KR200240532Y1 - trap device for preventing flame of internal combustion engine - Google Patents

Abstract

The present invention relates to a trap device for preventing flame ejection of an internal combustion engine, and to prevent the misfire flame of an overheated internal combustion engine from being released to the outside. To this end, a strap-shaped trap body having a concave-convex portion formed in the transverse direction of the plate is bent and overlapped on the plate surface, and has a receiving space portion for accommodating the engine portion of the internal combustion engine therein. Part 100; And a plurality of flame shield meshes 103 installed on the inner circumferential surface of the trap body portion 100, so that flame flames generated by misunderstandings due to overheating of the engine portion are dispersed by the flame shield meshes 103. At the same time, the first flame is cooled, and the flame flame passing through the flame shielding mesh 103 is introduced between the uneven portions which are introduced through the inlet hole formed on the inner wall surface of the trap body part 100 and communicate with the inlet hole. Secondary cooling while passing through the flame discharge duct 107 is discharged to the outside in a non-flame state due to non-combustion due to oxygen deficiency.

Description

Trap device for preventing flame of internal combustion engine

The present invention relates to a flameout prevention trap device of an internal combustion engine, and more particularly, to a flameout prevention trap device of an internal combustion engine that can prevent the misfire flame of the overheated internal combustion engine to be discharged to the outside.

In general, a device for converting thermal energy generated by combustion of fuel into mechanical energy is called a heat engine. Heat engines are classified into an internal combustion engine and an external combustion engine. Here, the internal combustion engine is a high-temperature, high-pressure gas generated by burning fuel in the engine, such as a gasoline engine, a diesel engine, and a gas turbine, is directly converted into work energy. An external combustion engine converts steam energy into mechanical energy in a steam prime mover by generating hot, high pressure steam by heating hot water from a boiler such as a steam engine and a steam turbine.

Here, in moving machinery mechanisms such as ships and automobiles, an internal combustion engine is usually used. The general internal combustion engine structure consists of a system that generates power from an engine unit having a plurality of cylinder devices and converts this power into mechanical kinetic energy. A crank portion, which is an electric transmission portion, is connected to the engine portion, and the crank portion is surrounded by a crankcase. Therefore, the inside of the crankcase maintains a relatively high temperature and pressure by the high temperature and high pressure gas of the engine.

By the way, when the pressure inside the crankcase rises above the prescribed pressure (typically 0.03 to 0.05kg / cm ² ), the internal gas is discharged to the outside by the excessive pressure to keep the crankcase 1 always at normal pressure. Crankcase internal pressure relief valve device is widely used. However, when a fire occurs inside the crankcase, the flame spreads out widely, which causes fatal damage to the human body and various mechanisms around the crankcase.

In order to prevent this, around the engine unit of the internal combustion engine is installed a flame spray prevention trap device that can block the flame is ejected to the outside during the explosion.

1 is a side view of the crankcase. As shown in this figure, a flame ejection prevention trap device is attached to the opening portion of the crankcase 1 so that the flame can be blocked when a flame is generated by an error in the crankcase 1.

The trap device 3 is formed in a cylindrical shape having both ends of the strap-shaped straps 5 coupled to each other so that a plurality of rings 5 having a ring shape overlap each other and have hollow portions therein.

Referring to Figure 2, when looking at the process of making a single strap (5), a band-shaped strap 105 having a predetermined length is bent (bending) in a direction parallel to the plate surface, so that both ends meet and combine , One strap 5 is formed to form a ring shape. At this time, since the geometric inner circumferential length of the strap 5 formed in the ring shape is shorter than the geometric outer circumferential length, the inner circumferential portion during bending is made to be wrinkled to compensate for the outer circumferential length.

Thus, by overlapping a plurality of single traps made in this way, the cylindrical trap device 3 can be completed.

By such a configuration, the engine and the crankcase 1 of the internal combustion engine can be accommodated in the hollow portion inside the cylindrical trap. Here, when the high temperature, high pressure gas inside the engine and the crankcase 1 is caught and exploded, the flame by the explosion can be blocked by the trap device 3. At this time, the flame generated by the explosion can pass through the plate surface of each trap through the space formed by the pleats of each trap can flow out.

However, such a conventional flame spray trap device has a problem in that it does not properly block the exploding flame because it has a structure in which a plurality of straps 105 are simply overlapped. That is, the explosion flame is exposed to the outside as it passes through the plate surface of each trap through the space formed by the wrinkles of the trap as it is. As a result, the mechanical device outside the crankcase is damaged by the explosion flame, and even if the human life is avoided.

Accordingly, an object of the present invention is to provide a trap device for preventing flame ejection of an internal combustion engine, which is devised to solve the above problems, and which can prevent the misfire flame of an overheated internal combustion engine from being released to the outside.

1-side view of the crankcase.

Figure 2-a perspective view showing a state of manufacture of a conventional flame ejection trap device mounted on the crankcase of Figure 1;

Figure 3-perspective view of the flame ejection trap device according to the present invention.

4-enlarged view of portion A of FIG.

5-side cross-sectional view of FIG.

Figure 6 is a state diagram showing a state where the flame through the flameout prevention trap apparatus according to the present invention.

7-a state diagram showing a state in which the explosive flame is released to the outside by a conventional trap device.

8-a state diagram showing a state in which the explosive flame is released to the outside by the trap device according to the present invention.

<Description of the reference numerals for the main parts of the drawings>

1: crankcase 3: trap device

100: trap body portion 103: flame shield mesh body

105: strap 107: flame discharge duct

In order to achieve the above object, the flameout prevention trap device of an internal combustion engine according to the present invention is made of a belt-shaped strap having a concave-convex portion formed in a transverse direction of a length on a plate surface and bent and overlapped with an engine of an internal combustion engine therein. A cylindrical trap body portion provided with a receiving space portion for accommodating the portion; And a plurality of flame-blocking meshes installed on the inner circumferential surface of the trap body, wherein flame flames generated by misunderstandings caused by overheating of the engine portion are dispersed by the flame-blocking meshes and cooled at the same time as the flame-blocking meshes. The flame flame passing through the mesh body is secondarily cooled while passing through the flame discharge duct formed between each of the concave-convex portions communicating with the inflow hole through the inflow hole formed on the inner wall surface of the trap body part, and the fire caused by oxygen deficiency. Due to the combustion is characterized in that it is discharged to the outside in a non-flame state.

Here, the straps are formed in a single band shape and these straps can be folded about a central line in the longitudinal direction, thereby forming a flame discharge duct.

Accordingly, it is possible to prevent the misfire flame of the overheated internal combustion engine from being released to the outside.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

3 is a perspective view of a flame ejection trap device according to the present invention. As shown in this figure, the flameout prevention trap apparatus of an internal combustion engine is made by the belt-shaped strap 105 in which the uneven | corrugated part is formed in the transverse direction of the length on the board surface, bent and overlapped, and the engine of an internal combustion engine inside A cylindrical trap body portion 100 having a receiving space portion for accommodating the portion; And a plurality of flame shielding meshes 103 installed on the inner circumferential surface of the trap body portion 100.

Briefly describing the process of making the trap body portion 100, the uneven portion in the transverse direction of the length is formed on the plate of the relatively long strip-shaped strap 105. In this state, by folding the strap 105 around the center line in the longitudinal direction of the strap 105, the flame discharge duct 107 is a strap 105 between each uneven portion as shown in FIG. It can be formed in the transverse direction of the length of). In this state, when the strap 105 is wound in a circular shape, the cylindrical trap body portion 100 can be completed.

When the cylindrical trap body portion 100 is completed, a plurality of flame shielding mesh bodies 103 having a cylindrical shape are provided on the inner wall of the trap body portion 100, whereby a flame ejection prevention trap apparatus is manufactured and completed. Thus completed flame arrest trap device according to the present invention is mounted in the opening of the crankcase (1) of FIG.

By this configuration, when an explosion occurs inside the crankcase 1, the flame is not discharged to the outside by the flame ejection prevention trap device.

In more detail, as shown in FIG. 5 and FIG. 6, the flame flame generated by the error caused by the overheating of the engine unit is dispersed by the flame shielding mesh 103 and simultaneously cooled primarily.

The primary cooled flame is again formed between each uneven portion which passes through the flame shielding mesh 103 and flows through an inflow hole (not shown) formed on the inner wall surface of the trap body portion 100 to communicate with the inflow hole. After passing through the flame discharge duct 107 is discharged to the outside. At this time, the upper and lower side walls of the flame discharge duct 107 is formed of an uneven portion, so that it has a much larger surface area than the flat surface. As the contact area with the cold air is increased by the large surface area, the trap body part 100 can perform an excellent cooling function as compared with the related art. Thus, the flame passing through the flame discharge duct 107 can be secondarily cooled. At the same time, the flame discharge duct 107 causes a phenomenon in which oxygen is deficient instantaneously as a flame having a high flow rate passes, thereby causing a flame incombustible phenomenon due to oxygen deficiency. Thus, since the flame is not burned, the flame flame can be discharged to the outside in a non-flame state while changing to the smoke state.

Therefore, even if an explosion occurs inside the crankcase 1, the amount of the flame flame released to the outside becomes remarkably small.

By attaching the experimental data to this, to determine the flame discharge blocking effect of the trap apparatus according to the present invention. 7 and 8 are state diagrams showing a state diagram of the state of the explosion flame photographed with an infrared camera when an explosion occurs inside the trap apparatus.

7 is a state diagram showing a state in which the explosion spark is released to the outside by a conventional trap device. As shown in this figure, according to the conventional trap apparatus, it can be seen that the explosion flame is released to the outside relatively large.

On the contrary, Figure 8 is a state diagram showing a state in which the explosive flame is released to the outside by the trap device according to the present invention. As shown, using the trap apparatus according to the present invention, it can be seen that the flame emitted to the outside is significantly smaller than in the prior art.

As described above, according to the flameout prevention trap device of the internal combustion engine according to the present invention, it is possible to obtain the effect that the misfire flame of the overheated internal combustion engine can be prevented from being released to the outside.

Claims (2)

In the flameout prevention trap apparatus of an internal combustion engine, A belt-shaped trap body portion 100 in which a belt-shaped strap 105 having an uneven portion formed in a transverse direction of the plate surface is bent and overlapped, and has a receiving space portion for accommodating an engine portion of an internal combustion engine therein. ); And Including a plurality of flame shielding mesh 103 is installed on the inner peripheral surface of the trap body portion 100, The flame flame generated by the misunderstanding due to overheating of the engine unit is dispersed by the flame shielding mesh 103 and simultaneously cooled primarily. Flame discharge ducts that pass through the flame shielding mesh 103 is introduced between each of the concave-convex portion is introduced through the inlet hole formed on the inner wall surface of the trap body portion 100 in communication with the inlet hole A flame preventing trap device for an internal combustion engine, characterized in that the secondary cooling is passed through the 107 and discharged to the outside in a non-flame state due to incombustibility due to oxygen deficiency. The internal combustion of claim 1, wherein the straps 105 are formed in a single band shape and the straps 105 are folded about a central line in a longitudinal direction, thereby forming the flame discharge duct 107. Trap device for preventing engine flame.