JP2539039B2 - Household water reuse equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an invention for reuse of water at home.

[Prior Art] In the past, water used at home was used only once for each purpose, and after being used, it was directly discharged to the sewer as waste water. For example, hot and cold water in a bathtub in the bathroom is drained to the sewer after a day's bathing. Currently, the other domestic wastewater is discharged to the sewer as it is.

[Problems to be Solved by the Invention] However, as described above, it is a problem that the water that has been used only once for each purpose in the home is drained into the sewer after reuse without being reused. There is.

. Since the water is used only once and is drained to the sewer, all the water needed at home will be supplied from new tap water,
There are problems that the cost of water supply will increase, the burden on households will increase, the facilities will also become large for the water supply business that supplies water, and efforts will have to be made to secure water.

. Since the water is used only once and is drained to the sewer, the amount of wastewater discharged to the sewer increases, the usage fee of the sewer increases and the burden on the household increases, and it is necessary to treat a large amount of sewer at the sewer treatment facility. Therefore, there is a problem that the equipment becomes large and the sewage treatment cost becomes high.

. Furthermore, in recent years, the demand for water has been increasing year by year, and there are cases where the supply of water cannot keep up with the demand, such as in the summer, and when the demand for water continues to increase in the future, water resources will be in short supply. From the viewpoint of these water resources, it is a water resource problem that the water used at home is not reused and is drained to the sewer.

The present invention is invented in view of the problems of the above-described conventional example, and the purpose thereof is to reuse the water used in the home at home, and to use the water in the home and the amount of drainage. It is to provide a domestic water reuse device that can reduce the amount of water.

[Means for Solving the Problems] In order to achieve the above object, the domestic water reuse device of the present invention is a circulation pump in a circulation path 2 that sucks hot water in a bathtub 1 in a bathroom and discharges it again as filtered hot water into the bathtub 1. 12 and a filtration device 13 are provided, and a branch water supply passage 4 for supplying water from the circulation passage 2 to the washing machine 3 is branched via a switching valve 15 at a position downstream of the circulation pump 12 and the filtration device 13 in the circulation passage 2 to form a bathroom. Washroom 5
The waste water tank 6 into which the waste water of the washing machine 3 and the waste water of the washing machine 3 flow is provided, and the waste water supply path 7 that supplies the water of the waste water tank 6 as water for cleaning the toilet 8 is provided.

Further, the waste water in the bathroom washing place 5, the waste water in the washing machine 3, or the other waste water generated at home may be made to flow into the dirty water tank 6.

[Operation] Then, the hot and cold water of the bathtub 1 is sucked through the circulation path 2 and is discharged to the bathtub 1 again as filtered hot and cold water.
The hot and cold water of the bath can be used for many days, and when washing, the hot and cold water of the bathtub 1 is supplied to the washing machine 3 from the branch water supply passage 4 branched from the circulation passage 2 and used as washing water. In addition, the drainage of the washing room 5 in the bathroom and the drainage of the washing machine 3 are collected in the waste water tank 6, and the water in the waste water tank 6 is supplied from the waste water supply passage 7 to the toilet 8
It is supplied to the side and used as water for cleaning the toilet bowl 8. Here, when the wastewater generated in other households other than the wastewater of the washing place 5 and the wastewater of the washing machine 3 is allowed to flow into the dirty water tank 6, the wastewater generated in other households is also used as the water for cleaning the toilet bowl 8. It is something.

[Examples] The present invention will be described in detail below based on examples shown in the accompanying drawings.

FIG. 1 shows a schematic perspective view of an embodiment of the present invention. Both ends of the circulation path 2 are connected to the bathtub 1 of the bathroom, and an opening at one end of the circulation path 2 serves as an inlet 9 and an opening at the other end serves as an outlet 10. A heat-retaining device 11 such as a heater, a circulation pump 12, a filtering device 13, a sterilizing device 14 and the like are provided in the middle of the circulation path 2, and the branch water supply path 4 is provided in the circulation path 2 via a three-way switching valve 15. Is branched, and the tip of the branch water supply path 4 is connected to the washing machine 3 so that water can be supplied. An end of a hot water supply pipe 17 led out from the hot water supply device 16 is also connected to the circulation path 2, and an open / close valve 18 is provided in the hot water supply pipe 17. Water supply pipe 19 connected to water supply
20 for branch pipes for sewage tanks and 2 for hot water supply devices
1, a branch pipe for shower 22, a branch pipe for washing machine 23, a branch pipe for washbasin 24, a branch pipe for toilet 25, etc. are branched.
The hot water supply device branch pipe 23 is connected to the hot water supply device 16, connects clean water to the hot water supply device 16, and supplies hot water heated by the hot water supply device 16 to the bathtub 1 side via the hot water supply pipe 17 or a shower. Piping
Hot water is supplied to the shower head 30 via 26, or is supplied to the mixing stopper 29 of the washbasin 28 via the wash water pipe 27. The branch pipe 23 for the washing machine is connected to a valve on the washing machine side so that water can be supplied to the washing machine 3, and the branch pipe 24 for the washbasin is connected to the mixing tap 29.

The drainage water from the washing room 5 in the bathroom, the drainage water from the washing machine 3, or the drainage water from the washbasin 28, which is generated in other households, flows into the wastewater tank 6 through the drainage pipe 32. One end of a drainage supply passage 7 is connected to the wastewater tank 6, and the drainage supply passage 7 has a metering pump 3 in the middle thereof.
3. A microbial treatment device 34, a filtration device 35, a sterilization device 36, a high tank 37, and a low tank 38 are arranged. Dirty water tank 6
Is provided with an overflow port 39, and the sewage tank 6 is connected to the tip of a sewage tank branch pipe 20 having a valve 40. Then, in the waste water tank 6, the waste water of the washing place 5, the waste water of the washing machine 3, the waste water of the other households such as the waste water of the washbasin 28 respectively flow into the waste water tank 6 through the drain pipe 32, and only a predetermined amount. When more drainage is stored and flows in, it is drained to the sewer side from the overflow port 39, and when the water level in the dirty water tank 6 is below a certain level, the valve 40 is opened so that the clean water is supplied to a certain level. Has become. The metering pump 33 discharges a certain amount of wastewater in the wastewater tank 6 toward the microorganism treatment device 34 side (for example, 0.2 / min).
It is for continuous supply. The high tank 37 is arranged above the low tank 38, a pipe 41 forming a part of the drainage supply path 7 is opened at the upper part of the high tank 37, and the microorganism treatment device 34, the filtration device 35, and the sterilization device 36 are installed. The passed wastewater is supplied from the pipe 41 into the high tank 37. A pipe 42 forming a part of the drainage supply passage 7 is led out from the lower portion of the high tank 37, and this pipe 42 is connected to a ball tap valve device 43 of the low tank 38. The washing water for the toilet 8 is contained in the low tank 38, but when this washing water is used, the low tank 38 is operated by the operation of the ball tap valve device 43.
A certain amount of waste water in the high tank 37 is supplied inside. An overflow port 44 is provided in the upper portion of the high tank 37, and when the water level in the high tank 37 reaches a certain level or higher, the overflow port 44 discharges the water to the dirty water tank 6 or the sewer side. Further, the high tank 37 is provided with a ball tap device 45 provided at the tip of the toilet branch pipe 25, and when the water level in the high tank 37 falls below a certain level, the ball tap device 45 works to cause the toilet branch pipe to operate.
From 25, clean water is supplied to a certain level.

The hot and cold water in the bathtub 1 is sucked into the circulation passage 2 from the suction port 9 by the operation of the circulation pump 12 and returned to the bathtub 1 from the discharge port 10. In addition, the temperature is kept warm by the heat retention device 11, filtered by the filtration device 13, sterilized by the sterilization device 14, and the hot and cold water in the bathtub 1 is purified so that the bathtub 1 can be bathed for many days by pouring hot and cold water once. Has become. And in this case, the heat retention device
By keeping it warm by 11, you can make it possible to bathe for 24 hours. On the other hand, when using the washing machine 3,
The hot and cold water of the bathtub 1 that has been sucked through the suction port 9 by switching the three-way switching valve 15 flows from the middle of the circulation path 2 to the branch water supply path 4 and is supplied to the washing machine 3 to be used as washing water. And
The water level of the bathtub 1 is lowered by using the hot and cold water of the bathtub 1 in the washing room 5 at the time of bathing, or by using it as the washing water used in the washing machine 3 as described above, but the water level of the bathtub 1 is lowered. Is detected by the water level detection means, and when the water level falls below a certain level, the open / close valve 18 opens and hot water from the hot water supply device 16 is supplied to the hot water supply pipe 17. The hot and cold water in the bathtub 1 is replaced in whole or in part when continuously used for several days. In this case, the hot and cold water in the bathtub 1 is drained from the drainage section 48 of the bathtub 1 to the sewer pipe side.

On the other hand, the wastewater generated in the washing room 5, the washing machine 3, the washbasin 28 and other households is collected in the sewage tank 6, and the sewage collected in the sewage tank 6 is supplied to the wastewater supply passage 7 by the metering pump 33 in a certain amount. The sewage that is continuously sent to the drainage supply path 7 little by little by a certain amount is purified by the action of microorganisms in the microorganism treatment device 34, and further passes through the filtration device 35 and the sterilization device 36. By doing so, the filtration process and the sterilization process are performed and the high tank 37 is supplied. And when cleaning the toilet 8, low tank 38
The water in the low tank 38 flows into the toilet bowl 8 to wash the inside of the toilet bowl 8 by opening the opening / closing valve, and the dirty water after washing the toilet bowl 8 is discharged to the sewer. Here, when the water in the low tank 38 is supplied to the toilet 8 side as cleaning water for the toilet 8, the ball tap valve device 43 provided in the low tank 38 supplies a certain amount of waste water in the high tank 37 to the low tank 38. To do.

FIG. 2 shows a piping diagram of another embodiment of the present invention. In this embodiment, the hot water supply device 16 is provided with a reheating function, and hot water in the bathtub 1 is added through the reheating pipe. It is designed to be fired. The shower pipe 26 is provided with a hot and cold water mixing tap 46 so that hot water can be supplied to the bathtub 1. Further, in this embodiment, the branch water supply path 4 and the washing machine branch pipe 23 are connected via a three-way switching valve 47,
As water to be supplied to the washing machine 3, hot water and clean water in the bathtub 1 can be selected by switching the three-way switching valve 47.

[Effects of the Invention] In the present invention, as described above, the branch water supply path for supplying water to the washing machine is branched from the circulation path for sucking hot water in the bathtub of the bathroom and discharging it again as filtered hot water into the bathtub. It can be used for many days by circulating hot water in the bathtub and filtering it.When washing, the hot water in the bathtub is supplied to the washing machine from the branch water supply branching from the circulation path and used as washing water. It is possible to effectively use the hot and cold water in the bathtub, and in particular, the hot and cold water in the bathtub after being used for many days is replaced with new hot and cold water. It can be used, and a circulation pump or filter is installed in the circulation path that sucks hot and cold water from the bathtub of the bathroom and discharges it again as filtered hot water into the bathtub, and circulates the branch water supply path that supplies water to the washing machine from the circulation path. Since it branched through a switching valve at a position downstream of the circulation pump and filtering device in the passage, by switching the switching valve, water is supplied to the washing machine in the branch water supply passage and the hot water in the bathtub is effectively used as washing water. Of course, it is possible to supply hot water to the washing machine with the circulation pump by switching the switching valve by effectively utilizing the circulation path for circulating the hot water of the bathtub.
There is no need to arrange a separate pump to supply water to the washing machine,
Plumbing can be done easily, and clean and hot water that has been filtered can be supplied to the washing machine without any problems. In addition, wastewater from the bathroom washing area and washing machine drainage tank Since there is provided a drainage supply passage for supplying the water in the dirty water tank as water for cleaning the toilet, it is possible to effectively use the drainage of the washing place and the washing machine as the toilet cleaning water, and in particular, in this case, After the hot water in the bathtub is once reused as washing water, it can be reused again as water for cleaning the toilet bowl, and the water can be effectively used.

In addition, if a sewage tank into which the drainage from the bathroom washing room, the washing machine drainage, or other household wastewater flows in, not only the washing place drainage and the washing machine drainage but also other household wastewater are generated. The wastewater produced can also be reused.

Thus, according to the present invention, the hot water of the bathtub, the drainage of the washing place, the drainage of the washing water, etc. can be reused as a system to effectively utilize the water used at home, resulting in the use of tap water. There is an advantage that the amount can be reduced and the amount of wastewater discharged to the sewer can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an embodiment of the present invention, and FIG. 2 is a piping diagram of another embodiment of the present invention. 1 is a bathtub, 2 is a circulation path, 3 is a washing machine, and 4 is a branch. A water supply channel, 5 is a washing place, 6 is a waste water tank, 7 is a drainage supply channel, and 8 is a toilet bowl.

Front page continued (72) Inventor Tetsuo Morikawa 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Toshio Uemoto, 1048, Kadoma, Kadoma City, Osaka Matsushita Electric Works, Ltd. (72) Inventor Takeshi Namakoshi 1048, Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor Takehiko Osawa 2-5-14 Minamisuna, Koto-ku, Tokyo Takenaka Corporation Technical Research Institute (72) Inventor Seiichi Yabe 2-5-14 Minamisuna, Koto-ku, Tokyo Inside the Takenaka Corporation Technical Research Institute (72) Inventor Isao Oga 1250 Shimoeren, Shimodate City, Ibaraki Prefecture Hitachi Chemical Co., Ltd. Yuuki Factory (72) Invention Toshimasa Umehara 1250 Shimoeden, Shimodate-shi, Ibaraki Pref. Hitachi Chemical Co., Ltd. Yuki Plant (56) Reference JP 56-64045 (JP, A) JP 50-80651 (JP, A) JP Showa 52-121943 (JP, A) Actually opened Showa 55-44876 (JP, U)

Claims (2)

(57) [Claims] 1. A circulation pump or a filtering device is provided in a circulation path for sucking hot and cold water from a bathtub in a bathroom and discharging it again as filtered hot water into the bathtub, and a branch water supply channel for supplying water from the circulation path to a washing machine is provided as a circulation pump for the circulation path. A sewage tank is installed at a position downstream of the filtration device via a switching valve to allow the wastewater from the bathroom washing room and the wastewater of the washing machine to flow in, and the sewage tank water is supplied as water for toilet cleaning. A domestic water reuse device characterized by being provided with a channel. 2. A circulation pump or a filtering device is provided in a circulation path for sucking hot water from a bathtub in a bathroom and discharging it again as filtered hot water into the bathtub, and a branch water supply path for supplying water from the circulation path to a washing machine is provided as a circulation pump for the circulation path. A sewage tank is provided at a position downstream of the filtration device via a switching valve, and drainage from the bathroom washing basin, washing machine effluent, or other household effluent is installed, and the sewage tank water is used as a toilet bowl. A domestic water reuse device characterized in that a drainage supply channel for supplying water for cleaning is provided.