Splash-proof fuel tank drain

Abstract

This invention discloses a splash-proof fuel tank residual discharge device. The device includes a tank body with an inlet pipe inserted at the top and an outlet pipe at the bottom. A baffle is installed between the inlet and outlet pipes, with a gap between the outer circumferential surface of the baffle and the inner circumferential surface of the tank body. Several first supports are provided on the inner circumferential surface of the tank body for fixing the baffle. A buffer cylinder is installed between the baffle and the inlet pipe, with the inner diameter of the buffer cylinder being larger than the inner diameter of the inlet pipe and the outer diameter of the buffer cylinder being smaller than the outer diameter of the baffle. Several second supports are provided on the outer circumferential surface of the buffer cylinder, with the first and second supports corresponding to each other to fix the buffer cylinder above the baffle. An energy-dissipating mechanism is installed inside the buffer cylinder to slow down the flow rate of residual fuel. This invention solves the problem of existing technologies where fuel splashes around the drain during discharge, causing environmental pollution and posing safety hazards.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a splash-proof fuel tank residual discharge device. Background Technology

[0002] Currently, residual oil in ship fuel tanks is discharged through a straight drain pipe that extends directly to a floor drain. During the discharge process, the residual oil carries pressure and impacts the floor drain, causing it to splash around the drain, resulting in environmental pollution and safety hazards. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a splash-proof fuel tank residue discharge device that protects the environment from pollution and eliminates safety hazards.

[0004] To achieve the above objectives, the technical solution adopted by the anti-splash fuel tank residual discharge device of the present invention is as follows:

[0005] A splash-proof fuel tank residual discharge device includes a tank body, an inlet pipe inserted into the top of the tank body, an outlet pipe provided at the bottom of the tank body, a baffle between the inlet pipe and the outlet pipe, a gap between the outer circumferential surface of the baffle and the inner circumferential surface of the tank body, a plurality of first legs provided on the inner circumferential surface of the tank body for fixing the baffle, a buffer cylinder provided between the baffle and the inlet pipe, the inner diameter of the buffer cylinder being larger than the inner diameter of the inlet pipe, the outer diameter of the buffer cylinder being smaller than the outer diameter of the baffle, a plurality of second legs provided on the outer circumferential surface of the buffer cylinder, the first and second legs corresponding one-to-one to fix the buffer cylinder above the baffle, and an energy release mechanism provided inside the buffer cylinder for slowing down the flow rate of residual fuel.

[0006] Preferably, the energy release mechanism includes an energy release plate, the outer diameter of which is smaller than the inner diameter of the buffer cylinder and larger than the inner diameter of the oil inlet pipe. The energy release plate is movably connected to the buffer cylinder by a number of bolt assemblies, and a spring sleeved on the outside of the bolt is provided between the bottom surface of the energy release plate and the bottom wall of the buffer cylinder.

[0007] Preferably, the energy-dissipating plate is a circular plate, and the top surface of the circular plate is an arc surface that protrudes upward in the middle.

[0008] Preferably, the area of ​​the energy venting plate facing the oil inlet pipe has honeycomb holes.

[0009] Preferably, the bottom wall of the buffer cylinder has a through hole, which falls within the projection of the energy dissipation plate.

[0010] Preferably, the tank body includes a cover plate that is inserted into the oil inlet pipe, and an annular body is detachably connected to the bottom of the cover plate. The first support leg is disposed at the lower part of the annular body, and a conical plate protruding downward is welded to the bottom of the annular body. The oil outlet pipe is disposed at the lowest point of the conical plate.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. The oil inlet pipe guides the rapidly flowing residual oil from the drain pipe into the tank. After the energy is dissipated by the energy release mechanism, the flow rate is significantly reduced and becomes gentler in the buffer cylinder. Once the gentle residual oil fills the buffer chamber, it overflows onto the baffle plate, which acts as a secondary buffer. The gentle residual oil then flows through the gap between the baffle plate and the tank to the bottom of the tank and is discharged to the floor drain through the oil outlet pipe. This prevents splashing, thus protecting the environment from pollution and eliminating safety hazards.

[0013] 2. When residual oil impacts the energy venting plate rapidly, the spring converts part of the mechanical energy of the residual oil into elastic potential energy, thereby slowing down the flow rate of the residual oil and protecting the energy venting plate, extending its service life.

[0014] 3. The top surface of the energy venting plate is an arc surface that protrudes upward in the middle, which can improve the strength of the energy venting plate.

[0015] 4. Honeycomb holes are provided in the area of ​​the energy venting plate directly opposite the oil inlet pipe, which can further improve the strength of the energy venting plate and reduce noise. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the anti-splash fuel tank residual discharge device of the present invention;

[0017] Figure 2 This is a sectional view of the tank.

[0018] Figure 3 This is a cross-sectional view of the energy release mechanism;

[0019] Figure 4 This is a schematic diagram of the buffer cylinder structure;

[0020] Figure 5 This is a schematic diagram of the energy dissipation plate.

[0021] Among them, 1 is the tank body, 11 is the cover plate, 12 is the annular body, 121 is the first support, 13 is the conical plate, 2 is the oil inlet pipe, 3 is the oil outlet pipe, 4 is the baffle, 5 is the buffer cylinder, 51 is the second support, 52 is the through hole, 6 is the energy release mechanism, 61 is the energy release plate, 611 is the arc surface, 612 is the honeycomb hole, 62 is the bolt assembly, and 63 is the spring. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. After reading this invention, any modifications of the invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0023] like Figure 1-5As shown, a splash-proof fuel tank residual discharge device includes a tank body 1, which includes a cover plate 11. An oil inlet pipe 2 is inserted into the center of the cover plate. An annular body 12 is detachably connected to the bottom edge of the cover plate. A conical plate 13 protruding downwards is welded to the bottom of the annular body. An oil outlet pipe 3 is welded to the lowest point of the conical plate. A baffle plate 4 is arranged between the oil inlet pipe and the oil outlet pipe. A gap is left between the outer circumferential surface of the baffle plate and the inner circumferential surface of the tank body. Six first legs 121 evenly distributed in a circle around the axis of the annular body are welded to the lower side of the inner circumferential surface of the annular body. The first legs are used to fix the baffle plate. A buffer cylinder 5 is arranged between the baffle plate and the oil inlet pipe. The inner diameter of the buffer cylinder is larger than the inner diameter of the oil inlet pipe, and the outer diameter of the buffer cylinder is smaller than the outer diameter of the baffle plate. Six second legs 51 are welded to the outer circumferential surface of the buffer cylinder. The first and second legs correspond one-to-one to detachably fix the buffer cylinder above the baffle plate. An energy release mechanism 6 is installed inside the buffer cylinder. The energy release mechanism, designed to slow down the flow rate of residual oil, includes an energy release plate 61. The energy release plate is a circular plate with an outer diameter smaller than the inner diameter of the buffer cylinder and larger than the inner diameter of the oil inlet pipe. The top surface of the circular plate is an arc surface 611 with an upward protrusion in the middle, which can improve the strength of the energy release plate. Honeycomb holes 612 are opened in the area of ​​the circular plate facing the oil inlet pipe, which can further improve the strength of the energy release plate and reduce noise. The circular plate is movably connected to the buffer cylinder by three bolt assemblies 62. A spring 63 is arranged between the bottom surface of the circular plate and the bottom wall of the buffer cylinder, sleeved on the outside of the bolt. The spring converts part of the mechanical energy of the rapidly flowing residual oil into elastic potential energy, thereby slowing down the flow rate of residual oil and protecting the energy release plate, extending its service life. A through hole 52 is opened in the bottom wall of the buffer cylinder, which falls within the projection of the energy release plate. The through hole reduces the discharge pressure of the buffer cylinder, increases the discharge volume of residual oil, and improves the discharge efficiency.

[0024] The specific working process and principle of this invention: After the oil inlet pipe is connected to the drain pipe, the rapidly flowing residual oil is introduced into the tank. The energy release plate, which is impacted, compresses the spring, which can consume part of the mechanical energy of the rapidly flowing residual oil, so that the rapidly flowing residual oil can quickly become gentle in the buffer cylinder. The residual oil in the buffer cylinder first flows to the baffle through the through hole. When the through hole cannot drain in time, some residual oil overflows from the top of the buffer cylinder and falls onto the baffle. At this time, the baffle can play a secondary buffering role. The gentle residual oil flows along the conical plate and is discharged to the floor drain through the liquid outlet without splashing, thereby protecting the environment from pollution and eliminating safety hazards.

Claims

1. A splash-proof fuel tank residual discharge device, characterized in that: The system includes a tank body with an oil inlet pipe inserted at the top and an oil outlet pipe at the bottom. A baffle plate is installed between the inlet and outlet pipes, with a gap between the outer circumference of the baffle plate and the inner circumference of the tank body. Several first supports are provided on the inner circumference of the tank body to secure the baffle plate. A buffer cylinder is installed between the baffle plate and the oil inlet pipe, with the inner diameter of the buffer cylinder being larger than the inner diameter of the oil inlet pipe and the outer diameter of the buffer cylinder being smaller than the outer diameter of the baffle plate. Several second supports are provided on the outer circumference of the buffer cylinder, with the first and second supports corresponding to each other to secure the buffer cylinder above the baffle plate. An energy-relieving mechanism is installed inside the buffer cylinder to slow down the flow rate of residual oil. The energy-relieving mechanism includes an energy-relieving plate, which is a circular plate. The top surface of the circular plate is an arc surface that protrudes upward in the middle. The outer diameter of the energy venting plate is smaller than the inner diameter of the buffer cylinder and larger than the inner diameter of the oil inlet pipe. The energy venting plate is movably connected to the buffer cylinder by several bolt assemblies. The area of ​​the energy venting plate facing the oil inlet pipe is provided with honeycomb holes. A spring sleeved on the outside of the bolt is provided between the bottom surface of the energy venting plate and the bottom wall of the buffer cylinder. The bottom wall of the buffer cylinder is provided with a through hole that falls within the projection of the energy venting plate. The tank body includes a cover plate that is inserted into the oil inlet pipe. An annular body is detachably connected to the bottom of the cover plate. The first support leg is provided at the lower part of the annular body. A conical plate protruding downward is welded to the bottom of the annular body. The oil outlet pipe is provided at the lowest point of the conical plate.

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