JPH0423484Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a liquid heating device that heats a liquid by utilizing reaction heat during a chemical reaction between two types of substances.

(Prior art) In recent years, as people's health awareness has improved, the style of leisure facilities has been shifting from indoor-oriented to outdoor-oriented. It is a means of heating liquids such as tea outdoors without a ready-made heat source such as gas or electricity. In other words, in the past, people prepared hot tea at home in advance, placed it in a thermos or other thermos, and carried it outdoors, recognizing that it was impossible to boil water outdoors. However, even though the tea was placed in a heat insulating container, the temperature of the tea would drop over time, and by the time I wanted hot tea, it was already cold. For this reason, there has been a desire to develop a liquid heating device that can easily heat liquids such as water even when ready-made heat sources such as gas or electricity cannot be procured.

(Purpose of the invention) The present invention has been made in response to the above-mentioned demands, and its purpose is to provide a liquid heating device that is simple, safe, and capable of high-temperature heating.

(Means for Achieving the Object) As a means for achieving the above object, the present invention provides a heating container with a reaction chamber having an appropriate volume, and a first substance such as water at the bottom of the reaction chamber. While containing a second substance that causes a chemical reaction and generates reaction heat when mixed with each other, an appropriate liquid is separately installed in the upper part of the reaction chamber and outside the heating container at an appropriate location in the heating container. A communication pipe capable of communicating with the vicinity of the bottom of the container is attached, and when the first substance and the second substance are in a mixed state, steam generated from the mixture of the first substance and the second substance is connected to the communication pipe. The liquid contained in the liquid container is blown out through the liquid container.

(Function) By using the above-mentioned means, the present invention has the following advantages: (1) The latent heat of condensation of steam accompanying the heat of reaction during a chemical reaction between two types of substances is used as a heating heat source, so it is highly safe; ) Since the high-temperature steam generated during the chemical reaction is blown directly into the heated object, the latent heat of condensation of the high-temperature steam is directly transferred to the heated liquid, thereby achieving a high level of heat transfer efficiency. ,
Effects such as making it possible to heat a liquid to a high temperature can be obtained.

(Embodiment) Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. 1 and 2.

(Structure) FIG. 1 shows an example in which the liquid heating device of the present invention is applied as a hand-held water heater Z. This water heater Z has a bottomed cylindrical liquid container 1 with a handle 45 whose interior is a hot water storage chamber 10 having an appropriate volume, and a heating container 2 which will be described in detail later.

The heating container 2 is integrally formed into a bottomed cylindrical shape from a heat insulating material such as expanded polystyrene resin, and the inside thereof is a reaction chamber 20 having an appropriate volume. A lid 4 is provided in the upper opening 2a of the heating container 2.
is removably attached. In addition, this lid body 4
The pair of flexible stopper pieces 41, 41 provided at two opposing positions in the radial direction of the lower surface 4a and the protrusion 21 protruding from the upper inner surface of the heating container 2 are mutually connected in the vertical direction. It is fixed to the heating container 2 side by engaging with it.

Further, a communication pipe 3 having an appropriate diameter is attached to the center of the bottom surface 22 of the heating container 2 in an airtight and watertight manner, passing through the bottom surface 22 in the vertical direction. This communication tube 3 has its upper end opening 3a opened into the upper space of the reaction chamber 20. Also,
The length of the communication tube 3 protruding downward from the bottom surface 22 of the heating container 2 is as shown in FIG.
into the upper end opening 1a of the liquid container 1.
When placed coaxially so that the upper end opening 1a is closed by the bottom surface 22 of the communication pipe 3, the lower end opening 3b of the communication pipe 3 is connected to the bottom cavity of the liquid container 1, that is, the bottom 10a of the hot water storage chamber 10. It is set appropriately according to the depth dimension of the liquid container 1 so that the liquid container 1 is located at the same position.

Furthermore, the bottom 2 of the reaction chamber 20 of this heating container 2
0a includes water (the first item in the scope of the utility model registration claim).
A second substance 5 that causes a chemical reaction and generates reaction heat when mixed with the substance (corresponding to the substance) is contained therein. In addition, in this example, the second substance 5
, calcium oxide (300g) and citric acid (30g)
It consists of a mixture of Also, this heating container 2
The depth dimension of the reaction chamber 20 is as shown in FIG.
Even when water (150 ml) for chemical reaction is put into the chamber and the water and the second substance 5 are mixed to form a slurry-like mixture 15, the upper end opening 3a of the communication pipe 3 is not connected to the mixing chamber. The upper opening 3a and the lower surface 4a of the lid 4 protrude above the body 15.
It is set appropriately so that a space of an appropriate size is formed between the two.

(How to use and its function) Next, how to use this water heater Z and its function will be explained.

To boil water, first, the heating container 2 is removed from the liquid container 1 in the state shown in FIG. 1, and a predetermined amount of water W to be heated is poured into the reaction chamber 20 of the liquid container 1 (see FIG. 2). Next, in the reaction chamber 20 of the heating container 2 which has been removed from the liquid container 1,
Remove the lid 4 and apply a predetermined amount (150 in this example).
ml) of water for reaction, and then close the lid 4 again.
is attached to the heating container 2, and then the heating container 2
is attached to the upper end opening 1a of the liquid container 1, and the lower end opening 3b of the communicating tube 3 is immersed in the heated water W (see FIG. 2). This completes the preparation for boiling water.

When water for generating a chemical reaction is introduced into the reaction chamber 20, the water and the second substance 5 are mixed with each other to form a slurry mixture 15, as shown in FIG. Between calcium oxide in substance 5, CaO + H2O → Ca(OH)2 + 15.2Kca/mo
An exothermic reaction is carried out based on the reaction formula shown below. At this time, if the water temperature is low, the exothermic reaction described above takes time, but in this example, since citric acid is mixed in the second substance 5, the reaction between water and calcium oxide In the initial stage, the exothermic reaction is activated by the action of the citric acid compared to the case where citric acid is not mixed, and the reaction temperature rises rapidly.

When the reaction temperature rises, the water evaporates due to the reaction heat, and steam V is actively generated from the mixture 15, and the inside of the reaction chamber 20 is filled with this steam V.
The water vapor V rising above the reaction chamber 20 is blown directly into the cooking water W in the liquid container 1 through the communication pipe 3 that opens at the top of the reaction chamber 20, and is mixed into the cooking water W. While floating, it comes into contact with the cooking water W and condenses, and acts to heat the cooking water W with its latent heat of condensation. By sequentially and continuously performing such a heating action due to the latent heat of condensation of the water vapor V, the temperature of the cooking water W is gradually raised to become high-temperature water.

In this way, when the steam V generated from the mixture 15 due to the exothermic reaction is directly blown into the cooking water W and the latent heat of condensation of the steam V is directly transferred to the cooking water W, the The heat of reaction between the reaction heat and calcium oxide is transferred to the cooking water W by direct conduction, or the latent heat of condensation of the water vapor V generated with the reaction heat is transferred to the cooking water by conduction through a container such as a pot. A greater heat transfer efficiency can be obtained than in the case where the heat is transferred to water W, and cooking water W can be heated to a faster and higher temperature accordingly.

According to experiments by the present inventors, 150 ml of water for the exothermic reaction and calcium oxide as the second substance were used.
Prepare 300g and 20g of citric acid, and add this water and the second
When heating 400 ml of water at 15°C using the latent heat of condensation of water vapor generated during the exothermic reaction with Substance 5, the temperature could be heated to about 100°C in about 5 minutes.

The water heater Z of the above embodiment has a liquid container 1 and a heating container 2 as one set, but the liquid heating device of the present invention has a liquid container 1 and a heating container 2 as a set in this way. It is not limited to things,
For example, it is of course possible to construct a liquid heating device using only the heating container 2 and use it to heat water contained in other ready-made coffee cups or the like.

(Effect of the invention) The liquid heating device of the invention has a heating container with a reaction chamber having an appropriate volume, and at the bottom of the reaction chamber.
A second substance that causes a chemical reaction and generates reaction heat by mutually mixing with a first substance such as water is contained, and is placed in an appropriate place in the heating container, in an upper part of the reaction chamber and outside the heating container. A communication pipe is installed that can communicate with the vicinity of the bottom of an appropriate liquid container installed separately, and when the first substance and the second substance are in a mixed state, the mixture of the first substance and the second substance is The present invention is characterized in that the generated steam is blown out into the liquid contained in the liquid container through the communication pipe.

Therefore, according to the liquid heating device of the present invention, (1) safety is improved because the latent heat of condensation of steam accompanying the heat of reaction during a chemical reaction between two types of substances is used as a heating heat source; ( 2) Since the high-temperature steam generated during the chemical reaction is blown directly into the heated object, the latent heat of condensation of the high-temperature steam is directly transferred to the heated liquid, thereby achieving a high level of heat transfer efficiency. is,
Effects such as making it possible to heat a liquid to a high temperature can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a water heater to which a liquid heating device according to an embodiment of the present invention is applied, and FIG. 2 is a diagram showing the usage state of the water heater shown in FIG. 1. DESCRIPTION OF SYMBOLS 1...Liquid container, 2...Heating container, 3...Communication tube, 4...Lid, 5...Second substance, 15...Mixture, 20...Reaction chamber.

Claims (1)

[Scope of utility model registration request] A second substance that causes a chemical reaction and generates reaction heat by mutually mixing with a first substance such as water is placed at the bottom 20a of the reaction chamber 20 of the heating container 2, which has a reaction chamber 20 having an appropriate volume inside. 5, and at a suitable location in the heating container 2, a communication pipe capable of interconnecting the upper part 20b of the reaction chamber 20 and the vicinity of the bottom of an appropriate liquid container 1 separately installed outside the heating container 2. 3, and the above first substance and second substance 5.
In the mixed state, the first substance and the second substance 5
A liquid heating device characterized in that the vapor V generated from the mixture 15 with the liquid is blown out through the communication pipe 3 into the liquid contained in the liquid container 1.