JPS621371Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an exhaust gas purification device for purifying exhaust gas emitted from an internal combustion engine of an automobile with clean water.

[Conventional technology]

Exhaust gas discharged from internal combustion engines contains toxic substances such as carbon monoxide, and in the case of diesel engines, black smoke is also generated, which must be purified.

Two methods are known for purifying exhaust gas: a method using a catalyst and a method using clean water.

The former catalytic method not only has a complicated structure, but also requires a catalyst, resulting in high processing costs.
Moreover, since it provides resistance to the flow of exhaust gas, there is a problem in that it places a burden on the engine.

On the other hand, the latter method using clean water has been proposed, for example, in Japanese Patent Laid-Open No. 53-37226, and has the advantage of being easy and inexpensive to implement.

By the way, the purification device using the above-mentioned clean water,
A catalyst liquid transfer body is provided in the exhaust passage of a reduction chamber consisting of an exhaust passage and a catalyst tank, and the catalyst liquid and the exhaust gas are brought into contact by moving the exhaust gas and the catalyst liquid in the same direction.

[Problem that the invention attempts to solve]

However, in a structure in which the exhaust gas and the catalyst liquid move in the same direction while the exhaust gas passes through the catalyst liquid, the exhaust gas and the catalyst liquid move in the same direction and have no chance of coming into contact with each other. There is a problem that the purification efficiency is poor.

Furthermore, in order to complete the purification, it is necessary to connect multiple reduction chambers in series, which poses a problem of increasing the size of the entire apparatus.

This idea was made to solve the problems of the method using clean water as mentioned above.
The purpose is to provide an exhaust gas purification device that is small and has high purification efficiency.

[Means for solving problems]

In order to solve the above problems, this idea provides an exhaust gas inlet at the bottom of the container that stores clean water inside, and an outlet for purified exhaust gas at the top.
In the container, there is a perforated plate stretched so as to divide it into upper and lower chambers that communicate between the clean water surface and the outlet, and a lower part of the perforated plate is divided into two chambers with the lower end immersed in the clean water. A partition plate is provided to connect the chambers at the bottom of the container, and a water flow generator is installed at the bottom of the container near the exhaust gas inlet to rotate the clean water, raise it, and circulate it through each chamber. It is something that

[Effect]

Fill the container with enough clean water to submerge the bottom of the partition plate, start the water generator, and let the exhaust gas flow into the container from the bottom.The exhaust gas and clean water will flow upwards and come into contact. and separate by colliding with a perforated plate.

The clean water falls into adjacent chambers in the container and circulates, while the exhaust gas that has passed through the perforated plate exits from the upper outlet.

As the clean water and exhaust gas rise, they collide and pass through the perforated plate, so the clean water is finely dispersed, the efficiency of contact with the exhaust gas is improved, and the exhaust gas can be efficiently purified.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in the figure, an exhaust gas inlet 2 is provided at the bottom of a container 1 that stores clean water A in the inner lower half, and an exhaust gas inlet pipe 4 is connected to the outlet of a muffler 3 connected to the engine. connected via.

An exhaust gas discharge pipe 6 is connected to a purified exhaust gas discharge port 5 provided at the upper part of the container 1, and a perforated plate 7 is horizontally stretched between the surface of the clean water A and the discharge port 5 inside the container 1. A partition plate 8 is provided at the bottom of the perforated plate 7 so that its lower end is immersed in the clean water A, which separates the upper chamber 9 and the lower chambers 10 and 11 on both sides.
The lower parts of chambers 10 and 11 on both sides are connected so that clean water A can freely pass through.

At the bottom of the container 1, a water flow generator 12 is installed at the bottom of the chamber 10 facing the exhaust gas inlet 2 on the side, giving rotation to the clean water A in the chamber 10 and directing it toward the upper chamber 9. It is designed to rise.

The water flow generator 12 is composed of a rotary blade 13 and a motor 14 that drives the rotary blade 13, and the rotated clean water A rises in the chamber 10, passes through the perforated plate 7, and enters the upper chamber 9. Steam and water separation is performed in the chamber 11, and the separated water is circulated back to the lower chamber 11.

Since the exhaust gas flowing into the chamber 10 in the container 1 through the inlet 2 follows the flow direction of the clean water, there is no resistance to the inflow of the exhaust gas, and the exhaust gas flows smoothly into the container 1. , without putting any strain on the engine.

A clean water storage tank 16 is connected to the lower part of the container 1 via a connecting pipe 15, so that clean water can be replenished into the container 1 from the water storage tank 16 and the clean water A in the container 1 can be cooled. It's getting old.

By providing a drain outlet at an appropriate position such as at the bottom of the water storage tank 16 or in the middle of the pipe 15, and by forming the water storage tank 16 and the container 1 from transparent synthetic resin, it is possible to easily know the amount of clean water and the degree of contamination. It is convenient because it allows you to

The exhaust gas purification device of this invention has the above-mentioned configuration, and for example, when driving a truck, the motor 14 is started and the clean water A in the container 1 is circulated by the rotary blades 13.

In this state, the exhaust gas that has passed through the muffler 3 flows into the chamber 10 and rises toward the upper chamber 9 together with the rising clean water A. The exhaust gas comes into contact with the rising clean water as it rotates, and when it passes through the perforated plate 7, the clean water A is finely dispersed, improving the efficiency of contact with the exhaust gas and removing harmful substances contained in the exhaust gas. The substances are captured with clean water and air-water separation takes place in the upper chamber 9, so that the purified exhaust gas is discharged from the outlet 5 through the pipe 6 into the atmosphere.

The clean water that has trapped harmful substances returns to the lower chamber 11 and is recycled and reused. Further, contaminated water can be taken out by opening and closing a valve, etc., and fresh clean water can be replenished from the water storage tank 16.

〔effect〕

As described above, according to this invention, clean water is stored in a container into which exhaust gas flows from the bottom, the clean water is circulated by a water generator and brought into contact with the exhaust gas, and then air and water are separated by a perforated plate. As a result, it is now possible to purify automobile exhaust gas using clean water, and since the exhaust gas flows in the direction of the circulating flow of the clean water, it is possible to release purified exhaust gas. It does not create any resistance and does not put a strain on the engine.

In addition, since the exhaust gas is brought into contact with the circulating flow of clean water and the clean water is finely separated using a perforated plate for air-water separation, the opportunities for contact between the clean water and the exhaust gas are extremely large. contact can be carried out effectively, purification performance can be significantly improved, and the entire device can be made more compact.

Furthermore, since the sound of the exhaust gas can be blocked by the water flow, an excellent muffling effect on exhaust noise can be achieved.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional view of the exhaust gas purification device according to this invention. 1 is a container, 2 is an exhaust gas inlet, 5 is an exhaust gas outlet, 7 is a perforated plate, 8 is a partition plate, 9,1
0 and 11 are chambers, and 12 is a water flow generator.

Claims (1)

[Scope of utility model registration request] A container for storing clean water inside is provided with an exhaust gas inlet at the bottom and a purified exhaust gas outlet at the top, and the container is divided into upper and lower chambers communicating between the surface of the clean water and the outlet. A perforated plate is installed, and a partition plate is provided that divides the lower part of the perforated plate into two chambers with the lower end immersed in clean water and connects these two chambers at the lower part of the container, and exhaust gas is removed from the lower part of the container. An automobile exhaust gas purification device that is equipped with a water flow generator near the inlet that rotates clean water, raises it, and circulates it through each room.