Fumigation medicament vaporization administration device

Abstract

The invention relates to a fumigant vaporization dosage device which is provided with a heater (11). The heater (11) is communicated with a water tank (5) through a water inlet pipe (15) and a water outlet pipe (12). The water inlet pipe (15) is connected with the heater through a water pump. A drain pipe (10) is arranged on the water tank (5), and a twist coiled pipe (3) is arranged in the water tank (5). The air outlet (1) of the twist coiled pipe (3) is connected with a dosage pipe through a valve, and a air outlet (2) is connected with a steel cylinder through a valve. Comparing with prior technology, the invention has the advantages of quick heating speed, good vaporization effect, strong temperature controllability, good heat preservation effect and that the invention does not be limited by site conditions. The invention is simple and convenient to operate, is safe and reliable, and has a strong practicability and a good application effect.

Description

Technical field: [0001] The invention relates to a fumigant agent vaporization device which controls and vaporizes the fumigant agent during the fumigation treatment process. Background technique: [0002] With the advancement of international trade liberalization, the impact of fumigation on trade has become more and more prominent. Currently, methyl bromide is the most commonly used fumigant for fumigation and pest removal in developing countries. It has good diffusivity and penetration, and is highly toxic to insects and nematodes. Under normal conditions, methyl bromide is stored in steel cylinders in a high-pressure liquid state. Because methyl bromide has a low boiling point (3.56°C) and a large latent heat of absorption, it absorbs heat and vaporizes when it is released from the steel cylinder, reducing the temperature of the surrounding environment and making subsequent vaporization difficult. Completely, therefore, dosing methyl bromide directly without vaporizatio...

AI Technical Summary

Problems solved by technology

Under normal conditions, methyl bromide is stored in steel cylinders in a high-pressure liquid state. Because methyl bromide has a low boiling point (3.56°C) and a large latent heat of absorption, it absorbs heat and vaporizes when it is released from the steel cylinder, reducing the temperature of the surrounding environment and making subsequent vaporization difficult. Completely, therefore, dosing methyl bromide directly without vaporization not only affects the speed of dosing, but also affects the quality of fumigation, making it difficult for fumigation treatment to meet the qualified requirements

Especially in the northern regions of our country, after entering winter, the temperature drops to more than ten or tens of degrees below zero, and more than 90% of the fumigants thrown out cannot be vaporized, which cannot kill insects and rodents. The vaporization of methyl bromide has become a winter fumigation Deal with outstanding problems at work

[0003] At present, most of the existing vaporization dosing devices in China use liquefied gas heating or electric heating. Among them, liquefied gas heating has potential safety hazards due to the existence of open flames, while electric heating is limited by on-site power supply conditions, and the heating time is long.

The above heating methods all have the disadvantages of low vaporization efficiency, slow heating, poor temperature controllability, and being restricted by site conditions.

The low vaporization efficiency of dosing will easily lead to poor fumigation effect, or even failure of fumigation, which will cause losses to customers or trading partners, and have a negative impact on port trade

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