JPH0439901Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a hot water tank in which the flushing water supplied to the flushing nozzle of a warm water flushing toilet is heated to a predetermined temperature using a sheathed heater, etc., and then stored. It is related to.

[Conventional technology]

A conventional hot water tank of this type is shown in FIG. That is, makeup water supplied from the outlet 3 of the supply pipe 2 that opens on the bottom wall 1a side of the tank 1 is heated by the sheathed heater 4 installed in the tank 1, and the hot water obtained by heating is heated. is taken out from an inlet 6 of a discharge pipe 5 that opens on the side of the upper wall 1b inside the tank 1, and is supplied to a cleaning nozzle (not shown) of the toilet bowl cleaning device. The thermostat 7 detects the temperature of the water stored in the tank and controls the sheathed heater 4 to adjust the temperature of the hot water taken out from the discharge pipe 5 within a predetermined range.

[Problem that the invention attempts to solve]

However, the amount of water in the hot water tank 1 is approximately 1 to 1.5 for people who use a large amount of water for one private wash.
The design is based on the assumption that the amount of water stored is 2 to 3 times the amount of water normally used. For this reason, the height dimension of the hot water tank 1 has increased, and a considerable temperature difference has occurred in the stored water between the bottom wall 1a side and the top wall 1b side of the hot water tank 1.
This temperature difference is because the heated make-up water expands in volume and rises, and collects on the top wall 1b side, so the temperature of the water stored on the top wall 1b side is the highest, and the temperature of the water stored on the bottom wall 1a side is the lowest. be. This temperature difference is from 8℃ to 12℃
It may lead to. Therefore, in the private cleaning device,
Discharging hot water over 43°C as cleaning water is hot and uncomfortable, and when it exceeds 50°C there is a risk of burns. For this reason, in the conventional hot water tank 1, the temperature of the water stored in the tank is controlled so that the temperature of the hot water stored on the tank upper wall 1b side that is first discharged from the cleaning nozzle is 43°C or less. Ta.

However, as is clear from the graph showing the temperature characteristics of cleaning water in FIG. 3, in the conventional hot water tank 1, the highest temperature stored water stored on the tank top wall 1b side is discharged at the beginning of cleaning, and thereafter The water stored in the lower part of the tank 1 is gradually discharged. Then, the temperature of the cleaning water gradually decreases. For this reason, the user feels the warmest at the beginning of cleaning, and gradually feels colder thereafter. In this way, in the conventional hot water tank 1,
Since the temperature of the washing water only decreases from the set temperature, the temperature decreases rapidly over a certain period of time, and the user feels a sudden temperature decrease, which is accompanied by discomfort. Note that the amount of cleaning water discharged into the tank 1 is replenished from the supply pipe 2.

[Purpose of invention]

The present invention has been developed to improve and eliminate the above-mentioned conventional problems.The present invention is designed so that the peak temperature of the washing water discharged from the washing nozzle comes after a predetermined period of time has elapsed from the start of washing, and the temperature of the washing water is It is an object of the present invention to provide a hot water tank of this kind that prevents a significant drop in water.

[Means for solving problems]

The means of the present invention for solving the above problems are as follows:
In a hot water tank that heats the flushing water supplied to the flushing nozzle of a warm water flushing toilet to warm water at a predetermined temperature and stores it, a horizontal partition wall with water holes drilled inside the tank is installed to move the inside of the tank up and down. Divided into three or more chambers by direction, an inlet for make-up water is opened in the uppermost chamber where the temperature of the stored water is highest, and an outlet for the stored water is opened in the lowermost chamber where the temperature of the stored water is the lowest. is open.

[Effect]

As is clear from the embodiment shown in FIG. 1 and FIG.
14 into three chambers A, B, and C. A make-up water inlet 15 is opened in the upper chamber A,
A discharge port 16 for stored water is opened in the lower chamber C. The thermostat 18 turns on the sheathed heater 17 so that the temperature of the lower chamber C reaches the set temperature.
OFF control. Room A has a capacity of 1800 c.c.
In the hot water tank 11 of the embodiment in which chambers B and C have the same size, when the temperature of the stored water in the lower chamber C is controlled to be 40°C, the temperature of the stored water in the intermediate chamber B is is 46°C, and the temperature of the stored water in upper chamber A is 52°C.

After the water stored in the lower chamber C is discharged from the cleaning nozzle, the water stored in the intermediate chamber B is discharged.
The temperature of the cleaning water discharged from the cleaning nozzle is 40℃.
It starts to rise slowly. The stored water in each chamber A, B sequentially moves to the lower chambers B, C via the water passage hole 12. The stored water in each of these chambers is sequentially deprived of heat by the newly supplied makeup water, and eventually passes its peak and gradually decreases in temperature.

As a result, the temperature of the cleaning water discharged from the cleaning nozzle reaches a peak at approximately the halfway point from the start of private area cleaning to the end of private area cleaning, as shown by the solid line in Figure 3, and the cleaning water is discharged without sudden temperature changes. It is possible to use it comfortably.

The configuration of the present invention will be explained below based on the embodiments shown in the drawings.

〔Example〕

1 and 2 show an embodiment of a hot water tank to which the present invention is applied. FIG. 1 is a longitudinal sectional view of the hot water tank 11, and FIG.
1 is a cross-sectional view of FIG. As shown in the figure, the hot water tank 11 has a partition wall 1 formed with a large number of water passage holes 12.
The room is vertically divided into A room, B room, and C room by 3 and 14. The capacity of the hot water tank 11 in this embodiment is 1800 c.c., and each chamber is divided into uniform sizes. An inlet 15 for supplying makeup water is opened in chamber A, which is the upper chamber.
Further, a discharge port 16 for supplying water stored in the tank to the cleaning nozzle 22 is opened in the C chamber, which is the lower chamber. Partition walls 13, 14 dividing each room
A sheathed heater 17 and a thermostat 18 are installed inside the tank passing through the tank. The thermostat 18 controls the sheathed heater 17 on and off so that the temperature of the water stored in the C room is 40°C. Under such temperature control, in an equilibrium state where the temperature of the stored water in each room is stable, the temperature of the stored water in room B is 46°C, and the temperature of the stored water in room A is 52°C.
It is ℃. Therefore, the temperature of the water stored in the tank can be set higher overall than in the conventional case, and the tank capacity can be reduced accordingly.

The inlet 15 is connected to a water supply pipe 19, etc., and a water supply connection valve 20 is disposed in the middle. Further, the discharge port 16 is connected to a cleaning nozzle 22 via a pump 21.

Next, the operation mode of the hot water tank 11 configured as described above will be explained.

First, in normal temperature control, when the temperature of the water stored in room C is controlled to 40°C, the temperature of the water stored in room B becomes 46°C, and the temperature of the water stored in room A becomes 52°C. It is assumed that local washing is started from such a state. Local cleaning is started by opening the water supply connection valve 20 and rotating the pump 21. First, the pump 21 discharges the water stored in the C chamber from the cleaning nozzle 22. With this discharge, the 46°C water stored in the B room sequentially flows into the C room through the water passage hole 12 of the partition wall 14, and the 52°C water stored in the A room sequentially flows into the C room through the partition wall 14. The water flows into the middle chamber B through 13 water holes 12. Therefore, the temperature of the stored water in the C room is a mixture of the 40° C. stored water and the 46° C. water, and the temperature of the stored water in the B room gradually increases by the amount of inflow of the stored water. On the other hand, in the case of room A, water from a water pipe or the like is supplied from the inlet 15 as make-up water by the amount discharged from the cleaning nozzle 22, and mixed with the stored water at a temperature of 52°C. Therefore, the temperature of the water stored in the A room gradually decreases. This temperature drop gradually moves to the B room and the C room.

Therefore, as shown in FIG. 3, the temperature of the cleaning water discharged from the cleaning nozzle 22 gradually increases from the temperature of the water stored in chamber C, which is initially discharged at 40°C, until the water stored in chamber B flows into chamber C. The amount increases by the amount that flows in, and the peak is delayed from the start of cleaning, as shown by the solid line in the figure. This peak time difference is affected by the temperature of the make-up water supplied from the water supply pipe 19 such as a water pipe, but if the temperature of the make-up water in the water supply pipe 19 is 25 degrees Celsius, it will be 21 degrees from the start of cleaning. Seconds later. In this case, the temperature of the washing water is 41°C even when the washing ends 39 seconds after the start of washing.
Therefore, the user does not notice much change in the temperature of the washing water from the start to the end of private washing. In short, when washing private parts, it is possible to minimize the temperature drop of the washing water from the start of washing to the end of washing.

On the other hand, in the case of a conventional 2500c.c. hot water tank, if the same water temperature is 25℃, the temperature of the washing water discharged at the beginning of private cleaning is about 43℃; The temperature is at its peak at the start of washing, and thereafter gradually decreases, reaching approximately 33.5°C after the end of washing, which is 39 seconds after the start of washing. this is,
The temperature was 7.5°C lower than in the example of the present invention, and the user felt that the washing water was cold during private part washing, which was accompanied by discomfort.

By the way, the present invention is not limited to the above-described embodiments, and can be modified as appropriate. for example,
The number of chambers defined by the hot water tank 11 may be four or more. In addition, a floating ball may be arranged at the inlet 15 to prevent heat from flowing out, and the inlet 15 may be blocked when the tank 11 is full of water. Furthermore, since the thermostat 18 can be configured to sense the temperature of the water stored in the C chamber and control it, it can be placed into the tank from the side wall of the C chamber without having to be placed through the partition walls 13 and 14. It is also possible to do so. In addition, the discharge port 16 can also be used as a water drain port when not in use for a long period of time to prevent stored water from freezing in cold regions.

[Effect of idea]

As explained above, in the present invention, the temperature change of the cleaning water discharged from the cleaning nozzle from the initial start of private cleaning to the end of cleaning can be controlled by the water stored in the lowest chamber being discharged. From the beginning of cleaning, that is, from the start of cleaning until the water stored in the intermediate chamber is discharged, it can be gradually increased until the water temperature reaches its peak midway through the end of cleaning, and the difference between the lower and upper limits of water temperature changes. It is possible to use it comfortably. In addition, by changing the number of chambers installed, it is possible to control the time from the start of cleaning when the temperature of the cleaning water reaches its peak. It is extremely easy to set the time during which hot water above the temperature is discharged. Furthermore, the water stored in the tank can be stored at a high temperature throughout, and the tank capacity can be reduced accordingly.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of a hot water tank showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the line X-X of Fig. 1, and Fig. 3 is a hot water tank to which the present invention is applied and a conventional hot water tank. FIG. 4 is a longitudinal cross-sectional view of a conventional hot water tank. 22...Cleaning nozzle, 11...Hot water tank, 1
2... Water holes, 13, 14... Partition walls, A to C...
...Chamber, 15...Inflow port, 16...Discharge port.

Claims (1)

[Scope of utility model registration request] In a hot water tank that heats the flushing water supplied to the flushing nozzle of a warm water flushing toilet to warm water at a predetermined temperature and stores it, a horizontal partition wall with water holes drilled inside the tank is installed to move the inside of the tank up and down. Divided into three or more chambers by direction, an inlet for make-up water is opened in the uppermost chamber where the temperature of the stored water is highest, and an outlet for the stored water is opened in the lowermost chamber where the temperature of the stored water is the lowest. A hot water tank for a hot water flush toilet bowl, characterized by having an opening.