JP3173039B2 - Filtration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtration device for supplying sanitary drinking water to general households and the like.

[0002]

2. Description of the Related Art In recent years, as a filtration device, a combination of a filter for filtering tap water or the like and a cooling tank has been provided on the market.

[0003] A conventional filtering device will be described below.
FIG. 3 is a configuration diagram of a conventional filtration device. 1 is a filtration unit for filtering raw water such as tap water, 2 is a cooling tank, 3 is a water supply pipe connecting the filtration unit 1 and the cooling tank 2, and 4 is a purified water supply for discharging purified water of the filtration unit 1 at a faucet or the like. A pipe 5 connects the cold water of the cooling tank 2 in the middle of the purified water supply pipe 4 and supplies a cold water supply pipe to a faucet or the like, and a pipe 6 is disposed on the water supply pipe 3 downstream of the branch of the purified water supply pipe 4. A water supply valve 7 is a purified water supply pipe arranged downstream of the branch of the water supply pipe 3 of the purified water supply pipe 4, and 8 is a water pipe connected to a faucet or the like.

[0004] The operation of the filtering device configured as described above will be described below. When cold water is not required in winter, for example, the water supply valve 6 is closed, and the purified water supply valve 7 is opened to supply uncooled purified water. In summer, the water supply valve 6 is opened and the purified water supply valve 7 is closed. Thus, cold water cooled in the cooling tank 2 was supplied.

[0005]

However, in the above-mentioned conventional configuration, when the cooling water is not used for a long time because the water temperature is low even at normal temperature in winter, only the purified water supply pipe is used. Water was not supplied to the cooling tank for a long time, and as a result, bacteria and the like multiplied in the cooling tank, which had a problem in hygiene. In addition, there has been a problem that a great deal of labor is required for maintenance management such as sterilization and cleaning of the cooling tank when starting to use the cooling tank.

The present invention solves the above-mentioned conventional problems. Even when the cooling tank is not used for a long time, the purified water is passed through the cooling tank without operating the cooling mechanism. It is an object of the present invention to provide a filtration device that prevents the propagation of bacteria and the like inside, and that is hygienic and easy to maintain.

[0007]

In order to achieve this object, a first aspect of the present invention provides a filtration device comprising: a filtration unit; a purified water supply pipe connecting the filtration unit to a water pipe; A water supply pipe connected to the cooling tank, a cold water supply pipe connecting the cooling tank and the water pipe, an electromagnetic water supply valve disposed on the water supply pipe, an electromagnetic water supply valve disposed on the purified water supply pipe, and the cooling The filter according to the second aspect of the present invention, comprising: a control unit that controls a cooling mechanism of a tank; and a purified water supply cock and a chilled water flow cock that open and close the electromagnetic water supply valve, the electromagnetic water purification supply valve through the control unit. The apparatus opens the electromagnetic purified water supply valve when the control unit of the first invention operates the purified water supply cock during operation of the cooling mechanism of the cooling tank, closes the electromagnetic water supply valve, and operates the electromagnetic purified water supply cock when operated the cold water flow cock. Control to close the valve and open the electromagnetic water valve, The solenoid purified water supply valve when operating the serial water treatment water cock during non-operation of the cooling tank cooling mechanism are closed,
It has a configuration for performing control to open the electromagnetic water supply valve.

[0008]

According to this configuration, even when the cooling function is not used for a long time, it is possible to prevent the propagation of bacteria and the like due to the accumulation of water in the cooling tank. Further, as a result, it is possible to always supply cold water immediately without requiring maintenance such as cleaning and disinfecting work in the cooling tank.

[0009]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a configuration diagram of a filtration device according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of a control unit thereof.

Reference numeral 1 denotes a filtration unit, 3 denotes a water supply pipe, 4 denotes a purified water supply pipe, and 5 denotes a cold water supply pipe. These are the same as in the conventional example, and are denoted by the same reference numerals and description thereof is omitted. 9 is a control unit, 1
Numerals 0 and 11 denote a purified water supply cock and a cold water flow cock of a control unit, respectively, a cooling tank 61 for maintaining an optimal cold water supply state by controlling a cooling mechanism and controlling a cooling temperature by a control unit 9;
Is an electromagnetic water supply valve for the water supply pipe 3 that opens and closes in response to a signal from the control unit 9 by the operation of the purified water supply cock 10 and the chilled water supply cock 11 and controls the flow of purified water to the cooling tank. An electromagnetic purified water supply valve for the purified water supply pipe 4 that is opened and closed by operation of the cold water flow cock 11 in response to a signal from the control unit 9 and controls the flow of water to the purified water flow pipe 8.

In FIG. 2, reference numeral 12 denotes a purified water supply cock 10.
And a cock detection unit 13 for detecting the open / closed state of the cold water flow cock 11, a switching valve driver 13 for opening and closing the electromagnetic water supply valve 71, and a switching valve driver 14 for opening and closing the electromagnetic water supply valve 61. Reference numeral 15 denotes a temperature detecting unit for detecting the temperature of the cooling bath 21, and 16 denotes a cooling bath driver for operating the cooling unit of the cooling bath 21. Reference numeral 17 controls the operation / non-operation of the cooling tank driver 16 according to the detection signal from the temperature detecting unit 15 when the cooling function of the cooling tank 21 is operated, and outputs an operation signal to disable the cooling function. Sometimes, the cooling tank driver 16 is set to a non-operating state, and a cooling tank operation determining unit for outputting a non-operating signal is provided. A switching valve control unit that controls the operation of the switching valve drivers 13 and 14 so that the valve 71 opens and closes.

The operation of the filtering device configured as described above will be described below. When operating the purified water supply cock 10 to use the normal purified water during the operation of the cooling function such as in summer, the controller 9 opens the electromagnetic purified water supply valve 71 and closes the electromagnetic water supply valve 61. Therefore, the purified water that has passed through the filtration unit 1 is supplied to the water pipe 8 via the purified water supply pipe 4 without passing through the cooling tank 21. When the cold water flow cock 11 is operated, the controller 9 opens the electromagnetic water supply valve 61 and closes the electromagnetic water purification supply valve 71. Therefore, the purified water from the filtration unit 1 is cooled in the cooling tank 21 and supplied as cold purified water from the water pipe 8.

Next, a case where the cooling function is not operated, such as in winter, will be described. In this case, when the purified water supply cock 10 is operated to use normal purified water, the control unit 9 sends a signal to the switching valve control unit 18 with a non-operation signal of the cock detection unit 12 and the cooling tank operation determination unit 17 to supply electromagnetic purified water. The valve 71 is closed, and the electromagnetic water supply valve 61 is opened. For this reason, the purified water that has passed through the filtration unit 1 is supplied from the water pipe 8 as normal purified water through the cooling tank 21 in which the cooling function is not operated.

[0015] By the switching operation of the valve so that the flow of the purified water, the purified water is constantly passed through the cooling tank.
Even when the cooling function is not used for a long time, the growth of bacteria in the cooling tank can be prevented. In addition to the above-described flow of purified water, when the cooling function is not used for a long time, it is possible to control not only to supply water through the cooling tank 21 but also to supply water through the water supply pipe 3 by switching the valve occasionally. Bacteria can be prevented from breeding in the stagnant water, and more sanitary water supply can be realized.

[0016]

As described above, according to the present invention, a solenoid valve is provided in a water supply pipe between a water purifier and a cooling tank and a purified water supply pipe through which purified water flows directly from the water purifier, and the control for controlling these is provided. By operating the cock of the section, water is always passed through the cooling tank, so that it is possible to prevent the growth of bacteria in the cooling tank even in winter etc. where a cooling mechanism is not required for a long time, and to remove bacteria. Since it is not necessary to clean the inside of the cooling tank, maintenance and management are extremely easy, and an excellent filtration device capable of supplying cold water whenever necessary can be realized.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a filtration device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a control unit according to an embodiment of the present invention.

FIG. 3 is a configuration diagram of a conventional filtration device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filtration part 2 Cooling tank 3 Water supply pipe 4 Clean water supply pipe 5 Cold water supply pipe 6 Water supply valve 7 Clean water supply valve 8 Water flow pipe 9 Control part 10 Clean water supply cock 11 Cold water flow cock 21 Cooling tank 61 Electromagnetic water supply valve 71 Electromagnetic water supply valve

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) C02F 1/28 B01D 35/00-35/04 F25D 11/00

Claims (1)

(57) [Claims] 1. A filtration section, a purified water supply pipe connecting the filtration section to a water pipe, a water pipe branched from the purified water supply pipe and connected to a cooling tank, and a cold water supply connected to the cooling tank and the water pipe. A pipe, an electromagnetic water supply valve disposed on the water supply pipe, an electromagnetic water purification supply valve disposed on the purified water supply pipe, a control unit for controlling a cooling mechanism of the cooling tank, and the electromagnetic water supply valve through the control unit ,
A water purification cock for opening and closing an electromagnetic water purification valve, and a cold water flow cock , wherein the control unit cools the cooling tank.
When operating the purified water supply cock during operation of the electromagnetic water supply
Open the valve, close the electromagnetic water supply valve, and operate the cold water flow cock
Close the electromagnetic water supply valve and open the electromagnetic water valve.
Control when the cooling mechanism of the cooling tank is not operating.
When operating the water cock, close the electromagnetic water supply valve and turn off the power.
A filter device characterized by performing control for opening a magnetic water supply valve.
Place.