CN106644250A - Portable device for air pressure measurement - Google Patents
Portable device for air pressure measurement Download PDFInfo
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- CN106644250A CN106644250A CN201611150647.8A CN201611150647A CN106644250A CN 106644250 A CN106644250 A CN 106644250A CN 201611150647 A CN201611150647 A CN 201611150647A CN 106644250 A CN106644250 A CN 106644250A
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- pressure
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- flexible pipe
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention provides a portable device for air pressure measurement, and belongs to the technical field of aero-engines. The device mainly comprises a box, a pressure reducer, a pressure gauge, an air filter, a throttle valve, a gas source tank and various connecting hoses. The device is simple in structure and portable, can be used separately, meets the requirements for mobility and portability, and thus is strong in operability and practicability. The device for measuring the control parameter Pk* of an oil pump adjustor in regular maintenance of the external field of an aero-engine can be used for accurately measuring the practical Pk* value controlled by the oil pump adjustor, comparing the measured value with the recorded value of an engine resume, and determining whether to adjust the Pk* pressure controlled by the oil pump adjustor according to the comparison difference, thereby ensuring that the pressure value of air compressed by a high pressure compressor for the aero-engine is within a permissible deviation range, ensuring fuel supply to the engine, and ensuring that the aero-engine runs stably, reliably and safely.
Description
Technical field
The present invention relates to a kind of device for pressure measurement, more particularly to a kind of for air after aero-engine high-pressure compressor
Tonometric mancarried device, belongs to aero-engine technology field.
Background technology
In the course of work of aero-engine, air pressure after the parameter high-pressure compressor that wherein fuel pump governor is controlled
(Pk *) may change.Pk *Change will necessarily affect the change of engine maximum fuel quantity delivered, so as to cause engine
Rotor maximum speed and the change of turbine inlet temperature, and then more serious problem be possible cause engine rotor surpass
Turn, turbine overtemperature.Therefore, must be to the ginseng of fuel pump governor (Н Р -30 К П) control in the periodic maintenance of engine outfield
Number Pk *Measure, and the parameter is adjusted according to measurement result, just can guarantee that engine normally operation and trouble free service.
At present, to parameter P of fuel pump governor controlk *The device for measuring also is used in engine running bench support, but the dress
It is dispersion fixed and arranged to put each several part, and operation is extremely inconvenient, and is formed with engine running bench support one construction, therefore, the dress
Putting cannot be used alone, cannot more move and be convenient for carrying, thus cannot meet in the periodic maintenance of engine outfield to Pk *Ginseng
The requirement that number is easily measured.
The content of the invention
The purpose of the present invention is exactly controlled in periodic maintenance for aero-engine to fuel pump governor (Н Р -30 К П)
Parameter P of systemk *Existing defect and deficiency when measuring, and design a kind of each part centralized arrangement, exclusive use, can expire
Foot measurement and operation facilitate and carry the mancarried device of also convenient air pressure measurement；It is fuel-displaced by the measurement device
The P of pump control mechanism controlk *Pressure actual value, to guarantee aero-engine high-pressure compressor after air pressure in tolerance scope
It is interior, so as to the supply for ensureing aero-engine fuel oil is met needed for the working condition of engine；And then guarantee the normal of engine
Work and safe operation.
For achieving the above object, the present invention is realized using the technical scheme being made up of following technical measures.
A kind of mancarried device of air pressure measurement of the present invention, including casing, source of the gas flexible pipe, source of the gas tank, decompression
Device, pressure gauge, air filter, first throttle valve, second throttle, three-way connection, the first quick connector, the second quick connector is supplied
Gas flexible pipe and pressure measurement flexible pipe；Described source of the gas flexible pipe one end is connected with pressure reducer one end, and its other end is connected with source of the gas tank, pressure reducer
The other end is connected by connecting tube with air filter one end, and the air filter other end is connected by connecting tube with first throttle valve one end,
The first throttle valve other end is connected by connecting tube with the one of joint of three-way connection, and three-way connection other two joint passes through
Connecting tube is connected respectively with second throttle and second quick connector one end, the second quick connector other end and air supply hose one end
Connection, described first quick connector one end is connected by connecting tube with pressure gauge, and its other end is connected with pressure measurement flexible pipe one end；Institute
State pressure reducer, pressure gauge, air filter, first throttle valve, second throttle, the first quick connector and the second quick connector to arrange
In casing, source of the gas tank is installed on outside casing；During measurement, according to parameter Pk of oil in engine pump control mechanism control*Measurement will
Ask, the air supply hose and pressure measurement flexible pipe are connected with corresponding component on engine pipelines, or by pressure measurement flexible pipe and engine tube
Corresponding component connection on road, you can carry out Pk*Measurement.
In above-mentioned technical proposal, described device for before measuring air pressure, need to seal tube two ends respectively with institute
The joint for stating the first quick connector and the second quick connector closely connects sealing；The source of the gas flexible pipe is connected with source of the gas tank, you can
The sealing of device is checked；Inspection is finished, and seal tube is released.
In above-mentioned technical proposal, parameter Pk of the oil in engine pump control mechanism control*Measurement, one is in engine
When takeoff condition is limited by oil pressure booster, now will connect the air supply hose other end of the second quick connector in device and send out
Lead to the air conduit connection of maximum pressure limiter in motivation, and connect the pressure measurement flexible pipe other end of the first quick connector and lead to
Mouth connection, the source of the gas flexible pipe other end and gas of the connection pressure reducer are connected to three on the air conduit of maximum pressure limiter
Carrying shield connects, you can to Pk*Measure.
In above-mentioned technical proposal, parameter Pk of the oil in engine pump control mechanism control*Measurement, two is in engine
Takeoff condition is, by when air pressure is limited after high-pressure compressor, the pressure measurement flexible pipe of the first quick connector now will to be connected in device
Three connecting on mouth of being connected on engine on the air conduit for leading to maximum pressure limiter of the other end, and lead on engine
The engine that air filter is connected is limited and automatically speeded up with maximum pressure on engine to the air conduit of maximum pressure limiter
Upper maximum pressure to be limited and automatically speeded up and connect mouth connection on air filter, you can to Pk*Measure.
In above-mentioned technical proposal, the source of the gas tank provides oil in engine pump control mechanism to the gas required by its working media
The gas provided in body, the source of the gas tank is nitrogen.
The mancarried device of air pressure measurement of the present invention is used to adjust oil pump in the periodic maintenance of aero-engine
Air pressure (Pk after the parameter high-pressure compressor of section device control*) basic demand that measures is：Carrying out Pk*Inspection before,
Should judge that engine is by oil in takeoff condition according to the temperature and pressure of the fuel pump governor local environment air of measurement first
Pressure booster is limited, i.e. high pressure rotating speed n2Limit；Or limited by air pressure after high-pressure compressor, i.e. Pk *Limit.According to institute
Different points of following two situations of condition are restricted to Pk*Checked：
1) when air pressure is limited after by high-pressure compressor, turned using gauge measurement engine high pressure in described device
Speed declines the pressure for leading in the air conduit of maximum pressure limiter at the moment, and this pressure is the reality of fuel pump governor control
Pk *Pressure.
2) when being limited by oil pressure booster, it is stepped up supplying air pressure by institute's inflatable body in source of the gas tank in described device
Power, and decline this device supply gas pressure of moment using gauge measurement engine high pressure rotating speed in device, this pressure is oil pump
The actual P of adjuster controlk *Pressure.
Mancarried device of the present invention is restricted the i.e. actual P of air pressure of situation for measuring above twok *Pressure
When annexation, when measurement be high-pressure compressor after air pressure limited by oil pressure booster when air pressure, now
The air that leads to maximum pressure limiter on the air supply hose other end of the second quick connector and engine will be connected in device to lead
Pipe connects, and connects three on the pressure measurement flexible pipe other end and the air conduit for leading to maximum pressure limiter of the first quick connector
Connect mouth connection, it is described connection pressure reducer the source of the gas flexible pipe other end be connected with source of the gas tank by Pk*Measure.
Mancarried device of the present invention, when measurement be high-pressure compressor after air pressure by air after high-pressure compressor
Air pressure during pressure limit, now by the other end and engine that connect the pressure measurement flexible pipe of the first quick connector in device
Lead on the air conduit of maximum pressure limiter three and connect mouth connection, and lead to the sky of maximum pressure limiter on engine
Airway limits with maximum pressure on engine and automatically speeds up maximum pressure on the engine that air filter is connected and limits and automatic
Accelerate to connect mouth connection on air filter, you can to Pk*Measure.
By the actual P of the fuel pump governor control measured by above-mentioned two situationsk *Pressure and engine log book record value
Contrasted, determine whether to adjust the P of fuel pump governor control by contrasting differencek *Pressure and its consumption is adjusted, and exchanged
P after wholek *Pressure is measured again, to guarantee Pk *Pressure adjustment amount meets the requirements.
The advantage of the mancarried device of air pressure measurement of the present invention and beneficial technique effect are as follows：
1st, it is of the present invention a kind of for air pressure (P after aero-engine high-pressure compressork *) measurement it is portable
Device, is that air pressure after the parameter high-pressure compressor of fuel pump governor control is measured in aero-engine flight-line service
There is provided equipment guarantee, its simple structure, and lightweight and portable in volume, its is operational and practical.
2nd, the mancarried device of air pressure measurement of the present invention, can accurately measure oil in engine pump control mechanism
The P of controlk *Pressure actual value, measured value is contrasted with engine log book record value；Difference is come really as obtained by contrast
The fixed P for whether adjusting fuel pump governor controlk *Pressure.
3rd, the portable pressure device of air pressure measurement of the present invention, to the P after adjustmentk *Pressure is surveyed again
Amount, to guarantee aero-engine high-pressure compressor after air pressure value adjustment after reach in desired deviation range, so as to protect
The supply of card engine fuel, and then guarantee that engine behavior is reliable and stable, normal operation.
4th, the pressure apparatus of air pressure measurement of the present invention, not only solves the periodic maintenance of aero-engine outfield
In removable to air pressure measurement device, Portable belt requirement, and overcome conventional apparatus each several part for dispersed placement, and
The extremely inconvenient pressure tester built with engine running bench support one.
Description of the drawings
The overall structure diagram of the mancarried device of Fig. 1 air pressure measurements of the present invention；
The mancarried device of Fig. 2 air pressure measurements of the present invention is using the structural representation for front making leakage check；
The mancarried device of stating of Fig. 3 embodiment of the present invention institute air pressure measurement is used to measure Pk *Limited by oil pressure booster
When structural representation, it is identical with Fig. 1 structures；
The mancarried device of air pressure measurement described in Fig. 4 embodiment of the present invention is used to measure Pk *By empty after high-pressure compressor
Structural representation during air pressure power restriction.
In figure, 1 casing, 2 source of the gas flexible pipes, 3 pressure reducers, 4 pressure gauges, 5 air filters, 6 first throttle valves, 7 second throttle,
8 three-way connections, 9 first quick connectors, 10 second quick connectors, 11 air supply hoses, 12 pressure measurement flexible pipes, maximum pressure on 13 engines
Power restriction and the mouth that connects on air filter is automatically speeded up, maximum pressure is limited and automatically speeds up air filter on 14 engines, and 15 start
Lead to the air conduit of maximum pressure limiter on machine, three on the air conduit of maximum pressure limiter are led on 16 engines
Connect mouth, 17 source of the gas tanks, 18 seal tubes.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings and with specific embodiment, but is not meant to be to this
Any restriction of invention protection domain.
Its structure of the mancarried device of air pressure measurement of the present invention is as shown in figure 1, including casing 1, source of the gas is soft
Pipe 2, source of the gas tank 17, pressure reducer 3, pressure gauge 4, air filter 5, first throttle valve 6, second throttle 7, three-way connection 8, first is fast
Connection-peg 9, the second quick connector 10, air supply hose 11, pressure measurement flexible pipe 12；The one of the one end of source of the gas flexible pipe 2 connection pressure reducer 3
End, the other end of pressure reducer 3 is connected by connecting tube with the one end of air filter 5, and the other end of air filter 5 is by connecting tube and first throttle
The one end of valve 6 connects, and the first throttle valve other end is connected by connecting tube with the one of joint of three-way connection 8, three-way connection 8 its
Two joints of remaininging are connected respectively by connecting tube with the one end of 7 and second quick connector of second throttle 10, the second quick connector 10
The other end is connected with the one end of air supply hose 11, and described one end of first quick connector 9 is connected by connecting tube with pressure gauge 4, and its is another
One end is connected with the one end of pressure measurement flexible pipe 12.The pressure reducer 3, pressure gauge 4, air filter 5, first throttle valve 6 and second throttle 7
It is arranged in casing 1, source of the gas tank 17 is installed on outside casing.During measurement, according to the parameter of oil in engine pump control mechanism control
Pk*Measurement request, the air supply hose 11 and pressure measurement flexible pipe 12 are connected with corresponding component on engine pipelines, or pressure measurement is soft
Pipe 12 is connected with corresponding component on engine pipelines, you can to Pk *Measure.
In Fig. 2, mancarried device of the present invention is being used to measure air pressure Pk *Before, needs are carried out to the close of device
Envelope checks that now, the connection of second quick connector 10 and air supply hose 11 is disengaged, the first quick connector 9 and pressure measurement flexible pipe
12 connection is disengaged, and then respectively two quick connectors is closely connected into sealing, gas with the quick connector at the two ends of seal tube 18
Source flexible pipe 2 is connected with source of the gas tank 17, you can carry out the leakage check of the device.Inspection is finished, and seal tube 18 is released；Then institute
State the first quick connector 9 to reconnect with the one end of pressure measurement flexible pipe 12, the second quick connector 10 is with the one end of air supply hose 11 again
In connection.
In Fig. 3, the air pressure after mancarried device using the air pressure measurement is used to measure high-pressure compressor
It is air pressure when being limited by oil pressure booster, now, will leads on the other end of air supply hose 11 in device and engine
The air conduit 15 of maximum pressure limiter connects, and leads to maximum pressure on the other end of pressure measurement flexible pipe 12 in device and engine
On the air conduit of force-limiting device three connect mouth 16 and connect；Can be to Pk *Measure.
In Fig. 4, the air pressure after mancarried device using the air pressure measurement is used to measure high-pressure compressor
It is by air pressure when air pressure is limited after high-pressure compressor, now, by the pressure measurement flexible pipe 12 in device and engine
Lead on the air conduit of maximum pressure limiter three and connect mouth 16 and connect；And lead to maximum pressure limiter on engine
Air conduit 15 limits with maximum pressure on engine and automatically speeds up maximum pressure on the engine that air filter 14 is connected and limits
Connect with the mouth 13 that connects automatically speeded up on air filter, you can to Pk *Measure.
Embodiment
The present embodiment is used for the mancarried device of the air pressure measurement to measure P in enginek *When, the pressure for being used
The measurement range of power table 4 should be not less than 4MPa, and measure error is not more than ± 0.01MPa, the output pressure of pressure reducer 3 should 0～
Between 1.96MPa, the gas in the source of the gas tank 17 is nitrogen, and its pressure is not more than 10MPa.
The present embodiment carries out P using the mancarried device of the air pressure measurementk *The concrete operation step of measurement is as follows：
1st, using the front leakage check to described device, as shown in Figure 2 structure connects each part
To ensure Pk *Measurement accuracy, this device must carry out airtight test using before, and airtight test concrete steps are such as
Under：
1.1 are attached in its source of the gas tank 17 with pressure for (8～10) MPa by source of the gas flexible pipe 2 in device；
1.2 couple together sealing with the first quick connector 9 and the second quick connector 10 respectively with the two ends of seal tube 18；
1.3 guarantee that second throttle 7 is closed, and first throttle valve 6 is in open mode；
1.4 smear liquid soap at each component joints；
1.5 opening source of the gas tanks 17 are switched, and the pressure that regulation pressure reducer 3 to pressure gauge 5 shows is 1.9MPa, and fertilizer is smeared in observation
Bubble-free is answered at soap lye；If any bubble, then the combination situation for having joint at bubble is checked, device re-started after troubleshooting airtight
Property check；
1.6 switches for closing source of the gas tank 17, open second throttle 7, discharge air pressure；
1.7 decompose seal tube 18, and block the first quick connector 9 and the second quick connector 10 with blanking cover, close second
Choke valve 7.
2nd, P is carried out using this devicek *Inspection
Carrying out Pk *Inspection before, first according to measurement oil pump control mechanism local environment atmospheric temperature and pressure, judge
Engine is to be limited i.e. high pressure rotating speed n by oil pressure booster in takeoff condition2Limit, or by air pressure after high-pressure compressor
Restriction is Pk *Limit；When engine takeoff state receives Pk *During restriction, Pk *Inspection carry out by the requirement of following 2.1 steps, when starting
Machine takeoff condition receives high pressure rotating speed n2During restriction, Pk *Inspection carry out by the requirement of following 2.2 steps.
2.1 is by P in takeoff condition when enginek *During restriction
A) airtight test of device is carried out by above-mentioned steps 1；
B) lead on the air conduit of maximum pressure limiter three from engine and connect the decomposition lower plug cover of mouth 16, then
As shown in Figure 4 structure connects each part, the two ends of pressure measurement flexible pipe 12 is connected respectively on engine and leads to maximum pressure limit
On the air conduit of device processed three are connected on the first quick connector 9 in mouth 16 and device；
C) start engine and carry out engine warm-up, engine is pushed into into takeoff condition, tape deck by test program
Air gauge pressure P after the high-pressure compressor that middle pressure gauge 4 showsb；
D) it is calculated as follows absolute pressure P of air after high-pressure compressorj：
Pj=Pb+Pa……………………………………………(1)
Wherein PjFor absolute pressure, PbFor air gauge pressure, PaFor atmospheric pressure；
If according to the calculated P of formula (1)jWith the P recorded in engine log bookk *Limit beyond (- 0.0294～
0.0196) during MPa, then need to Pk *Limits value is adjusted, and to the P after regulationk *Inspection is re-started, until absolute pressure Pj
With the P recorded in engine log bookk *Deviation is within the scope of ± 0.0098MPa；
E) decompose pressure measurement flexible pipe 12, that is, remove pressure measurement flexible pipe；
F) three blanking covers connected on mouth 16 led on the air conduit of maximum pressure limiter on assembling engine are restored,
And guarantee the sealing of interface.
2.2 is by high pressure rotating speed n in takeoff condition when engine2During restriction
A) airtight test of device is carried out by above-mentioned steps 1；
B) unclamp and back out and the air conduit 15 for leading to maximum pressure limiter on engine is connected on engine most
Big pressure limit and the cap nut connect on mouth 13 on air filter is automatically speeded up, maximum pressure limiter will be led on engine
Air conduit 15 limit with maximum pressure on engine and automatically speed up the mouth 13 that connects on air filter and disengage, will be sent out using blanking cover
The mouth 13 that connects that maximum pressure is limited and automatically speeded up on air filter in motivation is blocked and ensures to be sealed at this；Then as shown in Figure 3
Structure connects each part；
C) one end of air supply hose 11 is connected on engine on the air conduit 15 for leading to maximum pressure limiter, and is twisted
Tight its cap nut；
D) three on the air conduit for leading to maximum pressure limiter on engine are connected into the blanking cover on mouth 16 to back out, will
Three led on the air conduit of maximum pressure limiter on the one end of pressure measurement flexible pipe 12 connection engine are connected on mouth 16, and are tightened
Cap nut；
E) other end of air supply hose 11 and pressure measurement flexible pipe 12 is connected respectively to into the second quick connector 10 and in device
On one quick connector 9, and each hose end is carried out with fuse supplement fixation；
F) first throttle valve 6 and second throttle 7 in device is confirmed all in closed position, by the source of the gas flexible pipe
2 are attached it with the source of the gas tank 17 equipped with nitrogen pressure for (8～10) MPa；
G) start engine and carry out engine warm-up, engine is pushed into into takeoff condition by test program；
H) switch of source of the gas tank is opened；
I) it is steady to open first throttle valve 6, gradually increase the air conduit for leading to maximum pressure limiter on engine
15 supply gas pressure, records engine speed n2The air meter pressure P that pressure gauge 4 shows in engraving device when starting to reduceb；
J) switch of source of the gas tank 17, the release nitrogen pressure of Jing second throttle 7 are closed；
K) first throttle valve 6 and second throttle 7 are closed；
L) absolute pressure Pj of air after high-pressure compressor is calculated by formula (1) in above-mentioned 2.1 sections；
If m) according to the P recorded in the calculated Pj of formula (1) and engine log bookk *Limit and exceed (- 0.0294
～0.0196) MPa when, then need to Pk *Limits value is adjusted, and to the P after regulationk *Inspection is re-started, until PjWith Pk *
Deviation is within the scope of ± 0.0098MPa；
N) air supply hose 11, pressure measurement flexible pipe 12 are decomposed；
F) three blanking covers connected on mouth 16 led on the air conduit of maximum pressure limiter on assembling engine are restored
Limit with maximum pressure on engine and automatically speed up the cap nut connect on mouth 13 on air filter, and guarantee the close of interface
Feng Xing.
Note：Manometric reading is noted during first throttle valve 6 is opened, to guarantee that supply gas pressure is less than
1.96MPa。
3rd, the P of fuel pump governor controlk *Regulation
According to absolute pressure P of air after calculated high-pressure compressorjWith the fuel pump governor control of log book record
The P of systemk *Contrast difference rotating Pk *Limit adjusting screw, Pk *Limit adjusting screw rotation to turn around, fuel pump governor control
Pk *Pressure change 0.098MPa；When turning clockwise, the P of fuel pump governor controlk *Pressure increases；During rotate counterclockwise, oil pump
The P of adjuster controlk *Pressure is reduced.
The present invention can accurately measure the P of fuel pump governor (Н Р -30 К П) control by embodimentk *Pressure reality
Value, measured value is contrasted with engine log book record value.Determine whether to adjust fuel pump governor Н by contrasting difference
The P of Р -30 К П controlsk *Pressure and adjustment amount, and to the P after adjustmentk *Pressure is measured again, to guarantee Pk *Pressure is adjusted
Whole amount meets the requirements, and then ensures that the confession of engine fuel is given needed for the working condition for meeting engine, safe operation.
Claims (5)
1. a kind of mancarried device of air pressure measurement, it is characterised in that including casing (1), source of the gas flexible pipe (2), source of the gas tank
(17), pressure reducer (3), pressure gauge (4), air filter (5), first throttle valve (6), second throttle (7), three-way connection (8), the
One quick connector (9), the second quick connector (10), air supply hose (11) and pressure measurement flexible pipe (12)；Described source of the gas flexible pipe (2) one end
It is connected with pressure reducer (3), its other end is connected with source of the gas tank (17), pressure reducer (3) other end is by connecting tube and air filter (5)
One end connects, and the air filter other end is connected by connecting tube with first throttle valve (6) one end, and the first throttle valve other end is by connecting
Adapter be connected with the one of joint of three-way connection (8), three-way connection other two joint pass through connecting tube respectively with second section
Stream valve (7) and the connection of the second quick connector (10) one end, the second quick connector other end is connected with air supply hose (11) one end；Institute
State the first quick connector (9) one end to be connected with pressure measurement flexible pipe (12) one end, its other end is connected by connecting tube with pressure gauge (4)
Connect；The pressure reducer, pressure gauge, air filter, three-way connection, first throttle valve and second throttle are arranged in casing (1),
Source of the gas tank (17) is installed on casing (1) outward；During measurement, according to parameter Pk of oil in engine pump control mechanism control*Measurement request,
The air supply hose (11) and pressure measurement flexible pipe (12) are connected with corresponding component on engine pipelines, or by pressure measurement flexible pipe (12) with
Corresponding component connection on engine pipelines, i.e., to Pk*Measure.
2. the mancarried device of air pressure measurement according to claim 1, it is characterised in that described device is for surveying
Amount air pressure before, need to seal tube (18) two ends respectively with first quick connector (9) and the second quick connector (10)
Joint connection sealing；The source of the gas flexible pipe (2) is connected with source of the gas tank (17), you can the sealing of device is checked；Inspection
Look into and finish, seal tube (18) is released.
3. the mancarried device of air pressure measurement according to claim 1 and 2, it is characterised in that described in engine
Parameter Pk of fuel pump governor control*Measurement, one be engine when takeoff condition is limited by oil pressure booster, now will
Connect in device and lead to maximum pressure limiter on air supply hose (11) other end and engine of the second quick connector (10)
Air conduit (15) connects, and pressure measurement flexible pipe (12) other end for connecting the first quick connector (9) is limited with maximum pressure is led to
On the air conduit of device three connect mouth (16) connection, source of the gas flexible pipe (2) other end and source of the gas tank of connection pressure reducer (3)
(17) connect, i.e., to Pk*Measure.
4. the mancarried device of air pressure measurement according to claim 1 and 2, it is characterised in that described in engine
Parameter Pk of fuel pump governor control*Measurement, two be engine be by high-pressure compressor in takeoff condition after air pressure limit
When processed, now the other end for connecting the pressure measurement flexible pipe (12) of the first quick connector (9) in device be connected on engine and led to
On the air conduit of maximum pressure limiter three are connected on mouth (16), and lead to the air of maximum pressure limiter on engine
Conduit (15) limits with maximum pressure on engine and automatically speeds up maximum pressure on the engine that air filter (14) is connected and limits
Connect mouth (13) connection on air filter with automatically speeding up, i.e., to Pk*Measure.
5. the mancarried device of air pressure measurement according to claim 1, it is characterised in that the source of the gas tank (17) carries
For oil in engine pump control mechanism to the gas required by its working media, the interior gas for providing of the source of the gas tank (17) is nitrogen
Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150647.8A CN106644250B (en) | 2016-12-14 | 2016-12-14 | The mancarried device of air pressure measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150647.8A CN106644250B (en) | 2016-12-14 | 2016-12-14 | The mancarried device of air pressure measurement |
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| Publication Number | Publication Date |
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| CN106644250A true CN106644250A (en) | 2017-05-10 |
| CN106644250B CN106644250B (en) | 2019-01-11 |
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| CN201611150647.8A Active CN106644250B (en) | 2016-12-14 | 2016-12-14 | The mancarried device of air pressure measurement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627331A (en) * | 2018-07-20 | 2018-10-09 | 山东珠琳智造股份有限公司 | A kind of portable detection equipment for pipe gas self-closing valve |
| CN110441008A (en) * | 2018-05-04 | 2019-11-12 | 布劳恩惰性气体系统有限公司 | Leak test equipment, computer program product and leak test component |
| CN116659769A (en) * | 2023-05-30 | 2023-08-29 | 中国民用航空飞行学院 | Method for identifying and detecting leakage flow of sealing cavity of axial-flow compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108627331A (en) * | 2018-07-20 | 2018-10-09 | 山东珠琳智造股份有限公司 | A kind of portable detection equipment for pipe gas self-closing valve |
| CN116659769A (en) * | 2023-05-30 | 2023-08-29 | 中国民用航空飞行学院 | Method for identifying and detecting leakage flow of sealing cavity of axial-flow compressor |
| CN116659769B (en) * | 2023-05-30 | 2024-01-23 | 中国民用航空飞行学院 | Method for identifying and detecting leakage flow of sealing cavity of axial-flow compressor |
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| CN106644250B (en) | 2019-01-11 |
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