JP7245545B2 - Portable deodorizer - Google Patents

Description

The present invention relates to a portable deodorizer.

In hospitals, nursing homes for the elderly, etc., when a person requiring care who cannot go to the toilet by himself or herself uses a portable toilet, a foul odor is generated mainly due to ammonia. A similar phenomenon also occurs when pets are kept indoors.
Therefore, as a technique for removing this bad smell, there is an indoor deodorizing device disclosed in Japanese Patent Application Laid-Open No. 1-201259 (hereinafter referred to as "Patent Document 1"). In this deodorizing apparatus, at least two tanks selected from a water tank, an acidic liquid tank, and an alkaline liquid tank, an activated carbon tank, and a fragrance adding means are connected to a pipeline having an air inlet and an air outlet at both ends, from the air inlet to the air outlet. It is characterized in that they are arranged in order toward each other.

However, the indoor deodorizing device of Patent Document 1 is designed to be used by inserting the air intake between the toilet and the buttocks when necessary, or by driving the exhaust toward the vicinity of the toilet. It is not designed to be used all the time in a room where deodorization is required.

JP-A-1-201259

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a portable deodorizer that can be installed in a room where deodorization is required and always exhibits a deodorization function.

In order to solve this problem, the present invention enables means for neutralizing air containing an alkaline odor in an acidic chemical solution by diffusing it, and means for spraying an acidic chemical solution to the air that has passed through the acidic chemical solution. The main feature is that it is housed in a transportable container.

That is, the portable deodorizer according to the first aspect of the present invention includes a main body case, an air intake opening ground clearance adjustment mechanism provided at the upper part of the main body case, and an air intake opening provided in the air intake opening ground clearance adjustment mechanism and the main body. An exhaust opening provided in the case, a chemical tank for storing an acidic chemical provided in the main body case, an air pump connected to the intake opening, an air diffuser provided in the chemical tank, an air diffuser, and the air pump. an air suction pipe connecting the main body case upper inner wall and the upper surface of the acidic chemical solution, a chemical solution circulation pump provided at the bottom of the chemical solution tank, a solution solution pipe, and a chemical solution circulation pump It is characterized in that it is equipped with a chemical suction pipe to be connected, and that the vertical position of the intake opening can be varied by the intake opening ground clearance adjustment mechanism.

According to the first aspect of the present invention, indoor air containing odor is sent from the intake opening to the diffuser pipe by the action of the air pump. Since the air diffuser is provided in the lower portion of the chemical solution tank filled with the acidic chemical solution, air bubbles are released into the acidic chemical solution from the plurality of air diffusion holes provided in the air diffuser pipe. Most of the ammonia component contained in the air becomes a salt due to a neutralization reaction with the acidic chemical solution. Then, the air in which most of the ammonia has disappeared is released from the upper surface of the acidic chemical solution, and then the acidic chemical solution is sprayed into this air from the dispersion holes provided in the dispersion pipe. Ammonia remaining unneutralized by the sprayed acidic chemical solution is neutralized. The acidic chemical solution is sucked up to the diffuser pipe by the chemical circulation pump in the chemical solution tank and circulated. A citric acid aqueous solution is suitable as the acidic chemical solution. It is because it is excellent in safety and handleability.

The main odor in hospitals, nursing homes, etc. is that of ammonia. Ammonia has a lower specific gravity than pure air and stays near the ceiling of the room. Therefore, in the first portable deodorizer of the present invention, the air intake opening for taking in the odorous air is attached to the air intake opening ground clearance adjustment mechanism provided in the upper part of the main body case. It has a structure that allows odor-laden air to be taken into the main case from a high position. Furthermore, since the height of odor retention varies depending on the environment, the vertical position of the air intake opening can be adjusted by the air intake opening ground clearance adjustment mechanism. As a simple means for making it portable, it is conceivable to put the main body case on a cart with casters.

Further, in the portable deodorizer according to the second aspect of the present invention, the air intake opening ground clearance adjustment mechanism according to the first aspect of the present invention is a cylinder having a telescopic structure and having a hollow interior. The lower end is open at the upper part of the main body case , and an intake fan is provided at the upper end of the intake opening ground clearance adjustment mechanism, and the air taken into the intake opening ground clearance adjustment mechanism by the intake fan is taken into the main body case. characterized by

The intake fan installed at the upper end of the intake opening ground clearance adjustment mechanism draws air into the intake opening ground clearance adjustment mechanism. sent upwards . Then, the odor-laden air sent is neutralized by the acidic chemical solution sprayed from the spray pipe, as in the first invention.

Furthermore, the portable deodorizer according to the third aspect of the present invention is characterized in that, in the first or second aspect of the present invention, the air discharged from the diffuser tube is microbubbles or nanobubbles.

By providing a microbubble or nanobubble generator between the air pump and the air diffusion pipe, the air discharged from the air diffusion holes can be made into microbubbles or nanobubbles.
The neutralization reaction is accelerated when the air discharged from the diffusion holes becomes microbubbles or nanobubbles. As a generator for microbubbles or nanobubbles, a swirling flow method that generates bubbles by mixing gas and liquid and swirling at high speed, pressurizing the gas, dissolving it in the liquid, and releasing the pressure all at once. A pressurized dissolution method in which bubbles are generated by pressure, and a fine hole method in which bubbles are generated by applying pressure to fine holes such as orifices to allow gas to pass therethrough are employed.

A portable deodorizer according to a fourth aspect of the present invention is characterized in that, in any one of the first to third aspects of the present invention, the chemical liquid tank is provided with ultrasonic cavitation generating means.

By equipping the chemical liquid tank with the ultrasonic cavitation generating means, an ultrasonic cavitation phenomenon occurs in the acidic chemical liquid, and the neutralization reaction is accelerated.
For example, ultrasonic cavitation can be generated by installing an ultrasonic vibrator on the bottom surface of a chemical liquid tank and connecting an ultrasonic oscillator to the ultrasonic vibrator. The ultrasonic transducer may be suspended in the chemical solution.

The portable deodorizer of the present invention can be installed at a required location to efficiently deodorize the location.

1 is a configuration diagram showing a first embodiment of the present invention; FIG. It is a block diagram which shows 2nd embodiment of this invention. It is a block diagram which shows 3rd embodiment of this invention. It is a block diagram which shows 4th embodiment of this invention. It is a perspective view showing an example of the present invention.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram showing the first embodiment of the present invention. A chemical liquid tank 30 is provided in the main body case 10 , and an acidic chemical liquid 32 is stored in the chemical liquid tank 30 .
An air intake opening ground clearance adjustment mechanism 20 is provided on the upper part of the main body case 10, and an air intake opening 12 is attached to the upper part thereof. The air intake opening 12 is connected to an air pump 50 , and the air pump 50 and the diffuser pipe 40 are connected by an air suction pipe 44 .
On the other hand, a chemical liquid suction pipe 66 connected to a chemical liquid circulation pump 64 from the bottom of the chemical liquid tank 30 is connected to a liquid dispersion pipe 60 provided in the inner upper part of the main body case 10 .

The air 4 containing the odor of ammonia is sent to the air diffusion pipe 40 by the operation of the air pump 50 and then released as air bubbles B into the acidic chemical solution 32 from the plurality of air diffusion holes 42 . Most of the ammonia component in the odor-laden air 4 released into the acidic chemical solution 32 is neutralized by a chemical reaction with the acidic chemical solution 32, and then goes out from the upper surface of the acidic chemical solution 32 into the air. Then, the acidic chemical solution 32 is sprayed from a plurality of liquid dispersion ports 62 provided in the liquid dispersion pipe 60 into the air 6 containing a slight ammonia odor. The air 6 sprayed with the acid chemical solution 32 and containing a slight ammonia odor is discharged from the exhaust opening 14 to the outside of the main body case 10 after the remaining ammonia component is neutralized.

Since the air 4 containing the odor of ammonia often stays at a high position in the room, the installation height of the air intake opening 12 can be adjusted by the air intake opening ground clearance adjustment mechanism 20 . The intake opening 12 has a structure in which it can be installed up to about 3 m above the ground. The intake opening ground clearance adjustment mechanism 20 can be realized, for example, with a telescopic structure. Moreover, it can be realized by providing a rail portion for engaging with the mounting portion of the intake opening portion 12 over the upper and lower sides of the outer surface.

FIG. 2 is a configuration diagram showing a second embodiment of the present invention. A difference from the first embodiment is that an ultrasonic transducer 74 is provided at the bottom of the chemical liquid tank 30 . The ultrasonic oscillator 74 vibrates according to the ultrasonic signal from the ultrasonic transmitter 72 to generate an ultrasonic cavitation phenomenon in the acidic chemical liquid 32 .
The ultrasonic cavitation phenomenon accelerates the neutralization reaction of the air 4 containing the ammonia odor.

FIG. 3 is a configuration diagram showing a third embodiment of the present invention. The difference from the first embodiment is that the air bubbles B emitted from the diffusion holes 42 are microbubbles. A swirl-type microbubble generator 70 is installed between the air suction pipe 44 and the diffuser pipe 40, and the diffusion holes are formed by the action of the air 4 containing ammonia odor taken into the microbubble generator 70 and the acidic chemical solution 32. Microbubbles are emitted from 42 . The neutralization reaction is accelerated by releasing the air 4 containing the ammonia odor as microbubbles.

FIG. 4 is a configuration diagram showing a fourth embodiment of the present invention. The difference from the third embodiment is that the upper end of the intake opening ground clearance adjustment mechanism 20 is opened and an intake fan 46 is provided there. In addition to the path through which the acidic chemical liquid 32 is released from the air intake opening 12 as in the first to third embodiments, the main body case 10 passes from the air intake fan 46 through the air intake opening ground clearance adjustment mechanism 20. A path is provided for sucking the air 4 containing the odor of ammonia to the upper part of the interior of the chamber. The air 4 containing the ammonia odor is forcibly sucked directly into the main body case 10, so that the air 4 containing the ammonia odor is neutralized by two routes and the air in the main body case 10 is agitated. , the neutralization reaction is further accelerated.

Next, examples of the present invention will be described below.

FIG. 5 is an embodiment of the invention. A body case 10 is placed on a wheelbarrow 82 with casters attached with casters 80 for movement. A lid 16 and a telescopic intake opening ground clearance adjustment mechanism 22 are provided on the upper side of the main body case 10 . An air intake fan 46 is provided at the top of the telescopic air intake opening ground clearance adjustment mechanism 22, and an air pump 50 having the air intake opening 12 is provided at an intermediate portion of the telescopic air intake opening ground clearance adjustment mechanism 22. It is installed via a part fixture 48 . The telescopic air intake opening ground clearance adjustment mechanism 22 is telescopic, and the ground clearance of the intake fan 46 is adjustable. Also, the ground clearance of the air pump 50 having the intake opening 12 can be adjusted by the intake opening fitting 48 .

A lid 16 is provided on the upper surface of the main body case 10 so that the main body case 10 can be opened and closed. A ventilation port 18 containing a desiccant is provided on the side surface of the main body case 10, and the air inside the main body case 10 is discharged. Further, a citric acid supply device 36 is installed on the upper side of the body case 10, and citric acid is supplied into the body case 10 from here.

A citric acid aqueous solution 34 is stored in the chemical liquid tank 30 in the main body case 10 . An air diffuser 40 connected from the intake opening 12 through an air intake pipe 44 is installed in the citric acid aqueous solution 34 . A spray shower (dispersing pipe) 68 is provided at the tip of a chemical suction pipe 66 connected to a chemical circulation pump 64 installed in the citric acid aqueous solution 34 .

A distribution board 91 is installed on the side surface of the main body case 10 , and an AC power supply 90 is connected to the distribution board 91 . An air pump power line 92 , an intake fan power line 94 , and a chemical circulation pump power line 96 are branched from the distribution board 91 . A pH measuring device 98 is installed in the chemical tank 30 to constantly measure and display the pH value of the citric acid aqueous solution 34 in the chemical tank 30 .
Since each function of other constituent elements is the same as that of the embodiment of the present invention described above, description thereof is omitted.

"Experiment 1"
Here, an example of the results of an experiment conducted using a portable deodorant device (hereinafter referred to as "experimental device") configured in the same manner as in the example will be shown.
Set up the experimental machine in a sealed laboratory room with an area of about 21 square meters (2.7m wide x 3.3m long x 2.4m high), and start from 16:10 on March 10, 2021. The experimental machine was operated for 24 hours until 16:10 on March 11th. As the acidic chemical solution, 1400 g of citric acid dissolved in 28000 ml of water was used. In order to generate an odor, 20 ml of ammonia water having a pH of 12 was placed in a container with an open top and placed in a room.
The main body case has a capacity of 42 L, the installation height of the intake fan is 2140 mm above the floor, and the installation height of the air pump is 1900 mm above the floor.
Specifications of main components are shown in [Table 1].

上記の構成で行った実験結果を［表２］に示す。

[Table 2] shows the results of experiments performed with the above configuration.

According to the above experimental results, if the experimental equipment was not installed, the ammonia odor caused by the continuously generated ammonia should increase with the passage of time. As time passed, the ammonia odor decreased.

If the size of the present invention is further reduced, it can be used not only for indoor use, but also for deodorizing moving closed spaces such as in automobiles and elevators.

1 portable deodorizer
4 Air containing ammonia odor 6 Air slightly containing ammonia odor 10 Body case 12 Intake opening 14 Exhaust opening 16 Lid 18 Vent containing desiccant 20 Intake opening ground clearance adjustment mechanism 22 Telescopic intake opening ground clearance adjustment Mechanism 30 Chemical liquid tank 32 Acidic chemical liquid 34 Citric acid aqueous solution 36 Citric acid supply device 40 Air diffusion pipe 42 Air diffusion hole 44 Air intake pipe 46 Intake fan 48 Intake opening fitting 50 Air pump 60 Liquid dispersion pipe 62 Liquid dispersion hole 64 Chemical solution circulation pump 66 chemical suction pipe 68 sprinkler shower (liquid spray pipe)
70 Microbubble generator 72 Ultrasonic oscillator 74 Ultrasonic transducer 80 Moving casters 82 Wheelbarrow with casters 90 AC power supply 91 Distribution board 92 Power supply line for air pump 94 Power supply line for suction fan 96 Power supply line for chemical circulation pump 98 pH measuring instrument B bubbles

Claims (3)

A portable deodorizer,
body case and
an air intake opening ground clearance adjustment mechanism provided on the upper part of the main body case;
an air intake opening provided in the air intake opening ground clearance adjustment mechanism;
an exhaust opening provided in the main body case;
a chemical tank for storing an acidic chemical provided in the main body case;
an air pump connected to the intake opening;
an air diffuser provided in the chemical tank; and
an air suction pipe connecting the diffuser pipe and the air pump;
a spray pipe provided between the inner wall of the upper surface of the main body case and the upper surface of the acidic chemical solution;
A chemical circulation pump provided at the bottom in the chemical tank
a chemical suction pipe that connects the dispersion pipe and the chemical circulation pump;
with
The vertical position of the air intake opening can be varied by the air intake opening ground clearance adjustment mechanism,
The intake opening ground clearance adjustment mechanism is a hollow cylinder having a telescopic structure ,
a lower end of the air intake opening ground clearance adjustment mechanism is opened above the main body case;
An intake fan is provided at the upper end of the intake opening ground clearance adjustment mechanism,
A portable deodorizer, wherein the air taken into the air intake opening ground clearance adjustment mechanism by the air intake fan is taken into the main body case. 2. The portable deodorizer according to claim 1, wherein the air discharged from the diffuser is microbubbles or nanobubbles. 3. The portable deodorizer according to claim 1 or 2, wherein said chemical liquid tank is provided with ultrasonic cavitation generating means.

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