JPH01125436A - Washing hot water generator - Google Patents

Abstract

PURPOSE: To generate warm water for wash in a semi permanent state, by heating water with an electric heater, and by electrolyzing adding a direct current voltage to an insoluble electrode dipped in water to change a chlorine ion in water to chlorine so as to obtain optimum temperature water having bactericidal detergency. CONSTITUTION: Water is heated with an electric heater, and a solenoid valve is operated with a water level indicator 6 to supply water in a warm water tank 1 at use. A direct current rectified with a rectifier 13 is concurrently applied to an insoluble electrode 7, and a chlorine ion in water is electrolyzed to oxidize to generate chlorine having bactericidal detergency. To obtain a necessary density of the chlorine, a current is adjusted with a constant current device 11 and a constant voltage device 12 and the time of the current is adjusted with timer 8 for an electrolytic time according to water quality to set an appropriate density of chlorine. An electrolysis-instructing signal is sent for a definite period of time by chlorine in water to generate the chlorine by using a time switching timer 9, for suppressing variation per hour of the density of chlorine. Herewith, it is possible to supply the water of various water qualities while generating in optimum temperature water having bactericidal detergency.

Description

[Detailed Description of the Invention] <Technical Field of the Invention> The present invention generates washing hot water having an appropriate temperature and sterilizing cleaning power for use in a buttock washing device, a hand washing device, a dishwashing device, and other devices that use washing hot water. The present invention relates to a washing hot water generating device.

<Technical Background and Problems of the Invention> Recently, sanitary cleaning devices such as buttock cleaning devices have become widespread, and greater consideration has been given to hygiene. The present invention aims to actively disinfect and clean objects to be cleaned by providing hot water for cleaning with appropriate sterilizing and cleaning power. Conventionally, to produce sterilizing hot water for cleaning, a heater was installed in a hot water tank to heat the water, and a sterilizer injection device was separately attached to inject an appropriate amount of sterilizer into the hot water. With this method, if the medicine runs out, it is necessary to replenish it, but it is often a hassle or the medicine is forgotten, so the medicine continues to run out.

Another method for producing hot water for sterilizing and cleaning is to produce sterilizing water by converting chlorine ions, which are always present in tap water, into chlorine through electrolysis, and to use the current to heat the water. However, with this electrolytic heating method, the chlorine generation efficiency is affected by the chlorine ion concentration and conductivity of the water, and since the chlorine ion concentration and conductivity of water vary from place to place, the temperature and chlorine concentration of hot water can be determined independently. It was difficult to control.

There is also a method of installing an electric heater and a chlorine generating electrode together and controlling the water temperature with a water temperature sensor and the chlorine concentration with a sensor other than the water temperature sensor, but there is no way to reliably and safely control the chlorine concentration, and there is a method to control the chlorine concentration in the water. There are drawbacks such as the lack of inexpensive equipment for measuring chlorine concentration, resulting in high costs.

<Purpose of the Invention> The present invention uses tap water of various water quality to generate and supply water at an appropriate temperature with sterilizing cleaning power of strength suitable for the purpose, and actively removes bacteria and dirt from objects to be cleaned. The purpose of the present invention is to provide a cleaning hot water generating device that can be used semi-permanently without requiring chemical replenishment, etc.

<Summary of the Invention> The present invention provides a device that heats water using an electric heater while applying a DC voltage to an insoluble electrode immersed in the water to convert chlorine ions in the water into chlorine through electrolysis to obtain hot water for sterilization and cleaning. in,
When water flows into the hot water tank, the chlorine concentration generated by the electrolysis timer is adjusted according to the water quality of the inflowing water, and when keeping the water warm, the chlorine concentration is generated at regular intervals using the time interval timer to account for the amount of chlorine lost. It is designed to be supplemented. There is considerable variation in water quality in each region, and in order to deal with this,
A constant current device, a constant voltage device, an electrolysis time timer, etc. are attached to make it possible to adjust the electrolysis current and time. Furthermore, this device reverses the polarity of the electrode at regular intervals in order to remove cake-like substances such as calcium hydroxide formed on the cathode by electrolysis.

<Embodiments of the Invention> Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention. Reference numeral 2 denotes an electric heater, which generates heat intermittently according to instructions from a water temperature sensor 5 to maintain the water temperature at an appropriate temperature. When this device is used, when the hot water for washing in the hot water tank 1 comes out from the water outlet 4 and is used, the water supply solenoid valve 3 is operated in response to an instruction from the water level gauge 6, and water is supplied into the hot water tank 1. Meanwhile, in parallel with this, a direct current rectified by the rectifier 13 flows to the insoluble electrode according to instructions from the water supply solenoid valve 3 or the water level gauge 6, and chlorine ions in the water are oxidized by electrolysis, generating chlorine that has sterilizing and cleaning power. do. At this time, the amount of chlorine generated is determined by the electrolysis current, electrolysis time, and water quality, but in order to obtain the necessary chlorine concentration, the current is adjusted using the constant current device 11. Using the constant voltage device 12, the electrolysis time is adjusted using the electrolysis time timer 8 to set an appropriate chlorine concentration. Chlorine in the water dissipates to the outside or reacts with the wall of the vessel and disappears and decreases over time, so the time interval timer 9 is used to send an electrolysis instruction signal at regular intervals to generate chlorine and monitor changes in chlorine concentration over time. I'm suppressing it. Constant voltage device 12 used here
does not need to be a strictly constant voltage, and may simply be connected to a transformer. If electrolysis continues, calcium hydroxide and the like will accumulate in the form of a cake on the cathode surface, so the polarity of the electrode is periodically switched using the polarity switching device 10 to dissolve and remove it.

The insoluble electrode materials of the present invention include composite films of ferrite, graphite, platinum, platinum group metals, and their oxides, but those with a platinum-iridium oxide film formed on a titanium base material have excellent chlorine generation efficiency and durability. .

Although the arrangement of each element 8 to 13 is illustrated in the above embodiment, each of the above elements may be selectively rearranged and used as necessary.
Further, other elements may be incorporated, and the present invention is not limited to the above embodiments.

<Effects of the Invention> As explained above, the cleaning hot water generating device of the present invention can semi-permanently produce water at an appropriate temperature with appropriate sterilizing and cleaning power according to the various qualities of tap water without the hassle of replenishing chemicals. can be generated and supplied.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment according to the present invention. 1... Hot water tank, 2... Electric heater, 3... Water supply solenoid valve, 4... Water outlet, 5... Water temperature sensor,
6... Water level gauge, 7... Insoluble electrode, 8... Electrolysis time timer, 9... Time interval timer, 1
0... Polarity switching device, 11... Constant current device, 1
2... Constant voltage device, 13... Rectifier.

Claims (1)

[Scope of Claims] 1) In a cleaning hot water generating device that includes an insoluble electrode and an electric heater in a hot water tank, the time for energization to the insoluble electrode is controlled by an electrolysis timer whose setting is variable, and the energization is controlled by a time interval timer. and/or a washing hot water generating device, which is directed by a water inflow signal and is characterized in that the insoluble electrode is provided with a constant current device and/or a constant voltage device, a rectifier, and a polarity switching device. 2) The cleaning hot water generating device according to claim 1, wherein the constant current device and/or the constant voltage device are variable in setting. 3) The washing hot water generating device according to claim 1, wherein the water inflow signal is provided by a water level gauge or an inflow solenoid valve provided in the hot water tank.