JPH023769Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a strainer for an automatic water quality measuring instrument.

In order to prevent water pollution from wastewater at petrochemical factories, oil refineries, etc., automatic water quality measuring instruments are installed to measure and monitor pollution loads. By the way, when collecting samples to automatically measure the water quality of wastewater, it is necessary to remove impurities in the fluid (floating substances, settling substances, etc.) in order to prevent damage to equipment and facilitate measurement. A strainer is installed in the inlet piping of the meter.

There are various types of strainers known, such as Y-shape, T-shape, and U-shape, depending on their external shape, but conventional strainers have to be strained frequently because when foreign matter in the fluid accumulates in the strainer mesh, it becomes difficult for the fluid to flow. There was a problem in that it was necessary to take out the mesh and clean it, making the work cumbersome. Particularly when performing automatic measurements, it is strongly desired to keep the frequency of strainer cleaning and exchange as low as possible.

An object of the present invention is to provide a strainer for an automatic water quality measuring instrument that eliminates the above-mentioned problems and is less likely to clog and is easy to clean.

The present invention provides a fluid inlet port with a dispensing means at its end in the upper part, and a fluid outlet and a sample collection port inside the container body, which has a fluid outlet and a sample collection port in the bottom part. A partition plate is installed, and a wire mesh body is placed in the upper space of the section where the sample collection port is located among the sections formed by the partition plate, and placed on the container wall below the fluid introduction port and at a position lower than the wall surface. A strainer for an automatic water quality measuring device is characterized in that the strainer is installed obliquely between the strainer and the upper end of a certain partition plate, and that a blow pipe is connected within the compartment.

To explain the present invention with reference to illustrated embodiments, FIG. 1 is a front view of a strainer for an automatic water quality measuring instrument according to the present invention, and FIG. 2 is a plan view thereof. In the figure, 1 is the container body, 2 is a fluid inlet, 3 is a fluid outlet, 4 is a sample collection port, 5 is a partition plate, 6 is a wire mesh body, 7 is a distribution means, 8 is a blow pipe, 9 is a hole, A and B are sections.

As shown in the figure, the fluid inlet 2 is provided above one side wall surface of the container body 1, and the fluid outlet 3
A sample collection port 4 is provided at the bottom of the container body 1. Here, it is desirable that the end of the sample sampling port 4 be higher than the bottom of the container body 1, as shown in the figure. The fluid outlet 3 is provided inside the container body.
A partition plate 5 is installed to separate the sample collection port 4 from the sample collection port 4.
The partition plate 5 is formed by standing up from the bottom of the container body 1, and functions as a dam for fluid introduced into the container body. Therefore, the height of the partition plate 5 should be determined in consideration of factors such as the volume of the container body 1 and the amount of sample to be collected.

Next, the wire mesh body 6 is placed in the upper part of the section A where the sample collection port is present among the sections A and B formed by the partition plate 5 so that the contaminants present in the fluid do not transfer to the sampling sample. It is installed diagonally in the space. Specifically, it is stretched between the upper end of the partition plate 5 and the wall surface of the container body. In the illustrated example, it is a wall surface on which the fluid inlet 2 is provided, and is stretched between a position slightly below the fluid inlet 2 and the upper end of a partition plate 5 located at a position lower than the wall surface. However, since the fluid inlet 2 may be provided such that its end is located in the upper space of the section A, the fluid inlet 2
The wall surface provided is not limited to the illustrated example.

When the wire mesh body 6 is installed diagonally, the wire mesh body 6 is installed at an angle such that foreign substances remaining on the wire mesh body are easily washed away into the section B by the fluid poured from the fluid inlet 2. Normally, the angle of the upper end of the partition plate 5 from the horizontal plane is approximately 25 to 80 degrees, preferably 30 to 70 degrees. In addition, the mesh size of the wire mesh may be determined appropriately depending on the type of impurities in the fluid, but it is usually 20 to 20 mm.
Use one with 60 mesh. Only one wire mesh body may be used, but several wire mesh bodies may be stacked together if necessary. In this case, the mesh size of each wire mesh body can also be changed.

In the present invention, a distributing means 7 is provided at the end of the fluid inlet 2 located inside the container body, and a hole 9 is bored in the lower side of the distributing means. Therefore, when introducing a fluid into the strainer for an automatic water quality measuring instrument of the present invention, the fluid is allowed to flow down through the hole 9 described above. The fluid is poured onto the wire mesh body 6 via the distribution means 7, and if any contaminants are present, they remain on the wire mesh body and are removed from the fluid. The fluid that has passed through the wire mesh body is stored in section A, and after reaching the top of the partition plate, it overflows and enters section B.
It is discharged from the system through the fluid outlet. On the other hand, section A
A portion of the fluid stored in the tank is led to an automatic measuring device through a sampling port and used to measure water quality.

Further, in the present invention, a blow pipe 8 is connected within the section A.

It is preferable to install the strainer for an automatic water quality measuring device of the present invention in a place that is not exposed to sunlight as much as possible to prevent the growth of algae, etc. Since the strainer for an automatic water quality measuring instrument of the present invention has the above-described configuration, there is less clogging due to foreign matter in the fluid, and maintenance is easy. For example, a conventional Y-shaped strainer with a mesh size of 40 had to be cleaned every 8 hours, but with the strainer for automatic water quality measuring instruments of the present invention, cleaning only needs to be done once every 1 to 2 cycles. When cleaning the strainer, by opening the valve of the blow pipe 8 and blowing, algae, foreign matter, etc. adhering to the wire mesh body and the container body can be easily removed.

[Brief explanation of the drawing]

FIG. 1 is a front view of a strainer for an automatic water quality measuring instrument according to the present invention, and FIG. 2 is a plan view thereof. 1... Container body, 2... Fluid inlet, 3... Fluid outlet, 4... Sample collection port, 5... Partition plate, 6
...wire mesh body.

Claims (1)

[Scope of utility model registration request] A partition plate is provided inside the container body, which has a fluid inlet with a distributing means at the upper end thereof and a fluid outlet and a sample collection port at the bottom. At the same time, a wire mesh body is installed in the upper space of the section where the sample collection port is located among the sections formed by the partition plate, and the wall surface of the container below the fluid introduction port and the upper end of the partition plate located at a position lower than the wall surface. 1. A strainer for an automatic water quality measuring instrument, characterized in that the strainer is installed obliquely between the section and the section, and a blow pipe is connected within the section.