JPH025847Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a dust removal device for hot water or water such as a bathtub, a swimming pool, a river, a lake, a water tank, etc.

When this type of dust removal device is used in a circulation filtration device for a bathtub, it is incorporated into a system as shown in FIG.

Reference numeral 1 designates a bathtub, and by driving a motor pump 5, warm water from the bathtub 1 is sucked into a dust removal device 3 through a pipe 2, where coarse garbage is removed and discharged into a discharge pipe 4 and a pipe. The water is discharged to a filtration tower 7 through a pipe 6, filtered by the filtration tower 7, and then refluxed to the bathtub 1 through a pipe 8.

A conventional dust removal device 3 of this type is constructed as shown in FIG.

Reference numeral 31 denotes a closed type, for example, a cylindrical container, and inside the container 31, a net-like basket 11 made of a predetermined mesh having an open top and having a cylindrical shape, for example, is installed.
01.

The hot water in the bathtub 1 is sucked into the dust removal device 3 from the inlet 9 of the dust removal device 3 through the pipe 2, coarse garbage is removed in the mesh basket 11, and then to the filtration tower 7 through the discharge pipe 4 and the pipe 6. It is discharged.

In the case of swimming pools, circulation filtration is carried out using the same configuration as described above, and in the case of firefighting systems, sprinkler systems, etc. that use water from rivers, lakes, reservoirs, etc., debris from the water is removed by dust removal equipment. Thereafter, it is directly discharged from the pipe 6 to those devices without passing through the filtration tower 7.

However, such conventional dust removal devices have the following problems.

The hot water or water flowing in from the inlet 9 is configured to be sucked into the discharge pipe 4 by a motor pump 5 provided in front of the dust removal device 3.
In this case, it is preferable to frequently take out the garbage accumulated in the mesh basket 11 from the container 31 before it becomes a large amount (if it becomes a large amount, the removal work becomes extensive), so the container 31 is relatively small. During circulation or suction of hot water or water, a short-circuit flow path is formed in the dust removal device 3 that connects directly from the inlet 9 to the discharge pipe 4 as shown by the arrow. The coarse garbage 13 concentrates on the net-like surface of the mesh basket 11 facing the pipe 4, clogging the mesh, and as the amount of accumulated garbage 13 increases, the suction force of the motor pump 5 and the resistance of the coarse rubber 13 decrease. Depending on the
The mesh basket 11 floats up from 01 and tilts toward the discharge pipe 4, and eventually the discharge pipe 4 becomes almost completely blocked, making circulation or suction impossible, and the motor pump 5 breaks down. leading to.

To prevent this, conventionally, the mesh basket 11 is frequently taken out from the container 31 to remove and clean the garbage 13, but the operation must be stopped each time, which is extremely cumbersome and inefficient. It was hot.

Such a problem occurs when the drain pipe 4 is installed at any position in the container 31 that is lower than the height of the mesh basket 11.

The present invention has been made in order to solve the above-mentioned problems that exist in conventional dust removal devices for hot water or water such as bathtubs, pools, rivers, lakes, reservoirs, etc.

The present invention will be explained according to the embodiment shown in FIGS. 3a to 4.

In FIGS. 3a to 4, the same symbols as those shown in FIGS. 1 and 2 indicate the same components.

In the present invention, as shown in FIG. 3a, a discharge pipe 4' is extended below the mesh basket 11, and the distal end of the discharge pipe 4' located inside the container 31 is made of, for example, an elbow pipe of different diameters. Connect the suction pipe 14.

In this case, the opening surface of the opening 15 of the suction pipe 14 faces parallel to the center of the inner bottom surface of the container 31, and the inner diameter of the opening 15 is the same as that of the pipe 2 and the discharge pipe 4' (these two pipes are smooth). For proper circulation or discharge, the inner diameter is usually set to be the same as described below. In this case, the discharge pipe 4' may be installed by penetrating the side wall of the container 31 located below the mesh basket 11, as shown in FIG. In short, the suction pipe 14 having the opening 15 with an inner diameter larger than the inner diameter of the pipe 2 and the discharge pipe 4' or 4'' is located below the mesh basket 11,
The object of the present invention can be achieved as long as the opening surface of the opening 15 is parallel to and opposed to the center of the inner bottom surface of the container 31.

In such a configuration, the inlet 9 connected to the pipe 2
The hot water or water flows into the mesh basket 11 in the container 31 of the dust removal device 3 by the suction force of the motor pump 5,
Via the opening 15 of the suction pipe 14, it is sucked into the discharge pipe 4' or 4''.

The main features of the present invention are as follows.

1. Place the suction pipe 14, which has an inner diameter larger than the inner diameter of the pipe 2 and the discharge pipe 4' or 4'', under the mesh basket 11 so that the opening surface of the opening 15 faces parallel to the center of the inner bottom surface of the container 31. As shown in FIG. 4, hot water or water flowing in from the pipe 2 is uniformly sucked into the opening 15 of the suction pipe 14 from all angles of 360° around the entire circumference of the container 31.
Therefore, centering on the axial center C of the container 31
As a result of the uniform upward and downward convection over 360 degrees, all of the garbage 13 rises along with the uniform upward flow over its entire circumference. According to the experimental results of the present inventor, it has been confirmed that the coarse dirt 13 floats in a circular shape in a concentrated manner at the center of the liquid surface of the dust removal device 3.

2. On the other hand, this type of circulation and discharge system is configured to circulate or discharge hot water or water by suction and discharge driven by one motor pump 5, so the flow rate is constant throughout the entire system. Regarding the dust removal device 3, the inlet 9, the discharge pipe 4,
The inner diameters of 4' and 4'' are set to be the same diameter.

In the present invention, the inner diameter of the opening 15 of the suction pipe 14 is made larger than the inner diameter of the pipe 2, the discharge pipe 4' or 4'', so that the flow rate of hot water or water passing through the opening 15 of the suction pipe 14 is pipe 2, discharge pipe 4',
Or it will be slower than that when passing through 4''.

3 With the above structure, a short-circuit flow path from the inlet 9 to the discharge pipe 4' or 4'' is not constructed due to the effect of 1 above, and the flow inside the container 31 is prevented by 2 above. In addition to being sufficiently filled with hot water or water, the hot water or water flowing in from the inlet 9 pushes down the hot water or water already in the container 31 and moves it toward the axial center C of the container 31.
After sufficient uniform floating and descending convection over 360° centered on the opening 1 of the suction pipe 14
Since the dust is sent out sequentially from step 5 to step 5, defects that occur in conventional dust removal devices do not occur.

According to the present invention, the opening surface of the suction pipe 14 connected to the discharge pipe 4' or 4'' is connected to the container 31.
The suction pipe 14 is disposed below the mesh basket 11 so as to be parallel to and opposite to the center of the inner bottom surface of the suction pipe 14.
The inner diameter of the container 31 is set to be larger than the inner diameter of the inlet 9 and the discharge pipes 4' and 4''.
The hot water or water sucked into the container 31 remains in the container 31 for a sufficient residence time, thereby preventing the formation of a short-circuit flow path between the inlet 9 and the discharge pipe 4' or 4''. The convection of floating and descending around the axial center of the liquid is uniformly and sufficiently performed over the entire circumference, and the coarse dirt 13 can be floated in a circular shape in a concentrated manner at the center of the liquid surface.

According to the experimental results of the present inventor, there was no phenomenon in which the coarse garbage 13 moved in the direction of the mesh during circulation or discharge. Therefore, if the coarse debris 13 concentrated at the center of the liquid surface is removed as necessary, hot water or water can be circulated or discharged in a constant state without any resistance for a long period of time, and Conventionally, the mesh surface of the mesh basket 11 is clogged with coarse garbage 13.
Since this becomes resistance, the capacity of the motor pump 5 was set large in consideration of this, but the above-mentioned effect makes it possible to circulate or discharge with a small capacity motor pump, and to prevent failure of the motor pump. In addition to being able to prevent dust removal, its practical effects are remarkable, such as extending the cleaning cycle of the dust removal device and simplifying the overall work.

In addition, in the above embodiment, a case was described in which hot water in a bathtub is circulated and filtered, but in the case of a swimming pool, the hot water is used as pool water, and in the case of a firefighting system, a sprinkler system, etc., it is used in a river, lake, reservoir, etc. Just replace it with water.

Further, in the above embodiment, an example in which a different diameter elbow pipe was used as the suction pipe 14 was described, but any shape may be used as long as the relationship with the discharge pipe 4 can be set as described above. Good too.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of a circulating filtration system for bathtub water, and FIG. 2 is a vertical sectional view showing an example of a conventional dust collector used in the circulating filtration system illustrated in FIG. Figure 3a is a longitudinal sectional view showing an embodiment of the present invention, Figure 3b is a sectional view taken along line A-A' in Figure 3a, and Figure 3c is a longitudinal sectional view showing another embodiment of the invention. , FIG. 4 is a longitudinal sectional view for explaining the effects of the present invention. 4, 4', 4''...Discharge pipe, 9...Upper injection port,
11...Mesh basket with open top, 14...Suction pipe, 15
... Suction pipe opening, 31 ... Closed container.

Claims (1)

[Scope of utility model registration request] A closed container is provided with a net-like basket with an open top surface, hot water or water containing pollutants is introduced from the upper inlet of the container, sucked out from the lower discharge pipe, and dust is removed by the mesh-like basket. In such a case, the opening surface (suction port) of the discharge pipe is located inside the container at a position below the mesh basket, and the opening surface (suction port) of the discharge pipe is parallel to the inner bottom surface of the container and at the center of the inner bottom surface of the container. A dust removal device comprising a suction pipe having a circular suction port facing the injection pipe and the discharge pipe, the inner diameter of which is larger than the inner diameter of the injection pipe and the discharge pipe.