CN112610363B - Full-flow afterburning cycle engine oxygen-enriched semi-system hot test device and hot test method - Google Patents
Full-flow afterburning cycle engine oxygen-enriched semi-system hot test device and hot test method Download PDFInfo
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- CN112610363B CN112610363B CN202011509909.1A CN202011509909A CN112610363B CN 112610363 B CN112610363 B CN 112610363B CN 202011509909 A CN202011509909 A CN 202011509909A CN 112610363 B CN112610363 B CN 112610363B
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- oxygen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/96—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by specially adapted arrangements for testing or measuring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
- F02K9/56—Control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
- F02K9/56—Control
- F02K9/58—Propellant feed valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/95—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by starting or ignition means or arrangements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
Abstract
The invention provides a full-flow afterburning cycle engine oxygen-enriched half system hot test device and a hot test method, and aims to solve the technical problem that an oxygen-enriched half system hot test component cannot be provided with a fuel pump for supplying fuel to an oxygen-enriched fuel generator, so that the oxygen-enriched half system hot test cannot be carried out. The invention supplies low-pressure oxidant and high-pressure fuel to the oxygen-enriched gas generator in the oxygen-enriched semi-system heat test device by the test bed, and can realize the oxygen-enriched semi-system heat test of the full-flow afterburning cycle engine by using a simpler system configuration scheme.
Description
Technical Field
The invention relates to a full-flow afterburning cycle engine oxygen-enriched semi-system hot test device and a hot test method.
Background
In the design process of the liquid rocket engine, a verification test generally follows the sequence of component level-half system level-full system level thermal test, and the half system level thermal test can be used for examining the combined work of the gas generator and the turbopump. The full-flow afterburning cycle engine mainly comprises an oxygen-enriched half system and an oxygen-enriched half system, when the oxygen-enriched half system is subjected to a heat test, a fuel pump belonging to the oxygen-enriched half system cannot be configured, while a fuel pump and an oxygen pump in the existing oxygen-enriched afterburning cycle engine half system heat test device belong to a main turbine pump, and the design method of the half system heat test device cannot be used for the full-flow afterburning cycle engine, so that the oxygen-enriched half system heat test cannot be directly carried out.
Disclosure of Invention
The invention provides a full-flow afterburning cycle engine oxygen-enriched half system hot test device and a hot test method, and aims to solve the technical problem that an oxygen-enriched half system hot test component cannot be provided with a fuel pump for supplying fuel to an oxygen-enriched fuel generator, so that the oxygen-enriched half system hot test cannot be carried out.
The technical scheme of the invention is as follows:
the full-flow afterburning cycle engine oxygen-enriched semi-system thermal test device is characterized in that: the system comprises an engine fuel inlet conduit, an engine oxidant inlet conduit, an ignition device, an oxygen-enriched fuel gas generator, an oxidant turbopump consisting of a turbine and an oxygen pump, and a process spray pipe;
the inlet of the engine fuel inlet conduit is connected with the outlet of the test bed fuel supply system, and the outlet of the engine fuel inlet conduit is connected with the fuel inlet of the oxygen-enriched fuel generator through a first pipeline;
the inlet of the engine oxidant inlet conduit is connected with the outlet of the test bed oxidant supply system, the outlet of the engine oxidant inlet conduit is connected with the inlet of the oxygen pump through a second pipeline, and the outlet of the oxygen pump is connected with the oxidant inlet of the oxygen-enriched fuel gas generator through a third pipeline;
a flow regulator and a fuel valve are sequentially arranged on the first pipeline; an oxygen valve is arranged on the third pipeline;
the fuel valve and the oxygen valve are three-way valves; the inlet of the fuel valve is connected with the outlet of the flow regulator, one outlet of the fuel valve is connected with the fuel inlet of the oxygen-enriched fuel gas generator, the other outlet of the fuel valve is connected with the fuel precooling discharge pipeline, and the switching between the fuel supply pipeline and the fuel precooling discharge pipeline of the oxygen-enriched fuel gas generator can be realized by controlling the fuel valve; the inlet of the oxygen valve is connected with the outlet of the oxygen pump, one outlet of the oxygen valve is connected with the oxidant inlet of the oxygen-enriched fuel gas generator, the other outlet of the oxygen valve is connected with the oxidant precooling discharge path, and the switching between the oxidant supply path and the oxidant precooling discharge path of the oxygen-enriched fuel gas generator can be realized by controlling the oxygen valve;
the output shaft of the turbine is connected with the input shaft of the oxygen pump, and the outlet of the turbine is connected with the inlet of the process spray pipe through a fourth pipeline;
the firing end of the ignition device is inserted into the oxygen-rich gas generator for igniting the oxidant and fuel in the oxygen-rich gas generator.
The invention also provides a full-flow afterburning cycle engine oxygen-enriched half-system hot test method based on the full-flow afterburning cycle engine oxygen-enriched half-system hot test device, which comprises the following steps:
1) precooling discharge
Switching a fuel valve to a fuel precooling discharge path, switching an oxygen valve to an oxidant precooling discharge path, supplying a test bed fuel supply system at a low pressure, supplying the test bed oxidant supply system at a low pressure, precooling a fuel supply path between an engine fuel inlet conduit and the fuel valve and an oxidant supply path between the engine oxidant inlet conduit and the oxygen valve, wherein a flow regulator is not adjusted;
2) high pressure supply
The test bed fuel supply system is switched to a high-pressure supply state, the flow regulator is in a starting state at the moment, and the flow of the route is controlled by the flow regulator;
3) opening the valve
Opening an oxygen valve and a fuel valve in sequence according to a time sequence, and enabling an oxidant and fuel to enter an oxygen-rich fuel gas generator in sequence and be ignited by an ignition device;
4) working condition transition
The flow regulator is switched to make the flow of the fuel supply path meet the requirement of a half-system test, and the oxygen-enriched half-system thermal test device enters a half-system test working condition;
5) end of the test
And after the test is finished, closing the fuel valve and the oxygen valve in sequence according to the time sequence.
The invention has the advantages that:
1. the invention provides an oxygen-enriched semi-system thermal test device for a full-flow afterburning cycle engine, wherein a test bed supplies a low-pressure oxidant and a high-pressure fuel to the oxygen-enriched semi-system thermal test device, and the oxygen-enriched semi-system thermal test of the full-flow afterburning cycle engine can be realized by using a simpler system configuration scheme.
2. The flow regulator is arranged in the oxygen-enriched semi-system thermal test device, so that the controllable flow in the ignition process and the working condition transition process is ensured.
3. The method can be applied to the full-flow afterburning cycle engine oxygen enrichment half-system heat test of different propellant combinations, and can be popularized and applied to the full-flow afterburning cycle engine oxygen enrichment half-system heat test.
Drawings
Fig. 1 is a schematic diagram of the principle of the present invention.
Description of reference numerals:
1-a first pipeline; 2-a second pipeline; 3-a third pipeline; 4-a fourth pipeline; 5-flow regulating valve; 6-a fuel valve; 7-oxygen valve.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in FIG. 1, the oxygen-enriched semi-system hot test device of the full-flow afterburning cycle engine provided by the invention comprises an engine fuel inlet duct, an engine oxidant inlet duct, an ignition device, an oxygen-enriched gas generator, an oxidant turbopump consisting of a turbine and an oxygen pump, and a process spray pipe;
the inlet of the engine fuel inlet conduit is connected with the outlet of the test bed fuel supply system, and the outlet of the engine fuel inlet conduit is connected with the fuel inlet of the oxygen-enriched fuel gas generator through a first pipeline 1;
the inlet of an engine oxidant inlet conduit is connected with the outlet of the test bed oxidant supply system, the outlet of the engine oxidant inlet conduit is connected with the inlet of an oxygen pump through a second pipeline 2, and the outlet of the oxygen pump is connected with the oxidant inlet of an oxygen-enriched fuel gas generator through a third pipeline 3;
a flow regulator and a fuel valve are sequentially arranged on the first pipeline 1; an oxygen valve is arranged on the third pipeline 3;
the fuel valve 6 and the oxygen valve 7 are three-way valves; the inlet of the fuel valve 6 is connected with the outlet of the flow regulator 5, one outlet of the fuel valve 6 is connected with the fuel inlet of the oxygen-enriched gas generator, the other outlet of the fuel valve 6 is connected with a fuel precooling discharge pipeline, and the fuel supply pipeline and the fuel precooling discharge pipeline of the oxygen-enriched gas generator can be switched by controlling the fuel valve 6; an inlet of the oxygen valve 7 is connected with an outlet of the oxygen pump, one outlet of the oxygen valve 7 is connected with an oxidant inlet of the oxygen-enriched fuel gas generator, the other outlet of the oxygen valve 7 is connected with an oxidant precooling discharge path, and the oxygen valve 7 is controlled to realize the switching between an oxidant supply path and the oxidant precooling discharge path of the oxygen-enriched fuel gas generator;
the output shaft of the turbine is connected with the input shaft of the oxygen pump, and the outlet of the turbine is connected with the inlet of the process spray pipe through a fourth pipeline 4;
the ignition end of the ignition device is inserted into the oxygen-rich fuel gas generator and is used for igniting oxidant and fuel in the oxygen-rich fuel gas generator;
when the semi-system thermal test is carried out by using the device, the oxidant used by the oxygen-enriched fuel gas generator is supplied by the test bed oxidant supply system at low pressure, and then enters the oxidant inlet of the oxygen-enriched fuel gas generator through the pressurization of the oxygen pump; the fuel used by the oxygen-enriched fuel generator is supplied by a test bed fuel supply system under high pressure, and the high-pressure fuel enters the fuel inlet of the oxygen-enriched fuel generator after sequentially passing through the engine fuel inlet guide pipe, the flow regulator and the fuel valve.
The process of carrying out the full-flow afterburning cycle engine oxygen-enriched semi-system thermal test by using the invention is as follows:
1) precooling discharge
Switching a fuel valve 6 to a fuel precooling discharge path, switching an oxygen valve 7 to an oxidant precooling discharge path, pre-cooling a fuel supply path between an engine fuel inlet conduit and the fuel valve 6 and an oxidant supply path between the engine oxidant inlet conduit and the oxygen valve 7, wherein the test bed fuel supply system supplies low pressure and the test bed oxidant supply system supplies low pressure, and the flow regulator 5 is not adjusted (the flow is not controlled) in the process;
2) high pressure supply
The test bed fuel supply system is switched to a high-pressure supply state, the flow regulator 5 is in a starting state at the moment, and the route flow is controlled by the flow regulator;
3) opening the valve
Opening an oxygen valve 7 and a fuel valve 6 in sequence according to time sequence, and enabling an oxidant and fuel to enter an oxygen-enriched fuel gas generator in sequence and be ignited by an ignition device;
4) working condition transition
The flow regulator 5 is shifted (increased) to ensure that the flow of the fuel supply path meets the requirement of a half-system test, and the oxygen-enriched half-system thermal test device enters a half-system test working condition;
5) end of the test
After the test is finished, the fuel valve 6 and the oxygen valve 7 are closed in sequence in time series.
Claims (2)
1. Full flow afterburning cycle engine oxygen boosting semi-system heat is tried on clothes and is put its characterized in that: the system comprises an engine fuel inlet conduit, an engine oxidant inlet conduit, an ignition device, an oxygen-enriched fuel gas generator, an oxidant turbopump consisting of a turbine and an oxygen pump, and a process spray pipe;
the inlet of the engine fuel inlet conduit is connected with the outlet of the test bed fuel supply system, and the outlet of the engine fuel inlet conduit is connected with the fuel inlet of the oxygen-enriched gas generator through a first pipeline (1);
the inlet of an engine oxidant inlet conduit is connected with the outlet of the test bed oxidant supply system, the outlet of the engine oxidant inlet conduit is connected with the inlet of an oxygen pump through a second pipeline (2), and the outlet of the oxygen pump is connected with the oxidant inlet of the oxygen-enriched gas generator through a third pipeline (3);
a flow regulator (5) and a fuel valve (6) are sequentially arranged on the first pipeline (1); an oxygen valve is arranged on the third pipeline (3);
the fuel valve (6) and the oxygen valve (7) are three-way valves; the inlet of the fuel valve (6) is connected with the outlet of the flow regulator, one outlet of the fuel valve (6) is connected with the fuel inlet of the oxygen-enriched fuel gas generator, the other outlet of the fuel valve (6) is connected with a fuel precooling discharge pipeline, and the fuel supply pipeline and the fuel precooling discharge pipeline of the oxygen-enriched fuel gas generator can be switched by controlling the fuel valve (6); an inlet of the oxygen valve (7) is connected with an outlet of the oxygen pump, one outlet of the oxygen valve (7) is connected with an oxidant inlet of the oxygen-enriched fuel gas generator, the other outlet of the oxygen valve (7) is connected with an oxidant precooling discharge path, and the oxygen valve (7) is controlled to realize the switching between the oxidant supply path and the oxidant precooling discharge path of the oxygen-enriched fuel gas generator;
the output shaft of the turbine is connected with the input shaft of the oxygen pump, and the outlet of the turbine is connected with the inlet of the process spray pipe through a fourth pipeline (4);
the firing end of the ignition device is inserted into the oxygen-rich gas generator for igniting the oxidant and fuel in the oxygen-rich gas generator.
2. The full-flow afterburning cycle engine oxygen-enriched half system hot test method of the full-flow afterburning cycle engine oxygen-enriched half system hot test device based on claim 1, is characterized by comprising the following steps:
1) precooling discharge
Switching a fuel valve (6) to a fuel precooling discharge path, switching an oxygen valve (7) to an oxidant precooling discharge path, supplying a test bed fuel supply system at a low pressure, supplying the test bed oxidant supply system at a low pressure, precooling a fuel supply path between an engine fuel inlet conduit and the fuel valve (6) and an oxidant supply path between the engine oxidant inlet conduit and the oxygen valve (7), wherein the flow regulator (5) is not adjusted in the process;
2) high pressure supply
The test bed fuel supply system is switched to a high-pressure supply state, the flow regulator (5) is in a starting state, and the flow of a fuel supply path between the engine fuel inlet guide pipe and the fuel valve (6) is controlled by the flow regulator;
3) opening the valve
Opening an oxygen valve (7) and a fuel valve (6) in sequence according to time sequence, and enabling an oxidant and fuel to enter an oxygen-enriched fuel gas generator in sequence and be ignited by an ignition device;
4) working condition transition
The flow regulator (5) is shifted to ensure that the flow of the fuel supply path meets the requirement of a half-system test, and the oxygen-enriched half-system thermal test device enters a half-system test working condition;
5) end of the test
After the test is finished, the fuel valve (6) and the oxygen valve (7) are closed in sequence according to time sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011509909.1A CN112610363B (en) | 2020-12-18 | 2020-12-18 | Full-flow afterburning cycle engine oxygen-enriched semi-system hot test device and hot test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011509909.1A CN112610363B (en) | 2020-12-18 | 2020-12-18 | Full-flow afterburning cycle engine oxygen-enriched semi-system hot test device and hot test method |
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| CN112610363A CN112610363A (en) | 2021-04-06 |
| CN112610363B true CN112610363B (en) | 2021-11-16 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5396793A (en) * | 1993-09-17 | 1995-03-14 | United Technologies Corporation | Altitude gas turbine engine test cell |
| EP1533511A1 (en) * | 2003-11-18 | 2005-05-25 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Process for igniting a rocket engine and rocket engine |
| CN108953003A (en) * | 2018-06-28 | 2018-12-07 | 西安航天动力研究所 | A kind of promoted using oxygen rich fuel gas realizes afterburning cycle engine system and thrust depth adjustment method |
| CN110645102A (en) * | 2019-09-24 | 2020-01-03 | 北京航天动力研究所 | High-pressure gas collecting and stabilizing device and method suitable for afterburning circulating rocket engine |
| CN111502865A (en) * | 2020-04-16 | 2020-08-07 | 西安航天动力研究所 | Test run method of open-cycle liquid oxygen kerosene engine system |
| CN111963337A (en) * | 2020-08-21 | 2020-11-20 | 西安航天动力研究所 | Direct connection hot test system and hot test method for oxygen-enriched afterburning engine thrust chamber |
-
2020
- 2020-12-18 CN CN202011509909.1A patent/CN112610363B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5396793A (en) * | 1993-09-17 | 1995-03-14 | United Technologies Corporation | Altitude gas turbine engine test cell |
| EP1533511A1 (en) * | 2003-11-18 | 2005-05-25 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Process for igniting a rocket engine and rocket engine |
| CN108953003A (en) * | 2018-06-28 | 2018-12-07 | 西安航天动力研究所 | A kind of promoted using oxygen rich fuel gas realizes afterburning cycle engine system and thrust depth adjustment method |
| CN110645102A (en) * | 2019-09-24 | 2020-01-03 | 北京航天动力研究所 | High-pressure gas collecting and stabilizing device and method suitable for afterburning circulating rocket engine |
| CN111502865A (en) * | 2020-04-16 | 2020-08-07 | 西安航天动力研究所 | Test run method of open-cycle liquid oxygen kerosene engine system |
| CN111963337A (en) * | 2020-08-21 | 2020-11-20 | 西安航天动力研究所 | Direct connection hot test system and hot test method for oxygen-enriched afterburning engine thrust chamber |
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| CN112610363A (en) | 2021-04-06 |
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