JP2926292B2 - Rainwater treatment unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention stores rainwater on a roof of a building or the like in a rainwater storage layer (not shown) at the time of rain or the like, and also includes sewage components (fine particles, fine particles, etc.) contained in the rainwater.
The present invention relates to a rainwater treatment unit that removes and treats SS, turbid components, etc., and obtains miscellaneous water, cooling water, sprinkling water, pond water, fire prevention water, water for emergency use, and the like.

[0002]

2. Description of the Related Art In recent years, urban-type disasters caused by rainwater in urban areas have become a problem, and installation of rainwater storage tanks, ponds, etc. for the purpose of suppressing runoff of rainwater has been instructed. Particularly, in a high-rise building in an urban area, a spring tank, a middle water tank, a rainwater storage tank, and the like are often installed in a double slab structure at the bottom of the building.

[0003]

The means and method for removing the dirt component of the rainwater stored as described above and effectively utilizing it when necessary have not been established, and this is the problem to be solved by the present invention. It is an issue to be tried.

[0004]

That is, the present invention provides a raw water circulation pump for sucking rainwater and feeding it to an automatic three-way valve;
An automatic three-way valve that operates to switch between a circulating water pipe and a processing pipe, a filter for removing SS components connected to the processing pipe, an activated carbon filter for removing chromaticity and odor connected to the filter, and a circulating water pipe Treatment to a component consisting of a hypo-injection device and a pH adjusting device, a raw water circulation pump, an automatic three-way valve, a filter for removing SS component, a hypo-injection device, and a pH adjusting device connected to the The present invention proposes a rainwater treatment unit comprising a water supply / discharge valve device and a meter, and a control panel for controlling the operation of each of these components.

[0005]

In the operation of the rainwater treatment unit having the above-described structure, the stored water in the rainwater storage tank is filtered and purified. Disinfection and pH adjustment to maintain sanitary water quality while circulating stored water in the rainwater storage tank are performed.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a rainwater treatment unit according to the present invention comprises a raw water circulation pump (self-priming type) 1, an automatic three-way valve 2,
Flow meter (integration) 3, constant flow valve 4, filter (cartridge type, for removing SS) 5, pressure gauge for filter 6, 7, treated water switching valve 8, 9, activated carbon filter (cartridge type, color Every time,
Odor removal) 10, Activated carbon filter pressure gauge 11, Activated carbon filter treated water valve 12, Hyposubinjector 13, pH adjuster 1
4 and a control panel 15, etc., and is an integrated rainwater treatment unit.

First, the operation of this unit for filtering and purifying the stored water is performed by controlling the liquid level conditions of the rainwater storage tank and the treated water tank, which are not shown in the drawing, by controlling the signals from the respective liquid level electrodes in the control panel 15. Judgment is made by the circuit, the raw water circulation pump 1 is operated under operable conditions, and the automatic three-way valve 2 is fully opened in the filtration direction. Immediately before the inside of the filter 5, the flow meter 3 is installed to indicate the amount of water to be treated and to perform integration so that the integrated flow rate can be confirmed.

The rainwater that has flowed into the filter 5 is subjected to a cartridge filter in the filter 5 to remove the SS content in the inflow water. The valve is fully opened, the switching valve 9 is fully closed, the filtered water is guided to the activated carbon filter 10, and the chromaticity and odor are adsorbed and removed by the activated carbon cartridge to obtain clear treated water. If the treated water of the filter 5 has no chromaticity or odor, the switching valve 8
Is fully closed, the switching valve 9 is fully opened, and the treated water flows into a treated water tank (not shown).

Next, using this unit, circulating stored water,
When maintaining sanitary water quality, it is performed as follows. That is, the circulating system incorporated in the control panel 15 of the rainwater treatment unit causes the automatic three-way valve 2 to fully open the circulating side and fully close the filtering direction, and operates the raw water circulation pump 1. Measure the residual salt and pH of the pumped stored water using a residual salt meter and pH meter attached to the circulation pipeline, and if the set value is not reached, hypothermic injection according to the signal from each instrumentation device. The device 13 and the pH adjusting device 14 are operated to inject each chemical. When each set value has been reached, only circulation is performed.

[0010]

According to the rainwater treatment unit of the present invention, which is constructed and operates as described above, the inflowing rainwater is quantitatively filtered to remove SS, chromaticity, and odor. No need to use a backwashing device and backwashing system to replace each cartridge and replace the cartridges with a built-in chemical injection device to maintain the sanitary water quality of stored rainwater. In addition, since the device is a compact unit type, the installation space is small and the effect of easy construction can be obtained.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of one embodiment of a rainwater treatment unit of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Raw water circulation pump 2 Automatic 3 way valve 5 Filtration machine 10 Activated carbon filtration machine 13 Hypo-subjector 14 pH adjuster 15 Control panel

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/28 C02F 1/28 D 1/50 510 1/50 510A 520 520A 531 531P 560 560Z 1/66 510 1/66 510A 540 540G // C02F 1/00 1/00 B E03B 3/02 E03B 3/02 Z (72) Inventor Masahiko Koyamada 918-4 Toto, Tama-ku, Kawasaki City, Kanagawa Prefecture (72) Inventor Masayuki Kitabayashi Kobiki, Hachioji-shi, Tokyo 469-4, Machi 2-402 Hachioji S-Ota (58) Field surveyed (Int. Cl. ⁶ , DB name) C02F 9/00 502-504 B01D 36/00 C02F 1/28 C02F 1/50 510-560 C02F 1/66 510-540 C02F 1/00 E03B 3/02

Claims (1)

(57) [Claims] 1. A raw water circulating pump for sucking rainwater and feeding it to an automatic three-way valve, the automatic three-way valve for switching between a circulating water pipe and a processing pipe, and an SS for removing the SS connected to the processing pipe. A filter, a chromaticity filter connected to the filter, an activated carbon filter for odor removal, a hypogas injection device and a pH adjuster connected to a circulating water pipe, the raw water circulation pump, an automatic three-way valve, a SS A valve device and a meter for supplying and discharging treated water and circulating water to and from a component including a filter for removing particulates, an activated carbon filter, a sub-injection device, and a pH adjusting device, and controlling the operation of these components. A rainwater treatment unit characterized by comprising a control panel.