CN103672946A - Device for quantitatively adjusting large-flow fuel for burning under high-pressure environment - Google Patents
Device for quantitatively adjusting large-flow fuel for burning under high-pressure environment Download PDFInfo
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- CN103672946A CN103672946A CN201310631574.4A CN201310631574A CN103672946A CN 103672946 A CN103672946 A CN 103672946A CN 201310631574 A CN201310631574 A CN 201310631574A CN 103672946 A CN103672946 A CN 103672946A
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Abstract
The invention relates to a device for quantitatively adjusting large-flow fuel for burning under a high-pressure environment and belongs to the technical field of fuel supply. The device comprises a feeding pipeline and corresponding parts, the feeding pipeline is divided into a pipeline A and a pipeline B, one end of the pipeline A is connected with a fuel supply device while the other end of the same is connected with a test bench, a first manual stop valve, a flow meter, a first pressure meter, a cavitation venturi, a third manual stop valve, a second pressure meter and a throttling valve are sequentially arranged on the pipeline A according to the feeding sequence, a proportional valve and a second manual stop valve are arranged on the pipeline B, and one end of the pipeline B is connected between the first pressure meter and the cavitation venturi on the pipeline A while the other end of the same is connected between the third manual stop valve and the second pressure meter on the pipeline A. Adjusting is mainly performed by the cavitation venturi, the proportional valve serves as an assisting means to perform accurate adjusting, and total flow is ensured to be unchanged by adjusting opening degree of the proportional valve through flow feedback.
Description
Technical field
The present invention relates under hyperbaric environment large flow quota of fuel adjusting device for burning, belong to fuel and supply field.
Background technology
Test bay engine and heater fuel supply great majority adopt flow control valve to regulate at present, flow valve is mainly used in hydraulic system, if the system for similar kerosene medium can be brought the problems such as degree of regulation is low and unstable, and flow valve adjustable range is also lower, the QVKZOR-T-10/90 type proportional flow control valve of producing as Italian ATOS company, this model flow valve is Direct Action Type, and maximal regulated flow is 100L/min, far below the requirement of testing stand heater maximum stream flow.Selecting ready-made flow valve is to meet the requirement of the large flow fine adjustment of test bay heater fuel regulating system, needs independent research adjusting device for this reason.
Summary of the invention
The present invention uses for reference the cavitation Venturi tube generally adopting in liquid-propellant rocket engine liquid hydrogen liquid oxygen system, is applied in heater fuel regulating system, is aided with flow valve simultaneously and coordinates adjusting, finally reaches the object of large flow fine adjustment.
For achieving the above object, technical scheme of the present invention is as follows:
Large flow quota of fuel adjusting device for burning under a kind of hyperbaric environment, described device comprises: the first hand stop valve, flowmeter, the first Pressure gauge, proportioning valve, cavitation Venturi tube, the second hand stop valve, the 3rd hand stop valve, the second Pressure gauge, choke valve, and corresponding feeding pipe; Described feeding pipe is divided into A pipeline and B pipeline, wherein A pipeline one end is connected with fuel supply device, the other end is connected with test bay engine, is provided with successively the first hand stop valve, flowmeter, the first Pressure gauge, cavitation Venturi tube, the 3rd hand stop valve, the second Pressure gauge and choke valve by charging order on A pipeline; On B pipeline, be provided with proportioning valve and the second hand stop valve, one end of B pipeline is connected between the first Pressure gauge and cavitation Venturi tube on A pipeline, and the other end of B pipeline is connected between the 3rd hand stop valve and the second Pressure gauge on A pipeline.
Described cavitation Venturi tube is for controlling and regulate the element of fluid flow in liquid line, in it, profile is convergence-expansion profile with venturi, middle part is venturi, and venturi both sides are bell-mouth structure of air, and described venturi connects less one end of diameter in two bell-mouth structure of airs.When forming after cavitation at venturi position, as long as the pressure of its entrance is constant, just can keep flow constant, and the impact that not changed by back-pressure, and can suppress fluctuation pressure back transfer, the stability of keeping system.Cavitation Venturi tube is only relevant with inlet pressure in cavitation state down-off, and when inlet pressure changes, cavitating venturi flow also will change, and supplies at a fixed location like this Flow-rate adjustment very high to the requirement of cavitating venturi inlet pressure, wishes that its inlet pressure is stabilized in steady state value.
When under described hyperbaric environment, burning is by large flow quota of fuel adjustment device work, by all valve opens, by regulating proportioning valve can change the fuel flow rate through cavitation Venturi tube, pressure by gauge measurement feeding pipe changes, emergency cut-off feeding pipe when the first～three hand stop valve is used for occurring safe condition, supplies fuel from fuel supply device to test bay engine by described device.
Beneficial effect
Under hyperbaric environment of the present invention, burning adopts cavitation Venturi tube and flow valve adjusting in parallel by large flow quota of fuel adjusting device, can reduce the requirement to cavitating venturi inlet pressure, with cavitating venturi, be adjusted to master, proportioning valve carries out fine adjustment as supplementary means, by flow feedback regulation proportioning valve aperture, guarantee that total flow is constant simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of large flow quota of fuel adjusting device for burning under hyperbaric environment;
Fig. 2 is the structural representation of cavitation Venturi tube.
Wherein, 1-the first hand stop valve, 2-flowmeter, 3-the first Pressure gauge, 4-proportioning valve, 5-the second hand stop valve, 6-cavitation Venturi tube, 7-the 3rd hand stop valve, 8-the second Pressure gauge, 9-choke valve.
The specific embodiment
Large flow quota of fuel adjusting device for burning under a kind of hyperbaric environment, described device comprises: the first hand stop valve 1, flowmeter 2, the first Pressure gauge 3, proportioning valve 4, cavitation Venturi tube 6, the second hand stop valve 5, the 3rd hand stop valve 7, the second Pressure gauge 8, choke valve 9, and corresponding feeding pipe; Described feeding pipe is divided into A pipeline and B pipeline, wherein A pipeline one end is connected with fuel supply device, the other end is connected with test bay engine, is provided with successively the first hand stop valve 1, flowmeter 2, the first Pressure gauge 3, cavitation Venturi tube 6, the 3rd hand stop valve 7, the second Pressure gauge 8 and choke valve 9 by charging order on A pipeline; On B pipeline, be provided with proportioning valve 4 and the second hand stop valve 5, one end of B pipeline is connected between the first Pressure gauge 3 and cavitation Venturi tube 6 on A pipeline, and the other end of B pipeline is connected between the 3rd hand stop valve 7 and the second Pressure gauge 8 on A pipeline.
Described cavitation Venturi tube 6 is for controlling and regulate the element of fluid flow in liquid line, in it, profile is convergence-expansion profile with venturi, middle part is venturi, and venturi both sides are bell-mouth structure of air, and described venturi connects less one end of diameter in two bell-mouth structure of airs.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. large flow quota of fuel adjusting device for burning under a hyperbaric environment, it is characterized in that: described device comprises: the first hand stop valve (1), flowmeter (2), the first Pressure gauge (3), proportioning valve (4), cavitation Venturi tube (6), the second hand stop valve (5), the 3rd hand stop valve (7), the second Pressure gauge (8), choke valve (9), and corresponding feeding pipe; Described feeding pipe is divided into A pipeline and B pipeline, wherein A pipeline one end is connected with fuel supply device, the other end is connected with test bay engine, is provided with successively the first hand stop valve (1), flowmeter (2), the first Pressure gauge (3), cavitation Venturi tube (6), the 3rd hand stop valve (7), the second Pressure gauge (8) and choke valve (9) by charging order on A pipeline; On B pipeline, be provided with proportioning valve (4) and the second hand stop valve (5), one end of B pipeline is connected between the first Pressure gauge (3) and cavitation Venturi tube (6) on A pipeline, and the other end of B pipeline is connected between the 3rd hand stop valve (7) and the second Pressure gauge (8) on A pipeline.
2. under a kind of hyperbaric environment according to claim 1, burning, by large flow quota of fuel adjusting device, is characterized in that: the interior profile of described cavitation Venturi tube (6) is convergence-expansion profile with venturi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631574.4A CN103672946B (en) | 2013-11-28 | 2013-11-28 | Burning large discharge quota of fuel regulating device under a kind of hyperbaric environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631574.4A CN103672946B (en) | 2013-11-28 | 2013-11-28 | Burning large discharge quota of fuel regulating device under a kind of hyperbaric environment |
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| Publication Number | Publication Date |
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| CN103672946A true CN103672946A (en) | 2014-03-26 |
| CN103672946B CN103672946B (en) | 2015-11-25 |
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| CN201310631574.4A Active CN103672946B (en) | 2013-11-28 | 2013-11-28 | Burning large discharge quota of fuel regulating device under a kind of hyperbaric environment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018703A (en) * | 2016-06-30 | 2016-10-12 | 力合科技（湖南）股份有限公司 | Flue gas analysis system and method |
| CN109238382A (en) * | 2018-10-26 | 2019-01-18 | 北京动力机械研究所 | The fuel flow calculation method of adjustable turbine pump oil supply system |
| CN111720849A (en) * | 2020-06-04 | 2020-09-29 | 西安航天动力试验技术研究所 | Fuel multi-working-condition accurate supply system of fuel gas generator and operation method thereof |
| CN112594065A (en) * | 2020-12-07 | 2021-04-02 | 中国航发沈阳发动机研究所 | Gas fuel conditioning system for gas turbine engine and method of designing same |
| CN113110622A (en) * | 2021-05-21 | 2021-07-13 | 北京航空航天大学 | Cavitation venturi |
| CN113431706A (en) * | 2021-06-30 | 2021-09-24 | 湖北航天技术研究院总体设计所 | Venturi tube combination device and system for liquid engine and operation method of venturi tube combination device |
| CN114275169A (en) * | 2021-12-28 | 2022-04-05 | 北京动力机械研究所 | Low-boiling-point working medium pressurization supply system and supply method |
| CN116498896A (en) * | 2023-06-27 | 2023-07-28 | 中国空气动力研究与发展中心超高速空气动力研究所 | Fuel supply system of hypersonic high-temperature wind tunnel and design method thereof |
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| US3894562A (en) * | 1973-12-20 | 1975-07-15 | Jr Charles D Moseley | Fluid flow controller |
| JPH11173214A (en) * | 1997-12-11 | 1999-06-29 | Mitsubishi Heavy Ind Ltd | Burning type thrust generating device |
| CN103089488A (en) * | 2013-01-21 | 2013-05-08 | 北京航空航天大学 | Adjustable cavitation venturi tube for high concentration hydrogen peroxide |
| CN103234761A (en) * | 2013-04-12 | 2013-08-07 | 北京航空航天大学 | Mobile test platform for low-thrust rocket engines |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018703A (en) * | 2016-06-30 | 2016-10-12 | 力合科技（湖南）股份有限公司 | Flue gas analysis system and method |
| CN109238382A (en) * | 2018-10-26 | 2019-01-18 | 北京动力机械研究所 | The fuel flow calculation method of adjustable turbine pump oil supply system |
| CN109238382B (en) * | 2018-10-26 | 2020-02-14 | 北京动力机械研究所 | Fuel flow calculating method of adjustable turbine pump oil supply system |
| CN111720849A (en) * | 2020-06-04 | 2020-09-29 | 西安航天动力试验技术研究所 | Fuel multi-working-condition accurate supply system of fuel gas generator and operation method thereof |
| CN111720849B (en) * | 2020-06-04 | 2022-10-28 | 西安航天动力试验技术研究所 | Fuel multi-working-condition accurate supply system of fuel gas generator and operation method thereof |
| CN112594065A (en) * | 2020-12-07 | 2021-04-02 | 中国航发沈阳发动机研究所 | Gas fuel conditioning system for gas turbine engine and method of designing same |
| CN113110622A (en) * | 2021-05-21 | 2021-07-13 | 北京航空航天大学 | Cavitation venturi |
| CN113110622B (en) * | 2021-05-21 | 2022-07-22 | 北京航空航天大学 | Cavitation venturi |
| CN113431706A (en) * | 2021-06-30 | 2021-09-24 | 湖北航天技术研究院总体设计所 | Venturi tube combination device and system for liquid engine and operation method of venturi tube combination device |
| CN114275169A (en) * | 2021-12-28 | 2022-04-05 | 北京动力机械研究所 | Low-boiling-point working medium pressurization supply system and supply method |
| CN116498896A (en) * | 2023-06-27 | 2023-07-28 | 中国空气动力研究与发展中心超高速空气动力研究所 | Fuel supply system of hypersonic high-temperature wind tunnel and design method thereof |
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| Publication number | Publication date |
|---|---|
| CN103672946B (en) | 2015-11-25 |
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