A backpack type plasma-activated water generating device

Abstract

The application relates to the field of agricultural product preservation technology, in particular to a backpack type plasma activated water generating device, which comprises a box body, a display module installed on the box body, a large water tank, a small water tank, a plasma activated water generator assembly and a fixing frame installed in the box body, a second ultrasonic wave radar liquid level meter is fixedly arranged at the top of the large water tank, and a second ion concentration detection sensor is fixedly arranged at the bottom of the large water tank; a first ultrasonic wave radar liquid level meter is fixedly arranged at the top of the small water tank, and a first ion concentration detection sensor is arranged at the bottom of the small water tank; a controller is arranged above the small water tank, and the controller comprises a high-voltage power supply and a battery. The device is light and convenient to carry, the flexibility of use is greatly improved, the surface of fruits and vegetables can be rapidly and effectively disinfected and killed, the preservation period of the fruits and vegetables is significantly prolonged, the rotting and loss rate of the fruits and vegetables is reduced, and the economic benefits are improved.

Description

Technical Field

[0001] This invention relates to the field of agricultural product preservation technology, and in particular to a backpack-type plasma-activated water generator. Background Technology

[0002] Extending the shelf life of fruits and vegetables is a crucial task during storage and transportation. This is not only related to maintaining their freshness and nutritional quality, but also essential for reducing losses, lowering costs, and improving economic efficiency. Among these measures, sterilization and disinfection are particularly important. However, traditional liquid disinfectants are prone to solidification and residue, potentially damaging the organic molecular structure of food. Therefore, how to more effectively sterilize and disinfect fruits and vegetables without damaging their components is a pressing issue that needs to be addressed during storage and transportation.

[0003] Recent studies have found that plasma-activated water has a highly efficient sterilization and disinfection effect; plasma-activated water can directly act on bacteria and viruses, achieving a sterilization and disinfection effect similar to that of disinfectants. However, currently available plasma-activated water equipment lacks flexibility and portability, and cannot adapt to complex transportation and storage environments. To address this, this invention proposes a backpack-type plasma-activated water generator. Summary of the Invention

[0004] The main objective of this invention is to overcome the shortcomings of existing technologies and provide a backpack plasma-activated water generator. This device is highly portable and flexible, and can provide activated water for extended periods, thus solving the problem of disinfection of harvested fruits and vegetables.

[0005] The technical solution adopted by the present invention to achieve its technical objective is: a backpack plasma activated water generator, including a housing and a large water tank, a small water tank, a plasma activated water generator assembly and a fixing frame installed inside the housing, and also including a display module, a water inlet cover and a charging interface installed on the housing;

[0006] The top of the large water tank is fixedly equipped with a second ultrasonic radar level gauge, and the bottom is fixedly equipped with a second ion concentration detection sensor; the interior of the large water tank is equipped with a large water tank outlet, a large water tank first inlet, a tenth solenoid valve, and a large water tank second inlet.

[0007] The top of the small water tank is fixedly equipped with a first ultrasonic radar level gauge, and the bottom of the small water tank is equipped with a first ion concentration detection sensor; the exterior of the small water tank is equipped with a first water outlet, a water inlet, a seventh solenoid valve, and a second water outlet.

[0008] A controller is located above the small water tank. The controller contains a high-voltage power supply and a battery. The high-voltage power supply is electrically connected to the plasma activated water generator assembly, and the battery powers the entire device.

[0009] The large water tank, small water tank, and plasma activated water generator assembly are interconnected via water pipes. Each water pipe is equipped with a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, a fifth solenoid valve, a sixth solenoid valve, an eighth solenoid valve, a ninth solenoid valve, a first water pump, a second water pump, a first three-way connector, a second three-way connector, a third three-way connector, and a fourth three-way connector. The first three-way connector has a spray head in the direction of connection to the plasma activated water generator assembly. One end of the water pipe is connected to the outside of the tank and to a spray gun.

[0010] Preferably, the plasma activated water generator assembly includes two blocking media, an anode plate and a cathode plate are installed on the outside of the blocking media, the anode plate and the cathode plate are wrapped by carbon fiber and glass tube, and insulating sealing rings are installed on the upper and lower sides.

[0011] No secondary pollutants such as ozone are generated during the plasma-activated water preparation process using the anode and cathode plates.

[0012] Preferably, the water in the large water tank flows through a water pipe successively through the water tank outlet, a first solenoid valve, a second three-way connector, a first water pump, the first three-way connector, and a third solenoid valve to the spray head. After passing through the spray head, the water becomes water mist and reaches the plasma activated water generator assembly. The plasma activated water generator assembly generates plasma activated water through the high voltage provided by the high-voltage power supply. The water becomes water mist after passing through the spray head, which is more conducive to contact with the plasma activated water generator assembly, so as to generate plasma activated water more effectively.

[0013] Preferably, the plasma-activated water generated in the plasma-activated water generator assembly flows back to the large water tank through a water pipe, passing successively through a third three-way connector, a fifth solenoid valve, and a second inlet.

[0014] Meanwhile, the plasma-activated water generated in the plasma-activated water generator assembly flows through the water pipe successively through the third three-way connector, the sixth solenoid valve and the inlet of the small water tank to the small water tank.

[0015] This design allows for the continuous increase of the concentration of plasma-activated water in the large tank until a set value is reached, or it allows for the preparation of a portion of low-concentration plasma-activated water for storage in the small tank.

[0016] Preferably, the low-concentration plasma-activated water in the small water tank flows through a water pipe successively through a first water outlet, a second solenoid valve, a second three-way connector, a first water pump, a first three-way connector, a spray head, and a third solenoid valve to the plasma-activated water generator assembly.

[0017] The low-concentration plasma-activated water in the water pipe flows through the plasma-activated water generator component to increase its concentration, and then flows through the third three-way connector, the sixth solenoid valve and the inlet of the small water tank set on the water pipe before flowing back to the small water tank.

[0018] This design allows for the continuous increase of the concentration of plasma-activated water in the small tank until the set value is reached.

[0019] Preferably, after the concentration of the plasma-activated water in the large water tank reaches the set value as detected by the second ion concentration detection sensor, it flows through the water pipe successively through the outlet of the large water tank, the first solenoid valve, the second three-way connector, the first water pump, the first three-way connector, the fourth solenoid valve, the eighth solenoid valve and the fourth three-way connector to the spray gun, and then the plasma-activated water is sprayed out through the spray gun.

[0020] Preferably, after the concentration of the plasma-activated water in the small water tank reaches the set value as detected by the first ion concentration detection sensor, it flows through the water pipe successively through the second water outlet of the small water tank, the second water pump, the ninth solenoid valve and the fourth three-way connector set on the water pipe to the spray gun, and then the plasma-activated water is sprayed out through the spray gun.

[0021] Preferably, the controller is electrically connected to and controls the switching of the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the sixth solenoid valve, the seventh solenoid valve, the eighth solenoid valve, the ninth solenoid valve, the tenth solenoid valve, the first water pump, the second water pump, and the plasma activated water generator assembly.

[0022] Preferably, the controller is electrically connected to and communicates with the first ion concentration detection sensor, the second ion concentration detection sensor, the first ultrasonic radar level gauge, the second ultrasonic radar level gauge, and the display module.

[0023] Preferably, the first ion concentration detection sensor and the second ion concentration detection sensor collect the concentration data of plasma-activated water in the small water tank and the large water tank in real time and send it to the controller; the first ultrasonic radar level gauge and the second ultrasonic radar level gauge collect the water level data of the small water tank and the large water tank in real time and send it to the controller; the controller can control the display module to display the concentration data and water level data of plasma-activated water in the large water tank and the small water tank in real time.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] This backpack-type plasma activated water generator integrates the entire device into a backpack-style box structure. The device is lightweight and easy to carry, greatly enhancing its flexibility of use. It can quickly and effectively disinfect the surface of fruits and vegetables, thereby significantly extending their shelf life, reducing spoilage rates, and improving economic benefits.

[0026] Furthermore, by combining the design of the large and small water tanks in this device with the aforementioned control method, the liquid in the small water tank can be pre-treated before the liquid in the large water tank is treated. This can greatly shorten the activation time, allowing users to use the plasma-activated water produced by this equipment as quickly as possible when plasma-activated water is needed. Moreover, in the event of a water shortage, the plasma-activated water in the small water tank can still be used, ensuring the longest possible application time for the plasma-activated water. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the front cross-sectional structure of a backpack plasma-activated water generator.

[0028] Figure 2 This is a schematic diagram of the front cross-sectional structure of the plasma-activated water generator assembly.

[0029] in:

[0030] 1-Large water tank; 2-Small water tank; 301-First solenoid valve; 302-Second solenoid valve; 303-Third solenoid valve; 304-Fourth solenoid valve; 305-Fifth solenoid valve; 306-Sixth solenoid valve; 307-Seventh solenoid valve; 308-Eighth solenoid valve; 309-Ninth solenoid valve; 310-Tenth solenoid valve; 4-Display module; 5-Controller; 501-High voltage power supply; 502-Battery; 601-First water pump; 602-Second water pump; 701-First tee connector; 702-Second tee connector; 703-Third tee connector; 704-Fourth tee connector; 8-Spray head; 9-Plasma activated water generator assembly; 901-Insulating sealing ring; 902-Anode plate; 903-Carbon fiber; 904-Blocking medium; 905-Glass tube; 906-Cathode plate; 10-Spray gun; 11-Charging interface; 1201-First ion concentration detection sensor; 1202-Second ion concentration detection sensor; 13-Box body; 14-Inlet cover; 15-Fixing bracket; 16-Water pipe; 17-Large water tank outlet; 18-Large water tank second inlet; 19-Small water tank first outlet; 20-Small water tank inlet; 21-Small water tank second outlet; 22-Large water tank first inlet; 23-First ultrasonic radar level gauge; 24-Second ultrasonic radar level gauge. Detailed Implementation

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention. Example 1

[0034] Please see Figure 1 A backpack plasma-activated water generator includes a housing 13 and a large water tank 1, a small water tank 2 and a fixing frame 15 installed inside the housing 13. It also includes a display module 4, a water inlet cover 14 and a charging interface 11 installed on the housing 13.

[0035] The top of the large water tank 1 is fixedly equipped with a second ultrasonic radar level gauge 24, and the bottom is fixedly equipped with a second ion concentration detection sensor 1202; the interior of the large water tank 13 is equipped with a large water tank outlet 17, a large water tank first inlet 22, a tenth solenoid valve 310, and a large water tank second inlet 18.

[0036] The top of the small water tank 2 is fixedly equipped with a first ultrasonic radar level gauge 23, and the bottom of the small water tank is equipped with a first ion concentration detection sensor 1201; the exterior of the small water tank 2 is equipped with a first water outlet 19, a water inlet 20, a seventh solenoid valve 307, and a second water outlet 21.

[0037] Above the small water tank 2 is a controller 5. The controller 5 contains a high-voltage power supply 501 and a battery. The high-voltage power supply 501 is electrically connected to the plasma activated water generator assembly 9. The battery powers the entire device.

[0038] The controller 5 is electrically connected to the first ion concentration detection sensor 1201, the second ion concentration detection sensor 1202, the first ultrasonic radar level gauge 23, the second ultrasonic radar level gauge 24, and the display module 4, and communicates with the devices.

[0039] The first ion concentration detection sensor 1201 and the second ion concentration detection sensor 1202 collect the concentration data of plasma-activated water in the small water tank 2 and the large water tank 1 in real time and send it to the controller 5; the first ultrasonic radar level gauge 23 and the second ultrasonic radar level gauge 24 collect the water level data of the small water tank 2 and the large water tank 1 in real time and send it to the controller 5; the controller 5 can control the display module 4 to display the concentration data and water level data of plasma-activated water in the large water tank 1 and the small water tank 2 in real time.

[0040] Large water tank 1, small water tank 2, and plasma activated water generator assembly 9 are interconnected via water pipe 16. Water pipe 16 is equipped with a first solenoid valve 301, a second solenoid valve 302, a third solenoid valve 303, a fourth solenoid valve 304, a fifth solenoid valve 305, a sixth solenoid valve 306, an eighth solenoid valve 308, a ninth solenoid valve 309, a first water pump 601, a second water pump 602, a first three-way connector 701, a second three-way connector 702, a third three-way connector 703, and a fourth three-way connector 704. The first three-way connector 701 has a spray head 8 in the direction of connection to the plasma activated water generator assembly 9. One end of water pipe 16 is connected to the outside of the tank 13 and to the spray gun 10.

[0041] The controller 5 is electrically connected to and controls the switching of the first solenoid valve 301, the second solenoid valve 302, the third solenoid valve 303, the fourth solenoid valve 304, the fifth solenoid valve 305, the sixth solenoid valve 306, the seventh solenoid valve 307, the eighth solenoid valve 308, the ninth solenoid valve 309, the tenth solenoid valve 310, the first water pump 601, the second water pump 602, and the plasma activated water generator assembly 9. Example 2

[0042] Please see Figure 1Based on the above embodiments, in this backpack-type plasma activated water generator, water in the large water tank 1 flows through the water pipe 16 successively through the large water tank outlet 17, the first solenoid valve 301, the second three-way connector 702, the first water pump 601, the first three-way connector 701, and the third solenoid valve 303 to the spray head 8. After passing through the spray head 8, the water becomes water mist and reaches the plasma activated water generator assembly 9. The plasma activated water generator assembly 9 generates plasma activated water through the high voltage provided by the high voltage power supply 501. The water becomes water mist after passing through the spray head, which is more conducive to contact with the plasma activated water generator assembly, so as to generate plasma activated water more effectively.

[0043] Furthermore, in this embodiment, the plasma-activated water generated in the plasma-activated water generator assembly 9 flows through the water pipe 16 and successively through the third tee connector 703, the fifth solenoid valve 305 and the second inlet 18 on the water pipe 16 before flowing back to the large water tank 1.

[0044] Meanwhile, the plasma activated water generated in the plasma activated water generator assembly 9 flows through the water pipe 16, passing through the third three-way connector 703, the sixth solenoid valve 306 and the small water tank inlet 20 on the water pipe 16, and then flows to the small water tank 2.

[0045] This design allows for the continuous increase of the concentration of plasma-activated water in the large water tank 1 until a set value is reached, or it allows for the preparation of a portion of low-concentration plasma-activated water for storage in the small water tank.

[0046] Furthermore, in this embodiment, the low-concentration plasma-activated water in the small water tank 2 flows through the water pipe 16 successively through the first water outlet 19, the second solenoid valve 302, the second three-way connector 702, the first water pump 601, the first three-way connector 701, the third solenoid valve 303 and the spray head 8 to reach the plasma-activated water generator assembly 9.

[0047] The low-concentration plasma-activated water in the water pipe 16 flows through the plasma-activated water generator component 9 to increase its concentration, and then flows through the third three-way connector 703, the sixth solenoid valve 306 and the small water tank inlet 20 set on the water pipe 16 to return to the small water tank 2.

[0048] This design allows for the continuous increase of the concentration of plasma-activated water in the small water tank 2 until the set value is reached.

[0049] Furthermore, in this embodiment, after the concentration of the plasma-activated water in the large water tank 1 reaches the set value by the second ion concentration detection sensor 1202, it flows through the water pipe 16 successively through the large water tank outlet 17, the first solenoid valve 301, the second three-way connector 702, the first water pump 601, the first three-way connector 701, the fourth solenoid valve 304, the eighth solenoid valve 308 and the fourth three-way connector 704 to the spray gun 10, and then the plasma-activated water is sprayed out through the spray gun 10.

[0050] After the concentration of plasma-activated water in the small water tank 2 reaches the set value by the first ion concentration detection sensor 1201, it flows through the water pipe 16 and successively through the second water outlet 21 of the small water tank 602, the ninth solenoid valve 309 and the fourth three-way connector 704 set on the water pipe 16 to the spray gun 10, and then the plasma-activated water is sprayed out through the spray gun 10.

[0051] Specifically, in use, when the user needs plasma-activated water, the inlet cover 14 needs to be opened to inject water into the large water tank 1 through the first inlet 22. The second ultrasonic radar level gauge 24 sends the water level information of the large water tank 1 to the controller 5. After the controller 5 detects the change in the water level of the large water tank 1, it opens the first solenoid valve 301, the third solenoid valve 303, the sixth solenoid valve 306, the seventh solenoid valve 307, the tenth solenoid valve 310 and the first water pump 601. The first water pump 601 pressurizes the water in the large water tank 1 and transports it to the spray head 8 through the water pipe 16. After passing through the spray head 8, it becomes water mist and reaches the plasma-activated water generator assembly 9. It reacts with the plasma generated by the plasma-activated water generator assembly 9 to become low-concentration plasma-activated water. After the low-concentration plasma-activated water is generated, it continues to be transported to the small water tank 2 through the water pipe 16. This operation continues and the water level of the small water tank 2 is continuously detected by the first ultrasonic radar level gauge 23.

[0052] When the water level in the small water tank 2 reaches the threshold, the controller 5 closes the first solenoid valve 301 and opens the second solenoid valve 302. The status of the other solenoid valves and the water pump remains unchanged. The first water pump 601 pressurizes and draws low-concentration plasma-activated water from the small water tank 2. After the low-concentration plasma-activated water is atomized by the spray head 8, it enters the plasma-activated water generator assembly 9 and reacts with plasma again to increase the concentration of plasma-activated water. Then it returns to the small water tank 2. This operation is repeated, and the concentration of plasma-activated water in the small water tank 2 is continuously detected by the first ion concentration detection sensor 1201.

[0053] When the concentration of plasma-activated water in the small water tank 2 reaches the threshold, the controller 5 prompts the user through the display module 4 that the plasma-activated water preparation in the small water tank 2 is complete and opens the ninth solenoid valve 309 and the second water pump 602. The second water pump 602 pressurizes the activated water in the small water tank 2 so that it can be delivered to the atomizing gun 10 through the water pipe 16, so that the user can use the atomizing gun 10 to spray the activated water from the small water tank 2.

[0054] While controller 5 opens the ninth solenoid valve 309 and the second water pump 602, it simultaneously opens the first solenoid valve 301 and the fifth solenoid valve 305, and closes the second solenoid valve 302 and the sixth solenoid valve 306. The remaining solenoid valves and water pumps remain unchanged. The first water pump 601 pressurizes the water in the large water tank 1 and transports it to the spray head 8 through the water pipe 16. After passing through the spray head 8, the water becomes a mist and reaches the plasma activated water generator assembly 9, where it reacts with the plasma generated by the assembly to become low-concentration plasma activated water. After generating low-concentration plasma activated water, it continues to be transported to the large water tank 1 through the water pipe 16. This operation is repeated and continuously detected by the second ion concentration detection sensor 1202. The concentration of plasma-activated water in large water tank 1; when the concentration of plasma-activated water in large water tank 1 reaches the threshold, the controller 5 prompts the user through the display module 4 that the preparation of plasma-activated water in large water tank 1 is complete and opens the fourth solenoid valve 304 and the eighth solenoid valve 308 while closing the third solenoid valve 303, the fifth solenoid valve 305, the ninth solenoid valve 309, the second water pump 602 and the plasma-activated water generator assembly 9. The states of the remaining solenoid valves and water pumps remain unchanged, so that the device no longer generates plasma. The plasma-activated water in large water tank 1 is pressurized by the first water pump 601 and transported preferentially through the water pipe 16 to the atomizing gun 10, so that the user can use the atomizing gun 10 to spray the activated water from large water tank 1.

[0055] While the user is using the activated water in the large water tank 1, the controller 5 continuously monitors the water level in the large water tank 1 through the second ultrasonic radar level gauge 24. When the water level in the large water tank 1 falls below a certain water shortage threshold, the controller 5 alerts the user to the water shortage situation through the control display module 4. At the same time, the controller 5 opens the third solenoid valve 303 and the sixth solenoid valve 306 to replenish the plasma activated water in the small water tank 2 while ensuring that the atomizing gun 10 supplies plasma activated water. When the water level in the small water tank 2 reaches the threshold, the third solenoid valve 303 and the sixth solenoid valve 306 are closed. When the water level in the large water tank 1 falls below the minimum water level threshold, the controller 5 alerts the user to the water shortage situation through the control display module 4. At the same time, the ninth solenoid valve 309 and the second water pump 602 are opened, the seventh solenoid valve 307 is kept open, and the remaining solenoid valves and water pumps are closed so that the user can use the atomizing gun 10 to spray activated water from the small water tank 2 until the activated water in the small water tank 2 falls below the minimum water level threshold.

[0056] By combining the design of the large and small water tanks with the control method described above, the liquid in the small water tank 2 can be pre-treated before the liquid in the large water tank 1 is treated. This can greatly shorten the activation time, allowing users to use the plasma activated water produced by this equipment as quickly as possible when they need plasma activated water. Furthermore, in the event of a water shortage, the plasma activated water in the small water tank 2 can still be used, ensuring the longest possible application time for the plasma activated water.

[0057] The solution in this embodiment can be selectively combined with solutions in other embodiments. Example 3

[0058] Please see Figure 1-2 Based on the above embodiments, the negative plasma activated water generator device includes two blocking media 904. An anode plate 902 and a cathode plate 906 are installed on the outside of the blocking media 904. The anode plate 902 and the cathode plate 906 are wrapped by carbon fiber 903 and glass tube 905, and insulating sealing rings 901 are installed on the upper and lower sides.

[0059] No secondary pollutants such as ozone are generated during the plasma-activated water preparation process using the anode plate 902 and cathode plate 906.

[0060] The solution in this embodiment can be selectively combined with solutions in other embodiments.

[0061] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of this invention. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this invention, or equivalent structural, procedural, or functional transformations made using the description and drawings of this invention, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this invention.

Claims

1. A backpack-type plasma-activated water generator, characterized in that: It includes a housing (13) and a large water tank (1), a small water tank (2), a plasma activated water generator assembly (9) and a fixing frame (15) installed inside the housing (13), and also includes a display module (4) installed on the housing (13); The large water tank (1), the small water tank (2), and the plasma activated water generator assembly (9) are interconnected by a water pipe (16). The water pipe (16) is equipped with a first solenoid valve (301), a second solenoid valve (302), a third solenoid valve (303), a fourth solenoid valve (304), a fifth solenoid valve (305), a sixth solenoid valve (306), an eighth solenoid valve (308), a ninth solenoid valve (309), a first water pump (601), a second water pump (602), a first three-way connector (701), a second three-way connector (702), a third three-way connector (703), and a fourth three-way connector (704). The first three-way connector (701) is provided with a spray head (8) in the direction of connection to the plasma activated water generator assembly (9). One end of the water pipe (16) is connected to the outside of the tank (13) and connected to the spray gun (10). The large water tank (1) is fixedly equipped with a second ultrasonic radar level gauge (24) at the top and a second ion concentration detection sensor (1202) at the bottom; the large water tank (1) is equipped with a large water tank outlet (17), a large water tank first inlet (22), a tenth solenoid valve (310) and a large water tank second inlet (18). The top of the small water tank (2) is fixedly equipped with a first ultrasonic radar level gauge (23), and the bottom of the small water tank is equipped with a first ion concentration detection sensor (1201); the outside of the small water tank (2) is equipped with a first water outlet (19), a water inlet (20), a seventh solenoid valve (307) and a second water outlet (21). The small water tank (2) is equipped with a controller (5) on top. The controller (5) contains a high-voltage power supply (501) and a battery. The high-voltage power supply (501) is electrically connected to the plasma activated water generator assembly (9). The battery supplies power to the entire device. The water in the large water tank (1) flows through the water pipe (16) and passes through the water outlet (17) of the large water tank (17), the first solenoid valve (301), the second three-way connector (702), the first water pump (601), the first three-way connector (701) and the third solenoid valve (303) on the water pipe (16) before flowing to the spray head (8). After passing through the spray head (8), the water is processed into water mist and reaches the plasma activated water generator assembly (9). The plasma activated water generator assembly (9) generates plasma activated water by the high voltage provided by the high voltage power supply (501). The plasma activated water generated in the plasma activated water generator assembly (9) flows through the water pipe (16) and successively through the third three-way connector (703), the fifth solenoid valve (305) and the second water inlet (18) set on the water pipe (16) before flowing back to the large water tank (1). Meanwhile, the plasma activated water generated in the plasma activated water generator assembly (9) flows through the water pipe (16) and successively through the third three-way connector (703), the sixth solenoid valve (306) and the small water tank inlet (20) to the small water tank (2). The low-concentration plasma-activated water in the small water tank (2) flows through the water pipe (16) and passes through the first outlet (19), second solenoid valve (302), second three-way connector (702), first water pump (601), first three-way connector (701), third solenoid valve (303) and spray head (8) of the small water tank (2) to reach the plasma-activated water generator assembly (9). The low-concentration plasma-activated water in the water pipe (16) flows through the plasma-activated water generator assembly (9) to increase its concentration, and then flows through the water pipe (16) through the third three-way connector (703), the sixth solenoid valve (306) and the small water tank inlet (20) set on the water pipe (16) to flow back to the small water tank (2).

2. The backpack-type plasma activated water generator according to claim 1, characterized in that: The plasma activated water generator assembly (9) includes two blocking media (904). An anode plate (902) and a cathode plate (906) are installed on the outside of the blocking media (904). The anode plate (902) and the cathode plate (906) are wrapped by carbon fiber (903) and glass tube (905), and insulating sealing rings (901) are installed on the upper and lower sides.

3. The backpack-type plasma activated water generator according to claim 1, characterized in that: After the concentration of plasma-activated water in the large water tank (1) reaches the set value by the second ion concentration detection sensor (1202), it flows through the water pipe (16) and successively through the water outlet (17) of the large water tank (17), the first solenoid valve (301), the second three-way connector (702), the first water pump (601), the first three-way connector (701), the fourth solenoid valve (304), the eighth solenoid valve (308) and the fourth three-way connector (704) to the spray gun (10), and then the plasma-activated water is sprayed out through the spray gun (10).

4. The backpack-type plasma activated water generator according to claim 1, characterized in that: After the concentration of plasma-activated water in the small water tank (2) reaches the set value by the first ion concentration detection sensor (1201), it flows through the water pipe (16) through the second outlet (21) of the small water tank, the second water pump (602), the ninth solenoid valve (309) and the fourth three-way connector (704) set on the water pipe (16) to the spray gun (10), and then the plasma-activated water is sprayed out through the spray gun (10).

5. The backpack-type plasma activated water generator according to claim 1, characterized in that: The controller (5) is electrically connected to and controls the switching of the devices of the first solenoid valve (301), the second solenoid valve (302), the third solenoid valve (303), the fourth solenoid valve (304), the fifth solenoid valve (305), the sixth solenoid valve (306), the seventh solenoid valve (307), the eighth solenoid valve (308), the ninth solenoid valve (309), the tenth solenoid valve (310), the first water pump (601), the second water pump (602), and the plasma activated water generator assembly (9).

6. The backpack-type plasma activated water generator according to claim 5, characterized in that: The controller (5) is electrically connected to and communicates with the first ion concentration detection sensor (1201), the second ion concentration detection sensor (1202), the first ultrasonic radar level gauge (23), the second ultrasonic radar level gauge (24), and the display module (4).

7. A backpack-type plasma-activated water generator according to claim 6, characterized in that: The first ion concentration detection sensor (1201) and the second ion concentration detection sensor (1202) collect the concentration data of plasma-activated water in the small water tank (2) and the large water tank (1) in real time and send it to the controller (5); the first ultrasonic radar level gauge (23) and the second ultrasonic radar level gauge (24) collect the water level data of the small water tank (2) and the large water tank (1) in real time and send it to the controller (5); the controller (5) can control the display module (4) to display the concentration data and water level data of plasma-activated water in the large water tank (1) and the small water tank (2) in real time.

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