Fuel oil cleaning device for rail working vehicle

Abstract

The utility model discloses a rail work vehicle fuel oil cleaning device which comprises an oil tank used for storing fuel oil, an oil feeding pipe and a fuel oil cleaning device, one end of the oil feeding pipe is located in the oil tank, the other end of the oil feeding pipe is communicated with an oil pump, a coarse filter is arranged at the end of the oil feeding pipe in the oil tank, and the fuel oil cleaning device comprises an oil return pipe and a high-frequency oscillator. The inlet end of the oil return pipe is located below the fuel level in the oil tank, the outlet end of the oil return pipe is located in the oil tank, and the filter, the oil return pump and the high-frequency oscillator are arranged on the oil return pipe and below the fuel level in the oil tank. According to the cleaning device for the rail operation vehicle, impurities in the oil tank are actively filtered and cleaned through the cleaning device, adsorption and sedimentation of the impurities in the oil tank are further reduced, the quality of fuel oil is improved, the cleaning period of the oil tank is prolonged, clean fuel oil is finally provided for an internal combustion engine, and railway transportation safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to vehicle operation and maintenance equipment, and more specifically, the utility model relates to a fuel cleaning device for a rail operation vehicle. Background Art

[0002] In a fuel vehicle, fuel in the fuel tank is pumped out by a fuel pump, supplied to a high-pressure fuel pipe for pressurization, and then injected into a combustion chamber through a high-pressure fuel injector to burn, thereby realizing the rotation of an internal combustion engine; in order to ensure the normal operation of the fuel pump under the designed air pressure, a vent hole is reserved in the fuel tank design to balance the internal and external air pressures of the fuel tank; due to the relatively harsh working environment of most fuel vehicles, after the vehicle runs for a long time, a large number of air suspensions will enter the fuel tank through the vent hole and form impurities at the bottom of the fuel tank after precipitation. If impurities enter the suction pipe when the fuel pump pumps fuel, it will cause blockage of the fuel circuit and fuel injector, and even more seriously, it will cause cylinder scoring of the internal combustion engine; common methods to avoid impurities entering the suction pipe mainly include: installing a filter net on the vent hole and installing a coarse filter at the front end of the suction pipe. However, the filter net can only filter larger impurities and cannot effectively isolate the air suspensions, and impurities will still form at the bottom of the fuel tank and adhere to the fuel tank wall. After being filtered by the coarse filter, the impurities will adhere to the outer surface of the coarse filter. When more impurities adhere to the outer surface of the coarse filter, it will cause insufficient fuel supply by the fuel pump, resulting in insufficient power of the internal combustion engine, unstable speed or even flameout, affecting driving safety. As a railway long-distance transport tractor, in order to ensure a longer operation time, the fuel tank of a rail operation vehicle is larger than that of a common fuel vehicle. Therefore, the accumulated sediment impurities in its fuel tank are more than those of a common fuel vehicle. According to the requirements of the maintenance rules, the fuel tank needs to be cleaned once a year, which can play a certain role in prevention and control, but there are still cases where the fuel circuit of the rail operation vehicle is blocked. At the same time, due to the small size of the fuel tank inspection port and the deep interior of the fuel tank, there are problems of difficult cleaning and incomplete cleaning.

[0003] Chinese patent document CN202311388683.8 discloses a method for cleaning and controlling microorganisms in an aircraft integral fuel tank. First, the fuel in the fuel tank is discharged, and then workers enter the fuel tank interior to remove and clean it. Although this method can clean the interior of the fuel tank, there are great safety problems when workers enter the fuel tank for operation, and the operation space in the fuel tank is limited, so it is impossible to achieve thorough cleaning.

[0004] Chinese patent document CN201911140673.6 discloses an environmental protection type fuel circulation purification device for a locomotive. It pumps out the fuel inside the fuel tank and then filters the fuel through a filtering device. This method can achieve fuel filtration, but the adsorbed substances on the inner wall of the fuel tank and the filter are relatively stubborn and cannot be cleaned by this method.

[0005] Therefore, there is an urgent need to design a set of fuel cleaning devices for the fuel tank of a rail operation vehicle to improve the fuel quality and clean the dirt in the fuel tank. Content of the Utility Model

[0006] The utility model overcomes the deficiencies of the prior art and provides an implementation mode of a fuel cleaning device for a rail operation vehicle, hoping to solve the problem that excessive impurities in the fuel tank are adsorbed on the coarse filter and the fuel tank wall for a long time and cannot provide clean fuel for the internal combustion engine.

[0007] To solve the above technical problems, an implementation mode of the utility model adopts the following technical solutions:

[0008] A fuel cleaning device for a rail operation vehicle includes a fuel tank for storing fuel, an upper oil pipe, and a fuel cleaning device. One end of the upper oil pipe is located inside the fuel tank and the other end is connected to an oil pump. A coarse filter is provided at the end of the upper oil pipe inside the fuel tank. The fuel cleaning device includes a return oil pipe and a high-frequency oscillator. The inlet end of the return oil pipe is located below the fuel level inside the fuel tank, and the outlet end of the return oil pipe is located inside the fuel tank. A filter and a return oil pump are also provided on the return oil pipe. The high-frequency oscillator is arranged below the fuel level inside the fuel tank.

[0009] Optionally: A drip cup is sleeved outside the coarse filter. The drip cup has a plurality of through holes. The top of the drip cup is fixedly connected to the upper oil pipe through a connecting block. The high-frequency oscillator is arranged inside the coarse filter. The inlet end of the return oil pipe is arranged between the drip cup and the coarse filter. It effectively ensures that the return oil pump can quickly suck and filter the impurities near the coarse filter, thereby preventing the impurities on the outer surface of the coarse filter from spreading outside the drip cup after cleaning.

[0010] Optionally: The filter and the return oil pump are arranged outside the fuel tank for easy later maintenance.

[0011] Optionally: The filter is arranged between the inlet end of the return oil pipe and the return oil pump to prevent impurities from damaging the return oil pump.

[0012] Optionally: The filter has a detachable outer cover for easy replacement of the filter.

[0013] Optionally: The outer cover is made of a transparent material to facilitate observing the degree of impurity accumulation in the filter and judging the service life of the filter.

[0014] Optionally: The high-frequency oscillator and the return oil pump are connected in series with the vehicle battery. A toggle switch and a fuse are also connected in series on the electrical connection line of the high-frequency oscillator and the return oil pump for convenient operation.

[0015] Optionally: The high-frequency oscillator is a 24v high-frequency oscillator to meet the voltage of the vehicle battery.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects: The utility model is a cleaning device for a rail operation vehicle. The cleaning device actively filters and cleans impurities in the fuel tank, further reducing the adsorption and sedimentation of impurities in the fuel tank, improving the fuel quality, prolonging the cleaning cycle of the fuel tank, and ultimately providing clean fuel for the internal combustion engine to ensure railway transportation safety. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the utility model;

[0018] Figure 2 It is a schematic circuit control diagram of the utility model;

[0019] Reference numerals: 1, drip cup; 2, upper oil pipe; 3, coarse filter; 4, high-frequency oscillator; 5, toggle switch; 6, filter; 7, return oil pump; 8, fuse; 9, vehicle battery; 10, return oil pipe; 11, fuel tank; 12, connecting block. Detailed Embodiments

[0020] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following embodiments are used to further elaborate on the utility model in detail. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0021] Embodiment 1

[0022] As Figure 1 shown: A fuel cleaning device for a rail operation vehicle includes a fuel tank 11 for storing fuel, an upper oil pipe 2, and a fuel cleaning device. One end of the upper oil pipe 2 is located inside the fuel tank 11 and the other end is connected to an oil pump. A coarse filter 3 is provided at the end of the upper oil pipe 2 inside the fuel tank 11. The oil pump extracts the fuel in the fuel tank 11 through the upper oil pipe 2 to ensure the normal operation of the internal combustion engine. The coarse filter 3 filters the fuel to prevent impurities from entering the upper oil pipe 2. The fuel cleaning device includes a return oil pipe 10 and a high-frequency oscillator 4. The inlet end of the return oil pipe 10 is located below the fuel level inside the fuel tank 11, and the outlet end of the return oil pipe 10 is located inside the fuel tank 11: A filter 6 and a return oil pump 7 are also provided on the return oil pipe 10. The high-frequency oscillator 4 is arranged below the fuel level inside the fuel tank 11; When in use, the ultrasonic vibration wave generated by the high-frequency oscillator 4 is transmitted to the fuel, and then the fuel generates impact force and friction force to uniformly clean the impurities attached to the inner part of the fuel tank 11 and the outer surface of the coarse filter 3, making the impurities suspended in the fuel. The return oil pump 7 extracts the fuel and filters it through the filter 6 and then returns it to the fuel tank 11 to clean the impurities attached to the inner wall of the fuel tank 11 and the surface of the coarse filter 3 through multiple backflows and filtrations.

[0023] An oil strainer 3 is also sleeved with a drip cup 1 on the outside. The drip cup 1 is in a hollow shape, and a plurality of through holes are evenly arranged on its side wall and bottom wall. The top of the drip cup 1 is fixedly connected to the upper oil pipe 2 through a connecting block 12 made of stainless steel. The high-frequency oscillator 4 is arranged inside the oil strainer 3. The inlet end of the return oil pipe 10 is arranged between the drip cup 1 and the oil strainer 3 and is close to the bottom of the drip cup 1. Since there are more impurities attached to the outer surface of the oil strainer 3 than those attached to the side wall of the fuel tank 11, setting the high-frequency oscillator 4 inside the oil strainer 3 can ensure the cleaning effect of the oil strainer 3. In actual use, since the high-frequency oscillator 4 is installed inside the oil strainer 3, the attachments on the surface of the oil strainer 3 will be cleaned first and suspended in the fuel. Setting the inlet of the return oil pipe 10 between the drip cup 1 and the oil strainer 3 can effectively ensure that the return oil pump 7 can quickly suck and filter the impurities near the oil strainer 3, thereby preventing the impurities on the outer surface of the oil strainer 3 from spreading outside the drip cup 1 after being cleaned.

[0024] The filter 6 and the return oil pump 7 are arranged outside the fuel tank 11 and fixedly connected to the vehicle frame. The filter 6 has an outer cover, and the outer cover is made of a transparent material, preferably tempered glass. And the outer cover of the filter 6 is a detachable outer cover, which is convenient for replacing the filter 6 subsequently and also for observing the degree of impurity accumulation in the filter 6 to judge the service life of the filter 6. The filter 6 is arranged between the inlet end of the return oil pipe 10 and the return oil pump 7. Such a setting is beneficial for the fuel to be filtered again by the filter 6 and then pass through the return oil pump 7 when the fuel is circulated and cleaned, thereby avoiding damage to the return oil pump 7 caused by impurities.

[0025] As Figure 2 shown: The high-frequency oscillator 4 and the return oil pump 7 are connected in series with the vehicle battery 9. A toggle switch 5 and a fuse 8 are also connected in series on the electrical connection line of the high-frequency oscillator 4 and the return oil pump 7. The toggle switch 5 is located on the vehicle operation console. The toggle switch 5 controls the opening and closing of the circuits of the high-frequency oscillator 4 and the return oil pump 7. The high-frequency oscillator 4 is a 24v high-frequency oscillator to meet the voltage of the vehicle battery.

[0026] Specific usage method: The fuel cleaning device of the utility model works in the state where the internal combustion engine of the track operation vehicle is turned off; when cleaning, turn on the toggle switch 5 to electrically connect the high-frequency oscillator 4, the fuel return pump 7 to the vehicle battery 9, and the high-frequency oscillator 4 starts to work. The ultrasonic vibration wave generated is transmitted to the fuel, and then the fuel generates impact force and friction force to evenly clean the impurities attached to the outer surface of the coarse filter 3 and the inner part of the fuel tank 11. The impurities are detached from the outer surface of the coarse filter 3 and the inner wall of the fuel tank 11 by the ultrasonic impact and suspended in the fuel. The fuel return pump 7 sucks out the fuel containing impurities, passes through the return oil pipe 10 to the filter 6, and the filter 6 cleans and filters the fuel containing impurities. The cleaned fuel is circulated to the fuel tank 11 through the fuel return pump 7, and the impurities attached to the inner wall of the fuel tank 11 and the surface of the coarse filter 3 are cleaned through multiple backflows and filtrations. After the cleaning is completed, turn off the toggle switch 5, and the high-frequency oscillator 4 and the fuel return pump 7 stop working. When the control circuit is overloaded or short-circuited, the fuse 8 melts, and the high-frequency oscillator 4 and the fuel return pump 7 stop working, playing a role in protecting the control circuit.

[0027] Embodiment 2

[0028] This embodiment is basically the same as Embodiment 1, except that: a three-way pipe is provided on the fuel return pipe of the internal combustion engine, and the outlet end of the fuel return pipe 10 is connected to the three-way pipe. The filtered fuel passes through the three-way pipe to the fuel return pipe of the internal combustion engine and enters the fuel tank. In this way, it is possible to avoid opening holes in the fuel tank 11 again and at the same time avoid having too many pipelines, which may cause difficulties in later maintenance and repair.

[0029] Although the present invention has been described herein with reference to its explanatory embodiments, it should be understood that those skilled in the art can design many other modifications and embodiments that will fall within the scope and spirit of the principles disclosed in this application. More specifically, within the scope of the disclosure of this application, various variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be obvious to those skilled in the art.

Claims

1. A fuel cleaning device for an orbital working vehicle, characterized in that: It includes a fuel tank (11) for storing fuel, an upper fuel pipe (2), and a fuel cleaning device. One end of the upper fuel pipe (2) is located inside the fuel tank (11), and the other end is connected to a fuel pump. A coarse filter (3) is provided at the end of the upper fuel pipe (2) inside the fuel tank (11). The fuel cleaning device includes a return fuel pipe (10) and a high-frequency oscillator (4). The inlet end of the return fuel pipe (10) is located below the fuel level inside the fuel tank (11), and the outlet end of the return fuel pipe (10) is located inside the fuel tank (11). A filter (6) and a return fuel pump (7) are also provided on the return fuel pipe (10). The high-frequency oscillator (4) is arranged below the fuel level inside the fuel tank (11).

2. The fuel cleaning device for a rail operation vehicle according to claim 1, wherein: A drip cup (1) is also sleeved outside the coarse filter (3). The drip cup (1) has a plurality of through holes. The top of the drip cup (1) is fixedly connected to the upper fuel pipe (2) through a connecting block (12). The high-frequency oscillator (4) is arranged inside the coarse filter (3). The inlet end of the return fuel pipe (10) is arranged between the drip cup (1) and the coarse filter (3).

3. The fuel cleaning device for the rail operation vehicle according to claim 1, wherein: The filter (6) and the return fuel pump (7) are arranged outside the fuel tank (11).

4. The fuel cleaning device for the track operation vehicle according to claim 1, wherein: The filter (6) is arranged between the inlet end of the return fuel pipe (10) and the return fuel pump (7).

5. The fuel cleaning device for a rail operation vehicle according to claim 1 or 3, characterized in that: The filter (6) has a detachable outer cover.

6. The fuel cleaning device for the rail operation vehicle according to claim 5, wherein: The outer cover is made of a transparent material.

7. The fuel cleaning device for the track operation vehicle according to claim 1, wherein: The high-frequency oscillator (4) and the return fuel pump (7) are connected in series with the vehicle battery (9). A toggle switch (5) and a fuse (8) are also connected in series on the electrical connection line of the high-frequency oscillator (4) and the return fuel pump (7).

8. The fuel cleaning device for the track operation vehicle according to claim 1, characterized in that: The high-frequency oscillator (4) is a 24v high-frequency oscillator.

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