Automatic pumping device for unit fuel oil

Abstract

The utility model relates to the technical field of fuel oil pumping, in particular to an automatic unit fuel oil pumping device which comprises a box body, a first fuel oil pump is installed on the upper side in the box body, a second fuel oil pump is arranged on the lower side of the first fuel oil pump, and the input end of the first fuel oil pump is connected with a second fuel oil pumping pipe. The input end of the second fuel pump is connected with the second fuel pumping pipe through a fourth fuel pumping pipe, a fourth electromagnetic valve is assembled on the second fuel pumping pipe, the output end of the first fuel pump is connected with a first fuel pumping pipe, and the output end of the second fuel pump is connected with the first fuel pumping pipe through a third fuel pumping pipe. The double-pump parallel operation mode is adopted, the first fuel oil pump and the second fuel oil pump are arranged to form a mutual backup system, when one pump breaks down, the other pump can continue to work, continuous supply of fuel oil and normal operation of unit equipment are guaranteed, shutdown maintenance is not needed, and the cost is reduced. And unit shutdown caused by pump faults is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel pumping, in particular to an automatic fuel pumping device for a unit. Background Art

[0002] The fuel pump is a type of pump used in the fuel supply system. It is mainly used to extract fuel from the fuel tank and deliver it to the engine combustion chamber after pressurization to provide power for the engine. The fuel pump is used to suck the fuel from the fuel tank, filter it through the filter to remove impurities and moisture, and pressurize the fuel to ensure that the fuel can be delivered to the engine combustion chamber with sufficient pressure. When the filter hydraulic pressure increases due to dirt, the amount of fuel supplied to the high-pressure pump is stable to ensure stable operation of the engine. The unit fuel pump is crucial to the normal operation of mechanical equipment.

[0003] The existing fuel pump usually adopts a single-group operation mode to pump fuel. When the fuel pump fails, it needs to be shut down for maintenance, which affects the normal operation of the unit equipment. Therefore, there is an urgent need for an automatic fuel pumping device that will not affect the normal operation of the unit equipment due to shutdown due to failure. Utility Model Content

[0004] In view of the existing deficiencies, the utility model provides an automatic fuel pumping device for a unit, which solves the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A fuel automatic pumping device for a unit comprises a box body and a movable box door, wherein the movable box door is hingedly connected to the front side of the box body, a No. 1 fuel pump is installed on the upper side of the box body, a No. 2 fuel pump is arranged on the lower side of the No. 1 fuel pump, an input end of the No. 1 fuel pump is connected to a second fuel pumping pipe, an input end of the No. 2 fuel pump is connected to the second fuel pumping pipe through a fourth fuel pumping pipe, a fourth solenoid valve is mounted on the second fuel pumping pipe, and the fourth solenoid valve is located on the left side of a connection between the fourth fuel pumping pipe and the second fuel pumping pipe, an output end of the No. 1 fuel pump is connected to a first fuel pumping pipe, and an end of the first fuel pumping pipe extends from the top of the box body and is connected to an external unit device, an output end of the No. 2 fuel pump is connected to the first fuel pumping pipe through a third fuel pumping pipe, a first solenoid valve is mounted on the first fuel pumping pipe, and the first solenoid valve is located on the right side of a connection between the third fuel pumping pipe and the first fuel pumping pipe, a second solenoid valve is mounted on the third fuel pumping pipe, and a third solenoid valve is mounted on the fourth fuel pumping pipe.

[0007] Furthermore, a filter is installed on the top of the box body, the end of the second fuel pumping pipe is fixedly connected to the output end of the filter, the input end of the filter is connected to an oil inlet pipe, and the oil inlet pipe is connected to an external fuel tank.

[0008] Furthermore, an industrial touch screen is installed on the front side of the movable box door, and a controller is installed on the inside of the movable box door. The industrial touch screen is electrically connected to the controller through a wire, and the No. 1 fuel pump, No. 2 fuel pump, the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve are all electrically connected to the controller through a wire.

[0009] Furthermore, a hydraulic sensor is mounted on the first fuel pumping pipe, and the hydraulic sensor is located on the left side of the connection between the third fuel pumping pipe and the first fuel pumping pipe, and the hydraulic sensor is electrically connected to the controller through a wire.

[0010] Furthermore, both left and right sides of the box body are provided with heat dissipation openings with shutter structures.

[0011] Furthermore, a cooling fan is installed inside the heat dissipation port.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model adopts the mode of double pumps running in parallel. The setting of No. 1 fuel pump and No. 2 fuel pump forms a mutual backup system. When one of the pumps fails, the other pump can continue to work, ensuring the continuous supply of fuel and the normal operation of the unit equipment. There is no need to stop the unit for maintenance, avoiding the unit shutdown caused by pump failure.

[0014] 2. In the utility model, a filter is installed on the top of the box body, the end of the second fuel pump pipe is fixedly connected to the output end of the filter, the input end of the filter is connected to the oil inlet pipe, and the oil inlet pipe is connected to the external fuel tank. The main function of the filter is to filter impurities and pollutants in the fuel, ensure the cleanliness of the fuel supplied to the fuel pump, help protect the fuel pump from impurities and wear, extend its service life, and ensure the normal operation of the unit equipment.

[0015] 3. Through the touch screen, the user can easily monitor the status of the pumping device, adjust working parameters, perform fault diagnosis and other operations. The controller is responsible for receiving instructions from the industrial touch screen and controlling the working status of fuel pump No. 1, fuel pump No. 2, the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve according to these instructions.

[0016] 4. The hydraulic sensor is used to monitor the changes in fuel pressure in the first fuel pumping pipe in real time. By monitoring the pressure, the hydraulic sensor can provide important information about the fuel flow status, and then judge whether the No. 1 fuel pump is working normally through the changes in fuel pressure in the first fuel pumping pipe.

[0017] 5. There are heat dissipation vents with shutter structures on both sides of the box. The heat dissipation vents are used for heat exchange inside the box, promoting air flow and helping to dissipate the heat generated inside the box. While ensuring heat dissipation, they can prevent external dust and moisture from entering the box to a certain extent, protecting internal components.

[0018] A cooling fan is installed on the inside of the heat dissipation port. The cooling fan can actively discharge the heat inside the box, help to reduce the temperature inside the box, keep the fuel pump and other electronic components within a suitable operating temperature range, and ensure the normal operation of each component inside the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 This is a schematic structural diagram of the utility model from another angle.

[0021] Figure 3 It is a schematic diagram of the internal structure of the box in the utility model.

[0022] Figure 4 It is a front view of the box body in the utility model.

[0023] In the figure: 1. Box body; 2. Heat dissipation port; 3. Movable box door; 4. Industrial touch screen; 5. Filter; 6. First fuel pumping pipe; 7. Oil inlet pipe; 8. Second fuel pumping pipe; 9. No. 1 fuel pump; 10. No. 2 fuel pump; 11. Cooling fan; 12. Hydraulic sensor; 13. First solenoid valve; 14. Second solenoid valve; 15. Third fuel pumping pipe; 16. Fourth fuel pumping pipe; 17. Third solenoid valve; 18. Fourth solenoid valve. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example:

[0026] like Figures 1 to 4As shown, an automatic fuel pumping device for a unit includes a box body 1 and a movable box door 3, the movable box door 3 is hinged on the front side of the box body 1, a No. 1 fuel pump 9 is installed on the upper side of the box body 1, a No. 2 fuel pump 10 is arranged on the lower side of the No. 1 fuel pump 9, the input end of the No. 1 fuel pump 9 is connected to the second fuel pumping pipe 8, the input end of the No. 2 fuel pump 10 is connected to the second fuel pumping pipe 8 through a fourth fuel pumping pipe 16, the second fuel pumping pipe 8 is equipped with a fourth solenoid valve 18, and the fourth solenoid valve 18 is located on the left side of the connection between the fourth fuel pumping pipe 16 and the second fuel pumping pipe 8, the output end of the No. 1 fuel pump 9 is connected to the first fuel pumping pipe 6, and the first fuel pumping pipe 8 is connected to the second fuel pumping pipe 8. The end of the tube 6 extends from the top of the box body 1 and is connected to the external unit equipment. The output end of the No. 2 fuel pump 10 is connected to the first fuel pumping pipe 6 through the third fuel pumping pipe 15. The first fuel pumping pipe 6 is equipped with a first solenoid valve 13, and the first solenoid valve 13 is located on the right side of the connection between the third fuel pumping pipe 15 and the first fuel pumping pipe 6. The third fuel pumping pipe 15 is equipped with a second solenoid valve 14, and the fourth fuel pumping pipe 16 is equipped with a third solenoid valve 17. This design solves the problem that the existing fuel pump usually adopts a single-group operation mode to pump fuel. When the fuel pump fails, it needs to be shut down for maintenance, which affects the normal operation of the unit equipment.

[0027] A filter 5 is installed on the top of the box 1, and the end of the second fuel pumping pipe 8 is fixedly connected to the output end of the filter 5. The input end of the filter 5 is connected to the oil inlet pipe 7, and the oil inlet pipe 7 is connected to the external fuel tank. The main function of the filter 5 is to filter impurities and pollutants in the fuel, ensure the cleanliness of the fuel supplied to the fuel pump, help protect the fuel pump from impurities and wear, extend its service life, and ensure the normal operation of the unit equipment.

[0028] The front side of the movable box door 3 is equipped with an industrial touch screen 4, and the inner side of the movable box door 3 is equipped with a controller. The industrial touch screen 4 is electrically connected to the controller through a wire, and the No. 1 fuel pump 9, the No. 2 fuel pump 10, the first solenoid valve 13, the second solenoid valve 14, the third solenoid valve 17 and the fourth solenoid valve 18 are all electrically connected to the controller through a wire. Through the touch screen, the user can conveniently monitor the status of the pumping device, adjust the working parameters, perform fault diagnosis and other operations. The controller is responsible for receiving instructions from the industrial touch screen 4, and controlling the working status of the No. 1 fuel pump 9, the No. 2 fuel pump 10, the first solenoid valve 13, the second solenoid valve 14, the third solenoid valve 17 and the fourth solenoid valve 18 according to these instructions.

[0029] The first fuel pumping pipe 6 is equipped with a hydraulic sensor 12, and the hydraulic sensor 12 is located on the left side of the connection between the third fuel pumping pipe 15 and the first fuel pumping pipe 6. The hydraulic sensor 12 is electrically connected to the controller through a wire. The hydraulic sensor 12 is used to monitor the fuel pressure change in the first fuel pumping pipe 6 in real time. By monitoring the pressure, the hydraulic sensor 12 can provide important information about the fuel flow state, and then judge whether the No. 1 fuel pump 9 is working normally through the fuel pressure change in the first fuel pumping pipe 6.

[0030] Both sides of the box body 1 are provided with heat dissipation vents 2 with a louver structure. The heat dissipation vents 2 are used for heat exchange inside the box body 1 to promote air flow and help dissipate the heat generated inside the box body 1. While ensuring heat dissipation, they can prevent external dust and moisture from entering the box body 1 to a certain extent, thereby protecting internal components.

[0031] A cooling fan 11 is installed inside the heat dissipation port 2. The cooling fan 11 can actively discharge the heat inside the box 1, which helps to reduce the temperature inside the box 1, keep the fuel pump and other electronic components within a suitable operating temperature range, and ensure the normal operation of each component inside the box 1.

[0032] The working principle of this type of automatic fuel pumping device for a unit is as follows: when pumping fuel, start the No. 1 fuel pump 9, close the No. 2 fuel pump 10, open the first solenoid valve 13 and the fourth solenoid valve 18, and close the second solenoid valve 14 and the third solenoid valve 17. Under the action of the No. 1 fuel pump 9, the fuel in the external fuel tank enters the filter 5 through the oil inlet pipe 7. The filter 5 filters out impurities and pollutants in the fuel to ensure that the fuel supplied to the fuel pump is clean. The filtered fuel is supplied to the No. 1 fuel pump 9 through the second fuel pumping pipe 8. The No. 1 fuel pump 9 pumps the fuel to the external unit equipment through the first fuel pumping pipe 6 for use by the external unit equipment. The fuel pressure changes in the first fuel pumping pipe 6 are monitored in real time by the hydraulic sensor 12. When the fuel pressure changes in the first fuel pumping pipe 6 are abnormal, the controller system determines that the No. 1 fuel pump 9 is faulty, and then adjusts the fuel pumping path accordingly;

[0033] The controller turns off the No. 1 fuel pump 9, and closes the first solenoid valve 13 and the fourth solenoid valve 18, while starting the No. 2 fuel pump 10 and opening the second solenoid valve 14 and the third solenoid valve 17. At this time, the external fuel flows into the fourth fuel pumping pipe 16 through the second fuel pumping pipe 8, and then enters the No. 2 fuel pump 10 through the fourth fuel pumping pipe 16. The No. 2 fuel pump 10 pumps the fuel to the external equipment through the third fuel pumping pipe 15, maintaining the normal operation of the external unit equipment without stopping for maintenance.

[0034] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. An automatic fuel pumping device for a unit, comprising a box body (1) and a movable box door (3), characterized in that: A movable box door (3) is hingedly connected to the front side of the box body (1); a No. 1 fuel pump (9) is installed on the upper side of the box body (1); a No. 2 fuel pump (10) is arranged on the lower side of the No. 1 fuel pump (9); an input end of the No. 1 fuel pump (9) is connected to a second fuel pumping pipe (8); an input end of the No. 2 fuel pump (10) is connected to the second fuel pumping pipe (8) via a fourth fuel pumping pipe (16); a fourth solenoid valve (18) is installed on the second fuel pumping pipe (8); and the fourth solenoid valve (18) is located on the left side of the connection between the fourth fuel pumping pipe (16) and the second fuel pumping pipe (8); The output end is connected to a first fuel pumping pipe (6), and the end of the first fuel pumping pipe (6) extends from the top of the box body (1) to be connected to an external unit device. The output end of the second fuel pump (10) is connected to the first fuel pumping pipe (6) through a third fuel pumping pipe (15). The first fuel pumping pipe (6) is equipped with a first solenoid valve (13), and the first solenoid valve (13) is located on the right side of the connection between the third fuel pumping pipe (15) and the first fuel pumping pipe (6). The third fuel pumping pipe (15) is equipped with a second solenoid valve (14), and the fourth fuel pumping pipe (16) is equipped with a third solenoid valve (17).

2. The automatic fuel pumping device for a unit according to claim 1 is characterized in that: A filter (5) is installed on the top of the box body (1); the end of the second fuel pumping pipe (8) is fixedly connected to the output end of the filter (5); the input end of the filter (5) is connected to an oil inlet pipe (7); and the oil inlet pipe (7) is connected to an external fuel tank.

3. The automatic fuel pumping device for a unit according to claim 1 is characterized in that: The front side of the movable box door (3) is equipped with an industrial touch screen (4), and the inner side of the movable box door (3) is equipped with a controller. The industrial touch screen (4) is electrically connected to the controller via a wire, and the No. 1 fuel pump (9), the No. 2 fuel pump (10), the first solenoid valve (13), the second solenoid valve (14), the third solenoid valve (17), and the fourth solenoid valve (18) are all electrically connected to the controller via a wire.

4. The automatic fuel pumping device for a unit according to claim 3 is characterized in that: The first fuel pumping pipe (6) is equipped with a hydraulic sensor (12), and the hydraulic sensor (12) is located on the left side of the connection between the third fuel pumping pipe (15) and the first fuel pumping pipe (6), and the hydraulic sensor (12) is electrically connected to the controller via a wire.

5. The automatic fuel pumping device for a unit according to claim 4 is characterized in that: The left and right sides of the box body (1) are both provided with heat dissipation openings (2) with a shutter structure.

6. The automatic fuel pumping device for a unit according to claim 5, characterized in that: A cooling fan (11) is installed inside the heat dissipation opening (2).

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