Carbon dioxide modified atmosphere insecticidal system

Abstract

The utility model relates to a carbon dioxide air-conditioning insecticidal system which comprises an air-conditioning chamber, the inner space of the air-conditioning chamber is divided into a pressure chamber and a buffer chamber by a first airtight gate, the buffer chamber is further provided with a second airtight gate, and a first electromagnetic pressure release valve is arranged between the pressure chamber and the buffer chamber. The buffer chamber is provided with a second electromagnetic pressure release valve used for being communicated with the atmosphere, an air inlet of the compressor is connected with the carbon dioxide air source, the pressure chamber and the buffer chamber through corresponding air inlet pipelines, and the pressure chamber is provided with a second electromagnetic pressure release valve used for being communicated with the atmosphere; air outlets of the compressors are connected with the atmosphere and the pressure chamber through corresponding air outlet pipelines; and the carbon dioxide air-conditioning insecticidal system further comprises a stored object moving tray for transferring stored objects between the pressure chamber and the buffer chamber. According to the utility model, the technical problems of carbon dioxide waste and greenhouse effect caused by direct emission of carbon dioxide after each use in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pest control for stored objects, in particular to a carbon dioxide gas-controlled insecticidal system. Background Art

[0002] Before storage, stored materials (such as packaged grain, tobacco, spices, etc.) need to be treated with insecticides to prevent pests from having a significant impact on the stored materials during storage.

[0003] In the prior art, the main means of pest control for stored materials include pesticides, heat treatment and high-pressure carbon dioxide gas controlled atmosphere. Among them, the use of pesticides to treat stored materials will cause certain pesticide residues; the use of heat treatment to kill pests will affect the quality of stored materials; the use of high-pressure (1~3.7MPa) carbon dioxide to treat stored materials will kill pests within a few hours without producing pesticide residues or affecting the quality of stored materials. Therefore, it can be used for pest control of stored materials with high economic added value, such as tobacco, spices and Chinese herbal medicines.

[0004] Traditional high-pressure carbon dioxide controlled atmosphere pest control refers to the use of a pressure chamber, first the stored materials are transported to the pressure chamber, then the pressure chamber is evacuated by a compressor, and then the carbon dioxide gas of a specified pressure is pumped into the pressure chamber by the compressor. After a period of stabilization, the carbon dioxide gas is discharged into the atmosphere, and then the stored materials are removed from the pressure chamber. This traditional high-pressure carbon dioxide controlled atmosphere method directly discharges carbon dioxide, which will not only cause a waste of carbon dioxide, but also increase the concentration of carbon dioxide in the atmosphere, bringing about a greenhouse effect. Utility Model Content

[0005] The utility model aims to provide a carbon dioxide controlled atmosphere insecticidal system to solve the technical problem in the prior art that carbon dioxide is directly discharged after each use, which easily causes carbon dioxide waste and produces a greenhouse effect.

[0006] In order to solve the above technical problems, a technical solution of a carbon dioxide gas controlled insecticide system in the utility model is as follows:

[0007] A carbon dioxide controlled atmosphere insecticidal system comprises a controlled atmosphere chamber, wherein the indoor space of the controlled atmosphere chamber is divided into a pressure chamber and a buffer chamber arranged on the left and right by a first airtight gate, wherein the first airtight gate forms a material passage opening for the pressure chamber when opened, and a second airtight gate is arranged on the buffer chamber, wherein the second airtight gate forms a material passage opening for the buffer chamber when opened, a first electromagnetic pressure relief valve is arranged between the pressure chamber and the buffer chamber, and the buffer chamber is provided with a second electromagnetic pressure relief valve for communicating with the atmosphere, the carbon dioxide controlled atmosphere insecticidal system further comprises a carbon dioxide gas source and a compressor, wherein the air inlet of the compressor is connected to the carbon dioxide gas source, the pressure chamber and the buffer chamber through respective corresponding air inlet pipelines, and each air inlet pipeline is respectively provided with an air inlet pipeline switch valve, the air outlet of the compressor is connected to the atmosphere and the pressure chamber through respective corresponding air outlet pipelines, and each air outlet pipeline is respectively provided with an air outlet pipeline switch valve, and the carbon dioxide controlled atmosphere insecticidal system further comprises a storage movable tray for transferring storage between the pressure chamber and the buffer chamber.

[0008] Furthermore, the first airtight gate is located on the right side of the pressure chamber, and the second airtight gate is located on the right side of the buffer chamber.

[0009] Furthermore, the first airtight gate is opened and closed by moving forward and backward; the second airtight gate is opened and closed by moving forward and backward.

[0010] Furthermore, a first electromagnetic pressure relief valve is arranged on the first airtight gate.

[0011] Furthermore, the storage object moving pallet includes a pallet support plate, and a pallet travel wheel driven by a travel wheel motor is arranged at the bottom of the pallet support plate.

[0012] The beneficial effects of the utility model are as follows: when the utility model is in use, the stored objects are first transported to the pressure chamber by using the storage object moving tray, the first airtight gate and the first electromagnetic pressure relief valve are closed, the pressure chamber is evacuated by the compressor, and then the compressor pumps carbon dioxide gas into the pressure chamber. After maintaining a certain pressure environment for a period of time, the insecticide is completed, the second airtight gate and the second electromagnetic pressure relief valve are closed, the buffer chamber is evacuated by the compressor, and then the first electromagnetic pressure relief valve is opened. After the pressures in the pressure chamber and the buffer chamber are consistent, the first airtight gate is opened, the storage object moving tray transports the stored objects to the buffer chamber, the first airtight gate and the first electromagnetic pressure relief valve are closed again, the compressor compresses the carbon dioxide gas in the buffer chamber back to the pressure chamber, the second electromagnetic pressure relief valve is opened, and after the air pressure in the buffer chamber is consistent with the external atmospheric pressure, the second airtight gate is opened, and the stored objects can be moved out through the storage object moving tray. When it is used next time, the storage material moving tray will be moved to the buffer chamber with the storage material first, and then the second airtight gate and the second electromagnetic pressure relief valve will be closed. After the buffer chamber is vacuumed, the first electromagnetic pressure relief valve will be opened. After the pressure in the pressure chamber and the buffer chamber are consistent, the first airtight gate will be opened, and the storage material moving tray will be moved to the pressure chamber with the storage material, and the compressor will then pump the carbon dioxide in the buffer chamber into the pressure chamber, thereby ensuring the working pressure of the pressure chamber to achieve the purpose of insecticide. From the above analysis, it can be seen that the carbon dioxide gas in the utility model is recycled during the gas conditioning process and will not be directly discharged, so there will be no waste of carbon dioxide gas, and no greenhouse effect will be caused due to the emission of carbon dioxide gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the coordination between the compressor, the air inlet pipeline and the air outlet pipeline in the utility model;

[0016] 1. Carbon dioxide cylinder; 2. Compressor; 3. Exhaust pipeline; 4. Intake pipeline; 5. Pallet support plate; 6. Storage moving pallet; 7. Pallet walking wheel; 8. Discharge position; 9. Second airtight gate; 10. First airtight gate; 11. Second electromagnetic pressure relief valve; 12. Buffer chamber; 13. Intake pipeline switch valve; 14. First electromagnetic pressure relief valve; 15. Pressure chamber; 16. Storage; 17. Exhaust pipeline switch valve; 18. Gas conditioning chamber. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0018] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0019] The utility model is a carbon dioxide gas controlled insecticide system. Figure 1~2 As shown: it includes a controlled atmosphere chamber 18, the indoor space of the controlled atmosphere chamber is divided into a pressure chamber 15 and a buffer chamber 12 arranged on the left and right by a first airtight gate 10, the first airtight gate 10 is opened or closed by moving forward and backward, and the first airtight lock chamber 10 is opened to form a material passage port of the pressure chamber, and the material can pass through the first airtight gate in the left and right directions to complete the entry and exit of the pressure chamber.

[0020] A second airtight gate 9 is provided on the right side of the buffer chamber. The second airtight gate 9 is opened or closed by moving forward and backward. When the second airtight gate 9 is opened, it forms a material passage port of the buffer chamber. A discharge position 8 is provided on the right side of the material outlet of the buffer chamber. The second airtight gate is opened to form a material passage port of the buffer chamber. The material can pass through the second airtight gate in the left and right directions to complete the entry and exit of the buffer chamber. That is to say, in this embodiment, the material enters and exits the pressure chamber through the material passage port of the pressure chamber, and enters and exits the buffer chamber through the material passage port of the buffer chamber.

[0021] A first electromagnetic pressure relief valve 14 is provided between the pressure chamber and the buffer chamber. In this embodiment, the first electromagnetic pressure relief valve 14 is provided on the first airtight gate 10. The buffer chamber is provided with a second electromagnetic pressure relief valve 11 for communicating with the atmosphere. In this embodiment, the first electromagnetic pressure relief valve and the second electromagnetic pressure relief valve are ordinary electromagnetic on-off valves. The carbon dioxide gas-controlled insecticidal system also includes a carbon dioxide gas source 1 and a compressor 2. The carbon dioxide gas source in this embodiment is a carbon dioxide gas cylinder. The air inlet of the compressor is connected to the carbon dioxide gas source 1, the pressure chamber 15 and the buffer chamber 12 through the respective corresponding air inlet pipelines 4. An air inlet pipeline switch valve 19 is provided on each air inlet pipeline. The air outlet of the compressor is connected to the atmosphere and the pressure chamber through the respective corresponding air outlet pipelines 3. An air outlet pipeline switch valve 20 is provided on each air outlet pipeline.

[0022] The carbon dioxide atmosphere controlled insecticide system also includes a storage moving tray 6 for transferring storage between the pressure chamber and the buffer chamber. The storage moving tray includes a tray support plate 5. The bottom of the tray support plate is provided with a tray travel wheel 7 driven by a travel wheel motor. There are four tray travel wheels, which are respectively provided at the four corners of the bottom of the tray support plate. The four tray travel wheels are also steering wheels, and the steering of the tray travel wheels is driven by a steering motor. When the travel wheel motor and the steering motor are working, they can drive the tray travel wheels to rotate and turn, thereby realizing the free movement of the storage moving tray. The storage moving tray is the AGV trolley in the prior art, which belongs to the prior art, and its structure will not be described in detail here.

[0023] When in use, open the first gate, the storage moving tray moves from right to left with the storage on its upper side into the pressure chamber, the storage can be tobacco, spices, Chinese herbal medicine or packaged grain, etc., then close the first gate, the compressor extracts the air in the pressure chamber and discharges it into the air, vacuumizes the pressure chamber, and then the compressor pumps the carbon dioxide gas in the carbon dioxide gas source into the pressure chamber to a certain pressure of 1~3.7MPa, and after a period of time, the storage is killed. Subsequently, the compressor vacuums the buffer chamber, and then opens the first electromagnetic pressure relief valve. When the pressure in the pressure chamber is consistent with the pressure in the buffer chamber, the first electromagnetic pressure relief valve is closed, the first airtight gate is opened, the storage moving tray moves to the buffer chamber, and then the first airtight gate is closed, and the carbon dioxide gas in the buffer chamber is pumped into the pressure chamber through the compressor's outlet pipeline. Subsequently, open the second electromagnetic pressure relief valve. When the pressure in the buffer chamber is consistent with the external atmospheric pressure, open the second airtight gate, and the storage moving tray can move the insect-killed storage from left to right to the discharge position.

[0024] After the storage moving tray is moved away, the new storage moving tray carrying the storage that has not been disinfected moves from right to left to the buffer chamber, and then the second airtight gate is closed, and the buffer chamber is evacuated by the compressor, and then the first electromagnetic pressure relief valve is opened. When the pressure in the pressure chamber is the same as that in the buffer chamber, the first airtight gate is opened, and the storage moving tray moves from right to left to the pressure chamber, and then the first airtight gate is closed, and the carbon dioxide gas in the buffer chamber is pumped into the pressure chamber by the compressor. If there is a pressure loss, the compressor can replenish gas into the pressure chamber through the carbon dioxide gas source. After a period of time, the atmosphere is controlled and insecticidal, and the previous discharge steps can be repeated. During the entire atmosphere control process, there is no emission of carbon dioxide gas into the atmosphere, so carbon dioxide gas can be saved and the corresponding greenhouse effect problem can be avoided.

[0025] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model according to the specific circumstances.

[0026] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0027] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A carbon dioxide atmosphere controlled insecticidal system, characterized in that: The invention comprises an atmosphere-controlled chamber, wherein the indoor space of the atmosphere-controlled chamber is divided into a pressure chamber and a buffer chamber arranged on the left and right by a first airtight gate, wherein the first airtight gate forms a material passage opening for the pressure chamber when opened, and a second airtight gate is arranged on the buffer chamber, wherein the second airtight gate forms a material passage opening for the buffer chamber when opened, and a first electromagnetic pressure relief valve is arranged between the pressure chamber and the buffer chamber, and the buffer chamber is provided with a second electromagnetic pressure relief valve for communicating with the atmosphere, and the carbon dioxide atmosphere-controlled insecticidal system also comprises a carbon dioxide gas source and a compressor, wherein the air inlet of the compressor is connected to the carbon dioxide gas source, the pressure chamber and the buffer chamber through respective corresponding air inlet pipelines, and each air inlet pipeline is provided with an air inlet pipeline switching valve, and the air outlet of the compressor is connected to the atmosphere and the pressure chamber through respective corresponding air outlet pipelines, and each air outlet pipeline is provided with an air outlet pipeline switching valve, and the carbon dioxide atmosphere-controlled insecticidal system also comprises a storage movable tray for transferring storage materials between the pressure chamber and the buffer chamber.

2. The carbon dioxide controlled atmosphere insecticidal system according to claim 1, characterized in that: The first airtight gate is located on the right side of the pressure chamber, and the second airtight gate is located on the right side of the buffer chamber.

3. The carbon dioxide controlled atmosphere insecticidal system according to claim 1, characterized in that: The first airtight gate is opened and closed by moving forward and backward; the second airtight gate is opened and closed by moving forward and backward.

4. The carbon dioxide controlled atmosphere insecticidal system according to claim 2, characterized in that: The first electromagnetic pressure relief valve is arranged on the first airtight gate.

5. The carbon dioxide controlled atmosphere insecticidal system according to any one of claims 1 to 4, characterized in that: The storage object moving pallet comprises a pallet supporting plate, and a pallet running wheel driven by a running wheel motor is arranged at the bottom of the pallet supporting plate.

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