JPH02233940A - Hot water boiler - Google Patents

Abstract

PURPOSE:To eliminate inconvenience in use and provide a hot water boiler of which handling is easily carried out by a method wherein each of operating portions is constructed such that a changing-over to a hot water feeding terminating state is instructed when the hot water is being fed and in turn in case that the hot water feeding is stopped, the changing-over to the hat water feeding state is instructed. CONSTITUTION:A water feeding changing-over means S1 for use in changing-over between a state where water is fed to a water heating heat exchanger 1 and another state where water is not fed and a combustion changing-over means S2 for changing-over a burner 2 for heating the heat exchanger 1 between a firing state and a shut-off state are provided. A hot water feeding control means C is provided for controlling a changing-over between a hot water feeding state where the water feeding changing-over means S1 is set to feed water and the changing-over means S2 is set to its firing state and a hot water feeding termination state where the changing-over means S1 is set to a water feeding termination state and the changing-over means S2 is set to shut-off. This hot water feeding control means C is provided with a plurality of operating portions 16A and 16B for instructing a hot water feeding and a termination of hot water feeding. Each of the operating portions 16A and 16B may instruct to change-over to the hot water feeding termination state under a hot water feeding state and to change-over to the hot water feeding state in case of hot water feeding termination state.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a water flow switching means for switching between a water heating heat exchanger state and a state in which water flow is stopped, and a water heating heat exchanger. A combustion switching means is provided for switching a burner that heats the heat exchanger between an ignition state and an extinguishing state, and
A hot water supply state in which the water flow switching means is in a water flow state and the combustion switching means is in an ignition state, and a hot water supply state in which the water flow switching means is in a water flow stop state and the combustion switching means is in an extinguished state. Hot water supply system 1 that controls switching between hot water supply stop state and hot water supply stop state
The hot water supply control means relates to a water heater including a plurality of operation parts for instructing hot water supply and stopping the hot water supply.

(Prior Art) This type of water heater is equipped with a self-holding push-button switch, for example, as an operating section on the front of the appliance body and at the tip of the hot water pipe led out from the appliance body. The hot water supply control means controls switching to the hot water supply state when at least one of these push button switches is held in the pressed state, and controls switching to the hot water supply stop state when both push button switches return to the reset state. [Problems to be Solved by the Invention] In the water heater described above, hot water can be supplied by leaving one push button switch in the reset state and holding the other push button switch in the pressed state. It is necessary to use the device in a form that controls switching from a stopped state to a hot water supply state, and then returns the push button switch to a return state to switch from a hot water supply state to a hot water supply stop state.In other words, the appliance body switches to a hot water supply state. If this is controlled, the appliance body side will switch to the hot water supply stop state, and if the hot water outlet pipe side is switched to the hot water supply state, the hot water outlet pipe side will be switched to the hot water supply stop state. For this reason, for example, if you are washing dishes by switching the hot water supply pipe to the hot water supply state, and then leave the washing area for some errand while the hot water is still being supplied, and then you want to switch to the hot water supply stop state, you may have to take the trouble to do so. There was the inconvenience of having to go back to the washing area and push back the push button switch on the hot water pipe side.

By the way, in conventional water heaters, one push-button switch is set to the return state, the other push-button switch is pressed to control switching from the hot water supply stop state to the hot water supply state, and then one push-button switch that is in the return state is pressed. If the button switch is pressed by mistake, the hot water supply state can be maintained, but in order to switch to the hot water supply stop state, it is necessary to push both switches back to the return state.

Therefore, for example, if someone mistakenly presses the push button switch on the main body of the appliance while washing dishes by controlling the hot water supply state on the hot water pipe side, if the user attempts to switch the hot water supply state to the stopped state, There was also the inconvenience of having to push back the push button switch on the hot water outlet pipe side, and then go back to the appliance body and push back the push button switch on the appliance body.

The present invention aims to eliminate such inconvenience in use and provide a water heater that is easier to handle.

[Means to solve the problem]

In order to achieve the above object, in the present invention, each of the operation parts is configured to switch the hot water supply state to the hot water supply stop state when the hot water supply state is in the hot water supply state, and switch to the hot water supply state when the hot water supply state is in the hot water supply stop state. It is characterized by being configured to instruct switching. [Function] In other words, the hot water supply state that has been switched and controlled by an instruction from a certain operating section can be switched to a hot water supply stop state no matter which operating section is used. Furthermore, the hot water supply stop state, which is controlled to be switched by an instruction from a certain operating section, can be switched to the hot water supply state by any instruction from any operating section.

〔Effect of the invention〕

Regardless of what instructions are issued by the other operating section and what state is controlled by it, if the operating section is closer and easier to operate, the hot water supply state will be switched to the hot water supply stop state. If the hot water supply is stopped, it can be switched to the hot water supply state, making it easy and convenient to use.

[Example] Hereinafter, an example of the present invention will be described based on the drawings. What is shown in Fig. 1 is a gas instantaneous water heater, which is equipped with a fin-tube type water heating heat exchanger (1) and a burner (2) for heating it. Water supply channel (3)
is equipped with a faucet (4) and a water governor (5) that adjusts the amount of water supplied in response to changes in water pressure, and a flexible pipe is installed in the hot water outlet path (6) from the heat exchanger (1). (7) is led out and a hot water tap (8) is attached to its tip.

In addition, the gas fuel supply path (9) to the burner (2) is connected to a shutoff valve (10) and a water governor (5) via an interlocking rod (not shown) so that a water pressure valve that opens only when water is supplied is provided. Response valve (
11), the burner (2) responds to changes in the source pressure of gas fuel supply.
) to keep the gas fuel supply pressure at the appropriate pressure.
), and a regulating valve (13) for regulating the gas fuel supply amount.

The faucet (4) is equipped with an electric valve equipped with a gear motor (14), and the cutoff valve (10) is equipped with an electromagnetic solenoid (
15) is applied. These faucets (4) and cutoff valves (10) are connected to a controller (C) (an example of hot water supply control means).

The appliance main body (A) and the hot water tap (8) each include a tact switch (16A) as a self-resetting switch,
(16B) (An example of an operation unit) is provided. These tact switches (16A). (16B) is connected to a pulse generation circuit (17), and this pulse generation circuit (17) is further connected to the controller (C). And tact switch (16A). (16B), one pulse is output from the pulse generating circuit (17) to the controller (C) as a command.

When either of the tact switches (16^ or 16B) is pressed and one pulse is output from the pulse generation circuit (17) to the controller (C), the controller (C) will stop supplying hot water. At the same time as the pulse is input, power is supplied from the dry cell battery (18) to the gear motor (14) and the electromagnetic solenoid (15), and the faucet (4) and the cutoff valve (
10) and gives an activation command to the ignition circuit (19) to cause the ignition plug (20) to spark for a set ignition time using power supplied from the dry battery (18). Then, the water faucet (4) becomes open and the heat exchanger (1
) starts, the water pressure response valve (
1) The valve is opened, and the gas fuel that has passed through the shutoff valve (10) is supplied to the burner (2) and the ignition burner (2A). As a result, the burner (2) is ignited, hot water supply starts, and the hot water supply state is established. In addition, the power supply from the dry battery (18) is as follows.
This is done temporarily for the gear motor (14) and continuously for the electromagnetic solenoid (15).

When hot water is supplied, the faucet (4), shutoff valve (10), and hydraulic valve (11) are kept open, thereby continuing hot water supply. After that, either the tact switch (168 or 16B) is pressed, and the number of Hals occurrences is 1.
When the next pulse is output from (17) to the controller (C), the controller (C)
supplies power to the gear motor (14), closes the water faucet (4), stops water supply, and turns on the electromagnetic solenoid (14).
5), the shutoff valve (10) is closed by the biasing force, and the burner (2) is extinguished. Further, the water pressure responsive valve (1l) closes as the water supply stops. As a result, hot water supply is stopped.

As a supplementary explanation, with this gas instantaneous water heater, the appliance itself (
Tact switch (16) on either the A) side or the hot water tap (8)
Even if you press A or 16B), the pulse generation circuit (1
7) outputs one pulse to the controller (C), and by inputting this pulse, the hot water supply state is switched to the hot water supply stop state, and the hot water supply stop state is switched to the hot water supply state. be. There are four switching patterns in total, and these patterns are shown in Figures 2 (a) to (
It is shown in d).

The hot water temperature can be adjusted by using the dial type temperature regulator (21) installed in the appliance body (A).
This is done by adjusting the opening degree of 3).

A potentiometer (22) is attached to this dial type temperature regulator (21), and the temperature adjustment value is outputted as a voltage value to the controller (C). In other words, the higher the temperature is set by turning the dial temperature regulator (21), the higher the voltage is output to the controller (C). Further, although not shown, the water faucet (4) and the regulating valve (13) are mechanically connected.
The opening degree of the regulating valve (13) is adjusted in conjunction with the opening degree adjustment of the faucet (4). Therefore, for example, when the dial-type temperature regulator (21) is turned to set a high temperature, a higher voltage than before is output to the controller (C), and the controller (C) ) to operate the gammotor (l4) and turn on the faucet (14).
Reduce the opening. As a result, the amount of water supplied decreases, the opening degree of the regulating valve (13) increases, and the amount of gas supplied increases, resulting in hot water being supplied at a higher temperature. As shown in FIG. 3, the main body (A) of the device is provided with a tank (T) in which a liquid detergent is placed at the sideways portion.

A rubber tube (23) is connected to the bottom of this tank (T), and as shown in Figure 4, this rubber tube (
23) is passed through the cover (24) of the flexible pipe (7), with the outlet at its tip facing the vicinity of the hot water tap (8). In the middle of the rubber tube (23) there is a spherical discharge operation part, and by pushing the discharge operation part (23a) by hand, liquid detergent can be supplied from the outlet.

In addition, in this example, the faucet (4) and the gear motor (14)
These constitute a water flow switching means (S1) that switches between a state in which water flows to the heat exchanger (1) and a state in which water flow is stopped, and includes a cutoff valve (10), an electromagnetic solenoid (15), Burner (2) with ignition circuit (19) and spark plug (20)
Combustion switching means (
S2).

[Another example]

There are various methods for instructing the hot water supply control means (C) to switch using the operation unit. For example, the appliance body (A) and the hot water tap (8)
In addition, there is a seesaw switch (16A) as the operation part,
(16B), and as shown in FIG. 5, these seesaw switches (16A) and (16B) are connected in series to the controller (C). Then, if either of the seesaw switches (16A) or (16B) is turned on and the water is turned on, the hot water supply is started, and when the water is turned off, the hot water supply is stopped.

In addition, multiple flexible tubes (7) are connected to the instrument body (A).
In the water heater derived from the above, all of the hot water taps (8) at the tip are equipped with operating parts such as tact switches, and these operating parts are used to switch between the hot water supply state and the hot water supply operation state as described above. You may also be able to do the same. In this case, the instrument body (A) may not be provided with an operating section. In addition, the operating section may be provided at any location that is easy for the user to operate.

Further, each of the operating units (168) and (16B) and the hot water supply control means (C) are generally connected by wire, but they may also be linked wirelessly.

Further, in carrying out the present invention, it is preferable that the appliance main body (A) is provided with a display section that displays whether the hot water supply is in the hot water supply state or the hot water supply stopped state.

Note that although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the water heater according to the present invention, and FIG. 1 is an overall configuration diagram, and FIGS. 2(a) to (d) are timing charts showing the relationship between command pulses and control states by tact switches. FIG. 3 is an external view, and FIG. 4 is a sectional view of the flexible tube. FIG. 5 is a schematic diagram showing another embodiment of the operating section. (1)...Heat exchanger for water heating, (2)...
... Burner, (C) ... Hot water supply control means, (16
A) , (16B)...Operation unit, (SL)
... Switching means for water flow, (S2) ... Switching means for combustion.

Claims (1)

[Claims] Water flow switching means (S1) that switches between a state in which water flows through the water heating heat exchanger (1) and a state in which water flow is stopped; and a burner (2) that heats the water heating heat exchanger (1). ) between an ignition state and an extinguishing state (S2)
and the water flow switching means (S1).
A hot water supply state in which water is passed through and the combustion switching means (S2) is in an ignition state;
) is in a state where water flow is stopped, and the combustion switching means (S
2) is provided with a hot water supply control means (C) that switches and controls the hot water supply stop state to extinguish the hot water supply state, and the hot water supply control means (C)
is an operation unit (16A) for instructing hot water supply and stop of hot water supply, (
16B), each of the operation parts (16A) and (16B) is configured to switch to the hot water supply stop state when the hot water supply state is in the hot water supply state, and to switch the hot water supply stop state to the hot water supply stop state. A water heater configured to instruct a switch to a hot water supply state when the water heater is in the hot water supply state.