CN-122009503-A - Maintenance-free long-storage-resistant fuel oil device

CN122009503ACN 122009503 ACN122009503 ACN 122009503ACN-122009503-A

Abstract

The invention discloses a maintenance-free long-life-resistant fuel storage device which comprises a fuel tank, a fuel collecting tank, an expansion tank, an anti-bubble fuel tank, a temperature and pressure sensor, a fuel pump, a vent electric explosion valve, a controller and a one-way valve, wherein the fuel collecting tank is arranged in the fuel tank and is internally provided with an oil suction main pipe, the oil suction main pipe extends out of the fuel collecting tank from the fuel collecting tank to be connected with a fuel pump inlet, an outlet of the fuel pump is connected to the anti-bubble fuel tank through a pipeline by the temperature and pressure sensor, the anti-bubble fuel tank is connected with one end of the vent electric explosion valve through a pipeline, the other end of the vent electric explosion valve is connected with an engine fuel supply inlet, the expansion tank is arranged at the top of the fuel tank and is connected with the fuel tank through a pipeline, a vent pipeline is reserved at the top of the expansion tank, and the vent pipeline extends to the outside of the expansion tank to be connected with the vent electric explosion valve. The invention can meet the quality guarantee of more than ten years of fuel oil storage, effectively improve the reliability of flying power in the using process and widen the maneuvering overload range of the aircraft.

Inventors

Ye Sijuan
WANG HANGZHOU
LIU JIANGUO
YANG SHAOQING
TIAN XIAOTAO
CHEN GANG
LI HONGCAI
LU WEI
XIONG QINGRONG
FENG YUHONG

Assignees

西安现代控制技术研究所

Dates

Publication Date: 20260512
Application Date: 20260413

Claims (9)

1. The maintenance-free long-storage-resistant fuel device is characterized by comprising a fuel tank, a fuel collecting tank, an expansion tank, an anti-bubble fuel tank, a temperature and pressure sensor, a fuel pump, a fuel-passing electric explosion valve, a ventilation electric explosion valve, a controller and a one-way valve; The fuel tank is internally provided with a fuel collecting tank, wherein the fuel collecting tank is internally provided with an oil suction main pipe, and the oil suction main pipe extends out of the fuel collecting tank and is connected with an inlet of a fuel pump; The anti-bubble oil tank is connected with one end of an oil-passing electric explosion valve through a pipeline, and the other end of the oil-passing electric explosion valve is connected with an oil supply inlet of the engine; The top of the fuel tank is provided with an expansion tank which is connected with the fuel tank through a pipeline, and the top of the expansion tank is reserved with a vent pipeline which extends to the outside of the expansion tank and is connected with a vent electric explosion valve; The controller is connected with the fuel pump, the temperature and pressure sensor, the oil-passing electric explosion valve and the oil-passing electric explosion valve through cables, and is used for collecting the output temperature and pressure of the fuel in real time and controlling the rotating speed of the fuel pump to output the fuel to the engine; and the expansion tank is provided with a one-way valve serving as a nitrogen gas charging port.
2. The maintenance-free long-storage-resistant fuel oil device according to claim 1, wherein the fuel tank is of a full-sealing structure, a double-layer sealing design is adopted, connection among a tank body, a tank cover, ribs and pipelines of the fuel tank is achieved through inner and outer step matching, inner and outer lap joint surfaces are formed through laser welding or argon arc welding, a permanent sealing layer is formed, and the tank body of the fuel tank is made of stainless steel materials.
3. The maintenance-free long-life fuel storage device according to claim 1, wherein the fuel collecting tank is of an integral structure, the fuel collecting tank is arranged at the bottom of a fuel tank body, the bottom of the fuel collecting tank is communicated with the fuel tank body, and two small holes with the diameter of 2mm are reserved on the upper wall surface of the fuel collecting tank body.
4. The maintenance-free long-life fuel storage device of claim 1, wherein the method of using the fuel collection tank comprises the following steps: when the fuel oil is filled, the fuel oil enters the fuel oil collecting tank from the bottom of the fuel oil collecting tank, and gas overflows from the small hole; When the fuel tank is in operation, the fuel liquid in the fuel tank body can shake up and down and back and forth along with motor overload, the fuel in the fuel collecting tank is in a full-oil state, the fuel is kept stable, the fuel suction pipe in the fuel collecting tank is kept in a continuous fuel supply state, when the fuel quantity of the fuel collecting tank is reduced, the upper fuel is displayed in the fuel collecting tank, the lower gas is displayed in the fuel collecting tank, the fuel suction pipe can move along with positive and negative overload in the same direction with the fuel, so that the fuel continuously and smoothly enters the fuel suction pipe, when the fuel device is restored to a horizontal forward overload, the fuel collecting tank enters a normal working condition, the fuel enters the fuel collecting tank from the bottom of the fuel collecting tank, and gas in the fuel collecting tank overflows to the outside of the fuel collecting tank from a small hole at the upper end, and the fuel collecting tank is restored to the full-oil state.
5. The maintenance-free long-life fuel storage device of claim 1, wherein the expansion tank has a volume of 7% or more of the volume of the tank body.
6. The maintenance-free long-storage-resistant fuel device according to claim 1, wherein a filling port is formed in the side face of the fuel tank and is communicated with the inside of the fuel collecting tank through a pipeline, a vent port is formed in the side face or the upper face of the fuel tank, an outlet of a pipeline in the vent port is formed in the inside of the fuel tank, when the liquid level of fuel reaches the outlet of the pipeline in the vent port during filling, the fuel is overflowed, namely, the fuel is filled to a maximum full-oil state, and the filling port and the vent port are of one-way valve structures, so that the sealed state after the fuel is filled is guaranteed.
7. The maintenance-free long-life fuel storage device of claim 1, wherein the controller collects the pressure and temperature of the output fuel in real time, and when the flying speed increases, the fuel flow increases, the rotational speed of the fuel pump is adjusted according to the required fuel pressure, the fuel pressure and the fuel flow are increased, and the engine thrust is improved.
8. The maintenance-free long-life fuel device of claim 1, wherein said fuel is dehydrated and deoxygenated kerosene.
9. The maintenance-free long-life fuel storage device of claim 1, wherein the oil-passing electric explosion valve and the air-passing electric explosion valve are diaphragm type electric explosion valves.

Description

Maintenance-free long-storage-resistant fuel oil device Technical Field The invention belongs to the technical field of fuel oil storage, and particularly relates to a maintenance-free long-storage-resistant fuel oil device. Background At present, the following technical bottlenecks are commonly existed in the traditional fuel system: 1. The sealing reliability is insufficient, namely, a single sealing ring or screw thread sealing is adopted, and the sealing failure and fuel leakage are easily caused by ageing of materials in long-term storage. 2. The maintenance requirement is high, and sealing elements are required to be checked regularly and impurities are required to be cleaned, so that the method is not applicable to long-term storage scenes and requirements. 3. The oil supply stability is insufficient, and the traditional oil tank is easy to generate vortex bubbles during oil pumping or generate bubbles in a large overload state, so that the operation of equipment or an engine is influenced, and even the engine is flameout. The fuel system has no sealing requirement in the automobile field and the aviation field, and needs to be checked and maintained regularly in the use process. And the fuel system in the special application field is required to have long storage period and no maintenance, and the reuse system is reliable. The fuel tank is reliable in fuel supply under various motor flight overload conditions, is stored for no maintenance within the range of-40 degrees to 50 degrees and even 70 degrees, can be used immediately, and has the advantages of good structure, good functions of components and good fuel quality. Therefore, there is a need for a fuel system design that combines high sealability, long shelf life, maintenance-free, reliable fuel delivery. Disclosure of Invention The invention provides a maintenance-free long-life fuel storage device which comprises a fuel tank, a fuel collecting tank, an expansion tank, an anti-bubble fuel tank, a temperature and pressure sensor, a fuel pump, a vent electric explosion valve, a controller and a one-way valve, wherein the fuel collecting tank is arranged in the fuel tank, the fuel collecting tank comprises a fuel suction main pipe, the fuel suction main pipe extends out of the fuel collecting tank from the fuel collecting tank to be connected with a fuel pump inlet, an outlet of the fuel pump is connected to the anti-bubble fuel tank through a pipeline by the temperature and pressure sensor, the anti-bubble fuel tank is connected with one end of the vent electric explosion valve through a pipeline, the other end of the vent electric explosion valve is connected with an engine fuel supply inlet, the top of the fuel tank is provided with the expansion tank, the expansion tank is connected with the fuel tank through a pipeline, the vent pipeline is reserved at the top of the expansion tank, the vent pipeline extends to the outside of the expansion tank to be connected with the vent electric explosion valve, and the controller is connected with the fuel pump, the temperature and pressure sensor, the vent electric explosion valve through a cable. The invention can meet the quality guarantee of more than ten years of fuel oil storage, effectively improve the reliability of flying power in the using process and widen the maneuvering overload range of the aircraft. The technical scheme adopted for solving the technical problems is as follows: A maintenance-free long-storage-resistant fuel device comprises a fuel tank, a fuel collecting tank, an expansion tank, an anti-bubble fuel tank, a temperature and pressure sensor, a fuel pump, a fuel-on electric explosion valve, a controller and a one-way valve; The fuel tank is internally provided with a fuel collecting tank, wherein the fuel collecting tank is internally provided with an oil suction main pipe, and the oil suction main pipe extends out of the fuel collecting tank and is connected with an inlet of a fuel pump; The anti-bubble oil tank is connected with one end of an oil-passing electric explosion valve through a pipeline, and the other end of the oil-passing electric explosion valve is connected with an oil supply inlet of the engine; The top of the fuel tank is provided with an expansion tank which is connected with the fuel tank through a pipeline, and the top of the expansion tank is reserved with a vent pipeline which extends to the outside of the expansion tank and is connected with a vent electric explosion valve; The controller is connected with the fuel pump, the temperature and pressure sensor, the oil-passing electric explosion valve and the oil-passing electric explosion valve through cables, and is used for collecting the output temperature and pressure of the fuel in real time and controlling the rotating speed of the fuel pump to output the fuel to the engine; and the expansion tank is provided with a one-way valve serving as a nitrogen gas charging port. Preferably, the fuel tank is