CN114088370B - Device and method for testing distribution unevenness - Google Patents
Device and method for testing distribution unevenness Download PDFInfo
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- CN114088370B CN114088370B CN202111342300.4A CN202111342300A CN114088370B CN 114088370 B CN114088370 B CN 114088370B CN 202111342300 A CN202111342300 A CN 202111342300A CN 114088370 B CN114088370 B CN 114088370B
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- 238000012360 testing method Methods 0.000 title claims abstract description 76
- 238000009826 distribution Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title abstract description 9
- 238000007664 blowing Methods 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000007306 turnover Effects 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 55
- 239000010687 lubricating oil Substances 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000000295 fuel oil Substances 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 10
- 239000000446 fuel Substances 0.000 claims description 10
- 238000000889 atomisation Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 239000010724 circulating oil Substances 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims 2
- 230000008569 process Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a testing device and a testing method for distribution unevenness, wherein the testing device comprises an electric control device, a PLC, an electromagnetic valve, a pneumatic triple piece, an oil tank, an oil cooler, a filter, a stop valve, a pressure regulating valve, an oil pump, an overflow valve, an energy accumulator, a pressure gauge, a temperature control gauge, a flowmeter, a nozzle mounting seat, a fixed cavity, a distribution collector, a nozzle, a fixing screw, an adjusting bolt, a scale, a sliding cover plate, an adjustable support plate, a blowing device, a measuring cylinder, an oil receiving disc, a pipeline, a turnover mechanism and a blowing device. The invention ensures that the nozzle can meet the test process requirements under different media, and improves the test precision and test efficiency of the parts.
Description
Technical Field
The invention belongs to the technical field of nonstandard manufacturing equipment and testing, and relates to a method for measuring distribution non-uniformity of nozzle parts and a used testing device.
Background
At present, fuel nozzles of an aeroengine are divided into fuel (aviation kerosene) type nozzles and lubricating oil (aviation lubricating oil) type nozzles according to used media, and the main difference is that the fuel nozzles are mainly used for injecting fuel oil for atomization in the engine and then generating propulsion power required by the engine through combustion, and the lubricating oil type nozzles are mainly used for power sources, lubrication and rust prevention of sliding parts in the engine, so that the functions are different.
Since the two media differ greatly in their properties, e.g. the kinematic viscosity at different temperatures is different, the general parameters of the two media are usually comparedAll at 40℃and a large difference in kinematic viscosity was found. Examples: the kinematic viscosity of No. 3 aviation kerosene is 1.25-8.0 mm 2 The kinematic viscosity of the No. 15 aerolubricating oil is 13.84-24.69 mm 2 And/s, which causes inconsistency in fluidity due to a difference in viscosity. For example, when the distribution unevenness is tested at a specific test temperature, for a lubricating oil nozzle, the movement viscosity is higher, the fluidity is poorer, the time required for emptying the test medium is longer, and if the medium cannot be completely cleaned, the accuracy of the distribution unevenness test data can be affected. If the medium in the metering device is emptied for a long time, the test frequency is slowed down, and the test efficiency is affected.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a testing device and a testing method for distribution unevenness, wherein the testing device comprises a metering conversion device for the distribution unevenness, so that the technical defects of the conversion device in the existing distribution measuring system are overcome, a brand-new test medium collecting and evacuating mode is designed, the nozzles can meet the testing process requirements under different mediums, and the testing precision and the testing efficiency of parts are improved.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the device for testing the distribution unevenness comprises a measuring cylinder for collecting fuel oil or lubricating oil sprayed out of a nozzle, wherein the measuring cylinder is a container with a non-uniform cross section and a large upper part and a small lower part, the device for testing the distribution unevenness also comprises a turnover mechanism and a blowing device,
the turning mechanism comprises a turning mechanism body and a turning mechanism body, wherein the turning mechanism body comprises a turning mechanism body,
the two mounting seats are arranged at intervals, and first mounting holes are formed in the opposite side surfaces of the two mounting seats;
the measuring cylinder is vertically arranged in the second mounting holes of the bottom plate, and two ends of the bottom plate are rotationally connected in the first mounting holes through a rotating shaft and a rolling bearing;
one end of the switching rod is fixed on a rotating shaft connected with the bottom plate, and the other end of the switching rod is connected with the air cylinder assembly;
the cylinder assembly is used for driving one end of the switching rod connected with the cylinder assembly to do reciprocating rotation around a rotating shaft connected with the bottom plate, so as to drive the bottom plate and the measuring cylinder to rotate;
the pressing plate is arranged on the surface of the bottom plate and presses the measuring cylinder on the surface of the bottom plate;
the air blowing device comprises a device body and a blowing device body,
the number and the position distribution of the steel pipes are in one-to-one correspondence with the number and the position distribution of the measuring cylinders;
the air blowing pipe fitting is provided with a connecting hole and an air inlet, and one ends of a plurality of steel pipes are connected to the connecting hole;
the air pipe quick-change connector is connected to the air inlet of the air blowing pipe fitting, and the air blowing pipe fitting is connected with an air source through the air pipe quick-change connector;
when the turnover mechanism acts, the measuring cylinder turns over, and the blowing device acts at the same time, so that the gas in the steel pipe is blown into the measuring cylinder.
As an option, the cylinder is composed of two cylinders with different inner diameters, the cylinder with larger inner diameter is arranged above, the cylinder with smaller inner diameter is arranged below, the cylinder design mode is used for testing a main oil way and an auxiliary oil way of a nozzle, the corresponding oil (fuel oil or lubricating oil) volume is larger due to the fact that the flow of the main oil way is larger, the flow of the auxiliary oil way is smaller, the corresponding oil (fuel oil or lubricating oil) volume is smaller, the cylinder design can be used for simultaneously meeting two tests (the measuring range and the minimum scale of the cylinder are respectively suitable for the main oil way and the auxiliary oil way), the cylinder does not need to be replaced and detached, and the measuring accuracy is higher.
Further, the distribution unevenness testing apparatus further comprises,
the pneumatic triple piece is connected with an air source and used for regulating pressure, filtering and distributing output air of the air source;
the two-position four-way electromagnetic valve is respectively connected with the air cylinder assembly and the air pipe quick-change connector; and the PLC is electrically connected with the two-position four-way electromagnetic valve and the pneumatic triple piece and controls the actions of the two.
Alternatively, the distribution unevenness testing apparatus further comprises,
the fixed cavity is used as a closed outer wall of the distribution collector and the drainage cavity;
the distribution collector is positioned at the central position in the fixed cavity and right below the nozzle and is used as a collector in a distribution state after the fuel oil or the lubricating oil sprayed by the nozzle is atomized;
the adjustable supporting plate is connected in the fixed cavity in a lifting manner through an adjusting bolt and is positioned above the distribution collector, and the center of the adjustable supporting plate is of a hollow structure;
the nozzle mounting seat is detachably connected to the hollow structure on the adjustable supporting plate and used for fixing the nozzle for test;
the sliding cover plate is connected to the adjustable support plate in a sliding manner, and the sliding direction of the sliding cover plate is along the radial direction of the circumference taking the axis of the nozzle as the center, and is used for covering the hollow part of the adjustable support plate or observing the atomization condition of the nozzle;
the adjusting bolt is connected with the fixed cavity at one end and the adjustable supporting plate at the other end, and the heights of the adjustable supporting plate and the nozzle mounting seat are adjusted by rotating the adjusting bolt, so that the distance between the nozzles and the distribution collector is adjusted;
the scale is connected to the adjustable supporting plate and is used as a reference set value for displaying and adjusting the heights of the nozzles and the distribution collector, and meanwhile, the scale is used as a reference for keeping the adjustable supporting plate in a horizontal state by the adjusting bolt.
Alternatively, the distribution collectors are collectors which are equally divided along the circumferential direction according to the included angles of the circle centers.
Alternatively, the nozzle mount is attached to the adjustable support plate by a set screw.
Alternatively, the distribution unevenness testing apparatus further comprises,
the main oil way is connected with the first interface of the nozzle and comprises a flowmeter, an energy accumulator, an overflow valve, an oil pump and a stop valve which are sequentially connected, and the stop valve is connected with the oil tank;
the auxiliary oil way is connected with the second interface of the nozzle and comprises a flowmeter, an energy accumulator, an overflow valve, an oil pump and a stop valve which are sequentially connected, and the stop valve is connected with the oil tank;
the oil tank is internally provided with a filter;
the oil cooler is connected with the oil tank;
the oil receiving disc is positioned below the measuring cylinder and is communicated with the oil tank.
According to the invention, the fuel oil or the lubricating oil in the measuring cylinder rapidly flows out of the measuring cylinder through the turnover mechanism, and the colleague rapidly cleans the fuel oil or the lubricating oil in the measuring cylinder by using the blowing device, so that preparation is provided for the next measurement, and meanwhile, the influence on the testing precision and repeatability due to uncleanness of fuel oil discharge is avoided.
A non-uniformity testing method using the testing device comprises the following steps,
step one, installing and fixing a nozzle above a hollow structure on an adjustable supporting plate through the nozzle;
step two, starting an oil pump and a circulating oil way;
step three, determining a test medium of a nozzle to be tested, and setting the action duration time of the air blowing device according to different medium types;
step four, adjusting a stop valve, inputting a signal to a PLC (programmable logic controller) after the design test pressure of the nozzle is reached and the pressure is stable, and measuring a main oil way and an auxiliary oil way which are connected with the nozzle to realize measurement of distribution unevenness;
and fifthly, controlling the turnover mechanism and the blowing device to empty the test medium in the measuring cylinder when the test is finished.
Compared with the prior art, the device and the method for testing the distribution unevenness have the following characteristics:
1. the compatibility is strong: the method is suitable for measuring the distribution unevenness of the engine nozzles of two different test media;
2. the reliability is high: the cylinder assembly has good stability, smooth action, good emptying effect of the blowing device on the metering barrel, sensitivity, reliability and good repeatability of nozzle distribution non-uniformity test.
3. The efficiency is high: when the nozzle is tested, under the cooperation of the blowing device, the emptying speed of residual media (fuel oil and lubricating oil) in the measuring cylinder is enhanced, and the testing precision and efficiency are greatly improved.
Drawings
FIG. 1 is a top view of a distribution non-uniformity testing apparatus;
FIG. 2 is a cross-sectional view of a distribution non-uniformity testing apparatus corresponding to FIG. 1;
FIG. 3 is a schematic diagram of a distribution unevenness testing apparatus;
FIG. 4 is a diagram of the turnover mechanism;
FIG. 5 is a schematic diagram of a blower;
in the drawings, 1. Bottom plate, 2. Measuring cylinder, 3. Cylinder assembly, 4. Adapter rod, 5. Pressure plate, 6. Steel tube, 7. Air blowing pipe, 8. Air pipe quick change joint, 9. Scale, 10. Adjusting bolt, 11. Set screw, 12. Nozzle, 13. Nozzle mount, 14. Sliding cover plate, 15. Adjustable support plate, 16. Distribution collector, 17. Fixed cavity, 18 nozzle atomizing surface, 19. Distributor measuring base, 20. Flowmeter, 21. Accumulator, 22. Overflow valve, 23. Oil pump, 24. Stop valve, 25. Filter, 26. Oil receiving disc.
Detailed Description
The present invention will be further described with reference to the drawings and the specific embodiments, but it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations made according to the ordinary skill and familiar means of the art to which this invention pertains are included within the scope of the present invention without departing from the above technical idea of the invention.
In order to meet the requirements of field test experiments, the invention designs the test device with the blowing device and the turnover mechanism, which is used for meeting the test requirements of different media. The performance test of the nozzle 12 is mainly to measure the flow, distribution unevenness, atomization and other performances of the parts, wherein twelve-equal-partition test methods are adopted for measuring the distribution unevenness, namely, the medium sprayed by the nozzle 12 is uniformly distributed in 12 collecting measuring cylinders 2 for comparison, and after the distribution unevenness is determined, the medium in the measuring cylinders 2 is emptied.
As shown in fig. 1 to 5, the distribution unevenness testing device is mainly composed of an electric control device, a PLC, an electromagnetic valve, a pneumatic triple piece, an oil tank, an oil cooler, a filter 25 (two groups are in total, one group is rough filtration, two groups are fine filtration), seven pieces of a stop valve 24 (pressure regulating valve), an oil pump 23, two pieces of an overflow valve 22, four pieces of an accumulator 21, four pieces of a pressure gauge, two pieces of a temperature control gauge, two pieces of a flowmeter 20, a nozzle mounting seat 13, a fixed cavity 17, a distribution collector 16, a nozzle 12, a fixing screw 11, an adjusting bolt 10, a scale 9, a sliding cover plate 14, an adjustable supporting plate 15, a blowing device, a metering device (measuring cylinder 2), a turnover mechanism, an oil receiving disc 26 and a pipeline, wherein the electric control device and the PLC are control units, the other are executing units, the turnover mechanism and the blowing device are core components in the executing unit, the turnover mechanism is composed of a bottom plate 1, the measuring cylinder 2, a cylinder assembly 3, a transfer rod 4, a pressing plate 5, a blowing device is composed of a steel pipe 6, a blowing pipe 7, a fast-changing connector 8 and the like, the mounting seat 13, the fixing screw 11 is used for fixing the testing nozzle 12 on the adjustable supporting plate 15, the turnover mechanism can be adjusted by the adjusting bolt 9, the medium can be adjusted by the high-accuracy and the medium can be adjusted by the measuring device, and the medium can be adjusted by the high-accuracy and the medium can be repeatedly and the medium can be measured by the device (the device is adjusted by the device and the medium can be adjusted by the high and the medium by the device and the device is adjusted by the device and the device is 2 and the device can be adjusted by the device and the device can be cooled. The other accessories are main working parts of the device.
Specifically, the functions and roles of the components are as follows:
the mounting seat is used for mounting the turnover mechanism;
the base plate 1: the main body frame which is used as the whole turnover mechanism for turning over and supporting the measuring cylinder 2 is rotatably connected with the mounting seat with the rolling bearing at two ends through a rotating shaft;
measuring cylinder 2: for collecting the fuel or oil ejected from the nozzle 12;
cylinder assembly 3: the tail end of the conversion rod 4 is driven to do reciprocating (push-pull) rotation around the rotating shaft, so as to drive the bottom plate 1 to rotate;
transfer rod 4: one end of the cylinder is connected to the rotating shaft of the bottom plate 1, and the other end of the cylinder is connected with the cylinder assembly 3;
and (5) pressing plate: for pressing the measuring cylinder 2 against the base plate 1;
scale 9: the height setting value of the adjusting nozzle 12 and the distribution collector 1 is displayed, and meanwhile, when three adjusting bolts 10 are adjusted, the adjustable supporting plate 15 can keep a horizontal reference value, and the three adjusting bolts 10 determine a plane, namely the plane in which the adjustable supporting plate 15 is located;
nozzle atomizing surface 18: refers to the reference surface of the nozzle 12 when the nozzle opening starts to generate atomization under the action of pressure;
the distributor measures the base 19: the distribution collector 16 begins to collect the highest datum level of atomized fuel or oil;
adjusting bolt 10: the height adjusting bolts 10 are connected to the adjustable supporting plate 15 and the fixed cavity 17 at the lower ends of the 3 adjusting bolts 10, and the adjusting bolts 10 are provided with a nut for adjusting the height, and the nut is rotated, so that the 3 adjusting bolts 10 drive the adjustable supporting plate 15 to move up and down relative to the fixed cavity 17, as shown in fig. 1 and 2;
set screw 11: the adjustable support plate 15 is used for connecting the nozzle mounting seat 13 with the adjustable support plate 15, so that the disassembly and the installation are convenient;
nozzle mount 13: a fixture for fixing the nozzle 12 to be tested, a nozzle mount 13 of different forms for mounting different types of nozzles 12, the nozzle mount 13 being connected with the nozzle mount 11 by a fixing screw;
sliding cover 14: for covering the hollow portion of the adjustable support plate 15, while also observing the atomization of the nozzle 12, as shown in fig. 1 and 2, the sliding cover plate 14 can be moved back and forth to cover or uncover the hollow portion of the adjustable support plate 15;
adjustable support plate 15: located within the fixed cavity 17 and above the distribution collector 16 for the fixation of the different nozzle mounts 13 and for the adjustment of the spacing between the nozzles 12 and the distribution collector 16;
distribution collector 16: the collector in the distribution state of the atomized fuel oil or lubricating oil in the nozzle 12 is shown in fig. 1, and the distribution collector 16 is 12 structures which are equally divided into a circle according to the included angle of the circle center;
fixing cavity 17: the closed outer wall of the distribution collector 16 and the drainage cavity, as shown in fig. 1 and 2, the fixed cavity 17 is a rotationally symmetrical shell;
pneumatic triplet: the compressed air is used for regulating pressure, filtering and distributing the compressed air in the air source;
two-position four-way electromagnetic valve: for switching the direction of the air inlet and outlet of the cylinder assembly 3 to achieve the reciprocating motion of the cylinder assembly 3. In the test process, the interfaces of the two-position four-way electromagnetic valve are respectively provided with P, O, A, B interfaces, wherein a P port is connected with an air inlet pipe, an O port is connected with an air outlet pipe, an A port is connected with the bottom of a moving cylinder in the cylinder assembly 3, a B port is connected with the top of the moving cylinder, and when an electromagnetic valve coil is electrified, compressed air is fed by P-A, exhausted by B-0 and pushes the cylinder to eject; when the solenoid valve coil is powered off, compressed air is fed in from P-B, A-0 is exhausted, and the cylinder is pushed to retract in the opposite direction.
As shown in figure 5, a total of 12 steel pipes 6 are connected on the same side of the air blowing pipe fitting 7 at intervals in parallel, the air blowing pipe fitting 7 is connected with an air source through an air pipe quick-change connector 8, and the 12 steel pipes 6 correspond to 12 measuring cylinders 2.
The working processes of the turnover mechanism and the blowing device are as follows: when the measuring mode is entered, the ejection rod of the air cylinder assembly 3 of the turnover mechanism performs ejection action under the action of air pressure, and simultaneously pushes the conversion rod 4 to rotate to drive the measuring cylinder 2, the pressing plate 5 and the base 1 to move to a vertical state, so that the test result can be read after the oil collection is stopped in the test time; and then ending the measuring mode, and retracting the ejector rod of the cylinder assembly 3 under the action of reverse air pressure to restore to the original state.
As shown in fig. 3 and 4, the measuring cylinder 2 comprises two sections of cylindrical cavities, the lower inner diameter is small, the upper inner diameter is large, when the test is not started, the measuring cylinder 2 is in a horizontal state, the steel pipe 6 of the blowing device is in a horizontal state, when the test is started, the measuring cylinder 2 is turned over by 90 degrees, the opening is upward to receive fuel or lubricating oil, after the measuring cylinder 2 finishes receiving the fuel or the lubricating oil, the opening of the measuring cylinder 2 is turned downward by 90 degrees under the action of the cylinder assembly 3 to pour the fuel or the lubricating oil out of the measuring cylinder 2 and enter the oil receiving basin 26, at the moment, the steel pipe 2 of the blowing device is in a horizontal position, the blowing steel pipe 6 blows air from the opening end of the measuring cylinder 2 (the position of the outlet of the steel pipe 6 is approximately 2-5 mm away from the opening end of the measuring cylinder 2), and the fuel or the lubricating oil in the measuring cylinder 2 is rapidly discharged under the assistance of wind pressure. The cross-sectional area of the measuring cylinder 2 is large and small up and down, and corresponds to different measuring ranges and minimum scale values, so that the main oil way and the auxiliary oil way (the main oil way flow is large and the auxiliary oil way flow is small) of the nozzle 12 are simultaneously tested by one measuring cylinder 2, the measuring range and the measuring precision are improved, residual fuel oil or lubricating oil is extruded and discharged out of the measuring cylinder 2 through the air pressure of the blowing steel pipe 6, the time is saved, and the problem that the fuel oil or lubricating oil is difficult to clean due to viscosity change and influences the next test after the time is long is avoided.
The distribution collector 16 shown in fig. 1 and 2 is the same part, but is a schematic view of fig. 1 when the nozzle mount 13 is not mounted, so that 12 collector structures of the distribution collector 16 are observed from a top view, wherein the collector structures are equally divided according to the included angle of the center of a circle.
As shown in fig. 3, the test method using the above-described distribution unevenness test apparatus is as follows:
step 1. The nozzle 12 is mounted and fixed on the adjustable support plate 15 at a hollow structure (center position in fig. 2) by the nozzle mount 13 and the fixing screw 11.
Step 2, turning on a power supply of the equipment, starting an oil pump 23 and a circulating oil way through an electric control device;
step 3, determining a test medium in the test nozzle 12, and if the test nozzle 12 is selected to test the lubricating oil, setting the blowing time of a blowing device to be 5 seconds; if the nozzle 12 is selected to test the fuel, the blowing time of the blowing device is set to be 3 seconds;
step 4, implementing measurement: the stop valve 24 is adjusted, after the pressure gauge in the testing device reads the testing pressure and keeps stable, signals are input to the PLC through the electric control device, the main oil way and the auxiliary oil way of the nozzle 12 are measured, and the required measurement of the distribution unevenness is completed under the control of the internal program of the PLC;
and 5, after the test is finished, manually controlling the turnover mechanism and the blowing device, emptying the test medium in the metering device (the measuring cylinder 2), and closing the power supply of the equipment.
Claims (6)
1. The utility model provides a distribution unevenness testing arrangement, includes measuring cylinder (2) that are used for collecting the fuel or the lubricating oil of nozzle (12) blowout, measuring cylinder (2) are big-end-up's non-uniform cross section container, its characterized in that: the device also comprises a turnover mechanism, a blowing device, a fixed cavity (17), a distribution collector (16), an adjustable supporting plate (15), a nozzle mounting seat (13), a sliding cover plate (14), an adjusting bolt (10) and a scale (9), wherein,
the turning mechanism comprises a turning mechanism body and a turning mechanism body, wherein the turning mechanism body comprises a turning mechanism body,
the two mounting seats are arranged at intervals, and first mounting holes are formed in the opposite side surfaces of the two mounting seats;
the measuring cylinder comprises a bottom plate (1), wherein a plurality of second mounting holes are formed in the bottom plate (1), the measuring cylinder (2) is vertically arranged in the second mounting holes of the bottom plate (1), and two ends of the bottom plate (1) are rotationally connected in the first mounting holes through rotating shafts and rolling bearings;
the rotating shaft is connected with the bottom plate (1), and one end of the rotating shaft is connected with the cylinder assembly (3);
the cylinder assembly (3) is used for driving one end of the switching rod (4) connected with the cylinder assembly (3) to do reciprocating rotation around a rotating shaft connected with the bottom plate (1), so as to drive the bottom plate (1) and the measuring cylinder (2) to rotate;
the pressing plate (5) is arranged on the surface of the bottom plate (1), and the measuring cylinder (2) is pressed on the surface of the bottom plate (1);
the air blowing device comprises a device body and a blowing device body,
the number and the position distribution of the steel pipes (6) are in one-to-one correspondence with the number and the position distribution of the measuring cylinders (2);
the air blowing pipe fitting (7) is provided with a connecting hole and an air inlet, and one ends of a plurality of steel pipes (6) are connected to the connecting hole;
the air pipe quick-change connector (8), the air pipe quick-change connector (8) is connected to the air inlet of the air blowing pipe fitting (7), and the air blowing pipe fitting (7) is connected with an air source through the air pipe quick-change connector (8);
when the turnover mechanism acts, the measuring cylinder (2) turns over, the blowing device acts at the same time, and the gas in the steel pipe (6) is blown into the measuring cylinder (2);
the fixed cavity (17) is used as a closed outer wall of the distribution collector (16) and a drainage cavity;
the distribution collector (16) is positioned at the central position in the fixed cavity (17) and is positioned right below the nozzle (12) and used as a collector in a distribution state after the fuel oil or the lubricating oil sprayed by the nozzle (12) is atomized;
the adjustable supporting plate (15) is connected in the fixed cavity (17) in a lifting manner through the adjusting bolt (10) and is positioned above the distribution collector (16), and the center position of the adjustable supporting plate (15) is of a hollow structure;
the nozzle mounting seat (13) is detachably connected to the hollow structure of the adjustable supporting plate (15) and is used for fixing the nozzle (12) for test;
the sliding cover plate (14) is connected to the adjustable support plate (15) in a sliding manner, and the sliding direction of the sliding cover plate is along the radial direction of the circumference taking the axis of the nozzle (12) as the center, and is used for covering the hollow part of the adjustable support plate (15) or observing the atomization condition of the nozzle (12);
one end of the adjusting bolt (10) is connected to the fixed cavity (17), the other end of the adjusting bolt is connected to the adjustable supporting plate (15), and the heights of the adjustable supporting plate (15) and the nozzle mounting seat (13) are adjusted by rotating the adjusting bolt (10), so that the distance between the nozzles (12) and the distribution collector (16) is adjusted;
the scale (9) is connected to an adjustable support plate (15) and serves as a reference setting value for displaying and adjusting the heights of the nozzles (12) and the distribution collector (16), and meanwhile serves as a reference for keeping the adjustable support plate in a horizontal state by an adjusting bolt (10).
2. The distribution non-uniformity testing apparatus according to claim 1, wherein: also included is a method of manufacturing a semiconductor device,
the pneumatic triple piece is connected with an air source and used for regulating pressure, filtering and distributing output air of the air source;
the two-position four-way electromagnetic valve is respectively connected with the air cylinder assembly (3) and the air pipe quick-change connector (8);
and the PLC is electrically connected with the two-position four-way electromagnetic valve and the pneumatic triple piece and controls the actions of the two.
3. The distribution non-uniformity testing apparatus according to claim 1, wherein: the distribution collectors (16) are collectors which are equally divided along the circumferential direction according to the included angles of the circle centers.
4. The distribution non-uniformity testing apparatus according to claim 1, wherein: the nozzle mounting seat (13) is connected to the adjustable support plate (15) through a fixing screw (11).
5. The distribution non-uniformity testing apparatus according to claim 1, wherein: also included is a method of manufacturing a semiconductor device,
the main oil way is connected with a first interface of the nozzle (12), the main oil way comprises a flowmeter (20), an energy accumulator (21), an overflow valve (22), an oil pump (23) and a stop valve (24) which are sequentially connected, and the stop valve (24) is connected with the oil tank;
the auxiliary oil way is connected with the second interface of the nozzle (12), and comprises a flowmeter (20), an energy accumulator (21), an overflow valve (22), an oil pump (23) and a stop valve (24) which are sequentially connected, wherein the stop valve (24) is connected with the oil tank;
the oil tank is internally provided with a filter (25);
the oil cooler is connected with the oil tank;
the oil receiving disc is positioned below the measuring cylinder (2) and is communicated with the oil tank.
6. A method of testing non-uniformity using the test apparatus of claim 5, wherein: comprising the steps of (a) a step of,
step one, fixing a nozzle (12) above a hollow structure on an adjustable supporting plate (15) through a nozzle mounting (13);
step two, starting an oil pump (23) and a circulating oil way;
step three, determining a test medium of a nozzle (12) to be tested, and setting the action duration time of the blowing device according to different medium types;
step four, adjusting a stop valve (24), inputting a signal to the PLC after the design test pressure of the nozzle (12) is reached and the pressure is stable, and measuring a main oil way and an auxiliary oil way which are connected with the nozzle (12) to realize measurement of distribution unevenness;
and fifthly, controlling the turnover mechanism and the blowing device to empty the test medium in the measuring cylinder (2) after the test is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111342300.4A CN114088370B (en) | 2021-11-12 | 2021-11-12 | Device and method for testing distribution unevenness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111342300.4A CN114088370B (en) | 2021-11-12 | 2021-11-12 | Device and method for testing distribution unevenness |
Publications (2)
| Publication Number | Publication Date |
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| CN114088370A CN114088370A (en) | 2022-02-25 |
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| ZA957777B (en) * | 1994-09-16 | 1996-04-09 | Nissei Asb Machine Co Ltd | Injection stretch blow molding apparatus and method |
| CA2180357A1 (en) * | 1995-01-30 | 1996-08-08 | Larry James Finn | Compost Curing and Odor Control System |
| US5753279A (en) * | 1994-09-16 | 1998-05-19 | Nissei Asb Machine Co., Ltd. | Injection stretch blow molding apparatus |
| CN107560838A (en) * | 2017-05-24 | 2018-01-09 | 天津成立航空技术有限公司 | A kind of fuel oil single injector radial distribution experimental rig and its test method |
| CN107560836A (en) * | 2017-05-24 | 2018-01-09 | 天津成立航空技术有限公司 | A kind of fuel oil single injector circumferentially distributed experimental rig and its test method |
| CN207019908U (en) * | 2017-05-24 | 2018-02-16 | 天津成立航空技术有限公司 | A kind of fuel oil single injector radial distribution experimental rig |
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| ZA957777B (en) * | 1994-09-16 | 1996-04-09 | Nissei Asb Machine Co Ltd | Injection stretch blow molding apparatus and method |
| US5753279A (en) * | 1994-09-16 | 1998-05-19 | Nissei Asb Machine Co., Ltd. | Injection stretch blow molding apparatus |
| CA2180357A1 (en) * | 1995-01-30 | 1996-08-08 | Larry James Finn | Compost Curing and Odor Control System |
| CN107560838A (en) * | 2017-05-24 | 2018-01-09 | 天津成立航空技术有限公司 | A kind of fuel oil single injector radial distribution experimental rig and its test method |
| CN107560836A (en) * | 2017-05-24 | 2018-01-09 | 天津成立航空技术有限公司 | A kind of fuel oil single injector circumferentially distributed experimental rig and its test method |
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