JPH01314849A - Hot water supplying apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a water heater that uses gas combustion or the like as a heat source.

2. Description of the Related Art A schematic configuration diagram of a conventional water heater is shown in FIG. 2. In FIG.
is a hot water tap, 4 is a hot water supply pipe, 5 is a heat exchanger, 7 is a water flow sensor, 8 is a solenoid valve, 9 is a proportional valve, 10 is an igniter, 11 is a burner, 12 is a flame detector, 13 is a control device be.

When a shower is required, the hot water tap 3 is opened, water flows, and a signal is output from the water flow sensor 7. In response to this signal, the control device 13 activates the solenoid valve 8, the proportional valve 9, and the igniter 10.
A signal is output to each of them, and combustion is started by the bar 11. The combustion flame of the burner 11 is detected by the flame detector 12, a signal is sent from the flame detector 12 to the control device 13, and a stop signal is generated from the control device 13 to the igniter 10. The water that flows into the hot water supply device when the hot water tap 3 is opened is converted from water to hot water by the heat exchanger 5, and the temperature sensor 1 provided in the hot water supply piping 4 converts the water into hot water by the heat exchanger 5.
The water comes out from the shower bed 1 at a temperature determined by the controller 13, the controller 13, and the proportional valve 9.

Problems to be Solved by the Invention However, in the conventional configuration described above, when the hot water tap 3 of the -degree shower is closed while taking a shower, the combustion of the water heater stops, and when the shower is taken again, the hot water tap 3 is closed.
After the engine is opened, combustion starts, and hot water at an appropriate temperature flows through the hot water supply pipe 4 until it reaches the shower head 1. Water that is not heat exchanged in the heat exchanger 5 comes out of the shower head 1, which improves usability. was bad.

The present invention solves these problems and provides a hot water supply device that allows users to always take a comfortable shower.

Means for Solving the Problems In order to solve the above problems, the hot water supply device of the present invention includes a hot water supply tap, a hot water supply pipe, a hot water supply port such as a shower head that supplies hot water by opening the hot water tap, and a hot water supply port such as a shower head that supplies hot water by opening the hot water tap. A water flow sensor that detects water volume, a fuel supply solenoid valve that opens under the control of the output signal of the water flow sensor, a burner connected to the solenoid valve that burns fuel, and a burner that ignites the fuel from the burner. An igniter, a flame detector that detects the flame of the burner, a heat exchanger that exchanges heat generated by combustion of the burner with water supply, and a heat exchanger that is installed near the shower head to temporarily suspend the use of the shower, etc. a water flow control device that sets the amount of water flowing through the hot water supply piping to the minimum ignition water amount when the use of a shower or the like is temporarily interrupted; a temperature sensor installed in the hot water supply piping; and a temperature sensor that controls the amount of fuel supplied based on the output of the temperature sensor. and a proportional valve that controls the proportional valve so that hot water reaches a set temperature based on the temperature signal detected by the temperature sensor, and outputs a signal to the water flow control device to reduce the amount of ignition water to a minimum amount in response to an interruption signal from the switch. and a control device that returns the water flow control device to its initial state upon release of the interrupt signal from the switch.

Function According to the water heater having the above configuration, if you are taking a shower or the like and temporarily interrupt the use of the shower or the like by operating the switch provided near the shower head, the hot water temperature will not change and only the amount of hot water will be reduced to the minimum ( Ignition water volume: The minimum amount of hot water that can be used to operate a water heater, etc.), and the next time you take a shower, you can use the same temperature as before by operating the switch. This makes the water heater extremely easy to use.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. FIG. 1 is a schematic diagram of a water heater according to an embodiment of the present invention.

In FIG. 1, 1 is a shower head, 2 is a remote control having a switch 2a that outputs a signal for temporarily suspending and canceling the use of the shower, 3 is a hot water faucet, 4 is a hot water supply pipe, 14 is a temperature sensor, 5 is a heat exchanger, 6 is a water flow control device, 7 is a water flow sensor, 8 is a solenoid valve, 9 is a proportional valve, 10
1 is an igniter, 11 is a burner, 12 is a flame detector, and 1a is a control device.

In the embodiment described above, when the hot water supply faucet 3 is opened to take a shower, a signal is output from the water amount sensor 7 based on the amount of water flowing through the hot water supply pipe 4. In response to this signal, signals are output from the control device 13 to the electromagnetic valve 8, proportional valve 9, and igniter 10, and fuel is supplied to the burner 11, causing spark discharge and combustion.

This combustion flame is detected by the flame detector 12, and a signal is sent from the flame detector 12 to the control device 13, and as a result, the igniter 10
The spark discharge from is stopped. Due to the combustion flame of the burner 11, the water that flows into the hot water supply system when the hot water tap 3 is opened is converted from water to water by the heat exchanger 5, and is connected to the temperature sensor 14 provided in the hot water supply pipe 4 and the control device 13. The water comes out from the shower head 1 at a temperature determined by the proportional valve 9.

Next, when the shower is not in use, operate the switch 2a in the remote control 2 installed near the shower head 1 to temporarily interrupt the shower, and this remote control 2 will send a signal to the control device 13, which will control the water flow. The device 6 throttles the amount of water flowing into the water sensor 7 to the minimum water amount (also referred to as the minimum ignition water amount to the burner 11), and at the same time, the proportional valve 9 adjusts the amount of fuel supplied based on this water amount and the signal from the temperature sensor 14. The temperature of the field exiting from 1 is controlled to be always constant.

Therefore, when you want to stop using the shower and take a blue shower, you can output an OFF signal from the control device 13 to the water flow control device 6 by operating the switch 2m in the remote control 2 installed near the shower head 1. By returning to the initial state and not controlling the amount of water, you can instantly supply a sufficient amount of hot water for a shower.

Effects of the Invention As described above, according to the water heater of the present invention, there is no need to operate the hot water tap each time when using a shower, etc.
Since the shower does not start with the ignition, cold water does not come out from the shower head or the like until the ignition, and you can take a shower with stable water temperature by operating a switch, which is extremely advantageous in practical terms.

[Brief explanation of the drawing]

Figure 1 shows gas combustion, which is an embodiment of the present invention, with heat 1...
...Shower head, 2m...Switch, 3
...Hot water tap, 4...Hot water piping, 5...
・Heat exchanger, 6...Water flow control device, 7...
・Water level sensor, 8... Solenoid valve, 9...
Proportional valve, 1o...Igniter, 11...Burner, 12...Flame detector, 13...Control device, 14...Temperature sensor .

Claims (1)

[Claims] A hot water tap installed in the hot water supply pipe, a hot water inlet such as a shower head that supplies hot water when the hot water tap is opened, a water flow sensor that detects the amount of water when the hot water tap is opened, and an opening controlled by the output signal of the water flow sensor. a solenoid valve for supplying fuel; a burner connected to the solenoid valve to combust fuel; an igniter to ignite the fuel from the burner; a flame detector to detect combustion in the burner; a heat exchanger that exchanges the heat generated by the combustion of A water flow control device that sets the amount of flowing water to a minimum amount of ignition water, a temperature sensor provided in the hot water supply piping, a proportional valve that varies the amount of fuel supplied based on the output of the temperature sensor, and hot water supply based on the temperature signal detected by the temperature sensor. controls the proportional valve so that the temperature reaches the set temperature, outputs a signal to the water flow control device to reduce the ignition water amount to the minimum amount in response to the interrupt signal from the switch, and when the interrupt signal from the switch is released, the water flow control device is activated. A water heater comprising a control device that returns to the initial state.