JPH08270024A - Two-line water supply system by use of heat storage tank in emergency - Google Patents

Abstract

PURPOSE: To economize city water, by providing a reuse water-supplying line in addition to a city water supply line in a condominium or the like provided with a heat storage tank for air conditioning and pumping up the water in the heat storage tank in the case of suspension of water supply to use the water for flushing in toilets. CONSTITUTION: An elevated water tank 3 for city water and an elevated water tank 25 for reuse water are separately installed in a condominium or the like and a pumping-up pipe 5 for city water, city water supply pipes 6, a pumping-up pipe 24 for reuse water, and reuse water supply pipes 26 are arranged respectively. The heat storage tank 27 is connected to the reuse water storage tank through pipes 29 connected to a pump 28. When the supply of city water has been suspended, the water in the heat storage tank 27 is pumped up to use for the flushing water of toilets or the like except drinking water and keep drinking water as long as possible. In a building provided with a circulation system of reuse water, it is enough to connect a reuse water tank to a heat storage tank 27. In this way, drinking water for an emergency can be retained for a long time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building provided with a heat storage tank for storing water for heat storage of an air-conditioning system, in which valuable water in a water supply water receiving tank is used in an emergency when the clean water is cut off for a long time. The present invention relates to a new two-system water supply facility that enables the water in a heat storage tank to be used as intermediate water in order to suppress waste of water.

[0002]

2. Description of the Related Art As a water supply facility in a conventional building,
Single-system water supply equipment as shown in FIG. 3 is widely adopted. This one-system water supply facility generally receives the tap water from the water main 1 at the tap water receiving tank 2 on the building side, and feeds the tap water from the tap water receiving tank 2 to the top of the building. After pumping up via the clean water pumping pipe 5 having the clean water pumping pump 4 in the water tank 3, the washbasin 7, the bath tub 8, the toilet 9, etc. on each floor from the clean water elevated water tank 3 through the clean water supply pipe 6 The waste water and waste water discharged from the wash basin 7, the bathtub 8, the toilet 9 and the like on each floor are collected through the waste water drain pipe 10 and the waste water pipe 11 and drained to the sewer pipe 12. ing. In the figure, 13 is a roof drain, 14 is a rainwater stand pipe, 1
Reference numeral 5 indicates a rainwater pipe.

On the other hand, in a large-scale building, as shown in FIG. 4, in order to save water for clean water, a two-system water supply system introducing a middle water system is being adopted. This two-system water supply facility collects the wastewater discharged through the wastewater pipe 10 into a drainage tank 16, and collects this wastewater treatment device 17, a filter 18, and a disinfecting device 19.
The rainwater collected from the roof drain 13 through the rainwater standpipe 14 is stored in the intermediate water storage tank 20 via the settling tank 21 and the rainwater storage tank 22 and then stored in the intermediate water storage tank 20. Pumped up as intermediate water to the intermediate water elevated water tank 25 installed on the roof of the building via the intermediate water pumping pipe 24 having the intermediate water pumping pump 23, and from this, the intermediate water supply pipe 26
A middle water system system for supplying water to the toilet bowl 9 on each floor via the water supply system is provided separately from the clean water supply system system.

In any of the above-mentioned water supply facilities, it is general that the amount of water stored in the water receiving tank 2 and the high water placing tank 3 is set to about 0.6 days. This is to prevent residual chlorine from being unable to be retained due to water staying in the water tank for a long time. Therefore,
In the unlikely event of a disaster, the supply of clean water will be cut off, and in the event of an emergency such as when water is cut off, there is a problem that drinking water can only be secured for about 0.6 days. Considering that 60 to 70% of the amount of clean water used in one system of water supply is used for cleaning the toilet 9, it is necessary to save clean water and secure clean water in an emergency. Is a serious problem. On the other hand, in recent years, in large-scale buildings, many buildings have been installed with a heat storage tank in order to save power consumption of the air conditioning system. The amount of water stored in this heat storage tank is the above-mentioned clean water receiving tank 2 and clean water high storage tank. It is much larger than the amount of water stored in the water tank 3, and may be used as a large-capacity source of medium water.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to secure as much drinking water as drinking water and for a long period of time in an emergency such as when the supply of drinking water is cut off and the water is cut off. To obtain water supply equipment that can
Further, another object of the present invention is to provide a two-system water supply system comprising a two-system water supply system, that is, a clean water supply system and a gray water supply system, so that the clean water can be saved. It is to secure a sufficient amount of water that can be used as tap water in the event of an emergency when water is cut off. Another object of the present invention is to introduce tap water into the water supply system of the tap water supply system only to save tap water in an emergency, and to use the tap water separately from the tap water, and it is sufficient. The purpose is to obtain water supply facilities that can secure a certain amount of gray water.

[0006]

In order to solve the above-mentioned problems, a two-system water supply system using an emergency heat storage tank of the present invention is a water supply system in a building equipped with a heat storage tank. Between the two are connected by a pumping pipe having a pumping pump, and in an emergency, the water in the heat storage tank is pumped up to the water supply system, and the water can be used as intermediate water separately from the water supply system. It is characterized by that. In addition, the two-system water supply facility using the emergency heat storage tank of the present invention is a water supply facility in a building including a two-system water supply system of a clean water supply system and a gray water system, and the heat storage tank and the above-mentioned heat storage tank. While connecting with a pumping pipe having a pumping pump between the middle water storage tank constituting the middle water system system, the water of the heat storage tank is pumped up to the middle water storage tank in an emergency, and the same water is used as middle water. It is characterized in that it can be used. Further, the two-system water supply system using the emergency heat storage tank of the present invention is a water supply system in a building provided with only a water supply system and a heat storage tank. At least two elevated water tanks are provided, and a water supply pipe for toilet bowl cleaning is piped from one of them, and the water supply elevated water tank and the heat storage tank are connected by a water pump having a water pump, and the water is also water. It was not possible to shut off between the high water tank and other high water high water tanks.In an emergency, the water in the heat storage tank was pumped up to the high water high water tank, and the water could be used as medium water. It is characterized by that.

[0007]

According to the two-system water supply system using the emergency heat storage tank of the present invention, the water in the heat storage tank is pumped up to the water supply system system via the pump and the pump in the case of an emergency such as water outage due to a disaster. Since water can be used as tap water separately from the tap water supply system, the amount of tap water used can be reduced by that amount, and the period during which tap water can be used can be extended. Can secure water. In addition, according to the two-system water supply system utilizing the emergency heat storage tank of the present invention, the water in the heat storage tank constitutes a middle water system system through a pump and a pump when an emergency such as water interruption due to a disaster occurs. Since water can be pumped up to the tank and used as clean water separately from the clean water supply system, clean water water saving type water supply system with two system of clean water supply system and clean water system The function as a facility can be further improved and a large amount of gray water can be secured. Further, according to the two-system water supply system using the emergency heat storage tank of the present invention, the water of the heat storage tank is connected to a plurality of water supply system systems via the water pump and the water pump in the event of an emergency such as water interruption due to a disaster. Because it can be pumped up to one of the high water supply tanks and used as separate water from the clean water supply system, it can be used in a single system water supply system equipped with only a clean water supply system. In addition, it is possible to save a large amount of tap water and to secure a large amount of tap water while extending the usage period.

[0008]

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a system diagram of a two-system water supply facility using an emergency heat storage tank according to a first embodiment, and FIG. 2 is a system diagram of a two-system water supply facility using an emergency heat storage tank according to a second embodiment. The first embodiment is an example in which the present invention is applied to a water supply facility having two water supply systems, a clean water supply system system and a gray water system system. As described in the section of the prior art, the tap water supply system for water supply equipment generally receives the tap water from the water main 1 in the tap water receiving tank 2 on the building side once, and feeds this tap water to the tap water receiving tank. After pumping up from 2 through a clean water pump pipe 5 having a clean water pump 4 to a clean water elevated water tank 3 installed on the roof of the building, then from the clean water elevated water tank 3 through a clean water supply pipe 6. It is configured to supply water to the washbasin 7, bathtub 8 and the like on each floor.

The middle water system has a washbasin 7 on each floor.
The wastewater discharged from the bathtub 8 and the like is collected in the drainage tank 16 via the wastewater pipe 10, and the wastewater treatment device 17 and the filter 1 are collected.
8. The rainwater collected from the roof drain 13 through the rainwater stand pipe 14 is collected in the middle water storage tank 20 through the settling tank 21 and the rainwater storage tank 22 while being collected in the middle water storage tank 20 through the disinfecting device 19 and the like. After that, this water is pumped up to the intermediate water elevated water tank 25 installed on the roof of the building via the intermediate water pumping pipe 24 having the intermediate water pumping pump 23 as the intermediate water, and the intermediate water supply pipe 26 is connected from here. Water is supplied to the toilet bowl 9 on each floor via the waste water, and sewage discharged from the toilet bowl 9 on each floor is collected via the sewage pipe 11 and drained to the sewer pipe 12.

On the other hand, in a building provided with a heat storage tank for storing water for heat storage of an air conditioning system, a large-capacity heat storage tank 27 is installed below the basement floor of the building. The heat storage tank 27 and the middle water storage tank 20 constituting the middle water system system are connected by a pumping pipe 29 having a pumping pump 28, and the water in the heat storage tank 27 is stored in the middle water in an emergency such as water interruption due to a disaster. The tank 20 can be pumped up.

As described above, in the two-system water supply facility having the two systems of the water supply system and the water supply system for the purpose of saving the water supply, the heat storage tank 27 and the water supply system are connected. By connecting the constituent water storage tank 20 with a pumping pipe 29 having a pumping pump 28, the water in the heat storage tank 27 is pumped through the pumping pump 28 and the pumping pipe 29 in an emergency such as water cutoff due to a disaster. Since this water can be pumped up to the intermediate water storage tank 20 and used as intermediate water, it fully fulfills the purpose of conserving water in the event of an emergency such as a water interruption. However, since a sufficient amount of medium water can be secured by the water in the large-capacity heat storage tank 27, the toilet bowl 9 can be used for a long period of about one week.

Next, a second embodiment in the case where the present invention is applied to a water supply facility having a single water supply system having only a clean water supply system will be described with reference to FIG. In the second embodiment, since the water supply system is only one system of the tap water supply system, the water in the heat storage tank 27 can be taken in as the intermediate water and used in the same manner as in the first embodiment. It is necessary to separate the inside of the clean water supply system into a clean water system and a clean water system so that the clean water and the clean water do not mix when taking the water in the heat storage tank 27 as clean water.

For this reason, in the second embodiment, at least two high-water tanks 3 installed on the roof of the building are installed,
It is possible to pump up clean water from the clean water receiving tank 2 through the clean water pumping pipe 5 having the clean water pump 4 to the two clean water high water tanks 3 and 3A, respectively, Water pipe for flushing the toilet bowl so that water can be supplied from the elevated water tank 3 to the wash basin 7, the bathtub 8 and the like on each floor via the clean water supply pipe 6 and the other high water tank 3A can supply water to the toilet bowl 9. 6A is installed, and the outlet part of the clean water pumping pipe 5 to the clean water elevated water tanks 3 and 3A and the clean water supply pipe 6 and the supply pipe 6A
A shut-off valve 30 is installed at each of the connection parts with and the inside of the clean water supply system can be separated into two systems, and then between the heat storage tank 27 and the other high water standing water tank 3A, A pumping pipe 29 having a pumping pump 28 is connected so that the water in the heat storage tank 27 can be pumped up to the other upper water tank 3A in case of an emergency such as water cutoff due to a disaster.

Therefore, also in the second embodiment, in the event of an emergency such as a water outage due to a disaster, the shutoff valve 30 is closed to separate the water supply system into a water supply system and a water supply system. After preventing the mixture, the water in the heat storage tank 27 is passed through the water pump 28 and the water pump pipe 29 to the high water supply water tank 3A.
Since this water can be pumped up to the inside and supplied as clean water via the water supply pipe 6A for cleaning the toilet 9, etc., the amount of clean water equivalent to the amount of clean water used for cleaning the toilet can be saved. can do. Therefore, even if the water is cut off in an emergency, it is possible to secure drinking water for a longer period of time than the conventional one and secure a large amount of medium water. In the conventional tap water supply system, when the tap water supply is cut off as described above and 60 to 70% of the amount of tap water used is used for cleaning the toilet 9, You can only secure drinking water for about 0.6 days,
By allowing the water in the heat storage tank 27 to be used as intermediate water as well, it becomes possible to use the precious clean water remaining in the clean water receiving tank 2 and the high water tank 3 for a long time of about three times. .

[0015]

As described above, according to the two-system water supply system using the emergency heat storage tank of the present invention, the heat storage is stopped even in an emergency when the supply of clean water is cut off due to the occurrence of a disaster. Since a large amount of water stored in the tank can be effectively used as medium water, the normal water supply system normally holds about 0.6 days of water in the system while saving water. Since it can be used for a long time about twice as long, it becomes easy to secure drinking water in an emergency.
In addition, since it is possible to secure a large amount of medium water, by using the water for cleaning the toilet bowl, even if water is cut off, it is possible to use the toilet bowl for a long period of about one week. It will be possible. It should be noted that the present invention is applicable to a water supply facility including two existing water supply systems including a clean water supply system system and a medium water system system, as well as a water supply system including only one system of a clean water supply system. It can be easily applied by additionally installing a pump and pump in the equipment.

[Brief description of drawings]

FIG. 1 is a system diagram of a two-system water supply facility using an emergency heat storage tank according to a first embodiment of the present invention.

FIG. 2 is a system diagram of a two-system water supply facility using an emergency heat storage tank according to a second embodiment of the present invention.

FIG. 3 is a system diagram of a conventional single-system water supply facility.

FIG. 4 is a system diagram of a conventional two-system water supply facility.

[Explanation of symbols]

 3, 3A Water supply elevated water tank 5 Water supply pumping pipe 6 Water supply pipe 6A Water supply pipe for toilet cleaning 20 Medium water storage tank 27 Heat storage tank 28 Pumping pump 29 Pumping pipe 30 Shut-off valve

Claims (4)

[Claims] 1. A water supply facility in a building having a heat storage tank, wherein the heat storage tank and the water supply system are connected by a pumping pipe having a pumping pump, and water in the heat storage tank is supplied to the water supply system in an emergency. A two-system water supply system using an emergency heat storage tank, which can be used separately from the clean water supply system by pumping up the same water as middle water. 2. A water supply facility in a building comprising two systems of a water supply system, a water supply system and a water storage system, and a heat storage tank and a water storage tank constituting the water supply system. While connecting with a pumping pipe with a pumping pump between
A two-system water supply system using an emergency heat storage tank, wherein water in the heat storage tank is pumped up to the intermediate water storage tank in an emergency so that the water can be used as intermediate water. 3. In a water supply facility in a building provided with a water supply system only for a water supply system and a heat storage tank, at least two water supply elevated water tanks constituting the water supply system are provided, one of which is provided. A water supply pipe for flushing the toilet bowl, and connecting the water supply high water tank and the heat storage tank with a water pump having a water pump, and connecting the water high water tank with another water high water tank. It is possible to shut off the space between them, and in an emergency, the water in the heat storage tank is pumped up to the above-mentioned high water supply water tank so that the water can be used as intermediate water. System water supply equipment. 4. A shutoff valve is provided in the tap water pumping pipe and the tap water supply pipe that connect between the above-mentioned tap water tank and another tap water tank, and in the event of an emergency The two-system water supply facility using an emergency heat storage tank according to claim 3, wherein the two high water storage tanks can be shut off from each other.