JPH03210213A - Hot-water heater - Google Patents

Abstract

PURPOSE:To eliminate the fear of a a scald, and also, to prevent drops of water from wetting the peripheral floor by providing a vapor passage whose one end and other end are opened to an opening part of a container and the outside surface of a cover, in the cover, and providing a stagnant chamber of dewing water in the vapor passage. CONSTITUTION:An opening part of a container 2 which is provided with a heating device on the bottom part and has the opening part in the upper part is closed up airtightly by a cover 10. Also, a vapor passage 34 is which one end and the other end are opened to the opening part of the container 2 and the outside surface of the cover 10, respectively is provided in the cover 10. In its vapor passage 34, a stagnant chamber 30 of dewing water is provided. As a result, a scald, etc., are not generated and safety can be held, and also, it does not occur either that drops of water wet the peripheral floor surface.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a steam exhaust path for a water heater used in general households.

Conventional technology In recent years, water? Boiling-type water heaters are becoming mainstream, such as boiling water to a boil and then keeping it warm, or re-boiling it before use.

Conventionally, water heaters for this purpose generally had a configuration as shown in FIG. The configuration will be explained below. A substantially cylindrical container 2 with a metal heating element as a heating device at the bottom and an open top; a main body 4 which houses the container 2 and has a control board 3 forming an electric circuit at the bottom; A rising pipe 7 communicates with the prevention valve part 6 and the other end communicates with an outlet 6 provided at the bottom of the container 2, and a discharge pipe 7 communicates with the overflow prevention valve part 6 and opens to the outside of the main body 4. It consists of an outlet 8 and a lid 1o which is disposed on the upper part of the main body 4 so as to be openable and closable, and which is airtightly closed via an opening 'fI of the container 2 and a waterproof packing 9.

The lid 1o includes a lid body 11, a lid outer shell 12 attached to the upper part of the lid body 11, a decorative plate 13 having the waterproof gasket 9 on the outer periphery and attached to the lower surface of the lid body 11, and the lid outer shell 12. 1
A press plate 14 provided at the center of the press plate 14
a bellows-type air pump 15 that pressurizes the inside of the container 2 by pressure; and a check valve 16 that prevents air from flowing to the outside during pressurization.

A steam passage 17 whose end opens to the opening of the container 2, passes through the lid main body 11, and opens outward from the outer surface of the lid outer shell 12.
, a sphere 18 located in the middle of the steam passage 17 to prevent hot water from flowing out from the steam passage 17 in the event of a fall, and a lid 1 (
4-A hinge portion 19 that is rotatably attached to the main body 4. The steam passage 17 includes a first passage 20 having one end opened to the opening of the container 2 and attached to the lid body 11, and a first passage 20 having one end opened outward on the surface of the lid outer shell 12 and connected to the lid outer shell 12. The second passage 21 attached to the and the first passage 2o
and a third passage 22 that airtightly connects the second passage 21.

Reference numeral 23 denotes a temperature detection section which is arranged at the center of the outer bottom of the container 2 and is electrically connected to the control board 3. Reference numeral 24 denotes a lock knob for completely unlocking the lid 1o and the main body 4, and the lock is released when pinched from both sides.

In the above configuration, when the water in the container 2 is heated by the heating element 1 and boils, the temperature detection section 23 detects the boiling, and the control board 3 interrupts the current to the heating element 1. On the other hand, the steam generated by boiling inside the container 2 is.

The steam enters the steam passage 17 through the pressurizing hole 13a formed in the decorative plate 13 and the small gap 11ai between the decorative plate 13 and the lid main body 11, and is dissipated into the air through the second passage 21.

When the boiled water drops to a predetermined temperature, the temperature detection unit 23
detects this and controls the supply of electricity to the heating element 1 using the control board 3 to maintain the temperature of the water in the container 2 at a predetermined temperature. If you want to re-boil the water, press the boil button (not shown) and the boiling will be controlled in the same way as the boiling control described above.

Hot water is supplied from the container 2 to a cup or the like by pushing the presser plate 14 by hand and pumping an air pump 16 into the container 2. At this time, the check valve 16 prevents air leakage, and! Since the opening of the air 2 is hermetically closed by the waterproof gasket 9, air pressure is applied inside the container 2, and hot water flows through the outlet 6. The water is supplied from the discharge port 8 via the water vibrator 7 and the overflow prevention valve 5. Water is supplied into the container 2 by releasing the lock knob 24, rotating the lid 1o around the hinge portion 19, opening the lid 1o, and supplying water into the container 2.

Problems to be Solved by the Invention In such conventional water heaters, when steam is dissipated through the steam passage 17 during boiling or keeping warm, a portion of the steam condenses and adheres to the inner surface of the steam passage 17. During boiling, the steam may be blown away by the strong airflow and fly out from the steam passage 17, causing dangers and problems such as hot water droplets scattering and sometimes causing burns to the human body, and water droplets getting wet on the floor. there were.

The present invention is intended to solve the above-mentioned problems, and a first object of the present invention is to provide a retention chamber in which water droplets adhering to the steam passage are retained.

The second purpose is to rotate the water droplets in the retention chamber by the steam flow, and use the resulting centrifugal force to press the water droplets against the side wall surface, thereby preventing the water droplets from scattering and slowing down the outflow speed of the steam.

Means for Solving the Problems In order to achieve the above object, the present invention provides a container having a heating device at the bottom and an opening at the top.

The steam passage includes a lid that airtightly closes an opening of the container, and a steam passage that is disposed within the lid and has one end opening to the opening of the container and the other end opening to the outer surface of the lid.

A retention chamber for condensed water is provided in the steam passage.

Further, the retention chamber is formed in a substantially cylindrical shape, and a steam inlet is provided in a tangential direction on a side surface of the cylinder, and a steam outlet is provided in an upper surface approximately at the center of the cylinder.

According to the above-mentioned structure, the water droplets condensed in the middle of the steam passage stay in the retention chamber, so they are not scattered by the steam flow, and when the steam flow weakens after boiling, the water droplets are removed from the retention chamber. It will flow back into the container through the steam passage.

In addition, by forming the retention chamber in a cylindrical shape and providing the steam inlet in the tangential direction on the side of the cylinder, the steam that flows in moves circularly within the retention chamber, and the condensed water that flows in is centrifuged by the circular motion of the steam flow. It is pressed against the flilaE surface of the cylinder by force, and since the steam outlet is provided at the upper surface in the approximate center of the retention chamber, only the steam flows out, making it possible to completely prevent water droplets from scattering.

EXAMPLE 1 An example of the present invention will be described below with reference to FIG. Note that the same constituent members as in the conventional example are given the same numbers and their explanations are omitted.

Reference numeral 3o denotes a retention chamber formed into a substantially rectangular parallelepiped. A steam inlet 31 is provided at the bottom of the chamber, one end of which communicates with the first passage 2o, and one end of which communicates with the second passage 21 is provided on the upper surface. A communicating steam outlet 32 is provided. Retention chamber 3o
is composed of two members, upper and lower, and is formed by welding a flange portion 33 to maintain watertightness. A steam passage 34 is formed by the first passage 2o, the steam inlet 31, the retention chamber 30, the steam outlet 32, and the 20th passage 21.

To explain the operation of the above configuration, steam generated in the container 2 passes through the first passage 20 and the steam inlet 31 and flows into the retention chamber 3o. In this process, some of the water droplets that have condensed in the first passage 2o and the steam inlet 31 are carried by the steam flow to the retention chamber 3o, and the water droplets that have condensed in the retention chamber 30 remain in the retention chamber 30 as they are. Then, only the non-condensing vapor stream is released into the air from the vapor outlet 32 through the second passage 21. When boiling is detected by the temperature detection unit 23, the control board 3 cuts off the power supply to the heating element 1, and then the heating element 1 enters the heat retention state. In this state, the generation of steam is significantly reduced, and the generation of condensed water and the steam flow that carries the condensed water to the retention chamber 30 are also weakened. It flows into the passage 21 and refluxes into the container 2.

As a result, even if the steam condenses in the steam passage 34, the water droplets remain in the retention chamber 30, and the water droplets do not scatter into the air. Therefore, safety is maintained without causing burns, etc. As a result, the surrounding floor surface becomes more likely to get wet.

Next, another embodiment of the present invention will be described with reference to FIGS. 2 to 4. Reference numeral 36 is a retention chamber formed in a substantially cylindrical shape, and the lower part of one wall surface is connected to the tangent line of the side wall surface. A steam inlet 3e is provided in the direction.

Its outlet end communicates with the first passage 20.

Reference numeral 37 denotes a steam outlet extending upwardly from the upper surface of the retention chamber 36, and the outlet end thereof is communicated with the second passage 21. The retention chamber 36 is composed of two upper and lower members, and is formed by welding a flange portion 38 to maintain watertightness. The first passage 20, the steam inlet 3e, the retention chamber 36, the steam outlet 3, and the second passage 21 form a steam passage 39.

To explain the operation of the above structure, the steam generated in the container 2 passes through the first passage 20 and the steam inlet 36, and flows from the tangential direction of the lower side wall surface of the retention chamber 36 to the retention chamber 35 along the side wall surface. flow inward. The inflowing steam flows along the side wall surface of the retention chamber 35, and is eventually dissipated into the air through the second passage 21 from a steam outlet 37 provided substantially on the upper surface of the central shaft of the retention chamber 36. In this process, some of the water droplets that have condensed in the first passage 20 and the steam inlet 36 are carried to the retention chamber 36 by the steam flow, and the water droplets that have condensed in the retention chamber 35 remain in the retention chamber 36 as they are. Here, the water droplets staying in the retention chamber 36 are subjected to a centrifugal force due to the circular motion within the retention chamber 36 of the steam flow flowing in from the steam inlet 36, and are pressed against the side wall surface of the retention chamber 36, so that only the steam remains. will flow out through the steam outlet 37. The movement of water droplets flowing back into the container 2 from the retention chamber 36 after boiling is the same as in the first embodiment.

As a result, even if the steam condenses in the steam passage 39, the water droplets remain in the retention chamber 36 and are not scattered into the air. Therefore, safety is maintained without causing burns, etc. This also prevents the surrounding floors from getting wet.

Effects of the Invention As is clear from the above embodiments, the present invention provides a container equipped with a heating device at the bottom and having an opening at the top, a lid that airtightly closes the opening of the container, and the lid. A steam flow path and a metal fitting are arranged inside the container, with one end opening at the opening of the container and the other end opening at the outer surface of the lid.A retention chamber for condensed water is provided in this steam flow path, so that there is no water in the steam passage. The condensed water droplets remain in the retention chamber and are prevented from scattering into the air due to the steam flow during boiling.After boiling has finished, when the steam airflow weakens, the water droplets flow from the retention chamber through the steam passage into the container. Since the water flows back into the water, there is no risk of burns, and there is no risk of wetting the surrounding floor, making it possible to provide a water heater with excellent safety.

Further, in the present invention, by forming the retention chamber in a cylindrical shape and providing the steam inlet in the tangential direction on the side wall surface of the cylinder, the inflowing steam moves in a circular motion within the retention chamber, and due to the circular motion of the inflowing water droplets ti airflow. It is pressed against the side wall surface of the retention chamber by centrifugal force, and since the steam outlet is provided at the upper surface in the approximate center of the retention chamber, only the steam flow flows out, preventing water droplets from scattering.
This is a water heater with excellent layer safety.

[Brief explanation of drawings]

FIG. 1 is a partially enlarged side sectional view of a water heater according to an embodiment of the present invention, FIG. 2 is a partially enlarged sectional view of another embodiment of the same water heater, and FIG. Plane sectional view,
FIG. 4 is a perspective view of the same, and FIG. 5 is a side sectional view of the conventional water heater. 2... Container, 1o River... Lid, 30.35... River...
- Retention chamber, 34.39...Steam passage, 36. River...Steam inflow 0.37...Steam outlet.

Claims (2)

[Claims] (1) A container equipped with a heating device at the bottom and having an opening at the top, a lid that airtightly closes the opening of the container, and a lid that is disposed within the lid and has one end connected to the opening of the container, A water heater comprising a steam passage whose other end opens to the outer surface of the lid, and a retention chamber for condensed water provided in the steam passage. (2) The water boiler according to claim 1, wherein the retention chamber is formed into a substantially cylindrical shape, a steam inlet is provided in a tangential direction on a side surface of the cylinder, and a steam outlet is provided in an upper surface approximately at the center of the cylinder.