JPH06154667A - Liquid atomizing device - Google Patents

Abstract

PURPOSE:To provide a liquid atomizing device having a system for ejecting the liquid by heating/evaporating it in an evaporator, whose use is not restricted for a specific liquid and has universal applicability, particularly for instance, is applicable to a material containing an unevaporated or unburned residual component such as city water. CONSTITUTION:This liquid atomizing device is constituted by supplying the liquid for atomizing to an evaporating chamber 32 provided in the evaporator 30 by forcibly feeding it by a pump 22, evaporating by heating the liquid brought into contact with an evaporating element 35 in the evaporating chamber 32 by a heater 36 and ejecting the liquid from a nozzle 34 and a hollow part 38 faced to the evaporating element 35 from lower part is provided in the evaporating chamber 32 and the pump 22 for forcibly feeding the liquid is connected to the hollow part 38. A discharging means (a discharge pipe 24, a stop valve 25 or the like) to discharge the unevaporated and unburned component in the liquid transferred from the evaporating element 35 to the hollow part 38 can be also provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid spraying device for vaporizing and spraying liquids such as water, deodorant liquid and disinfectant liquid.

[0002]

2. Description of the Related Art FIGS. 3 and 4 show a conventional example of this type of liquid spraying device. Water 2 for generating steam, for example, is stored in the water tank 1, and this water 2 is sucked up by the operation of the pump 4 through the water supply pipe 3 and introduced into the vaporizer 5. The water 2 introduced into the vaporizer 5 is vaporized here to become vapor and is ejected from the water vapor nozzle 13.

As shown in FIG. 4, in the internal structure of the vaporizer 5, the inside of the metal housing 6 is a vaporization chamber 7, and the vaporization chamber 7 is provided with an inlet 8 and an outlet 9. There is. The water inlet pipe 3 is connected to the inlet 8. The vaporization chamber 7 is filled with a vaporization element 10 using a metal sintered body or the like, and promotes vaporization and evaporation of the water 2 introduced into the vaporization chamber 7 from the water supply pipe 3. Also, the housing 6
A panel-shaped heater 11 is incorporated in the heater 1
The electricity 2 is heated to heat the water 2 in the vaporization chamber 7. Further, a temperature sensor 12 such as a thermistor is arranged at a suitable portion of the housing 6, and when the temperature in the vaporization chamber 7 reaches a set temperature T ° C. at which vaporization of the water 2 can be instantaneously caused by heating, Is detected and a detection signal is sent to a control device (not shown) such as a microcomputer to perform a series of controls. The vapor of the water 2 vaporized in the vaporization chamber 7 is ejected from the vapor nozzle 13 connected to the outlet 9.

Further, the apparatus is provided with a liquid tank 14, in which a spray liquid 15 such as a deodorant liquid or a disinfectant liquid is stored. The spray liquid 15 is sucked up by the liquid supply pipe 16 and ejected from the spray liquid nozzle 17 at the tip thereof. The spray liquid nozzle 17 faces in the direction orthogonal to the jet outlet of the steam nozzle 13 of the vaporizer 5, and by ejecting steam from the steam nozzle 13, a negative pressure is generated around the jet nozzle of the spray liquid nozzle 17. The spray liquid 15 is sucked out and ejected from the liquid supply pipe 16 using the negative pressure.

[0005]

However, in the vaporizer 5 used in such a conventional liquid spraying device, tap water cannot be used as the water 2 supplied to the vaporization chamber 7. That is, when the introduced tap water is passed through the vaporization element 10 in the vaporization chamber 7 and heated by the heater 11 to be vaporized and evaporated, Si (silicon) remains as a residual component in the vaporization element 10 and is accumulated. If clogging occurs, it will hinder the subsequent use.

In this respect, when oil other than tap water, for example, oil is used, the residual component produced by vaporizing and evaporating the oil is mainly C (carbon). In the case of carbon, the vaporizer 5 is burnt by heating the vaporizer 5 (heating the liquid without passing through the vaporization chamber 7), and the accumulation and accumulation on the vaporization element 10 can be stopped or can be stopped to a very small extent.

As described above, when the liquid which is vaporized and ejected has a non-combustible residual component such as tap water, which is low in purity and contains impurities, the above-mentioned Si, Ca,
There is a problem that residual components are generated by ions such as Na, and the use thereof is restricted to a specific liquid with high purity.

Therefore, the present invention is a system in which a liquid is heated and vaporized by a vaporizer and ejected, and in particular, it can be used even if it contains unvaporized and unburned residual components such as tap water. It is an object of the present invention to provide a versatile liquid spraying device that is not limited to the above liquids.

[0009]

[Means for Solving the Problems] In order to achieve the purpose,
In the liquid spraying device according to the present invention, in the case of claim 1, the liquid for spraying is pumped and supplied to the vaporization chamber provided in the vaporizer, and the liquid brought into contact with the vaporization element is heated by the heater in the vaporization chamber. The vaporizing chamber is provided with a hollow portion facing the vaporizing element from below, and a pump for pumping the liquid to the hollow portion is connected to the vaporizing chamber. The residual components are accommodated in the cavity below the vaporization element.

According to the second aspect of the present invention, the discharging means for discharging the non-evaporated residual component of the liquid contained in the cavity is provided.

[0011]

According to the present invention, in preparation for the introduction of the liquid from the liquid supply source, in the vaporizer, the vaporization element is heated by the energization of the heater (up to the set temperature at which the vaporization and evaporation of the liquid is possible). . The liquid sent from the liquid supply source is once introduced into the cavity of the vaporizer. Then, when the liquid enters and contacts the vaporization element, the liquid evaporates almost instantaneously. Liquid vapor pressure inside vaporization chamber (higher than outside air due to pumping)
Upon receiving it, it is ejected in a spray form from the nozzle. The residual component that has not been evaporated by heating is contained in the cavity.

According to the second aspect, the residual components contained in the cavity can be externally removed by the discharging means such as an opening / closing valve.

[0013]

Embodiments of the liquid spraying device according to the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, a water tank 20 (liquid tank) stores water 21 for vapor generation (liquid for spraying), and the water 21 is operated by a pump 22.
It is possible to suck up from 0 through the water supply pipe 23. The discharge side of the pump 22 is connected to the carburetor 30 through the water supply pipe 23, and the water is pumped up by the operation of the pump 22 and the carburetor 30 is connected.
It is designed to be supplied to.

The vaporizer 30, which is the main part of the present invention, has a metal housing 31 inside which forms a vaporization chamber 32, and the vaporization chamber 32 has an inlet 33 connected to the water supply pipe 23.
Is provided, and the spray nozzle 34 is provided on the outlet side. The vaporization chamber 32 is filled with a vaporization element 35 using a metal sintered body or the like, and promotes vaporization of the water 21 introduced into the vaporization chamber 32 from the water supply pipe 23. Further, a panel-shaped heater 36 is incorporated in the housing 31, and when the heater 36 is energized, the water 21 in the vaporization chamber 32 is discharged.
To heat. Further, a temperature sensor 37 such as a thermistor is arranged at a suitable portion of the housing 31, and when the temperature in the vaporization chamber 32 reaches a set temperature T ° C. at which the water 21 can be vaporized instantaneously by heating, Is detected and a detection signal is sent to a control device (not shown). Water vapor of the water 21 vaporized in the vaporization chamber 32 can be ejected from the spray nozzle 34.

A cavity 38 is provided in the housing 31 so as to be continuous with the vaporization chamber 32, and the cavity 38 faces the vaporization element 35 filled in the vaporization chamber 32 from below. The cavity 38 has an inlet 33 connected to the water supply pipe 23, and the vaporization chamber 32 communicates with the water supply pipe 23 via the cavity 38. That is, the water 21 from the water supply pipe 23
8 once and then the vaporization element 35 of the vaporization chamber 32
It comes in contact with.

On the other hand, on the discharge side of the pump 22, the carburetor 3
A discharge pipe 24 is provided so as to branch from the water supply pipe 23 between the discharge port 24 and the inlet port 33 of 0, and the discharge pipe 24 is provided with, for example, a normally-closed electromagnetic on-off valve 25. These members, together with the drain tank 26, form a discharging means. On-off valve 2
5 is suitable when the unvaporized and unburned residual components generated in the cavity 38 of the vaporizer 30 are caused to flow back to the water supply pipe 23 due to the difference in internal pressure of the cavity 38, as described below. The residual component can be discharged to the drain tank 26 by operating with a control signal from the control device at a timing and opening the valve to open the discharge pipe 24. The discharging means may be a structure that is directly connected to the housing 31 of the carburetor 30 and is electrically connected to the hollow portion 38.

Further, in the present invention, it is possible to provide the ion exchange filter 40 in the water supply pipe 23 on the upstream suction side of the pump 22. The ion exchange filter 40 is provided for the purpose of softening hard water and removing and collecting metal with respect to the water 21 sucked from the water tank 20, and the ion exchange resin, the selective ion adsorption membrane, and the electrolytic ion separation. Either a container or the like is used. That is, before the water 21 is supplied to the vaporizer 30, the water is passed through the ion exchange filter 40 once to remove the ion-binding soluble component, and the vaporizer 30
The purpose is to suppress the retention of crystalline hydrated salts.

Next, the operation and action of the liquid spraying device of the embodiment will be described.

When the apparatus is started, the start switch is turned on by turning on the power. A control signal from the control device based on this signal is sent as a signal for energizing the heater 36, and heating of the vaporization chamber 32 is started.

In the vaporization chamber 32, the temperature rises when electricity is supplied to the heater 36. The temperature of the vaporization chamber 32 is the vaporization element 35.
When the temperature rises to a set vaporization temperature T ° C. at which water 11 can be instantly vaporized, for example, around 180 ° C.,
The temperature sensor 37 detects this. The detection signal is sent to the control device, where the control based on the detection signal is performed,
When the operation signal is sent to the pump 22, the water 2 in the water tank 20
1 is once fed into the cavity 38 of the carburetor 30 through the water supply pipe 23. By the time it reaches the cavity 38, the pump 2
On the suction side of 2, the water 21 is passed through the ion exchange filter 40, and a certain amount of unnecessary components are removed by ion exchange.

In the vaporizing element 35 of the vaporizing chamber 32, the water 21 is heated to a temperature at which it can be vaporized, so that the cavity 3 is once provided.
The water 11 introduced into 8 is instantly vaporized through the vaporization element 35 to become steam. The water vapor receives the internal pressure of the vaporization chamber 32 (becomes higher than the outside air due to the pumping of the pump 22) and is ejected in a spray form from the spray nozzle 34. In the process of evaporating and ejecting, when the unvaporized residual component of the water 21 is generated in the vaporization element 35 despite passing through the ion exchange filter 40, the residual component is accumulated in the cavity 38. It

Once the spray is completed and the start switch of the device is turned off, the operation of the pump 22 is stopped,
As the water pressure in the water supply pipe 23 decreases, the control cavity 38
The non-evaporated residual components accumulated in the backflow back into the water supply pipe 23 due to the difference in internal pressure of the cavity 38. At this time, in response to the off signal of the start switch, a control signal is sent from the control device to the opening / closing valve 25 to open the normally closed valve and open the discharge pipe 24. Therefore, the residual component from the cavity 38 is
And is discharged to the drain tank 26.

[0024]

As described above, claim 1 or 2
According to the liquid spraying device of the present invention, even if the liquid to be sprayed tends to remain as an unevaporated component when heated and evaporated in the vaporizer, such as tap water, it can be treated as high as the conventional device. It is not limited to a specific liquid such as a pure liquid, and can be handled as various spray liquids such as deodorants, disinfectants, and oils other than tap water.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a liquid spraying device according to the present invention.

FIG. 2 is a side sectional view of a main part of the embodiment.

FIG. 3 is a block diagram of a conventional liquid spraying device.

FIG. 4 is a sectional view of a vaporizer used in a liquid spraying device of a conventional example.

[Explanation of symbols]

21 ... Water (spray liquid), 22 ... Pump, 23 ... Water supply pipe, 2
5 ... On-off valve, 26 ... Discharge pipe, 30 ... Vaporizer, 32 ... Vaporization chamber, 33 ... Inlet port, 34 ... Spray nozzle, 35 ... Vaporization element, 36 ... Heater, 37 ... Temperature sensor, 38 ... Cavity part .

Claims (2)

[Claims] 1. A liquid for atomization is pumped to be supplied to a vaporization chamber provided in a vaporizer, and in the vaporization chamber, a liquid brought into contact with a vaporization element is heated by a heater to be vaporized and jetted from a nozzle. In the liquid spraying device, a hollow portion facing the vaporization element from below is provided in the vaporization chamber, and a pump for pumping the liquid to the hollow portion is connected to the liquid spraying device. 2. The liquid spraying apparatus according to claim 1, further comprising a discharge means for discharging the non-evaporated component of the liquid that has moved from the vaporization element to the cavity.