A device for detecting oil mist concentration in ship cabins

Abstract

This utility model relates to the field of oil mist detector technology, and discloses a device for detecting oil mist concentration in a ship's cabin. It includes a base plate and protective frames. Two protective frames are symmetrically arranged on the upper surface of the base plate. Glass plates are embedded and aligned with each other on the surface of both protective frames. LED light sources and illuminance sensors, aligned with each other, are installed in the two protective frames located inside the glass plates. Side plates are fixed to the sides between the protective frames, and electric push rods are installed on the outer surfaces of the side plates. A push block is fixed to the extended end of the electric push rod, and a sponge block is fixed around the outer ring of the push block. This utility model's technical solution, by setting a push block in the channel between the protective frames, with a sponge block fixed around its outer ring, and allowing it to be periodically pushed and moved by the electric push rod, can periodically move the push block across the glass surface of the protective frame during operation, wiping it and reducing the impact of airborne dust on the glass's light transmission effect, thus ensuring the accuracy of smoke detection.

Description

Technical Field

[0001] This utility model relates to the field of oil mist probe technology, specifically to a device for detecting oil mist concentration in ship cabins. Background Technology

[0002] In recent years, with the increasing global awareness of safety, port states have been increasing the number of PSC (Power Supply Control) inspection items for operating vessels. Among these, oil mist detection devices are needed in high-pressure oil pipeline areas in the engine room to detect leaks in advance and prevent a series of consequences such as fuel waste, equipment damage, environmental pollution, and ship arrest for rectification. Currently, many chemical tankers have hydraulically controlled cargo oil pumps and anchor winches. If a large amount of hydraulic oil leaks, it can easily cause serious consequences. In the early stages of high-pressure oil pipeline leaks, oil in the pipeline is sprayed out in the form of oil mist through tiny non-sealed points under pressure. The oil mist accumulates in the air to a certain concentration, forming oil particles or oil vapor that are difficult to see with the naked eye. Therefore, it is very important to use oil mist detection devices to detect early leaks and alert the crew to operate correctly.

[0003] The invention patent with publication number CN116818205A discloses a probe and detection method for detecting oil mist concentration in ship cabins. Based on the structure of the ship, a targeted oil mist concentration detection probe is proposed. The structure is designed based on the unique structure of the ship to improve the working efficiency of the probe.

[0004] The current technical solution suffers from at least the following drawbacks: dust in the ship's cabin can easily affect the light intensity emitted by the LED light source and the light intensity received by the probe. Furthermore, the presence of dust in the ventilation system makes it easier for dust to accumulate, affecting the detection results. Therefore, we propose a device for detecting oil mist concentration in ship cabins. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting oil mist concentration in ship cabins. A pusher block is installed in the channel between the protective frames, and a sponge block is fixed around its outer ring. The pusher block can be periodically pushed and moved by an electric pusher rod. During operation, the pusher block can periodically pass over the glass surface of the protective frame to wipe it, reducing the impact of dust in the air on the light transmission effect of the glass, ensuring the accuracy of smoke detection, and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for detecting oil mist concentration in a ship's cabin, comprising a base plate and a protective frame. Two protective frames are symmetrically arranged on the upper surface of the base plate. Glass plates are embedded and fixed on the surfaces of both protective frames and aligned with each other. LED light sources and illuminance sensors are installed in the two protective frames located inside the glass plates and aligned with each other. Side plates are fixed to the sides between the protective frames. Electric push rods are installed on the outer surfaces of the side plates. The protruding ends of the electric push rods extend through the space between the two protective frames, and a push block is fixed to the end of the protruding ends of the electric push rods. A sponge block is fixedly fitted around the outer ring of the push block and contacts the surface of the protective frames.

[0007] By adopting the above technical solution, the upper surface of the protective frame is attached to the surface of the upper plate and installed. When the fan is working, it can drive the airflow from the side to the space between the two protective frames. The presence of oil mist will affect the light intensity of the LED light source and will be detected by the light intensity sensor, thus achieving the purpose of detecting oil mist. The push block can be pushed periodically to wipe the glass with a sponge block, ensuring that the light transmission effect is not affected and thus ensuring the detection accuracy.

[0008] Optionally, the bottom plate surface on the side of the push block is provided with through holes, which are located between the two protective frames and are evenly distributed.

[0009] By adopting the above technical solution, the through holes allow airflow to easily enter between the protective frames and flow to detect oil mist.

[0010] Optionally, a fan is installed on the bottom surface of the base plate at the through hole location, with the fan outlet facing away from the base plate.

[0011] By adopting the above technical solution, the fan is designed to actively draw air into the protective frame for detection.

[0012] Optionally, the outer side of the protective frame has a bottom plate surface with through-holes, and there are multiple mounting holes.

[0013] By adopting the above technical solution, the device can be installed and fixed by using long bolts to penetrate the base plate.

[0014] Optionally, multiple LED light sources and illuminance sensors are provided, and both LED light sources and illuminance sensors are placed within a protective frame in the glass plate area.

[0015] By adopting the above technical solution, the setting of multiple LED light sources and multiple illuminance sensors can increase the amount of data detected and ensure the accuracy of detection.

[0016] Optionally, the outer surface of the glass sheet is flush with the outer surface of the protective frame.

[0017] By adopting the above technical solution, the surface of the glass slide is guaranteed to be wiped clean when the sponge block passes through.

[0018] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0019] 1. The technical solution of this application provides a push block in the channel between the protective frames, with a sponge block fixed around its outer ring. The push block can be periodically pushed and moved by an electric push rod. During operation, the push block can periodically pass over the glass surface of the protective frame to wipe it, reducing the impact of dust in the air on the light transmission effect of the glass and ensuring the accuracy of smoke detection.

[0020] 2. The technical solution of this application sets the fan to be installed under the base plate between the protective frames, and sets the installation position to be connected to the area between the protective frames through the through hole. When in use, air can be drawn to make the airflow pass between the protective frames, making it easier to detect oil mist in the air. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the oil mist concentration detection device for ship cabins according to this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the protective frame of the oil mist concentration detection device for ship cabins according to this utility model.

[0024] Figure 3 This is a schematic diagram of the bottom surface structure of the base plate of the oil mist concentration detection device for ship cabins according to this utility model.

[0025] In the diagram: 1. Base plate; 11. Mounting hole; 12. Through hole; 2. Protective frame; 21. Glass plate; 3. Side plate; 31. Electric actuator; 32. Push block; 321. Sponge block; 4. LED light source; 5. Illuminance sensor; 6. Fan. Detailed Implementation

[0026] Please see Figure 1-3 This utility model provides a technical solution: a device for detecting oil mist concentration in a ship's cabin, including a base plate 1 and a protective frame 2. Two protective frames 2 are symmetrically arranged on the upper surface of the base plate 1, and an air passage is formed between the two protective frames 2. Glass plates 21 are embedded and fixed on the surfaces of the two protective frames 2 and are aligned with each other. LED light sources 4 and light intensity sensors 5 are installed in the two protective frames 2 located inside the glass plates 21 and are aligned with each other.

[0027] During operation, the LED light source 4 emits light towards the illuminance sensor 5, which can detect the light intensity. When oil mist is present, the detected illuminance intensity will change, indicating the presence of oil mist. To ensure detection accuracy, multiple LED light sources 4 and illuminance sensors 5 are provided, and both LED light sources 4 and illuminance sensors 5 are placed in the protective frame 2 within the area of ​​the glass plate 21, which increases the amount of data detected and ensures detection accuracy.

[0028] Side plates 3 are fixed to the sides between the protective frames 2. An electric push rod 31 is installed on the outer surface of the side plate 3. The protruding end of the electric push rod 31 extends through the space between the two protective frames 2, and a push block 32 is fixed to the protruding end of the electric push rod 31. A sponge block 321 is fixed around the outer ring of the push block 32. The sponge block 321 is in contact with the surface of the protective frame 2. The outer surface of the glass plate 21 is flush with the outer surface of the protective frame 2. During use, the electric push rod 31 can be periodically moved to the right to drive the push block 32, thereby using the sponge block 321 to wipe the surface of the glass plate 21, so as to avoid dust accumulation affecting the light intensity and thus affecting the detection effect.

[0029] A through hole 12 is provided on the surface of the base plate 1 on the side of the push block 32. The through hole 12 is located between the two protective frames 2 and is evenly distributed. A through mounting hole 11 is provided on the surface of the base plate 1 outside the protective frame 2. There are multiple mounting holes 11. When installing and using, the base plate 1 is placed below and the protective frame 2 is placed above. The protective frame 2 is in contact with the surface of the plate above. Long bolts are screwed into the screw holes on the surface of the plate after passing through the mounting hole 11, so as to install and fix the device. The air passage between the protective frames 2 and one side of the side plate 3 are blocked. External air can enter the air passage from the opening on the right side, and then flow upward from the through hole 12 to carry the air into the detection. In order to ensure smooth air entry, a fan 6 is also installed on the bottom surface of the base plate 1 at the position of the through hole 12. The air outlet direction of the fan 6 is towards the side away from the base plate 1. When the fan 6 is started, it makes it easier for external air to enter the air passage and then be discharged outward.

[0030] In use, long bolts are inserted through the mounting holes 11 on both sides of the base plate 1 from bottom to top. The device is then installed and fixed in a suitable position inside the cabin, so that the upper surface of the protective frame 2 is in contact with the surface of the top plate and is blocked. There is only an air intake on the side of the protective frame 2, which achieves light blocking between the protective frames 2 and ensures that the position of the fan 6 is not blocked. The electric actuator 31, LED light source 4, illuminance sensor 5 and fan 6 are all connected to the industrial control computer. During detection, the intensity of the light emitted by the LED light source 4 is detected by the illuminance sensor 5, which causes the fan 6 to start blowing air away from the base plate 1, making it easier for outside air to pass between the two protective frames 2. Then, the oil flows through the through hole 12 and the fan 6. When oil mist is present, the light intensity of the LED light source 4 detected by the light sensor 5 changes because the oil mist passes between the LED light source 4 and the light intensity sensor 5. This allows the system to determine whether oil mist is present. During use, the electric push rod 31 is periodically controlled to move the push block 32 to the right. The outer ring sponge block 321 is used to wipe the glass surface of the protective frame 2 to remove dust, reduce the impact of dust on light transmittance, and ensure that the smoke detection effect is not affected. During use, the base plate 1 and other components can be periodically removed and the sponge block 321 can be replaced.

Claims

1. A device for detecting oil mist concentration in a ship tank, comprising a base plate (1) and a protective frame (2), characterized in that: The protective frame (2) is symmetrically arranged with two pieces placed on the upper surface of the base plate (1). Glass pieces (21) are embedded and fixed on the surfaces of the two protective frames (2) and aligned with each other. LED light sources (4) and illuminance sensors (5) are installed in the two protective frames (2) located inside the glass pieces (21) and aligned with each other. Side plates (3) are fixed between the protective frames (2). An electric push rod (31) is installed on the outer surface of the side plate (3). The protruding end of the electric push rod (31) extends through the space between the two protective frames (2). A push block (32) is fixed at the end of the protruding end of the electric push rod (31). A sponge block (321) is fixed around the outer ring of the push block (32). The sponge block (321) is in contact with the surface of the protective frame (2).

2. The device for detection of oil mist concentration in the hold of a ship according to claim 1, characterized in that: The bottom plate (1) on the side of the push block (32) has a through hole (12) on its surface. The through hole (12) is located between the two protective frames (2) and is evenly distributed.

3. The device for detection of oil mist concentration in the hold of a ship according to claim 2, characterized in that: A fan (6) is installed on the bottom surface of the base plate (1) at the location of the through hole (12), and the fan (6) blows air in the direction away from the base plate (1).

4. The device for detecting oil mist concentration in a ship's hold according to claim 1, characterized in that: The outer side of the protective frame (2) has a bottom plate (1) with through mounting holes (11) on its surface, and there are multiple mounting holes (11).

5. The device for detection of oil mist concentration in the hold of a ship according to claim 1, characterized in that: Multiple LED light sources (4) and illuminance sensors (5) are provided, and both LED light sources (4) and illuminance sensors (5) are placed in the protective frame (2) within the area of ​​the glass plate (21).

6. The device for detection of oil mist concentration in a ship tank according to claim 1, characterized in that: The outer surface of the glass sheet (21) is flush with the outer surface of the protective frame (2).

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