JP3136066U - Water purifier - Google Patents

Abstract

A water purifier including a membrane separation device that can be used even during a power failure.
A water purifier including a membrane separation device for filtering pressurized water supplied from a pump device, and when an external power supply is supplied, the internal water supply pump device is driven from a connector. The supplied tap water is pressurized and filtered by a membrane separator to obtain purified water. When external power is not supplied or external power is not supplied, the external pipe 12 of the manual pump 11 is connected to the connector 3. The water to be purified was pressurized by driving the manual pump 11, and the pressurized water was passed through the pump device and filtered by a membrane separator to obtain purified water.
[Selection] Figure 2

Description

  The present invention relates to a water purifier that purifies purified water by filtering purified water such as tap water or contaminated water.

2. Description of the Related Art Conventionally, a water purifier has been provided that filters dirt in water by a membrane separation device having a filtration membrane such as a reverse osmosis membrane (RO membrane). A water purifier using a membrane separation device has a high purification capacity, and even purified water that is not clean water can be purified into purified water. An example of such a water purifier is shown as Patent Document 1.
JP 2001-246367 A

However, since the water purifier provided with the water purifier listed in Patent Document 1 or other membrane separation device using a reverse osmosis membrane pressurizes water with an electric pump and permeates the membrane separation device, power failure Sometimes it becomes unusable.
The present invention has been made by paying attention to such problems existing in the prior art. The main purpose is to provide a water purifier equipped with a membrane separation device that can be used even during a power failure.

As a first means for achieving the above object, a connector for connecting an external pipe for supplying the water to be purified, and an external for pressurizing the water to be purified introduced from the connector to flow down as pressurized water downstream. A water purifier comprising a water supply pump device provided with a drive source driven by a power source, and one or more membrane separation devices that are disposed downstream of the pump device and filter pressurized water supplied from the pump device. When the external power supply is supplied, the water supply pump device is driven to pressurize the water to be purified supplied from the connector and filtered by the membrane separation device to obtain purified water. When not supplied or external power is not supplied, the water to be purified is pressurized by connecting an external pipe of a manual pump to the connector and driving the manual pump, The pump device is plain as its gist in that to obtain a purified water by filtration by the membrane separation device.
In the second means, in addition to the first means, the drive source of the water supply pump device is driven based on a detection signal of a detection means for detecting the pressure of water flowing in from the connector. The gist.

  In the devices of the above claims, it is possible to obtain purified water filtered by the membrane separator even in a place where there is no power source or in a water purifier provided with the membrane separator.

Hereinafter, an embodiment embodying a water purifier in the present invention will be described with reference to the drawings.
As shown in FIG.1 and FIG.2, the water purifier 1 of a present Example is provided with the housing | casing 2 made from plastics, and the connector 3 for water supply, the connector 4 for drainage, and the connector 5 for water purification are each exposed in the back side. A purified water nozzle unit 7 is connected to the purified water connector 5 via a hose 6. As shown in FIG. 1, a flexible hose 9 serving as an external pipe extending from a water tap 8 is connected to the water supply connector 3 in normal home use. A drainage hose 10 is connected to the drainage connector 4.
As shown in FIG. 2, when power cannot be supplied due to a power failure or outdoors, a water supply hose 12 as an external pipe of the manual pump 11 is connected to the water supply connector 3 instead of the flexible hose 9. Yes.

  Next, the outline of the internal structure of the water purifier 1 will be described. As shown in FIG. 3, a group of members for filtration are accommodated in the housing 2. A pressure sensor 16 as a detecting means is connected to the internal pipe 15 with the water supply connector 3 as the most upstream position. The pressure sensor 16 detects the pressure of water supplied into the internal pipe 15 and outputs the detected state as a signal. A pump device 17 for detecting water supply is connected to a downstream position of the pressure sensor 16. The pump device 17 has a built-in motor device that is driven by receiving power from a household power source (not shown), and is driven on condition that an output signal from the pressure sensor 16 is input in the switch-on state. ing. In the present embodiment, the pump device 17 is a turbo pump having a rotor, and pressurizes water that is pressurized to some extent (like tap water sent from the water supply) in the internal pipe 15 and sends it to the downstream. Play a role. An activated carbon filter device 18 is connected to a downstream position of the pump device 17. The activated carbon filter device 18 mainly deodorizes by adsorbing odor components in water.

Two reverse osmosis membrane filter devices 19 and 20 as membrane separation devices are connected in series at a downstream position of the activated carbon filter device 18. The reverse osmosis membrane filter devices 19 and 20 are membrane separation devices using a reverse osmosis membrane (RO membrane) as a separation membrane, and have the ability to permeate water containing only a substance of approximately 2 nm or less. Since the pressure higher than the normal osmotic pressure is necessary for the separation of impurities, the pressure is created by the pump device 17. The purified water filtered by the first reverse osmosis membrane filter device 19 is discharged from the purified water discharge port 21 to the internal pipe 15 (purified water pipe 15a) and directly led to the purified water connector 5. On the other hand, the drainage discharge port 22 is led to the water supply port 23 of the second reverse osmosis membrane filter device 20. In the second reverse osmosis membrane filter device 20, the amount of waste water that could not be filtered by the first reverse osmosis membrane filter device 19 is filtered again and similarly discharged from the purified water discharge port 21 to the internal pipe 15 (purified water pipe 15a). It is led to the connector 5 for water purification.
The drain discharge port 22 of the second reverse osmosis membrane filter device 20 is connected to the internal pipe 15 (drain pipe 15b). A water amount adjusting valve 24 and a cleaning valve 25 are connected in parallel downstream of the drainage discharge port 22. The pressure of the internal pipe 15 is adjusted by the water amount adjusting valve 24, and when the internal pipe 15 needs to be cleaned (cleaned), the cleaning valve 25 that is normally closed is opened. The drainage pipe 15b is connected to the drainage connector 4, and the water that has not been finally purified is discharged from the drainage connector 4 to the outside.

In such a configuration, in normal use, that is, in a state where power is supplied, the pump device 17 is driven by the supply of tap water (the pressure sensor 16 sends a detection signal to the pump device 17 side). Pressurized water is filtered by the activated carbon filter device 18 and the reverse osmosis membrane filter devices 19 and 20 and discharged from the water purification nozzle unit 7.
On the other hand, since the pump device 17 cannot be driven when power is not supplied, the water supply hose 12 as an external pipe of the manual pump 11 is connected to the water supply connector 3 as shown in FIG. The purified water is sent into the water purifier 1. The pressurized water to be purified passes through the pump device 17 and is filtered by the activated carbon filter device 18 and the reverse osmosis membrane filter devices 19 and 20 in the same manner as described above, and is discharged from the water purification nozzle unit 7. This makes it possible to obtain filtered purified water even when there is a power failure or where there is no power supply.

It should be noted that the present invention can be modified and embodied as follows.
The number of reverse osmosis membrane filter devices 19 and 20 (membrane separation devices) may be one, or three or more.
-Another filter, for example, a filter for adding a mineral component to the purified water, may be connected to the downstream position of the reverse osmosis membrane filter devices 19 and 20 in the purified water path.
In the water purifier 1, not only the purified water accommodated in the manual pump 11 but also the manual water pump 11 may be used to supply water to be purified.
-Other membrane separation devices can be used.
In addition, it is free to implement in a mode that does not depart from the spirit of the present invention.

Schematic of the state which is supplying tap water to the water purifier of a present Example. Schematic of the state which is supplying water from the manual pump to the water purifier of a present Example. Schematic of the internal structure of a water purifier.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Water purifier, 3 ... Water supply connector, 11 ... Manual pump, 17 ... Water supply pump apparatus, 19, 20 ... Reverse osmosis membrane filter apparatus as a membrane separation apparatus.

Claims (2)

A connector for connecting an external pipe for supplying purified water;
A water supply pump device provided with a drive source driven by an external power source that pressurizes the water to be purified introduced from the connector and flows it downstream as pressurized water;
A water purifier that is disposed downstream of the pump device and includes one or more membrane separation devices that filter pressurized water supplied from the pump device;
When the external power supply is supplied, the water supply pump device is driven to pressurize the water to be purified supplied from the connector and filtered by the membrane separation device, and the external power is not supplied or When external power is not supplied, the water to be purified is pressurized by connecting an external pipe of a manual pump to the connector and driving the manual pump, and the pressurized water is passed through the pump device and the membrane separation device. A water purifier characterized by being filtered to obtain purified water.   2. The water purifier according to claim 1, wherein the drive source of the water supply pump device is driven based on a detection signal of a detection unit that detects a pressure of water flowing in from the connector.

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