Sulfuryl fluoride application control device for containers

Abstract

The invention discloses a sulfuryl fluoride application control device for containers. The sulfuryl fluoride application control device comprises an application device and a control system, wherein the application device comprises a base, a storage bottle and a heat absorber which are arranged on the base and a pressure sensor which is positioned between the storage bottle and the base; the storage bottle is connected with the heat absorber by a connection conduit; an electromagnetic valve is arranged on the connection conduit, and the connection conduit extends into the storage bottle; a channel which is communicated with the connection conduit is formed in the heat absorber; an outlet of the channel is an output port; the control system comprises a control box; the control box comprisesa shell and an electronic circuit board arranged in the shell; a microprocessor is arranged on the electronic circuit board; and the control box is connected with the pressure sensor and the electromagnetic valve by a signal wire respectively. The application dose and application time of sulfuryl fluoride can be controlled accurately, the application efficiency can be improved, and all operation processes can be completed only by one person, so the labor is saved.

Description

technical field [0001] The invention relates to a drug application control device, in particular to a drug application control device for applying sulfuryl fluoride to containers. Background technique [0002] The National Inspection and Quarantine Bureau stipulates that after empty containers are unloaded from the ship, they need to be disinfected to prevent foreign organisms (such as cockroaches, moths, mice, etc.) from invading our country. The container disinfection process is: the trailer drags the container to a pre-designated point (this designated point will be adjusted at any time with the flow of the cargo ship, that is, it is not fixed), and then the port staff sprays and disinfects it, from the trailer entering the spraying point to The entire process needs to be completed within 3 minutes when the trailer leaves the application point. When there are many cargo ships, this application speed needs to be further accelerated. Sulfuryl fluoride fumigation of contain...

AI Technical Summary

Problems solved by technology

The air pressure in the storage bottle filled with sulfuryl fluoride is as high as 300 kPa. The existing sulfuryl fluoride application method, which relies on experienced operators to judge the dosage subjectively through the opening time of the sulfuryl fluoride storage bottle, will It directly leads to the uneven spraying amount of the container. In addition, due to the objective factors of operator fatigue during the work process, the uneven spraying amount is even more serious. When there are many cargo ships, the uneven spraying phenomenon is even worse.

The uneven application amount will cause those containers with insufficient application amount to fail to achieve the disinfection effect, which may bring alien biological species, which is the result not allowed by the State Inspection and Quarantine Bureau

In order to achieve the fumigation effect, the current practice is to increase the amount of pesticides applied to the container, but because sulfuryl fluoride is a toxic gas, the price is expensive, and too much residual gas will not only cause direct economic losses, but also bring harm to humans, animals and plants. harm

[0004] Secondly, the melting point of sulfuryl fluoride is -137°C, and the boiling point is -55°C. It needs a lot of heat absorption when changing from liquid to gaseous state. After the sulfuryl fluoride storage bottle has been deflated six times in a row, the sulfuryl fluoride in the bottle is basically in a liquid state. It is difficult for ordinary sulfuryl fluoride storage bottles to release sulfuryl fluoride. The operator needs to put the storage bottle horizontally to apply the medicine. , it is also necessary to spray the storage bottle upside down. At this time, the deflation time will also increase accordingly.

[0005] In addition, sulfuryl fluoride is a toxic chemical substance, direct manipulation is likely to cause direct skin contact of the staff, which is harmful to the operator's body; in the existing spraying process, two people are required to operate, one person controls the valve of the storage bottle, and one People insert spraying guns into closed containers, wasting manpower

[0006] In addition, since sulfuryl fluoride is a chemical substance that is toxic and harmful to the human body under the control of the state, its dosage and flow need to be applied and reported to the management department. The existing tracking method is that the operator puts the sulfuryl fluoride in the existing There are hidden dangers in the designated storage room where the spraying site is fixed. If the spraying point needs to be changed or the spraying needs to be moved, the flow of the medicine will be unclear.

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