JP2009293912A - Integrated system of rainwater collection device, water purifying device and solar heat water heating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To respond to a request for an efficient using method of rainwater and solar heat energy which allows, in addition to collection and purification of rainwater, conversion of hot water obtained after heating the purified water to bathing hot water or the like, whereas the purified rainwater is generally used for watering to garden plants, car washing, or toilet flushing, or converted to drink water for emergency, but not used as the water source of a solar heat water heater, and further a request for reduction of loads on natural environments by use of reproducible water resource and energy in addition to reduction of the cost required for ensuring hot water, whereas supply of tap water requires high expense, and the energy used for hot water suppy occupies a considerable amount of the energy consumption in daily life. <P>SOLUTION: For self-support and efficient use of purified water and heating energy, the system is constituted by integrating each function of rainwater collection and purifying function and water heating function using solar heat energy. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rainwater collecting device and a system in which a water purifier and a solar water heating device are integrated in order to reduce the load on the natural environment by effectively using renewable water resources and energy.

  Effective use of renewable energy has been promoted from the viewpoint of reducing the load on the natural environment, and various types of solar water heaters have been devised and spread. In addition, a method for storing and reusing relatively clean rainwater has been devised and spread in spite of concerns about depletion and pollution of water resources.

Conventionally, as rainwater purification devices, portable devices incorporating a filter having a bacteria removal function (see, for example, Patent Document 1), and vertical gutters incorporating rainwater filtration and sterilization devices (see, for example, Patent Document 2). In addition, a relatively small-scale rainwater treatment system has been devised such as a system in which filtration, sterilization, disinfection and storage functions are integrated (for example, see Patent Document 3). Moreover, the concept (for example, refer patent document 4) which integrated treatments, such as rainwater filtration, disinfection, ph adjustment, mineral elution, and storage, is also devised.
JP 2006-051428 A Japanese Patent Laid-Open No. 11-200572 Japanese Patent Laid-Open No. 09-047765 Japanese Patent Application Laid-Open No. 09-23496

  However, the purified water obtained by the above is usually used for watering garden trees, washing cars, washing toilets, etc., or diverted to emergency drinking water. What is the source of solar water heater? It has not been. At the same time as collecting and purifying rainwater, it is necessary to devise a method for efficiently utilizing rainwater and solar thermal energy that can be used for hot water obtained after heating the purified water by solar heat.

  In addition, supply of tap water requires enormous costs such as securing water sources, purification of sewage, and maintenance of waterworks, and a considerable amount of energy used for hot water supply in daily life. Accounted for. Therefore, it is required to reduce the burden on the natural environment through the use of renewable water resources and energy, as well as the cost of securing hot water.

  In order to reduce the cost of securing hot water and to reduce the burden on the natural environment, the water purification function and solar thermal energy to collect and filter rainwater and to sterilize and disinfect it are used for the self-sufficiency and efficient use of purified water and heating energy. Establish a system that integrates the warm water heating function.

  Consumers and business operators will be able to reduce the expenditure of light and hot water, and the burden on the natural environment will be reduced by promoting the realization of a sustainable low-energy consumption society. At the same time, the storage effect of water heaters helps to prevent flood disasters.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a layout diagram showing a cross-sectional view of the vertical positional relationship and running water path of an apparatus required for implementing the present invention.

  In order to flow the hot water heated by the solar water heater (3) to the bathtub (4) after the rainwater collected from the rain gutter (1a) is filtered, disinfected, sterilized, etc. in the water purifier (2), from (1a) (2) All the water flow steps going down to (3) and (4) are arranged so as to depend on gravity.

  Drainage to the hot water bathtub (4) obtained by the solar water heater (3) and its stop are controlled in the drain cock (5), and after drainage, new rainwater is collected to collect the water purifier (2) solar heat. Fill up the water heater (3).

  In principle, the space between the entrance of the water purifier (2) and the drain cock (5) is always full, and rainwater overflowing from the water purifier (2) is discharged through the overflow pipe (1b).

  The hot water temperature after drainage can be adjusted by heating with an existing water heater or neutralization with tap water.

Sectional drawing which shows the positional relationship and flow path of the integrity and height of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a Rain gutter 1b Overflow pipe 2 Water purifier 3 Solar water heater 4 Bathtub etc. 5 Drain cock

Claims (2)

  A system in which rainwater collected from rain gutters, etc. is purified by a water purifier and then heated by a solar water heater, and the hot water is supplied to a bathtub or the like, that is, a rainwater collector, water purifier, and solar water heater are integrated.   The system according to claim 1, wherein the water used is rainwater, the warming energy is solar heat, and the movement of water is due to gravity, that is, all actions are fulfilled by natural sources.

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