CN113047962B - Movable nozzle flow metering device and nozzle flow metering method - Google Patents

Movable nozzle flow metering device and nozzle flow metering method Download PDF

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Publication number
CN113047962B
CN113047962B CN202110287669.3A CN202110287669A CN113047962B CN 113047962 B CN113047962 B CN 113047962B CN 202110287669 A CN202110287669 A CN 202110287669A CN 113047962 B CN113047962 B CN 113047962B
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Prior art keywords
oil
nozzle
cylinder
guide pipe
inlet
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CN113047962A (en
Inventor
李飞宏
阴钊
罗阿利
吴生让
闫文
董志强
李晓盼
焦林
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AECC Aviation Power Co Ltd
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AECC Aviation Power Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/22Fuel supply systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/26Control of fuel supply
    • F02C9/263Control of fuel supply by means of fuel metering valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/26Control of fuel supply
    • F02C9/28Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow

Abstract

The invention discloses a movable nozzle flow metering device and a nozzle flow metering method, which comprise a body frame, a main oil path flow guide pipe and an auxiliary oil path flow guide pipe, wherein the main oil path flow guide pipe and the auxiliary oil path flow guide pipe are arranged on an inner cavity at the top of the body frame; in a metering state, the outlet of the oil receiving cylinder is aligned with the inlet of the oil receiving cylinder; in the non-metering state, the outlet of the oil receiving cylinder is positioned in the area of the oil containing groove, and the fuel oil in the oil receiving cylinder does not flow into the oil receiving cylinder. The invention does not need to frequently cut off the oil circuit switch, thereby improving the working efficiency.

Description

Movable nozzle flow metering device and nozzle flow metering method
Technical Field
The invention belongs to the field of flow calculation of an engine nozzle, and particularly belongs to a movable nozzle flow metering device and a nozzle flow metering method.
Background
At present, the fuel nozzles of the aircraft engines need to measure the flow of a main oil way and an auxiliary oil way, but most of the fuel nozzles still stay at manual timing and visual flow calculation, a meter is clamped through manual timing, an oil way switch is turned on, fuel flows into a measuring tool, the oil way switch is turned off after a set time, then an oil way pipeline is connected into an oil tank, the process is complex, a special nozzle flow measuring device is lacked, and the working efficiency is low.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a movable nozzle flow metering device and a nozzle flow metering method, which solve the problems that the fuel flow metering unit of a nozzle is lacked and the flow metering work efficiency is low at present.
In order to achieve the purpose, the invention provides the following technical scheme: a movable nozzle flow metering device comprises a body frame, a nozzle, a main oil way flow guide pipe and an auxiliary oil way flow guide pipe, wherein the inlet of the main oil way flow guide pipe is connected with main oil way fuel oil of the nozzle, the inlet of the auxiliary oil way flow guide pipe is connected with auxiliary oil way fuel oil of the nozzle, the main oil path guide pipe and the auxiliary oil path guide pipe are arranged on the inner cavity at the top of the body frame, a support column is supported in the inner cavity of the body frame, the support column is rotatably connected with a rotary disc, a plurality of oil receiving cylinders are arranged on the rotary disc in an annular array, the main oil path guide pipe and the auxiliary oil path guide pipe are respectively connected into different oil receiving cylinders, the support column is also fixedly connected with an oil containing groove with an opening at the top, the oil containing groove is used for receiving and taking fuel oil in the oil receiving cylinders, the bottom of the oil containing groove is communicated with an oil tank pipeline, a plurality of oil passing cylinders are annularly arrayed at the bottom of the oil containing groove, and outlets of the oil passing cylinders extend into the measuring tool;
in a metering state, the outlet of the oil receiving cylinder is aligned with the inlet of the oil receiving cylinder;
in a non-metering state, the outlet of the oil receiving cylinder is positioned in the area of the oil containing groove, and the fuel oil in the oil receiving cylinder does not flow into the oil receiving cylinder.
Furthermore, a disc is fixedly connected to the support column, an arc-shaped hole is formed in the disc, a limiting bolt penetrates into the arc-shaped hole, and the limiting bolt is fixedly connected with the rotary disc;
when the limiting bolt is positioned at one end of the arc-shaped hole, the outlet of the oil receiving cylinder is aligned with the inlet of the oil receiving cylinder;
when the limiting bolt is positioned at the other end of the arc-shaped hole, the outlet of the oil receiving cylinder is positioned in the area of the oil containing groove, and the fuel oil in the oil receiving cylinder does not flow into the oil passing cylinder.
Further, an outer cylinder is fixedly connected to the outer wall of the top of the body frame, an inlet of the main oil path flow guide pipe is communicated with an inner cavity of the outer cylinder, an inner cylinder is further arranged in the inner cavity of the outer cylinder, the inner cavity of the inner cylinder is communicated with the auxiliary oil path flow guide pipe, an inlet of the inner cylinder is connected with an auxiliary oil path outlet of the nozzle, and the main oil path outlet of the nozzle faces the inner cavity of the outer cylinder.
Furthermore, an upper cover plate covers the top of the outer cylinder body, the upper cover plate is in sealing contact with the nozzle, a main oil path outlet of the nozzle is located in an inner cavity enclosed by the upper cover plate and the outer cylinder body, the upper cover plate is connected with the outer cylinder body through a first sealing ring, and the upper cover plate is connected with the body frame through a first bolt.
Furthermore, a plurality of air holes are formed in the upper cover plate.
Further, still include oil feed head subassembly and nozzle locating piece, the entry linkage of oil feed head subassembly and nozzle, oil feed head subassembly still passes through second bolted connection with the nozzle locating piece, nozzle locating piece and upper cover plate fixed connection, the slotted structure in the middle of the nozzle locating piece is the inclined plane location.
Furthermore, a second sealing ring is further arranged between the oil inlet head assembly and the nozzle positioning block.
Furthermore, the inlet of the oil inlet head assembly is a ball seal external thread connector, the outlet of the oil inlet head assembly is an inner cone movable sleeve nut type connector, the inlet of the oil inlet head assembly is connected with an oil source, and the outlet of the oil inlet head assembly is connected with a nozzle.
Furthermore, a plurality of casters are connected to the outer wall of the bottom of the body frame, and part of the casters are movable edge-brake type.
The invention also provides a nozzle flow metering method of the movable nozzle flow metering device, which comprises the following steps:
in a metering state, the rotary table is rotated to enable an outlet of the oil receiving cylinder to align with the oil passing cylinder, main oil way fuel oil and auxiliary oil way fuel oil respectively flow out through the main oil way flow guide pipe and the auxiliary oil way flow guide pipe, the main oil way fuel oil and the auxiliary oil way fuel oil respectively enter different measuring tools through independent oil passing cylinders, and the main oil way flow and the auxiliary oil way flow of the nozzle are measured through the measuring tools;
in a non-metering state, the rotary disc is rotated, so that the fuel oil in the oil receiving cylinder flows into the oil containing groove and does not flow into the oil passing cylinder, and the fuel oil flows into the oil tank through the oil tank pipeline.
Compared with the prior art, the invention has at least the following beneficial effects:
the invention provides a movable nozzle flow metering device, which is characterized in that a main oil way fuel oil of a nozzle is received through a main oil way flow guide pipe, an auxiliary oil way fuel oil of the nozzle is received through an auxiliary oil way flow guide pipe, then the main oil way fuel oil and the auxiliary oil way fuel oil enter an oil passing cylinder and then enter a measuring tool to achieve the purpose of metering the flow of the nozzle, or the fuel oil flows into an oil containing groove through rotating a rotary disc and flows into an oil tank through an oil tank pipeline, and the switching between the flow metering state and the non-metering state of the nozzle can be completed through adjusting the rotary disc.
Furthermore, the arc-shaped hole in the disc limits the arc-shaped movement of the limiting bolt, and the state of the oil receiving cylinder can be simply and directly obtained according to the limiting position of the limiting bolt at the two ends of the arc-shaped hole, so that the device is in a metering state or a non-metering state, the structure is simple, the complete manual operation can be completed, and the cost is low.
Furthermore, the main oil way and the auxiliary oil way of the nozzle are limited within a certain range by the outer cylinder and the inner cylinder, so that stable oil outlet of the main oil way and the auxiliary oil way of the nozzle is ensured, and safety and reliability are realized.
Furthermore, the oil inlet head assembly and the nozzle positioning block are connected through the second bolt, the nozzle positioning block is a slope positioning middle groove structure, the position adjustment in the vertical direction of the nozzle can be flexibly adjusted through the diameter matching of the threaded hole and the second bolt, the application range is wider, and meanwhile the sealing performance between the oil inlet head assembly and the nozzle positioning block can be guaranteed through the second sealing ring.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view of B-B in FIG. 1;
FIG. 4 is a top partially enlarged schematic view of the body frame;
FIG. 5 is an enlarged partial view of a support post in the interior cavity of the frame;
in the drawings: 1-a body frame, 2-an outer barrel, 3-an oil inlet assembly, 4-a first bolt, 5-a nozzle positioning block, 6-a manual deflector rod, 7-a measuring cup, 8-a limiting bolt, 9-an upper cover plate, 10-a nozzle, 11-a second bolt, 12-an inner barrel, 13-a main oil path guide pipe, 14-an auxiliary oil path guide pipe, 15-an oil receiving barrel, 16-an oil passing barrel, 17-an oil containing groove, 18-an oil tank pipeline, 19-a support column and 20-a caster.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in figure 1, the invention provides a mobile nozzle flow metering device, which comprises a body frame 1, a nozzle 10, a main and auxiliary oil way dividing and collecting mechanism, a main oil way guide pipe 13, an auxiliary oil way guide pipe 14 and a switching mechanism, wherein specifically, main oil way fuel oil of the nozzle 10 flows into the main oil way guide pipe 13, auxiliary oil way fuel oil of the nozzle 10 flows into the auxiliary oil way guide pipe 14, the inlet of the main oil way guide pipe 13 is welded on the top inner cavity of the body frame 1, the inlet of the auxiliary oil way guide pipe 14 is welded on the top inner cavity of the body frame 1, the body frame 1 is of a frame structure formed by connecting angle steel, wherein the main and auxiliary oil way dividing and collecting mechanism is arranged on the outer wall of the top of the body frame 1 and comprises an outer cylinder 2 and an inner cylinder 12, the outer cylinder 2 and the inner cylinder 12 are both in a conical cover cylinder structure, the inner cylinder 12 and the outer cylinder 2 are both made of organic glass, and the outer cylinder 2 is fixedly connected with the outer wall of the top of the body frame 1, the inner cylinder 12 is arranged in the inner cavity of the outer cylinder 2, the inner cavity of the inner cylinder 12 is communicated with an auxiliary oil path draft tube 14, the inner cavity of the outer cylinder 2 is communicated with a main oil path draft tube 13, a main oil path outlet of the nozzle 10 is hermetically connected with an inlet of the inner cylinder 12, and an auxiliary oil path outlet of the nozzle 10 faces the area of the outer cylinder 2, so that main oil path fuel oil of the nozzle 10 flows into the main oil path draft tube 13, and auxiliary oil path fuel oil of the nozzle 10 flows into the auxiliary oil path draft tube 14;
as shown in fig. 4, specifically, an upper cover plate 9 covers the top opening of the outer cylinder 2, an annular hole is formed in the upper cover plate 9, an O-shaped first sealing ring is installed in the annular hole, the upper cover plate 9 contacts with the upper end opening of the upper cover plate 9 through the O-shaped first sealing ring, meanwhile, a first bolt 4 is connected to the upper cover plate 9, the first bolt 4 is further connected to the top outer wall of the body frame 1, the first bolt 4 is screwed to tightly press the upper cover plate 9 against the outer cylinder 2, the inner cylinder 12 is located in the area enclosed by the upper cover plate 9 and the outer cylinder 2, a positioning plate is bonded to the top opening of the inner cylinder 12, and an auxiliary oil path outlet of the nozzle 10 is hermetically connected to the positioning plate, preferably, the positioning plate and the nozzle 10 are connected by a third sealing ring, and the upper cover plate 9 and the nozzle 10 are hermetically connected;
preferably, the upper cover plate 9 is provided with a plurality of air holes;
as shown in fig. 3, in this embodiment, an inlet of a nozzle 10 is connected to an outlet of an oil inlet head assembly 3, an inlet of the oil inlet head assembly 3 is connected to an oil inlet source, specifically, the outlet of the oil inlet head assembly 3 is an inner cone looper nut type joint, the inlet of the oil inlet head assembly 3 is a ball seal external thread joint, the inlet of the oil inlet head assembly 3 is connected to the oil source, the outlet of the oil inlet head assembly 3 is connected to the nozzle 10, after the oil inlet head assembly 3 is connected to the nozzle 10, the oil inlet head assembly 3 is further connected to a nozzle positioning block 5, the oil inlet head assembly 3 is sleeved on a boss, the boss and the nozzle positioning block 5 are both provided with threaded holes, the oil inlet head assembly 3 is connected to the nozzle positioning block 5 by a second bolt 11, preferably, the position of the nozzle 10 in the vertical direction can be slightly adjusted by selecting the second bolts 11 with different diameters to match the apertures of the threaded holes, wherein, nozzle locating piece 5 and upper cover plate 9 fixed connection, nozzle locating piece 5 is slotted structure in the middle of the inclined plane location, has 4 screw holes on the inclined plane, for the leakproofness of guaranteeing nozzle 10 vertical direction position adjustment in-process, need be equipped with the second sealing washer between oil feed head subassembly 3 and nozzle locating piece 5.
As shown in fig. 5, in this embodiment, a support column 19 is fixedly connected in an inner cavity of the body frame 1, a rotating disc is rotatably connected to the support column 19, a plurality of oil receiving cylinders 15 are annularly arrayed on the rotating disc, the main oil path draft tube 13 and the auxiliary oil path draft tube 14 are respectively connected into different oil receiving cylinders 15, as shown in fig. 2, a manual shift lever 6 is fixedly connected to one side of the rotating disc, the rotating disc is shifted to rotate through the manual shift lever 6, preferably, a circular disc is also fixedly connected to the support column 19, an arc-shaped hole is formed in the circular disc, a limit bolt 8 extends into the arc-shaped hole, the limit bolt 8 is connected to the rotating disc, rotation of the rotating disc is realized by shifting the manual shift lever 6, the limit bolt 8 moves in the arc-shaped hole along with the rotating disc, and when the limit bolt 8 is located at one end of the arc-shaped hole, an outlet of the oil receiving cylinder 15 is aligned with an inlet of the oil receiving cylinder 16; when the limiting bolt 8 is positioned at the other end of the arc-shaped hole, the outlet of the oil receiving cylinder 15 is positioned in the area of the oil containing groove 17, and the fuel oil in the oil receiving cylinder 15 does not flow into the oil passing cylinder 16, in the embodiment, the rotation angle of the manual deflector rod 6 is 15 degrees;
in this embodiment, the supporting column 19 is further fixedly connected with an oil containing tank 17, the top of the oil containing tank 17 is open towards the oil receiving cylinder 15, the oil receiving cylinder 15 is located in the area of the oil containing tank 17, wherein an inner cavity of the oil containing tank 17 is provided with an oil passing cylinder 16, the oil passing cylinder 16 penetrates through the oil containing tank 17 and is connected to a measuring tool, in this embodiment, the measuring tool adopts a measuring cup 7, when the manual shift lever 6 shifts the rotary disc to the oil receiving cylinder 15 one by one corresponding to each oil passing cylinder 16, the main oil path fuel oil in the main oil path flow guide pipe 13 enters into the measuring cup 7 through the oil receiving cylinder 15 and the oil passing cylinder 16, the auxiliary oil path fuel oil in the auxiliary oil path flow guide pipe 14 enters into another measuring cup 7 through another oil receiving cylinder 15 and the oil passing cylinder 16, and the process of measuring the flow of the nozzle 10 is realized through the measuring cup 7, in this embodiment, the bottom of the oil containing tank 17 is communicated with an oil tank pipeline 18, and in a non-measuring state, the manual shift lever 6 is shifted to make the oil receiving cylinder 15 not correspond to the oil passing cylinder 16, the fuel in the fuel receiving cylinder 15 flows into the oil receiving groove 17 and flows into the fuel tank through the tank pipe 18.
In this embodiment, a plurality of casters 20 are disposed at the bottom of the body frame 1, and some of the casters 20 are movable edge brakes; in the present embodiment, four casters 20 are provided, two of which are fixed type and the other two of which are movable side brake type.
The invention also provides a mobile nozzle flow metering method, which comprises the following steps:
in a metering state, the turntable is rotated through the manual deflector rod 6, when the turntable cannot rotate, the fact that outlets of the oil receiving cylinders 15 are aligned with the oil passing cylinders 16 one by one is shown, main oil path fuel oil and auxiliary oil path fuel oil respectively flow out through the main oil path flow guide pipe 13 and the auxiliary oil path flow guide pipe 14, the main oil path fuel oil and the auxiliary oil path fuel oil enter different measuring tools through the different oil receiving cylinders 15 and the different oil passing cylinders 16, and the main oil path flow and the auxiliary oil path flow of the nozzle are measured through the measuring tools;
in the non-metering state, the turntable is rotated through the manual deflector rod 6, so that the turntable rotates in the opposite direction relative to the metering state until the turntable cannot rotate, the oil receiving cylinder 15 is not aligned with the oil passing cylinder 16, the fuel oil in the oil receiving cylinder 15 directly flows into the oil containing groove 17, and the fuel oil flows into the oil tank through the oil tank pipeline 18.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A movable nozzle flow metering device is characterized by comprising a body frame (1), a nozzle (10), a main oil way flow guide pipe (13) and an auxiliary oil way flow guide pipe (14), wherein the inlet of the main oil way flow guide pipe (13) is connected with main oil way fuel oil of the nozzle (10), the inlet of the auxiliary oil way flow guide pipe (14) is connected with auxiliary oil way fuel oil of the nozzle (10), the main oil way flow guide pipe (13) and the auxiliary oil way flow guide pipe (14) are arranged on an inner cavity at the top of the body frame (1), a support column (19) is supported in the inner cavity of the body frame (1), a rotary disc is rotatably connected onto the support column (19), a plurality of oil receiving cylinders (15) are arranged on the rotary disc in an annular array manner, the main oil way flow guide pipe (13) and the auxiliary oil way flow guide pipe (14) are respectively connected into different oil receiving cylinders (15), and an oil containing groove (17) with an opening at the top is fixedly connected onto the support column (19), the oil containing groove (17) is used for receiving fuel oil in the oil receiving cylinder (15), the bottom of the oil containing groove (17) is communicated with an oil tank pipeline (18), a plurality of oil passing cylinders (16) are arranged at the bottom of the oil containing groove (17) in an annular array mode, and outlets of the oil passing cylinders (16) extend into the measuring tool;
in a metering state, an outlet of the oil receiving cylinder (15) is aligned with an inlet of the oil cylinder (16);
in the non-metering state, the outlet of the oil receiving cylinder (15) is positioned in the area of the oil containing groove (17) and the fuel oil in the oil receiving cylinder (15) does not flow into the oil cylinder (16).
2. The mobile nozzle flow metering device of claim 1, wherein a disc is fixedly connected to the supporting column (19), an arc-shaped hole is formed in the disc, a limiting bolt (8) penetrates through the arc-shaped hole, and the limiting bolt (8) is fixedly connected with the rotary disc;
when the limiting bolt (8) is positioned at one end of the arc-shaped hole, the outlet of the oil receiving cylinder (15) is aligned with the inlet of the oil receiving cylinder (16);
when the limiting bolt (8) is positioned at the other end of the arc-shaped hole, the outlet of the oil receiving cylinder (15) is positioned in the area of the oil containing groove (17) and the fuel oil in the oil receiving cylinder (15) does not flow into the oil passing cylinder (16).
3. The mobile nozzle flow metering device of claim 1, characterized in that an outer cylinder (2) is fixedly connected to the top outer wall of the body frame (1), the inlet of the main oil path draft tube (13) is communicated with the inner cavity of the outer cylinder (2), an inner cylinder (12) is further arranged in the inner cavity of the outer cylinder (2), the inner cavity of the inner cylinder (12) is communicated with the auxiliary oil path draft tube (14), the inlet of the inner cylinder (12) is connected with the auxiliary oil path outlet of the nozzle (10), and the main oil path outlet of the nozzle (10) faces the inner cavity of the outer cylinder (2).
4. A mobile nozzle flow metering device according to claim 3, characterized in that the top of the outer cylinder (2) is covered with an upper cover plate (9), the upper cover plate (9) is in sealing contact with the nozzle (10), the main oil path outlet of the nozzle (10) is located in an inner cavity enclosed by the upper cover plate (9) and the outer cylinder (2), the upper cover plate (9) and the outer cylinder (2) are connected through a first sealing ring, and the upper cover plate (9) and the body frame (1) are connected through a first bolt (4).
5. A mobile nozzle flow metering device as claimed in claim 4, wherein the upper cover plate (9) is provided with a plurality of air holes.
6. The mobile nozzle flow metering device of claim 4, characterized by further comprising an oil inlet head assembly (3) and a nozzle positioning block (5), wherein the oil inlet head assembly (3) is connected with an inlet of the nozzle (10), the oil inlet head assembly (3) is further connected with the nozzle positioning block (5) through a second bolt (11), the nozzle positioning block (5) is fixedly connected with the upper cover plate (9), and the nozzle positioning block (5) is of a bevel positioning middle slotted structure.
7. A mobile nozzle flow metering device according to claim 6, characterized in that a second sealing ring is further arranged between the oil inlet head assembly (3) and the nozzle positioning block (5).
8. A mobile nozzle flow metering device according to claim 6, characterized in that the inlet of the oil inlet head assembly (3) is a ball seal male screw joint, the outlet of the oil inlet head assembly (3) is a female cone looper nut type joint, the inlet of the oil inlet head assembly (3) is connected with an oil source, and the outlet of the oil inlet head assembly (3) is connected with the nozzle (10).
9. A mobile nozzle flow metering device according to claim 1, characterized in that a plurality of casters (20) are connected to the bottom outer wall of the body frame (1), and some of the casters (20) are of a movable edge brake type.
10. A nozzle flow metering method of a mobile nozzle flow metering device according to any one of claims 1 to 9, comprising the steps of:
in a metering state, the rotary table is rotated, so that an outlet of the oil receiving cylinder (15) is aligned with the oil passing cylinder (16), main oil way fuel oil and auxiliary oil way fuel oil respectively flow out through a main oil way flow guide pipe (13) and an auxiliary oil way flow guide pipe (14), the main oil way fuel oil and the auxiliary oil way fuel oil respectively enter different measuring tools through the independent oil passing cylinder (16), and the main oil way flow and the auxiliary oil way flow of the nozzle (10) are metered through the measuring tools;
in a non-metering state, the rotary disc is rotated, so that the fuel oil in the oil receiving cylinder (15) flows into the oil containing groove (17) and does not flow into the oil cylinder (16), and the fuel oil flows into the oil tank through the oil tank pipeline (18).
CN202110287669.3A 2021-03-17 2021-03-17 Movable nozzle flow metering device and nozzle flow metering method Active CN113047962B (en)

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Publication number Priority date Publication date Assignee Title
JP2012145337A (en) * 2011-01-06 2012-08-02 Ono Sokki Co Ltd Flow meter calibration device
CN205642568U (en) * 2016-05-16 2016-10-12 上海裕凡实业有限公司 Online calibration system of portable flow
CN206440318U (en) * 2017-01-11 2017-08-25 中国第一汽车股份有限公司 A kind of piston cooling nozzle flow measurement device
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
CN207351509U (en) * 2017-10-09 2018-05-11 湖北医药学院附属襄阳市第一人民医院 A kind of modified measuring cylinder for pharmaceutical experiment
CN109632322A (en) * 2018-12-13 2019-04-16 西安航天动力研究所 A kind of automatic testing system and test method for nozzle flow detection

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