A marine silencing ventilation pipe

Abstract

The present invention relates to the technical field related to ventilation systems, and discloses a marine silencer ventilation duct, which separates the suspended ventilation duct from a hull fastener by the principle of magnetic suspension, thereby cutting off the transmission path of vibration. Meanwhile, adjacent suspended ventilation ducts are also separated by magnetic force, so that there is no direct contact between adjacent suspended ventilation ducts, thereby cutting off the transmission path of vibration along the suspended ventilation duct, thereby reducing the noise generated by vibration. In addition, adjacent suspended ventilation ducts are also one-way sealed by a one-way sealing ring, so that the air flow inside the suspended ventilation duct will not leak out of the duct. Meanwhile, the setting of the conical plate utilizes the Bernoulli principle, and generates negative pressure on the inner side of the gap between adjacent suspended ventilation ducts. The negative pressure is utilized to suck external air into the suspended ventilation duct, thereby cleverly realizing the interaction of air inside and outside the duct, thereby enhancing the ventilation capacity of the ventilation system.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation pipe systems, in particular to a marine silencing ventilation pipe. Background Art

[0002] With the continuous development of the shipping industry, the comfort and quietness of the ship's internal environment has gradually become an important aspect of concern to ship owners and passengers. The ventilation system is an important part of the ship's internal environment. It is responsible for regulating the temperature, humidity and air quality in the cabin. However, the ventilation system often generates noise during operation. This noise not only affects the comfort of personnel, but may also interfere with the normal operation of ship equipment.

[0003] Traditional marine ventilation pipes, such as a marine silencer ventilation pipe with announcement number CN218086000U, use silencer plates and silencer cotton to reduce noise, but it is still difficult to solve the noise caused by vibration or resonance transmitted by the pipe itself, especially when the ship is sailing on the sea, it is inevitable that the fasteners will loosen, making the ventilation pipe itself more likely to resonate and generate noise. Summary of the invention

[0004] The purpose of the present invention is to provide a marine silencer ventilation pipe to solve the problem raised in the above background technology that the noise caused by the vibration or resonance transmitted by the pipe itself is still difficult to solve in the current traditional marine ventilation pipe.

[0005] To achieve the above object, the present invention provides the following technical solution: a marine silencing ventilation pipe, comprising a fixed sleeve, the fixed sleeve is divided into multiple sections, each section of the fixed sleeve is fixedly connected by a flange, a suspended ventilation pipe is arranged inside the fixed sleeve, the suspended ventilation pipe is suspended in the fixed sleeve by magnetic force, adjacent suspended ventilation pipes are mutually repelled by magnetic force, and a gap is left for airflow to pass through;

[0006] A first one-way sealing ring is embedded on the outer side of the first annular plate at the end of the suspended ventilation pipe, a second one-way sealing ring is embedded on the outer side of the second annular plate adjacent to the front end of the suspended ventilation pipe, and a conical plate is fixedly connected to the inner side of the end of the suspended ventilation pipe;

[0007] A ventilation drive ring is also fixedly connected to the outside of some fixed sleeves, an electromagnetic coil is arranged inside the ventilation drive ring, a permanent magnet is fixedly connected to the outside of the suspended ventilation pipe, a Hall element is arranged outside the permanent magnet, and a shaftless fan is fixedly connected inside the permanent magnet.

[0008] Furthermore, ventilation holes are densely arranged on the outside of the fixed sleeve to disperse the air entering the suspended ventilation pipe and reduce the exhaust noise.

[0009] Furthermore, the fixed sleeves are connected end to end, each section of the fixed sleeves is fixedly connected via a flange, and the fixed sleeves are connected to the hull via fasteners, so that the fasteners have no direct contact with the suspended ventilation pipe and will not transmit vibration.

[0010] Furthermore, the end of the suspended ventilation pipe is fixedly connected to a first annular plate, the outer side of the first annular plate is fixedly connected to a first positioning cylinder, the outer side of the first positioning cylinder is nested with a first magnet ring, the inner side of the end of the fixed sleeve is inlaid with a second magnet ring, the front end of the adjacent suspended ventilation pipe is fixedly connected to a second annular plate, the outer side of the second annular plate is fixedly connected to a second positioning cylinder, the outer side of the second positioning cylinder is sleeved with a third magnet ring, and the inner side of the front end of the adjacent fixed sleeve is inlaid with a fourth magnet ring, so that the suspended ventilation pipe can be suspended by magnetic force for positioning.

[0011] Furthermore, the first magnet ring and the second magnet ring have like poles facing each other, and the third magnet ring and the fourth magnet ring have like poles facing each other, and the suspended ventilation pipe can be supported by the principle that like-pole magnets repel each other.

[0012] Furthermore, there is a gap between the first annular plate at the end of the suspended ventilation duct and the second annular plate at the front end of the adjacent suspended ventilation duct, a fifth magnet ring is inlaid on the outer side of the first annular plate, and a sixth magnet ring is inlaid on the outer side of the second annular plate. The principle of like charges repel each other is used to keep adjacent suspended ventilation ducts away from each other, ensuring that a gap is left for air to pass through.

[0013] Furthermore, the fifth magnet ring and the sixth magnet ring have the same poles facing each other, and the gap can be expanded by the principle that like-pole magnets repel each other.

[0014] Furthermore, the first one-way sealing ring is provided with a first tooth-shaped groove, and the second one-way sealing ring is provided with a second tooth-shaped groove, and the first tooth-shaped groove and the second tooth-shaped groove cooperate to restrict the one-way flow of air.

[0015] Furthermore, the first tooth-shaped grooves and the second tooth-shaped grooves are arranged alternately, and the opening directions of the first tooth-shaped grooves and the second tooth-shaped grooves are both toward the inside of the suspended ventilation pipe, so that the airflow can only flow from the outside to the inside of the suspended ventilation pipe.

[0016] Furthermore, the magnetic poles of adjacent permanent magnets are in opposite directions, and the current direction of the electromagnetic coil is regulated by an electronic controller, thereby driving the suspended ventilation pipe to rotate through the regulation of the electronic controller.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention discloses a ship-used silencer ventilation duct, which separates the suspended ventilation duct from the hull fasteners by the principle of magnetic levitation, thereby cutting off the transmission path of vibration. Meanwhile, adjacent suspended ventilation ducts are also separated by magnetic force, so that there is no direct contact between the adjacent suspended ventilation ducts, thereby cutting off the transmission path of vibration along the suspended ventilation duct, thereby reducing the noise generated by vibration. In addition, adjacent suspended ventilation ducts are one-way sealed by one-way sealing rings, so that the air flow inside the suspended ventilation duct will not leak out of the duct. Meanwhile, the setting of the conical plate utilizes the Bernoulli principle, thereby generating negative pressure on the inner side of the gap between adjacent suspended ventilation ducts, and utilizing the negative pressure to suck external air into the suspended ventilation duct, thereby cleverly realizing the interaction of air inside and outside the duct, thereby enhancing the ventilation capacity of the ventilation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0021] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of the first one-way sealing ring and the second one-way sealing ring of the present invention;

[0023] Figure 5 This is a schematic diagram of the airflow direction of the suspended ventilation duct of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the ventilation drive ring of the present invention;

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the ventilation drive ring of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the shaftless fan of the present invention.

[0027] Numbers in the figure: 1. fixed sleeve; 101. ventilation hole; 2. suspended ventilation pipe; 201. first annular plate; 202. first positioning cylinder; 203. second annular plate; 204. second positioning cylinder; 3. first magnet ring; 4. second magnet ring; 5. third magnet ring; 6. fourth magnet ring; 7. fifth magnet ring; 8. sixth magnet ring; 9. first one-way sealing ring; 901. first toothed groove; 902. second toothed groove; 10. second one-way sealing ring; 11. conical plate; 12. ventilation drive ring; 1201. electromagnetic coil; 1202. permanent magnet; 1203. Hall element; 13. shaftless fan. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0030] Combination Figure 1 - Figure 8 A marine silencer ventilation pipe comprises a fixed sleeve 1, wherein the fixed sleeve 1 is connected end to end, each section of the fixed sleeve 1 is fixedly connected by a flange, and the fixed sleeve 1 is connected to the hull by a fastener, and ventilation holes 101 are densely opened on the outer side of the fixed sleeve 1. The fixed sleeve 1 is divided into multiple sections, and each section of the fixed sleeve 1 is fixedly connected by a flange, and a suspended ventilation pipe 2 is arranged inside the fixed sleeve 1.

[0031] like Figure 3 As shown, the end of the suspended ventilation duct 2 is fixedly connected to a first annular plate 201, the outer side of the first annular plate 201 is fixedly connected to a first positioning cylinder 202, the outer side of the first positioning cylinder 202 is nested with a first magnet ring 3, the inner side of the end of the fixed sleeve 1 is inlaid with a second magnet ring 4, the front end of the adjacent suspended ventilation duct 2 is fixedly connected to a second annular plate 203, the outer side of the second annular plate 203 is fixedly connected to a second positioning cylinder 204, the outer side of the second positioning cylinder 204 is sleeved with a third magnet ring 5, the inner side of the front end of the adjacent fixed sleeve 1 is inlaid with a fourth magnet ring 6, the same poles of the first magnet ring 3 and the second magnet ring 4 are opposite, and the same poles of the third magnet ring 5 and the fourth magnet ring 6 are opposite, so that the suspended ventilation duct 2 can be suspended in the fixed sleeve 1 by magnetic force.

[0032] There is a gap between the first annular plate 201 at the end of the suspended ventilation pipe 2 and the second annular plate 203 at the front end of the adjacent suspended ventilation pipe 2. The fifth magnet ring 7 is inlaid on the outer side of the first annular plate 201, and the sixth magnet ring 8 is inlaid on the outer side of the second annular plate 203. The fifth magnet ring 7 and the sixth magnet ring 8 have the same poles facing each other, so that the adjacent suspended ventilation pipes 2 repel each other through magnetic force, leaving a gap for airflow to pass through.

[0033] like Figure 3 and Figure 4As shown, a first one-way sealing ring 9 is inlaid on the outer side of the first annular plate 201 at the end of the suspended ventilation pipe 2, and a second one-way sealing ring 10 is inlaid on the outer side of the second annular plate 203 at the front end of the adjacent suspended ventilation pipe 2. A first tooth-shaped groove 901 is opened on the first one-way sealing ring 9, and a second tooth-shaped groove 902 is opened on the second one-way sealing ring 10. The first tooth-shaped groove 901 and the second tooth-shaped groove 902 are arranged alternately, and the opening directions of the first tooth-shaped groove 901 and the second tooth-shaped groove 902 are both toward the inner side of the suspended ventilation pipe 2, so that when the airflow from the suspended ventilation pipe 2 When the inside of the tube 2 wants to flow outward through the gap, part of the airflow will change direction due to the obstruction of the first toothed groove 901 and the second toothed groove 902, and then change direction relative to the original airflow direction, thereby greatly increasing the resistance of the airflow through the first toothed groove 901 and the second toothed groove 902. When the airflow enters the inside of the suspended ventilation tube 2 from the outside through the gap between the first one-way sealing ring 9 and the second one-way sealing ring 10, it is not subject to resistance, thus achieving a contactless one-way airtight seal, ensuring that vibrations are not transmitted while also preventing airflow leakage.

[0034] like Figure 3 As shown, a conical plate 11 is fixedly connected to the inner side of the end of the suspended ventilation duct 2. The setting of the conical plate 11 makes the airflow increase rapidly when passing through the end of the suspended ventilation duct 2 due to the narrowing of the space, while the flow velocity in the area blocked by the conical plate 11 is relatively low. According to Bernoulli's principle, the pressure in the area behind the conical plate 11 will decrease, thereby generating a negative pressure area, so that the external air can be drawn into the suspended ventilation duct 2 from the gap between the first one-way sealing ring 9 and the second one-way sealing ring 10, thereby enhancing the ventilation capacity of the ventilation system.

[0035] like Figure 7 As shown, a ventilation drive ring 12 is also fixedly connected to the outside of the partial fixed sleeve 1, and an electromagnetic coil 1201 is arranged inside the ventilation drive ring 12. The current direction of the electromagnetic coil 1201 is regulated by an electronic controller. A permanent magnet 1202 is fixedly connected to the outside of the suspended ventilation duct 2. The magnetic poles of adjacent permanent magnets 1202 are in opposite directions. A Hall element 1203 is arranged outside the permanent magnet 1202. A shaftless fan 13 is fixedly connected inside the permanent magnet 1202. In this way, the position of the permanent magnet 1202 can be detected by the Hall element 1203, and then the current direction of the electromagnetic coil 1201 is regulated by the electronic controller, and the magnetic force is used to continuously push the permanent magnet 1202, thereby pushing the suspended ventilation duct 2 to rotate slowly, driving the shaftless fan 13 to rotate, and thereby using the shaftless fan 13 to drive the airflow to circulate in the suspended ventilation duct 2. In this way, a distributed ventilation drive ring 12 can be used to replace a single fan drive. The distributed ventilation drive ring 12 has a low rotation speed, and at the same time, the wind pressure in the suspended ventilation duct 2 is relatively balanced, thereby greatly reducing the noise in the ventilation duct.

[0036] Working principle: When using a marine silencer ventilation duct, firstly energize the electromagnetic coil 1201, use the Hall element 1203 to detect the position of the permanent magnet 1202, and then use the electronic controller to adjust the current direction of the electromagnetic coil 1201, thereby changing the magnetic pole direction of the electromagnetic coil 1201, and using the principle of like poles repelling and opposite poles attracting to continuously push the permanent magnet 1202, thereby driving the suspended ventilation duct 2 to rotate slowly, driving the shaftless fan 13 to rotate, and using the shaftless fan 13 to drive the airflow to circulate in the suspended ventilation duct 2.

[0037] When the airflow passes through the conical plate 11 at the end of the suspended ventilation duct 2, the airflow velocity increases due to the narrowing of the space, while the velocity in the area behind the conical plate 11 is lower. According to Bernoulli's principle, the pressure in the area behind the conical plate 11 will decrease, thereby generating a negative pressure area behind the conical plate 11. The negative pressure is used to draw the external air into the suspended ventilation duct 2 from the gap between the first one-way sealing ring 9 and the second one-way sealing ring 10. Due to the orientation of the first toothed grooves 901 and the second toothed grooves 902 on the first one-way sealing ring 9 and the second one-way sealing ring 10, the airflow flowing from the outside to the inside will not be hindered. When the airflow flows from the inside to the outside of the suspended ventilation duct 2, part of the airflow will change its direction due to the obstruction of the first toothed grooves 901 and the second toothed grooves 902, and then collide with the original airflow direction, causing the airflow to lose its flow power, thereby preventing the air pressure inside the suspended ventilation duct 2 from leaking.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine silencing ventilation pipe, comprising a fixed sleeve (1), characterized in that: The fixed sleeve (1) is divided into a plurality of sections, each section of the fixed sleeve (1) is fixedly connected via a flange, a suspended ventilation pipe (2) is arranged inside the fixed sleeve (1), the suspended ventilation pipe (2) is suspended in the fixed sleeve (1) by magnetic force, and adjacent suspended ventilation pipes (2) repel each other by magnetic force, leaving a gap for airflow to pass through; A first one-way sealing ring (9) is embedded on the outer side of the first annular plate (201) at the end of the suspended ventilation pipe (2), a second one-way sealing ring (10) is embedded on the outer side of the second annular plate (203) at the front end of the adjacent suspended ventilation pipe (2), and a conical plate (11) is fixedly connected to the inner side of the end of the suspended ventilation pipe (2); A ventilation drive ring (12) is also fixedly connected to the outside of the partial fixed sleeve (1), an electromagnetic coil (1201) is arranged inside the ventilation drive ring (12), a permanent magnet (1202) is fixedly connected to the outside of the suspended ventilation pipe (2), a Hall element (1203) is arranged outside the permanent magnet (1202), and a shaftless fan (13) is fixedly connected inside the permanent magnet (1202).

2. A marine silencing ventilation pipe according to claim 1, characterized in that: The outer side of the fixed sleeve (1) is densely provided with ventilation holes (101).

3. A marine silencing ventilation pipe according to claim 1, characterized in that: The fixed sleeves (1) are connected end to end, each section of the fixed sleeves (1) is fixedly connected via a flange, and the fixed sleeves (1) are connected to the hull via a fastener.

4. A marine silencing ventilation pipe according to claim 1, characterized in that: The end of the suspended ventilation pipe (2) is fixedly connected to a first annular plate (201), the outer side of the first annular plate (201) is fixedly connected to a first positioning cylinder (202), the outer side of the first positioning cylinder (202) is embedded with a first magnet ring (3), the inner side of the end of the fixed sleeve (1) is embedded with a second magnet ring (4), the front end of the adjacent suspended ventilation pipe (2) is fixedly connected to a second annular plate (203), the outer side of the second annular plate (203) is fixedly connected to a second positioning cylinder (204), the outer side of the second positioning cylinder (204) is sleeved with a third magnet ring (5), and the inner side of the front end of the adjacent fixed sleeve (1) is embedded with a fourth magnet ring (6).

5. A marine silencing ventilation pipe according to claim 4, characterized in that: The first magnet ring (3) and the second magnet ring (4) have the same poles facing each other, and the third magnet ring (5) and the fourth magnet ring (6) have the same poles facing each other.

6. A marine silencing ventilation pipe according to claim 1, characterized in that: There is a gap between the first annular plate (201) at the end of the suspended ventilation pipe (2) and the second annular plate (203) at the front end of the adjacent suspended ventilation pipe (2), the first annular plate (201) is inlaid with a fifth magnet ring (7) on the outside, and the second annular plate (203) is inlaid with a sixth magnet ring (8) on the outside.

7. A marine silencing ventilation pipe according to claim 6, characterized in that: The fifth magnet ring (7) and the sixth magnet ring (8) have the same poles facing each other.

8. The marine silencing ventilation pipe according to claim 1, characterized in that: The first one-way sealing ring (9) is provided with a first tooth-shaped groove (901), and the second one-way sealing ring (10) is provided with a second tooth-shaped groove (902).

9. A marine silencing ventilation pipe according to claim 8, characterized in that: The first tooth-shaped grooves (901) and the second tooth-shaped grooves (902) are arranged alternately with each other, and the opening directions of the first tooth-shaped grooves (901) and the second tooth-shaped grooves (902) are both toward the inside of the suspended ventilation pipe (2).

10. A marine silencing ventilation pipe according to claim 9, characterized in that: The magnetic poles of adjacent permanent magnets (1202) are in opposite directions, and the current direction of the electromagnetic coil (1201) is regulated by an electronic controller.

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