JPS5851548Y2 - Tank water level control device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a tank water level control device.

By the way, in a tank that is equipped with a water boiling tank and has a structure that maintains a constant water level through automatic water supply, at the end of the day, the water that has reached a certain level is always left unused, resulting in a reduction in power consumption. It's wasted.

Therefore, the object of this invention is to provide a tank water level control device that does not have such drawbacks.

This idea will be explained below.

This invention relates to a device that receives liquid such as water, juice, coffee, etc. from a water supply port with a solenoid valve into a tank, warms the received liquid with a heater, and then releases it. A water level detection device is provided to detect the localization level and low level of the liquid, and the heater is cut off when the liquid water level is below the low level.

That is, as shown in FIGS. 1 and 2, a tank 1 receives water discharged from a water supply port 3 having a solenoid valve 2, and the received water 4 is kept at a constant temperature by a heater 5 and a thermoswitch 8. It is designed to be heated.

Further, the water (hot water) 4 in the tank 1 is discharged to a desired location from a discharge port 6, and the water level is detected by a float 7 serving as a water level detection device.

Therefore, the float 7 detects the constant water level A indicating the steady water level of the tank 1 and turns on/off the constant water level switch 10.
and a low water level switch 11 which turns on and off by releasing a predetermined low water level B which is higher than the residual water level C of the tank 1 and lower than the constant water level level A. In addition, the low water level switch 11 is connected to the heater 5 and the thermoswitch 8, respectively.
It is connected to a power source 13 via a manual power saving switch 12.

In such a configuration, during normal operation, the contact 12A of the power saving switch 12 is on, the contact 12B is off, and the low water level switch 11 is connected to the b side.

Thus, the heater 5 is energized, and the thermo switch 8 performs on/off control to keep the temperature constant, and the constant water level switch 10 of the float 7 performs on/off control to automatically maintain the water level in the tank 1 at the constant water level level A. .

When the water level reaches the low water level B due to a water outage, etc., the contact point of the low water level switch 11 of the float 7 is switched from the b side to the a side, and the power to the heater 5 is cut off.

Further, during normal operation, the automatic water supply circuit is stopped by switching the power saving switch 12 several hours before the end of the day, and the power supply to the heater 5 continues.

In this way, all of the hot water in the tank 1 can be used effectively except for the remaining water.

Furthermore, even at the beginning of use, water can be boiled in a short time by supplying only the necessary amount of water using the power saving switch 12.

As explained above, according to the tank water level control device of this invention, when the water level in the tank reaches a low water level due to water outage, etc., this is detected by the water level detection device and the power supply to the heater is cut off. , there is no way to invincibly heat the extra leftover water.

Moreover, by switching the power saving switch, the energizing circuit to the water supply solenoid valve is opened, water supply to the tank is stopped, and the heater continues to be energized, so it is possible to heat only the required amount of water in the tank, and the power is turned off. This has the effect of saving energy.

[Brief explanation of drawings]

FIG. 1 shows the components of an embodiment of this invention, and FIG. 2 shows its control circuit. 1... Tank, 2... Solenoid valve, 3...
...Water inlet, 5...Heater, 6...
・Discharge port, 7...Float, 8...Thermo switch, 10...Constant water level switch, 11
...Low water level switch, 12...Power saving switch, 13...Power supply.

Claims (1)

[Scope of utility model registration request] A tank, a water level detection device that detects the water level in the tank and controls the opening/closing of the water supply solenoid valve, a heater that is shut off when the water level detection device detects that the liquid is below a low level, and 1. A tank water level control device comprising: a power saving switch that opens an energizing circuit to the solenoid valve and forms an energizing circuit to the heater.