A marine galley fume purification system

Abstract

The utility model belongs to marine kitchen equipment technical field discloses a marine kitchen oil fume purification system, including fume collecting hood, exhaust fan, is equipped with purification unit between fume collecting hood and exhaust fan, the purification unit includes the purification channel between fume collecting hood and exhaust fan, the inner wall of purification channel is smooth and is arranged, and oil collecting groove, centrifugal separation structure, collision filter module and silk screen demister are sequentially arranged in the purification channel along the flue gas flow direction, transparent oil collecting container, transparent oil collecting container is placed on fume collecting hood, and transparent oil collecting container is linked with oil collecting groove, and the extension joint is installed on oil collecting groove, and the extension joint penetrates the purification channel, and the outer surface of the extension joint is embedded with sealing ring. The utility model discloses a whole physical purification mechanism of centrifugal separation, collision filtration and silk screen demisting, completely gives up high voltage static electricity and photocatalytic assembly, eliminates the short circuit, the fire and the fire risk of the salt fog environment of marine dampness from the root, to satisfy the special safety standard on the sea.

Description

Technical Field

[0001] This utility model relates to the field of marine kitchen equipment technology, and in particular to a marine kitchen fume purification system. Background Technology

[0002] Marine kitchen fume purification systems are air handling devices specifically designed for ship kitchens. They are mainly used to collect, filter, and purify fumes, odors, and harmful gases generated during cooking, ensuring air quality and fire safety in the ship's enclosed environment.

[0003] Ship kitchens are cramped and poorly ventilated, and ships experience continuous rolling and vibration during navigation. Currently, the application of land-based kitchen fume purification equipment (such as high-voltage electrostatic and photocatalytic oxidation types) directly to ships presents the following problems: 1) Low safety: High-voltage electrostatic equipment is prone to short circuits and sparks in the humid and salty environment of ships, and is also sensitive to oil accumulation, resulting in a high risk of fire. 2) Inconvenient maintenance: During ship navigation, maintenance conditions are limited and complex maintenance procedures are difficult to perform. Therefore, we propose a marine kitchen fume purification system. Utility Model Content

[0004] In view of the problems of low safety and inconvenient maintenance of existing marine kitchen fume purification equipment, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A marine kitchen fume purification system includes a fume hood and an exhaust fan, with a purification unit provided between the fume hood and the exhaust fan; The purification unit includes a purification channel located between the smoke hood and the exhaust fan. The inner wall of the purification channel is smooth. Along the direction of flue gas flow, the purification channel is provided with an oil collection tank, a centrifugal separation structure, a collision filter module, and a wire mesh demister. A transparent oil collection container is placed on the smoke hood and is connected to the oil collection tank.

[0006] As a technical solution of the marine kitchen fume purification system of this utility model, the oil collection tank is equipped with a connected extension joint, the extension joint passes through the purification channel, and the outer surface of the extended part is embedded with a sealing ring.

[0007] As a technical solution of the marine kitchen fume purification system of this utility model, the transparent oil collection container has an integrally formed oil inlet pipe adapted to the protruding part of the extension joint, and the oil inlet pipe is connected to the extension joint, and the extension joint is sealed and installed in the oil inlet pipe by the sealing ring.

[0008] As a technical solution of the marine kitchen fume purification system of this utility model, the centrifugal separation structure includes a drive motor installed in the purification channel through a fixed plate, an impeller is installed on the output shaft of the drive motor, and the blades of the impeller are designed as curved surfaces that can generate strong centrifugal force.

[0009] As a technical solution of the marine kitchen fume purification system of this utility model, the collision filter module includes multiple layers of staggered and wave-shaped baffles installed in the purification channel, so that the flue gas flow channel is in a continuous "S" shape.

[0010] As a technical solution of the marine kitchen fume purification system of this utility model, the surface of the baffle is coated with an adhesive coating or processed with a micron-level rough structure.

[0011] As a technical solution of the marine kitchen fume purification system described in this utility model, the exhaust fan is located at the very end of the purification channel, providing traction wind force that runs through all purification units of the system.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model completely eliminates the risks of short circuits, sparking, and fires in the humid and salt spray environment of ships by using a fully physical purification mechanism of centrifugal separation, collision filtration, and wire mesh defogging, thereby meeting the special safety standards at sea.

[0013] 2. This utility model, by adopting a transparent oil collection container and modular sealing design, achieves "tool-free" visual management, which greatly reduces the difficulty of maintenance during navigation. At the same time, combined with negative pressure traction and curved impeller design, it can stably cope with the challenge of limited ventilation, so as to ensure purification efficiency under complex sea conditions. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the main structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model from a bottom view.

[0016] Figure 3 This is a cross-sectional structural diagram of the purification unit of this utility model.

[0017] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0018] Explanation of reference numerals in the attached figures: In the diagram: 1. Smoke hood; 2. Exhaust fan; 301. Purification channel; 302. Oil collection tank; 3021. Extension joint; 3022. Sealing ring; 303. Drive motor; 304. Impeller; 305. Baffle; 306. Wire mesh demister; 4. Transparent oil collection container; 401. Oil inlet pipe. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Reference Figures 1-4 A marine kitchen fume purification system is provided, which includes a fume hood 1 and an exhaust fan 2, with a purification unit provided between the fume hood 1 and the exhaust fan 2. The purification unit includes a purification channel 301 located between the smoke hood 1 and the exhaust fan 2. The inner wall of the purification channel 301 is smooth and polished, with a roughness Ra≤0.8μm to reduce oil adhesion. Along the flue gas flow direction, the purification channel 301 is sequentially equipped with an oil collection tank 302, a centrifugal separation structure, a collision filter module, and a wire mesh demister 306. The wire mesh demister 306 uses 400-mesh stainless steel wire mesh and is folded to capture residual aerosol oil droplets. In application, through the four-stage physical purification of the oil collection tank 302, centrifugal separation structure, collision filter module, and wire mesh demister 306, it replaces the land-based high-voltage electrostatic / photocatalytic technology, completely avoiding the risk of electrical short circuits and adapting to the humid salt spray environment of ships. The transparent oil collection container 4 is made of PC material and has a volume of ≥2L. The transparent oil collection container 4 is placed on the smoke hood 1 and is connected to the oil collection tank 302. In application, the transparent oil collection container 4 design allows for direct observation of the oil accumulation status, and maintenance can be determined without disassembly, solving the pain point of inconvenient maintenance during ship navigation.

[0021] Reference Figure 3 and Figure 4An extension joint 3021 is installed on the oil collection tank 302. The extension joint 3021 passes through the purification channel 301, and a sealing ring 3022 (such as a fluororubber sealing ring) is embedded in the outer surface of the protruding part. The transparent oil collection container 4 has an integrally formed oil inlet pipe 401 that is adapted to the protruding part of the extension joint 3021. The oil inlet pipe 401 is connected to the extension joint 3021. The extension joint 3021 is sealed and installed in the oil inlet pipe 401 through the sealing ring 3022. The inner diameter of the oil inlet pipe 401 matches the extension joint 3021 (tolerance ±0.1mm). The sealing ring 3022 realizes a quick-connect sealing connection. In application, the cooperation between the extension joint 3021 and the sealing ring 3022, through the flexible sealing connection design, offsets the risk of interface loosening caused by ship vibration and prevents oil leakage from contaminating the small kitchen space. At the same time, the integrated adaptation of the oil inlet pipe 401 can simplify the installation process and reduce maintenance complexity.

[0022] Reference Figure 3 and Figure 4 The centrifugal separation structure includes a drive motor 303 mounted in the purification channel 301 via a fixed plate. An impeller 304 is mounted on the output shaft of the drive motor 303. The blades of the impeller 304 are designed with a curved shape that can generate strong centrifugal force. The drive motor 303 is fixed by an anti-vibration bracket. The impeller 304 uses 316L stainless steel curved blades (tilt angle 25°) and has a rotation speed ≥2800rpm. It generates centrifugal force to separate large oil droplets. In application, the centrifugal separation design of the curved impeller 304 achieves efficient oil droplet separation through pneumatic optimization design (non-electrical means), avoids reliance on high-voltage power supply, and eliminates fire hazards.

[0023] Reference Figure 3 and Figure 4 The collision filter module includes multiple layers of staggered and wavy baffles 305 installed in the purification channel 301. The peak spacing of the baffles 305 is 50mm, making the flue gas flow channel a continuous "S" shape. In application, the "S" shaped flow channel prolongs the residence time of oil fumes and improves collision efficiency.

[0024] Reference Figure 3 and Figure 4 The surface of the baffle 305 is coated with an adhesive coating or processed with a micron-level rough structure. In application, the adhesive coating / micron-level rough structure on the surface of the baffle 305 enhances the oil droplet adsorption capacity and compensates for the limited purification path caused by the small space on the ship.

[0025] Reference Figures 1-4The exhaust fan 2 is located at the very end of the purification channel 301, providing traction airflow through all purification units. Shock-absorbing pads (such as nitrile rubber) can be installed at all connections. The base of the exhaust fan 2 adopts a spring damping structure to offset the impact of ship swaying. In application, the traction design at the end of the exhaust fan 2 can form negative pressure through all purification units, ensuring airflow stability in high humidity and high salt spray environments and avoiding fluctuations in purification efficiency due to ship swaying.

[0026] The working principle of this utility model is as follows: During the start-up phase, the exhaust fan 2 is turned on first, and at this time the oil fumes are drawn into the purification channel 301 through the fume collection hood 1; The fourth stage of purification: First, the flue gas is centrifugally ejected by the impeller 304, resulting in small and medium-sized oil droplets. The remaining oil fumes collide and adhere in the "S"-shaped baffle 305, and the wire mesh demister 306 captures micron-sized oil mist. During this process, large oil droplets are formed and intercepted by the oil collection tank 302. The liquid oil flows into the transparent oil collection container 4 through the extension joint 3021. Finally, the purified gas is discharged outdoors by the exhaust fan 2. Maintenance and operation phase: Observe the oil level through the transparent oil collection container 4. Clean it when it reaches 80% of its capacity. Clean the baffle 305 and wire mesh demister 306 monthly with 60℃ alkaline solution. Check the balance of the impeller 304 quarterly and remove carbon deposits from the blades.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A marine kitchen fume purification system, comprising a fume hood (1) and an exhaust fan (2), characterized in that: A purification unit is provided between the smoke hood (1) and the exhaust fan (2); The purification unit includes a purification channel (301) located between the smoke hood (1) and the exhaust fan (2). The inner wall of the purification channel (301) is smooth. The purification channel (301) is provided with an oil collection tank (302), a centrifugal separation structure, a collision filter module and a wire mesh demister (306) in sequence along the flue gas flow direction. A transparent oil collection container (4) is placed on the smoke hood (1) and is connected to the oil collection tank (302).

2. The marine kitchen fume purification system according to claim 1, characterized in that: An extension joint (3021) is installed on the oil collection tank (302). The extension joint (3021) passes through the purification channel (301), and a sealing ring (3022) is embedded in the outer surface of the protruding part.

3. The marine kitchen fume purification system according to claim 2, characterized in that: The transparent oil collection container (4) has an integrally formed oil inlet pipe (401) that is adapted to the protruding part of the extension joint (3021), and the oil inlet pipe (401) is connected to the extension joint (3021). The extension joint (3021) is sealed and installed inside the oil inlet pipe (401) by the sealing ring (3022).

4. The marine kitchen fume purification system according to claim 1, characterized in that: The centrifugal separation structure includes a drive motor (303) mounted in the purification channel (301) via a fixed plate. An impeller (304) is mounted on the output shaft of the drive motor (303). The blades of the impeller (304) are designed to be curved surfaces that can generate strong centrifugal force.

5. The marine kitchen fume purification system according to claim 1, characterized in that: The collision filter module includes multiple layers of staggered and wavy baffles (305) installed in the purification channel (301), so that the flue gas flow channel is in a continuous "S" shape.

6. The marine kitchen fume purification system according to claim 5, characterized in that: The surface of the baffle (305) is coated with an adhesive coating or processed with a micron-level rough structure.

7. The marine kitchen fume purification system according to any one of claims 1-6, characterized in that: The exhaust fan (2) is located at the very end of the purification channel (301) and provides traction airflow through all purification units of the system.

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