JPS62120820A - Electromotive pump type pot - 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 an electric pump-type water heater that incorporates an electric pump and has a function of removing scale and the like.

(Prior art) A conventional electric pump type water heater is disclosed in Japanese Patent Application Laid-Open No. 11421-1983.
As shown in Publication No. 7, there is an electric pump that pumps air into the upper space of a container containing liquid, and the liquid is forced out of the container by increasing the air pressure in that space, as well as other 60-106416, the inner lid above the opening of the container has a ventilation hole that communicates with the above-mentioned space, and a vapor detection element is provided corresponding to the ventilation hole to detect the vapor when the liquid in the container boils. There was a device that activated the vapor detection element to remove limescale and carbon dioxide gas.

(Problems to be Solved by the Invention) According to the above configuration, the former does not have the function of removing scale and carbon dioxide gas, and the latter has a short boiling duration of about 10 to 20 seconds, and has the disadvantage that scale, etc. cannot be completely removed. was there.

(Means for Solving the Problems) The present invention has been made to eliminate the above drawbacks, and includes a container for storing a liquid, a heating device for heating the liquid, a heating device for heating the liquid, and a device for covering the upper surface of the container and for discharging steam. A lid body having a discharge port, and a valve body that opens and closes the discharge port.

The apparatus includes an electric pump communicating with the air discharge part at the bottom of the container, and is provided with a scale removal timer switch that controls the operation of the electric pump when the main heater of the heating device is operated.

(Function) By configuring as described above, it has a barbed structure that is most effective for removing limescale and carbon dioxide from water.In other words, an electric pump blows out air from the bottom of the container, creating bubbles. As the air rises through the water, it absorbs chlorine and carbon dioxide gas and releases them to the outside. In addition, it is possible to completely remove scale and carbon dioxide every time water is added and boiled, and furthermore, it can be controlled by a timer switch so that the user can set the level of scale removal as desired.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

The configuration of the embodiment is as shown in FIGS. 1, 2, and 6. Reference numeral 1 denotes a main body of the water heater, and 2 a container provided within the main body 1, which accommodates a liquid (hereinafter referred to as water or hot water) 23. 3 is a lid that covers the top surface of the opening of the container 1. Reference numeral 4 denotes a joint that connects the main body 1 and the lid 6 so as to be openable and closable.

A heating device 5 is provided on the outer periphery of the bottom of the container 2 to heat the water 23 inside the container 2, and has a main heater 6 and a heat-retaining heater 7 built therein. Reference numeral 8 denotes a hot water tap pipe, which opens at the bottom of the container 2 and communicates with the outside at the other end. 9 is an electric pump, and this electric pump 9 is equipped with a check valve 1.
1 and an air discharge part 12 formed at the bottom of the container 2 through an air pipe 10. 13 is a thermostat, which is installed on the outer bottom of the container 2, and controls the temperature of the water 97
OFF at ℃.

It turns on at 70°C and controls the energization of the main heater 6. In addition, the thermal heater 7 keeps the water temperature at 95℃.
It is controlled by a thermostat 25 that maintains the temperature. The lid has a gasket 14 on the lower surface to seal the container 2. Further, a hole 15 formed on the inside of the container 2 communicates with a steam discharge port 16 opened to the outside.

Patsukin in the middle 17. It has an opening/closing mechanism for the discharge port 16 having a valve body 18. A switch 19 is a three-terminal switch that controls the electric pump 9.

20 is when you press the hot water button with one hand.

Lower the valve body 1B, close the discharge port 16, and at the same time turn on the A terminal and C terminal of the switch 19 to turn on the electric pump 9.
do. When you release your hand, the hot water button 20 rises and switch 1
9 is the A terminal and the B terminal are ONL, and the A terminal is normally open.

The C terminal is turned OFF. 26 is a timer switch.

One end is connected between the thermo stand 16 and the main heater 6 which are connected in series, and the other end is connected to the B terminal of the switch 19. Reference numeral 27 denotes a timer switch knob, which is provided on the front surface of the upper part of the lid.As shown in FIG.
By appropriately aligning the mark 27B carved on the lid body 3, the OF
It is designed to be interlocked with the timer switch 26 that turns F. In this way, the scale removal timer switch 26 is provided to control the operation of the electric pump 9 when the main heater 6 of the heating device 5 is operated.

The operation of this embodiment having the above configuration will be explained.

Put 2 filters of water into the container 2, set the timer switch knob 27 for scale removal to the mark 27B and the appropriately selected scale 27A, and connect to the power supply.
25 are both turned on, the main heater 6 and the heat-retaining heater 7 are energized and heat the water 23. At this time, the timer switch 26 is turned on.

In addition, the A and B terminals of the switch 19 are in the ON state, the electric pump 9 is operated, and air is forced into the container 2 from the air discharge part 12 through the air pipe 10 and the backflow prevention valve 11. The air bubbles 24 violently eject into the hot water 23, rise, and reach the rear space 22 where it has a so-called aeration effect that absorbs limescale and carbon dioxide contained in the hot water 26.
It is discharged into the atmosphere from the discharge port 16. This aeration effect stops the electric pump 9 by turning off the timer switch 26 after a predetermined period of time has elapsed. The temperature of hot water 26 is 95℃
When the temperature reaches 97°C, the thermostat 25 turns OFF, which turns off the heat retaining heater 7. When the temperature reaches 97°C, the thermostat 13 turns OFF, which turns off the main heater 6.
The F'L heating is stopped, and the thermostat 25 then controls the heat-retaining heater 7 to keep the temperature constant at 95°C. At this time of keeping warm.

Thermostat 1 remains OFF, and electric pump 9 does not operate. To dispense hot water, press the dispense button 20 to close the discharge port 16 with the valve body 18 and turn on the switch 19.
The normally open A and C terminals are turned ON, the electric pump 9 is operated, and the air blown into the container 2 becomes bubbles 24 as described above. The bubbles 24 receive heat from the entire surface of the hot water 23 while rising through the hot water, efficiently raise the temperature in a short time, reach 95° C., expand in volume, and increase the pressure in the space 22. Due to this pressure increase, hot water 23 is discharged from the hot water supply pipe 8. Hot water button 20
When the switch 19 is released, the A and C terminals are turned OFF, and the electric pump 9 is stopped. When not closed, the check valve 11 prevents back flow from the container 2 and also prevents back flow of steam into the electric pump 9. At the same time, the valve body 18
5 is opened and communicated with the discharge port 16, the steam in the space 22 is released from the discharge port 16, and the hot water from the hot water pipe 8, which reaches atmospheric pressure, is stopped. Note that when the mark 27B is aligned with the scale 27A of the timer switch knob 27 indicating ``0'', the timer switch 26 is normally open, and even when the main heater 6 is operating, the electric pump 9 is not operated and descaling is not performed.

Further, when the "continuous" display scale 27A is set, the timer switch 26 is normally closed, and descaling is performed when the main heater 6 is operated. In this way, the user can arbitrarily select scale removal.

(Effects of the Invention) According to the present invention, the bottom of the container includes an air discharge section, an electric pump communicating with the air discharge section, and a main heater of a heating device that heats the liquid in the container.

By installing a scale removal timer switch that controls the operation of the electric pump when the main heater is operating, scale and carbon dioxide gas can be completely removed each time water is added and the water is boiled. This has the advantage that removal and removal time can be selected arbitrarily, delicious hot water can be obtained, and usability is improved.

[Brief explanation of drawings]

Figure 1 shows an electric pump type □□□- which shows one embodiment of the present invention.
-1; 2...container, 6...lid. 5... Heating device, 6... Main heater. 8...Hot water pipe, 9...Electric pump. 12...Air discharge part, 16...Discharge port. 18...Valve body, 26...Liquid. 26...Timer switch.

Claims (1)

[Claims] A container (2) containing a liquid (23), a heating device (5) for heating the liquid (23), and a lid (2) that covers the upper surface of the container (2) and has a steam discharge port (16). 3), a valve body (18) that opens and closes the discharge port (16), and a container (2).
), and the other end communicates with the outside.
8) and an electric pump (9) that communicates with the air discharge part (12) at the bottom of the container (2), and when the main heater (6) of the heating device (5) is operated, the electric pump (9) An electric pump type water heater characterized by being provided with a scale removal timer switch (26) that controls the operation of the water heater.