JPS63143615A - Hot-water supplying device - Google Patents

Abstract

PURPOSE:To improve operating convenience and to attain safe hot water supply by selecting a selector valve in accordance with the operation of an operation part and controlling a temperature control means by means of a controller. CONSTITUTION:The titled device is provided with the temperature control means 23, plural hot-water supply cocks 28, 29 for supplying hot water having different temperature ranges, the selector valve 27 for selecting these hot-water supply cocks 28, 29, a setter 38 having operation parts 53, 54 corresponding to the number of plural hot-water supply cocks 28, 29, and the controller 36 for selecting the selector valve 27 by the operation of the operating parts 53, 54 and controlling the means 23. A hot-water supply object is switched by operating the operation parts 53, 54 corresponding to the hot-water supply cocks 28, 29 and the means 23 is also controlled. Consequently, hot water can be safely supplied without misoperation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water heater that adjusts the temperature of hot water and supplies hot water to a plurality of objects having different operating temperature ranges.

2. Description of the Related Art A conventional water heater of this type is shown in FIG. (For example, Japanese Utility Model Application No. 61-18424) In FIG. 8, water supply 1 is branched into two systems, and hot water supply pipe 3 passing through water heater 2 and water supply pipe 4 are connected to constant temperature water heater 5. . Inside the constant temperature hot water supply device 5, the hot water supply pipe 3
A hot water flow valve 6 is connected to the water supply pipe, and a water flow valve 7 is connected to the water supply pipe to adjust the mixing ratio. The mixing pipe 8 is provided with a thermistor 9 that detects the temperature of the mixed water, and a controller 1 that arbitrarily adjusts the signal of the thermistor 9 and the temperature of the mixed water.
Based on the signal 0, the control device 11 turns on the water flow valve 6 and the water flow valve 7.
is controlled. The mixed hot water passes through a faucet 12 provided at the end of the mixing pipe 8 and is supplied to a bathtub 13 to which hot water is supplied.

The hot water flow valve 6 and the water flow valve 7 are driven by a hot water flow valve motor 14 and a water flow valve motor 15 which are controlled by a control device 11, and are feedback-controlled by a signal from a thermistor 9.

Problems to be Solved by the Invention However, the conventional configuration as described above has the following problems.

(1) After pouring boiling water to raise the water temperature in the bathtub 13, for example, even if the controller 10 returns the temperature to a low temperature, hot water remains in the mixing pipe 8, and the faucet 12 is opened again. Then, boiling water was supplied, which was dangerous.

(2) In addition to the bathtub 13, there are other hot water supply objects in the bathroom, such as washing areas and showers, which have different operating temperature ranges than the bathtub 13. However, since the faucet 12 and constant temperature water heater 5 have a one-to-one correspondence, multiple hot water supply objects can be used. To accommodate this, the same number of constant-temperature water heaters were required.

(3) Controller 10 for setting the water temperature, flow rate adjustment,
The faucets 12 that shut off the water are separate, and if it is unavoidable to branch out the faucets to accommodate multiple hot water supplies and use a single constant-temperature water heater 5, you may forget to set the hot water setting on the controller 10. When the faucet was opened, hot water was supplied even to faucets that did not require hot water, which was dangerous.

Moreover, if a faucet that does not require hot water is opened after using hot water at another faucet, the hot water remaining in the mixing pipe 8 will still be supplied, which is dangerous. The present invention solves these conventional problems, and aims to provide a water heater that is easy to operate and safe.

Means for Solving the Problems In order to solve the above-mentioned problems, the water heater of the present invention includes a temperature control means, a plurality of hot water ports that supply hot water with different temperature ranges, and a plurality of hot water ports that supply hot water in different temperature ranges. A switching valve to switch,
A setting device having a number of operation parts corresponding to the plurality of hot water supply ports,
The device includes a controller that switches the switching valve and controls the temperature adjustment means by operating the operating section.

Effect 5-- With the above-described configuration, the hot water supply device of the present invention can supply hot water safely without any erroneous operation, since the hot water supply target is switched and the temperature adjustment means is also controlled by operating the operation unit corresponding to the hot water supply inlet. can be done.

Example Embodiments of the present invention will be described below based on the accompanying drawings.

In FIG. 1, the hot water produced by the water heater 16 is routed through
7 and the water is introduced via a water side path 18 into a mixing unit 19 which is a temperature regulating means. The hot water and water then reach the mixing valve 23 via check valves 20 and 21 and a pressure balance valve 22 that balances the hot water pressure and water pressure. The mixing valve 23 is driven by a motor, and the mixed hot water whose mixing ratio is adjusted is passed through a thermistor 24, a flow sensor 25, and a pressure pump 2.
6 and reaches the switching valve 27. The switching valve 27 is also of the type driven by a motor, and the switching valve 27 switches between the hot water supply port A28 and the hot water supply port B29. The hot water supply port A28 is connected to a shower 30 and a shower 31, which require hot water in a temperature range from normal water to about 45° C., via a path 6t-A32. Also, on hot water supply day 29,
Bathtub 3 that requires not only cold water but also boiling water around 42℃
It is connected to the discharge port 34 of No. 3 through a path B35.

The hot water supply port A2B is equipped with a mechanical device equipped with a temperature sensing element to prevent hot water from being supplied to the shower 30 or the boiler 31 in the event that the mixing valve 23 or the switching valve 27 malfunctions or the control circuit 36 malfunctions. It has a temperature safety valve 37. Additionally, a setting device 38 is provided in the bathroom to switch the hot water supply light and adjust the temperature of the mixed hot water. For example, in the kitchen outside the bathroom,
A remote control setting device 39 is provided for relaying the start of hot water supply by remote control, timer water supply, or telephone.

FIG. 2 is a detailed diagram of a block around the mixing valve 23. The mixing valve 23 is of a type in which a hot water side valve body 40 and a water side valve body 41 are provided on a shaft 42, and are driven by a motor 43 via a gear box 44.

FIG. 3 is a detailed diagram of the switching valve 27 block.

The switching valve 27 has both ends regulated by a shaft 45, and a valve body A47 and a valve body 848, which are biased by a spring 46, are driven by a motor 49 via a gear box 50.

At the neutral point, the supply of hot water to the hot water inlet A28 and the hot water inlet B29 is stopped, and by being pushed to the left in the figure, hot water is supplied to the hot water inlet A28, and by being pulled to the right, hot water is supplied to the hot water inlet B29. This is a switching/water shutoff/flow control valve. The temperature safety valve 37 provided at the hot water supply port A28 is
The wax thermometer 51, which is a temperature sensing element, detects the set temperature (
When the temperature exceeds 46° C.), the valve body 52 expands and closes the flow path.

FIG. 4 shows details of the setting device 38.

A shower switch 53, which instructs hot water supply to the shower 30 and a switch 31, and which is placed in the setting device 38 in response to this, and a bathtub switch, which instructs hot water supply to the bathtub, which is placed in the setting device 38, which corresponds to this. 54, a multi-switch 55 for increasing the flow rate, a small switch 56 for decreasing the flow rate, and a call switch 57 for calling someone else are provided facing the front. When the shower switch 53 and the bathtub switch 54 are pressed, the hot water supply port is switched to the side that was pressed, and the four volumes ( Hot water supply starts at the value set in (not shown). Then, when the hot water supply amount reaches the value set by the hot water filling volume volume 58 provided in the part covered by the lid of the setting device 38, the hot water supply is automatically stopped.

When you want to change the preset value of flow rate, use multi-switch 5.
5 or by operating the small switch 56. Also,
If you want to change the preset mixed water temperature, adjust it by operating the high switch 59 or low switch 60 inside the lid. 61 is a drain valve confirmation switch, and the signal bone of the remote control setting device 39, which will be described later, is for turning on. Setting device 38
In addition, it has a display section 62 and an alarm buzzer 63.

In addition, the range in which the temperature can be changed with the high switch 59 is from water to 45 when the shower switch 53 is pressed.
℃, or if the bathtub switch 54 is pressed, the temperature can be changed over the entire range from water to 50℃ hot water above 45℃.

FIG. 5 shows details of the remote control setting device 39.

91-.

When the remote control switch 64 is pressed, water can be supplied using the remote control if the drain valve confirmation switch 61 is pressed and hot water is not being supplied by operating the setting device 38.

Further, when the time set by a timer 66 having a clock display section 65 arrives, the timer switch 67 is pressed and hot water can be heated under the same conditions as the remote control switch 64. Furthermore, this remote control setting device 39 has an H
An A adapter is provided, and when hot water supply is instructed via telephone 69, hot water supply can be started under the same conditions as remote control switch 64. During such remote-controlled hot water supply, timer hot water supply, and teleconverted hot water supply, the hot water temperature is set according to the setting of the hot water temperature volume 70, the switching valve 27 is automatically switched to the hot water supply port 29 side, and hot water is supplied to the bathtub 33. In addition, the remote control setting device 39 is provided with a buzzer 71 that sounds in conjunction with the call switch 57 and various display sections.

FIG. 6 is a control block diagram. In response to signals from the various switches and volume controllers described above, the mixing 10/- valve 23 feeds back the temperature of the mixed water using the thermistor 24 and controls the motor 43 via the adjusting section 72.

In addition, the switching valve 27 is connected to the shower switch 53.
Alternatively, a specified hot water supply port is opened according to an instruction from the bathtub switch 54, and the motor 49 is controlled via the adjustment section 73 by feeding back the signal from the flow rate sensor 25.

The signal from the flow rate sensor 74 is further integrated by a flow rate integrating section 79 and compared with the value of the hot water filling volume 58 to perform fixed water stoppage.

Next, the operation of this embodiment will be explained. When the setting device clicks on the third day and the shower switch 53 is pressed, the switching valve 27 opens the hot water supply port A2B side where the hot water temperature range is from cold to 45°C.
Hot water supply is started at the temperature and flow rate set in advance by the controller 36. The hot water temperature is adjusted by a mixing valve 23, and the set temperature is compared with the temperature detected by a thermistor 24 to obtain an appropriate temperature. The flow rate is adjusted by the switching valve 27, and the preset flow rate and the flow rate detected by the flow rate sensor 25 are compared to obtain the appropriate amount. If you wish to change the preset water temperature, operate the high switch 59 or the low switch 60 to do so. However, Karan, shower switch 53
When dispensing hot water, even if the high switch 59 is operated, a temperature of 45° C. or higher cannot be set in a controlled manner.

If you want to change the preset flow rate, use the multi-switch 5.
5 or by operating the small switch 56. If you want to stop the hot water supply, press the shower switch again.
When is pressed, the switching valve 27 closes the flow path. When the bathtub switch 54 is pressed, the switching valve 27 switches the hot water supply temperature range from cold to hot water to the hot water supply port 829 side, and hot water is supplied at the temperature and flow rate set in advance by the controller 36. The volume of the controller 36, the volume that presets the temperature corresponding to the shower switch 53, and the volume that presets the temperature that corresponds to the bathtub switch 54 are also connected to the hot water inlet A28 and the hot water inlet B.
You can choose from 29 hot water temperature ranges.

In the case of hot water supply to the bathtub 33, the hot water supply is automatically stopped when the set value of the hot water filling volume 5B is reached. In order to prevent users from forgetting to turn off the shower switch 53 when operating the shower switch 53, the hot water supply is stopped when the hot water supply volume 58 is continuously used to the set value. These quantitative water stops are performed by integrating the signals from the flow rate sensor 25. When pouring hot water for the purpose of raising the temperature of the water in the bathtub 33 when taking a bath, first press the bathtub switch 54 and then operate the high switch 59 to raise the set temperature to boiling water. Switching valve 2
7 opens the hot water supply port 829 side, and the mixing valve 23 fully opens the hot water side to supply hot water. In this state, when using the splash 31 or shower 30 in the washing area, press the splash shower switch 53, the mixing valve 22 will immediately change the mixing ratio to the predetermined mixed water temperature, and the switching valve 27 will switch to the hot water supply port A2B. hot water is supplied at a predetermined temperature of 45°C or less and at a flow rate. For this reason, even after pouring boiling water into the bathtub 33, the splash 31 and shower 30
It is safe because the hot water remaining in the path 835 is not supplied. Further, in conjunction with the switching of the hot water supply port A2B and the hot water supply date 29, the hot water supply temperature range can also be changed automatically, making it even safer. Further, since the hot water supply target is selectively selected by the switching valve 27, hot water is not supplied from the flusher 31 or the shower 30 while hot water is being supplied to the bathtub 33. In the unlikely event that hot water of 46°C or higher is to be supplied from the hot water supply port 28 due to a failure of the mixing valve 23, switching valve 27, or controller 36, the temperature safety valve 37 will immediately operate and hot water will be supplied. to prevent it from happening.

Note that this mixing unit 19 can also be used with a hot water supply fitting 75 having one route A32 and one route date as shown in FIG.

In this case, the route A32 and the route B35 merge and are connected just before the hot water supply fitting 75.

In the case of this single-point application, hot water can be safely supplied with simple operations, just as in the case of multiple-point application.

As an effect of this embodiment, the hot water supply inlet is switched according to the operation of the clicker, shower switch 53, or bathtub switch 54, which is the operation part, and the temperature range adjusted by the mixing valve 23, which is the temperature adjustment means, is also changed. Therefore, hot water is not supplied to hot water objects that do not require particularly high temperatures, resulting in a safe effect. In addition, since hot water can be supplied at a preset temperature according to the operation of the switch, shower switch 53, or bathtub switch 54, the frequently used temperature can be immediately obtained, which has the advantage of convenience with fewer operations. .

Further, since the switching valve 23 has a water shutoff function, there is no need to provide a separate water shutoff valve, which has the effect of simplifying the configuration. Furthermore, the switch, shower switch 53, and bathtub switch 54 are arranged on the setting device 38 in correspondence with the arrangement of the switch 31, the shower 30, and the bathtub 33, so you can easily see which switch to operate, making it easy to use. It has this effect. In the above embodiments, a mixing valve is used as the temperature regulating means, but it may also be an instantaneous water heater using a gas proportional valve material, which regulates the temperature with a water heater.

Effects of the Invention As described above, according to the water heater of the present invention, the following effects can be obtained.

(1) Hot water can be supplied by switching the hot water supply ports connected to hot water supplies having different operating temperature ranges using a switching valve, so hot water is not supplied from a hot water supply port that does not require high temperatures, making it safe.

(2) One temperature control device can safely supply hot water to hot water objects that use multiple different temperature ranges.

(3) Since it has multiple operation parts corresponding to multiple hot water supply ports, it is easy to operate without accidentally setting the hot water supply port or the hot water supply target, and the temperature adjustment means is also controlled. It is even easier to use and safer.

(4) By connecting multiple routes to multiple hot water supply ports and merging the routes just before one hot water supply fitting, it can be used for hot water supply at one location while maintaining safety. In this case as well, since there are multiple operating sections, safety can be ensured by selecting one depending on the desired temperature range.

[Brief explanation of the drawing]

Fig. 1 is a diagram of a hot water supply system using a water heater according to an embodiment of the present invention, Fig. 2 is a partially cutaway sectional view showing a mixing valve block of the same device, and Fig. 3 is a partially cutaway sectional view of the same switching valve block. Fig. 4 is a front view of the setting device, Fig. 5 is a front view of the remote control setting device, Fig. 6 is a control block diagram of the device, and Fig. 7 is a diagram of another hot water supply system to which the same device is applied. , FIG. 8 is a diagram of a hot water supply system using a conventional hot water supply device. 23...Mixing valve (temperature control means), 27. River.
・Switching valve, 28...Hot water inlet A129・Mountain...Hot water inlet B, 36...Controller, 38...Setting device, 53・Mountain...Click, shower switch last work part)
, 54... Bathtub switch (operation unit). Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 3

Claims (5)

[Claims] (1) A temperature control means for adjusting the temperature of hot water, a plurality of hot water ports for supplying hot water with different temperature ranges adjusted by the temperature control means to the hot water supply target, and a plurality of switching valves for switching between the plurality of hot water ports; A hot water supply device comprising: a setting device that selects the hot water supply port using a number of operation sections corresponding to the number of hot water supply ports; and a controller that switches the switching valve according to the operation of the operation section and controls the temperature adjustment means. . (2) The hot water supply device according to claim 1, which changes the temperature of the hot water in the temperature adjusting means in accordance with the operation of the operating section. (3) The hot water supply device according to claim 1 or 2, which supplies hot water at a preset hot water temperature according to the operation of the operating section. (4) The water heater according to claim 1, wherein the switching valve has a water shutoff function. (5) The hot water supply device according to claim 1, wherein the operation section is arranged in correspondence with the arrangement of the hot water supply target.