WO2016140417A1

WO2016140417A1 - Water saving system for public facilities

Info

Publication number: WO2016140417A1
Application number: PCT/KR2015/010525
Authority: WO
Inventors: 강현식
Original assignee: 주식회사 에코시스
Priority date: 2015-03-04
Filing date: 2015-10-06
Publication date: 2016-09-09
Also published as: KR101671511B1; KR20160107569A

Abstract

The present invention relates to a water saving system for public facilities, which allows water, which has been used in a sink, to be reused in a toilet. The configuration of the system is characterized by comprising: a water storage tank connected to a water drain hole of a public sink via a drained water supply pipe so as to store water drained from the public sink; a filtering part installed inside the water storage tank in order to filter water supplied from the public sink; a water supply part for separately supplying water to a toilet via a water supply pipe in order to wash a toilet bowl using water filtered inside the water storage tank; and a water filling part for supplying tap water when the amount of water stored in the water storage tank is equal to or lower than a set level.

Description

[Correction 25.11.2015 by Rule 26] Water Saving System in Public Facilities

The present invention relates to a water-saving system of a public facility, and more particularly, to a water-saving system of a public facility to reuse waste water after use in a wash basin.

Public facilities used by groups such as military units, various sports facilities, training centers, schools, etc. are installed with water supply facilities that can be used simultaneously by multiple people. One of the water supply facilities is a shared sink. The shared wash basin is designed to allow several people to wash their face and hands and feet at the same time or to do simple laundry. The public wash basin may be provided in a straight line so that several people can stand side by side in a straight line, or it may be provided in a circular form so that it can be used in a circle.

These shared washbasins have significant water consumption when used by multiple people. On the other hand, most of the water used is dumped into the sewer without being heavily polluted.

As the water shortage is intensifying, efforts are being made to recycle the waste water. In the past, a method or apparatus for recycling and recycling sewage or sludge has been proposed. However, in most cases, only the contents are suitable for general households having large facilities or vice versa.

An object of the present invention for the above problems is to provide a water-saving system for treating the water resources discarded after use to change to available resources. More specifically, it is an object of the present invention to provide a water-saving system of a public facility for reusing water used in a public wash basin provided in a group facility as wash water for toilet.

The above object is connected to the drain of the common wash basin through a drain supply pipe to store the water drained from the shared wash basin; A purification unit for purifying water supplied from the shared wash basin by being installed in the water storage tank; A water supply unit for individually supplying purified water in the water storage tank to the toilet through a water supply pipe for cleaning the toilet bowl; A water replenishment unit for supplying water from the constant when the amount of stored water of the water storage tank is less than the set value; is achieved by the water saving system of a public facility.

According to a feature of the present invention, the purifying unit has a structure in which the sewage is purged while passing through the first filter and the second filter by gravity, and the particles such as hair are large from the water supplied from the drain of the shared sink. A first filter for filtering foreign substances; It may include a second filter for purifying the water passed through the first filter using the activated carbon.

According to another feature of the invention, the water supply unit; A main pump pumping water stored in the water storage tank and supplying the water to each toilet of the toilet;

A flushing detecting unit for sensing the operation of the flushing valve lever provided in each toilet of the toilet;

When the water drop detection unit detects the operation of the water flush valve to apply a signal may include a control unit for supplying the water stored in the water storage tank to the corresponding toilet by operating the main pump.

According to another feature of the present invention, the water lowering valve is a solenoid valve, the solenoid valve may be operated by the control unit, while being operated by a switch installed around the toilet.

According to another feature of the present invention, a check valve may be installed at the inlet of the water supply pipe so that water flows in only one direction from the water storage tank to the toilet bowl.

According to the above configuration, there is provided a system that can be reused without discarding the water used in the public wash basin provided in the public facilities. More specifically, a system is provided that saves the water used to clean the toilet in the bathroom. According to the present invention, it is not necessary to provide a separate washing water tank in each toilet installed in the toilet, so that the structure of the toilet of the toilet can be simplified, and the problem of the trouble occurring in the flushing device of the toilet can be eliminated. do.

1 is a block diagram of a water saving system of a public facility according to an embodiment of the present invention.

2 is a block diagram of a water saving system of a public facility according to another embodiment of the present invention.

3 is a block diagram of a water saving system of a public facility according to another embodiment of the present invention.

4 is a perspective view of a water storage tank of a water saving system of a public facility according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view thereof.

6 is an enlarged partial cross-sectional view for explaining a purification unit of the water-saving system of a public facility according to an embodiment of the present invention.

7 is an internal circuit block diagram of a control box of a water saving system of a public facility according to the present embodiment.

The present invention is connected to the drain of the common wash basin through a drain supply pipe for storing the water drained from the shared wash basin; A purification unit for purifying water supplied from the shared wash basin by being installed in the water storage tank; A water supply unit for individually supplying purified water in the water storage tank to the toilet through a water supply pipe for cleaning the toilet bowl; And a water replenishment unit for supplying water from the constant when the amount of stored water in the reservoir tank is less than or equal to a set value.

Hereinafter, with reference to the accompanying drawings will be described in detail the details of the present invention.

The reservoir tank 10 is connected to the drain of the common wash basin 1 through the drain supply pipe 3. The reservoir tank 10 stores the water drained from the shared sink 1 and the storage capacity is determined by the user's choice. The water storage tank 10 is composed of a tank body 11 having an upper opening and a top plate 12 in the form of a cover for sealing the upper opening of the tank body. The side wall of the tank body 11 is provided with a constant supply port 15 for receiving constant water and a discharge port 16 so that water can flow out.

The purification unit purifies the water supplied from the shared wash basin 1 by being installed in the water storage tank 10. The purifying unit may include a first filter 20 and a second filter 30. Hereinafter, the purification unit will be described with reference to FIG. 6.

5 and 6, the present invention has a structure in which the purified water consisting of the first filter and the second filter is purified while passing the sewage by gravity, but the sewage is passed by the pump instead of gravity as necessary. You can also The first filter 20 is for filtering foreign matter having large particles such as hair, soap chips, etc. from the water supplied from the drain of the shared sink 1. The first filter 20 may include a sump 21 having a drainage hole at the bottom thereof and a metal filter 22 mounted on the bottom of the sump 21. The sump 21 is fitted into the first filter seating groove 14 recessed in the top plate 12 of the reservoir tank 10. The sump 21 is fitted into the first filter seating groove 14 so that the manager can easily lift it by hand. Water passing through the first filter 20 is introduced into the second filter 30 installed in the direct direction.

According to the exemplary embodiment of the present invention, as shown in FIG. 6, the second filter 30 is inserted into the filter casing 31 and the filter casing 31 installed in the form of hanging on the bottom surface of the top plate 12 of the water storage tank. Granular activated carbon 32.

Nonwoven fabrics

34 and 35 are provided at the outlet and inlet sides of the filter casing 31 to prevent activated carbon 32 from flowing out of the filter casing 31 and to enhance the purification effect of the sewage. The shape of the filter casing 31 is composed of a large diameter portion 31a having a wide cross-sectional area at the lower portion thereof, and a small diameter portion 31b having a relatively narrow cross-sectional area at the upper portion thereof compared to the large diameter portion 31a. This configuration is to allow the water is quickly purified to be introduced into the storage tank (10) internal space (S). The activated carbon 32 of the second filter 30 is used to neutralize the odor generated from the synthetic detergent and the like by turbidity of the water.

The water supply unit separately supplies the purified water in the storage tank 10 to the toilet 2 through the water supply pipe 4 for cleaning the toilet 2 in the toilet. The water supply unit includes a water supply pipe 4, a main pump 40, a water fall detection unit, and a controller. The water supply pipe 4 connects the storage tank 10 and each toilet 2 in series or in parallel so that the water in the storage tank 10 is supplied to each toilet. As shown in FIG. 1, each toilet 2 is connected in parallel.

The main pump 40 pumps the water stored in the water storage tank 10 and supplies it to each toilet 2 of the toilet. The main pump 40 may be installed inside the water storage tank 10 or attached to the outside thereof. The main pump 40 is driven by the signal of the controller. The flushing detection unit determines whether or not the toilet user has operated the flushing valve 5 generally installed in the toilet 2 in the toilet and applies a signal to the controller.

In order to sense a change in the physical position of the water flush valve 5, a magnet switch (not shown) may be installed at the water flush valve lever 2a. Accordingly, when the water lowering valve lever 2a is operated, the water lowering valve 5 is opened, and at the same time, a signal is applied to the main pump 40, and consequently, the water inside the water storage tank is flushed through the water lowering valve 2a. (2) to be supplied by injection. The water lowering valve lever 5 is designed to be slowly returned to its original position even after the user releases his or her hand so that the water in the water storage tank 10 can be sufficiently supplied to the toilet 2 during the closing.

Meanwhile, as shown in FIG. 2, the button-type switch 6 for operating the solenoid valve 5 'as the solenoid valve 5' and operating the solenoid valve 5 'has only an electrical signal to the solenoid valve 5' and the control unit. Each can be applied.

That is, when the user presses the switch 6, the solenoid valve 5 'is opened for a predetermined time, and during the open time, the control unit operates the main pump 40 to supply water to the toilet. Here, when a signal is simultaneously applied to several toilets 2, the main controller may sequentially open the solenoid valves 5 ′ of each toilet 2 so that there is no water shortage.

When the water drop detection unit detects the operation of the water flush valve and applies a signal, the controller 50 operates the main pump 40 to supply the water stored in the water storage tank 10 to the toilet 2. The control unit controls the operation of the main pump and the input / output device, and main components are embedded in the control box 50. The control box 50 is mounted on the control box seating portion provided on the side wall of the water storage tank 10. The control panel of the control box 50 is exposed to the outside of the reservoir tank 10 to facilitate adjustment and may be protected by a cover. When the controller detects the operation of the water flush valve and applies a signal, the controller operates the main pump 40 to supply the water stored in the water storage tank 10 to the toilet 2.

A description with reference to FIG. 3 is as follows. According to another embodiment of the present invention, two or more main pumps 40 and 40 'may be installed to be operated separately. The plurality of main pumps 40 and 40 'operate independently by signals from the control unit. When the flushing signal is applied to several toilets at the same time, there may be a pressure drop phenomenon. By increasing the operation amount of the main pumps 40 and 40 ', the insufficient flow rate may be compensated for.

In some cases, as shown in FIG. 3, a plurality of

water supply pipes

4 and 4 ′ and a plurality of

main pumps

40 and 40 ′ may be installed in parallel, and each of the toilets 2 may be shared.

On the other hand, as the water filled in the water supply pipe 4 returns to the water storage tank 10 by its own weight, a cavity may be generated inside the water supply pipe 4. Then, even if the water lowering valve 5 is opened and the main pump 40 is operated, the water will be supplied to the toilet only after some time has elapsed. This time delay is undesirable. Therefore, it is preferable to provide a check valve 41 at the beginning of the water supply pipe 4. It is preferable to maintain the water pressure to some extent in the water supply pipe 4 so that the water can be supplied to the toilet 2 even immediately when the water lowering valve 5 is opened.

According to an embodiment of the present invention, a water replenishment unit for supplying water from the water supply source is further included when the amount of stored water in the water storage tank 10 is less than or equal to a set value. It is for the case that there is no water in the storage tank 10 because the use of the common wash basin (1). Water replenishment is a water level detection unit for detecting the water level in the water storage tank 10, the water supply pipe 6, the end of which extends to the water storage tank 10, and is provided at the end of the water pipe (6) It may include a constant valve (7) for opening and closing the water pipe (6) by the signal of the control unit so that the constant water is supplied into the water storage tank (10).

As shown in FIG. 5, the level sensor 60 may include three

sensor electrodes

61, 62, and 63 having different lengths, respectively. When water comes into contact with the ends of the

sensor electrodes

61, 62, 63, the sensor body 64 recognizes this by energizing and sends a signal to the controller.

Hereinafter, the operation will be described with reference to FIG. 1.

When a signal is detected at the low-point sensor electrode 61, it means that water to be supplied to the toilet is insufficient. In this case, the controller opens the constant valve 7 to supply constant water. When a signal is detected at the high point electrode electrode 63, it means that the reservoir tank 10 is full, and the control unit closes the constant valve 7 so that the supply of constant water is blocked.

The mid-point sensor electrode 63 serves as a bridge and detects an intermediate state when the period of the signal detected by the low-point sensor electrode 61 and the high-point sensor electrode 63 becomes non-ideally short or long. This is to check the case where the signal of the electrode 62 is skipped and to send an abnormal signal to the manager.

When an abnormality occurs and the control unit cannot control the flow rate, the water inside the water storage tank 10 overflows to the sewer pipe 8 through the discharge port 16.

7 is only a preferred embodiment based on the technical features of the present invention shown and described above. Those skilled in the art will be able to make various modifications based on common technical knowledge, but it should be noted that this may be included in the protection scope of the present invention. All described embodiments may be arbitrarily combined, and any matters not described among these combinations are also interpreted as being included in the scope of the present invention.

That is, in one embodiment, the internal circuit of the control box 50 of the water-saving system of the common facility may include a power supply unit 51, a power supply unit 51a, an AC 220V output unit 51b, a DC 24V output unit 51c, and a main pump. 51d, input / output 51e, solenoid valve / check valve 51f, control unit 55, main controller 55a, encoder 55b, input / output unit 55c, solenoid valve control device (constant) Water supply) (55d), main pump operation setting SW (551), main pump control (55e), water drop detection sensor (55g), solenoid valve control device (pressurized water supply) (55h), water level detection unit (60), high point It consists of a sensor electrode 61, a mid-point sensor electrode 62, a low-point sensor electrode 63 and the like.

Claims

A storage tank connected to the drain of the shared sink through a drain supply pipe to store water drained from the shared sink;

A purification unit for purifying water supplied from the shared wash basin by being installed in the water storage tank;

A water supply unit for individually supplying purified water in the water storage tank to the toilet through a water supply pipe for cleaning the toilet bowl;

A water replenishment unit for supplying water from the constant when the amount of stored water in the water storage tank is less than or equal to a set value;

Water saving system of a public facility comprising a.
According to claim 1, The purification unit;

A first filter for filtering foreign matter having large particles such as hair from the water supplied from the drain of the shared sink;

And a second filter for purifying water that has passed through the first filter using activated carbon.
According to claim 1, The water supply unit;

A main pump pumping water stored in the water storage tank and supplying the water to each toilet of the toilet;

A flushing detection unit for sensing the operation of the flushing valve provided in each toilet of the toilet;

A controller configured to operate the main pump to supply water stored in the water storage tank to a corresponding toilet when the water flush detection unit senses an operation of the water flush valve to apply a signal;

Water saving system of a public facility comprising a.
The method of claim 3,

The water flushing valve is a solenoid valve, and the solenoid valve is operated by a switch installed around the toilet, while also operating by the control unit, water saving system of a public facility.
The method of claim 1,

And a check valve is installed at the inlet of the water supply pipe so that water flows in one direction only from the water storage tank to the toilet bowl.
The method of claim 2,

The first and second filters of the phase water saving system of the public facility, characterized in that the sewage is purified by passing through the gravity.
The method of claim 2,

The second filter has a filter casing which is installed to hang on the bottom of the upper surface of the water storage tank, and the lower portion of the filter casing is composed of a large diameter portion having a large flat area and a small diameter portion having a relatively small flat portion in comparison with the large diameter portion. Water saving system of a public facility, characterized in that the.
The method of claim 7, wherein

Non-woven fabric is installed on the outlet and inlet side of the filter casing, the water-saving system of the public facility, characterized in that the activated carbon is filled between the non-woven fabric.
The method of claim 1,

The water supply unit separately supplies the purified water in the storage tank to the toilet through a water supply pipe for cleaning the toilet in the bathroom, and the water supply pipe is configured to supply the storage tank and each toilet to supply water to the toilet. Water saving system of a public facility, characterized in that connected in series or in parallel.
The method of claim 3,

The main pump is provided with two or more to operate independently by the signal of the control unit water saving system of the common facility, characterized in that to compensate for the insufficient flow rate by increasing the number of operating when there is a hydraulic pressure drop phenomenon.
The method of claim 3,

The water saving system of the public facility, characterized in that the magnetic switch is installed in the water valve valve to detect the change in the physical position of the water valve.