JPH0666128A - Solid separation device for engine exhaust gas - Google Patents

Abstract

PURPOSE:To obtain a small-sized and non-powered device which separates and removes soot included in engine exhaust gas. CONSTITUTION:An exhaust gas guide pipe 2 guides pressure exhaust gas from an engine. A conical separator 4, being an inverted cone vessel, has an exhaust gas introducing passage 5 which is opened in respect to an inner peripheral surface of a large diameter part on an upper end part thereof, in a tangential direction from the exhaust gas guide pipe, a solid discharge port 6 on an end of the cone at the lowest side of the vessel, and a gas discharge port 8 which is lead to outside, on the upper end surface of the vessel. A solid stock case which can be opened and closed is communicated with the separator through the solid discharge port and opened to the atmosphere through a filter 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for separating solid matter such as soot contained in engine exhaust gas in automobiles, construction machinery, ships, agricultural equipment and the like.

[0002]

2. Description of the Related Art Conventionally, engine exhaust gas from automobiles, especially diesel engine vehicles, etc., is released into the atmosphere without removing solid matters such as soot, and it is clear that this is a cause of air pollution. Is.

[0003] Generally, as a device for separating and removing solid substances in the air for flue gas, dust removal and the like in factories and the like, a filtration type separation device using a filter, a centrifugal force separation device using a rotating blade, etc. are used.

Therefore, a method has been proposed in which the above separating device is connected to an engine exhaust pipe of an automobile or the like to separate and remove solid matter in exhaust gas, and any separating device is connected to an exhaust pipe of an automobile or the like. However, in the above filtration type separation device, it takes time and money to replace the filter, and if the replacement is not done, clogging of the filter may cause exhaust failure and engine stop. In addition, there is a problem in that the centrifugal force separating device consumes additional power for rotating the blade.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a solid separation device for engine exhaust gas which realizes connection to an exhaust pipe of an automobile or the like and does not require additional power.

[0006]

In order to achieve the above object, the present invention provides an exhaust gas guide tube for guiding pressure exhaust gas from an engine and an inverted conical vessel, which has a large diameter portion at its upper end. There is an exhaust gas introduction path that opens in the tangential direction from the exhaust gas guide pipe with respect to the peripheral surface, a solid material discharge port is provided at the top of the lower end of the vessel, and a gas discharge port that communicates with the outside air is provided at the upper end surface of the vessel. An open conical separator, an openable solid stock case that is in communication with the separator through the solids outlet and is open to the outside air through a filter,
We propose a solid separation device for engine exhaust gas. Embodiments of the present invention will be described below with reference to the drawings.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The solids separating apparatus shown in FIGS. 1, 2 and 3 is an example of a type which is connected to an exhaust pipe of an engine of an automobile and is installed inside a cover (1) having a substantially cylindrical shape. First, an exhaust gas guide pipe (2) whose one end is to be connected to an exhaust pipe of an engine and which is closed at the other end is inserted into one side of the cover (1) in the longitudinal direction of the cover (1), and its opening is formed. Cover the end (2 ') (1)
Five conical separators (4), which protrude from the one end face as appropriate and are substantially inverted cone-shaped, are provided beside the guide tube (2) at a small distance from the guide tube (2) and the separator (4). … They are installed in a row along the guide tube (2) so as to be adjacent to each other, and the large diameter portion of each upper end of these separators (4) and the guide tube (2) are connected to each other. The exhaust gas introduction passages (5) extending from (2) at an acute angle (about 65 degrees as an example) with the axis and extending tangentially to the large diameter portion are connected to each other. As shown in FIG. 3, the introduction passages (5) are gradually squeezed from the guide pipe (2) to the separator (4) to form a vertically long introduction port (5 ') on the inner peripheral surface of the large diameter portion. ) Is open.

At the conical tops of the lower ends of the separators (4) ..., solid material discharge ports (6) ... which open to the solid material stock case (7) formed at the bottom are respectively opened, and the separators are also separated. (4) At the center of each upper end surface of the cover, the cover (1)
The gas discharge pipes (10) inserted through the inside of the gas discharge ports (8) are opened and the discharge ports (8) are opened.
A gas guide cylinder (9) hanging down into the separator (4) ... In this example, the guide cylinders (9) are suspended to the position of the lower side of the exhaust gas introduction port (5 ').

The gas discharge pipe (10) is open at one end,
A pipe whose other end is closed is inserted in the longitudinal direction of the cover (1), and its open end (10 ') is used as the open end (2') of the exhaust gas guide pipe (2) of the cover (1). It is projected to the other side.

The solid stock case (7) is a flat dish having the same length as the cover (1) having a curved bottom plate.
The one side end is openably and closably connected to the cover (1) by a plurality of hinges (11), and the other side end is detachably locked to the cover (1) by a stopper (12). As a result, the flat plate surface is made to face the solid material discharge port (6) of the separator (4), and the vent holes () that communicate with the outside air are formed in the front and rear end plates of the stock case (7) thus mounted. .., (13) .. are provided, and filters (14), (14) that do not allow solid matter such as soot to pass through are attached to the inside surface of the case of each ventilation hole.

Between the cover (1) and the guide pipe (2), the separator (4) ..., the gas discharge pipe (10), etc., there is a heat insulating material (1) such as glass wool, rock wool or ceramic powder.
5) are filled respectively.

The operation of the above example will be described below. The tip of the existing exhaust pipe of the automobile engine is partly cut off, and the open end (2 ') of the exhaust gas guide pipe (2) in the solid matter separation device of the above example is connected to this. Exhaust gas discharged from the engine at a considerable pressure is injected into the exhaust gas guide pipe (2) through the exhaust pipe, and then passes through the exhaust gas introduction passages (5) ... to reach the large size of each conical separator (4). The tangential direction flows into the radial portion, so that the exhaust gas is conical along the conical inner peripheral surface of each separator (4), as shown by the phantom line in the separator at the right end of FIG. It turns into a spiral airflow and rotates down.During that time, the exhaust gas separates the solid matter such as soot from the gas body by the centrifugal force due to the rotation, collects it on the conical inner peripheral surface and drops it. Only the body falls, and this gas body is at the bottom of the separator (4) ... A small part of it in the solid stock case (7) together with the falling solid from the solid discharge port (6). Into the vent (1) through the filters (14), (14). ), (13)
Is discharged from the air into the atmosphere, and most of the gas body rises in the central portion of the conical spiral airflow, and each gas guide cylinder (9) ...
Is discharged into the gas discharge pipe (10) through the discharge pipe (10) and discharged into the atmosphere from the opening end (10 ′). The gas body that has entered the stock case (7) passes through the filters (14) and (14) while leaving the solid matter in the case (7), and then enters the atmosphere from the vents (13) and (13). Is released.

When a large amount of solid matter has accumulated in the stock case (7), the stopper (12) is removed and the stock case (7) is hinged (11) as shown by phantom lines in FIG.
Approximately, swing open to remove the solid matter inside, and then close the original state.

As another example, the above stock case (7)
A filter bag made of filter paper is removably loaded inside, and the solid matter discharged from the discharge port (6) is trapped in the filter bag, and if a large amount is accumulated, remove it together with the filter bag from the stock case (7). It can also be discarded.

[0015]

According to the engine exhaust gas solid matter separating apparatus of the present invention, the apparatus is relatively small and can be used by being connected to an engine exhaust pipe such as an automatic system, and moreover, it is discharged from the engine. Since the conical separator is used to perform the separation using the exhaust gas pressure, the power is not required at all, which is not only economically advantageous, but also the separated solid matter accumulates in the stock case, which is sometimes opened. It can be removed by simply removing it, and there is an advantage that the work is simple and easy.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

[Explanation of symbols]

 2 Exhaust gas guide pipe 4 Conical separator 5 Exhaust gas introduction path 6 Solids discharge port 8 Gas discharge port 7 Solids stock case 14 Filter

Claims (1)

[Claims] 1. An exhaust gas guide tube for guiding pressure exhaust gas from an engine, and an inverted conical vessel, directed tangentially from the exhaust gas guide tube to the inner peripheral surface of the large diameter portion of the upper end portion. A conical separator having an exhaust gas introduction passage opened at the top of the lower end of the vessel and a gas outlet opening to the upper end surface of the vessel at the top of the vessel, and the solid matter outlet. And an openable solid stock case that is in communication with the above separator and is open to the outside air through a filter.