JP2550939B2 - Liquid heating vaporizer - Google Patents

Description

TECHNICAL FIELD The present invention relates to a liquid heating vaporizer equipped as a part of a mechanism such as a steam inhaler, a humidifier, and a burner device.

(B) Conventional Technology Conventionally, for example, a steam inhaler uses a heating vaporizer as shown in FIG.

This heating vaporization device is provided with a vaporization pressure take-out port 63 at an appropriate place on an upper portion of a closed container 62 having a pressure adjusting valve 61 at the upper portion, and a heater 64 is provided at a bottom portion or a lower peripheral surface portion of the container 62 for containing water. is there.

At the time of use, the heater 64 heats the water in the container 62 to boil and vaporize it, and the high pressure air in the container 62 is vaporized and taken out 63
To squirt from.

As a result, the high-pressure air decompresses the nozzle upper end opening 66 of the chemical liquid tank 65 located on the jet flow path, and sucks the chemical liquid in the tank 65 to the outside to atomize it.

(C) Problems to be Solved by the Invention In the above-described conventional heating vaporization device, the container itself that stores water for vaporization has a structure that serves as both a liquid supply unit and a vaporization unit. In addition, 50 to 60 cc of water is usually contained in this container in order to secure an appropriate inhalation time.

Therefore, when heating, all of the water in the container is heated at the same time, and it takes a long time from the start of heating to the start of vaporization, and the heat capacity in the container is large. Vaporization continues for a long time even after turning off. As a result, the user does not have to wait for a long time to start the vaporization when it is not known when to start it, and after waiting for the end of the long-lasting vaporization even after the end of atomization inhalation. Otherwise, there was a disadvantage such as not being able to clean up the device.

Furthermore, in the conventional device, since the liquid temperature in the container is the same temperature after the start of vaporization regardless of the heating capacity, it is difficult to control the vaporization amount and it is a control to control the liquid temperature in the container. There is a disadvantage that the device becomes expensive.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a liquid heating vaporization device which solves the above-mentioned problems of the conventional one and has a high vaporization efficiency of liquid and is safe.

(D) Means and Actions for Solving Problems In order to achieve this object, the liquid heating vaporization apparatus of the present invention has the following configuration.

A liquid supply section for containing a liquid therein, a vaporization section having a small-capacity vaporization chamber having a volume much smaller than that of the liquid supply section and a heating means, and a liquid supply section between the liquid supply section and the vaporization section. An equal pressure communication part that communicates the parts, a liquid guide part that communicates both parts between the liquid supply part and the vaporization part, and a vaporization pressure take-out part that draws out the air vaporized in the vaporization part to the outside. The heating means includes a heating plate and a heater for heating the heating plate and is disposed in a vertical direction, and the vaporization chamber is provided on the front side of the heating means in the vertical direction and the heating plate. It is formed so as to be formed between the wall surfaces facing each other with a slight gap.

In the liquid heating vaporization device having such a configuration, the water contained in the liquid supply unit is introduced into the small-capacity vaporization chamber via the liquid guiding unit. Then, only the water introduced into the small-volume vaporization chamber is instantly boiled by the heating means to be vaporized, and the high-pressure air in the vaporization chamber is discharged from the vaporization pressure take-out section.

At this time, the pressure in the vaporization chamber is higher than the pressure in the liquid supply section. This high-pressure air is introduced into the liquid supply section through the equal pressure communication section. As a result, the pressures of the vaporization chamber and the liquid supply section are always kept in the equal pressure state.

Thus, the water in the liquid supply unit is always sent to the vaporization chamber by natural gravity without interruption, and continuous vaporization is achieved in the vaporization chamber.

(E) Embodiment FIG. 1 is a perspective view showing a specific embodiment of the liquid heating vaporizer according to the present invention.

The heating vaporization device has a rectangular parallelepiped liquid supply unit 1 provided with a safety cap 16 having a pressure control valve on the upper side, and a vaporization pressure take-out unit 28 on the upper side facing the liquid supply unit 1 at a constant interval. Equipped with a flat hollow plate-shaped vaporization part 2,
The vaporization section 2 and the liquid supply section 1 are composed of an equal pressure communication section 3 and a liquid introduction section 4 which are continuous with each other.

FIG. 2 is a vertical sectional view of the liquid heating vaporizer shown in FIG.

The liquid supply unit 1 is a rectangular parallelepiped container having an upper opening, and a lid plate 11 is fastened to the upper opening with bolts to hermetically seal the inside. A through hole 12 is opened in the center of the upper surface of the lid plate 11, and a cylindrical flange 13 provided with a thread groove is provided upright on the outer periphery of the through hole 12. A safety cap 16 provided with an exhaust hole 14 at an appropriate position and equipped with a pressure adjusting valve 15 is detachably screwed to the flange 13.

The pressure regulating valve 15 provided in the safety cap 16 is constantly spring-biased in the direction of the through hole 12 by the spring 17. When the inside of the liquid supply unit 1 rises to an abnormal pressure, the pressure causes the valve 15 to rise against the spring 17 to open the through hole 12 and let the high pressure inside escape to the outside through the exhaust hole 14. Is set to.

The vaporization part 2 includes a flat plate-shaped body (wall surface) 21 and the body 21.
And a heating plate 22 that closes the opening surface of the.

FIG. 3 shows a state in which the heating plate 22 of the vaporization section 2 is removed and the flat plate-shaped body 21 is exposed.

The flat plate body 21 is provided with a horizontal flange 23 formed on the outer peripheral portion so as to slightly project upward (in the direction opposite to the liquid supply portion),
A concave portion 24 is formed in the one end (upper) surface, and the concave portion 24 is formed.
A communication hole 25 communicating with the equal pressure communication portion 3 is opened in the bottom wall, and a liquid guiding hole 26 communicating with the liquid guiding portion 4 is opened at the other end (lower end portion).

Further, an exhaust hole 27 is formed in the side wall (upper side wall) of the recessed portion 24 (see FIG. 2), and a nozzle 28 (vaporization pressure take-out portion) extending outward from the exhaust hole 27 is integrally projected. ing.

The heating plate 22 has a flat plate shape and is screwed to the flange 23 of the body 21. In this attached state, a small gap (vacant space) is set between the body 21 (including the concave portion 24) and the inner surface of the heating plate 22, and this vacant space is set to the small capacity vaporization chamber 29. Is said. Further, the upper recessed portion 24 that is closed by the heating plate 22 constitutes a hot water pool 30 that prevents discharge of the boiling liquid.

The equal pressure communication part 3 is cylindrical and has one end communicating with the upper peripheral part of the liquid supply part 1 and the other end communicating hole of the bottom wall of the recess 24.
It is in communication with 25. The liquid guiding part 4 is tubular and has one end communicating with the lower peripheral part of the liquid supplying part 1 and the other end communicating with the liquid guiding hole 26 of the container 21 to vaporize with the liquid supplying part 1. The part 2 and the part 2 are continuous.

A heater unit 5 is provided on the heating plate 22 of the vaporization unit 1.

The heater 5 is provided with a plurality of positive temperature coefficient resistive elements (for example, three posistors) having different Curie points.

As shown in FIG. ₁ , four power terminals (T ₁ , T ₂ , T ₃ , T ₄ ) are provided on the outer surface of the heater section 5. Also, as shown in Fig. 4, three posistors (PTC1, PTC2, PTC3) with different curie points are electrically connected to each other, and select the posistors with different curie points by the select switch. Is set so that the heating vaporization amount can be changed.

In addition, in the embodiment, the liquid supply part 1 and the vaporization part 2 are exemplified as being continuously integrated, but the present invention is not limited to this, and the vaporization part and the liquid supply part are separately formed, and for example, the vaporization part 2 is formed. May be formed into a pipe shape, the liquid supply unit 1 may be a cartridge system, and the liquid guiding unit 4 and the equal pressure communication unit 3 may be configured by ordinary pipes and detachably connected to each other in a liquid-tight manner.

Also, connect the pressure control valve 15 and the power supply of the heater to
Of course, when an abnormal pressure acts on 15, the heater unit 5 may be automatically turned off to immediately stop vaporization.

In the vaporizer having such a configuration, in use,
The safety cap 16 is removed from the lid plate 11, and water is filled in the liquid supply unit 1 through the lid plate through hole 12. Water is introduced into the small-capacity vaporization chamber 29 via the liquid introducing unit 4, and the liquid supply unit 1 and the vaporization chamber
The water levels of 29 are equal.

In this state, the water in the small capacity vaporization chamber 29 is heated by the heating plate.
The facing distance between the heating plate 22 and the body 21 that is in contact with the entire surface of the vaporization chamber 22 and constitutes the vaporization chamber 29 is extremely narrow. Therefore, now, the posistor of the heater unit 5 is selected by the power supply terminal (for example, when the vaporization amount is increased, the element PTC ₁ having a high Curie point is selected, and when the vaporization amount is small, the Curie point is selected). when applying a specific to) power vaporized amount select a lower element PTC _3, water in the vaporization chamber 29 is vaporized to boil instantaneously, high pressure air vaporization chamber is discharged from the vaporization pressure extraction section 28 . At this time, the pressure in the vaporization chamber 29 is higher than the pressure in the liquid supply unit 1. This high-pressure air is introduced into the liquid supply unit 1 through the equal pressure communication unit 3.

Thus, the pressure in the vaporization chamber 29 and the liquid supply unit 1 is always
The equal pressure state is maintained. As a result, the water in the liquid supply unit 1 is always sent to the vaporization chamber 29 by natural gravity without interruption, and continuous vaporization without interruption is achieved in the vaporization chamber 29.

Also, as the vaporizing chamber 29 is heated, the boiling liquid (hot water) rises in the direction of the vaporizing pressure take-out portion 28, but since the hot water pool 30 is provided above the vaporizing chamber 29, it boils in the hot water pool 30. The liquid is prevented from being discharged to the outside. Therefore, there is no risk of the user getting burned. Further, the heater portion 5 is composed of a plurality of posistors having different Curie points, and by appropriately selecting this, the vaporization amount can be changed at low cost without using a special temperature detection circuit and control means.

(F) Effect of the Invention In the present invention, as described above, since the capacity of the liquid supply unit is much larger than the capacity of the vaporization chamber, even if the liquid in the vaporization chamber is evaporated, the liquid is supplied from the liquid supply unit to the vaporization chamber. Is supplied to
Liquid vaporization continues.

Further, since the heating means is arranged in the vertical direction, and the vaporization chamber is formed between the vertical heating plate on the front surface of the heating means and the wall surface that is arranged to face the heating plate at a slight interval, Since the vaporization chamber is thin and one of the side walls forming the vaporization chamber is a heating plate, the heating area is large,
Efficiently heats the liquid in the vaporization chamber, and the time to generate steam is short. Moreover, since the heating plate applies heat not only to the liquid below but also to the vaporized vapor and air above, it is difficult for the vapor to cool and the utilization efficiency of the vapor is high.

Furthermore, since the heating plates are arranged vertically, the heating plate of the same area is much smaller than the one that is arranged horizontally below the vaporization chamber provided next to the liquid supply part. It can be a device.

[Brief description of drawings]

FIG. 1 is a perspective view showing a liquid heating vaporization apparatus according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view, and FIG. 3 is a state in which a flat plate-shaped body of a vaporization section is exposed. Partial perspective view showing the fourth
FIG. 5 is a circuit diagram of the heater portion, and FIG. 5 is a sectional view showing a conventional heating vaporization device. 1: Liquid supply part, 2: Vaporization part, 3: Equal pressure communication part, 4: Liquid transfer part,
5: Heater part, 15: Pressure control valve, 22: Heating plate, 29: Vaporization chamber.

Claims (4)

(57) [Claims] 1. A liquid supply section for containing a liquid therein, a vaporization section having a small capacity vaporization chamber having a volume much smaller than that of the liquid supply section, and a heating means, the liquid supply section and the vaporization section. And an equal pressure communication part that communicates both parts with each other, a liquid guide part that communicates both parts between the liquid supply part and the vaporization part, and vaporization that leads out the air vaporized in the vaporization part to the outside. A pressure take-out portion, the heating means is provided in a vertical direction with a heating plate and a heater for heating the heating plate,
Liquid heating vaporization characterized in that the vaporizing chamber is formed between the vertical heating plate on the front surface of the heating means and a wall surface which is arranged to face the heating plate at a slight interval. apparatus. 2. The liquid heating vaporization apparatus according to claim 1, wherein the heating means is provided on a side portion of the vaporization chamber between the liquid introducing portion and the equal pressure communicating portion. 3. The liquid heating vaporizer according to claim 1, wherein a hot water pool is formed in the small-volume vaporization chamber of the vaporizer. 4. The liquid heating vaporizer according to claim 1, wherein the heating means is provided with a plurality of positive temperature coefficient resistive elements having different Curie points.