JPH02157537A - Hot water feeding and heating device - Google Patents

Abstract

PURPOSE:To enable a hot water to be fed to a set water level and at a set temperature to be performed within a short period of time and automatically and to improve the convenience in use of the device by a method wherein a water amount adjusting valve is arranged at an automatic hot water feeding pipe and additional hot water supply and an additional heating are applied even in case that a water in a bath tub is reduced and a hot water temperature is decreased. CONSTITUTION:When a remained hot water of the previous day is utilized to boil up a bath tub water or when a volume of hot water is decreased during taking a bath or its temperature is decreased, a turning on of a switch for a controller causes a water volume adjusting valve 15 to be opened with a signal from a controller device 13 and then the hot water is added to the bath tub 4. A degree of opening of the water volume adjusting valve 15 is varied in such a way as the temperature at this time becomes high and then the amount of water is adjusted and hot water is flowed. That is, a temperature sensor 14 detects a temperature of hot water fed to the bath tub 4 and a signal is sent to the water volume adjusting valve 15 from the control device 15 in such a way as it becomes a set temperature so as to adjust the flow rate. If the bath tub water is accumulated from a connection port between the bath tub 4 and the additional heating pipe 9, the additional heating pump 6 is operated to circulate the bath tub water and then the water is heated by the additional heating heat exchanger 3. With this arrangement, it is possible to set a proper amount of bath tub water within a short period of time, resulting in that its convenience in use is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a two-can, three-water type hot water supply and heating device with a high-temperature pouring hot water function.

2. Description of the Related Art A conventional hot water heater system for two cans and three water heaters is, for example, as shown in FIG. A reheating heat exchanger 3 is provided, a reheating pump 6 is provided between the bathtub 4 and the reheating heat exchanger 3, and a water level detection device 7 is also provided.
is installed. In addition, an automatic hot water supply pipe lO that is led from the hot water heat exchanger 8 to the bathtub 4 via the reheating pipe 9 or directly led to the bathtub 4 has a shutoff valve 11.
is provided. A hot water supply pipe 12 is installed in parallel with the automatic hot water supply pipe 10. 13 is a control device;
A temperature detector 14 is provided at the outlet of the hot water heat exchanger 8 .

In the above case, if the bathtub 4 is to be set up from scratch as the first case, a signal is sent to the control device 13 by turning on the controller (not shown), which opens the shutoff valve 11 and exchanges hot water heat. Hot water heated to a set temperature by the vessel 8 is dropped into the bathtub 4. At this time,
A water level detection device 7 detects the water level in the bathtub 4, and when the water level reaches a certain setting, the shutoff valve 11 is closed, and an appropriate amount of hot water at an appropriate temperature is dropped into the bathtub 4.

In the second case, when the appropriate amount of water in the bathtub becomes cold, the heating pipe 2 is heated by the heating burner 1 in response to a signal from the control device 13. Bathtub water is supplied to the reheating heat exchanger 3 provided in the heating pipe line 2 by the reheating pump 6 and heated. Since the bathtub water is forcibly circulated by the reheating pump 6, the temperature becomes uniform, and when a certain set temperature is reached, heating is stopped by a signal from the control device 13.

In the third case, when the amount of water in the bathtub decreases and the temperature also decreases, such as when using leftover hot water from the previous day, the shutoff valve 11 opens in response to a signal from the control device E13. , hot water heated by the hot water supply heat exchanger 8 is dropped into the bathtub 4 to a certain set water level. At this time as well, the water level detection device 7 detects the water level in the bathtub 4 and the shutoff valve 1
Stop 1. At this time, since the automatic hot water supply pipe 10 does not have a function to adjust the amount of water, it is not possible to throttle the flow rate and drop high-temperature water. Therefore, if the temperature of the remaining hot water is low, even if you pour hot water to the set water level, the water temperature will still be low. At this time, similarly to the second case, the bath water is heated by the reheating heat exchanger 3 to boil it to the set temperature.

Problems to be Solved by the Invention According to the above structure, reheating is heated by hot water for heating, so the higher the temperature of the bath water, the lower the output of reheating, and the longer the reheating pipe line 9 is. I see, because the flow rate of the bathtub water circulating through the reheating pipe line 9 decreases, the reheating output decreases.In addition, in the case of the third case mentioned above, the flow rate is adjusted to the hot water supply side to increase the flow rate. There is no function to squeeze high-temperature water into the bottle, and the reheating output is small, so when the bottle loses volume and the temperature drops during bathing, it takes time to get the bottle to the right temperature and volume, making it difficult to use. There was a downside to it being bad.

The present invention solves the above-mentioned conventional problems, and aims to bring bath water to a set water level in a short period of time at an appropriate temperature.

Means for Solving the Problems In order to solve the above problems, the present invention provides a heating hot water pipe that is directly heated, and a reheating heat exchanger that is installed in the heating hot water pipe and that is indirectly heated by the heating hot water. a circulation pump that supplies bathtub water to the reheating heat exchanger; a water level detection device that detects the water level of the bathtub provided in the reheating pipe; and an automatic hot water supply pipe that runs a groove directly into the bathtub. , a water ffi provided on the discharge side of the hot water heat exchanger in the middle of the automatic hot water supply pipe.
The structure is equipped with a control valve.

Effect In the above configuration, by providing a water flow control valve in the automatic hot water supply pipe of the 2-can, 3-water heater, it is possible to use the remaining hot water from the previous day, or when the water in the bathtub becomes dry during bathing. By pouring hot water at a high temperature and using a pump to circulate and heat the bathtub, the bathtub water can be adjusted to an appropriate amount in a short period of time, making it easy to use.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. Note that the same parts as in the above conventional example are given the same reference numerals, detailed explanations are omitted, and different parts will be mainly explained.

In FIG. 1, on the discharge side of the hot water heat exchanger 8, a water flow control valve 15 is provided in the middle of the automatic hot water supply pipe 10, which can proportionally control the flow rate.

Hereinafter, the effects of the following configuration will be explained.

When boiling a bath using leftover hot water from the previous day, or when the amount of hot water or the temperature drops while taking a bath, when the controller is turned on, a signal from the control device t13 causes the water to turn on! The control valve 15 opens and the bathtub 4 is drained. The opening degree of the water flow control valve 15 is changed so that the temperature at this time becomes high, and the flow rate is adjusted to flow high temperature water.
A temperature detector 14 detects the temperature of the hot water supplied to the bathtub 4, and the control device 13 sends a signal to the water flow control valve 15 to adjust the flow rate so that the temperature is set at a high temperature. Furthermore, if bathtub water accumulates from the connection port between the bathtub 4 and the reheating pipe line 2,
The reheating pump 6 is activated to circulate the bath water, and the reheating heat exchanger 5 heats the water to a high temperature of 0 or higher, and also performs reheating, resulting in a large output and shortening the boiling time. The water level detection device 7 allows hot water to be filled to a set water level at a set temperature.

Next, when pouring the water into the bathtub, change the opening degree of the water flow control valve 14 so that the water is at an appropriate temperature (around 42°C), and then soak the water in the bathtub.

Alternatively, as shown in FIG. 2, a water flow control valve 15 may be designed on the inlet side of the hot water heat exchanger 8, and a shutoff valve 11 may be provided in the middle of the automatic hot water supply pipe 10 on the discharge side of the hot water heat exchanger 8. good. With this configuration, when hot water is used in the hot water supply pipe 12 leading to the shower or kitchen, the flow rate can be adjusted so that the set temperature can be maintained within the output range of the hot water heat exchanger 8. Furthermore, the water flow control valve 14 and the shutoff valve 11 allow hot water to be poured at high temperatures. With this mechanism, when using hot water at the faucet,
It is easy to use because you don't have to pour out too much water and the water temperature drops, or squeeze it too much and it gets hot.

Effects of the Invention As described above, according to the present invention, by attaching a water flow control valve to the automatic hot water supply pipe of a two-can, three-water type hot water heater, hot water can be poured even when the bathtub water decreases and the hot water temperature drops. By using this in combination with reheating, hot water can be heated automatically to the set water level at the set temperature in a short period of time, greatly improving usability.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of the hot water heater of the present invention.
FIG. 2 is an overall configuration diagram of the embodiment, and FIG. 3 is an overall configuration diagram of a conventional hot water heater. 2... Heating hot water pipe, 3... Reheating heat exchanger, 4... Bathtub, 6... Reheating pump, 7... ...Water level detection device, 9...Additional heating pipe line, 10...Automatic hot water supply pipe line, 15...
Water flow control valve. Name of agent: Patent attorney Shigetaka Awano Haka 1 person Ward u

Claims (2)

[Claims] (1) A heating hot water pipe that is directly heated, a reheating heat exchanger installed in the heating hot water pipe and indirectly heated by the heating hot water, and supplying bath water to the reheating heat exchanger. A reheating pump, a water level detection device installed in the reheating pipeline to detect the water level of the bathtub, an automatic hot water supply pipe that directly drops hot water into the bathtub, and a hot water heat exchanger in the middle of the automatic hot water supply pipe. A hot water supply and heating device equipped with a water flow control valve installed on the discharge side. (2) Claim (1) characterized in that a water flow control valve is provided on the water inlet side of the hot water heat exchanger, and a shutoff valve is provided on the discharge side of the hot water heat exchanger in the middle of the automatic hot water supply pipeline. Hot water heating equipment as described in section.