CN108375475A - A kind of engine gas injection experiment helium supply air distribution system - Google Patents
A kind of engine gas injection experiment helium supply air distribution system Download PDFInfo
- Publication number
- CN108375475A CN108375475A CN201810059715.2A CN201810059715A CN108375475A CN 108375475 A CN108375475 A CN 108375475A CN 201810059715 A CN201810059715 A CN 201810059715A CN 108375475 A CN108375475 A CN 108375475A
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- China
- Prior art keywords
- air distribution
- distribution system
- helium
- gas injection
- collecting tube
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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
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Present invention relates particularly to a kind of engine gas injection experiment helium to supply air distribution system, solves the problem of not accurately controlling helium gas flow without helium air distribution system in existing engine propellant feed system.Air distribution system includes multiple helium tanks, gas collecting tube, liquid oxygen air distribution system and kerosene air distribution system；The outlet of the helium tank is accessed by shut-off valve in gas collecting tube；Liquid oxygen air distribution system and kerosene air distribution system access in gas collecting tube, and liquid oxygen air distribution system and kerosene air distribution system include shut-off valve, filter, pressure reducer, solenoid valve one, velocity of sound orifice plate and the solenoid valve two being successively set on helium escape pipe.This system, which can be realized, accurately controls liquid oxygen road and kerosene road helium gas injection rate, gas injection fast response time, and is not influenced by pump front tube pressure change.
Description
Technical field
Present invention relates particularly to a kind of engine gas injection experiment helium to supply air distribution system.
Background technology
There are larger pulsation in existing oxygen kerosene engine propellant feed system, are learnt by experiment, inject
A small amount of helium has apparent inhibiting effect to this pulsation；But without helium in existing engine propellant feed system
Gas air distribution system can not accurately control helium gas flow, and during distribution, if the helium of injection is excessive, turbine pump will
There are the risks of cavitation erosion；If the helium of injection is very few, inhibiting effect of the helium to pulsation can not achieve.Therefore, in order to helium
Throughput is accurately controlled, and the air distribution system of a set of accurate fast supply helium need to be established.
Invention content
Present invention aim to address in available engine propellant feed system without helium air distribution system, can not be to helium
The problem of flow is accurately controlled provides a kind of engine gas injection experiment helium and supplies air distribution system, it can be achieved that liquid oxygen road
With accurately controlling for kerosene road helium gas injection rate, gas injection fast response time, and not by pump front tube pressure change influenced.
The technical scheme is that：
A kind of engine gas injection experiment helium supply air distribution system, including multiple helium tanks, gas collecting tube, liquid oxygen air distribution system
With kerosene air distribution system；The outlet of the helium tank is accessed by shut-off valve in gas collecting tube；The liquid oxygen air distribution system and kerosene
Air distribution system accesses in gas collecting tube, and the liquid oxygen air distribution system and kerosene air distribution system include being successively set on helium outlet
Shut-off valve, filter, pressure reducer, solenoid valve one, velocity of sound orifice plate on pipe and solenoid valve two.
Further, it is additionally provided with vent valve between the pressure reducer and solenoid valve one, it can be to the gas in helium escape pipe
Body is discharged completely.
Further, it is additionally provided with pressure gauge and vent valve on the gas collecting tube, the pressure on gas collecting tube is carried out real-time
It monitors and emptying operation is carried out to the gas in gas collecting tube.
Further, the helium tank is 40L helium tanks.
Further, the caliber of the gas collecting tube is DN20, pressure rating PN230.
Further, the caliber of the helium escape pipe is DN15, pressure rating PN16.
Advantages of the present invention is：
Liquid oxygen road and kerosene road helium gas injection rate are accurately controlled 1. the present invention can be realized by velocity of sound orifice plate, gas injection is rung
Answer speed fast.
2. the air distribution system of the present invention is compact in structure and convenient to use, precision is high, is applicable to the different small flow helium of occasion
Accurate supply.
3. the present invention meets engine gas injection experiment by the selection of the adjustment and velocity of sound orifice plate aperture of reducer pressure
The requirement of helium gas flow, stability and filling velocity.
4. present system selects velocity of sound orifice plate as current-limiting apparatus, so that flow is not influenced by outlet back pressure variation, protect
Demonstrate,prove the continual and steady supply of helium.
5. being respectively provided with solenoid valve before and after velocity of sound orifice plate in present system, the pipeline before and after velocity of sound orifice plate is filled,
Improve the filling velocity that helium is supplied under tiny flow quantity.
6. the present invention be additionally provided with vent valve between pressure reducer and solenoid valve one, can to the gas in helium escape pipe into
The complete emissions operation of row.
Description of the drawings
Fig. 1 is the structural schematic diagram of air distribution system of the present invention.
Reference numeral：1- helium tanks, 2- gas collecting tubes, 3- liquid oxygen air distribution systems, 4- kerosene air distribution systems, 5- shut-off valves, 6-
Filter, 7- shut-off valves, 8- pressure reducers, 9- solenoid valves one, 10- velocity of sound orifice plates, 11- solenoid valves two, 12- vent valves, 13- pressure
Table, 14- vent valves.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described with reference to the accompanying drawings of the specification.
A kind of engine gas injection experiment helium as shown in Figure 1 supplies air distribution system, including multiple helium tanks 1, gas collecting tube
2, liquid oxygen air distribution system 3 and kerosene air distribution system 4；The outlet of helium tank 1 is accessed by shut-off valve 5 in gas collecting tube 2；Liquid oxygen distribution
System 3 and kerosene air distribution system 4 access in gas collecting tube 2, and liquid oxygen air distribution system 3 and kerosene air distribution system 4 include setting successively
Set shut-off valve 7, filter 6, pressure reducer 8, solenoid valve 1, velocity of sound orifice plate 10 and solenoid valve 2 11 on helium escape pipe.
The present invention is additionally provided with vent valve 12 between pressure reducer 8 and solenoid valve 1, can be to the gas in helium escape pipe
It is discharged completely.
It includes two helium tanks 1, gas collecting tube 2, liquid oxygen distribution that helium supply air distribution system is tested in inventive engine gas injection
System 3 and kerosene air distribution system 4；In order to simplify system, liquid oxygen air distribution system 3 and kerosene air distribution system 4 are integrated into one and matched
On gas platform；It is additionally provided with pressure gauge 13 and vent valve 14 on gas collecting tube 2, the pressure progress on gas collecting tube 2 is monitored in real time and right
Gas in gas collecting tube 2 carries out emptying operation.
Present system uses common 40L helium tanks as air source, and the caliber of the gas collecting tube used is DN20, pressure etc.
Grade is PN230；The caliber of the helium escape pipe used is DN15, pressure rating PN16.Helium tank 1 is accessed into distribution platform gas collection
On pipe 2, two-way is divided into from gas collecting tube 2, the helium supply of liquid oxygen road is provided all the way, the helium supply of kerosene road is provided all the way.Liquid oxygen
It is identical with coal asphalt principle, it is illustrated by taking liquid oxygen road as an example, the gas come out from gas collecting tube 2 is after shut-off valve 7 and filter 6
Before reaching pressure reducer 8, the pressure of helium is controlled by pressure reducer 8, two solenoid valves of setting after pressure reducer 8, two
Setting velocity of sound orifice plate 10 among solenoid valve.
The present invention selects velocity of sound orifice plate 10 as current-limiting apparatus, and flow is made not influenced by outlet back pressure variation.It is testing
It is preceding that velocity of sound orifice plate 10 is calibrated by mass flowmenter, the accurate discharge coefficient of orifice plate is obtained, to by pressure reducer 8
Pressure accurately controls afterwards, and realization accurately controls helium gas flow.Solenoid valve is respectively provided with before and after velocity of sound orifice plate 10, first to velocity of sound
Pipeline before and after orifice plate 10 is filled, and the filling velocity that helium is supplied under tiny flow quantity is improved.
The present invention meets engine gas injection experiment helium by the selection of adjustment and orifice plate aperture to 8 pressure of pressure reducer
The requirement of throughput, stability and filling velocity.
Claims (6)
1. a kind of engine gas injection experiment helium supplies air distribution system, it is characterised in that：Including multiple helium tanks (1), gas collecting tube
(2), liquid oxygen air distribution system (3) and kerosene air distribution system (4)；
The outlet of the helium tank (1) is accessed by shut-off valve (5) in gas collecting tube (2)；
The liquid oxygen air distribution system (3) and kerosene air distribution system (4) access in gas collecting tube (2),
The liquid oxygen air distribution system (3) and kerosene air distribution system (4) include the shut-off valve being successively set on helium escape pipe
(7), filter (6), pressure reducer (8), solenoid valve one (9), velocity of sound orifice plate (10) and solenoid valve two (11).
2. engine gas injection experiment helium according to claim 1 supplies air distribution system, it is characterised in that：The pressure reducer
(8) vent valve (12) is additionally provided between solenoid valve one (9).
3. engine gas injection experiment helium according to claim 2 supplies air distribution system, it is characterised in that：The gas collecting tube
(2) pressure gauge (13) and vent valve (14) are additionally provided on.
4. engine gas injection experiment helium according to claim 1 or 2 or 3 supplies air distribution system, it is characterised in that：It is described
Helium tank (1) is 40L helium tanks.
5. engine gas injection experiment helium according to claim 4 supplies air distribution system, it is characterised in that：The gas collecting tube
(2) caliber is DN20, pressure rating PN230.
6. engine gas injection experiment helium according to claim 5 supplies air distribution system, it is characterised in that：The helium goes out
The caliber of tracheae is DN15, pressure rating PN16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059715.2A CN108375475B (en) | 2018-01-22 | 2018-01-22 | Helium supply and distribution system for engine gas injection test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810059715.2A CN108375475B (en) | 2018-01-22 | 2018-01-22 | Helium supply and distribution system for engine gas injection test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108375475A true CN108375475A (en) | 2018-08-07 |
| CN108375475B CN108375475B (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810059715.2A Active CN108375475B (en) | 2018-01-22 | 2018-01-22 | Helium supply and distribution system for engine gas injection test |
Country Status (1)
| Country | Link |
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| CN (1) | CN108375475B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439591A (en) * | 2019-01-17 | 2020-07-24 | 北京润泽云成环保科技有限公司 | Pneumatic conveying pipeline gas distribution system |
| CN111810319A (en) * | 2020-07-07 | 2020-10-23 | 西安航天动力试验技术研究所 | Rocket engine low-frequency pulsation suppression device containing gas-liquid separation and discharge system |
| CN113188379A (en) * | 2021-05-14 | 2021-07-30 | 北京宇航系统工程研究所 | Low-temperature carrier rocket cabin section environment temperature control gas blowing system |
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| EP2710248A2 (en) * | 2011-05-17 | 2014-03-26 | Snecma | Power supply system and method for eliminating the pogo effect |
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| CN105604738A (en) * | 2015-12-30 | 2016-05-25 | 西安航天动力试验技术研究所 | Liquid oxygen/kerosene engine test gas supply system |
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| EP2710248A2 (en) * | 2011-05-17 | 2014-03-26 | Snecma | Power supply system and method for eliminating the pogo effect |
| CN104748970A (en) * | 2015-03-31 | 2015-07-01 | 北京航空航天大学 | Gas testing system suitable for tests of low-thrust engine |
| CN105604738A (en) * | 2015-12-30 | 2016-05-25 | 西安航天动力试验技术研究所 | Liquid oxygen/kerosene engine test gas supply system |
| CN205618971U (en) * | 2015-12-31 | 2016-10-05 | 西安航天动力试验技术研究所 | Liquid oxygen kerosene engine ground test subcooling liquid oxygen supply system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439591A (en) * | 2019-01-17 | 2020-07-24 | 北京润泽云成环保科技有限公司 | Pneumatic conveying pipeline gas distribution system |
| CN111810319A (en) * | 2020-07-07 | 2020-10-23 | 西安航天动力试验技术研究所 | Rocket engine low-frequency pulsation suppression device containing gas-liquid separation and discharge system |
| CN111810319B (en) * | 2020-07-07 | 2021-09-10 | 西安航天动力试验技术研究所 | Rocket engine low-frequency pulsation suppression device containing gas-liquid separation and discharge system |
| CN113188379A (en) * | 2021-05-14 | 2021-07-30 | 北京宇航系统工程研究所 | Low-temperature carrier rocket cabin section environment temperature control gas blowing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108375475B (en) | 2020-12-11 |
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