JPS6142011Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a mixing type hot water storage type water heater. In conventional hot water storage type water heaters, as shown in Fig. 4, the temperature of the water in the hot water storage tank 1' is detected by a thermostat 2', and the gas control valve 3' is controlled to maintain the temperature at a predetermined temperature. For example, if thermostat 2' is set to 40℃, the water temperature in hot water tank 1' will change.
Adjust the gas input with the gas control valve 3' so that the temperature is 40℃, and the temperature of the hot water coming out from the hot water tap 9' is naturally 40℃.
becomes stable. However, if you suddenly want hot water at 70℃, you reset the thermostat 2' to 70℃, but because the heat capacity in the storage tank is large, there is a delay in the time until the temperature of the hot water from the hot water outlet pipe 9' reaches 70℃. is large. On the other hand, if you want hot water at 40°C when hot water is at 70°C, you will need to release hot water at 70°C.
There were drawbacks such as a large amount of heat being wasted.

The purpose of this invention is to eliminate the above-mentioned conventional drawbacks and provide a storage type water heater that is easy to use.
For this reason, the water temperature in the hot water storage tank is always maintained at a high temperature, and this is mixed with cold water on the hot water outlet side.
In addition, the mixing operation can be remotely controlled using a thermomixer, making it possible to immediately dispense hot water at a desired temperature.

In other words, the gist of this invention is that the hot water tank 1
A thermostat 2 controls the temperature of the hot water inside the hot water at a constant high temperature, and mixing valves 20 and 2 are provided on the hot water outlet side to mix the hot water and cold water to obtain hot water at a desired temperature.
1, and a dial 6 installed at a position away from the hot water tank 1 to adjust the rotation angle of the motor M axis of the thermomixer 4 for adjusting the opening degrees of the mixing valves 20 and 21. The present invention relates to a mixing type hot water storage type water heater characterized in that the operation can be arbitrarily adjusted using a remote control device 5.

An embodiment of this invention will be described below based on FIG.

1 is a hot water storage tank, and water is supplied into the tank from a water supply pipe 7 and heated by a burner. 2 is a thermostat installed in this hot water storage tank to detect the temperature of the hot water in the tank, and a thermostat installed in the gas pipe on the input side of the burner sends a signal according to the temperature difference between the set temperature and the hot water temperature in the tank. The information is transmitted to the control valve 3 to control the gas input to maintain the hot water temperature in the hot water storage tank at a high temperature set value. 4 is a thermomixer for mixing hot water and cold water, and a hot water outlet pipe 9 from the hot water storage tank is connected to this,
A branch pipe 8 branched from the water supply pipe 7 is connected, and the temperature setting of this thermomixer is controlled by a remote control device 5.
Do as you would do in . The remote control device 5 is provided, for example, near a hot water tap, and a dial 6 is used to set the temperature.
10 is a hot water outlet pipe of a thermomixer, which discharges hot water that has been mixed to a desired temperature by the thermomixer.

Although any type of thermomixer such as an electromagnetic type can be used as the thermomixer, a motor-driven thermomixer is used in the embodiments shown in FIGS. 2 and 3.

Figure 2 shows an example of a motor-driven thermomixer, for example, the rotating shaft 11 of a stepping motor M.
The spindle 12 is connected fixedly in the rotational direction and slidably in the axial direction, and an adjustment cam 13 is fixed in the middle of the spindle 12, and the tip of the spindle 12 is inserted into the heat-sensitive element 14. It is pivotally connected to the housed bellows 15 so as to be rotatable but fixed in the axial direction. The heat-sensitive element 14 is made of a good thermal conductor, is fixed to the main body A, and is filled with a heat-sensitive liquid 16, and when the heat-sensitive liquid expands and contracts due to temperature changes, the spindle 12
moves up and down. A balance plate 17 is rotatably supported on the heat-sensitive element 14 at a fulcrum G (see FIG. 3). The spring H biases the heat-sensitive element 14 and the balance plate 17 so as to push them apart. When the shaft of the motor M is rotated by a predetermined angle, the adjustment cam 13 rotates, and the balance plate 17 is tilted at the fulcrum I position, causing the high-temperature water side valve 20 to rotate.
The opening degree of the cold water side valve 21 changes, and mixed water at a desired temperature is dispensed. Even if temperature fluctuations occur mainly in the flow on the cold water side and a difference in temperature from the desired temperature occurs in the mixed water, the heat-sensitive liquid expands and contracts in accordance with the imbalance, moves the spindle up and down via the bellows 15, and is heated to a high temperature. This system simultaneously adjusts the flow rates of hot and cold water and changes the mixed flow rate so that the mixed water has a set temperature.

The rotation angle of the motor M of the thermomixer 4 and the rotation angle of the dial 6 of the remote control device 5 are as follows:
When the dial 6 is set to a desired temperature, the rotation angle of the motor is synchronously controlled so that the hot water temperature of the thermomixer reaches the desired temperature.

Since this device is constructed as described above, when using this device, first set the thermostat 2 to maintain the hot water temperature in the hot water storage tank 1 at a high temperature, and then turn the remote control dial 6. When the desired temperature is set, the shaft of the motor M of the thermomixer 4 rotates in synchrony with this, and the rotation stops at a position where hot water at the desired temperature can be obtained. After that, even if the temperature of the hot or cold water entering the mixer fluctuates, the hot water temperature will be automatically controlled to the desired temperature determined by the rotation angle of the motor M-axis, as described above, or the desired temperature set with the dial 6. It will be done.

Thus, according to the mixing type hot water storage type water heater of this invention, the high temperature hot water from the hot water storage tank 1 and the cold water from the branch pipe 8 are mixed in predetermined amounts by the thermomixer 4, and the hot water is mixed by the thermomixer 4 in predetermined amounts using the dial of the remote control device near the hot water tap. You can instantly obtain hot water at the desired temperature that you set, so when you want to change the hot water temperature like with a conventional water heater, you can go from the hot water tap to the water heater installation location and change the thermostat setting. In addition, the inconvenience of having to wait until the desired temperature is reached after changing the temperature is eliminated, making it extremely convenient in actual use.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an embodiment of this invention.
Figure 2 is a vertical cross-sectional view showing an example of a thermomixer;
FIG. 3 is a perspective view of essential parts of a thermomixer, and FIG. 4 is a schematic diagram of a conventional hot water storage type water heater. 1...Hot water tank, 2...Thermostat, 3...
Gas control valve, 4...thermo mixer, 5...remote control device, 7...water supply pipe, 8...branch pipe, 9...
Hot water pipe.

Claims (1)

[Scope of utility model registration request] A thermostat 2 installed in the hot water storage tank 1 to control the temperature of the hot water in the tank at a constant high temperature is connected to a gas control valve 3 installed in the gas pipe on the input side of the burner. 9 to hot water pipe 9
The opening degree of the mixing valves 20 and 21 is adjusted by changing the angle of rotation of the motor M to mix the hot water from the water supply pipe 7 and the cold water from the branch pipe 8 branched from the water supply pipe 7 to obtain hot water at a desired temperature. A remote control device with a dial 6 installed at a position away from the hot water storage tank 1 to adjust the rotation angle of the motor M that adjusts the opening degrees of the mixing valves 20 and 21 of the thermomixer 4. 5. A mixing type hot water storage type water heater characterized in that the operation can be arbitrarily adjusted.