CN105709869A - Low temperature kerosene supply device - Google Patents
Low temperature kerosene supply device Download PDFInfo
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- CN105709869A CN105709869A CN201410728162.7A CN201410728162A CN105709869A CN 105709869 A CN105709869 A CN 105709869A CN 201410728162 A CN201410728162 A CN 201410728162A CN 105709869 A CN105709869 A CN 105709869A
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- oil
- valve
- low temperature
- outlet
- fuel tank
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Abstract
The invention provides a low temperature kerosene supply device which is characterized by comprising a liquid nitrogen storage tank (1), a low temperature solenoid valve (2), a low temperature oil tank (3), a low temperature pump (5), an oil filter (6), an inlet valve (7), a flow meter (10), and an outlet valve (13); the low temperature oil tank (3) is internally provided with a cooling pipeline (3-1); an outlet pipeline of the liquid nitrogen storage tank (1) communicates with an inlet of the cooling pipeline (3-1) through the low temperature solenoid valve (2); an outlet of the cooling pipeline (3-1) is arranged at the top end of the low temperature oil tank (3); the inlet valve (7) of an oil outlet of the low temperature oil tank (3) communicates with an oil inlet of the low temperature pump (5); an oil outlet of the low temperature pump (5) enters the oil filter (6) through the inlet valve (7); an oil outlet of the oil filter (6) communicates with an oil inlet of the outlet valve (13), and an oil outlet of the outlet valve (13) communicates with an external device through the flow meter (10).
Description
Technical field
The invention is widely used in semi physical low-temperature test environment, it is desirable to rate of temperature fall is fast, temperature control precision is high, environmental pollution is little, improves test preparation efficiency.
Background technology
Traditional low temperature kerosene feed system adopts the mode of compressor cooling, is generally adopted two stages of compression, and operation principle is complicated, and the control of equipment requires higher, and the device fabrication cycle is long, and manufacturing cost is higher, and maintenance cost is also high, and equipment is easily damaged.
Summary of the invention
The purpose of the invention:
A kind of low temperature kerosene feedway of research.Realize that rate of temperature fall is fast, temperature control precision is high, environmental pollution is little, improve test preparation efficiency.
The technical scheme of the invention:
1. a low temperature kerosene feedway, it is characterized in that, liquid nitrogen storage tank (1), low-temperature solenoid valve (2), low temperature fuel tank (3), cryopump (5), oil filter (6), imported valve (7), effusion meter (10), outlet valve (13), cooling line (3-1) it is provided with in low temperature fuel tank (3), the export pipeline of liquid nitrogen storage tank (1) is connected with cooling line (3-1) import by low-temperature solenoid valve (2), low temperature fuel tank (3) top is located in the outlet of cooling line (3-1), the oil-out imported valve (7) of low temperature fuel tank (3) is connected with the oil-in of cryopump (5), the oil-out of cryopump (5) enters oil filter (6) by imported valve (7), the oil-out of oil filter (6) is connected with the oil-in of outlet valve (13), the oil-out of outlet valve (13) is connected with external equipment by effusion meter (10).
Further, low temperature fuel tank (3) inner bottom brings out hydraulic fluid port and is also arranged above division board (3-2), division board (3-2) adopts pyramidal structure, the edge of division board (3-2) is provided with installation point, division board (3-2) is installed on the inwall of division board (3-2) by installing point, and the edge of division board (3-2) does not contact with low temperature fuel tank (3) inwall except the position installing point.The bubble produced in process of the test, is intercepted by the division board of low-temperature oil bottom end, and division board reduces bubble and enters the cavitation erosion equivalent risk of cryopump.
Further, the exit of cooling line (3-1) arranges air filter (4).Air filter reduces owing to the factors such as air expands with heat and contract with cold cause that outside moisture enters the risk that low temperature fuel tank internal causes testpieces to damage.
Further, cooling line (3-1) is provided with the first branch pipeline (3-1-1) and the second branch pipeline (3-1-2).Cooling line (3-1) adopts Multi-channel parallel connection feed liquor nitrogen mode, allows multiply liquid nitrogen rapid heat of evaporation in heat exchange coil exchange.Spiral helicine heat exchange coil is arranged to be formed the heat-exchanging tube bundle in different temperatures flow field simultaneously, allows liquid nitrogen as far as possible fully absorb heat in heat exchanger tube evaporation.
Further, oil filter (6) includes the first oil filter (6-1) and the second oil filter (6-2), imported valve (7) includes the first imported valve (7-1) and the second imported valve (7-2), outlet valve (13) includes the first outlet valve (13-1) and the second outlet valve (13-2), the pipeline of the oil-out of cryopump (5) passes sequentially through the first imported valve (7-1), first oil filter (6-1) and the first outlet valve (13-1), another pipeline of the oil-out of cryopump (5) passes sequentially through the second imported valve (7-2), second oil filter (6-2) and the second outlet valve (13-2).Process of the test occurs cause the phenomenon of oil filter filter element blocking owing to condensed water freezes in oil is filtered, by switching the first oil filter (6-1) and the second oil filter (6-2), reduce oil filter filter element and block the risk caused.
Further, it is additionally provided with motorized needle valve (11) and oil-feed threeway (12), the oil-in of low temperature fuel tank (3) is connected with the first branch road of oil-feed threeway (12), second branch road of oil-feed threeway (12) is connected by the oil-out of motorized needle valve (11) with Subzero valve (7), and the 3rd branch road of oil-feed threeway (12) is connected with external equipment.Close motorized needle valve (11), Subzero valve (7), to low temperature tank filling.The test preparatory stage, by regulating the aperture of motorized needle valve, it is achieved control and the adjustment to external equipment fuel feeding oil pressure and flow.
Further, pressure transmitter (8) is arranged at the oil-in place of effusion meter (10), and motorized needle valve (11) is connected with pressure transmitter (8) and realizes the opening and closing of motorized needle valve (11) valve.
Further, temperature transmitter (9) is arranged at the oil-in place of effusion meter (10), and temperature transmitter (9) is connected with low-temperature solenoid valve (2) and realizes the opening and closing of low-temperature solenoid valve (2) valve.
After external equipment notes kerosene to low temperature fuel tank, cryopump takes out kerosene from low temperature fuel tank, and kerosene is entered after oil filters filter by pipeline and returns to low temperature fuel tank.After the granule angle value of kerosene meets requirement, opening liquid nitrogen storage tank valve, liquid nitrogen passes through Multi-channel parallel connection feed liquor nitrogen mode, allows multiply liquid nitrogen rapid heat of evaporation in cooling line exchange.Spiral helicine cooling line is arranged to be formed the heat-exchanging tube bundle in different temperatures flow field, allows liquid nitrogen as far as possible fully absorb heat in heat exchanger tube evaporation.Until the fuel oil temperature of low temperature fuel tank is down to setting value.Electromagnetic valve automatically cuts off liquid nitrogen supply.The temperature and pressure of pressure transmitter, temperature transmitter signal piping outlet, realizes adjustment and the control of cryogenic system outlet pressure and flow by the aperture of adjustment motorized needle valve and adjustment cryopump outlet pressure and flow.
Accompanying drawing illustrates:
Fig. 1 is the schematic diagram of a kind of low temperature kerosene feedway；
Fig. 2 is cooling line schematic diagram；
Fig. 3 is oil of the present invention filter partial schematic diagram.
Detailed description of the invention:
The invention provides a kind of low temperature kerosene feedway, it is characterized in that, liquid nitrogen storage tank 1, low-temperature solenoid valve 2, low temperature fuel tank 3, cryopump 5, oil filter 6, imported valve 7, effusion meter 10, outlet valve 13, cooling line 3-1 it is provided with in low temperature fuel tank 3, the export pipeline of liquid nitrogen storage tank 1 is connected with cooling line 3-1 import by low-temperature solenoid valve 2, low temperature fuel tank 3 top is located in the outlet of cooling line 3-1, the oil-out imported valve 7 of low temperature fuel tank 3 is connected with the oil-in of cryopump 5, the oil-out of cryopump 5 enters oil filter 6 by imported valve 7, the oil-out of oil filter 6 is connected with the oil-in of outlet valve 13, the oil-out of outlet valve 13 is connected with external equipment by effusion meter 10.
Low temperature fuel tank 3 inner bottom brings out hydraulic fluid port and is also arranged above division board 3-2, division board 3-2 adopts pyramidal structure, the edge of division board 3-2 is provided with installation point, division board 3-2 is installed on the inwall of division board 3-2 by installing point, and the edge of division board 3-2 does not contact with low temperature fuel tank 3 inwall except the position installing point.The bubble produced in process of the test, is intercepted by the division board of low-temperature oil bottom end, and division board reduces bubble and enters the cavitation erosion equivalent risk of cryopump.
The exit of cooling line 3-1 arranges air filter 4.Air filter reduces owing to the factors such as air expands with heat and contract with cold cause that outside moisture enters the risk that low temperature fuel tank internal causes testpieces to damage.
Cooling line 3-1 is provided with the first branch pipeline 3-1-1 and the second branch pipeline 3-1-2.Cooling line 3-1 adopts Multi-channel parallel connection feed liquor nitrogen mode, allows multiply liquid nitrogen rapid heat of evaporation in heat exchange coil exchange.Spiral helicine heat exchange coil is arranged to be formed the heat-exchanging tube bundle in different temperatures flow field simultaneously, allows liquid nitrogen as far as possible fully absorb heat in heat exchanger tube evaporation.
Oil filter 6 includes the first oil filter 6-1 and the second oil filter 6-2, imported valve 7 includes the first imported valve 7-1 and the second imported valve 7-2, outlet valve 13 includes the first outlet valve 13-1 and the second outlet valve 13-2, the pipeline of the oil-out of cryopump 5 passes sequentially through the first imported valve 7-1, the first oil filter 6-1 and the first outlet valve 13-1, and another pipeline of the oil-out of cryopump 5 passes sequentially through the second imported valve 7-2, the second oil filter 6-2 and the second outlet valve 13-2.Process of the test occurs cause the phenomenon of oil filter filter element blocking owing to condensed water freezes in oil is filtered, by switching the first oil filter 6-1 and the second oil filter 6-2, reduce oil filter filter element and block the risk caused.
It is additionally provided with motorized needle valve 11 and oil-feed threeway 12, the oil-in of low temperature fuel tank 3 is connected with the first branch road of oil-feed threeway 12, second branch road of oil-feed threeway 12 is connected by the oil-out of motorized needle valve 11 with Subzero valve 7, and the 3rd branch road of oil-feed threeway 12 is connected with external equipment.Close motorized needle valve 11, Subzero valve 7, to low temperature tank filling.The test preparatory stage, by regulating the aperture of motorized needle valve, it is achieved control and the adjustment to external equipment fuel feeding oil pressure and flow.
Pressure transmitter 8 is arranged at the oil-in place of effusion meter 10, and motorized needle valve 11 is connected with pressure transmitter 8 and realizes the opening and closing of motorized needle valve 11 valve.
Temperature transmitter 9 is arranged at the oil-in place of effusion meter 10, and temperature transmitter 9 is connected with low-temperature solenoid valve 2 and realizes the opening and closing of low-temperature solenoid valve 2 valve.
Claims (8)
1. a low temperature kerosene feedway, it is characterized in that, liquid nitrogen storage tank (1), low-temperature solenoid valve (2), low temperature fuel tank (3), cryopump (5), oil filter (6), imported valve (7), effusion meter (10), outlet valve (13), cooling line (3-1) it is provided with in low temperature fuel tank (3), the export pipeline of liquid nitrogen storage tank (1) is connected with cooling line (3-1) import by low-temperature solenoid valve (2), low temperature fuel tank (3) top is located in the outlet of cooling line (3-1), the oil-out imported valve (7) of low temperature fuel tank (3) is connected with the oil-in of cryopump (5), the oil-out of cryopump (5) enters oil filter (6) by imported valve (7), the oil-out of oil filter (6) is connected with the oil-in of outlet valve (13), the oil-out of outlet valve (13) is connected with external equipment by effusion meter (10).
2. low temperature kerosene feedway according to claim 1, it is characterized in that, low temperature fuel tank (3) inner bottom brings out hydraulic fluid port and is also arranged above division board (3-2), division board (3-2) adopts pyramidal structure, the edge of division board (3-2) is provided with installation point, division board (3-2) is installed on the inwall of division board (3-2) by installing point, and the edge of division board (3-2) does not contact with low temperature fuel tank (3) inwall except the position installing point.
3. low temperature kerosene feedway according to claim 1, it is characterised in that the exit of cooling line (3-1) arranges air filter (4).
4. low temperature kerosene feedway according to claim 1, it is characterised in that cooling line (3-1) is provided with the first branch pipeline (3-1-1) and the second branch pipeline (3-1-2).
5. low temperature kerosene feedway according to claim 1, it is characterized in that, oil filter (6) includes the first oil filter (6-1) and the second oil filter (6-2), imported valve (7) includes the first imported valve (7-1) and the second imported valve (7-2), outlet valve (13) includes the first outlet valve (13-1) and the second outlet valve (13-2), the pipeline of the oil-out of cryopump (5) passes sequentially through the first imported valve (7-1), first oil filter (6-1) and the first outlet valve (13-1), another pipeline of the oil-out of cryopump (5) passes sequentially through the second imported valve (7-2), second oil filter (6-2) and the second outlet valve (13-2).
6. low temperature kerosene feedway according to claim 1, it is characterized in that, it is additionally provided with motorized needle valve (11) and oil-feed threeway (12), the oil-in of low temperature fuel tank (3) is connected with the first branch road of oil-feed threeway (12), second branch road of oil-feed threeway (12) is connected by the oil-out of motorized needle valve (11) with Subzero valve (7), and the 3rd branch road of oil-feed threeway (12) is connected with external equipment.
7. low temperature kerosene feedway according to claim 1, it is characterized in that, pressure transmitter (8) is arranged at the oil-in place of effusion meter (10), and motorized needle valve (11) is connected with pressure transmitter (8) and realizes the opening and closing of motorized needle valve (11) valve.
8. low temperature kerosene feedway according to claim 1, it is characterized in that, temperature transmitter (9) is arranged at the oil-in place of effusion meter (10), and temperature transmitter (9) is connected with low-temperature solenoid valve (2) and realizes the opening and closing of low-temperature solenoid valve (2) valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728162.7A CN105709869B (en) | 2014-12-03 | 2014-12-03 | A kind of low temperature kerosene feedway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728162.7A CN105709869B (en) | 2014-12-03 | 2014-12-03 | A kind of low temperature kerosene feedway |
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| CN105709869A true CN105709869A (en) | 2016-06-29 |
| CN105709869B CN105709869B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410728162.7A Active CN105709869B (en) | 2014-12-03 | 2014-12-03 | A kind of low temperature kerosene feedway |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0437772A1 (en) * | 1990-01-17 | 1991-07-24 | Bayerische Motoren Werke Aktiengesellschaft | Boiling liquid cooling system for a liquid cooled internal combustion engine |
| CN101231215A (en) * | 2008-02-28 | 2008-07-30 | 北京航空航天大学 | Device and method for testing upper air performance of aircraft engine fuel oil system |
| CN102954637A (en) * | 2011-08-24 | 2013-03-06 | 罗伯特·博世有限公司 | Method and system for filling refrigerant into refrigeration system |
| CN203010996U (en) * | 2012-12-21 | 2013-06-19 | 山东大学 | Rapid refrigeration system utilizing liquid nitrogen |
-
2014
- 2014-12-03 CN CN201410728162.7A patent/CN105709869B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0437772A1 (en) * | 1990-01-17 | 1991-07-24 | Bayerische Motoren Werke Aktiengesellschaft | Boiling liquid cooling system for a liquid cooled internal combustion engine |
| CN101231215A (en) * | 2008-02-28 | 2008-07-30 | 北京航空航天大学 | Device and method for testing upper air performance of aircraft engine fuel oil system |
| CN102954637A (en) * | 2011-08-24 | 2013-03-06 | 罗伯特·博世有限公司 | Method and system for filling refrigerant into refrigeration system |
| CN203010996U (en) * | 2012-12-21 | 2013-06-19 | 山东大学 | Rapid refrigeration system utilizing liquid nitrogen |
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| CN105709869B (en) | 2017-11-03 |
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Address after: No. 104, Liangxi Road, Binhu District, Wuxi City, Jiangsu Province Patentee after: AECC AERO ENGINE CONTROL SYSTEM INSTITUTE Address before: 214063 Jiangsu city of Wuxi province Liangxi Road No. 792 Patentee before: AVIC AVIATION MOTOR CONTROL SYSTEM INSTITUTE |
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