Maintenance-free oil-resistant cargo hold ventilation device of oil tanker

Abstract

The utility model relates to the technical field of ship construction, and provides an oil tanker maintenance-free oil-resistant cargo hold ventilation device which comprises an oil-resistant barrel and an oil-resistant baffle, two passing pipes are arranged at the bottom end of the oil-resistant barrel, flanges are arranged at the bottom ends of the passing pipes, an installation disc is fixedly connected to the top end of the oil-resistant barrel, and a top cover is connected to the top end of the installation disc through bolts. An air hole is formed in the top cover, a vent pipe matched with the air hole is fixedly connected to the top end of the top cover, a J-shaped pipeline is fixedly connected to the top end of the vent pipe, one end of the J-shaped pipeline faces the ground, the oil blocking baffle is fixedly connected to the inner side wall of the oil blocking barrel, and the oil blocking baffle is matched with the air hole, so that rainwater or seawater is prevented from flowing into the oil tank; the oil is polluted, and the maintenance cost of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ship construction, and in particular to a maintenance-free oil-blocking cargo tank ventilating device for an oil tanker. Background Art

[0002] The main function of oil tankers is to carry and transport oil products, and they are equipped with a large number of oil tanks. The oil tanks need to be kept in a stable pressure state. Due to loading and the free movement of the oil liquid surface in the tank, the pressure in the tank may change. In order to keep the pressure in the tank within a certain reasonable range, each cargo tank needs to be equipped with a breather valve;

[0003] After searching, China disclosed on July 15, 2022 a maintenance-free oil-blocking cargo tank ventilation device for oil tankers with patent publication number CN216969935U, which is roughly described as including a first connecting port and a second connecting port opened on the main deck and connected to the oil tank, the top of the first connecting port is connected to the first casing, and the top of the second connecting port is connected to the second casing; the tops of the first casing and the second casing are jointly connected to an oil-blocking barrel, and the middle of the inner wall of the oil-blocking barrel is horizontally connected to an oil-blocking baffle directly above the first casing; the oil-blocking barrel is provided with a gas outlet directly above the oil-blocking baffle, and the gas outlet is connected to the ventilation valve through a gas output pipe.

[0004] Although the above-mentioned prior art solution effectively prevents the oil spill from spraying out through the breather valve, reducing the risk of polluting the oil tanker deck or causing a combustion and explosion accident, the device is provided with a breather valve at the top of the equipment for ventilation. However, even a waterproof breather valve cannot be completely waterproof. Therefore, when it rains or waves hit the deck with impact force, it is possible that rainwater or seawater flows into the oil tank through the breather valve, causing the oil to be contaminated, and the structure of the equipment is relatively cumbersome, increasing the maintenance cost of the equipment. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a maintenance-free oil-blocking cargo tank ventilation device for oil tankers to solve the problem raised in the background technology that when it rains or waves hit the deck with impact force, rainwater or seawater may flow into the oil tank through the ventilation valve, causing the oil to be contaminated, and the structure of the equipment is relatively complicated, thereby increasing the maintenance cost of the equipment.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a maintenance-free oil-blocking cargo tank ventilation device for an oil tanker, comprising an oil-blocking barrel and an oil-blocking baffle, the bottom end of the oil-blocking barrel is provided with two through tubes, the bottom ends of the through tubes are provided with flanges, the top end of the oil-blocking barrel is fixedly connected with a mounting plate, the top end of the mounting plate is connected with a top cover by bolts, an air hole is provided on the top cover, the top end of the top cover is fixedly connected with a ventilation pipe matching with the air hole, the top end of the ventilation pipe is fixedly connected with a J-shaped pipe, one end of the J-shaped pipe faces the ground, the oil-blocking baffle is fixedly connected to the inner side wall of the oil-blocking barrel, the oil-blocking baffle matches with the air hole, the top end of the oil-blocking baffle is fixedly connected with a guide, and the inner side wall of the J-shaped pipe is fixedly connected with a dust net.

[0009] The above technical scheme is adopted, and the equipment is installed above the oil tank by matching the pipe and the flange, so that when the oil spills out from the air vent due to shaking, the oil will enter the oil blocking barrel through the through pipe, and the oil blocking baffle is used to block the oil splashing out from the through pipe to prevent the oil from directly splashing into the vent pipe, thereby preventing the oil from flowing onto the deck. The vent pipe is matched with the J-shaped pipe to flow air into the oil blocking barrel and the oil tank, thereby maintaining the balance of air pressure in the oil tank. Since rainwater and seawater from waves fall from above or from the side, the J-shaped pipe with one end facing the ground can prevent rainwater and seawater from flowing into the oil blocking barrel and the oil tank, thereby preventing the oil from being contaminated and reducing the maintenance cost of the equipment. The guide is used to facilitate the oil flowing onto the oil blocking baffle to flow down along the guide, thereby avoiding the accumulation of oil on the oil blocking baffle. The dustproof net is used to prevent external dust from flowing into the oil blocking barrel and even the oil tank via the J-shaped pipe and the vent pipe, thereby preventing dust from contaminating the oil.

[0010] Optionally, a sealing gasket matching the mounting plate is fixedly connected to the bottom end of the top cover, and the bottom end of the sealing gasket is tightly against the mounting plate.

[0011] By adopting the above technical solution, the sealing gasket is used to improve the sealing between the top cover and the oil blocking barrel, so as to prevent the oil from overflowing onto the deck, thereby achieving the purpose of improving the stability of the equipment.

[0012] Optionally, a plurality of evenly distributed reinforcing ribs are fixedly connected between the ventilation pipe and the top cover.

[0013] By adopting the above technical solution, the reinforcing ribs are used to improve the connection strength between the ventilation pipe and the top cover, reducing the probability of the ventilation pipe being separated from the top cover due to bumps, thereby achieving the purpose of improving the stability of the equipment.

[0014] Optionally, a fixed block is fixedly connected to the outer wall of the oil-blocking barrel, a foot pedal is rotatably connected to the fixed block, and a blocking block is fixedly connected to one end of the foot pedal.

[0015] By adopting the above technical solution, the blocking block is used to limit the foot pedal, so that the foot pedal is easy for people to step on, so that people can step on the foot pedal to climb onto the top cover, which makes it easy to install and disassemble the equipment.

[0016] Optionally, a first sliding groove is provided at the top of the fixed block, a second sliding groove matching with the first sliding groove is provided at one end of the foot pedal, the second sliding groove has an internal control rod, the top of the control rod is fixedly connected with a connecting plate, the bottom end of the connecting plate is fixedly connected with a clamping rod matching with the first sliding groove, and a limit block is provided at the bottom end of the control rod.

[0017] By adopting the above technical solution, the foot pedal is rotated to fit with the fixed block, and the control rod is rotated to drive the connecting plate and the clamping rod, so that the clamping rod moves to the top of the first sliding groove, and the clamping rod is inserted into the first sliding groove to position the foot pedal, thereby achieving the purpose of storing the foot pedal and reducing space occupancy. The limit block is used to prevent the control rod from disengaging from the second sliding groove.

[0018] (III) Beneficial effects

[0019] In summary, the present invention includes at least one of the following beneficial technical effects:

[0020] 1. The maintenance-free oil-blocking cargo hold ventilation device of the oil tanker is matched with a pipe and a flange, and is used to install the equipment above the oil tank, so that when the oil spills out from the vent due to shaking, the oil will enter the oil-blocking barrel through the through pipe, and the oil-blocking baffle is used to block the oil splashed out from the through pipe to prevent the oil from splashing directly into the vent pipe, thereby preventing the oil from flowing onto the deck. The vent pipe is matched with the J-type pipe to flow air into the oil-blocking barrel and the oil tank, thereby maintaining the balance of air pressure in the oil tank. Since rainwater and seawater from waves fall from above or above the side, the J-type pipe with one end facing the ground can prevent rainwater and seawater from flowing into the oil-blocking barrel and the oil tank, thereby avoiding contamination of the oil and reducing the maintenance cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first side structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the first cross-sectional structure of the utility model;

[0023] Figure 3 For this utility model Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the second cross-sectional structure of the utility model.

[0025] In the figure: 1. oil-blocking barrel; 2. oil-blocking baffle; 3. through pipe; 4. flange; 5. mounting plate; 6. top cover; 7. vent pipe; 8. J-shaped pipe; 9. guide; 10. dust net; 11. sealing gasket; 12. reinforcing rib; 13. fixing block; 14. foot pedal; 15. blocking block; 16. first sliding groove; 17. second sliding groove; 18. control lever; 19. connecting plate; 20. clamping rod; 21. limit block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in 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 in 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.

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] Reference Figure 1-Figure 4 The top of the oil blocking barrel 1 is fixedly connected with a mounting plate 5, and the top of the mounting plate 5 is connected with a top cover 6 by bolts. The top cover 6 is provided with an air hole, and the top of the top cover 6 is fixedly connected with a ventilation pipe 7 matching the air hole, and the top of the ventilation pipe 7 is fixedly connected with a J-shaped pipe 8, one end of the J-shaped pipe 8 faces the ground, and the oil blocking baffle 2 is fixedly connected to the inner wall of the oil blocking barrel 1, and the oil blocking baffle 2 matches the air hole, and the through pipe 3 and the flange 4 are matched to be installed above the oil tank, so that when the oil spills out of the ventilation port due to shaking, the oil will enter the oil blocking barrel 1 through the through pipe 3, and the oil blocking baffle 2 is used to block the oil splashed from the through pipe 3 to avoid oil liquid The J-shaped pipe 8 is used to prevent the oil from flowing into the oil-blocking barrel 1 and the oil tank, so as to keep the air pressure in the oil tank balanced. The J-shaped pipe 8 with one end facing the ground can prevent the rain and sea water from flowing into the oil-blocking barrel 1 and the oil tank, so as to avoid the oil being contaminated and reduce the maintenance cost of the equipment. The top of the oil-blocking baffle 2 is fixedly connected with a guide member 9, which is used to facilitate the oil flowing onto the oil-blocking baffle 2 to flow down along the guide member 9 to avoid the accumulation of oil on the oil-blocking baffle 2. The inner wall of the J-shaped pipe 8 is fixedly connected with a dustproof net 10, which is used to prevent external dust from flowing into the oil-blocking barrel 1 and even the oil tank via the J-shaped pipe 8 and the ventilation pipe 7, so as to avoid the pollution of the oil by dust.

[0029] Reference Figure 1 and Figure 2 The bottom end of the top cover 6 is fixedly connected with a sealing gasket 11 which matches the mounting plate 5. The bottom end of the sealing gasket 11 is close to the mounting plate 5. The sealing gasket 11 is used to improve the sealing between the top cover 6 and the oil blocking barrel 1, so as to prevent the oil from overflowing onto the deck, so as to achieve the purpose of improving the stability of the equipment.

[0030] Reference Figure 1 and Figure 2 A plurality of evenly distributed reinforcing ribs 12 are fixedly connected between the vent pipe 7 and the top cover 6. The reinforcing ribs 12 are used to improve the connection strength between the vent pipe 7 and the top cover 6 and reduce the probability of the vent pipe 7 being separated from the top cover 6 due to collision, thereby achieving the purpose of improving the stability of the equipment.

[0031] Reference Figure 1 and Figure 2 A fixing block 13 is fixedly connected to the outer wall of the oil-blocking barrel 1, and a foot pedal 14 is rotatably connected to the fixing block 13. A blocking block 15 is fixedly connected to one end of the foot pedal 14. The blocking block 15 is used to limit the foot pedal 14 so that the foot pedal 14 is easy for people to step on, so that people can step on the foot pedal 14 to climb onto the top cover 6, which is convenient for installing and disassembling the equipment.

[0032] Reference Figure 2 and Figure 3 A first sliding groove 16 is provided at the top of the fixed block 13, a second sliding groove 17 matching the first sliding groove 16 is provided at one end of the foot pedal 14, and a control rod 18 is provided inside the second sliding groove 17. A connecting plate 19 is fixedly connected to the top of the control rod 18, and a clamping rod 20 matching the first sliding groove 16 is fixedly connected to the bottom end of the connecting plate 19. A limit block 21 is provided at the bottom end of the control rod 18. The foot pedal 14 is rotated to fit with the fixed block 13, and the control rod 18 is rotated to drive the connecting plate 19 and the clamping rod 20 so that the clamping rod 20 moves to the top of the first sliding groove 16, and the clamping rod 20 is inserted into the first sliding groove 16, so as to position the foot pedal 14, so as to achieve the purpose of storing the foot pedal 14 and reducing space occupancy. The limit block 21 is used to prevent the control rod 18 from disengaging from the second sliding groove 17.

[0033] In summary, the working principle and working process of the maintenance-free oil-blocking cargo tank ventilation device of the oil tanker are as follows: when in use, first, the pipe 3 and the flange 4 are matched to install the device above the oil tank, so that when the oil spills out from the ventilation port due to shaking, the oil will enter the oil-blocking barrel 1 through the pipe 3, and the oil-blocking baffle 2 is used to block the oil splashed from the pipe 3 to prevent the oil from directly splashing into the ventilation pipe 7, thereby preventing the oil from flowing onto the deck, and the ventilation pipe 7 is matched with the J-shaped pipe 8 to supply oil to the oil-blocking barrel 1 and the oil tank. Flowing air is used to maintain the balance of air pressure in the oil tank. Since rainwater and seawater from waves fall from above or from the side, the J-shaped pipe 8 with one end facing the ground can prevent rainwater and seawater from flowing into the oil blocking barrel 1 and the oil tank, thereby avoiding contamination of the oil product and reducing the maintenance cost of the equipment. The guide 9 is used to facilitate the oil flowing onto the oil blocking baffle 2 to flow down along the guide 9 to avoid oil accumulation on the oil blocking baffle 2. The dustproof net 10 is used to prevent external dust from flowing into the oil blocking barrel 1 through the J-shaped pipe 8 and the ventilation pipe 7 The sealing gasket 11 is used to improve the sealing between the top cover 6 and the oil-blocking barrel 1, so as to prevent the oil from overflowing onto the deck, so as to achieve the purpose of improving the stability of the equipment. The reinforcing rib 12 is used to improve the connection strength between the vent pipe 7 and the top cover 6, and reduce the probability of the vent pipe 7 being separated from the top cover 6 due to collision, so as to achieve the purpose of improving the stability of the equipment. The blocking block 15 is used to limit the foot pedal 14, so that the foot pedal 14 is convenient for personnel to step on, so that personnel can step on the foot pedal 14 to climb onto the top cover 6, so as to facilitate the installation and disassembly of the equipment. The foot pedal 14 is rotated to fit with the fixing block 13, and the control rod 18 is rotated to drive the connecting plate 19 and the clamping rod 20, so that the clamping rod 20 moves to the top of the first sliding groove 16, and the clamping rod 20 is inserted into the first sliding groove 16, so as to position the foot pedal 14, so as to achieve the purpose of storing the foot pedal 14 and reducing the space occupied. The limiting block 21 is used to prevent the control rod 18 from being separated from the second sliding groove 17.

[0034] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A maintenance-free oil-blocking cargo tank venting device for an oil tanker, comprising an oil-blocking barrel (1), characterized in that: The invention comprises an oil-blocking baffle (2), wherein two through-tubes (3) are provided at the bottom end of the oil-blocking barrel (1), and a flange (4) is provided at the bottom end of the through-tubes (3). The top end of the oil-blocking barrel (1) is fixedly connected to a mounting plate (5), and the top end of the mounting plate (5) is connected to a top cover (6) by bolts, and an air hole is provided on the top cover (6). The top end of the top cover (6) is fixedly connected to a vent pipe (7) matched with the air hole, and the top end of the vent pipe (7) is fixedly connected to a J-shaped pipe (8), and one end of the J-shaped pipe (8) faces the ground. The oil-blocking baffle (2) is fixedly connected to the inner side wall of the oil-blocking barrel (1), and the oil-blocking baffle (2) matches with the air hole.

2. A maintenance-free oil-blocking cargo tank venting device for oil tankers according to claim 1, characterized in that: A guide member (9) is fixedly connected to the top end of the oil blocking baffle (2).

3. The maintenance-free oil-blocking cargo tank venting device for oil tankers according to claim 1 is characterized by: A dustproof net (10) is fixedly connected to the inner side wall of the J-shaped pipe (8).

4. The maintenance-free oil-blocking cargo tank venting device for oil tankers according to claim 1 is characterized by: The bottom end of the top cover (6) is fixedly connected with a sealing gasket (11) that matches the mounting plate (5), and the bottom end of the sealing gasket (11) is tightly attached to the mounting plate (5).

5. The maintenance-free oil-blocking cargo tank venting device for oil tankers according to claim 1, characterized in that: A plurality of evenly distributed reinforcing ribs (12) are fixedly connected between the ventilation pipe (7) and the top cover (6).

6. The maintenance-free oil-blocking cargo tank venting device for oil tankers according to claim 1, characterized in that: A fixing block (13) is fixedly connected to the outer wall of the oil-blocking barrel (1), a foot pedal (14) is rotatably connected to the fixing block (13), and a blocking block (15) is fixedly connected to one end of the foot pedal (14).

7. A maintenance-free oil-blocking cargo tank venting device for oil tankers according to claim 6, characterized in that: The top of the fixed block (13) is provided with a first sliding groove (16), one end of the foot pedal (14) is provided with a second sliding groove (17) matched with the first sliding groove (16), an internal control rod (18) of the second sliding groove (17), the top of the control rod (18) is fixedly connected with a connecting plate (19), the bottom end of the connecting plate (19) is fixedly connected with a clamping rod (20) matched with the first sliding groove (16), and the bottom end of the control rod (18) is provided with a limit block (21).

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