JP2010007281A - Sterilization and cleaning equipment for water closet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide sterilization and cleaning equipment for a water closet, which sterilizes a toilet and sterilizes and cleans a water storage tank of the water closet, which prevents the outflow of acid water and alkaline water, produced by electrolysis in the supply and discharge of water, and the inflow of running water, and which can be easily assembled by being reduced in size. <P>SOLUTION: This sterilization and cleaning equipment EQ produces the acid water and the alkaline water by a diaphragm cell electrolysis process incorporated in the water storage tank. The sterilization and cleaning equipment comprises: an electrolytic cell E in which an acid electrolytic cell E1 for producing the acid water from an electrolyte solution and an alkaline electrolytic cell E2 for producing the alkaline water are juxtaposed via a vertical bulkhead 32 like a plate, and which is composed of a bulkhead 2 provided at the lower end of the vertical bulkhead 32; an auxiliary cell A for temporarily storing a saturated electrolyte solution thereon; and a horizontal bulkhead 31 like a plate, which is provided between the electrolytic cell E and the auxiliary cell A. An acid water supply/discharge pipe is provided in the acid electrolytic cell E1; an alkaline water supply/discharge pipe 42 is provided in the alkaline electrolytic cell; and an acid water and alkaline water supply/discharge hole 4 communicating with the water storage tank is provided below them. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sterilization / cleaning apparatus for flush toilets that sterilizes toilets with sterilized water and sterilizes and cleans a water storage tank disposed in the flush toilets with flush water.

Conventionally, a cleaning device that prevents sterilization such as odors and urine stones by sterilizing and cleaning the toilet after use of the toilet or periodically using sterilized treated water obtained by electrolyzing chlorine ion-containing water The following are known.
A toilet unit with a sterilizing water supply function attached to a building or the like includes an electrolysis tank for electrolyzing chlorine ion-containing water, a sterilizing water storage tank for storing sterilizing water generated in the electrolysis tank, and a downstream side thereof. Disinfection pumps that send sterilized water to the toilet and electromagnetic valves that open and close the sterilizing water outflow are provided, and the sterilization water stored in the water storage tank is controlled by the sterilizing water control device. A toilet is washed by supplying water to the toilet at an appropriate timing (see Patent Document 1).

Further, a toilet equipped with a water storage tank generally used at home, and a sanitary washing machine installed in the toilet is an electrolyte storage tank in which an electrolyte solution in which an electrolyte is dissolved in water is stored; An electrolytic decomposition tank for electrolyzing the electrolyte solution, a discharge port for discharging the treatment liquid (hypochlorite ion) electrolyzed in the electrolytic decomposition tank into the toilet, and a control means for controlling these processes, The toilet is washed by discharging hypochlorite ions from the discharge port provided on the wall surface of the toilet in the toilet (see Patent Document 2).
Furthermore, in an electrolysis device that obtains sterilized water, electrolysis of water containing an electrolyte causes adverse effects on the human body and equipment due to chlorine gas generated from the strongly acidic water anode electrode. In addition, there is provided a mixing means for mixing chlorine gas generated at the anode electrode of a DC power source with an alkaline solution (see Patent Document 3).

However, a general flush toilet as shown in Patent Document 2 is provided with a water storage tank, and the water storage tank has a water storage tank hermetically sealed by placing a lid that also serves as a hand-washer on the upper surface. Since there are floats and pipes inside, it is difficult to clean, the inside of the water storage tank becomes dirty and mold is generated, and there is a problem that malodorous components and mold spores are scattered in the toilet room. Since each apparatus of patent document 2 discharge | releases the sterilization water produced | generated by electrolysis directly to a toilet, and sterilizes, since it does not require a water storage tank, it cannot cope with such a problem. Moreover, since acidic water and alkaline water are not separated and extracted by electrolysis, there is also a problem that the alkaline water cleaning function cannot be used effectively.
Furthermore, in the case where the chlorine gas generated from the anode electrolytic cell by electrolysis is treated with alkaline water, the purpose is to take out acidic water as sterilizing water, and the treated alkaline water is discarded, and the above-described conventional As with the technology, there is a problem that alkaline water cannot be used effectively.

  Therefore, in order to solve the above-described problems, the present inventor has developed a sterilization / cleaning device for flush toilets shown in Patent Document 4. The flush toilet sterilization / cleaning apparatus is adjacent to an electrolytic cell that is built in a water storage tank of a flush toilet and includes an anode electrolytic cell that generates acidic water from an electrolyte solution and a cathode electrolytic cell that generates alkaline water. An auxiliary tank for temporarily storing the saturated electrolyte solution, and a storage tank is integrally provided on the electrolytic tank and the auxiliary tank, and a check valve is provided between the electrolytic tank and the auxiliary tank. Separated by the front and rear vertical partition walls provided, the anode electrolytic cell side wall is provided with a large flow rate acidic water supply / drainage pipe, and the cathode electrolytic cell side wall provided with a U-shaped water supply / drainage pipe having a different flow rate It is. The sterilization / washing device for flush toilets has the above-described structure, in particular, the provision of water supply / drainage pipes with different flow rates, so that acidic water is discharged into the toilet and the toilet is sterilized, while alkaline water is Since it is slowly discharged to the water storage tank T to sterilize and clean the water storage tank, the sterilization function of acidic water and the cleaning function of alkaline water can be effectively utilized (see Patent Document 4).

JP 09-144103 A JP 2000-027263 A JP 07-290060 A JP 2007-309089 A

The present inventor made a prototype for commercialization of the sterilization / cleaning device for flush toilet shown in Patent Document 4 and tried to put it into practical use. Acid water and alkaline water in the storage tank rarely occurs when the water flows out from the electrolytic tank to the water storage tank through the water supply / drainage pipe, etc., or vice versa. Was found to be diluted.
Initially, it was thought that the air accumulated in the upper space of the U-shaped water supply / drainage pipe would prevent acid water and alkaline water in the sterilization / washing device for flush toilets from flowing out to the water storage tank. The cause of the dilution of the acidic water and alkaline water in the water storage tank is that when tap water flows from the water storage tank into the sterilization / washing device for flush toilets, the air in the space above the U-shaped water supply / drainage pipe Therefore, after the storage tank is full, the acidic and alkaline water generated by electrolysis flows into the storage tank by osmotic pressure and the tap water is washed. It is thought that it occurs because it flows into the toilet sterilization / cleaning device.

  In addition, the device has a wide lateral width because a U-shaped or U-shaped water supply / drainage pipe is suspended from both side walls, and an associated tank is provided adjacent to the electrolytic cell. There is a problem that the depth is wide, and the storage tank is placed on the electrolytic tank and the associated tank, so that the height becomes high and the overall size increases. Since it is necessary to install a check valve and suspend a water supply / drainage pipe from the both side walls, there is a problem that the work efficiency of the assembly is poor.

  Accordingly, the present invention has been made to solve the above-described problems, and can efficiently sterilize a toilet and sterilize and wash a water storage tank of a flush toilet. Acidic water generated by electrolysis during water supply and drainage The first object is to provide a flush toilet sterilization / cleaning device that prevents the outflow of alkaline water and tap water, and the sterilization / cleaning device for flush toilets is reduced in size and easy to assemble. Is the second purpose.

In order to achieve the above object of the present invention, a flush toilet sterilization / cleaning apparatus according to claim 1 is a flush toilet sterilization / cleaning apparatus that generates acid water and alkaline water by a diaphragm electrolysis method, The sterilization / washing device for flush toilets is built in a water storage tank of flush toilets, and an acid electrolytic tank for generating acidic water from an electrolytic solution and an alkaline electrolytic tank for generating alkaline water are provided side by side through a plate-shaped vertical partition. An electrolytic tank composed of a diaphragm provided at the lower end of the vertical partition; an auxiliary tank for temporarily storing a saturated electrolyte solution thereon; and a plate-shaped horizontal partition between the electrolytic tank and the auxiliary tank. And an acid supply / drain pipe having an outer wall forming an H-shaped inner space in the acid electrolysis tank, and an alkali supply / drainage pipe having an outer wall forming an H-shaped inner space in the alkaline electrolysis tank Is provided Wherein the acid and alkali plumbing holes the water storage tank and communicating with the lower acid and alkali plumbing pipe is provided.
Similarly, in the sterilization / washing apparatus for flush toilets according to claim 2, the outer wall forming the H-shaped inner space divides the space of the acid and alkali water supply / drainage pipes vertically into two, and communicates the two. It is formed by the intermediate board which has.
The sterilization / cleaning apparatus for flush toilets according to claim 3 is characterized in that the water level of the water supply / drainage pipe after the stop of the supply of tap water is below the communication hole.
The sterilization / washing apparatus for flush toilets according to claim 4 is characterized in that the water level of the water supply / drainage pipe is in a range of 10 mm from the lower end of the communication hole to half the height of the lower intermediate plate.
In the flush toilet sterilization / cleaning apparatus according to claim 5, the water supply / drainage pipe includes the outer wall, the intermediate plate having the communication hole, the water supply / drainage hole communicating with the water storage tank, and the outflow / inflow hole communicating with the acid and alkaline electrolytic cell. It is characterized by that.
The sterilization / cleaning apparatus for flush toilets according to claim 6 is characterized in that the area of the acid supply / drain holes is larger than that of the alkali supply / drain holes.
The sterilization / cleaning apparatus for flush toilets according to claim 7 is characterized in that the shape of the acid supply / drain hole is circular.
The sterilization / cleaning apparatus for flush toilets according to claim 8 is characterized in that the diameter of the acid supply / drain holes is twice the diameter of the alkali supply / drain holes.
The sterilization / cleaning apparatus for flush toilets according to claim 9 is characterized in that the area of the acid supply / drain holes is four times the area of the alkali supply / drain holes.
The sterilization / cleaning apparatus for flush toilets according to claim 10 is characterized in that a chlorine gas discharge unit for collecting chlorine gas in the plate-shaped vertical partition and discharging it to an alkaline electrolytic cell is provided.
The sterilization / cleaning apparatus for flush toilets according to claim 11 comprises a bowl-like chlorine gas collecting plate for collecting chlorine gas by the chlorine gas discharge part, and a chlorine gas vent for discharging the chlorine gas to an alkaline electrolytic cell. It is characterized by that.
The sterilization / cleaning apparatus for flush toilets according to claim 12 is characterized in that the electrolytic bath, the auxiliary bath, and the outer walls of the acid and alkaline water supply / drainage pipes are integrally formed.
The sterilization / cleaning apparatus for flush toilets according to claim 13 is characterized in that the shape of the sterilization / cleaning apparatus for flush toilets is a rectangular parallelepiped.
The flush toilet sterilization / cleaning apparatus according to claim 14 is characterized in that the flush toilet sterilization / cleaning apparatus communicates with a salt unit through a communication pipe.
The flush toilet sterilization / washing apparatus according to claim 15 is a container in which the salt unit stores a saturated salt solution, and the container is provided with a control circuit timer and a submersible pump. To do.

  The sterilization / cleaning apparatus for flush toilets of the present invention includes an acid supply / drain pipe having an H-shaped internal space in the acid electrolysis tank, so that the air present in the H-shaped internal space can supply tap water. After stopping, the liquid in the electrolytic cell and the liquid in the water storage tank can be reliably prevented from flowing in and out through the water supply / drainage pipe. And, by dividing the internal space of the flush toilet sterilization / cleaning device into two vertically with an intermediate plate having a communication hole, an H-shaped internal space can be easily formed, and tap water can be supplied. It is easy to design so that the water level of the water supply / drainage pipe after being stopped is below the communication hole.

  In addition, the acid water supply / drain hole diameter is larger than that of the alkali water supply / drain hole, so that when using the toilet, acidic water containing sterilizing components can be quickly discharged into the water storage tank and the toilet can be sterilized. Since the alkaline water is gradually discharged into the tap water in the water storage tank, the water storage tank can be cleaned. If the hole diameter of the acid water supply / drain hole is designed to be twice the hole diameter of the alkali water supply / drain hole, or the area of the acid water supply / drain hole is four times the area of the alkali water supply / drain hole, While sterilizing the toilet, the water storage tank can be sterilized and washed with washing water.

  Furthermore, since the sterilization / washing device for flush toilets is built in the water storage tank of the flush toilet, the acidic water and alkaline water generated in the electrolyzer are used by the acidic water containing sterilizing components when the toilet is used. While the sterilization is performed, the alkaline water discharged to the water storage tank T can perform the sterilization action as well as the cleaning action of the water storage tank, so that the water circulation portion of the flush toilet can always be kept clean. And since the sterilization / washing device for flush toilets consists of an electrolytic tank and an auxiliary tank, and the water supply / drainage pipe is installed in the electrolytic tank, the size of the sterilization / washing device for flush toilets can be reduced. Assembling is easy.

And, in order to supply and drain the acidic water and alkaline water generated in the electrolytic cell, sterilization of toilets and sterilization / washing of water storage tanks can be performed only with water supply / drainage pipes with different flow rates without using devices such as electromagnetic valves and pumps. As a result, manufacturing costs can be greatly reduced.
The sterilization / cleaning apparatus for flush toilets of the present invention has an electrolytic tank, an auxiliary tank, and an outer wall of an acid supply / drain pipe formed integrally, and since the shape thereof is a rectangular parallelepiped, it can be greatly reduced in size and assembled. Work is not required and productivity is improved.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the best embodiment of a sterilization / washing apparatus for a flush toilet according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a front longitudinal sectional view of a water storage tank T having a built-in sterilization / cleaning device EQ for flush toilets (hereinafter referred to as “sterilization / cleaning device EQ”).
As shown in FIG. 1, the sterilization / cleaning apparatus EQ of the present invention is formed in a rectangular parallelepiped structure and is built in a water storage tank T of a flush toilet, and is held by a support member S provided in the water storage tank T. Yes. A float valve F is sealed at the center of the bottom wall of the water storage tank T so as not to release the water of the water storage tank T, and the float valve is operated via a chain by operating a drain lever L provided on the side wall of the water storage tank T. F rises upward and discharges water to the toilet. Since the structure of parts such as floating balls and ball taps is the same as that of a conventional flush toilet, description thereof is omitted.

FIG. 2 is a conceptual diagram showing a state in which acidic water and alkaline water generated by electrolyzing a saturated electrolyte solution diluted with tap water are stored in the sterilization / cleaning apparatus EQ, and a front view with the front wall removed. A longitudinal sectional view is shown.
The sterilizing / cleaning apparatus EQ is manufactured by molding a resin having acid resistance and alkali resistance. A partition wall of the diaphragm 3 and a vertical partition wall 32 made of a vertical plate provided at the upper end of the diaphragm 3 are provided at a position approximately half the width of the sterilization / cleaning apparatus EQ. The electrolyte is anode electrode 11 on the right side of the diaphragm 2. An acid auxiliary tank E1 for storing acidic water electrolyzed in (1) and an alkali auxiliary tank E2 for storing alkaline water whose electrolyte is electrolyzed at the cathode electrode 12 are provided on the left side.
In this way, a system in which a partition wall 2 is provided between the anode electrode 11 and the cathode electrode 12 to generate acidic water and alkaline water is called a diaphragm membrane electrolysis method.

An auxiliary tank A for temporarily storing a saturated electrolyte solution is provided on the electrolytic tank E, and a horizontal partition wall 31 made of a horizontal plate is provided between the electrolytic tank E and the auxiliary tank A. Communication holes are provided, and the two communication holes are holes through which the saturated electrolyte solution and tap water flow between the electrolytic cell E and the auxiliary tank A.
As shown in FIG. 2, the water supply / drainage pipe P having an H-shaped inner space has a rectangular parallelepiped outer wall p and is installed in the left and right side wall plates of the electrolytic cell E. You may install in a wall board or a back wall board, and may install in an independent position, without installing in a left-right side wall board or a front back wall board.
In addition, although the shape of the outer wall p is a rectangular parallelepiped as an example of the embodiment of the present invention, the present invention is not limited thereto, and may be a shape such as a cube or a cylinder.

The bottom wall of the sterilizing / cleaning apparatus EQ is provided with an acid water supply / drain hole 41 for acidic water and an alkali water supply / drain hole 42 for alkaline water each having a circular shape communicating with the water supply / drain pipe P. It is important that the diameter of each of these is larger than that of the alkali water supply / drain hole 42 and that there is a difference in the size of the holes. Although the said water supply / drain hole 4 showed as an example what was provided in the bottom wall of sterilization / washing | cleaning apparatus EQ, although you may provide in the position below the front-and-back wall or right-and-left side wall of sterilization / washing | cleaning apparatus EQ, Most preferably, the position is provided at the position of the upper surface of the bottom wall.
The upper wall of the sterilization / cleaning device EQ is provided with at least two air inlets in order to keep the internal pressure at atmospheric pressure when the tap water stored therein is discharged. Yes.

  Next, as shown in FIG. 2, the water supply / drainage pipe P is provided with an intermediate plate P ′ in the middle of the lateral width of the outer wall p, and the internal space of the water supply / drainage pipe P is liquidated by the intermediate plate P ′. (Tap water, acidic water or alkaline water) is a room where water flows in and out through the water supply / drain hole 4, and the liquid is in the middle between the water supply / drain room PA and the electrolytic cell E, and the liquid flows out to both. It is divided into an intermediate room PB which is a room to enter, and an outflow / inflow hole P4 through which liquid flows in / out is provided at a lower position. As shown in FIG. 2, it can be seen that the cross-sectional structure of the internal space of the water supply / drainage pipe P is formed in an H shape.

The intermediate plate P ′ is provided with a rectangular communication hole P3 in the vertical direction in the middle of the vertical direction. The intermediate plate P ′ above the position of the communication hole P3 is defined as the upper intermediate plate P′1 and the lower intermediate plate P ′. The intermediate plate P ′ is referred to as a lower intermediate plate P ′ 2, and the space portion above the position of the communication hole P 3 is referred to as an upper room PC, and the space portion below that position is referred to as a lower room PD. That is, the upper room PC means a space part above the water supply / drainage room PA and the intermediate room PB, and the lower room PD means a space part below the water supply / drainage room PA and the intermediate room PB.
The function of the upper intermediate plate P′1 will be described in the following (3) Flow of tap water from the water storage tank T to the sterilization / washing device EQ (see paragraphs [0021] to [0022]).
As described above, the water supply / drainage pipe P includes the outer wall p, the intermediate plate P ′, the communication hole P3, the water supply / drainage hole 4 and the outflow / inflow hole P4.

隔膜２で仕切られたアルカリ補助槽Ｅ２側には、以下の電気分解反応によりタンパク質系汚れに洗浄効果を示すアルカリ性水が生成される。

By the way, the conceptual diagram of FIG. 2 shows a state in which the saturated electrolyte solution diluted with tap water is electrolyzed, and the acid auxiliary tank E1 side partitioned by the diaphragm 2 has a strong effect by the following electrolysis reaction. Hypochlorous acid HClO is produced, which shows a good sterilization effect.

On the side of the auxiliary alkali tub E2 partitioned by the diaphragm 2, alkaline water showing a cleaning effect on protein soil is generated by the following electrolysis reaction.

  Next, based on FIG. 1, (1) the flow of tap water and acidic water from the water storage tank T to the toilet, and based on FIG. 2 (2) acidic water and alkaline water from the sterilization / washing device EQ to the water storage tank T. The flow of water and (3) the flow of tap water from the water storage tank T to the sterilization / washing device EQ will be described in detail below.

(1) Flow of tap water and acidic water from the storage tank T to the toilet As shown in FIG. 1, when the user operates the drain lever L, the float valve F on the bottom wall of the storage tank T is lifted upward. The tap water in the open water storage tank T is discharged, and then the floating ball U descends, closes and closes the discharge port, and the tap water flows into the water storage tank T from the faucet at the top of the water storage tank T. The drainage time from the opening of the float valve to the blockage is several seconds, for example, about 3 seconds, whereas the water supply time until the water level rises after the blockage and the ball tap valve is closed to stop the water supply to the water storage tank T is , About 45 seconds, which is about 15 times the drainage time until the blockade. The water level drops rapidly because the amount of tap water discharged during drainage is large, whereas the water level rises slowly because the amount of tap water supplied during water supply is small. The structure and operation of the drain lever L, the float valve F, and the float U are the same as the structure and operation of the water storage tank T that has been conventionally used.

  When the water level of the tap water is lowered to the bottom position of the sterilization / washing device EQ by operating the drain lever L, the acidic water in the acid electrolysis tank E1 flows out from the acid feed / drain hole 41 having a large hole diameter and is mixed into the tap water. Acidic water that has been acidified and diluted in a short time is drained into the toilet. During that short period of time, a very small amount of alkaline water in the alkaline electrolysis tank E2 of the sterilization / cleaning apparatus EQ flows out from the alkaline water supply / drain hole 42 having a small pore diameter, but most of the alkaline water remains in the alkaline electrolysis tank. It remains in E2.

(2) Flow of alkaline water from the sterilization / washing device EQ to the water storage tank T While the water level supplied by the blockage of the floating ball U rises to the bottom position of the sterilization / washing device EQ, the sterilization / washing device The state of the flow of alkaline water from the EQ to the water storage tank T will be described below.
While the diluted acidic water is discharged to the toilet, the float valve F descends to close the discharge port, and tap water flows into the storage tank T from the upper faucet of the storage tank T. However, after the open float valve F is closed in a short time, the water level of the water storage tank T continues to rise slowly due to the inflow of tap water. While the water level continues to rise slowly, alkaline water continues to flow out of the alkaline water supply / drain hole 42 having a small hole diameter and is mixed with the tap water flowing into the water storage tank T and diluted. The inside of the water storage tank T in which the alkaline water is contaminated is washed. By the time the water level reaches the bottom of the sterilization / cleaning device EQ, the alkaline water in the alkaline electrolysis tank E2 has already flowed out.

(3) Flow of tap water from the water storage tank T to the sterilization / washing device EQ The water level of the tap water rises from the bottom position of the sterilization / washing device EQ, reaches the water level 15 where the tap water is stopped, and is saturated. The state of the tap water flow from the water storage tank T to the water supply / drainage pipe P while the electrolytic aqueous solution flows into the auxiliary tank A through the communication pipe will be described below.
FIG. 3 is a diagram illustrating a state of tap water flow to the water supply / drainage pipe P from when the water level slightly rises from the position of the bottom until the water storage tank T reaches the water level 15 and starts electrolysis. FIG.

Fig.3 (a) is a figure which shows the state of the flow of a tap water when the water level of a tap water rises slightly above the position of the lower end part of the said communicating hole P3.
When the water level rises from the bottom position of the sterilization / cleaning device EQ, tap water flows into the lower room PD of the water supply / drainage room PA from the water supply / drainage hole 4 along with the rise of the water level, and at the lower end of the communication hole P3. When it reaches the position (same as the position of the upper end of the lower intermediate plate P′2) and exceeds that position, tap water flows into the lower room PD of the intermediate room PB and flows downward, and is electrolyzed from the outflow / inflow hole P4. It flows out to the tank E side. When the water level in the electrolytic cell E rises to the position of the upper end of the outflow / inflow hole P4, as shown in FIG. 3A, the air present in the H-shaped internal space, that is, the water supply / drainage chamber PA. The water level of the electrolytic cell E rises in a state where the air existing in the internal space of the upper room PC and the intermediate room PB is confined.

FIG.3 (b) is a figure which shows the state of the flow which has risen to the position of the water level 15 where the said tap water stops.
The water level in the intermediate room PB is compressed by water pressure as the water level in the water storage tank T rises, so that the air existing in the upper room PC of the water supply / drainage room PA and the internal space of the intermediate room PB is compressed by water pressure. Although it gradually rises from the position of the water level, the tap water continues to flow in a state where the water level of the intermediate room PB is lower than the water level of the water supply / drainage room PA. The flow of tap water stops when it reaches the level 15 where the tap water is stopped.

FIG.3 (c) is a figure which shows the change of the water level of the said intermediate | middle room PB after the supply of tap water stops, and the water level of the said water supply / drainage room PA.
By stopping the supply of tap water, the tap water in the water supply / drainage room PA and the intermediate room PB keeps the energy at that position in equilibrium, so that the tap water from the electrolysis tank E passes through the outflow inlet / outlet P4 in the intermediate room PB. It flows into the lower room PD and pushes up the water level, while the tap water in the lower room PD of the water supply / drainage room PA flows out through the water supply / drainage hole 4 to the water storage tank T and pushes down the water level. The water level of both is determined by the position where it is kept. The position is below the position of the lower end of the communication hole P3, and the air in the H-shaped internal space flows in and out of the liquid in the electrolytic cell E and the liquid in the water storage tank T through the water supply / drainage pipe P. To prevent you from doing.

  If the upper intermediate plate P′1 is not provided on the upper wall of the water supply / drainage pipe P, the air in the upper space of the water supply / drainage pipe P is combined with the tap water as described in Patent Document 4. By flowing out into the electrolytic cell E, there is no air to prevent liquid (acidic water, alkaline water and tap water) from flowing in and out, and after the tap water supply is stopped, The decomposed acidic water and alkaline water flow out through the water supply and drainage holes, and tap water flows in. The acidic water and alkaline water maintained at an appropriate concentration in the electrolytic cell are diluted with tap water, and The acid water that has flowed out into the water storage tank T and has strong sterilizing effect and the alkaline water that exhibits the cleaning effect cannot be obtained.

As described above, since the upper intermediate plate P′1 is provided on the upper wall of the water supply / drainage pipe P, air remains in the H-shaped internal space, but the potential energy of the tap water is kept in equilibrium. A method of determining the position to be determined will be described below.
First, as shown in FIG. 3A, the volume of the internal space of the intermediate room PB and the upper room PC of the water supply / drainage room PA is calculated, and then the obtained volume is calculated with respect to the water supply / drainage pipe P. A value (H ′) obtained by dividing P by the area obtained by horizontally cutting P is obtained. Then, the water supply / drainage pipe P is set such that the height (h) from the position of the lower end of the communication hole P3 (the position of the upper end of the lower intermediate plate P′2) to the upper wall is smaller than the value of H ′. The position where the lower end of the communication hole is provided is designed.

  The position (h) of the lower end portion of the communication hole designed as described above is shown in FIG. 3 (c). The height (H) from the position of the water level to the upper wall of the water supply / drainage pipe P is as described above. This value is slightly smaller than the value of H ′, and is small because air remaining in the H-shaped internal space is compressed by water pressure. Therefore, as a matter of course, it is necessary to determine the position (h) of the lower end portion of the through hole in consideration of the fact that H is slightly smaller than the value of H ′.

Next, a flow in which acidic water and alkaline water are discharged from the electrolytic cell E to the water storage tank T when the tap water in the water storage tank T is discharged will be described below.
First, a process until a saturated aqueous solution of salt is generated in an electrolytic cell E by electrolysis into acidic water and alkaline water will be described. Although not shown, a salt unit for storing a saturated aqueous solution of salt is provided outside or away from the water storage tank T, and the saturated aqueous solution of salt is supplied to the auxiliary tank A through the connection pipe 5 by a submersible pump. Is done. As shown in FIG. 2, the saturated aqueous solution supplied to the auxiliary tank A flows into the acid and alkaline electrolytic tanks E1 and E2 through the communication hole of the horizontal partition wall 31 formed of a horizontal plate. The saturated aqueous solution is diluted with tap water while flowing in, and the diluted saturated aqueous solution generates acidic water and alkaline water by electrolysis in the electrolytic cell E.

As described above, when the user operates the drain lever L, the tap water in the water storage tank T is discharged to the toilet, the tap water level 15 is lowered, and reaches the position of the bottom of the sterilization / washing device EQ. When the water level reaches the bottom position, as shown in FIG. 3C, the tap water in the lower room PD of the water supply / drainage room PA flows down to the water storage tank T through the water supply / drainage hole 4, and then the intermediate room PB. The water level of the electrolyzed water (acidic water and alkaline water) in the lower chamber PD of the water chamber rises, and the electrolyzed water flows down to the water storage tank T through the communication hole P3.
By the way, since the hole diameter of the acid supply / drain hole 41 is larger than the hole diameter of the alkali supply / drain hole 42, the discharge flow rate of acidic water is much larger than that of alkaline water. As described above, the alkaline water discharged from the apparatus EQ remains in the sterilization / cleaning apparatus EQ.
In addition, although the shape of the water supply / drain hole was described as circular, it is not necessary to limit to a circular shape, and the shape may be a quadrangle, a triangle, an ellipse, or the like. However, when it is not circular, it is important that the area of the acid supply / drain holes is larger than the area of the alkali supply / drain holes.

FIG. 4 is a front longitudinal sectional view of the sterilization / cleaning apparatus according to one embodiment, with the front side wall removed.
4 differs from the structure of FIG. 3 described above in that the structure of FIG. 4 includes acid and alkali auxiliary tanks A1 and A2, a float switch 7, a chlorine gas discharge unit 6, and a crank partition wall 31. 3 is different in that it does not include those structures, and the other structures are all the same. Therefore, the reference numerals used in the structure in FIG. 3 are given to the same members in FIG.

Acidic water having a bactericidal action is required in large quantities when discharged into the toilet, whereas alkaline water having a cleaning action does not have to be discharged into the toilet, so the volume of the acid electrolyzer E1 is that of the alkaline electrolyzer E2. Designed larger than that. Therefore, the diaphragm 2 is arranged at a position closer to the left side than the center position, and the water supply / drainage pipe P is designed such that the lateral width of the acid supply / drainage pipe P1 is larger than that of the alkali water supply / drainage pipe P2.
A chlorine gas discharge part 6 is provided along the upper side of the diaphragm 2. The chlorine gas discharge unit 6 includes a bowl-shaped chlorine gas collecting plate 61 that collects chlorine gas generated by electrolysis in the acid electrolysis tank E1, and a chlorine gas vent 62 that discharges the chlorine gas to the alkaline electrolysis tank E2. It is configured.

となり、塩素ガスはアルカリ側で次亜塩素酸イオンと無害の塩化物イオンに変化する。
アルカリ電解槽Ｅ２で電気分解により生成された強アルカリ性水は、前記塩素ガス通気口６２より逆流することを若干許し、酸電解槽Ｅ１のｐＨ値が極端に酸性側によらないようにすることで、次亜塩素酸の濃度を高く保つことができる。 By discharging chlorine gas to the alkaline electrolytic cell E2,

Thus, chlorine gas changes into hypochlorite ions and harmless chloride ions on the alkali side.
Strong alkaline water generated by electrolysis in the alkaline electrolyzer E2 is allowed to flow slightly back from the chlorine gas vent 62, so that the pH value of the acid electrolyzer E1 does not depend on the extremely acidic side. The concentration of hypochlorous acid can be kept high.

FIG. 5 is a cross-sectional plan view taken along line AA of FIG.
An intermediate plate P ′ is provided in the middle of the acid supply / drainage pipe P1 on the right side of the diaphragm 2, and a circular acid supply / drainage hole is provided on the right side thereof. Similarly, the alkali supply / drainage pipe P2 on the left side of the diaphragm 2 is provided. An intermediate plate P ′ is provided at an intermediate position, a circular alkali feed / drain hole is provided on the left side, and an anode electrode and a cathode electrode are provided behind the acid and alkali feed / drain pipes P1, P2.

Here, the process until the saturated aqueous solution of salt generates acidic water and alkaline water by electrolysis in the electrolytic cell E will be described with reference to FIG.
First, when the tap water level rises and reaches the water level 15, the float switch 7 is activated by detecting the water level to stop the tap water, and the submersible pump 82 is driven so that the saturated aqueous salt solution is connected to the pipe. 5, the saturated aqueous solution supplied to the acid auxiliary tank A1 passes through the communication holes of the crank partition wall 31 and the vertical partition wall 32 made of a crank-shaped plate, as shown in FIG. Flow into the acid and alkaline electrolytic cells E1, E2. The saturated aqueous solution is diluted with tap water during inflow, and the diluted saturated aqueous solution generates acidic water and alkaline water by electrolysis in the acid and alkaline electrolytic cells E1 and E2.

FIG. 6 is an explanatory diagram showing the flow of the saturated solution from the salt unit 8 storing the salt saturated solution to the sterilization / cleaning apparatus EQ.
The salt unit 8 is a container for storing a saturated solution of salt, and the container is provided with a control circuit timer 81 and a submersible pump 82, and may be provided outside or away from the water tank T. The submersible pump 82 is driven by the operation of the float switch 15, and an appropriate amount of a saturated aqueous solution of salt is supplied to the acid auxiliary tank A <b> 1 through the connection pipe 5. For this reason, the water level of the salt unit 8 is lowered, but the liquid of the sterilization / cleaning device EQ is kept constant through the communication pipe 5 by the principle of siphon.

FIG. 7 is a longitudinal and transverse sectional view showing one embodiment of the water supply / drainage pipe P of the sterilization / cleaning apparatus EQ. Although the reference numerals are not shown for the respective members in FIG. 7, the following examples will be described on the assumption that the same reference numerals as those shown in FIG. 2, FIG. 4 and FIG.
The width, height and depth of the sterilizing / cleaning device EQ are very small, such as 82 mm, 145 mm and 34 mm, and the position of the water level after stopping the supply of tap water as shown in FIG. If so, it can be easily installed at any location of the water storage tank T.
FIG. 7 is a diagram showing the sizes of the acid supply / drainage pipe P1 and the alkali supply / drainage pipe P2.
As described above, the water supply / drainage pipe P includes the outer wall p, the intermediate plate P ′ having the communication hole P3, the water supply / drainage hole 4 leading to the water storage tank T, and the outflow / inflow hole P4 leading to the acid and alkaline electrolytic cells E1, E2. It is. The thickness of the outer wall p and the intermediate plate P ′ is 3 mm. The size of the H-shaped inner space of the acid supply / drainage pipe formed by the outer wall p and the intermediate plate P ′ is as follows: width, height and depth. 26 mm, 50 mm, and 17.5 mm, the height of the communication hole P3 is 10 mm, and the diameter of the water supply / drainage hole 4 and the height of the outflow / inflow hole P4 are 6 mm and 5 mm. Similarly, the size of the H-shaped internal space of the alkaline water supply / drainage pipe is 21 mm, 50 mm, 15 mm in width, height, and depth, the height of the communication hole P3 is 10 mm, and the diameter of the water supply / drainage hole 4 And the height of the inflow / outflow hole P4 is 3 mm and 5 mm.

Next, the water level in the water supply / drainage pipe after the supply of tap water is stopped will be determined from the size of the H-shaped internal space shown in the above embodiment.
First, how to obtain the water level in the acid supply / drainage pipe P1 will be described. As shown by the H-shaped internal space of the acid supply / drain pipe P1 in FIG. 3A, air occupies a space other than that occupied by tap water in the H-shaped internal space. Find the size of the space occupied by.
Therefore, first, (1) the upper room PC of the upper water supply / drainage room PA is obtained from the lower end of the communication hole P3, and then (2) the upper intermediate room PB is obtained from the upper end of the outflow / inflow hole P4. If the obtained values are summed, the size of the space occupied by the air can be calculated. In addition, since the ratio for which the space which the communication hole P3 occupies with respect to the space which the said air occupies is very small, it shall not obtain | require. After that, (3) by calculating the area of the space occupied by air in the cross-sectional area of the water supply / drainage pipe P and dividing the calculated size of the space occupied by the air by the area of the space, the upper wall of the water supply / drainage pipe P Therefore, if the distance from the upper wall to the water level is subtracted from the distance to the upper wall of the water supply / drainage pipe P, the water level in the water supply / drainage pipe after the supply of the tap water is stopped is obtained. can get.

Since the value of (1) is 3306.25 mm ³ and the value of (2) is 5951.25 mm ³ , the size of the space occupied by the air is 5951.25 mm ³ . Since the value of (3) is 264.5 mm ² , the distance to the upper wall of the water supply / drainage pipe P is 35 mm. Therefore, if the distance from the upper wall of the water supply / drainage pipe P, 50 mm, the distance from the upper wall to the water level, 35 mm, is subtracted, the water level in the water supply / drainage pipe is 15 mm.
Similarly, the water level in the alkali water supply / drainage pipe P2 is obtained.
Since the value of (1) is 2025 mm ³ and the value of (2) is 4050 mm ³ , the size of the space occupied by the air is 6075 mm ³ . Since the value of (3) is 162 mm ² , the distance to the upper wall of the water supply / drainage pipe P is 37.5 mm. Accordingly, if the distance from the upper wall of the water supply / drainage pipe P, the distance from 50 mm to the water level, 37.5 mm is subtracted, the water level in the water supply / drainage pipe is 12.5 mm.

  As described above, the water level 15 mm in the acid supply / drainage pipe P1 and the water level 12.5mm in the alkali supply / drainage pipe P2 after the supply of tap water is stopped, the lower end 25mm of the communication hole P3 of the acid supply / drainage pipe P1. It can be seen that it is 10 mm below and 12.25 mm below the position 25 mm at the lower end of the communication hole P3 of the alkali water supply / drainage pipe P2, that is, half the height of the lower intermediate plate P′2. For this reason, the water level in the water supply / drainage pipe P may be designed within a range of 10 mm from a position half the height of the lower intermediate plate P′2 from the lower end of the communication hole P3.

  The shape of the water supply / drain hole 4 in the above embodiment is circular, and the hole diameter of the acid water supply / drain hole 41 is 3 mm, whereas the hole diameter of the alkali water supply / drain hole 42 is 3 mm. You can see that it ’s big. However, as described above, the shape of the water supply / drainage hole 4 may be a quadrangle, a triangle, an ellipse, or the like. If the shape is not circular, the area of the water supply / drainage hole is important. The fact that it is twice as large as the hole diameter means that it is four times larger in terms of area. Therefore, when the water supply / drainage hole 4 having a shape other than a circle, such as a rectangle, a triangle, or an ellipse is used, it is important to design the acid supply / drainage hole area to be four times the area of the alkali water supply / drainage hole.

It is a front longitudinal cross-sectional view of the water storage tank which incorporated the sterilization and washing | cleaning apparatus. It is a conceptual diagram which shows the state by which the acidic water and alkaline water which were produced | generated by electrolyzing the saturated electrolyte solution diluted with the tap water were stored by the disinfection and washing | cleaning apparatus EQ. It is explanatory drawing which shows the state of the flow of the tap water to the water supply / drainage pipe P from when a water level raises slightly from the position of the said bottom until the water storage tank T reaches | attains the water level 15 and starts electrolysis. It is the front longitudinal cross-sectional view which removed the front side wall of the sterilization / washing | cleaning apparatus. It is the cross-sectional top view cut | disconnected to the cross section from the AA line of FIG. It is explanatory drawing which shows the flow of the saturated solution of a salt from the salt unit 8 to the disinfection and washing | cleaning apparatus EQ. It is the vertical and cross-sectional view which shows one Example of the water supply / drain pipe P of the sterilization and washing | cleaning apparatus EQ.

Explanation of symbols

EQ ... Sterilization / cleaning device T ... Water storage tank E ... Electrolysis tank E1 ... Acid electrolysis tank E2 ... Alkaline electrolysis tank A ... Auxiliary tank A1 ... Acid auxiliary tank A2 ... Alkaline auxiliary tank P ... Water supply / drainage pipe P1 ... Acid supply / drainage pipe P2 ... Alkaline Water supply / drainage pipe p ... Outer wall PA ... Water supply / drainage room PB ... Intermediate room PC ... Upper room PD ... Lower room P '... Intermediate plate P'1 ... Upper intermediate plate P'2 ... Lower intermediate plate P3 ... Communication hole P4 ... Outflow / inlet 1 ... electrode 11 ... anode electrode 12 ... cathode electrode 15 ... water level line 2 ... diaphragm 3 ... partition 31 ... horizontal partition (crank partition)
32 ... Vertical partition wall 4 ... Water supply / drain hole 41 ... Acid supply / drain hole 42 ... Alkaline water supply / drain hole 5 ... Communication pipe 6 ... Chlorine gas discharge part 61 ... Chlorine gas collector plate 62 ... Chlorine gas vent 7 ... Float switch 8 ... Salt unit 81 ... Control circuit timer 82 ... Submersible pump

Claims (15)

A sterilization / cleaning device for flush toilets that generates acidic water and alkaline water by a diaphragm membrane electrolysis method,
The sterilization / washing device for flush toilets is built in a water storage tank of flush toilets, and an acid electrolytic tank for generating acidic water from an electrolytic solution and an alkaline electrolytic tank for generating alkaline water are provided side by side through a plate-shaped vertical partition. An electrolytic tank composed of a diaphragm provided at the lower end of the vertical partition; an auxiliary tank for temporarily storing a saturated electrolyte solution thereon; and a plate-shaped horizontal partition between the electrolytic tank and the auxiliary tank. And an acid supply / drain pipe having an outer wall forming an H-shaped inner space in the acid electrolysis tank, and an alkali supply / drainage pipe having an outer wall forming an H-shaped inner space in the alkaline electrolysis tank And an acid and alkaline water supply / drainage hole communicating with the water storage tank is provided below the acid and alkaline water supply / drainage pipe.   2. The outer wall forming the H-shaped inner space is formed of an intermediate plate having a communication hole for vertically dividing the space of the acid and alkali water supply / drainage pipes into two to communicate with each other. Sterilization / cleaning equipment for flush toilets as described in 1.   The sterilization / washing device for flush toilets according to claim 2, wherein the water level of the water supply / drainage pipe after the stop of tap water supply is below the communication hole.   The sterilization / washing device for flush toilets according to claim 3, wherein the water level of the water supply / drainage pipe is in a range of 10 mm from a position half the height of the lower intermediate plate from the lower end of the communication hole.   The water washing according to claim 1 or 2, wherein the water supply / drainage pipe comprises the outer wall, an intermediate plate having the communication hole, a water supply / drainage hole communicating with the water storage tank, and an inflow / outflow hole communicating with the acid and alkaline electrolyzer. Toilet sterilization and cleaning equipment.   The sterilization / washing device for flush toilet according to claim 1, wherein the area of the acid supply / drain hole is larger than that of the alkali supply / drain hole.   The sterilization / washing device for flush toilet according to claim 6, wherein the shape of the acid supply / drainage hole is circular.   The sterilization / washing device for flush toilet according to claim 7, wherein the diameter of the acid supply / drain hole is twice the diameter of the alkali supply / drain hole.   The area of the acid supply / drain hole is four times as large as the area of the alkali supply / drain hole.   The sterilization / cleaning apparatus for flush toilets according to claim 1, wherein a chlorine gas discharge unit for collecting chlorine gas in the plate-shaped vertical partition and discharging it to an alkaline electrolytic cell is provided.   11. The flush toilet according to claim 10, wherein the chlorine gas discharge unit comprises a bowl-shaped chlorine gas collecting plate for collecting chlorine gas and a chlorine gas vent for discharging the chlorine gas to an alkaline electrolytic cell. Sterilization / cleaning equipment.   The sterilization / washing device for flush toilet according to claim 1, wherein the electrolytic bath, the auxiliary bath, and the outer wall of the acid and alkali water supply / drainage pipe are integrally formed.   The sterilization / washing device for flush toilets according to claim 12, wherein the shape of the sterilization / washing device for flush toilets is a rectangular parallelepiped.   The sterilization / washing device for flush toilets according to claim 1, wherein the sterilization / washing device for flush toilets communicates with a salt unit through a communication pipe.   The sterilization / washing device for flush toilet according to claim 14, wherein the salt unit is a container for storing a saturated solution of salt, and the container is provided with a control circuit timer and a submersible pump. .

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