JPS5833888Y2 - fumigation equipment - Google Patents

Description

[Detailed description of the invention] This invention can be applied to the extermination and sterilization of sanitary pests such as mosquitoes, flies, cockroaches, etc. in rooms and other limited spaces, as well as to scenting limited spaces. This invention relates to a type of fumigation equipment that performs such treatment in a concentrated manner in a short period of time.

Conventionally, as a method for intensively exterminating sanitary pests in a short period of time, there is a so-called smoke extermination method that contains a chemical and a combustion agent, and evaporates the chemical in a short period of time intensively using the combustion heat and smoke of the combustion detergent. Although known, it has the following drawbacks.

In other words, in order to instantly evaporate a large amount of chemicals, it is necessary to use a combustion agent that generates highly toxic smoke, and the smoke produced by this combustion agent produces an irritating odor and is dangerous to the human body, as well as the flame caused by the combustion of the combustion agent. It is dangerous and has problems in terms of safety and convenience in use.

Furthermore, the heat of combustion causes the chemical to decompose, resulting in a decrease in effective volatilization rate, resulting in a decrease in medicinal efficacy and economic loss.

The present invention has been made with the aim of eliminating all of the above-mentioned drawbacks of the conventional technology. Specifically, the present invention accommodates a hydrated pyrogen on the outside of an open inner container that accommodates a fumigation agent containing a foaming agent. A sealed outer container having a space above the upper surface of the pyrogenic substance in the contained state is connected to the inner container using the side wall as a partition wall, and the upper end of the outer container has at least a part of the top surface of the outer container. Relating to a fumigation device characterized in that a water receptacle is provided as a bottom wall, the inside of the water receptacle is formed on the bottom wall, and the water receptacle is connected to a cavity in the outer container through a water injection hole. .

The present invention has the above-mentioned structure, and when it is used, when water is supplied to the water receiver of the outer container, the supplied water enters the cavity in the upper part of the outer container through the water injection hole in the bottom wall and generates heat. It comes into contact with a substance and causes it to generate heat.

As a result, the foaming agent-containing drug in the outer container is heated through its side wall due to the above heat generation, and when the decomposition temperature of the foaming agent is reached due to this heating, the foaming agent foams and, at the same time as this foaming, evaporation of the drug component occurs. , drug components are intensively evaporated in a short period of time.

By filling the limited space with this evaporated drug, a predetermined treatment depending on the medicinal efficacy can be performed.

Since this invention uses the above-mentioned transpiration method, the transpiration of the drug does not involve combustion or smoke generation, and it is safe and easy to use, and the thermal decomposition of the drug is almost non-existent. Since this does not occur, problems such as a decrease in effective volatilization rate caused by thermal decomposition can be solved, and the drug has the advantage of being able to exhibit its effects with high efficiency.

Furthermore, in the present invention, since the outer container is equipped with a water receptacle, it is possible to provide a separate water container, immerse the lower part of the fumigation device in this water container, and receive water from the water container. This eliminates the hassle and makes it extremely easy to use.

Furthermore, since the outer container has a cavity at the top, this cavity can absorb the volumetric expansion of the exothermic substance, and the air inside the cavity expanded by heating flows out through the water injection hole in the water receiver. Therefore, the inside of the outer container is always maintained at atmospheric pressure regardless of the expansion of such exothermic substances and air, thereby eliminating the risk of deformation or breakage of the outer container due to such expansion.

Further, when heating the foaming agent-containing chemical, the side wall of the inner container acts as a heating heat transfer surface, and has the advantage that the chemical can be heated with high thermal efficiency.

In the present invention, the inner container is of an open type, and a sealed outer container is connected to the outside of the inner container using the side wall of the inner container as a partition.

The partition wall of this inner container may be inclined as required.

The outer surface of the side wall of the inner container may be uneven to increase the surface area.

This inner container may be vertically divided into small portions, and each small portion may contain a different type of drug separately in its chamber.

This inner container has an opening at the upper end, and this opening has a
A protective cover with ventilation holes can be provided.

If the inner container is shallower than the outer container, the bottom of the inner container may be hollow, or a stand may be provided.

A water receiver is provided at the upper end of the outer container, the bottom wall of which is at least a portion of the top surface of the outer container. It communicates with the empty space at the top of the inside.

The water injection hole in the bottom wall of the water receiver also functions as a release hole for air in the upper space inside the outer container, which is heated and expanded when the water-added pyrogen generates heat.

In the water injection hole of the outer container and the upper opening of the inner container,
A seal can be applied to stabilize the state in which the medicine and pyrogen are contained and to prevent moisture absorption.

In the present invention, as the fumigation agent contained in the inner container, various agents conventionally used for purposes such as extermination of pests, sterilization, and scenting can be used.

The following are examples of typical drugs.

Insecticide 03-allyl-2-methylcyclopent-2-ene 4-
On-1-yl d-cis/trans-chrysanthemate (trade name: Pinamine Forte, manufactured by Sumitomo Chemical Co., Ltd.) 05-benzyl-3-furylmethyl d-cis/trans-chrysanthemate (common name: Smetrin: trade name Lithrone Forte (manufactured by Sumitomo Chemical Co., Ltd.) 03-phenoxybenzyl 2,2-dimethyl-3 (2
Pyrethroid insecticides such as ',2'-dichloro)vinylcyclopropane-carboxylate 00,0-dimethyl O-(2,2-dichloro)vinylphosphate (DDVP) 00,0-dimethyl O-(3-methyl- Organophosphorus insecticides such as 4-nitrophenyl) thionophosphate (hereinafter referred to as Sumithion, manufactured by Sumitomo Chemical Co., Ltd.) Carbamate insecticides such as ol-naphthyl N-methylcarbamate OO-impropoxyphenyl N-methylcarbamate Disinfectant O Salicylic acid o Quaternary ammonium salt (benzalkonium chloride) o Parachloro-meta-xylenol (PCMX) 02-
(4-thiazonitrile)-benzimidazole (TBZ
) Prevention, slight opening O α-promo cinnamic aldehyde ON-dimethyl-N-phenyl-N'=(fluorodichloromethylthio)-sulfamide Agriculture and horticultural fungicide ○ Tetrachloroisophthalonitrile o2,4-dichloro-6-( O-chloroanilino)-1
.

03.4 -Dichloropropionanilide Various commonly used additives such as efficacy enhancers, volatilization rate improvers, deodorants, fragrances, etc. can be optionally added to the above fumigation agent.

As the foaming agent added to the above-mentioned fumigation agent, various foaming agents that generate mainly nitrogen gas by thermal decomposition can be used.

This foaming agent preferably has a foaming temperature of 300°C or less.

Typical examples include azodicarbonamide (foaming temperature 200-210°C), benzenesulfonyl hydrazide (
Examples include foaming temperature of 100 to 160°C.

The amount of foaming agent added to the above drug can be selected from a wide range, but it is usually added in an amount of 50 to 2000 parts by weight, preferably 100 to 500 parts by weight, per 100 parts by weight of the drug.

In the present invention, as the exothermic substance that generates heat when it comes into contact with the water contained in the outer container, known types of exothermic substances can be used, and among these, calcium oxide generates heat to a high temperature of 150 to 250°C. , and does not produce harmful substances when generating heat, making it particularly suitable for this type of use.

The above-mentioned foaming agent-containing agent and pyrogen are stored in the above-mentioned inner and outer containers in advance or upon use.

When such items are placed in an inner and outer container during use, it is desirable to have a structure in which the inner and outer containers can be separated, or the bottom wall or earthen wall of the outer container can be removed.

The present invention will be described below with reference to drawings showing an example of the implementation of the present invention.

The drawing shows a sealed outer container 1 on the outside of an open inner container 2.
An example of an embodiment of the present invention is shown in which the following are arranged in a concentric manner.

In this embodiment, the foaming agent-containing fumigation agent 5 housed in the inner container 2 and the hydrated pyrogen 6 housed in the outer container 1 are adjacent to each other using the side wall 2a of the inner container 2 as a partition. .

A water receptacle 4 including the top surface 1a as a bottom wall is connected to the upper end of the outer container 1. It is communicated through a water injection hole 3 formed in the bottom wall of the receiver.

In use, when water is supplied into the water receptacle 4 at the upper end of the outer container 1, the water is injected into the cavity 1b of the outer container 1 through the water injection hole 3.

When water is injected into the outer container 1 from the water inlet 3 in this way, this injected water comes into contact with the exothermic substance 6 inside and generates heat.

Due to this heat generation, the foaming agent-containing chemical 5 placed in the inner container 2 is heated using the side wall 2a of the inner container 2 as a heat transfer surface, and when the blowing agent reaches its decomposition temperature due to this heating, the foaming agent decomposes. It foams, and at the same time as this foaming, a large amount of the drug evaporates instantly.

By filling the room with the evaporated medicine, predetermined treatments depending on the medicinal efficacy can be performed.

Also, at this time, the exothermic substance 6 and the gas in the space expand,
The former expansion can be absorbed by the cavity 1b, and the latter expansion can be absorbed by letting air escape from the water injection hole 3.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing one example of implementing the present invention, and Fig. 2 is a plan view showing an example of the implementation of the present invention.
FIG. In the figure, 1 is an outer container, 2 is an inner container, 3 is a water injection hole, 4 is a water receiver, 5 is a foaming agent-containing agent, and 6 is a pyrogen.

Claims (1)

[Scope of utility model registration request] A closed type outer container that stores a hydrated pyrogen and has a cavity above the upper surface of the pyrogen in this stored state is provided on the outside of the open type inner container that stores the fumigation agent containing a foaming agent, and is attached to the side wall of the inner container. are connected as a partition wall, and at the upper end of the outer container,
A water receptacle is provided that includes at least a portion of the top surface of the outer container as a bottom wall, and the inside of the water receptacle is communicated with a cavity in the outer container through a water injection hole formed in the bottom wall. A fumigation device characterized by: