual ball is turned off manually
Valve 4 25, avoids hydraulic fluid leak.
One 19 both ends of flow sensor are gone here and there respectively threeway manual ball valve 1 and threeway manual ball valve 2 20；It is described
Pipeline is connected between threeway manual ball valve 1 and threeway manual ball valve 2 20；2 27 both ends of flow sensor are gone here and there respectively to be had
Threeway manual ball valve 3 26 and threeway manual ball valve 4 28；Between the threeway manual ball valve 3 26 and threeway manual ball valve 4 28
It is connected with pipeline.
Due to above structure, in doing short duration impact flow test, highest can be more than under 25 metered flows
Pressure drop, hydraulic fluid flow rate is excessive at this time, by threeway manual ball valve 1 and threeway manual ball valve 2 20, threeway manual ball valve three
26 and threeway manual ball valve 4 28 change hydraulic oil flow direction, so that hydraulic oil is flowed through threeway manual ball valve 1 and threeway manual ball valve
The pipeline connected between the pipeline or threeway manual ball valve 3 26 and threeway manual ball valve 4 28 connected between 2 20, effective protection flow
Sensor 1 or flow sensor 2 27.
Pressure sensor 2 14 is equipped between the high frequency sound ratio throttling unit 1 and test specimen tooling one；The high frequency
It rings and is equipped with pressure sensor 3 22 between ratio throttling unit 2 21 and test specimen tooling two；The pressure sensor 2 14, pressure
Sensor 3 22 and controller electrical connection.
Due to above structure, controller can be equipped with peripheral display device, pressure sensor 2 14 and pressure sensor 3 22
The pressure information real-time delivery of acquisition is shown to controller, controller control peripheral display device.
First impulse circuit and the second impulse circuit are respectively equipped with filter 1 and filter two in fuel tank in-out end
48；Filter 36 and filter 47 are successively installed between the check valve 1 and accumulator 11.
Due to above structure, it is equipped with filter 1 in fuel tank inlet side, filtering enters the impurity of pipeline；DN03 ~ 10 are by test specimen
With DN12 ~ 16 by test specimen in replacement process, impurity may be introduced, fuel tank outlet be equipped with filter 2 48, filtering enter
The impurity of fuel tank；Filter 36 is coarse filtration, and filter 47 is thin filtering, and hydraulic oil is pure in guarantee follow-up equipment.
Embodiment three:
See attached drawing 1 ~ 2.It on the basis of example 2, further include cooling circuit；The cooling circuit is at least by fuel tank, fixed
Amount pump 2 29, air cooler 32 pass sequentially through pipeline series connection closed loop and form；Between the constant displacement pump 2 29 and air cooler 32
Pipeline is equipped with branch pipeline three；The branch pipeline three is equipped with overflow valve 2 31, and leads to fuel tank；The fuel tank and constant displacement pump two
Filter 5 33 is equipped between 29；The constant displacement pump 2 29, air cooler 32 and controller electrical connection；The fuel tank is equipped with double
Metallic thermometer 44, liquid-level switch 45, liquidometer 46 and air cleaner 47；The bimetallic thermometer 44, liquid-level switch 45
It is electrically connected with controller.
Due to above structure, air cooler 32 carries out circulation temperature lowering to the hydraulic oil in fuel tank；Overflow valve 2 31 prevents cold
But the hypertonia in circuit；The filtering of filter 5 33 enters the impurity of pipeline；Bimetallic thermometer 44 is for measuring liquid in fuel tank
Pressure oil temperature, when the temperature is excessively high, controller control cooling circuit work；Liquidometer 46 is high for measuring hydraulic oil in fuel tank
Degree；When hydraulic oil excessive height in fuel tank or it is too low when, controller control 45 cut-off equipment of liquid-level switch operation；Fuel tank and atmosphere
Connection is equipped with air cleaner 47, crosses the impurity in air filtering.
It further include sealing leak test oil circuit；Sealing leak test oil circuit is at least by fuel tank, constant displacement pump 3 41, unidirectional
Valve 2 40, manual needle valve 35, test specimen tooling 3 38, measuring cup 39 are connected in series；Between the check valve 2 40 and manual needle valve 35
Pipeline be equipped with branch pipeline four；The branch pipeline four is equipped with overflow valve 3 34, and leads to fuel tank；35 He of manual needle valve
Pipeline between test specimen tooling 3 38 is equipped with pressure gauge 2 36 and pressure sensor 4 37；The fuel tank and constant displacement pump 3 41 it
Between be equipped with filter 6 43；The constant displacement pump 3 41, pressure sensor 4 37 and controller electrical connection.
Due to above structure, in sealing test test, hydraulic oil is sucked out and is pressurizeed from fuel tank by constant displacement pump 3 41,
Sealing leak test oil circuit pressure is adjusted to the pressure needed for test specimen leakage test by overflow valve 3 34, pressure is stablized
Afterwards, manual needle valve 35 is closed, observes whether pressure drop in 30min is greater than by pressure gauge 36, pressure sensor 37
0.2Mpa judges whether connector leakage test is qualified；In leak-testing test, constant displacement pump 3 41 inhales hydraulic oil from fuel tank
It out and pressurizes, is adjusted sealing leak test oil circuit pressure to the pressure needed for test specimen leakage test by overflow valve 3 34
Power after pressure is stablized, starts timing, after 15min, measuring cup is put into tube outlet, after measuring cup places, starts second and counts
When, after 30min, measuring cup volume change value is read, it is (single to calculate leakage rate of each model subject part under rated pressure state
Position: mL/s), the leakage rate that test measures is compared with the specified leakage rate of product, judges whether product leakage amount is qualified.Test specimen work
Fill one, test specimen tooling two, test specimen tooling 3 38 is removably connected on pipeline, on pipe interface have compensator, make pipeline axis
There is certain adjusting to length, test specimen tooling one, test specimen tooling two, 3 38 one end aperture pipe interface aperture of test specimen tooling are consistent,
Other end aperture is consistent with by test specimen aperture, and both ends aperture reduces the pressure loss by conical surface transition.
The constant displacement pump, check valve, accumulator, band table pressure reducing valve, high frequency sound ratio throttling unit, flow of the utility model pass
Sensor, differential pressure pickup, electromagnetic relief valve, pressure gauge, manual ball valve, threeway manual ball valve, pressure sensor, filter, wind
Cooler, overflow valve, bimetallic thermometer, liquid-level switch, liquidometer, air cleaner, manual needle valve, the city measuring cup Deng Junke
That buys on field arrives, and principle repeats no more.Such as accumulator selects model NXQ-AB-63/31.5-L-Y, controller is selected
PLC etc..
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported
Used in other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of aerofluid self-sealing connector testing stand, it is characterised in that: including controller, the first impulse circuit and second
Impulse circuit；First impulse circuit is at least subtracted by fuel tank, constant displacement pump one (2), check valve one (5), accumulator (11), band table
Pressure valve (12), high frequency sound ratio throttling unit one (13), test specimen tooling one, flow sensor one (19) pass sequentially through pipeline series connection
Closed loop forms；One both ends of test specimen tooling are parallel with differential pressure pickup one (16)；Second impulse circuit at least by fuel tank,
Constant displacement pump one (2), check valve one (5), accumulator (11), band table pressure reducing valve (12), high frequency sound ratio throttling unit two (21), examination
Part tooling two, flow sensor two (27) pass sequentially through pipeline series connection closed loop and form；Two both ends of test specimen tooling are parallel with pressure
Gap sensor two (24)；It further include the pressure sensor one (10) for measuring accumulator (11) pressure；The constant displacement pump one
(2), high frequency sound ratio throttling unit one (13), flow sensor one (19), differential pressure pickup one (16), the throttling of high frequency sound ratio
Unit two (21), flow sensor two (27), differential pressure pickup two (24), pressure sensor one (10) are electrically connected with controller respectively
It connects.
2. a kind of aerofluid self-sealing connector testing stand according to claim 1, it is characterised in that: the constant displacement pump
Pipeline between one (2) and check valve one (5) is equipped with branch pipeline one；The branch pipeline one is equipped with electromagnetic relief valve (4), and
Lead to fuel tank；Electromagnetic relief valve (4) is electrically connected with the controller.
3. a kind of aerofluid self-sealing connector testing stand according to claim 1, it is characterised in that: the accumulator
(11) string has service valve between check valve one (5)；Pipeline between the accumulator (11) and service valve is equipped with branch pipeline
Two；The branch pipeline two is equipped with hand-operated valve one, and leads to fuel tank；One both ends of hand-operated valve are parallel with overflow valve one；It is described
Service valve, hand-operated valve one and overflow valve one constitute the safe valve group of accumulator (8).
4. a kind of aerofluid self-sealing connector testing stand according to claim 3, it is characterised in that: the hand-operated valve
Pressure gauge one (9) is equipped between one and accumulator (11).
5. a kind of aerofluid self-sealing connector testing stand according to claim 1, it is characterised in that: the pressure difference passes
Sensor one (16) both ends pass through manual ball valve one (15) respectively and manual ball valve two (17) is connected in parallel on one both ends of test specimen tooling；It is described
Differential pressure pickup two (24) both ends pass through manual ball valve three (23) respectively and manual ball valve four (25) is connected in parallel on two liang of test specimen tooling
End.
6. a kind of aerofluid self-sealing connector testing stand according to claim 1, it is characterised in that: the flow passes
Sensor one (19) both ends are gone here and there respectively threeway manual ball valve one (18) and threeway manual ball valve two (20)；The threeway manual ball valve
Pipeline is connected between one (18) and threeway manual ball valve two (20)；Flow sensor two (27) both ends are gone here and there respectively threeway hand
Dynamic ball valve three (26) and threeway manual ball valve four (28)；The threeway manual ball valve three (26) and threeway manual ball valve four (28) it
Between be connected with pipeline.
7. a kind of aerofluid self-sealing connector testing stand according to claim 1, it is characterised in that: the high frequency sound
Pressure sensor two (14) is equipped between ratio throttling unit one (13) and test specimen tooling one；The high frequency sound ratio throttling unit
Pressure sensor three (22) is equipped between two (21) and test specimen tooling two；The pressure sensor two (14), pressure sensor three
(22) it is electrically connected with controller.
8. a kind of aerofluid self-sealing connector testing stand according to claim 1, it is characterised in that: first punching
It hits circuit and the second impulse circuit and is respectively equipped with filter one (1) and filter two (48) in fuel tank in-out end；The check valve
Filter three (6) and filter four (7) are successively installed between one (5) and accumulator (11).
9. a kind of aerofluid self-sealing connector testing stand according to claim 1, it is characterised in that: further include cooling
Circuit；The cooling circuit at least by fuel tank, constant displacement pump two (29), air cooler (32) pass sequentially through pipeline series connection closed loop and
At；Pipeline between the constant displacement pump two (29) and air cooler (32) is equipped with branch pipeline three；The branch pipeline three is equipped with
Overflow valve two (31), and lead to fuel tank；Filter five (33) is equipped between the fuel tank and constant displacement pump two (29)；The constant displacement pump
Two (29), air cooler (32) and controller electrical connection；The fuel tank is equipped with bimetallic thermometer (44), liquid-level switch
(45), liquidometer (46) and air cleaner (47)；The bimetallic thermometer (44), liquid-level switch (45) and controller are electrically connected
It connects.
10. a kind of aerofluid self-sealing connector testing stand described according to claim 1 ~ one of 9, it is characterised in that: also
Oil circuit is tested including sealing leak；The sealing leak test oil circuit is at least by fuel tank, constant displacement pump three (41), check valve two
(40), manual needle valve (35), test specimen tooling three (38), measuring cup (39) are connected in series；The check valve two (40) and manual needle valve
(35) pipeline between is equipped with branch pipeline four；The branch pipeline four is equipped with overflow valve three (34), and leads to fuel tank；The hand
Pipeline between dynamic needle-valve (35) and test specimen tooling three (38) is equipped with pressure gauge two (36) and pressure sensor four (37)；It is described
Filter six (43) is equipped between fuel tank and constant displacement pump three (41)；The constant displacement pump three (41), pressure sensor four (37) and control
Device electrical connection processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920344669.0U CN209356188U (en) | 2019-03-19 | 2019-03-19 | A kind of aerofluid self-sealing connector testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920344669.0U CN209356188U (en) | 2019-03-19 | 2019-03-19 | A kind of aerofluid self-sealing connector testing stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209356188U true CN209356188U (en) | 2019-09-06 |
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ID=67804267
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920344669.0U Expired - Fee Related CN209356188U (en) | 2019-03-19 | 2019-03-19 | A kind of aerofluid self-sealing connector testing stand |
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| Country | Link |
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| CN (1) | CN209356188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752177A (en) * | 2019-03-19 | 2019-05-14 | 成都震风航空技术有限公司 | A kind of aerofluid self-sealing connector testing stand |
-
2019
- 2019-03-19 CN CN201920344669.0U patent/CN209356188U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752177A (en) * | 2019-03-19 | 2019-05-14 | 成都震风航空技术有限公司 | A kind of aerofluid self-sealing connector testing stand |
| CN109752177B (en) * | 2019-03-19 | 2024-02-13 | 成都震风航空技术有限公司 | Aviation fluid self-sealing connector test bed |
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Granted publication date: 20190906 |