CN201170743Y - A fuel oil leakage collection alarm device - Google Patents

Abstract

The utility model discloses a fuel oil leakage collection and alarm device, which comprises an oil collecting barrel body, an oil collecting barrel cover, a hollow ball and a micro switch, etc., the hollow ball is placed in the oil collecting barrel body, and the micro switch is installed in the oil collecting barrel Under the cover, when the collected fuel flows into the oil collecting barrel through the oil inlet, the hollow ball will float upward. When the hollow ball floats up to the set height, the hollow ball will touch the micro switch, which will generate an alarm signal immediately. The utility model has the advantages of reasonable structure, compact layout, simple manufacturing process, low cost, high control precision, reliable action, strong anti-interference ability, no malfunction, and no electromagnetic interference to surrounding equipment.

Description

A fuel oil leakage collection alarm device

technical field

The utility model relates to the technical field of automatic alarms, in particular to a fuel leakage collection and alarm device for marine diesel engines.

technical background

According to China Classification Society, General Engineering Office (2003) Circular No. 003 and No. 87 CCS "Circular". "Technical and Inspection Requirements for High-Pressure Fuel Casing Components of Marine Diesel Engines" "For international voyage ships built in and after July 1998...diesel engines shall be equipped with high-voltage bushing components and fuel leakage alarms that meet the requirements of this circular, regardless of their power. According to the notice of "Device", marine diesel engines must be equipped with a fuel leakage alarm device, which means that the leaked fuel is collected through the high-pressure casing, and then transported to the collector through the pipeline. As the liquid level rises, the alarm switch is triggered and the alarm is activated. .

At present, most of the common automatic alarm devices in China use the sensor principle, that is, a stainless steel hollow guide rod is fixed in the fuel leakage collector, a dry reed switch is fixed inside the guide rod, and a stainless steel floating ball is placed outside the guide rod. The floating ball can slide up and down along the guide rod, and a permanent magnet is fixed inside the floating ball. When the liquid level in the collector rises, the floating ball also rises. When the floating ball rises to a certain position, due to the effect of the permanent magnet, the dry The reed contacts close to generate an alarm signal. Such as the "liquid level switch on the fuel leakage collection cup device..." in the patent ZL02258596.6 "high-pressure fuel leakage alarm device" adopts the above-mentioned structural principle. The sensor with this structure is not only complicated in manufacturing process, but also because the structure is to put the reed switch into the stainless steel pipe, put the permanent magnet into the stainless steel floating ball, and the floating ball moves up and down to make the contact of the reed switch move. The technology itself of this structural principle is not mature enough, and there are still unresolved technical problems, because the stainless steel material has a certain magnetic isolation effect, and the magnetic field strength is not easy to control. If the magnetic field strength is too strong, it may cause malfunction, and the magnetic field strength is too weak. , and may make it invalid; therefore, the sensor control accuracy and reliability of this kind of structural principle are relatively poor.

Contents of the invention

Technical problem: In order to overcome the technical problems of poor control precision and reliability and complicated manufacturing process in the above-mentioned existing patented technology, the purpose of this utility model is to provide a compact structure, simple manufacturing process, high control precision and reliable action. The utility model relates to a fuel leakage collection and alarm device for marine diesel engines.

Technical scheme: in order to achieve the above object, the technical scheme for solving the technical problems of the utility model is:

A fuel oil leakage collection and alarm device is characterized in that the collection and alarm device includes an oil collection barrel body 5, an oil collection barrel cover 8, a hollow ball 3 and a micro switch 6, etc., and the oil collection barrel body 5 is connected to the The oil-collecting barrel cover 8 at the upper end is threaded; the hollow ball 3 is placed in the oil-collecting barrel 5; The oil inlet 2 and the oil discharge port of the oil discharge cock 1 are installed, and the upper part of the barrel body is provided with an oil overflow port 4 connected with the fuel tank; Cross on the fixing frame 7 that the oil collecting drum cover 8 central holes are fixed.

The diameter of the hollow ball 3 is slightly smaller than the inner diameter of the oil collecting barrel 5, and its material is stainless steel.

The bolt 9 is a hollow bolt, and the lead wire of the micro switch 6 passes through the bolt 9 from the inside to the outside to connect with the external alarm of the oil collecting barrel 5 .

Beneficial effects: the beneficial effects of the utility model are reflected in the following three points:

1. Combining the floating ball with the micro switch to form a fuel oil collection and leakage alarm device with high control precision and reliable action.

2. Reasonable structure, compact layout, simple manufacturing process and low cost.

3. Strong anti-interference ability, no malfunction occurs, and no electromagnetic interference to surrounding equipment.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a longitudinal sectional structure diagram of the utility model.

In the figure: 1. Oil drain cock, 2. Oil inlet, 3. Hollow ball, 4. Oil overflow port, 5. Oil collecting barrel body, 6. Micro switch, 7. Fixing frame, 8. Oil collecting barrel Cover, 9. Bolt.

Detailed ways

As shown in Figure 1, a fuel oil leakage collection alarm device includes an oil collecting barrel body 5, an oil collecting barrel cover 8, a hollow ball 3 and a micro switch 6, etc., wherein the oil collecting barrel body 5 and the oil collecting barrel located at its upper end The cover 8 is connected by threads, and the hollow ball 3 is placed in the oil collecting barrel body 5. The lower part of the barrel body of the oil collecting barrel body 5 is provided with an oil inlet 2 connected with the high-pressure oil casing to collect the leaked fuel, and the oil collecting barrel The secluded lower part of the barrel body 5 is also provided with an oil drain port for installing the oil drain cock 1. After the leakage alarm is removed, the oil drain cock 1 needs to be opened, and the fuel oil in the oil collecting barrel body 5 is drained, and then Close the oil drain cock 1 again to recover the device. The upper portion of the barrel body of the oil collecting barrel 5 is provided with an oil overflow port 4 that is connected with the fuel tank. After the leaked fuel exceeds a fixed value, the fuel oil in the oil collecting barrel body 5 will flow back to the fuel tank through the oil overflow port 4. Use a hollow bolt to pass through the center hole of the oil collecting barrel cover 8 from the top and fix the fixed frame 7 with nuts, then install the micro switch 6 on the fixed frame 7, and the lead wire of the micro switch 6 passes through the hole of the hollow bolt Lead out the oil-collecting barrel body 5 to be connected with the external alarm of the oil-collecting barrel body 5, and finally seal the lead hole in the middle of the bolt 5 with filler. When the fuel flows into the oil collecting barrel 5 through the oil inlet 2, the hollow ball 3 will float upwards. When the hollow ball 3 floats up to the set height, the hollow ball 3 will touch the micro switch 6, and the micro switch 6 will immediately Generate an alarm signal.

Claims (3)

1, a kind of fuel leakage is collected warning device, it is characterized in that: this collection warning device comprises oil-collecting staving (5), oil-collecting bung (8), hollow ball (3) and microswitch (6) etc., and described oil-collecting staving (5) links to each other for screw thread with the oil-collecting bung (8) that is positioned at its upper end; Described hollow ball (3) is placed in the oil-collecting staving (5); The out-of-the-way down site distribution of the staving of described oil-collecting staving (5) is provided with the drain the oil fuel outlet of cock (1) of the oil-in (2) that is connected with the hydraulic oil sleeve pipe and installation, and the out-of-the-way upper part of staving is provided with the oil spilling mouth (4) that is connected with fuel tank; Described microswitch (6) is installed in and adopts bolt (9) to pass on the fixing fixed mount (7) of oil-collecting bung (8) center pit from upper top.

2, a kind of fuel leakage according to claim 1 is collected warning device, and it is characterized in that: the diameter of described hollow ball (3) is slightly less than the internal diameter of oil-collecting staving (5), and its material is a stainless steel.

3, a kind of fuel leakage according to claim 1 is collected warning device, and it is characterized in that: described bolt (9) is a hollow bolt, and the lead-in wire of microswitch (6) passes the external alarm of bolt (9) and oil-collecting staving (5) from inside to outside and is connected.