A helical negative oxygen ion generator

Abstract

The utility model relates to a spiral negative oxygen ion generator, the existing negative oxygen ion generator is affected by the negative oxygen ion output because of the less impact times, the utility model discloses a tank body that is equipped with containing cavity and steam supply part and generating part that are arranged in the containing cavity, the generating part receives the water vapor generated from the steam supply part and forms negative oxygen ion, the generating part includes the generating channel that is coiled spirally, the outer side wall away from the spiral center in the generating channel is equipped with the friction protrusion, and the water vapor that flows outward along the spiral path in the generating channel successively impacts the friction protrusion on the way under the centrifugal action to accumulate and promote the negative oxygen ion concentration. Set up the friction protrusion on the outer wall of the generating channel spirally, and the water vapor that flows along the generating channel will impact the friction protrusion on the way many times and obtain the corresponding negative oxygen ion, effectively promote the negative oxygen ion concentration, satisfy the use demand.

Description

Technical Field

[0001] This utility model relates to the field of gas preparation, specifically to a negative oxygen ion generator. Background Technology

[0002] Negative oxygen ions are a collective term for negatively charged single gas molecules and light ion clusters. They are formed when oxygen molecules in the air combine with free electrons. Air negative oxygen ions are hailed as "vitamins of the air," capable of degrading and neutralizing harmful gases in the air. They also have effects such as regulating human physiological functions, eliminating fatigue, improving sleep, preventing respiratory diseases, improving cardiovascular and cerebrovascular diseases, and lowering blood pressure. Existing preparation devices typically use an impact method to obtain negative oxygen ions. Water vapor undergoes high-speed impact with a hard object, causing water molecules to break down and generate negative ions. These negative ions then adsorb with oxygen in the air to form additional negative oxygen ions. Current preparation devices mix water with high-pressure air and spray water vapor onto a generator. Under the influence of high-pressure air, the water impacts the generator at high speed, generating negative ions. These negative ions mix with oxygen in the air to produce additional negative oxygen ions. However, because there is only one impact between the water vapor and the generator, the number of negative oxygen ions is reduced due to the smaller number of negative ions generated per impact, resulting in a low concentration that fails to meet usage requirements and negatively impacts the user experience. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a spiral-shaped negative ion generator. Friction protrusions are provided on the outer wall of the spiral-shaped generation channel. Water vapor flowing along the generation channel will collide with the friction protrusions multiple times and obtain corresponding negative ions, effectively increasing the concentration of negative ions and meeting the usage requirements.

[0004] This invention achieves its purpose through the following method: a spiral-shaped negative ion generator includes a tank with an internal cavity, a water / gas supply section, and a generating section disposed within the cavity. The generating section receives water vapor generated by the water / gas supply section and forms negative ions. The generating section includes a spirally coiled generating channel. Friction protrusions are provided on the outer wall of the generating channel away from the spiral center. Water vapor flowing outward along the spiral path within the generating channel impacts the friction protrusions along its path under centrifugal force, thereby accumulating and increasing the concentration of negative ions. The friction protrusions on the outer wall of the spiral generating channel allow water vapor to flow outward along the spiral path within the generating channel. Under centrifugal force, the water vapor adheres to the outer wall of the generating channel and impacts the friction protrusions along its path in sequence. Each impact generates negative ions, and the concentration of negative ions is accumulated through multiple impacts. This not only meets usage requirements and improves the user experience but also utilizes a sealed generating channel to ensure that the water vapor maintains a high pressure throughout the process, thereby increasing the speed of the water vapor during impact to meet the requirements for generating negative ions.

[0005] Preferably, the inlet of the generating channel is located at the spiral center of the generating section, and the outlet of the generating channel is located at the periphery of the generating section. Water vapor flows from the inside to the outside along a spiral path within the generating channel. Water vapor enters the generating channel through the inlet, flows from the inside to the outside along the spiral path, and then exits through the outlet. The inlet and outlet are respectively located at the spiral center and spiral periphery of the generating channel, ensuring that water vapor in each section of the generating channel impacts the friction protrusions on the outer wall of the generating channel due to centrifugal force, thereby increasing the production of negative oxygen ions by increasing the impact force.

[0006] Preferably, the friction protrusions include a plurality of unit protrusions arranged sequentially along the generating channel. Each unit protrusion includes an acceleration section, an impact section, and a pressure relief section arranged sequentially. The impact section is constricted and has an impact surface. Water vapor flows sequentially along the generating channel through each unit protrusion and generates negative oxygen ions in batches after contacting each impact surface. The unit protrusions are arranged in multiple groups and continuously on the outer wall of the generating channel, including an acceleration section for increasing the water vapor flow rate, an impact section for water vapor to impact and generate negative oxygen ions, and a pressure relief section for releasing pressure and guiding the flow of the water vapor mixture. Water vapor repeatedly generates negative oxygen ions by repeatedly undergoing the processes of acceleration, impact, and pressure relief, thereby effectively increasing the concentration of negative oxygen ions in the water vapor.

[0007] Preferably, the acceleration section has a constricted structure, including an acceleration surface formed by the bulge from the outer wall of the generating channel towards the spiral center. The angle between the acceleration surface and the tangent of the corresponding section of the generating channel is A, where 10°≤A≤40°. The acceleration section increases the flow velocity of water vapor by reducing its cross-sectional area, providing a flow velocity guarantee for the subsequent generation of negative oxygen ions through impact. Parameter A is used to describe the inclination of the acceleration surface. Increasing parameter A ensures a better acceleration effect for water vapor, while limiting parameter A prolongs the acceleration time, thereby ensuring a stable and orderly increase in the flow velocity of water vapor and improving the uniformity of impact. When A < 10°, the acceleration effect of water vapor is affected by the small change in the cross-sectional area of ​​the acceleration section. When A > 40°, the flow efficiency of water vapor is affected by the excessive change in the cross-sectional area of ​​the acceleration section, causing the water vapor flow velocity to fluctuate in stages.

[0008] Preferably, the parameter A within each unit protrusion increases progressively along the direction of water vapor flow within the generating channel to gradually enhance the acceleration intensity. Different parameters A can be set for each unit protrusion arranged sequentially along the generating channel. By progressively increasing parameter A, the degree of reduction in the cross-sectional area of ​​the acceleration section within each unit protrusion is increased, thereby enhancing the acceleration effect and ensuring that water vapor maintains a high flow velocity in the later section of the generating channel. This ensures that water vapor can obtain negative oxygen ions through high-speed impact.

[0009] Preferably, the length of the acceleration section within each unit protrusion increases progressively along the direction of water vapor flow within the generating channel, thereby gradually increasing the water vapor velocity. The unit protrusions arranged sequentially along the generating channel can be configured with different acceleration section lengths. By progressively increasing the acceleration section length, the acceleration time within each unit protrusion is increased, thereby improving acceleration stability and ensuring that the water vapor has a uniform flow velocity in the latter part of the generating channel. This ensures that the water vapor can obtain negative oxygen ions through high-speed impact.

[0010] Preferably, the impact surface is formed by bulging from the outer wall of the generating channel towards the spiral center, and the angle between the impact surface and the tangent of the corresponding section of the generating channel is B, where 40° < B ≤ 85°. By setting the impact surface, the cross-sectional area of ​​the generating channel is drastically reduced, allowing water vapor to collide with the impact surface at high speed, thereby generating negative oxygen ions. The angle of 40° < B ≤ 85° not only enhances the impact effect by drastically reducing the cross-sectional area of ​​the generating channel, thus increasing the production of negative oxygen ions, but also guides the water vapor to flow backward along the generating channel by setting the inclined impact surface, facilitating the sequential collision of water vapor with the subsequent protrusions of the generating channel to generate negative oxygen ions.

[0011] Preferably, the pressure relief section has a flared structure, and the cross-sectional area of ​​the pressure relief section is larger than that of the impact section. The pressure relief section relieves the pressure of the water vapor flowing through the impact section and eliminates turbulence, so that the water vapor flows uniformly and facilitates the acceleration and impact of the subsequent unit protrusions.

[0012] Preferably, the impact surface is provided with impact protrusions, the length direction of which is perpendicular to the direction of water vapor flow. By setting the impact protrusions to block the water vapor flow, the production of negative oxygen ions is increased by enhancing the impact effect. The impact protrusions are set perpendicular to the direction of water vapor flow to enhance the impact effect.

[0013] Preferably, the inner wall of the generating channel is provided with a guide protrusion between adjacent unit protrusions to guide water vapor to flow along the impact surface. The guide protrusion is located on the inner wall of the generating channel near the spiral center, and is used to guide water vapor in the generating channel to move towards the outer wall, thereby ensuring that water vapor can flow along the acceleration surface and the impact surface, improving the acceleration effect and the impact effect.

[0014] Preferably, the generating section is a cone shape with an upward bulge in the middle, and the generating channel is spirally inclined from the inside to the outside to guide water and vapor to flow towards the outlet. Liquid water is impacted into small liquid particles in high-pressure air. When these small liquid particles merge, they form liquid water droplets that drip onto the bottom wall of the generating channel. By designing the generating section as a cone shape with an upward bulge in the middle, and by making the bottom wall of the generating channel inclined from the inside to the outside, the water accumulated on the bottom wall of the generating channel can flow along the bottom wall towards the outlet, thus facilitating water discharge and ensuring unobstructed flow within the generating channel.

[0015] Preferably, the generating channel is formed by bending a tube with a square cross-section. The square tube has a square cross-section, which makes the top and bottom surfaces of the generating part flat. This increases the cross-sectional area of ​​the generating channel without increasing the thickness of the generating part. This not only effectively limits the thickness of the generating part and facilitates disassembly and use, but also increases the water vapor flow rate by increasing the cross-sectional area, thereby increasing the production of negative oxygen ions.

[0016] Preferably, the outlet is constricted, which helps to maintain pressure on the water vapor in the generating channel. This ensures that the water vapor has a high pressure in each section of the generating channel, thereby maintaining a high flow rate to ensure effective impact force. It also increases the outward flow rate of water vapor at the outlet, thereby increasing the transport distance of negative oxygen ions and expanding the coverage area of ​​negative oxygen ions.

[0017] Preferably, the generating part is located at the top of the receiving cavity, which not only reserves space for storing water at the bottom of the receiving cavity, but also increases the continuous operating time of the negative oxygen ion generator by increasing the amount of water stored, and effectively shortens the distance between the outlet and the air outlet, thereby shortening the delivery time by shortening the exhaust path of negative oxygen ions, and thus expanding the delivery range of negative oxygen ions.

[0018] Preferably, the water vapor supply unit includes a high-pressure air pipe and a water extraction pipe. The high-pressure air pipe is connected between the water extraction pipe and the inlet. The middle section of the high-pressure air pipe forms a Venturi section by narrowing its diameter. One end of the water extraction pipe is connected to the Venturi section, and the other end extends downward to the bottom of the tank. When the external high-pressure airflow passes through the Venturi section, it draws water from the bottom of the tank through the water extraction pipe and mixes it to form water vapor that is delivered to the inlet. The high-pressure airflow is accelerated and forms a negative pressure zone when passing through the Venturi section. The negative pressure zone draws water from the bottom of the tank through the water extraction pipe and mixes the water with high-pressure air to form water vapor for impacting and generating negative oxygen ions. This continuously provides water vapor to the generator and continuously generates negative oxygen ions that are delivered outward.

[0019] Preferably, the top of the tank is provided with an outlet communicating with the containing cavity and an inlet for receiving external high-pressure airflow. The high-pressure air pipe protrudes from the end of the tank to form the inlet. The high-pressure airflow received through the inlet mixes with the water source and passes through the generating channel to form negative oxygen ions. The negative oxygen ions in the containing cavity are discharged outward with the water vapor through the outlet. The outlets are all located at the top of the tank, which not only prevents water from leaking out of the tank but also shortens the distance between the outlet and the outlet, facilitating the outward transport of negative oxygen ions. The high-pressure air pipe protruding from the end of the tank to form the inlet for receiving external high-pressure airflow ensures that the generating channel receives a continuous high-pressure air source, thereby ensuring that water vapor forms negative oxygen ions through impact within the generating channel.

[0020] Preferably, the high-pressure air pipe is equipped with a flow regulating valve and a flow meter at its front end. The flow regulating valve is used to regulate the flow rate of the high-pressure airflow through the high-pressure air pipe, and the flow meter allows the user to easily observe the flow rate and adjust it as needed.

[0021] The outstanding advantages of this invention are as follows: friction protrusions are provided on the outer wall of the spiral generating channel. Water vapor flows outward along the spiral path inside the generating channel. Under centrifugal force, the water vapor adheres to the outer wall of the generating channel and rubs and collides with the friction protrusions along the way. Negative oxygen ions are generated with each collision. The concentration of negative oxygen ions is increased by accumulating through multiple collisions. This not only meets the usage requirements and improves the user experience, but also ensures that the water vapor maintains a high air pressure throughout the process by using the sealed generating channel, thereby increasing the speed of water vapor during collisions to meet the requirements for generating negative oxygen ions. Attached Figure Description

[0022] Figure 1 This is a partial cross-sectional view of the negative oxygen ion generator described in Example 1;

[0023] Figure 2 This is a cross-sectional view of the generating section as described in Embodiment 1;

[0024] Figure 3 This is a schematic diagram of the negative oxygen ion generator described in Example 1;

[0025] Figure 4 This is a cross-sectional view of the generating section as described in Embodiment 2;

[0026] Figure 5 This is a schematic diagram of the assembly structure of the soda supply unit and the generator unit described in Embodiment 3;

[0027] In the diagram: 1. Tank body, 2. Gas supply section, 3. Generating section, 4. Friction protrusion, 5. Acceleration surface, 6. Impact surface, 7. Pressure relief section, 8. Guide protrusion, 9. Inlet, 10. Outlet, 11. High-pressure gas pipe, 12. Water pumping pipe, 13. Venturi section, 14. Gas outlet, 15. Acceleration section, 16. Impact section, 17. Impact protrusion, 18. Air inlet, 19. Flow regulating valve, 20. Flow meter. Detailed Implementation

[0028] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] Example 1:

[0030] This embodiment provides a negative oxygen ion generator.

[0031] like Figure 1 and 2The negative ion generator shown comprises a tank 1 with an internal cavity, a water / gas supply unit 2, and a generator 3 located within the cavity. The generator 3 receives water vapor generated by the water / gas supply unit 2 and forms negative ions. The generator 3 includes a spirally coiled generating channel. Friction protrusions 4 are provided on the outer wall of the generating channel away from the spiral center. Water vapor flowing outward along the spiral path within the generating channel impacts the friction protrusions 4 sequentially under centrifugal force, thereby accumulating and increasing the concentration of negative ions. The friction protrusions 4 on the outer wall of the spiral generating channel allow water vapor to flow outward along the spiral path within the generating channel. Under centrifugal force, the water vapor adheres to the outer wall of the generating channel and impacts the friction protrusions sequentially. Each impact generates negative ions, and the concentration of negative ions is accumulated through multiple impacts. This not only meets usage requirements and improves the user experience but also utilizes a sealed generating channel to ensure that the water vapor maintains a high pressure throughout the process, thereby increasing the speed of the water vapor during impact to meet the demand for negative ion generation.

[0032] In this embodiment, the inlet 9 of the generating channel is located at the spiral center of the generating part 3, and the outlet 10 of the generating channel is located at the periphery of the generating part 3. Water vapor flows from the inside to the outside along the spiral path within the generating channel. In use, the steam supply part 2 generates water vapor, which is input into the generating channel through the inlet 9 at a relatively high pressure and flow rate. The water vapor flows along the spiral path within the generating channel and is thrown towards the outer wall of the generating channel by the centrifugal force generated by the high-speed spiral motion. The water vapor flows along the outer wall of the generating channel and collides with the friction protrusions 4, generating negative oxygen ions. The water vapor collides with each friction protrusion 4 along the way in sequence, generating corresponding batches of negative oxygen ions, so that the concentration of negative oxygen ions in the water vapor gradually accumulates and increases. The water vapor carrying negative oxygen ions is discharged through the outlet 10.

[0033] In this embodiment, the friction protrusions 4 are disposed on the outer wall of the inner cavity of the generating channel away from the spiral center, thus forming an uneven surface on the outer wall of the generating channel. When water vapor flows along the spiral path within the generating channel, it is propelled towards the outer wall of the generating channel due to centrifugal force, and then generates negative oxygen ions by colliding with the friction protrusions 4. Specifically, the water vapor flows along the spiral path under the guidance of the generating channel, utilizing the centrifugal force generated by the spiral path to increase the impact force between the water vapor and the friction protrusions 4. Furthermore, the arrangement of friction protrusions 4 along the spiral path within the generating channel increases the number of water vapor collisions, thereby forming multiple batches of negative oxygen ions through repeated collisions. The concentration of negative oxygen ions within the water vapor is increased by accumulating these batches to meet usage requirements.

[0034] In this embodiment, the generating channel is formed by bending a square-section tube. The tube is bent and coiled to form a spiral generating channel, making the top and bottom walls of the generating channel flat. This effectively reduces the volume of the generating part 3, making it easy to disassemble and use, and also ensures that the generating channel has a large cross-sectional area. This increases the amount of negative oxygen ions generated in a single impact by increasing the water vapor flow rate, thereby increasing the cumulative amount of negative oxygen ions.

[0035] In this embodiment, the outlet 10 is constricted, which not only helps to increase the speed of water vapor discharge and thus increase the area covered by negative oxygen ions, but also effectively maintains the air pressure in the generating channel, thereby ensuring that water vapor has a constant pressure and a large flow rate in each section of the generating channel, and ensuring the production of negative oxygen ions by maintaining the impact force.

[0036] In this embodiment, the water vapor supply unit includes a high-pressure gas pipe 11 and a water extraction pipe 12. The high-pressure gas pipe 11 spans between the water extraction pipe 12 and the inlet 9. The middle section of the high-pressure gas pipe 11 forms a Venturi section 13 by narrowing its diameter. One end of the water extraction pipe 12 is connected to the Venturi section 13, and the other end extends downward to the bottom of the tank 1. When the external high-pressure gas flows through the Venturi section 13, it draws water from the bottom of the tank 1 through the water extraction pipe 12 and mixes to form water vapor that is delivered to the inlet 9. The generating unit 3 is located at the top of the receiving cavity. The top end of the water extraction pipe 12 is connected to the Venturi section 13, and the bottom end extends downward to the bottom of the receiving cavity for drawing water from the tank 1. One end of the high-pressure gas pipe 11 is connected to an external high-pressure gas source, and the other end is inserted into the tank 1 and connected to the generating channel inlet 9. The Venturi section 13 increases the airflow velocity by narrowing its diameter, thereby forming a negative pressure zone through which water can be drawn from the water source via the pumping pipe 12. The water source enters the high-pressure air pipe 11 and forms liquid particles under the impact of high-pressure air. The small liquid particles flow with the high-pressure air and form water vapor transported to the generating channel. The smaller liquid particles can increase the production of negative ions, thereby increasing the production of negative oxygen ions.

[0037] In this embodiment, the top of the tank 1 is provided with an outlet 14 communicating with the receiving cavity and an inlet 18 for receiving external high-pressure airflow. The high-pressure air pipe 11 is exposed at the end of the tank 1 to form the inlet 18. The high-pressure airflow received through the inlet 18 mixes with the water source and passes through the generating channel to form negative oxygen ions. The negative oxygen ions in the receiving cavity are discharged with the water vapor through the outlet 14. The tank 1 is connected to the outside air pipe through the inlet 18 to receive external high-pressure airflow. The outlet 14 is connected to the receiving cavity and, after forming negative oxygen ions through the generating channel, is discharged with the high-pressure airflow through the outlet 14.

[0038] In this embodiment, the high-pressure gas pipe 11 is equipped with a flow regulating valve 19 and a flow meter 20 (e.g., Figure 3As shown in the figure, this allows users to observe and control the flow rate of the high-pressure airflow in the high-pressure air pipe 11, ensuring that the flow rate of the high-pressure airflow meets the requirements for producing negative oxygen ions.

[0039] Understandably, for ease of processing, the generating section 3 can form a spiral groove by chiseling downwards on the top surface of the block raw material, and then cover the groove with a cover plate to form the generating channel. This effectively simplifies the structure and facilitates processing, and should also be considered a specific implementation of this embodiment. The bottom wall of the groove can be inclined or flat, and should also be considered a specific implementation of this embodiment.

[0040] Example 2:

[0041] Compared to Example 1, this example provides another negative oxygen ion generator.

[0042] like Figure 4 The negative ion generator shown includes friction protrusions 4 comprising several unit protrusions arranged sequentially along the generation channel. Water vapor flows sequentially through each unit protrusion along the generation channel and generates negative ions in batches upon contact with each impact surface 6. The generation channel is divided into multiple sections along its direction, each section containing unit protrusions. These regularly arranged unit protrusions subject the flowing water vapor to multiple consecutive impacts, ensuring a good negative ion yield in each impact and thus increasing the concentration of negative ions.

[0043] In this embodiment, the unit protrusion includes an acceleration section 15, an impact section 16, and a pressure relief section 7 arranged sequentially. The acceleration section 15 is used to increase the water vapor flow rate, the impact section 16 allows water vapor to impact and generate negative oxygen ions, and the pressure relief section 7 is used to release pressure and eliminate turbulence. The water vapor flowing along the generating channel will circulate through the acceleration section 15, the impact section 16, and the pressure relief section 7 as it flows through each unit protrusion, thereby circulating and impacting the water vapor and accumulating to increase the negative oxygen ion content, ensuring that the negative oxygen ion concentration output by the generating channel meets the usage requirements.

[0044] Specifically, the acceleration section 15 has a constricted structure, including an acceleration surface 5 formed by bulging from the outer wall of the generating channel towards the spiral center. The angle between the acceleration surface 5 and the tangent of the corresponding section of the generating channel is A, where 10°≤A≤40°. By setting the inclined acceleration surface 5, the cross-sectional area of ​​the generating channel is gradually reduced, thereby increasing the flow velocity of water vapor under constant pressure and flow rate, preparing for impact. Preferably, A = 25°. In addition, the parameter A can also be 10°, 20°, 30°, 40°, etc., as long as it meets the requirement of 10°≤A≤40°, it should be considered as a specific implementation of this embodiment.

[0045] Specifically, the impact section 16 is constricted and has an impact surface 6. The impact surface 6 is formed by bulging from the outer wall of the generating channel towards the spiral center. The angle between the impact surface 6 and the tangent of the corresponding section of the generating channel is B, where 40° < B ≤ 85°. By setting the inclined impact surface 6, the cross-sectional area of ​​the generating channel is drastically reduced, creating an impact effect and obtaining negative oxygen ions by blocking the transport of water vapor, thus effectively increasing the production of negative oxygen ions. In a preferred embodiment, B = 70°. In addition, the parameter B can also be 40°, 50°, 60°, 85°, etc. As long as the requirement of 40° < B ≤ 85° is met, it should be considered as a specific implementation of this embodiment.

[0046] Specifically, the pressure relief section 7 has a flared structure, and the cross-sectional area of ​​the pressure relief section 7 is larger than that of the impact section 16. By increasing the cross-sectional area, it provides diffusion space for the flowing water vapor, thereby effectively creating turbulence and ensuring that the water vapor can be guided to pass through the subsequent unit protrusions again and generate negative oxygen ions.

[0047] In this embodiment, the inner wall of the generating channel is provided with a guide protrusion 8 between adjacent unit protrusions to guide water vapor to flow along the impact surface 6. The guide protrusion 8 is provided on the inner wall, and the water vapor flowing along the inner wall of the generating channel will flow towards the outer wall of the generating channel under the guidance of the guide protrusion 8, thereby ensuring that the water vapor can flow along the acceleration surface 5 and the impact surface 6, and ensuring that the water vapor effectively collides with the impact surface 6 after acceleration and generates negative oxygen ions.

[0048] In this embodiment, the unit protrusions laid along the generating channel can have some parameters adjusted as needed, so that the unit protrusions located at different positions in the generating channel have different functional effects. Parameter adjustment includes, but is not limited to, the following methods:

[0049] Method 1: The parameter A in each unit protrusion is gradually increased along the direction of water vapor flow in the generation channel to gradually increase the acceleration intensity. By increasing parameter A, the tilt angle of the acceleration surface 5 is increased, thereby improving the acceleration effect.

[0050] Method 2: The length of the acceleration section 15 within each unit protrusion increases gradually along the direction of water vapor flow in the generation channel to gradually increase the water vapor flow rate. By increasing the length of the acceleration section 15, the acceleration time is extended, thereby improving acceleration stability.

[0051] In this embodiment, the impact surface 6 is provided with impact protrusions 17, the length direction of which is perpendicular to the direction of water vapor flow. The impact protrusions 17 can be elongated and run through the impact surface 6, or they can be multiple segmented sections, which reduces the impact on water vapor flow velocity, enhances the impact effect, and increases the production of negative oxygen ions.

[0052] The other structures and effects of the negative ion generator described in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

[0053] Example 3:

[0054] Compared to Embodiment 1 or 2, this embodiment provides another negative oxygen ion generator.

[0055] like Figure 5 The negative ion generator shown has a generating section 3 that is conical with an upward bulge in the middle. The generating channel is spirally arranged from the inside out to guide water and vapor to flow towards the outlet 10. The inlet 9 of the generating channel is higher than the outlet 10, and the bottom wall of the generating channel is inclined from the inlet 9 to the outlet 10. This allows the liquid water accumulated in the generating channel to flow towards the outlet 10 by its own gravity. The direction of water flow is consistent with the direction of water vapor transport, which not only ensures that the water source in the generating channel can be smoothly discharged, but also effectively reduces the loss of water vapor kinetic energy, thereby maintaining the water vapor flow rate and ensuring the output of negative oxygen ions.

[0056] The other structures and effects of the negative ion generator described in this embodiment are the same as those in Embodiment 1 or 2, and will not be repeated here.

Claims

1. A spiral-shaped negative oxygen ion generator, comprising a tank (1) with an internal receiving cavity, a steam / water supply section (2) and a generating section (3) disposed within the receiving cavity, wherein the generating section (3) receives water vapor generated from the steam / water supply section (2) and forms negative oxygen ions, characterized in that, The generating part (3) includes a spirally coiled generating channel. Friction protrusions (4) are provided on the outer side wall of the generating channel away from the spiral center. Water vapor flowing outward along the spiral path in the generating channel will hit the friction protrusions (4) in sequence under centrifugal force to accumulate and increase the concentration of negative oxygen ions.

2. The spiral-shaped negative oxygen ion generator according to claim 1, characterized in that, The inlet (9) of the generating channel is located at the spiral center of the generating part (3), and the outlet (10) of the generating channel is located at the periphery of the generating part (3). Water vapor flows from the inside to the outside along the spiral path in the generating channel.

3. A spiral-shaped negative oxygen ion generator according to claim 2, characterized in that, The friction protrusion (4) includes a number of unit protrusions arranged sequentially along the generation channel. The unit protrusion includes an acceleration section (15), an impact section (16), and a pressure relief section (7) arranged sequentially. The impact section (16) is constricted and has an impact surface (6). Water vapor flows sequentially along the generation channel through each unit protrusion and generates negative oxygen ions in batches after contacting each impact surface (6).

4. A spiral-shaped negative oxygen ion generator according to claim 3, characterized in that, The acceleration section (15) has a constricted structure, including an acceleration surface (5) formed by the outer wall of the generating channel bulging towards the spiral center. The angle between the acceleration surface (5) and the tangent of the corresponding section of the generating channel is A, where 10°≤A≤40°.

5. A spiral-shaped negative oxygen ion generator according to claim 4, characterized in that, The parameter A in each unit protrusion increases gradually along the direction of water vapor flow in the generation channel to gradually increase the acceleration intensity; or, the length of the acceleration section (15) in each unit protrusion increases gradually along the direction of water vapor flow in the generation channel to gradually increase the water vapor velocity.

6. A spiral-shaped negative oxygen ion generator according to claim 3, characterized in that, The impact surface (6) is formed by the outer wall of the generating channel bulging towards the spiral center. The angle between the impact surface (6) and the tangent of the corresponding section of the generating channel is B, where 40° < B ≤ 85°. Alternatively, the pressure relief section (7) has a flared structure, and the cross-sectional area of ​​the pressure relief section (7) is larger than the cross-sectional area of ​​the impact section (16). Alternatively, the impact surface (6) is provided with an impact protrusion (17), the length direction of which is perpendicular to the direction of water vapor flow. Alternatively, the inner wall of the generating channel is provided with a guide protrusion (8) between adjacent unit protrusions to guide water vapor to flow along the impact surface (6).

7. A spiral-shaped negative oxygen ion generator according to claim 2, characterized in that, The generating section (3) is a cone shape with the center raised upwards, and the generating channel is spirally arranged from the inside to the outside to guide water and steam to flow to the outlet (10).

8. A spiral-shaped negative oxygen ion generator according to claim 2, characterized in that, The generating channel is formed by bending a tube with a square cross-section; or the outlet (10) is constricted; or the generating part (3) is located at the top of the receiving cavity.

9. A spiral-shaped negative oxygen ion generator according to any one of claims 2-8, characterized in that, The water vapor supply unit includes a high-pressure gas pipe (11) and a water pumping pipe (12). The high-pressure gas pipe (11) is connected between the water pumping pipe (12) and the inlet (9). The middle section of the high-pressure gas pipe (11) is formed into a Venturi section (13) by narrowing its diameter. One end of the water pumping pipe (12) is connected to the Venturi section (13), and the other end extends downward to the bottom of the tank (1). When the external high-pressure gas flows through the Venturi section (13), it draws water from the bottom of the tank (1) through the water pumping pipe (12) and mixes it to form water vapor that is transported to the inlet (9).

10. A spiral-shaped negative oxygen ion generator according to claim 9, characterized in that, The top of the tank (1) is provided with an air outlet (14) communicating with the containment cavity and an air inlet (18) for receiving external high-pressure airflow. The high-pressure air pipe (11) is exposed at the end of the tank (1) to form the air inlet (18). The high-pressure airflow received through the air inlet (18) mixes with the water source and passes through the generating channel to form negative oxygen ions. The negative oxygen ions in the containment cavity are discharged with the water vapor through the air outlet (14); or, the front section of the high-pressure air pipe (11) is provided with a flow regulating valve (19) and a flow meter (20).

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