A non-electrical power driven oil supply system

Abstract

The present invention discloses a non-electrically powered oil supply system, which relates to the technical field of oil supply, and comprises an oil tank, a vacuum tank, a negative pressure generating unit, an oil outlet pipeline, an oil inlet pipeline, an exhaust pipeline, a circulating negative pressure pipeline and a circulating air extraction pipeline; the exhaust pipeline and the circulating negative pressure pipeline are connected in a controllable opening and closing manner; a cylinder-driven quantitative oil pumping unit is installed on the oil outlet pipeline to ensure the accuracy of fuel delivery; the vacuum tank is connected to the oil tank and the circulating negative pressure pipeline in a controllable opening and closing manner; the vacuum tank and the negative pressure generating unit are connected through the circulating air extraction pipeline, and the negative pressure generating unit is driven by the cylinder to maintain the vacuum tank in a negative pressure state, so that the fuel in the oil inlet pipeline is sucked into the oil tank, and the volatile gas of the fuel is discharged through the circulating air extraction pipeline; the pressure in the oil tank can be dynamically adjusted by the linkage control of the exhaust pipeline and the circulating negative pressure pipeline, and rapid oil supply can be achieved in cooperation with the quantitative oil pumping unit, so that efficient and non-electric oil supply operation can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil supply, and in particular to a non-electrical power driven oil supply system. Background Art

[0002] During the automobile production process, new vehicles undergo test runs before leaving the factory to relieve stress between components and ensure the stability of vehicle performance. Therefore, before a test run, fuel-powered vehicles must be refueled using a fuel supply system to ensure the engine starts properly. However, traditional fuel supply systems primarily use an electric fuel supply method, where an electric pump delivers fuel to the new vehicle's tank. While this fuel supply method is efficient in ordinary environments (such as gas stations with open areas), it poses certain safety risks when used in the enclosed environment of automobile production plants.

[0003] Automobile manufacturing plants typically house a large amount of machinery and equipment in relatively enclosed spaces with poor ventilation. Furthermore, they may store flammable materials such as paint, lubricants, and plastics. Gasoline itself is flammable and explosive, making it highly susceptible to accidents caused by sparks or high temperatures. If the fuel supply system relies on electricity, an electrical fault, such as a short circuit, static electricity buildup, or motor overheating, could ignite gasoline vapors, leading to fires or even explosions.

[0004] Therefore, in order to reduce safety risks, the oil supply equipment inside the factory needs to minimize the use of electric drives to avoid safety accidents caused by electrical failures.

[0005] In addition, the volatility of gasoline can cause pressure to accumulate in the fuel tank. If there is a lack of an effective venting mechanism, it may cause the container to rupture or vapor to leak, further increasing the risk of explosion.

[0006] At present, the electric oil supply system commonly used in the industry uses an electric pump to drive the oil pipeline and a controller to control the opening and closing of the electric pump and valve. Although it can achieve precise oil supply, its electrical components have significant safety hazards in flammable environments.

[0007] Some non-electric fueling solutions attempt to replace electricity with mechanical or hydraulic drives. However, these systems are complex and require additional mobile fuel power units, reducing operational flexibility and increasing costs. Furthermore, existing technologies for managing gasoline vapor pressure often rely on simple pressure relief valves or passive exhaust, lacking active control mechanisms and making it difficult to balance safety and fueling efficiency.

[0008] In summary, it is found that the existing technology has at least the following technical problems:

[0009] Electrical safety hazards: Electric fuel supply devices rely on electricity to drive, and are prone to fires caused by electric sparks or faults in flammable and explosive environments; Insufficient control of volatile pressure: The existing exhaust mechanism passively responds to pressure changes and lacks dynamic adjustment capabilities, which can easily lead to pressure imbalance or fuel waste; System complexity and high cost: Non-electric alternatives (such as hydraulic drive) require additional power units, which are bulky and have high maintenance costs.

[0010] The existing oil supply device has technical problems such as easy occurrence of electrical fire, insufficient control of oil vapor volatilization pressure and complex oil supply system. Summary of the Invention

[0011] The purpose of the present invention is to provide a non-electrical power driven oil supply system to solve the technical problems of the existing oil supply device, such as easy occurrence of electrical fire, insufficient control of oil vapor volatilization pressure, and complex oil supply system.

[0012] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0013] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0014] The present invention provides a non-electrically powered oil supply system, comprising an oil tank, an oil outlet pipeline installed at the bottom of the oil tank, an oil inlet pipeline, an exhaust pipeline and a circulating negative pressure pipeline installed at the top; the exhaust pipeline is connected to the circulating negative pressure pipeline in a controllable opening and closing manner; and a vacuum tank, the vacuum tank is connected to the top of the oil tank and the circulating negative pressure pipeline in a controllable opening and closing manner; and a circulating air extraction pipeline, the circulating air extraction pipeline is provided with an air extraction end, an exhaust end and two negative pressure ends; the air extraction end is connected to the vacuum tank, and the exhaust end is connected to an oil-water separator; and a cylinder-driven negative pressure generating unit, the negative pressure generating unit is connected The two negative pressure ends; a plurality of pneumatically controlled switches are provided on the circulating air extraction pipeline, and the connecting pipelines of the negative pressure generating unit, the oil-water separator and the vacuum tank are cyclically switched through the two negative pressure ends, so that the negative pressure generating unit can extract gas from the vacuum tank and discharge it to the exhaust end in each suction and pumping; with air pressure as the driving force, when storing oil, the vacuum tank is maintained at a negative pressure through the negative pressure generating unit, so that the oil in the oil inlet pipeline is sucked into the oil tank; when discharging oil, it is connected with the oil tank through the exhaust pipeline, so that the oil in the oil tank is discharged from the oil outlet pipeline; a cylinder-driven quantitative pump oil unit is provided on the oil outlet pipeline.

[0015] In one embodiment, a liquid level measuring port is provided on the top of the oil tank, and an explosion-proof liquid level gauge is installed on the liquid level measuring port.

[0016] In one embodiment, the two ends of the oil outlet pipeline are respectively connected to the bottom of the oil tank and the oil gun to be used or the terminal oil supply pipeline; on the oil outlet pipeline, along the direction of oil discharge, a manual ball valve, a filter, a first oil-draining pneumatic ball valve, the metering pump oil unit and a second oil-draining pneumatic ball valve are sequentially provided; the manual ball valve is arranged adjacent to the oil tank, and the second oil-draining pneumatic ball valve is arranged adjacent to the oil gun to be used or the terminal oil supply pipeline.

[0017] In one embodiment, the metered oil pumping unit includes an oil suction cylinder and an oil pumping drive cylinder; the oil suction inlet end of the oil suction cylinder is connected to the oil outlet pipeline through a pipeline tee; the oil pumping drive cylinder is installed on the oil suction outlet end of the oil suction cylinder, and the telescopic rod of the oil pumping drive cylinder extends from the oil suction outlet end into the oil suction cylinder and is connected to the piston of the oil suction cylinder.

[0018] In one embodiment, both ends of the oil inlet pipeline are respectively connected to the top of the oil tank and the external oil reservoir to be connected; an oil inlet pneumatic ball valve is installed on the oil inlet pipeline.

[0019] In one embodiment, the circulating negative pressure pipeline includes a tank connecting branch and a circulating branch; the tank connecting branch connects the oil tank and the vacuum tank, and a diverter tee is installed between the vacuum tank and the oil tank; the diverter tee is connected to one end of the circulating branch, and the other end of the circulating branch is connected to the vacuum tank; on the tank connecting branch, a pneumatically controlled first circulating ball valve is provided between the diverter tee and the vacuum tank; on the circulating branch, a pneumatically controlled second circulating ball valve and a third circulating ball valve are provided, the second circulating ball valve is arranged adjacent to the diverter tee, and the third circulating ball valve is arranged adjacent to the vacuum tank; in the circulating branch, the pipeline connecting the second circulating ball valve and the third circulating ball valve is a circulating measuring tube, one end of the circulating measuring tube is connected to the second circulating ball valve, the third circulating ball valve is connected to the pipe wall interface of the circulating measuring tube, and the other end of the circulating measuring tube is installed with an explosion-proof pressure gauge.

[0020] In one embodiment, an exhaust tee is provided on the circulation branch, and the exhaust tee is connected to the second circulation ball valve, the circulation measuring tube and the exhaust pipeline; and a pneumatically controlled exhaust ball valve is installed on the exhaust pipeline.

[0021] In one embodiment, the exhaust ball valve is a three-way ball valve; the three-way ball valve is also connected to a boosting unit; the three-way ball valve can control the opening and closing of the exhaust pipeline and the exhaust tee, and the opening and closing of the exhaust tee and the boosting unit; when the exhaust pipeline is connected to the oil tank and the oil needs to be drained quickly, the three-way ball valve controls the exhaust tee to be connected to the boosting unit, and the oil tank is pressurized through the boosting unit, so that the oil in the oil tank is quickly discharged from the oil outlet pipeline.

[0022] In one embodiment, the circulating air extraction pipeline includes an air extraction control branch, an auxiliary branch and a first three-way connector, the air extraction control branch and the auxiliary branch are connected end to end, and the ends of the air extraction control branch and the auxiliary branch in the vertical direction are connected through the first three-way connector and connected to the oil-water separator; on the air extraction control branch, a second three-way connector, a third three-way connector and a fourth three-way connector are installed in sequence from bottom to top in the vertical direction; one end of the second three-way connector and the fourth three-way connector are the negative pressure ends respectively, connected to the negative pressure generating unit; the third One end of the three-way connector is the exhaust end, which is connected to the vacuum tank; on the exhaust control branch, the first control ball valve, the second control ball valve, the third control ball valve and the fourth control ball valve are installed in sequence from bottom to top in the vertical direction; the first control ball valve is arranged between the first three-way connector and the second three-way connector; the second control ball valve is arranged between the second three-way connector and the third three-way connector; the third control ball valve is arranged between the third three-way connector and the fourth three-way connector; the fourth control ball valve is arranged between the fourth three-way connector and the connecting elbow connected to the auxiliary branch.

[0023] In one embodiment, the negative pressure generating unit includes an air suction cylinder and an air suction drive cylinder; the first air suction side of the air suction cylinder is connected to the air extraction control branch through the second three-way connector; the second air suction side of the air suction cylinder is connected to the air extraction control branch through the fourth three-way connector; the air suction drive cylinder is installed under the air suction cylinder, and the telescopic rod of the air suction drive cylinder extends into the air suction cylinder and is connected to the piston of the air suction cylinder.

[0024] The beneficial effects of the present invention are as follows:

[0025] The present invention provides a non-electrically powered oil supply system that adopts a pneumatic drive mode, thereby avoiding the risk of fire or explosion caused by electrical failure in traditional electric oil supply devices and greatly improving safety. The entire oil supply system does not require a motor, an electronic control unit, and related electrical components, making it more reliable when used in flammable and explosive environments such as automobile production plants.

[0026] By cooperating with the negative pressure generating unit and the vacuum tank, the negative pressure in the oil tank is always maintained when the oil tank is storing oil, thereby achieving efficient suction of fuel from the oil inlet pipeline into the oil tank, thereby achieving efficient and rapid fuel transportation.

[0027] In addition, the system utilizes the circulating air extraction pipeline, the negative pressure generating unit and the oil-water separator to work together to maintain the negative pressure in the vacuum tank and the oil tank, and effectively discharge the gas generated by the volatilization of the fuel in the oil tank in the vacuum tank, thereby reducing the pressure in the vacuum tank and the oil tank, and avoiding the safety hazard caused by excessive pressure due to fuel volatilization; at the same time, the circulating air extraction pipeline, the vacuum tank and the oil tank accelerate the suction of fuel when filling with fuel, and maintain negative pressure and discharge the gas generated by fuel volatilization when storing fuel, thereby forming a synergistic effect of efficiently transporting fuel and safely storing fuel.

[0028] At the same time, the system utilizes the exhaust pipe and the oil tank. When draining oil, the system is connected to the oil tank through the exhaust pipe, and the connection between the oil tank and the vacuum tank is closed to restore the positive pressure of the oil tank, so that the oil in the oil tank flows by gravity and is discharged from the oil outlet pipe.

[0029] In addition, the metering oil pump unit driven by the cylinder can be used to control the fuel supply flow, making the fuel supply process more accurate and reducing fuel waste. The metering oil pump unit can also be used to provide additional suction for the fuel to be discharged from the oil tank with the power driven by the cylinder, and to provide pressurized pressure for the fuel to be discharged from the metering oil pump unit, thereby speeding up the fuel discharge and supply, thereby improving the filling efficiency.

[0030] Compared to traditional electric fuel supply devices, the pneumatic fuel supply structure of the non-electrically driven fuel supply system of the present invention features a rational design, simple operation, and no need for a complex electrical control system, thus reducing equipment maintenance costs while improving system stability and service life. Through a controllable opening and closing pipeline design, the system achieves efficient coordination among multiple components, including the oil tank, the oil inlet pipeline, the exhaust pipeline, the circulating negative pressure pipeline, the metered oil pumping unit, the circulating air extraction pipeline, the negative pressure generating unit, the vacuum tank, and the oil-water separator, making the fuel supply process smoother. This system is suitable for fuel supply scenarios requiring high safety and stability, such as automobile production plants and enclosed areas.

[0031] In summary, the non-electrical power driven oil supply system of the present invention has:

[0032] (1) High safety: The circulating negative pressure pipeline, the quantitative oil pump unit, the circulating air extraction pipeline, the negative pressure generating unit and the vacuum tank are used to drive the fuel delivery by air pressure in a one-pump-one-suction-one-pressure manner, thereby avoiding the risk of fire or explosion caused by electrical failure, and is suitable for flammable and explosive environments;

[0033] (2) High fuel supply efficiency: The negative pressure of the vacuum tank is used to maintain the fuel suction process, and combined with the quantitative oil pump unit, accurate fuel supply is achieved, thereby improving the filling efficiency;

[0034] (3) Effective control of volatile gas: The exhaust pipe, the circulating negative pressure pipe, the circulating air extraction pipe and the oil-water separator work in coordination with each other to timely release the volatile gas in the fuel tank during oil storage and oil supply, thereby reducing safety hazards;

[0035] (4) Simple structure and low maintenance cost: No motor and electronic control system are required, which reduces equipment maintenance costs and improves the reliability and service life of the oil supply system;

[0036] (5) Strong applicability: It can be widely used in special scenarios such as automobile production plants and enclosures that require non-electric fuel supply, ensuring a safe and stable fuel supply process. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 2. This is a schematic structural diagram from an axonometric perspective of a non-electrically driven oil supply system according to a first embodiment of the present invention;

[0039] Figure 2 2 is a front view schematic structural diagram of a non-electrical power driven oil supply system according to a first embodiment of the present invention;

[0040] Figure 3 1 is a schematic cross-sectional view of the circulating air extraction pipeline and the negative pressure generating unit according to the first embodiment of the present invention;

[0041] Figure 4 It is a partial structural diagram of the non-electrical power driven oil supply system according to the second embodiment of the present invention.

[0042] The accompanying drawings are numerals as follows:

[0043] 1. Oil tank; 11. Liquid level measuring port; 12. Explosion-proof liquid level gauge; 13. Inspection hole;

[0044] 2. Oil outlet pipeline; 21. Manual ball valve; 22. Filter; 23. First row oil pneumatic ball valve; 24. Second row oil pneumatic ball valve;

[0045] 3. Oil inlet pipeline; 31. Oil inlet pneumatic ball valve;

[0046] 4. Exhaust pipe; 41. Exhaust ball valve;

[0047] 5. Circulation negative pressure pipeline; 51. Tank connection branch; 511. Diversion tee; 512. First circulation ball valve; 52. Circulation branch; 521. Second circulation ball valve; 522. Third circulation ball valve; 523. Exhaust tee; 53. Circulation measuring pipe; 54. Explosion-proof barometer;

[0048] 6. Dosing pump unit; 61. Suction cylinder; 611. Suction inlet; 612. Suction outlet; 62. Pump drive cylinder; 63. Pipeline tee;

[0049] 7. Vacuum tank;

[0050] 8. Circulating air extraction pipeline; 81. Air extraction control branch; 811. First control ball valve; 812. Second control ball valve; 813. Third control ball valve; 814. Fourth control ball valve; 82. Auxiliary branch; 83. Oil-water separator; 84. First three-way connector; 85. Second three-way connector; 86. Third three-way connector; 87. Fourth three-way connector;

[0051] 9. Negative pressure generating unit; 91. Suction cylinder; 911. First suction side; 912. Second suction side; 92. Suction drive cylinder;

[0052] 10. Booster unit. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0054] In view of this, a non-electrically powered oil supply system is provided in a specific embodiment, which effectively solves the technical problems of the existing oil supply device, such as easy electrical fire, insufficient control of oil vapor volatilization pressure and complex oil supply system.

[0055] Figure 1 2. This is a schematic structural diagram from an axonometric perspective of a non-electrically driven oil supply system according to a first embodiment of the present invention; Figure 2 It is a front view structural schematic diagram of the non-electrical power driven oil supply system according to the first embodiment of the present invention.

[0056] The first implementation of the oil supply system without electrical power is as follows Figure 1 and Figure 2As shown, it includes an oil tank 1, an oil outlet pipeline 2 is installed at the bottom of the oil tank 1, and an oil inlet pipeline 3, an exhaust pipeline 4 and a circulating negative pressure pipeline 5 are provided on the top; the exhaust pipeline 4 is connected to the circulating negative pressure pipeline 5 in a controllable opening and closing manner; and a vacuum tank 7, the vacuum tank 7 is connected to the top of the oil tank 1 and the circulating negative pressure pipeline 5 in a controllable opening and closing manner; and a circulating air extraction pipeline 8, the circulating air extraction pipeline 8 is provided with an air extraction end, an exhaust end and two negative pressure ends; the air extraction end is connected to the vacuum tank 7, and the exhaust end is connected to an oil-water separator 83; and a cylinder-driven negative pressure generating unit 9, the negative pressure generating unit 9 is connected Two negative pressure ends; a plurality of pneumatically controlled switches are provided on the circulating exhaust pipeline 8, which cyclically switch the connecting pipelines of the negative pressure generating unit 9 and the oil-water separator 83 and the vacuum tank 7 through the two negative pressure ends, so that the negative pressure generating unit 9 can extract gas from the vacuum tank 7 and discharge it to the exhaust end in one pump and one suction; with air pressure as the driving force, when storing oil, the vacuum tank 7 is maintained at a negative pressure through the negative pressure generating unit 9, so that the oil in the oil inlet pipeline 3 is sucked into the oil tank 1; when discharging oil, it is connected with the oil tank 1 through the exhaust pipeline 4, so that the oil in the oil tank 1 is discharged from the oil outlet pipeline 2; a cylinder-driven quantitative pump oil unit 6 is provided on the oil outlet pipeline 2.

[0057] The cylinder-driven metering oil pump unit 6 provided on the oil outlet pipeline 2 is used to accelerate and pressurize the oil in the oil tank 1 and discharge it from the oil outlet pipeline 2 .

[0058] The specific structure of the oil inlet pipeline 3 is set as follows: the two ends of the oil inlet pipeline 3 are respectively connected to the top of the oil tank 1 and the external oil reservoir to be connected; an oil inlet pneumatic ball valve 31 is installed on the oil inlet pipeline 3.

[0059] A control cabinet is set up outside the automobile factory, that is, away from a location without an electrical power drive oil supply system. A control module is set up in the control cabinet. The control module is electrically connected to the pneumatic control island. A plurality of solenoid valves are set up in the pneumatic control island. The plurality of solenoid valves are respectively connected to the pneumatic components of the oil inlet pipeline 3, the exhaust pipeline 4, the circulating negative pressure pipeline 5, the quantitative pump oil unit 6, the circulating air extraction pipeline 8 and the negative pressure generating unit 9 through air pipes.

[0060] Specifically, the pneumatic components include a plurality of pneumatically controlled ball valves, a plurality of driving cylinders, and the like.

[0061] In order to measure the amount of fuel in the oil tank 1 at any time, a liquid level measuring port 11 is provided on the top of the oil tank 1 , and an explosion-proof liquid level gauge 12 is installed in the liquid level measuring port 11 .

[0062] During application, the explosion-proof liquid level gauge 12 is electrically connected to the control module, and the fuel quantity data in the oil tank 1 is obtained in real time through the explosion-proof liquid level gauge 12. The collected fuel quantity data is fed back to the control module, and the control module controls the pneumatic control island through the built-in algorithm. The pneumatic control island controls the oil inlet pipeline 3, the exhaust pipeline 4, the circulating negative pressure pipeline 5, the quantitative oil pump unit 6, the circulating air extraction pipeline 8 and the pneumatic components of the negative pressure generating unit 9 through multiple solenoid valves, thereby realizing the air extraction action of the vacuum tank 7, the action of assisting the oil in the oil inlet pipeline 3 to be sucked into the oil tank 1, the oil discharge action of the exhaust pipeline 4 and the oil tank 1, and the accelerated oil discharge action of the quantitative oil pump unit 6 and the oil tank 1.

[0063] The tank wall of the oil tank 1 is also provided with an inspection hole 13 for cleaning the inside of the oil tank 1 when the oil supply system is deactivated without electrical power, so as to remove impurities deposited in the oil tank 1 by the fuel.

[0064] The non-electrically powered fuel supply system uses pneumatic drive, avoiding the risk of fire or explosion caused by electrical failure in traditional electric fuel supply devices, greatly improving safety. The entire fuel supply system does not require a motor, electronic control unit, or related electrical components, making it more reliable when used in flammable and explosive environments such as automobile production plants.

[0065] By cooperating with the negative pressure generating unit 9 and the vacuum tank 7, the oil tank 1 always maintains a negative pressure when storing oil, thereby achieving efficient suction of fuel from the oil inlet pipe 3 into the oil tank 1, and realizing efficient and fast fuel transportation.

[0066] In addition, the system utilizes the circulating air extraction pipeline 8, the negative pressure generating unit 9 and the oil-water separator 83 to work together to maintain the negative pressure in the vacuum tank 7 and the oil tank 1, and effectively discharge the gas generated by the volatilization of the fuel in the oil tank 1 in the vacuum tank 7, thereby reducing the pressure in the vacuum tank 7 and the oil tank 1, and avoiding the safety hazard caused by excessive pressure due to fuel volatilization; at the same time, the circulating air extraction pipeline 8, the vacuum tank 7 and the oil tank 1 accelerate the suction of fuel when filling the fuel, and maintain the negative pressure and discharge the gas generated by the volatilization of the fuel when storing the fuel, thereby forming a synergistic effect of efficiently transporting the fuel and safely storing the fuel.

[0067] At the same time, the system utilizes the exhaust pipe 4 and the oil tank 1. When draining oil, the exhaust pipe 4 is connected to the oil tank 1, and the connection between the oil tank 1 and the vacuum tank 7 is closed to restore the positive pressure of the oil tank 1, so that the oil in the oil tank 1 flows by gravity and is discharged from the oil outlet pipe 2.

[0068] In addition, the cylinder-driven metering pump unit 6 can be used to control the fuel supply flow, making the fuel supply process more accurate and reducing fuel waste. The metering pump unit 6 can also be used with the power driven by the cylinder to provide additional suction for the fuel to be discharged from the oil tank 1, and to provide pressurized pressure for the fuel to be discharged from the metering pump unit 6, thereby speeding up the fuel discharge and supply, thereby improving the filling efficiency.

[0069] Compared to traditional electric fuel supply devices, the pneumatic fuel supply structure of the non-electrically driven fuel supply system of the present invention features a rational design, simple operation, and no need for a complex electrical control system, thus reducing equipment maintenance costs while improving system stability and service life. Through a controllable opening and closing pipeline design, the system achieves efficient coordination of multiple components, including the oil tank 1, oil inlet pipeline 3, exhaust pipeline 4, circulating negative pressure pipeline 5, metered oil pump unit 6, circulating air extraction pipeline 8, negative pressure generating unit 9, vacuum tank 7, and oil-water separator 83, making the fuel supply process smoother. The system is suitable for fuel supply scenarios requiring high safety and stability, such as automobile production plants and enclosed areas.

[0070] As an optional implementation method

[0071] Regarding the specific structure of the above-mentioned circulating negative pressure pipeline 5, this embodiment Figure 1 and Figure 2 As shown, the circulating negative pressure pipeline 5 includes a tank connecting branch 51 and a circulating branch 52; the tank connecting branch 51 connects the oil tank 1 and the vacuum tank 7, and a diverter tee 511 is installed between the vacuum tank 7 and the oil tank 1; the diverter tee 511 is connected to one end of the circulating branch 52, and the other end of the circulating branch 52 is connected to the vacuum tank 7; on the tank connecting branch 51, a pneumatically controlled first circulating ball valve 512 is provided between the diverter tee 511 and the vacuum tank 7; on the circulating branch 52, a pneumatically controlled second circulating ball valve 512 is provided. The circulating ball valve 521 and the third circulating ball valve 522, the second circulating ball valve 521 is arranged adjacent to the diversion tee 511, and the third circulating ball valve 522 is arranged adjacent to the vacuum tank 7; in the circulating branch 52, the pipeline connecting the second circulating ball valve 521 and the third circulating ball valve 522 is a circulating measuring tube 53, one end of the circulating measuring tube 53 is connected to the second circulating ball valve 521, the third circulating ball valve 522 is connected to the pipe wall interface of the circulating measuring tube 53, and the other end of the circulating measuring tube 53 is installed with an explosion-proof pressure gauge 54.

[0072] Specifically, regarding the specific structure of the exhaust pipe 4 and the specific connection structure of the exhaust pipe 4 and the circulating negative pressure pipe 5, this embodiment is as follows: Figure 1 and Figure 2 As shown, an exhaust tee 523 is provided on the circulation branch 52, and the exhaust tee 523 connects the second circulation ball valve 521, the circulation measuring tube 53 and the exhaust pipeline 4; a pneumatically controlled exhaust ball valve 41 is installed on the exhaust pipeline 4.

[0073] During application, before starting to store oil, the oil outlet pipeline 2, the oil inlet pipeline 3 and the exhaust pipeline 4 are closed by starting control, and at least the first circulation ball valve 512 and the second circulation ball valve 521 or the third circulation ball valve 522 of the tank connection branch 51 of the circulating negative pressure pipeline 5 are opened, and the pneumatic ball valves of the tank connection branch 51 and the circulation branch 52 can also be opened at the same time to open the channel between the oil tank 1 and the vacuum tank 7, and let the explosion-proof barometer 54 on the circulation measuring tube 53 measure the air pressure value of the vacuum tank 7; then control the circulating air extraction pipeline 8 and the negative pressure generating unit 9 to start extracting air from the vacuum tank 7, so that the air pressure in the vacuum tank 7 and the oil tank 1 is reduced and a negative pressure is formed.

[0074] Since the oil tank 1 and the vacuum tank 7 are connected at least through the tank connecting branch 51 of the circulating negative pressure pipeline 5, the explosion-proof pressure gauge 54 can measure the overall air pressure of the vacuum tank 7 and the oil tank 1; after the overall air pressure of the vacuum tank 7 and the oil tank 1 reaches the preset negative pressure value, the tank connecting branch 51 is temporarily closed, and the oil inlet pipeline 3 is opened. When the explosion-proof liquid level gauge 12 measures the fuel amount data in the oil tank 1 and displays that the oil tank 1 has been filled with normal fuel, the tank connecting branch 51 is reopened at this time, and the circulating branch 52 is opened at the same time. The circulating air extraction pipeline 8 and the negative pressure generating unit 9 continue to work. When the explosion-proof liquid level gauge 12 measures that the oil amount in the oil tank 1 reaches 90%, the circulating air extraction pipeline 8 and the negative pressure generating unit 9 are automatically paused and the oil inlet pipeline 3 is closed; the oil storage state is entered, and oil supply and discharge are waited for demand.

[0075] After the oil tank 1 enters the oil storage state, the tank connection branch 51 is closed and the circulation branch 52 is not closed. When the explosion-proof pressure gauge 54 detects that the air pressure of the vacuum tank 7 drops by more than 30%, the third circulation ball valve 522 and the second circulation ball valve 521 remain open, and the circulation negative pressure pipeline 5 and the negative pressure generating unit 9 are opened to extract the volatilized gas of the fuel and restore the air pressure of the vacuum tank 7 to the predetermined negative pressure value.

[0076] Regarding the specific control structure of the oil outlet pipeline 2, this embodiment is as follows: Figure 1 and Figure 2 As shown, the two ends of the oil outlet pipeline 2 are respectively connected to the bottom of the oil tank 1 and the oil gun to be used or the terminal oil supply pipeline; on the oil outlet pipeline 2, along the direction of oil discharge, a manual ball valve 21, a filter 22, a first oil discharge pneumatic ball valve 23, a metering pump oil unit 6 and a second oil discharge pneumatic ball valve 24 are sequentially provided; the manual ball valve 21 is arranged adjacent to the oil tank 1, and the second oil discharge pneumatic ball valve 24 is arranged adjacent to the oil gun to be used or the terminal oil supply pipeline.

[0077] Specifically, the filter 22 is a Y-shaped filter 22 .

[0078] Among them, when oil storage is put into use, the manual ball valve 21 can be kept normally open, and oil supply is carried out through the first oil-discharging pneumatic ball valve 23, the quantitative oil pump unit 6 and the second oil-discharging pneumatic ball valve 24 when oil supply is required.

[0079] Regarding the specific structure of the quantitative pump oil unit 6, this embodiment Figure 1 and Figure 2 As shown, the metered oil pumping unit 6 includes an oil suction cylinder 61 and an oil pumping driving cylinder 62; the oil suction inlet end 611 of the oil suction cylinder 61 is connected to the oil outlet pipeline 2 through a pipeline tee 63; the oil pumping driving cylinder 62 is installed on the oil suction outlet end 612 of the oil suction cylinder 61, and the telescopic rod of the oil pumping driving cylinder 62 extends from the oil suction outlet end 612 into the oil suction cylinder 61 and is connected to the piston of the oil suction cylinder 61.

[0080] During application, after receiving the oil supply demand, the first circulation ball valve 512 of the tank connection branch 51 is closed, the third circulation ball valve 522 of the circulation branch 52 is closed, and the exhaust pipe 4 is opened; when starting to pump oil, the first oil-discharging pneumatic ball valve 23 is first controlled to open, and then the oil-pumping driving cylinder 62 of the quantitative oil-pumping unit 6 is controlled to make the oil-suction cylinder 61 suck the fuel from the oil tank 1. After the oil-suction cylinder 61 sucks in enough fuel, the first oil-discharging pneumatic ball valve 23 is closed, and then the second oil-discharging pneumatic ball valve 24 is opened, and the oil-pumping driving cylinder 62 of the quantitative oil-pumping unit 6 is made to pressurize the fuel, so that the oil-suction cylinder 61 sprays out the pressurized fuel, and so on and so forth, forming a continuous pressurized oil supply action.

[0081] Figure 1 2. This is a schematic structural diagram from an axonometric perspective of a non-electrically driven oil supply system according to a first embodiment of the present invention; Figure 2 2 is a front view schematic structural diagram of a non-electrical power driven oil supply system according to a first embodiment of the present invention; Figure 3 It is a schematic cross-sectional structural diagram of the circulating air extraction pipeline and the negative pressure generating unit according to the first embodiment of the present invention.

[0082] Regarding the specific structure of the circulating air extraction pipeline 8, this embodiment Figures 1 to 3As shown, the circulating air extraction pipeline 8 includes an air extraction control branch 81, an auxiliary branch 82 and a first three-way connector 84. The air extraction control branch 81 and the auxiliary branch 82 are connected end to end, and the ends of the air extraction control branch 81 and the auxiliary branch 82 in the vertical direction are connected by the first three-way connector 84 and connected to the oil-water separator 83; on the air extraction control branch 81, a second three-way connector 85, a third three-way connector 86 and a fourth three-way connector 87 are installed in sequence from bottom to top in the vertical direction; one end of the second three-way connector 85 and the fourth three-way connector 87 is a negative pressure end, connected to the negative pressure generating unit 9; the third three-way connector 8 One end of 6 is the exhaust end, which is connected to the vacuum tank 7; on the air control branch, the first control ball valve 811, the second control ball valve 812, the third control ball valve 813 and the fourth control ball valve 814 are installed in sequence from bottom to top in the vertical direction; the first control ball valve 811 is arranged between the first three-way connector 84 and the second three-way connector 85; the second control ball valve 812 is arranged between the second three-way connector 85 and the third three-way connector 86; the third control ball valve 813 is arranged between the third three-way connector 86 and the fourth three-way connector 87; the fourth control ball valve 814 is arranged between the fourth three-way connector 87 and the connecting elbow connected to the auxiliary branch 82.

[0083] Specifically, regarding the specific structure of the negative pressure generating unit 9 and the specific connection structure between the negative pressure generating unit 9 and the circulating exhaust pipe 8, this embodiment is as follows: Figures 1 to 3 As shown, the negative pressure generating unit 9 includes an air suction cylinder 91 and an air suction drive cylinder 92; the first air suction side 911 of the air suction cylinder 91 is connected to the air extraction control branch 81 through a second three-way connector 85; the second air suction side 912 of the air suction cylinder 91 is connected to the air extraction control branch 81 through a fourth three-way connector 87; the air suction drive cylinder 92 is installed under the air suction cylinder 91, and the telescopic rod of the air suction drive cylinder 92 extends into the air suction cylinder 91 and is connected to the piston of the air suction cylinder 91.

[0084] During application, when it is necessary to extract the gas from the vacuum tank 7 and the oil tank 1, or the gas in the vacuum tank 7, the circulating exhaust pipeline 8 and the negative pressure generating unit 9 are opened to enter the exhaust step.

[0085] At this time, the suction drive cylinder 92 is in the initial position of retracting the telescopic rod, and the piston in the suction cylinder 91 is also located at the first suction side 911 along with the telescopic rod. First, the third control ball valve 813 is closed, the fourth control ball valve 814 is opened, the second control ball valve 812 is opened, and the first control ball valve 811 is closed, and the suction drive cylinder 92 is started to be driven. The telescopic rod of the suction drive cylinder 92 is extended to push the piston to move to the second suction side 912, and the gas in the suction cylinder 91 is pushed out. The pushed out gas enters the exhaust through the fourth three-way connector 87. The control branch 81 passes through the fourth control ball valve 814, enters the auxiliary branch 82, and then enters the air extraction control branch 81 and is cut off by the first control ball valve 811. It enters the oil-water separator 83 through the first three-way connector 84 and is finally discharged. At the same time, the gas in the vacuum tank 7 enters the air extraction control branch 81 through the third three-way connector 86 and is cut off by the third control ball valve 813. It then passes through the second control ball valve 812 and the second three-way connector 85 in sequence and enters the suction cylinder 91, completing the first round of negative pressure suction and exhaust steps.

[0086] At this time, the suction drive cylinder 92 is in the extended position of the telescopic rod, and the piston in the suction cylinder 91 is also located at the second suction side 912 along with the telescopic rod. First, the second control ball valve 812 is closed, the fourth control ball valve 814 is closed, the first control ball valve 811 is opened, and the third control ball valve 813 is opened. Then the suction drive cylinder 92 is driven, the telescopic rod of the suction drive cylinder 92 is retracted, and the piston in the suction cylinder 91 also moves from the second suction side 912 to the first suction side 911. At this time, the gas in the suction cylinder 91 located at the first suction side 911 is discharged from the first suction side 911 through the second three-way connector 85, the first control ball valve 811 and the first three-way connector 84, and enters the oil-water separator 83, and finally the gas is discharged. At the same time, the gas in the vacuum tank 7 enters the suction cylinder 91 through the third three-way connector 86, the third control ball valve 813 and the fourth three-way connector 87, completing the second round of negative pressure suction and exhaust steps.

[0087] The first round of negative pressure suction and exhaust steps and the second round of negative pressure suction and exhaust steps are cycled, thereby controlling the multiple pneumatically controlled switches on the circulating exhaust pipeline 8, and cyclically switching the connecting pipelines of the negative pressure generating unit 9 and the oil-water separator 83 and the vacuum tank 7 through the two negative pressure ends, so that the negative pressure generating unit 9 extracts gas from the vacuum tank 7 and discharges it to the exhaust end with each suction and exhaust, thereby achieving efficient suction of the vacuum tank 7 and the oil tank 1, or the gas in the vacuum tank 7, forming a negative pressure state in the vacuum tank 7, filling the oil tank 1 through the oil inlet pipeline 3, and providing pneumatic power.

[0088] Figure 4 It is a partial structural diagram of the non-electrical power driven oil supply system according to the second embodiment of the present invention.

[0089] The second embodiment of the oil supply system without electrical power is as follows Figure 4 As shown, the difference between this embodiment and the first embodiment is that the exhaust ball valve 41 is a three-way ball valve; the three-way ball valve is also connected to the boosting unit 10.

[0090] Specifically, the three-way ball valve can control the opening and closing of the exhaust pipeline 4 and the exhaust three-way valve 523 , and the opening and closing of the exhaust three-way valve 523 and the supercharging unit 10 .

[0091] During application, when the exhaust pipe 4 is connected to the oil tank 1 and oil needs to be drained quickly, the three-way ball valve controls the exhaust tee 523 to be connected to the boosting unit 10, and the boosting unit 10 boosts the pressure in the oil tank 1, so that the oil in the oil tank 1 is quickly discharged from the oil outlet pipe 2.

[0092] The technical features of the above embodiments may be combined arbitrarily. To simplify the description, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. A non-electrical power driven oil supply system, characterized in that: The oil tank comprises an oil outlet pipeline installed at the bottom, an oil inlet pipeline, an exhaust pipeline and a circulating negative pressure pipeline installed at the top; the exhaust pipeline is connected to the circulating negative pressure pipeline in a controllable opening and closing manner; and a vacuum tank, the vacuum tank being connected to the top of the oil tank and the circulating negative pressure pipeline in a controllable opening and closing manner; and a circulating air extraction pipeline, the circulating air extraction pipeline is provided with an air extraction end, an air exhaust end and two negative pressure ends; the air extraction end is connected to the vacuum tank, and the air exhaust end is connected to an oil-water separator; and a negative pressure generating unit driven by a cylinder, the negative pressure generating unit being connected to the two negative pressure ends; The circulating exhaust pipeline is provided with a plurality of pneumatically controlled switches, which cyclically switch the connection pipelines between the negative pressure generating unit and the oil-water separator and the vacuum tank through the two negative pressure ends, so that the negative pressure generating unit can extract gas from the vacuum tank and discharge it to the exhaust end in each pumping and suction. With air pressure as the driving force, when storing oil, the vacuum tank is maintained at a negative pressure through the negative pressure generating unit, so that the oil in the oil inlet pipeline is sucked into the oil tank; when discharging oil, the exhaust pipeline is connected to the oil tank, so that the oil in the oil tank is discharged from the oil outlet pipeline; The oil outlet pipeline is provided with a cylinder-driven quantitative oil pump unit; The circulating negative pressure pipeline includes a tank connecting branch and a circulating branch; the tank connecting branch connects the oil tank and the vacuum tank, and a diverting tee is installed between the vacuum tank and the oil tank; The diverter tee is connected to one end of the circulation branch, and the other end of the circulation branch is connected to the vacuum tank; On the tank connection branch, a pneumatically controlled first circulation ball valve is provided between the diversion tee and the vacuum tank; A pneumatically controlled second circulation ball valve and a third circulation ball valve are provided on the circulation branch, the second circulation ball valve is arranged adjacent to the diversion tee, and the third circulation ball valve is arranged adjacent to the vacuum tank; In the circulation branch, the pipeline connecting the second circulation ball valve and the third circulation ball valve is a circulation measuring pipe, one end of the circulation measuring pipe is connected to the second circulation ball valve, the third circulation ball valve is connected to the pipe wall interface of the circulation measuring pipe, and the other end of the circulation measuring pipe is installed with an explosion-proof pressure gauge; The circulating air extraction pipeline includes an air extraction control branch, an auxiliary branch, and a first three-way connector. The air extraction control branch and the auxiliary branch are connected end to end, and the ends of the air extraction control branch and the auxiliary branch in the vertical direction are connected by the first three-way connector and connected to the oil-water separator. On the exhaust control branch, a second three-way connector, a third three-way connector and a fourth three-way connector are installed in sequence from bottom to top in the vertical direction; One end of the second three-way connector and the fourth three-way connector are respectively the negative pressure ends, connected to the negative pressure generating unit; One end of the third three-way connector is the air extraction end, which is connected to the vacuum tank.

2. The non-electrical power driven oil supply system according to claim 1, characterized in that: A liquid level measuring port is provided on the top of the oil tank, and an explosion-proof liquid level gauge is installed on the liquid level measuring port.

3. The non-electrical power driven oil supply system according to claim 1, characterized in that: The two ends of the oil outlet pipeline are respectively connected to the bottom of the oil tank and the oil gun or the terminal oil supply pipeline to be used; On the oil outlet pipeline, along the oil discharge direction, a manual ball valve, a filter, a first oil discharge pneumatic ball valve, the quantitative oil pump unit and a second oil discharge pneumatic ball valve are sequentially provided; The manual ball valve is arranged adjacent to the oil tank, and the second oil-draining pneumatic ball valve is arranged adjacent to the oil gun to be used or the terminal oil supply pipeline.

4. The non-electrical power driven oil supply system according to claim 3, characterized in that: The quantitative oil pumping unit includes an oil suction cylinder and an oil pumping driving cylinder; The oil suction inlet end of the oil suction cylinder is connected to the oil outlet pipeline through a pipeline tee; The oil pump driving cylinder is installed on the oil suction outlet end of the oil suction cylinder, and the telescopic rod of the oil pump driving cylinder extends from the oil suction outlet end into the oil suction cylinder and is connected to the piston of the oil suction cylinder.

5. The non-electrical power driven oil supply system according to claim 1, characterized in that: The two ends of the oil inlet pipeline are respectively connected to the top of the oil tank and the external oil depot to be connected; An oil inlet pneumatic ball valve is installed on the oil inlet pipeline.

6. The non-electrical power driven oil supply system according to claim 1, characterized in that: An exhaust tee is provided on the circulation branch, and the exhaust tee is connected to the second circulation ball valve, the circulation measuring tube and the exhaust pipeline; a pneumatically controlled exhaust ball valve is installed on the exhaust pipeline.

7. The non-electrical power driven oil supply system according to claim 6, characterized in that: The exhaust ball valve is a three-way ball valve; the three-way ball valve is also connected to a booster unit; The three-way ball valve can control the opening and closing of the exhaust pipeline and the exhaust three-way valve, and the opening and closing of the exhaust three-way valve and the supercharging unit; When the exhaust pipeline is connected to the oil tank and oil needs to be discharged quickly, the three-way ball valve controls the exhaust tee to be connected to the booster unit, and the booster unit boosts the pressure in the oil tank, so that the oil in the oil tank is quickly discharged from the oil outlet pipeline.

8. The non-electrical power driven oil supply system according to claim 1, characterized in that: On the air extraction control branch, a first control ball valve, a second control ball valve, a third control ball valve and a fourth control ball valve are installed in sequence from bottom to top in the vertical direction; The first control ball valve is arranged between the first three-way connector and the second three-way connector; the second control ball valve is arranged between the second three-way connector and the third three-way connector; the third control ball valve is arranged between the third three-way connector and the fourth three-way connector; the fourth control ball valve is arranged between the fourth three-way connector and the connecting elbow connected to the auxiliary branch.

9. The non-electrical power driven oil supply system according to claim 8, characterized in that: The negative pressure generating unit includes an air suction cylinder and an air suction drive cylinder; The first suction side of the suction cylinder is connected to the air extraction control branch via the second three-way connector; The second suction side of the suction cylinder is connected to the air extraction control branch via the fourth three-way connector; The air suction drive cylinder is installed under the air suction cylinder, and the telescopic rod of the air suction drive cylinder extends into the air suction cylinder and is connected with the piston of the air suction cylinder.

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