JPH0463193A - Device for prolonging service life of active carbon in water purifier - Google Patents

Abstract

PURPOSE:To prevent the blocking of active carbon in a water purifier and to prolong the service life of the active carbon by changing over the direction of flow of water passing through a layer of the active carbon every time the layer is used. CONSTITUTION:Tap water introduced from a tap water introducing path 2 enters a manually operated three way valve as a device 3 for changing over a passage. The tap water in the device 3 enters an upper path 4 leading to a layer 5 of active carbon and the water purified by passing through the layer 5 is fed into the device 3 from the bottom through a sending pipe 8. The purified water in the device 3 is sent to the outside through a left purified water passage 6. Water introduced into the device 3 from the right path 2 enters the pipe 8 from the lower end and is fed into the layer 5 from the top, and the water purified by passing through the layer 5 enters the device 3 from the top and is sent to the outside through the passage 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for extending the life of activated carbon used in water purifiers.

[Conventional technology]

Activated carbon has traditionally been used in water purifiers, but
This is because activated carbon removes all harmful substances and substances that have an unpleasant odor.

However, in addition to the above-mentioned substances, activated carbon also removes harmless substances such as suspended matter, and in reality, these harmless substances cause clogging of the activated carbon and significantly shorten the life of the activated carbon.

[Problem to be solved by the invention]

The present invention aims to extend the life of activated carbon by switching the flow direction each time it is used, in view of the drawback that activated carbon causes clogging as it is used, in a water purifier having activated carbon.

[Means to solve problems]

The gist of the present invention is a device for extending the life of activated carbon in a water purifier, characterized in that the direction of flow through the activated carbon layer is reversed for each use.

[For production]

According to the activated carbon life extension device in a water purifier of the present invention,
By switching the flow path in the opposite direction, some of the substances with large particle sizes such as harmless suspended matter adsorbed on the activated carbon are separated from the activated carbon again and exit the activated carbon layer. That is, by reversing the flow path, the effect of cleaning the activated carbon is produced, and clogging can be prevented.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.

FIG. 1 shows an embodiment in which on/off and flow direction switching is performed manually.

The tap water introduced from the tap water supply path 2 enters a flow path switching device 3 consisting of a so-called manual three-way valve.As shown in FIGS. 2 to 4, this device 3 has holes for water to pass through every 90" are open, and in Figure 2, 0'', 90'' and 18''
The holes at positions 0' and 270" are connected. In this state, the tap water that entered from the tap water introduction route 2 on the right flows into the activated carbon layer introduction route 4 above, and the purified water that has passed through the activated carbon layer 5. is supplied to the flow path switching device 3 from below through a delivery pipe 8.

Purified water enters from below through the delivery pipe 8 and is sent out through the left purification channel 6. Next, FIG. 3 shows a state in which the valve has rotated 45 degrees to the right from the state shown in FIG. 2, and the flow path is turned off.

In FIG. 4, the valve is further rotated 45 degrees to the right from FIG. 3, and the flow path is reversed.

In this case, the water introduced into the flow path switching device 3 from the right tap water supply path 2 enters the water pipe 8 from below and is supplied to the activated carbon layer 5 from above, and the purified water that has passed through the activated carbon layer 5 flows from above. It enters the path switching device 3 and is sent out through the left purification channel 6.

By manually rotating the switching device 3 in the same direction every 45 degrees, it is possible to alternately turn on and off the flowing water and switch the flow direction through the activated carbon layer. This is because the switching device W3 rotates only in the same direction.

Note that the reversing mechanism is not limited to the above configuration.

FIG. 5 is a partially sectional perspective view of a device that electrically switches running water on and off. The difference from the above device is that the flow path switching device 3 is equipped with a step motor 7, and the switching conduit 9 is electrically rotated by 45'' in the same direction, but other than that, this device is the same as the above device.

〔Effect of the invention〕

As described above, according to the device for extending the life of activated carbon in a water purifier of the present invention, by switching the flow direction of the activated carbon layer each time it is used, it is effective to prevent clogging of the activated carbon and extend the life of the activated carbon. .

[Brief explanation of drawings]

FIG. 1 is a partially cross-sectional perspective view showing one embodiment of the present invention, and FIG.
FIGS. 2 to 4 each show a cross-sectional view of the flow path switching device, and FIGS. 2 and 4 show a state in which the flow paths are reversed, and FIG. 3 shows a state in which water does not flow. FIG. 5 is a perspective view showing another embodiment of the present invention. L... Main body, 2... Tap water introduction route, 3... Channel switching device, 4... Activated carbon layer introduction route, 5... Activated carbon layer, 6... Purification channel. Rod 1 diagram

Claims (1)

[Claims] 1) A device for extending the life of activated carbon in a water purifier, characterized in that the direction of flow through the activated carbon layer is reversed every time it is used.