A high-efficiency anti-blocking and rapid breather valve device for oil tankers

Abstract

This utility model relates to the field of marine equipment technology, and provides a high-efficiency anti-clogging and rapid ventilation valve device suitable for oil tankers. It includes: a cylindrical shell made of corrosion-resistant stainless steel, with an exhaust port at the top and an air inlet at the bottom; an anti-clogging filtration system and a rapid ventilation mechanism inside the shell; the anti-clogging filtration system including a cyclone separator, a honeycomb filter, and a self-cleaning filter element, arranged sequentially from the air inlet to the exhaust port; and a maintenance hatch on the side wall of the shell. This utility model improves the impurity retention rate and reduces the clogging rate through three-stage filtration; it also reduces the frequency of manual maintenance through piezoelectric vibrator vibration cleaning; and it improves ventilation efficiency through the dual-valve linkage design of the main ventilation valve and the emergency bypass valve.

Description

Technical Field

[0001] This utility model relates to the field of marine equipment technology, and in particular to a high-efficiency anti-clogging and fast-ventilation valve device suitable for oil tankers. Background Technology

[0002] A vent valve is a waterproof and breathable membrane combined with other materials such as plastics, metals, and silicone through injection molding, ultrasonic welding, etc., to form a sealable installation component. The main types are threaded vent valves and snap-on vent valves. The main performance indicators of a vent valve are air permeability and protection level.

[0003] During loading and unloading of oil or navigation, oil tankers need to balance the air pressure inside and outside the tanks through vent valves. However, traditional vent valves have the following drawbacks: impurities in oil vapor easily accumulate at the valve opening, causing blockage of the venting channel; venting efficiency is low; and the use of a single filter screen structure makes cleaning and maintenance inconvenient. Utility Model Content

[0004] This invention provides a high-efficiency anti-clogging and fast-venting valve device suitable for oil tankers, aiming to solve existing problems.

[0005] This utility model is implemented as follows: a high-efficiency anti-clogging and fast-venting valve device suitable for oil tankers. The high-efficiency anti-clogging and fast-venting valve device suitable for oil tankers includes: a shell, which is cylindrical and made of corrosion-resistant stainless steel. The top of the shell has an exhaust port and the bottom has an air inlet. The shell is equipped with an anti-clogging filtration system and a fast-venting mechanism. The anti-clogging filtration system includes a cyclone separator, a honeycomb filter, and a self-cleaning filter element. The cyclone separator, honeycomb filter, and self-cleaning filter element are arranged sequentially from the air inlet to the exhaust port. The side wall of the shell has a hatch for maintenance.

[0006] Preferably, the cyclone separator includes a conical cylinder and multiple guide vanes. The conical cylinder is fixed to the inner wall of the shell near the air inlet by a fixing member. The conical cylinder has an inlet on its side wall, a clean air outlet at the top, and a sedimentation outlet at the bottom. The inlet is connected to the air inlet through a pipe, and the sedimentation outlet penetrates the shell. Multiple guide vanes are spirally arranged on the inner wall of the conical cylinder to form a centrifugal separation channel.

[0007] Preferably, the tilt angle of the guide vane is 15°-25°.

[0008] Preferably, the surface of the conical cylinder and the surface of the guide vane are coated with a polytetrafluoroethylene coating.

[0009] Preferably, the cyclone separator further includes a sludge collection tank, which is connected to the sedimentation outlet. The sludge collection tank pipe is connected to the bottom of the outer wall of the shell, and the bottom of the sludge collection tank is connected to a sewage discharge channel equipped with a valve.

[0010] Preferably, the honeycomb filter is installed in the middle section of the inner wall of the housing. The filter pores of the honeycomb filter are hexagonal honeycomb structures. The honeycomb filter adopts a double-layer structure, including an outer filter and an inner filter. Multiple ceramic microspheres are filled between the two filter layers to form a turbulent layer.

[0011] Preferably, the self-cleaning filter element includes a filter cartridge, a filter element body, a piezoelectric vibrator, and a backflush air pipeline. The inlet of the filter cartridge is connected to the output end of the honeycomb filter screen. The piezoelectric vibrator is installed inside or outside the filter element to prevent clogging of the filter pores through vibration. A dust cover is provided around the piezoelectric vibrator, and the filter element body is placed inside the filter cartridge.

[0012] Preferably, the backflush air pipeline includes multiple backflush air pipes, a diversion chamber, multiple nozzles, multiple vent holes, a connecting pipe, and an air pump. One end of each of the multiple backflush air pipes is fixedly connected to the exhaust port, and the other end is fixedly connected to the diversion chamber. Each backflush air pipe is equipped with a solenoid valve at the end near the exhaust pipe. The diversion chamber is located outside the exhaust port inside the housing. One end of each of the multiple nozzles is fixedly connected to the diversion chamber, and the other end passes through the top of the filter cartridge and connects to the filter element. The multiple nozzles are arranged in a concentric multi-ring array. Multiple vent holes are opened at the bottom of the filter cartridge to blow fine particles out of the filter element using airflow, preventing the filter element from clogging. One end of the connecting pipe passes through the side wall of the housing and connects to the space between the filter cartridge and the honeycomb filter screen, and the other end connects to the side wall of the sludge collection tank.

[0013] Preferably, the rapid ventilation mechanism includes a main ventilation valve and multiple emergency bypass valves. The main ventilation valve is installed at the exhaust port, and the air inlet of the main ventilation valve is connected to the output end of the filter cartridge. The valve core of the main ventilation valve is driven by a memory alloy spring. The air inlets of the multiple emergency bypass valves are connected to the side wall of the main ventilation valve, and the air outlets are connected to the exhaust port through pipes.

[0014] Preferably, the pressure threshold of the emergency bypass valve is 10% higher than that of the main vent valve.

[0015] Compared with the prior art, the beneficial effects of this utility model are: The high-efficiency anti-clogging quick-ventilation valve device suitable for this oil tanker improves the impurity retention rate and reduces the clogging rate through three-stage filtration; it also reduces the frequency of manual maintenance by using a piezoelectric vibrator for dust removal; and it improves the ventilation efficiency through the dual-valve linkage design of the main ventilation valve and the emergency bypass valve. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present invention.

[0018] The labels in the attached diagram are as follows: 1. Shell; 2. Air inlet; 3. Exhaust outlet; 4. Door; 5. Cyclone separator; 501. Conical cylinder; 502. Inlet; 503. Clean air outlet; 504. Sediment outlet; 505. Guide vane; 6. Honeycomb filter; 601. Outer filter; 602. Inner filter; 603. Ceramic microspheres; 7. Self-cleaning filter element; 701. Filter cartridge; 702. Filter element body; 703. Piezoelectric vibrator; 704. Backflush air pipeline; 7041. Backflush air pipe; 7042. Diverter chamber; 7043. Nozzle; 7044. Vent hole; 7045. Through pipe; 7046. Air pump; 8. Main vent valve; 9. Emergency bypass valve; 10. Sludge collection tank. Detailed Implementation

[0019] To better understand the technical content of this utility model, the technical solution of this utility model will be further introduced and explained below with reference to specific embodiments, but it is not limited thereto. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of the embodiments of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] refer to Figure 1The high-efficiency anti-clogging and fast-ventilation valve device applicable to this oil tanker includes: a hull 1, which is cylindrical and made of corrosion-resistant stainless steel. The hull 1 has an exhaust port 3 at the top and an air inlet 2 at the bottom. The hull 1 is equipped with an anti-clogging filtration system and a fast-ventilation mechanism. The anti-clogging filtration system includes a cyclone separator 5, a honeycomb filter 6, and a self-cleaning filter element 7. The cyclone separator 5, the honeycomb filter 6, and the self-cleaning filter element 7 are arranged sequentially from the air inlet 2 to the exhaust port 3. A hatch 4 is opened on the side wall of the hull 1, which facilitates maintenance.

[0023] The cyclone separator 5 includes a conical cylinder 501 and multiple guide vanes 505. The conical cylinder 501 is fixed to the inner wall of the shell 1 near the air inlet 2 by a fastener. The surface of the conical cylinder 501 is coated with polytetrafluoroethylene to improve corrosion resistance and sealing. The side wall of the conical cylinder 501 is provided with an inlet 502, the top is provided with a clean air outlet 503, and the bottom is provided with a sedimentation outlet 504. The inlet 502 is connected to the air inlet 2 through a pipe, and the sedimentation outlet 504 penetrates the shell 1 to discharge the separated solid waste. Multiple guide vanes 505 are spirally arranged on the inner wall of the conical cylinder 501 to form a centrifugal separation channel. The inclination angle of the guide vanes 505 is 15°-25°. When solid waste is inconvenient to discharge directly, the cyclone separator 5 also includes a sludge collection tank 10, which is connected to the sedimentation outlet 504. The sludge collection tank 10 is connected to the bottom of the outer wall of the shell 1. The bottom of the sludge collection tank 10 is connected to a sewage discharge channel equipped with a valve. Solid waste discharged from the shell 1 is temporarily stored in the sludge collection tank 10. The valve is opened to discharge the solid waste from the sewage discharge channel. A honeycomb filter 6 is installed in the middle section of the inner wall of the shell 1. The filter holes of the honeycomb filter 6 are hexagonal honeycomb structures, which can evenly distribute the airflow. The honeycomb filter 6 adopts a double-layer structure, including an outer filter 601 and an inner filter 602. Multiple ceramic microspheres 603 are filled between the two filter layers to form a turbulent layer. The self-cleaning filter element 7 includes a filter cartridge 701, a filter element body 702, a piezoelectric vibrator 703, and backflush air pipes 7041-704. The inlet of the filter cartridge 701 is connected to the output end of the honeycomb filter screen 6. The piezoelectric vibrator 703 is installed inside or outside the filter element to prevent clogging of the filter pores through vibration. A dust cover is provided around the piezoelectric vibrator 703. The filter element body 702 is located inside the filter cartridge 701. The backflush air pipes 7041-704 include multiple backflush air pipes 7041, a diversion chamber 7042, multiple nozzles 7043, multiple vent holes 7044, a through pipe 7045, and an air pump 7046. One end of each of the multiple backflush air pipes 7041 is fixedly connected to the exhaust port 3, and the other end is fixedly connected to the diversion chamber 7042. Each backflush air pipe 7041 is equipped with a solenoid valve at one end near the exhaust pipe. The diversion chamber 7042 is located around the exhaust port 3 inside the housing 1. One end of multiple nozzles 7043 is fixedly connected to the diversion chamber 7042, and the other end passes through the top of the filter cartridge 701 and connects to the filter element. The multiple nozzles 7043 are arranged in a concentric multi-ring array. Multiple air holes 7044 are opened at the bottom of the filter cartridge 701 to blow out fine particles from the filter element using airflow, preventing the filter element from clogging. One end of the through pipe 7045 passes through the side wall of the housing 1 and connects to the space between the filter cartridge 701 and the honeycomb filter screen 6. The other end connects to the side wall of the dirt collection tank 10. The air pump 7046 is installed on the through pipe 7045. When the air pump 7046 is started, it draws the fine particles blown out of the filter into the dirt collection tank 10.

[0024] The rapid ventilation mechanism includes a main ventilation valve 8 and multiple emergency bypass valves 9. The main ventilation valve 8 is installed at the exhaust port 3. The air inlet 2 of the main ventilation valve 8 is connected to the output end of the filter cartridge 701. The valve core of the main ventilation valve 8 is driven by a memory alloy spring. The air inlets of the multiple emergency bypass valves 9 are connected to the side wall of the main ventilation valve 8, and the air outlets are connected to the exhaust port 3 through pipes. The pressure threshold of the emergency bypass valves 9 is 10% higher than that of the main ventilation valve 8. When the main ventilation valve 8 is blocked, the emergency bypass valves 9 are forcibly opened.

[0025] Working principle: After the gas enters the cyclone separator 5 through the inlet 2, it rotates in the centrifugal separation channel formed by the guide vanes 505, generating centrifugal force, which causes solid particles to move towards the cylinder wall and be discharged from the sedimentation outlet 504. Solid waste enters the sludge collection tank 10 for temporary storage, while the initially cleaned gas is output from the clean gas outlet 503. Subsequently, it passes axially through the honeycomb filter 6, which intercepts large particulate impurities. Multiple ceramic microspheres 603 between the two filter layers form a turbulent layer. Due to the large number of vortices and eddies in the turbulence, these vortices and eddies cause the distance between fluid molecules to shorten, thereby accelerating the speed of molecular diffusion. The gas that has undergone secondary cleaning continues to enter the self-cleaning filter element 7, which performs a third cleaning to intercept fine particles. Finally, the main vent valve 8 is opened, and the gas that has undergone three cleanings is output from the exhaust port 3. When cleaning the filter element, the solenoid valve is turned on, and the cleaning gas discharged from the exhaust port 3 is diverted to each nozzle 7043 through the backflush air pipe 7041 and the diversion chamber 7042. The airflow blows the fine particles in the filter element out of the filter cartridge 701 through multiple air holes 7044, and then is transported to the dirt collection tank 10 by the air pump 7046 through the through pipe 7045.

[0026] It should be noted that the main controller in this application can be a conventional known device that controls a servo motor, contact sensor, processor, alarm module, and drive module. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all connected by conventional means such as bolts, rivets, and welding that are mature in the prior art. Furthermore, the machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0027] The embodiments described above are only some embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be covered within the protection scope of this utility model. Parts not covered in this utility model are the same as or can be implemented using existing technology.

Claims

1. A high-efficiency anti-clogging quick-venting valve device suitable for oil tankers, comprising: The shell (1) is cylindrical and made of corrosion-resistant stainless steel. The shell (1) has an exhaust port (3) at the top and an air inlet (2) at the bottom. The shell (1) is equipped with an anti-clogging filtration system and a rapid ventilation mechanism. The anti-clogging filtration system includes a cyclone separator (5), a honeycomb filter (6) and a self-cleaning filter element (7). The cyclone separator (5), the honeycomb filter (6) and the self-cleaning filter element (7) are arranged sequentially from the air inlet (2) to the exhaust port (3). The shell (1) has a hatch (4) for maintenance on its side wall.

2. The high-efficiency anti-clogging quick-venting valve device suitable for oil tankers as described in claim 1, characterized in that, The cyclone separator (5) includes a conical cylinder (501) and multiple guide vanes (505). The conical cylinder (501) is fixed to the inner wall of the shell (1) near the air inlet (2) by a fastener. The side wall of the conical cylinder (501) is provided with an inlet (502), the top is provided with a clean air outlet (503), and the bottom is provided with a sedimentation outlet (504). The inlet (502) is connected to the air inlet (2) through a pipe, and the sedimentation outlet (504) penetrates the shell (1). Multiple guide vanes (505) are spirally arranged on the inner wall of the conical cylinder (501) to form a centrifugal separation channel.

3. The high-efficiency anti-clogging quick-venting valve device suitable for oil tankers as described in claim 2, characterized in that, The tilt angle of the guide vane (505) is 15°-25°.

4. The high-efficiency anti-clogging quick-venting valve device suitable for oil tankers as described in claim 2, characterized in that, The surface of the conical cylinder (501) and the surface of the guide vane (505) are coated with polytetrafluoroethylene.

5. The high-efficiency anti-clogging quick-venting valve device suitable for oil tankers as described in claim 2, characterized in that, The cyclone separator (5) also includes a sludge collection tank (10), which is connected to the sedimentation outlet (504). The sludge collection tank (10) is connected to the bottom of the outer wall of the shell (1), and the bottom of the sludge collection tank (10) is connected to a sewage discharge channel equipped with a valve.

6. The high-efficiency anti-clogging quick-venting valve device suitable for oil tankers as described in claim 1, characterized in that, The honeycomb filter (6) is installed in the middle section of the inner wall of the housing (1). The filter holes of the honeycomb filter (6) are hexagonal honeycomb structures. The honeycomb filter (6) adopts a double-layer structure, including an outer filter (601) and an inner filter (602). Multiple ceramic microspheres (603) are filled between the two filter layers to form a turbulent layer.

7. The high-efficiency anti-clogging quick-venting valve device suitable for oil tankers as described in claim 1, characterized in that, The self-cleaning filter element (7) includes a filter cartridge (701), a filter element body (702), a piezoelectric vibrator (703), and a backflush air pipe (7041) (704). The inlet of the filter cartridge (701) is connected to the output end of the honeycomb filter screen (6). The piezoelectric vibrator (703) is installed inside or outside the filter element to prevent the filter holes from being blocked by vibration. A dust cover is provided around the piezoelectric vibrator (703). The filter element body (702) is located inside the filter cartridge (701).

8. The high-efficiency anti-clogging quick-venting valve device suitable for oil tankers as described in claim 7, characterized in that, The backflush air pipe (7041) includes multiple backflush air pipes (7041), a diversion chamber (7042), multiple nozzles (7043), multiple vent holes (7044), a connecting pipe (7045), and an air pump (7046). One end of each backflush air pipe (7041) is fixedly connected to the exhaust port (3), and the other end is fixedly connected to the diversion chamber (7042). Each backflush air pipe (7041) is equipped with a solenoid valve at the end near the exhaust pipe. The diversion chamber (7042) is located in the exhaust port of the housing (1). Around the air inlet (3), one end of multiple nozzles (7043) is fixedly connected to the diversion chamber (7042), and the other end passes through the top of the filter cartridge (701) and connects to the filter element. Multiple nozzles (7043) are arranged in a concentric multi-ring array. Multiple air holes (7044) are opened at the bottom of the filter cartridge (701) to blow out fine particles from the filter element using airflow, preventing the filter element from clogging. One end of the pipe (7045) passes through the side wall of the shell (1) and connects to the space between the filter cartridge (701) and the honeycomb filter screen (6), and the other end connects to the side wall of the dirt collection tank (10).

9. The high-efficiency anti-clogging quick-venting valve device suitable for oil tankers as described in claim 7, characterized in that, The rapid ventilation mechanism includes a main ventilation valve (8) and multiple emergency bypass valves (9). The main ventilation valve (8) is installed at the exhaust port (3). The air inlet (2) of the main ventilation valve (8) is connected to the output end of the filter cartridge (701). The valve core of the main ventilation valve (8) is driven by a memory alloy spring. The air inlets of the multiple emergency bypass valves (9) are connected to the side wall of the main ventilation valve (8), and the air outlets are connected to the exhaust port (3) through pipes.

10. The high-efficiency anti-clogging quick-venting valve device suitable for oil tankers as described in claim 9, characterized in that, The pressure threshold of the emergency bypass valve (9) is 10% higher than that of the main vent valve (8).

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