JPS60248284A - Apparatus for purifying and sterilizing water - Google Patents

Abstract

PURPOSE:To sterilize completely water with a simple structure by providing successively a chamber for charging water to be treated, a chamber packed with activated carbon, and a sterilization chamber having a sterilizing lamp, and supplying the water to be treated by considering the conditions of the charging chamber and the sterilization chamber. CONSTITUTION:A chamber 4 for charging water to be treated, a chamber 5 packed with activated carbon, and a chamber 8 for storing and sterilizing water to be treated are formed from the upper part, and an ultraviolet irradiation part 12 is arranged in and below the chamber 8 for storing and sterilizing water. Float switches 26 and 27 of an automatic water supply circuit are furnished in the charging chamber 4 and the sterilization chamber 8, and the supply of the water to be treated is stopped when the charging chamber 4 is filled with water. The supply of water to be treated is started when the water in the sterilization chamber 8 is run out. Consequently, since the water to be treated is purified without being retained in the activated carbon-packed chamber and then sterilized, the sterilization is carried out completely.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device that can effectively purify and sterilize water with a simple structure.

(Prior art and its problems) Conventionally, water purification devices using activated carbon are widely known. However, these conventional purification devices have a structure in which the entire activated carbon layer is immersed in the water to be treated. Therefore, in the voids within the activated carbon layer, bacteria breed due to dissolved oxygen or nutrients in the water to be treated, and the activated carbon layer is destroyed. In many cases, the water to be treated that has passed through the process is actually contaminated before being used.

In addition, if the entire activated carbon layer is constantly immersed in the water to be treated as described above, the surface of the activated carbon, which has an effective purification function, will be covered with the water to be treated, so it will not be able to exert its sufficient purification function. I can't.

In view of the above circumstances, this invention provides a water purification device using activated carbon without reducing the purification function of the activated carbon.
To provide a water purification and sterilization device with a simple structure capable of effectively sterilizing water.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention provides a treatment water supply chamber, an activated carbon filling chamber,
A water storage sterilization chamber for the water to be treated is provided, and an ultraviolet germicidal lamp is inserted in the center of the chamber, and the ultraviolet irradiation part of the germicidal lamp is located in and below the water storage sterilization chamber. An outflow port for the water to be treated is formed around the irradiation section, and a float switch is provided in the inlet chamber and the water storage sterilization chamber to stop the supply of the water to be treated when the inlet chamber is full. Then, the supply of water to be treated is started when the water storage sterilization room is in a drought state.

(Function) With the above configuration, the water to be treated flows down without staying in the activated carbon filling chamber, so it can be purified without being contaminated by bacterial growth, and the water that has passed through the activated carbon filling chamber can be purified. The treated water is irradiated with ultraviolet rays from the irradiation part in the water storage sterilization chamber, and further flows down along the irradiation part from an outlet formed around the irradiation part, so complete sterilization can be performed.

(Example) The present invention will be explained below based on the illustrated example.
2 is a water purification and sterilization device showing one embodiment of the present invention, and 2 is its housing. The inside of the housing is constructed by providing a cover 2c on the upper end of a separable main body α1.2b,
A Niha cross cap 3 is provided above the interior thereof, and an inlet port for the water to be treated is formed above the cap, and an activated carbon filling chamber is formed below the inlet port. An activated carbon layer 7 is provided and fixed between the r cloths 6α and tb provided above and below, and a water sterilization chamber t for storing water to be treated is formed below the activated carbon layer 7.

One is an ultraviolet germicidal lamp unit, and the ultraviolet germicidal lamp unit 9 includes an ultraviolet irradiation part// which has an outer periphery of an ultraviolet germicidal lamp 10 covered with a protection tube made of, for example, quartz glass.
2, and a holder part 15 that is located above the irradiation part 2 and supports the protection tube //, and has a lamp connector l+, etc., attached therein to which a power supply line 73 and the like are connected.

Further, a cylindrical member 16 is provided in the center of the water supply chamber DA and the activated carbon filling chamber S, and the ultraviolet germicidal lamp unit 9 is inserted into the cylindrical member 6, and the holder part 15 is inserted into the cylindrical member 16. The lower end is received by the flange/6α formed on the inner periphery of the lower end of the cylindrical member 1B, thereby allowing the ultraviolet irradiation part 7.2 to enter the water storage sterilization chamber!
and located below it. In this embodiment, the lamp receiver 17 is recessed in the center of the lower end of the housing λ, and the lower end of the ultraviolet germicidal lamp unit 9 is inserted into the lamp receiver 17. A water-tight support member is interposed between the protective tube and the lamp holder 17.

Furthermore, a guide plate 20 supported by a support column 9 is provided at the bottom of the water storage sterilization chamber t, and an outflow port of the water to be treated is formed around the guide plate through an ultraviolet irradiation part /λ in the center of the guide plate □. A hole 2/ is provided in such a manner that the hole 21 is formed, and a depending wall 2.2 is provided below the periphery of the hole 21.

In addition, a faucet 23 for treated water is provided at the bottom of the housing λ, and a heat insulating layer 2j with a cooling pipe installed is wrapped around the outer wall of the housing main body α that corresponds to the outer periphery of the water storage sterilization chamber and the lower part thereof. be.

In addition, 7-4 switches 2≦ and 27 of an automatic water supply circuit, which will be described later, are installed inside the water supply chamber and water storage sterilization chamber, and in this embodiment, a purification sterilization device/water softener is installed outside. 2.5' is provided, and the inside of the water softener 2r is filled with cationic ion exchange resin to remove taste-impairing components such as calcium ions, iron, and manganese contained in the water to be treated. At the upper end of the water softener 2Ir, there is provided a supply device 29 for supplying a regenerating liquid, such as saline water, for regenerating the cationic ion exchange resin, and at the lower end of the water softener 21, a supply device 29 is provided for supplying a regenerating liquid, such as saline water, for regenerating the cationic ion exchange resin. A drain cock 3° is provided to allow the water to be treated containing water to be discharged.

The water to be treated is supplied to the intake port 32 by opening the solenoid valve 3/.
After passing through the connecting pipe 33 and being fed into the water softener .

The water to be treated that has been introduced into the feed chamber j passes through the cross cap 3 and is introduced into the activated carbon layer 7 in the activated carbon filling chamber j.

In the process of passing through the activated carbon layer 7, the water to be treated is purified and stored in the lower water storage sterilization chamber t.

The water stored in the water storage sterilization chamber t is irradiated with ultraviolet rays generated from the irradiation section /2 through the protective tube //, and is sterilized.

In addition, in this invention, a hole 2/ is provided in the center of the guide plate 2 of the water storage sterilization chamber t, through which the ultraviolet irradiation part /2 is passed, and an outlet for the water to be treated is formed around the hole 2/. Since there is a hanging wall n, the water to be treated flows through the holes 2 and 2.
/ is caused to flow down through the irradiation part 12, and during this time it is irradiated with ultraviolet rays from the irradiation part /2, so the water storage sterilization chamber t
Bacteria that were living there are also completely sterilized. In this embodiment, the lower end of the ultraviolet germicidal lamp unit 9 is inserted into the lamp holder 17 formed by recessing the center of the lower end of the housing body λα, so that the irradiation unit 12 is located inside the housing body λα.
It extends to the lower end surface of α, and therefore sufficient ultraviolet irradiation can be performed with a compact device.

At the same time, the water to be treated stored in the water storage and sterilization chamber is cooled by the cooling pipe installed on the outer wall of the housing body 2α, so when the faucet 23 is opened, purified and sterilized cooling water is obtained. It will be done.

Water storage sterilization room! The automatic water supply circuit shown in Fig. 2 automatically replenishes water when the amount of water in the water storage sterilization chamber t9- decreases. When the surface starts to drop, F0
-) The switch core operates and the contacts of the float switch 27 close, and the power supply voltage lights up the water shortage indicator L/ to display a warning to the user.
Keep the contacts of the water supply indicator light and 2 closed at all times.
lights up and drives relay K. When the contact α of the relay is closed by driving the relay, a power supply voltage is applied to the solenoid valve 3/, and the solenoid valve 31 sends the water to be treated into the purification and sterilization device Nl.

On the other hand, if the activated carbon layer 7 is used for a long period of time, it will become clogged and the r-overspeed of water will decrease, and in extreme cases, no r-flow will occur at all. In such a case, the activated carbon layer 7 is immersed in the water to be treated,
During this time, the water to be treated is contaminated by bacteria that have grown in the activated carbon layer 7, and the water inlet chamber for the water to be treated is filled with water, increasing the internal pressure and creating a dangerous situation.

In such a case, when the water level rises above the upper limit water level of the inlet chamber G, the float switch installed in the inlet chamber L,
Contact 10- of the float switch roller opens, turning off the water supply indicator L2, and at the same time, the solenoid valve 31
Close. This state is maintained until the water level in the feeding chamber v decreases to a normal state.

Therefore, in this invention, the activated carbon layer 7 is not immersed in the water to be treated, and the water to be treated constantly flows down inside the activated carbon layer 7, so that the water to be treated is not contaminated by bacteria that have grown in the activated carbon layer 7. Never.

Moreover, since the lifespan of the activated carbon layer 7 can be determined based on the lighting state of the water supply indicator light L2, maintenance of the activated carbon layer 7 becomes easy. In addition, when replacing the activated carbon layer 7, the main body α,
2b may be separated.

Furthermore, as another method for suppressing bacterial growth within the activated carbon layer 7, there is a method of boiling and sterilizing the water to be treated before being fed into the activated carbon layer 7.

FIG. 3 shows an effective boiling sterilization device in this case.

This boiling sterilizer 3g has a heater 3≦ having a heater 3j inside, and a spiral inner tube -/l-3! inside an outer tube 37. r, and an outer tube 37.
The inlet 110 of the water softener, 2. The outlet of the outer pipe 37≠/ is connected to the inlet of the heater 3t, the outlets of the heater 3B are connected to the inlet q of the inner pipe 3t, and the outlet of the outer pipe 37 is connected to the inlet of the heater 3t.
The first outlet is connected to the above-mentioned purification and sterilization device.

In the above configuration, the water to be treated that exits the water softener 21 passes through the connecting pipe 33 and is guided into the outer pipe 37 of the heat exchanger 3q, and further passes through the outer pipe 37 and is led to the heater 3B. . In the heater 36, the water to be treated is sterilized by boiling at about 90° C. by the heater 3j. Next, the water to be treated heated in the heater 36 is guided into the inner pipe 3, and in the process of passing through the inner pipe 3, the water to be treated passes through the outer pipe 37 and is mixed with the water at about 25°C. The water undergoes heat exchange to become hot water of about 30 to 40°C, and is sent into the purification and sterilization equipment 1.

Therefore, in this embodiment, since the water to be treated is sterilized by boiling before being sent to the purification and sterilization device, viable bacteria will not be introduced into the activated carbon layer 7 by the water to be treated, and the Bacteria will not grow.

In addition, by passing through the boiling sterilizer 3, ions, manganese, etc. contained in the water to be treated are concentrated, but these are adsorbed during the process in which the water to be treated passes through the activated carbon layer 7. , these solid components will not adhere to the inner wall of the housing body 2α.

Furthermore, a heat exchanger 39 is attached to the heater 36, and the heater 3g
Heater 3
The heating capacity of the cooling pipe 6 and the cooling capacity of the cooling pipe are low, and energy saving and equipment simplification can be achieved.

Note that if the steam pressure inside the heater 36 rises above the safety range, the safety valve IIS may be opened to release the steam to the outside.

(Effects of the Invention) In summary, according to the present invention, it is possible to perform purification and sterilization treatment without contaminating the water to be treated with bacteria within the activated carbon layer, and it is also possible to purify and sterilize water with a simple structure. can.

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[Brief explanation of drawings]

Fig. 1 is a vertical side view of a purification and sterilization device showing an embodiment of the present invention, Fig. 2 is an automatic water supply circuit diagram, and Fig. 3 is a boiling water to be treated water provided in front of the purification and sterilization device according to the present invention. It is a longitudinal side view of a sterilizer. In the figure, λ is a housing, DA is a water supply chamber to be treated, j is an activated carbon filling chamber, ZA is a water storage sterilization chamber, 9 is an ultraviolet germicidal lamp, and 7.
2 is an ultraviolet irradiation unit, 2o is the bottom plate of the water storage sterilization chamber t, ko/ is a hole, and 26 and 27 are float switches. Patent applicant Hikaru Yamagata Nido Agent Patent attorney Fuku 1) Faith and inclination Agent Patent attorney Fuku 1) Take Renma Agent Patent attorney Fuku 1) Kenzo Figure 2

Claims (2)

[Claims] (1) A chamber for supplying water to be treated, an activated carbon filling chamber, and a storage sterilization chamber for water to be treated are provided from the upper part of the housing, and an ultraviolet germicidal lamp is inserted in the center of the chamber, and the ultraviolet irradiation part of the germicidal lamp is inserted. Located in the water storage sterilization room and below it,
An outflow port for the water to be treated is formed around the irradiation section at the bottom of the water storage sterilization chamber, and a float switch is provided in the inlet chamber and the water sterilization chamber for the water to be treated, so that a float switch can be installed in the water storage and sterilization chamber to detect the drought state of the water storage sterilization chamber. 1. A water purification and sterilization device characterized in that the supply of water to be treated is started in a state where the feed chamber is full of water, and the supply of water to be treated is stopped when the inlet chamber is full of water. (2) A boiling sterilization device consisting of a heat exchanger and a heater is provided in front of the device that purifies the water to be treated by passing it through an activated carbon packed bed and further sterilizes it by irradiating it with ultraviolet rays, The water to be treated is fed into the heater through one pipe of the heat exchanger, and the water sterilized by boiling in the heater is passed through the other pipe of the heat exchanger, thereby causing the water to pass through the other pipe of the heat exchanger. heat exchange between the treated water passing through the pipes,
A water purification and sterilization device characterized in that water is cooled to an appropriate temperature and then supplied to the activated carbon packed bed.