Large-flux low-temperature plasma jet combined generator

Abstract

The utility model discloses a large-flux low-temperature plasma jet combined generator, which belongs to the technical field of low-temperature plasma sterilization and comprises a plurality of low-temperature plasma jet unit generators, and each unit generator is provided with an internal conical high-voltage electrode and a stepped conical shell ground electrode. The insulating layer is formed by connecting the two layers through an insulating material; a shell ground electrode is connected into a whole through a combined generator metal supporting plate and is connected with a ground electrode of the frequency modulation high-voltage power supply; and the internal high-voltage electrode is connected with the high-voltage output end of the frequency modulation high-voltage power supply through a special linking piece. The internal metal material of the special linking piece has no sharp corner, and the external part of the special linking piece is made of a high-insulation material capable of withstanding 25kV voltage. Compared with an existing low-temperature plasma jet unit generator, the large-flux low-temperature plasma jet combined generator has the advantages that the production efficiency of low-temperature plasma airflow is greatly improved, and a basic component is provided for special technical equipment such as a large-flux low-temperature plasma active water generator.

Description

Technical Field

[0001] This utility model belongs to the field of low-temperature plasma cold sterilization technology, specifically relating to a high-flux low-temperature plasma jet combined generator. Background Technology

[0002] Low-temperature plasma sterilization features broad-spectrum sterilization, no chemical residue, and green safety, making it suitable for use in the food and public health industries to replace traditional chemical sterilizers such as sodium hypochlorite for the purpose of cold sterilization and preservation of fresh agricultural products. Low-temperature plasma jet generators are the basic components of low-temperature plasma sterilization, but currently, they are all experimental devices with very small production volumes. Invention patent publication number CN110913553B discloses a high-efficiency plasma-activated water generation device, consisting of a high-voltage power supply, a plasma (jet) generator, a water container, an air pump, and a water pump. The plasma (jet) generator includes a ground electrode, a high-voltage electrode, and a dielectric tube. The ground electrode and high-voltage electrode are connected to the high-voltage power supply, but this experimental unit has a very small processing capacity and cannot meet the needs of large-scale production cleaning and sterilization.

[0003] Chinese patent publication number CN109757552B discloses a plasma-activated lactic acid solution with highly efficient antibacterial properties, its preparation method, and its application. However, the plasma jet generator in this method is still an experimental unit device with a very small processing capacity, and it cannot meet the needs of large-scale production cleaning and disinfection.

[0004] To meet the needs of cleaning and disinfection in large-scale production of fresh agricultural products, it is imperative to develop a high-flux low-temperature plasma jet generator and provide basic components for a high-flux low-temperature plasma activated water generator. Utility Model Content

[0005] In view of the above-mentioned problems in the prior art, the purpose of this utility model is to provide a high-throughput low-temperature plasma jet combined generator.

[0006] This utility model provides the following technical solution:

[0007] A high-flux cryogenic plasma jet combined generator includes cryogenic plasma jet unit generators. Each unit generator has an internal conical high-voltage electrode and a stepped conical outer shell ground electrode, which are connected by an insulating material. The outer shell ground electrode is connected as a whole by a metal support plate of the combined generator and is connected to the ground electrode of a frequency-tunable high-voltage power supply. The internal high-voltage electrode is connected to the high-voltage output terminal of the frequency-tunable high-voltage power supply through a special connector.

[0008] Specifically, the internal metal material of the special connector has no sharp corners, and the external material is made of high insulation material that can withstand 25kV voltage.

[0009] Specifically, the shell ground electrode is evenly distributed on the combined generator metal support plate, both of which are made of the same metal material and are rigidly connected.

[0010] Specifically, the combined generator is provided with a compressed air linking device, and a compressed air inlet is arranged in the middle of the upper end face, and a gas outlet at the lower part is connected with a plurality of unit generator gas inlets.

[0011] Specifically, the conical high-voltage electrode in each unit generator is connected with the high-voltage output end of the adjustable frequency high-voltage power supply through a special linking piece.

[0012] The beneficial effects of the utility model are:

[0013] The device can ensure that the multiple unit generators work simultaneously, thereby greatly improving the production efficiency of the low-temperature plasma airflow compared with the current low-temperature plasma jet unit generator, and providing a basic component for special technical equipment such as a large-flux low-temperature plasma active water generator. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0015] Fig. 1 is the three-dimensional view of the utility model;

[0016] Fig. 2 is the sectional view of the utility model;

[0017] In the drawings, marks are: 1, unit generator high-voltage electrode special linking piece; 2, high-voltage electrode; 3, shell ground electrode; 4, compressed air linking device; 5, compressed air inlet; 6, metal support plate; 7, high-voltage cable special linking piece; 8, high-voltage cable interface. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the application. In addition, in the description of the application, the term "comprising" means "including but not limited to".

[0019] As Figs. 1-2As shown in the figure, the utility model provides a kind of large flux low temperature plasma jet combination generator, it is placed in water tank, water tank is equipped with guide water tank, guide water tank is used to guide the direction of water flow, simultaneously for guaranteeing that water in water tank can be treated as plasma activated water to maximum degree, guide water tank is evenly divided into several regions, and each region is placed with large flux plasma jet combination generator.

[0020] A kind of large flux low temperature plasma jet combination generator includes multiple low temperature plasma jet unit generators, each unit generator has internal conical high-voltage electrode 2 and stepped conical shell ground electrode 3, which are connected by an insulating material between them;At the same time, the shell ground electrode 3 is integrated by the combination generator metal support plate 6, and is connected to the ground of the adjustable frequency high-voltage power supply;The internal high-voltage electrode 2 is connected to the high-voltage output end of the adjustable frequency high-voltage power supply through a special link.

[0021] Specifically, the internal metal material of the special link has no sharp corner, and the external high-insulation material can withstand 25kV voltage.

[0022] Specifically, the shell ground electrode 3 is evenly distributed on the combination generator metal support plate 6, both of which are made of the same metal material and are rigidly connected.

[0023] The combination generator is provided with a compressed air linking device 4 at the top, and a compressed air inlet 5 is arranged in the middle of the upper end face, and the lower gas outlet is connected to the gas inlet of the plurality of unit generators, so as to provide the necessary gas.

[0024] Specifically, the internal conical high-voltage electrode 2 of each unit generator is connected to the high-voltage output end of the adjustable frequency high-voltage power supply through the high-voltage cable special link 7 and the unit generator high-voltage electrode special link 1 through the high-voltage cable interface 8.

[0025] Further, the discharge area of the high-voltage electrode 2 is designed as a ring cone surface, which optimizes the contact area between the plasma and the water and improves the activation efficiency.

[0026] The working principle of the utility model is as follows:

[0027] Firstly, water enters the device through the water inlet pipe and the water inlet valve, and the liquid level meter monitors the water level in real time to ensure that it is within the appropriate range. Subsequently, the compressed air linking device provides the necessary gas, which acts together with the unit generator to generate low-temperature plasma on the water surface or in the water. The active oxygen species in the plasma interact with water molecules to activate the water and enhance its oxidation capacity. In this process, the metal support plate 6 fixes the unit generator to ensure the stable generation of plasma. The activated water flows in the water tank and is discharged through the guide water tank and the water outlet valve, completing the entire activation process.

[0028] The utility model discloses a large flux low temperature plasma jet combination generator compares current low temperature plasma jet unit generator, has improved the production efficiency of low temperature plasma airflow greatly, and has provided basic components for large flux low temperature plasma active water generator and other special technical equipment.

[0029] The above only is the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model has been described in detail with reference to foregoing embodiment, for the person skilled in the art, it still can modify the technical scheme recorded in foregoing each embodiment, or equivalent replacement to part technical feature. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A large flux low temperature plasma jet combination generator, comprising low temperature plasma jet unit generators, each unit generator having an internal conical high voltage electrode and a stepped conical outer shell ground electrode connected by an insulating material connection, characterized in that The outer shell ground electrode is integrated by a combination generator metal support plate and is connected to the ground electrode of an adjustable frequency high voltage power supply; the internal high voltage electrode is connected to the high voltage output end of the adjustable frequency high voltage power supply through a special link.

2. A large flux low temperature plasma jet combined generator according to claim 1, characterized in that, The internal metal material of the special link has no sharp corners, and the external high insulation material can withstand a voltage of 25kV.

3. A large flux low temperature plasma jet combined generator according to claim 1, characterized in that, The outer shell ground electrode is evenly distributed on the combination generator metal support plate, both of which are made of the same metal material and are rigidly connected.

4. A large flux low temperature plasma jet combination generator according to claim 1, characterized in that, The combination generator is provided with a compressed air linking device, an air inlet is arranged in the middle of the upper end face, and a gas outlet at the lower part is connected to a plurality of unit generator air inlets.

5. A large flux low temperature plasma jet combination generator according to any of claims 1-4, characterized in that, The internal conical high voltage electrode of each unit generator is individually connected to the high voltage output end of the adjustable frequency high voltage power supply through a special link.

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