A grain modified atmosphere vacuum filtration test device

Abstract

The utility model belongs to the field of grain storage equipment discloses a kind of grain controlled atmosphere filtration test device, including medicament filtration system and grain storehouse system;The medicament filtration system includes vacuum pump, hose and liquid gas washing bottle;The grain storehouse system includes grain storage pipe and plug, the quantity of plug is two, two plugs are respectively arranged at the pipe mouth of sealed grain storage pipe;The hose is connected with vacuum pump, and the vacuum pump is connected with one plug of grain storage pipe by hose, and the other plug of grain storage pipe is connected with liquid gas washing bottle.This scheme is integrated medicament filtration system and grain storehouse system, solves the vaporization problem of liquid medicament in grain storage environment, and simulates the implementation of liquid medicament on grain under actual warehouse condition by gas decompression filtration liquid.By gas washing bottle forced gasification, improve medicament distribution uniformity.

Description

Technical Field

[0001] This utility model relates to the field of grain storage equipment, and more specifically, to a grain controlled atmosphere filtration test device. Background Technology

[0002] Currently, damage from stored grain pests frequently causes grain loss and is a significant factor affecting safe grain storage. Chemical agents are commonly used to control these pests, with phosphine being particularly popular due to its high efficiency, broad spectrum, cost-effectiveness, and ease of use. However, the long-term, large-scale, and singular use of chemical pesticides has led to serious pesticide resistance in pests, environmental pollution, and pesticide residues, forcing researchers to seek environmentally friendly, safe for humans and livestock, and low-residue methods for controlling stored grain pests.

[0003] Against this backdrop, S-acetamiprid, as a novel insect growth regulator, has advantages over traditional chemical insecticides, including safety for humans and animals, low residue levels, rapid degradation, and high selectivity, making it a research hotspot in the field of stored grain pest control. However, as a liquid high-molecular-weight ester compound, S-acetamiprid is difficult to vaporize and fumigate, increasing the difficulty of sealing and protecting stored grain. Current technologies lack dedicated experimental devices for modified atmosphere diffusion of liquid pesticides, making it difficult to simulate the distribution and penetration effects of pesticides under actual storage conditions. Therefore, there is an urgent need for an experimental device that can efficiently achieve vaporization, uniform diffusion, and controlled filtration of liquid pesticides. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a grain controlled atmosphere filtration test device.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A grain controlled atmosphere filtration test device includes a reagent filtration system and a grain storage system;

[0007] The pharmaceutical filtration system includes a vacuum pump, tubing, and a liquid washing bottle;

[0008] The grain storage system includes a grain storage pipe and two plugs, which are respectively installed at the opening of the sealed grain storage pipe.

[0009] The tubing is connected to a vacuum pump, which is connected to one of the stoppers of the grain storage tube via the tubing. The other stopper of the grain storage tube is connected to a liquid gas washing bottle.

[0010] As a further description of the above technical solution: the vacuum pump is a circulating water multi-purpose vacuum pump, the vacuum pump is equipped with a double vacuum connector, the hose has a Y-shaped structure, one end is connected to the double vacuum connector of the vacuum pump, and the other end is connected to the plug.

[0011] As a further description of the above technical solution: a circulating water basin is provided at the bottom of the vacuum pump.

[0012] As a further description of the above technical solution: the liquid gas washing bottle includes a bottle body, a sealing cap is provided on the bottle body, a sealing head is provided on the top of the sealing cap, an insertion port is provided on the sealing head, a long tube and a short tube are provided on the sealing cap, the long tube extends to the bottom of the inside of the bottle body, and the short tube extends to the top of the inside of the bottle body.

[0013] As a further description of the above technical solution: the inner diameter of the grain storage pipe is 102mm and the wall thickness is 6mm. The opening of the grain storage pipe is sealed by a plug with a size of 89×111×53mm.

[0014] As a further description of the above technical solution: the tubing has a diameter of 8mm and a length of 1m.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This solution integrates a pesticide filtration system with a grain storage system to address the challenge of liquid pesticide vaporization in grain storage environments. It simulates the application of liquid pesticides to grain under real-world storage conditions by using gas decompression filtration. Forced vaporization via a gas washing bottle improves the uniformity of pesticide distribution. The sealed design reduces the risk of leakage, making it suitable for high-precision testing. Furthermore, its simple structure and low cost allow for its application in pest control research in laboratories and small grain silos. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the grain storage pipe of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the liquid gas washing bottle of this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Vacuum pump; 2. Hose; 3. Grain storage tube; 4. Liquid gas washing bottle; 401. Sealing head; 402. Insertion port; 403. Sealing cap; 404. Bottle body; 405. Long tube; 406. Short tube; 5. Stopper; 6. Circulating water basin. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3 A grain controlled atmosphere filtration test device includes a reagent filtration system and a grain storage system. The reagent filtration system consists of a vacuum pump 1, a hose 2, and a liquid washing bottle 4; the grain storage system consists of a grain storage pipe 3 and a stopper 5.

[0024] Two stoppers 5 are provided, each positioned at the opening of the sealed grain storage tube 3 to ensure a tight seal. The grain storage tube 3 has an inner diameter of 102 mm and a wall thickness of 6 mm. The stopper 5 measures 89 × 111 × 53 mm. A hose 2 is connected to a vacuum pump 1, which in turn connects to one of the stoppers 5 in the grain storage tube 3 via the hose 2. The other stopper 5 is connected to a liquid gas washing bottle 4, forming a closed gas path.

[0025] The vacuum pump 1 is a circulating water multi-purpose vacuum pump with a power of 180W and dimensions of 400×280×420mm. Vacuum pump 1 is equipped with a double vacuum connector, and a circulating water basin 6 is located at its bottom to reduce noise and improve stability. The hose 2 has a Y-shaped structure, an 8mm diameter, and a 1m length; one end connects to the double vacuum connector of vacuum pump 1, and the other end connects to the plug 5. The circulating water basin 6 maintains cooling for vacuum pump 1, while the Y-shaped hose 2 balances the airflow.

[0026] Furthermore, the liquid gas washing bottle 4 includes a bottle body 404 with a capacity of 1000ml. A sealing cap 403 is provided on the bottle body 404, and a sealing head 401 is provided on the top of the sealing cap 403. The sealing cap 403 and sealing head 401 are designed to prevent gas leakage and ensure the system's airtightness under vacuum conditions. An insertion port 402 is provided on the sealing head 401, which facilitates connection to other equipment, allowing for flexible assembly and reliable sealing. A long tube 405 and a short tube 406 are provided on the sealing cap 403. The long tube 405 extends to the bottom of the inside of the bottle body 404, and the short tube 406 extends to the top of the inside of the bottle body 404. The long tube 405 extending to the bottom of the bottle body 404 allows the gas to fully contact the liquid reagent through bubbling, improving vaporization efficiency and ensuring the reagent is evenly dispersed in the gas flow. The short tube 406 is located above the liquid surface to prevent backflow of liquid, outputting only the reagent-containing gas and ensuring gas purity.

[0027] Working principle:

[0028] Assembly: Seal both ends of the grain storage tube 3 with plugs 5, connect one side to the vacuum pump 1 through the hose 2, and connect the other side to the liquid washing bottle 4.

[0029] In use: Fill the liquid gas washing bottle 4 with S-tebufenozide formulation, load the grain storage tube 3 with test grain, assemble the test equipment in sequence, turn on the vacuum pump 1, and the gas enters the bottom of the bottle 404 through the long tube 405, forming bubbles in the S-tebufenozide liquid, promoting the volatilization / vaporization of the agent. The drug-containing gas accumulates above the liquid surface and is led out to the grain storage tube 3 through the short tube 406. When the gas passes through the grain layer in the grain storage tube 3, the agent is evenly adsorbed on the grain surface, achieving the fumigation or protective effect required for the test.

[0030] This device efficiently and safely converts liquid pesticides into a controllable gaseous form through bubbling gasification, gas-liquid separation, and a sealing structure. It can achieve uniform diffusion of the pesticide into the grain pile, simulating the actual controlled atmosphere environment of storage, and is suitable for testing the permeability and insecticidal effect of liquid pesticides.

[0031] In addition, when shutting down, first disconnect the grain storage pipe 3 and the liquid washing gas bottle 4, and then turn off the vacuum pump 1 to prevent liquid backflow.

[0032] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A modified atmosphere packed food product vacuum filtration test apparatus, characterized by: Including medicine filtration system and grain storage system; The medicine filtration system comprises a vacuum pump (1), a hose (2) and a liquid gas washing bottle (4); The grain storage system comprises a grain storage pipe (3) and two plugs (5), and the two plugs (5) are arranged at the pipe openings of the sealed grain storage pipe (3) respectively. The hose (2) is connected with the vacuum pump (1), one of the plugs (5) of the grain storage pipe (3) is connected with the vacuum pump (1) through the hose (2), and the other plug (5) of the grain storage pipe (3) is connected with the liquid gas washing bottle (4).

2. A modified atmosphere pack test apparatus for foodstuffs according to claim 1 wherein: The vacuum pump (1) is a circulating water type multi-purpose vacuum pump, is provided with double vacuum joints, and the hose (2) is in Y-shaped structure, one end of which is connected with the double vacuum joints of the vacuum pump (1), and the other end is connected with the plug (5).

3. A modified atmosphere pack test apparatus for foodstuffs as claimed in claim 2 wherein: The bottom of the vacuum pump (1) is provided with a circulating water basin (6).

4. The modified atmosphere pack test apparatus of claim 1, wherein: The liquid gas washing bottle (4) comprises a bottle body (404), a sealing cover (403) arranged on the bottle body (404), a sealing head (401) arranged at the top of the sealing cover (403), a pipe opening (402) arranged on the sealing head (401), a long pipe (405) and a short pipe (406) arranged on the sealing cover (403), wherein the long pipe (405) extends to the inside bottom of the bottle body (404), and the short pipe (406) extends to the inside upper portion of the bottle body (404).

5. The modified atmosphere pack test apparatus of claim 1, wherein: The inner diameter of the grain storage pipe (3) is 102 mm, the wall thickness is 6 mm, the pipe opening of the grain storage pipe (3) is sealed through the plug (5), and the size of the plug (5) is 89*111*53 mm.

6. A modified atmosphere pack test apparatus for food products as claimed in claim 1, wherein: The caliber of the hose (2) is 8 mm, and the length is 1 m.

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