CN1687661A - Kerosene heating system for supersonics burning test bed - Google Patents
Kerosene heating system for supersonics burning test bed Download PDFInfo
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- CN1687661A CN1687661A CN 200510068036 CN200510068036A CN1687661A CN 1687661 A CN1687661 A CN 1687661A CN 200510068036 CN200510068036 CN 200510068036 CN 200510068036 A CN200510068036 A CN 200510068036A CN 1687661 A CN1687661 A CN 1687661A
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- well heater
- kerosene
- heating system
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- thermopair
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Abstract
The invention discloses a kerosene heating system for hypersonic combustion test-bed use. It is characterized in that the system comprises the primary heater and the secondary heater connecting the combustion chamber, and the primary and the secondary heaters are linked by the pipeline and the valves are set on the pipeline and between the combustion chamber and the secondary heater. The invention adopts the second-level heating to shorten the time that the kerosene is in the high temperature state and makes the kerosene split quickly in flowing state and greatly reduces the gathering and depositing of the coal.
Description
Technical field
The present invention relates to a kind of kerosene heating system that is used for the Supersonic combustion tests platform.
Background technology
The supersonic speed engine acts as a fuel with liquid hydrocarbon.For avoiding engine chamber to burn in operational process, the liquid fuel before the spray often is used as cooling medium and absorbs the combustion chamber wall surface heat, and what therefore reality was injected the firing chamber is heated fuel.The kerosene that is heated to above-critical state enters behind the firing chamber direct gasification.If kerosene is heated to above cracking temperature, cracking can take place in the macromolecular hydrocarbon in the kerosene, and suitable catalyzer can quicken cracking process.For not heating kerosene, above-critical state kerosene or cracking kerosene can make the runnability of engine obviously be optimized.When kerosene is heated above cracking temperature, polycomponent will be thermally cracked to and be the less hydrocarbon of molecular weight in the kerosene, be accompanied by cracking process and occur tying charcoal inevitably.If the knot charcoal exists with the particulate of free shape, the part that it will act as a fuel can not make troubles to well heater and transport system along with cracking kerosene enters the firing chamber; But if the knot carbon particle is gathered into floccus, or be deposited in well heater or the system, form stratiform or blocks of solid, or form highly viscous liquid material with kerosene, to cause problems such as oil hole obstruction, faulty sensor, valve seal inefficacy, system can not effectively be turned round, will cause the local obstruction of pipeline and well heater when serious, cause serious accident.
Summary of the invention
At above-mentioned present situation, the object of the present invention is to provide a kind ofly to make that kerosene is rapidly heated, cracking under flow state, assemble the kerosene heating system that is used for the Supersonic combustion tests platform with deposition thereby effectively avoid tying charcoal.
For achieving the above object, technical solution of the present invention is:
A kind of kerosene heating system that is used for the Supersonic combustion tests platform, the secondary well heater that this system comprises the one-level well heater, links to each other with the firing chamber, be connected by pipeline between this one-level well heater and the secondary well heater, be provided with valve between on this pipeline and firing chamber and the secondary well heater.
Further, described one-level well heater comprises spiral pipe and the heating tape that is coated on the spiral pipe, and described one-level well heater is provided with thermopair, and this heating tape is connected power supply by the temperature controller that is connected with this thermopair.
Further, the spiral pipe of described secondary well heater for making by resistance material.
Further, described secondary well heater is provided with thermopair, and described spiral pipe is connected power supply by the temperature controller that is connected with this thermopair.
Further, described spiral pipe is high nickel heat-resisting steel.
Further, be provided with some heat-resisting tubules in the described spiral pipe, this heat-resisting tubule is high nickel heat-resisting steel.
Further, described valve is electricity-air valve, and the thermopair on described pressure transducer and the described one-level well heater, the thermopair on the secondary well heater all are connected with computing machine, and this computing machine is connected with described electricity-air valve.
Further, be provided with dual security system on described one-level well heater and the secondary well heater.
Further, described first order safety feature is the safety valve that has condenser, and second level safety feature is by electro connecting pressure gauge, be made up of the electricity-air valve of electro connecting pressure gauge control and the condenser that is arranged at this electricity-air valve downstream.
Further, described secondary well heater is provided with the double rinse system, this double rinse system comprises elevated pressure nitrogen source of the gas, source of high pressure air and is arranged at electricity-air valve between elevated pressure nitrogen source of the gas, source of high pressure air and the secondary well heater that this electricity-air valve is connected with described computing machine.
This kerosene heating system adopts the secondary heating, has shortened kerosene and has been in the time of the condition of high temperature, and made kerosene that cracking take place under flow state fast, alleviates the gathering and the deposition of knot charcoal greatly.Nickel element can be used as catalyzer and quickens the kerosene cracking in the spiral pipe tube wall, further alleviates the gathering and the deposition of finishing charcoal; In addition, owing to also be filled with high nickel heat-resisting steel tubule in the spiral pipe of this secondary well heater, improved the heat exchange efficiency of unit length well heater, further accelerated the cracking and catalyzing process.One-level well heater and secondary well heater are controlled by temperature controller, make temperature control more accurate; Cut off the electricity supply rapidly when double security device can surpressure occur in system and bleed-off system in fuel.System pressure is reduced in the safe range; The double rinse system can remove knot charcoal and fuel oil remaining in secondary well heater and the piping system, for test is next time got ready.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a circuit connection diagram of the present invention;
Fig. 3 is the sectional view of secondary well heater spiral pipe among the present invention.
Embodiment:
Specify the present invention below in conjunction with accompanying drawing:
The present invention is used for the kerosene heating system of Supersonic combustion tests platform, its structural representation as shown in Figure 1, this system comprises:
One-level well heater 1 is made up of spiral pipe 11 that is arranged at nexine and the heating tape 12 that is coated on the spiral pipe, is welded with the K type thermopair 13 that is used to survey pipe surface temperature on these spiral pipe 11 tube walls, and the also penetrable tube wall of this thermopair is directly surveyed the kerosene temperature; Spiral pipe 11 1 ends connect high pressure fuel source 15 by valve 14, the other end is provided with dual security system 16 and drive system 17, this high pressure fuel source promotes piston 152 by gases at high pressure 151 and enters the one-level well heater, this dual security system 16 comprises the first order security system that condenser 161 and the safety valve that links to each other with condenser 162 are formed, and condenser 163 is with the electricity-air valve 164 that is connected with condenser 163 and be located at the second level security system that the electro connecting pressure gauge 165 on the one-level well heater is formed; Drive system 17 comprises high-pressure air source 171 and valve 172, and this high-pressure air source adopts high pressure nitrogen.Described heating tape 12 comprises resistance wire and the outer insulation course of resistance wire, the resistance wire of heating tape 12 is connected with power supply 19 by digital temperature controller 18, this digital temperature controller is connected with K type thermopair 13, its connecting circuit figure as shown in Figure 2, K type thermopair 13 is transferred to the digital temperature controller with the temperature parameter that collects, and the digital temperature controller is according to the break-make of temperature parameter control power supply.
Pipeline 3, its be provided with electricity-air valve 31 and the secondary well heater formed by electro connecting pressure gauge 32 and condenser 33, safety valve 34 on first order security system 35, this electricity-air valve 31 is connected with control computer 4, and this control computer other end is connected with above-mentioned K type thermopair 13; When this thermopair displays temperature reached predetermined value, the computing machine by control system sends instruction opened electricity-air valve 31; In addition, for making kerosene through preheating, be coated with the heating tape at pipeline 3 in temperature constant in the process of pipeline transmission.
Secondary well heater 2, secondary well heater 2 can be connected with the firing chamber, and secondary well heater 2 comprises outer spiral pipe 21 and some heat-resisting tubules 22 that are arranged in the outer spiral pipe 21, and the sectional view of this skin spiral pipe 2 is as shown in Figure 3; This skin spiral pipe and heat-resisting tubule all adopt high nickel heat-resisting steel, are welded with the K type thermopair 23 that is used to survey pipe surface temperature on outer spiral pipe 21 tube walls, and the also penetrable tube wall of thermopair is directly surveyed the kerosene temperature; These secondary well heater 2 one ends are provided with dual purging system 25, the other end is provided with condenser 261 and electricity-air valve 262 and the above-mentioned electro connecting pressure gauge 32 that is arranged on the pipeline 3 and forms second level security system 26, this second level security system and the first order security system 35 common dual security system of forming the secondary well heater that are arranged on the pipeline 3; The outer spiral pipe 21 of this secondary well heater 2 connects AC power 28 by digital temperature controller 27, and these digital temperature controller 27 other ends connect K type thermopair 23; The oil-out end of this secondary well heater connects the firing chamber by flowline, and this oil-out end is provided with pressure transducer 5, electricity-air valve 6, and this pressure transducer all is connected with above-mentioned control computer 4 with above-mentioned thermopair 23; Described dual purging system 25 comprises elevated pressure nitrogen source of the gas 251, source of high pressure air 252 and be arranged at the elevated pressure nitrogen source of the gas respectively, electricity-air valve 253 between source of high pressure air and the secondary well heater on the conveyance conduit and switch valve 254, described electricity-air valve 6,253 all are connected with control computer 4, its circuit connection diagram as shown in Figure 2, the temperature that collects when thermopair 23 and pressure transducer 5, when pressure parameter reaches predetermined value, control computer is opened electricity-air valve 6, make fuel oil enter the firing chamber, open electricity-air valve 253 then, use high pressure nitrogen, pressure-air washes the secondary well heater successively.
In use, after high pressure kerosene enters spiral pipe 11, valve-off 14, make switch 162 closures by digital temperature controller 161, the resistance wire energising, the heating tape temperature raises, thereby the spiral pipe temperature of one-level well heater 1 is raise, make the kerosene that enters in the spiral pipe be heated to predetermined value, send electricity-air valve 31 on the instruction unpack pipeline 3 by control computer then, the high pressure kerosene after the heating enters pipeline 3; In order to keep the pressure that transports of kerosene, can open valve 62 before the test, under the gases at high pressure effect of drive system, make the high pressure kerosene after the heating enter pipeline 3 fast.
The kerosene temperature that shows when above-mentioned thermopair 13 is during near design temperature, cut off the electricity supply by digital temperature controller 161 and to stop to spiral pipe 11 power supply, the heating tape temperature is no longer risen, if fuel pressure raises unusually, safety valve 162 is opened automatically, and releasing by fuel oil makes system pressure recover normal.If safety valve is malfunctioning, system pressure continues to raise, and electro connecting pressure gauge 165 will be cut off the electricity supply, and opens electricity-air valve 164 fuel oil of releasing.The very high gaseous state that is of temperature causes danger easily when releasing because of kerosene, therefore in safety valve, electricity-air valve downstream condenser is set, and makes the kerosene temperature reduce to be in a liquid state and releases.
Before the kerosene of preheating enters the secondary well heater, make secondary well heater 2 connect alternating current by digital temperature controller 27 earlier, make outer spiral pipe and inner tubule temperature be elevated to predetermined value, enter the secondary well heater fast and rise to from the high pressure kerosene of one-level well heater then and be higher than cracking temperature.Outside in the tube wall of helical layer pipe 21 and heat-resisting tubule 22 under the catalytic action of nickel element kerosene finish cracking, and enter the firing chamber subsequently.After experiment is finished, send by control computer 4 that the nitrogen wash system is opened in instruction successively and air-flushing system is rinsed the secondary well heater well.
If fuel pressure raises unusually, safety valve 34 is opened automatically, and releasing by fuel oil makes system pressure recover normal.If safety valve is malfunctioning, system pressure continues to raise, and electro connecting pressure gauge 32 will be cut off the electricity supply, and opens electricity-air valve 262 fuel oil of releasing.The very high gaseous state that is of temperature causes danger easily when releasing because of kerosene, therefore in safety valve, electricity-air valve downstream condenser is set, and makes the kerosene temperature reduce to be in a liquid state and releases.
Claims (10)
1, a kind of kerosene heating system that is used for the Supersonic combustion tests platform, it is characterized in that: the secondary well heater that this system comprises the one-level well heater, links to each other with the firing chamber, be connected by pipeline between this one-level well heater and the secondary well heater, be provided with valve between on this pipeline and firing chamber and the secondary well heater.
2, the kerosene heating system that is used for the Supersonic combustion tests platform as claimed in claim 1, it is characterized in that: described one-level well heater comprises spiral pipe and the heating tape that is coated on the spiral pipe, described one-level well heater is provided with thermopair, and this heating tape is connected power supply by the temperature controller that is connected with this thermopair.
3, the kerosene heating system that is used for the Supersonic combustion tests platform as claimed in claim 1 is characterized in that: the spiral pipe of described secondary well heater for being made by resistance material.
4, the kerosene heating system that is used for the Supersonic combustion tests platform as claimed in claim 3, it is characterized in that: described secondary well heater is provided with thermopair, and described spiral pipe is connected power supply by the temperature controller that is connected with this thermopair.
5, the kerosene heating system that is used for the Supersonic combustion tests platform as claimed in claim 3, it is characterized in that: described spiral pipe is high nickel heat-resisting steel.
6, the kerosene heating system that is used for the Supersonic combustion tests platform as claimed in claim 5 is characterized in that: be provided with some heat-resisting tubules in the described spiral pipe, this heat-resisting tubule is high nickel heat-resisting steel.
7, as claim 2 or the 4 described kerosene heating systems that are used for the Supersonic combustion tests platform, it is characterized in that: described valve is electricity-air valve, thermopair on described pressure transducer and the described one-level well heater, the thermopair on the secondary well heater all are connected with computing machine, and this computing machine is connected with described electricity-air valve.
8, the kerosene heating system that is used for the Supersonic combustion tests platform as claimed in claim 1 is characterized in that: be provided with dual security system on described one-level well heater and the secondary well heater.
9, the kerosene heating system that is used for the Supersonic combustion tests platform as claimed in claim 8, it is characterized in that: described first order safety feature is the safety valve that has condenser, and second level safety feature is by electro connecting pressure gauge, be made up of the electricity-air valve of electro connecting pressure gauge control and the condenser that is arranged at this electricity-air valve downstream.
10, the kerosene heating system that is used for the Supersonic combustion tests platform as claimed in claim 7, it is characterized in that: described secondary well heater is provided with the double rinse system, this double rinse system comprises elevated pressure nitrogen source of the gas, source of high pressure air and is arranged at electricity-air valve between elevated pressure nitrogen source of the gas, source of high pressure air and the secondary well heater that this electricity-air valve is connected with described computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100680364A CN100357660C (en) | 2005-05-09 | 2005-05-09 | Kerosene heating system for supersonics burning test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100680364A CN100357660C (en) | 2005-05-09 | 2005-05-09 | Kerosene heating system for supersonics burning test bed |
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| CN1687661A true CN1687661A (en) | 2005-10-26 |
| CN100357660C CN100357660C (en) | 2007-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100680364A Expired - Fee Related CN100357660C (en) | 2005-05-09 | 2005-05-09 | Kerosene heating system for supersonics burning test bed |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102706683A (en) * | 2012-06-15 | 2012-10-03 | 南方英特空调有限公司 | Heating-control linear test equipment of automobile air-conditioning box |
| CN103529719A (en) * | 2013-09-24 | 2014-01-22 | 中国科学院力学研究所 | Electric equipment control circuit applied to supersonic combustion test |
| CN103592961A (en) * | 2013-09-24 | 2014-02-19 | 中国科学院力学研究所 | Kerosene flow control device for supersonic combustion test |
| CN103676981A (en) * | 2013-09-24 | 2014-03-26 | 中国科学院力学研究所 | A kerosene flow control method for a supersonic speed combustion test |
| CN104791831A (en) * | 2014-10-28 | 2015-07-22 | 中国科学院力学研究所 | Iso-butane feed system for supersonic combustion direct connection platform |
| CN106918458A (en) * | 2017-03-29 | 2017-07-04 | 西安航天动力试验技术研究所 | A kind of Test System for Rocket Engine Test kerosene high/low temperature heat-exchange system and charging method |
| CN108180075A (en) * | 2017-12-15 | 2018-06-19 | 中国人民解放军空军工程大学 | The rotational slide arc plasma fuel oil splitting decomposition head of aeroengine combustor buring room |
| CN109404162A (en) * | 2018-12-06 | 2019-03-01 | 中国人民解放军国防科技大学 | Constant-pressure two-stage electric heating device for aviation kerosene |
| CN110907123A (en) * | 2019-12-11 | 2020-03-24 | 中国空气动力研究与发展中心 | High-enthalpy propulsion wind tunnel air heating method and device |
| CN114279709A (en) * | 2021-12-28 | 2022-04-05 | 北京航空航天大学 | Supercritical kerosene heating device and heating method for supersonic test bed |
| CN115263615A (en) * | 2022-08-05 | 2022-11-01 | 北京航空航天大学 | Fuel oil heating system and fuel oil heating method |
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| FR2344804A1 (en) * | 1976-03-17 | 1977-10-14 | Fimec | Household ventilation system heat recuperator - has concentric tubes forming meander paths for hot stale air and cold fresh air |
| CN2067800U (en) * | 1990-03-01 | 1990-12-19 | 何江斌 | Vaporizing kerosene stove |
| JPH0921525A (en) * | 1995-07-04 | 1997-01-21 | Silver Kk | Liquid fuel combustion apparatus |
| JPH1182931A (en) * | 1997-09-03 | 1999-03-26 | Hitachi Home Tec Ltd | Kerosene vaporizer |
| JP2001099405A (en) * | 1999-09-30 | 2001-04-13 | Hitachi Hometec Ltd | Liquid fuel combustion device |
| DE10030627A1 (en) * | 2000-06-28 | 2002-01-17 | Ultrafilter Internat Ag | Heat exchangers for refrigeration dryer systems |
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- 2005-05-09 CN CNB2005100680364A patent/CN100357660C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706683A (en) * | 2012-06-15 | 2012-10-03 | 南方英特空调有限公司 | Heating-control linear test equipment of automobile air-conditioning box |
| CN103592961B (en) * | 2013-09-24 | 2016-05-25 | 中国科学院力学研究所 | The kerosene oil flow control device of Supersonic combustion tests |
| CN103592961A (en) * | 2013-09-24 | 2014-02-19 | 中国科学院力学研究所 | Kerosene flow control device for supersonic combustion test |
| CN103676981A (en) * | 2013-09-24 | 2014-03-26 | 中国科学院力学研究所 | A kerosene flow control method for a supersonic speed combustion test |
| CN103676981B (en) * | 2013-09-24 | 2016-04-13 | 中国科学院力学研究所 | The kerosene oil flow control method of Supersonic combustion tests |
| CN103529719A (en) * | 2013-09-24 | 2014-01-22 | 中国科学院力学研究所 | Electric equipment control circuit applied to supersonic combustion test |
| CN104791831A (en) * | 2014-10-28 | 2015-07-22 | 中国科学院力学研究所 | Iso-butane feed system for supersonic combustion direct connection platform |
| CN104791831B (en) * | 2014-10-28 | 2017-02-08 | 中国科学院力学研究所 | Iso-butane feed system for supersonic combustion direct connection platform |
| CN106918458A (en) * | 2017-03-29 | 2017-07-04 | 西安航天动力试验技术研究所 | A kind of Test System for Rocket Engine Test kerosene high/low temperature heat-exchange system and charging method |
| CN108180075A (en) * | 2017-12-15 | 2018-06-19 | 中国人民解放军空军工程大学 | The rotational slide arc plasma fuel oil splitting decomposition head of aeroengine combustor buring room |
| CN109404162A (en) * | 2018-12-06 | 2019-03-01 | 中国人民解放军国防科技大学 | Constant-pressure two-stage electric heating device for aviation kerosene |
| CN109404162B (en) * | 2018-12-06 | 2023-12-15 | 中国人民解放军国防科技大学 | Aviation kerosene isobaric secondary electric heating device |
| CN110907123A (en) * | 2019-12-11 | 2020-03-24 | 中国空气动力研究与发展中心 | High-enthalpy propulsion wind tunnel air heating method and device |
| CN114279709A (en) * | 2021-12-28 | 2022-04-05 | 北京航空航天大学 | Supercritical kerosene heating device and heating method for supersonic test bed |
| CN115263615A (en) * | 2022-08-05 | 2022-11-01 | 北京航空航天大学 | Fuel oil heating system and fuel oil heating method |
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| CN100357660C (en) | 2007-12-26 |
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Granted publication date: 20071226 Termination date: 20170509 |