JP2006057434A - Cooling water and rainwater utilization system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooling water/rainwater utilization system for collecting and reusing the cooling water from a water-cooled ice-cream cone or ice-cream making machine which has been discharged into a sewer and also a falling rainwater as water. <P>SOLUTION: The invention includes a water storage tank for holding the falling rainwater and the cooling water discharged from the machines such as an ice-cream cone maker, a ice-cream maker or the like, a filtration device for filtering the water flowing into the water storage tank, a rainwater inflow pipe for letting the rainwater flow into the rainwater storage tank, a cooling water inflow pipe for letting the discharged cooling water from the machines such as an ice-cream cone maker, an ice-cream maker or the like flow into the water storage tank, and a recycling apparatus for supplying and reusing the water stored in the water storage tank. Thereby, a water resource is saved and a financial burden is lightened. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a water reuse system that stores cooling water discharged from equipment such as soft cream making machines and ice cream making machines, and rain water that has fallen, and reuses the water as toilet flushing water or water spray. is there.

Technical background

  Conventionally, cooling water discharged from equipment such as a water-cooled soft cream making machine and an ice cream making machine is discharged into sewage. However, it is not preferable to discharge the cooling water, which has just undergone heat exchange with tap water, into the sewage as it is, from the viewpoint of the burden of water resources and an economical viewpoint.

  As for the rainwater utilization system, there is a rainwater utilization system in which rainwater that has fallen on the roof is filtered, collected, stored, and used for medium water such as toilet flushing water or sprinkling water (see, for example, Japanese Patent Publication No. 2001-132022).

  As described above, it is a water resource and an economical burden to discharge the cooling water of the equipment such as the soft cream making machine and the ice cream making machine to the sewage. In addition, the rainwater utilization system has a problem that it cannot effectively use water resources if it does not rain for a long period of time.

  The present invention is intended to solve the above-described problems, and an object of the present invention is to realize a cooling water and rainwater utilization system for reducing water resources and economic burden.

  In order to achieve the above object, the present invention provides a water storage tank for storing rainwater and cooling water discharged from equipment such as a soft cream making machine and an ice cream making machine, a filtration device for filtering inflowing water, and rainwater. Reuse the rainwater inflow pipe that flows into the water storage tank, the cooling water inflow pipe that supplies the cooling water discharged from the equipment such as the soft cream making machine and the ice cream making machine, and the water stored in the water storage tank. A cooling water and rainwater utilization system having a water pump for supplying to equipment and a supply pipe connected to the water pump.

  When the water storage tank is installed at a higher position than equipment such as soft ice cream making machines and ice cream making machines, the cooling water discharged from equipment such as soft ice cream making machines and ice cream making machines is sent with a pump. There is a need.

  Accordingly, in the invention described in claim 2, a cooling water reservoir for storing cooling water discharged from equipment such as a soft cream making machine and an ice cream making machine, rainwater from the cooling water storage tank, and soft cream A cooling water feed pump that supplies cooling water discharged from equipment such as a manufacturing machine and an ice cream making machine to a water storage tank and a cooling water feed pipe connected to the cooling water feed pump are provided.

  In addition, the amount of cooling water discharged from equipment such as soft cream making machines and ice cream making machines is not constant, but is intermittently discharged, temporarily storing the discharged cooling water and supplying it to the water tank There is a need to.

  Therefore, a control unit that controls the operation of the cooling water supply pump such that when a predetermined amount of cooling water is stored in the cooling water storage tank, the cooling water supply pump starts operation and supplies water to the cooling water and rainwater use storage tank. Was provided.

  As an effect of the above solution, what has been conventionally discharged into sewage by reusing cooling water can be effectively used as toilet water such as toilet flushing water or sprinkling water, reducing water resources and economic burden. Can be reduced. Moreover, by not only reusing the cooling water but also effectively using rainwater, the efficiency can be further increased as compared with the case where only cooling water is reused or only rainwater is used.

  As described above, the cooling water and rainwater utilization system of the present invention uses rainwater together with reuse of cooling water that was originally discharged into sewage, and thus is more efficient than only cooling water reuse or rainwater use alone. It is possible to provide a cooling water and rainwater utilization system that can be used effectively and can reduce water resources and economic burden.

BEST MODE FOR CARRYING OUT THE INVENTION

  Next, an embodiment of the present invention will be described with reference to FIG.

  FIG. 1 shows a first embodiment of the present invention. On the roof a of the building, a rain gutter 1a for collecting and flowing rainwater falling on the roof is provided along the lower end of the roof a. The rain gutter 1 a is connected to the rainwater introduction pipe 2. The rainwater introduction pipe 2 is connected to a cooling water and rainwater reservoir 3. In the middle of the rainwater introduction pipe 2, a rainwater filtration device 3a is connected.

  A cooling water inflow pipe 7 for flowing cooling water discharged from a device 8 such as a soft cream manufacturing machine or an ice cream manufacturing machine is connected to the cooling water and rainwater storage tank 3.

  When the cooling water and rainwater water storage tank 3 exceeds a predetermined maximum water level, an overflow pipe 5 is attached to allow the water in the water storage tank to overflow and drain. The overflow pipe 5 is attached at a predetermined highest water level in the cooling water and rainwater reservoir 3. The overflowed water is discharged to the side groove 6 or the like.

  Further, the cooling water and rainwater storage tank 3 is provided with an automatic valve opening / closing device 3b, and when the water level decreases by use and becomes lower than a predetermined minimum water level, the valve opening / closing device 3c automatically operates and becomes insufficient. When water is supplied from tap water and the water level becomes higher than a predetermined minimum water level, the supply of tap water is automatically stopped. Various methods are conceivable for controlling the automatic opening / closing device 3b. For example, an automatic valve opening / closing device using buoyancy of a float can be used. In this case, when the float of the automatic valve opening / closing device rises with the water level, the valve opening / closing device 3c is closed to stop the supply of tap water, and when the float falls with the water level, tap water is started.

  The cooling water and rainwater storage tanks are provided with a supply pipe 4 for supplying the stored water as, for example, toilet flushing water. In the middle of the supply pipe 4, a reused water pump 4 a is connected. The supply pipe 4 branches in the middle and is connected to a toilet 4b or a water spigot 4c provided for watering or the like via a connection part and an on-off valve.

  Various methods can be considered for the operation and stop control of the reused water pump 4a. For example, a pressure detection type pump can be used. In this case, when the pump is stopped, the pressure in the supply pipe 4 from the reused water feed pump 4a becomes high because the valve of the toilet 4b and the water spigot 4c are closed. When the valve of the toilet 4b or the water spigot 4c is opened and the pressure in the supply pipe 4 decreases from the reused water supply pump 4a, the reused water supply pump that detects the pressure drop starts to operate.

  FIG. 2 shows a cooling water inflow pipe 8a for flowing cooling water discharged from equipment 8 such as a soft cream making machine or an ice cream making machine, and a cooling water storage tank 9 for storing cooling water in the system explained in FIG. A cooling water feed pump 9a for feeding water to the cooling water and rainwater storage tank, a cooling water feed pipe 9c for feeding the cooling water and rainwater water storage tank 3, and a controller 9b for controlling the operation of the cooling water feed pump 9a are added. This is an example of the case.

  On the roof a of the building, a rain gutter 1a for collecting and flowing rainwater falling on the roof is provided along the lower end of the roof a. The rain gutter 1 a is connected to the rainwater introduction pipe 2. The rainwater introduction pipe 2 is connected to a rainwater filtration device 3 a provided in the cooling water and rainwater storage tank 3. Rainwater that has passed through the rainwater filtration device is stored in the cooling water and rainwater storage tank 3.

  When the cooling water and rainwater water storage tank 3 exceeds a predetermined maximum water level, an overflow pipe 7 is attached to allow the water in the water storage tank to overflow and drain. The overflow pipe 7 is attached at a predetermined highest water level in the cooling water and rainwater reservoir 3. The overflowed water is discharged to the side groove 6 or the like.

  A drainage port is provided at the bottom of the cooling water and rainwater reservoir 3, and a drainage pipe 5 a is connected to the drainage port. An on-off valve 5 a is provided in the middle of the drain pipe 5.

  Further, the cooling water and rainwater storage tank 3 is provided with an automatic valve opening / closing device 3b, and when the water level decreases by use and becomes lower than a predetermined minimum water level, the valve opening / closing device 3c automatically operates and becomes insufficient. When water is supplied from tap water and the water level becomes higher than a predetermined minimum water level, the supply of tap water is automatically stopped. Various methods are conceivable for controlling the automatic opening / closing device 3b. For example, an automatic valve opening / closing device using buoyancy of a float can be used. In this case, when the float of the automatic valve opening / closing device rises with the water level, the valve opening / closing device 3c is closed to stop the supply of tap water, and when the float falls with the water level, tap water is started.

  Equipment 8 such as a soft ice cream making machine or an ice cream making machine is connected to a cooling water discharge pipe 8a. The cooling water discharge pipe 8 a is connected to the cooling water reservoir 9.

  The cooling water storage tank 9 is provided with a cooling water feed pump 9a and a controller 9b that controls the operation of the cooling water feed pump 9a. Cooling water discharged from a device 8 such as a soft ice cream making machine or an ice cream making machine is stored in the cooling water storage tank 9, and when the control unit 9 detects a predetermined water level, the cooling water feed pump 9a is activated to supply the cooling water. Water is supplied to the cooling water and rainwater storage tank 3 through the water supply pipe 9c. The cooling water feed pump 9a is stopped when the water level of the cooling water reservoir 9 reaches a predetermined position.

  The cooling water storage tank 9 is provided with an overflow pipe 11 so that the cooling water overflows and drains into the side groove 6 or the like when the water pump 9a does not operate for some reason.

  The cooling water and rainwater storage tank is provided with a supply pipe 4 for supplying the water in the tank as, for example, toilet drainage. In the middle of the supply pipe 4, a reused water pump 4c is connected. The supply pipe 4 branches in the middle and is connected to a toilet 4a or a water spigot 4b provided for watering or the like via a connection part and an on-off valve.

  Various methods can be considered for the operation and stop control of the reused water pump 4a. For example, a pressure detection type pump can be used. In this case, when the pump is stopped, the pressure in the supply pipe 4 from the reused water feed pump 4a becomes high because the valve of the toilet 4b and the water spigot 4c are closed. When the valve of the toilet 4b or the water spigot 4c is opened and the pressure in the supply pipe 4 decreases from the reused water supply pump 4a, the reused water supply pump that detects the pressure drop starts to operate.

Example 1 of cooling water and rainwater utilization system Example 2 of cooling water and rainwater utilization system

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cooling water and rainwater utilization system a Building roof 1a Rain gutter 2 Rainwater introduction pipe 3 Cooling water and rainwater storage tank 3a Rainwater filtration device 3b Automatic switchgear 3c Valve switchgear 4 Supply pipe 4a Reuse water pump 4b Toilet 4c Sprinkling Plug 5 Overflow pipe 6 Side groove 7 Cooling water drain pipe 8 Equipment such as soft cream making machine or ice cream making machine 9 Cooling water storage tank 9a Cooling water feed pump 9b Water level detection device 9c Cooling water feed pipe 10 Drain pipe 11 On-off valve

Claims (3)

  Rainwater and a water storage tank for storing cooling water discharged from equipment such as soft cream making machines and ice cream making machines, a filtration device for filtering water flowing into the water storage tank, and rainwater inflow for flowing rainwater into the water storage tank A pipe, a cooling water inflow pipe for allowing cooling water discharged from equipment such as the soft cream making machine and the ice cream making machine to flow into the water storage tank, and water supply for supplying the water stored in the water storage tank to the reuse equipment A cooling water and rainwater utilization system having a pump and a supply pipe connected to the water pump.   The cooling water and rainwater utilization system according to claim 1, further comprising: a cooling water reservoir for storing cooling water discharged from equipment such as a soft cream making machine and an ice cream making machine; and rain water and soft cream from the cooling water storage tank. Use of cooling water and rainwater provided with a cooling water feed pump for supplying cooling water discharged from equipment such as a manufacturing machine and an ice cream making machine to a water storage tank and a cooling water feed pipe connected to the cooling water feed pump system.   The cooling water and rainwater utilization system according to claim 2, further comprising a control unit for controlling the operation of the cooling water feed pump.

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