A negative ion concentration control device for a negative ion gas washing bottle

Abstract

This utility model relates to the field of cleaning equipment technology, specifically to a negative ion concentration control device for a negative ion gas washing bottle, comprising a housing, an air inlet at the top of the housing for air entry, an air inlet connected to an air inlet pipe, and an air pump installed on the air inlet pipe; an air distribution plate for air diffusion is fixed inside the housing, a negative ion generator for generating negative ions is arranged below the air distribution plate, an exhaust port for discharging negative ion gas is opened at the bottom of the housing, an exhaust port connected to an exhaust pipe, a valve is installed on the exhaust pipe, a negative ion detector is connected to the bottom of the housing, the negative ion detector has a probe for detecting negative ion concentration, and a detection port for the probe to extend into is opened on the exhaust pipe.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, specifically to a negative ion concentration control device for a negative ion gas washing bottle. Background Technology

[0002] In the production process of prickly pear juice, the juice, rich in vitamin C, organic acids, and various natural nutrients, possesses physicochemical properties that make it an ideal environment for microbial growth. If impurities, bacteria, or residues from previous processing remain on the inner walls of the bottling bottles, these contaminants will react with the nutrients in the juice, causing it to spoil rapidly during storage, deteriorate in flavor, and reduce product quality. Furthermore, it may foster the growth of harmful bacteria, posing a direct threat to the health of consumers. Therefore, thoroughly cleaning the inner walls of the bottling bottles before bottling is crucial for ensuring product quality and drinking safety. The core requirements are that the bottles are free of visible stains and that microbial indicators strictly meet standards.

[0003] Traditional bottle cleaning methods typically involve soaking the bottles in disinfectant followed by rinsing them with plenty of water. However, this method has the following drawbacks: 1. To thoroughly remove the disinfectant, multiple rinses with a large amount of water are required to ensure no disinfectant residue remains in the bottles, wasting significant water resources and increasing wastewater treatment costs, which contradicts the concept of green and environmentally friendly development; 2. If residual moisture remains in the bottles after cleaning, it may dilute the juice concentration and provide a humid environment for microbial growth. Therefore, the bottles usually need to be air-dried or blow-dried after cleaning, a rather cumbersome and complex process.

[0004] In comparison, using negative ion gas rinsing to clean filling bottles has significant advantages. Specifically, negative ions have a strong bactericidal and disinfecting effect. By interacting with the cell membranes of microorganisms through charge, they can disrupt the cell membrane structure, thereby killing bacteria, mold, and other microorganisms. At the same time, negative ion gas can carry away and remove dust particles and tiny contaminants inside the bottle during rinsing, achieving a cleaning effect. In addition, gas rinsing does not produce water residue, avoiding any impact on the quality of the juice. Furthermore, negative ions can degrade naturally in the environment, posing no risk of chemical residue, making it more environmentally friendly and safe. It also eliminates wastewater treatment costs, thus its application in the food filling industry is gradually gaining attention.

[0005] In the negative ion air washing process, the concentration of negative ions is a key factor affecting the cleaning effect and production cost. If the concentration of negative ions is too low, its sterilization and decontamination capabilities are insufficient, failing to thoroughly remove microorganisms and contaminants from the bottle, resulting in unsatisfactory cleaning results and difficulty in ensuring the quality and safety of the juice after bottling. If the concentration of negative ions is too high, the equipment needs to output a higher voltage, leading to higher electricity costs.

[0006] However, most existing negative ion air cleaning equipment uses a fixed parameter negative ion generation mode, which cannot adjust the negative ion concentration, resulting in poor cleaning effect or energy waste. Utility Model Content

[0007] The present invention aims to provide a negative ion concentration control device for a negative ion gas washing bottle, so as to solve the technical problem that the existing technology cannot control the concentration of negative ions.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] 1) A negative ion concentration control device for a negative ion gas washing bottle, comprising a housing, an air inlet at the top of the housing for air entry, an air inlet connected to an air inlet pipe, and an air pump installed on the air inlet pipe; an air distribution plate for air diffusion is fixed inside the housing, a negative ion generator for generating negative ions is arranged below the air distribution plate, an exhaust port for discharging negative ion gas is opened at the bottom of the housing, an exhaust port connected to an exhaust pipe, a valve installed on the exhaust pipe, a negative ion detector connected to the bottom of the housing, the negative ion detector having a probe for detecting negative ion concentration, and a detection port for the probe to extend into the exhaust pipe.

[0010] Before performing negative ion gas washing on the filling bottles, it is necessary to adjust the concentration of negative ions in the negative ion gas output by this invention to ensure that it reaches the required negative ion concentration range.

[0011] The air pump draws outside air into the housing through the intake pipe. The air is evenly diffused by the air distributor and flows through the negative ion generator, where it is ionized to generate negative ion gas. Simultaneously, a probe monitors the negative ion concentration inside the housing in real time through the detection port. When the negative ion concentration measured by the detector is lower than the desired concentration, the valve opening is reduced. This decreases the exhaust speed of the exhaust pipe and prolongs the gas's residence time inside the housing. During this time, the negative ions continuously generated by the generator accumulate inside the housing, causing the concentration to gradually increase. Conversely, when the negative ion concentration measured by the detector is lower than the desired concentration, the valve opening is increased. This accelerates the exhaust speed and shortens the gas residence time. At this point, the negative ions are quickly expelled before they have fully accumulated, and the negative ion concentration inside the housing gradually decreases.

[0012] During the valve opening adjustment process, when the negative ion concentration measured by the negative ion detector is within the required range, the valve opening is maintained, and the negative ion concentration in the negative ion gas discharged from the exhaust pipe can be stabilized within the required concentration range. After adjustment, the negative ion gas within the required concentration range is transported from the exhaust port through the exhaust pipe to the filling bottle for negative ion gas washing.

[0013] By dynamically feeding back concentration data through the probe, a basis for subsequent concentration control can be provided, which can solve the problem that the negative ion concentration of existing negative ion gas washing equipment is not adjustable. Negative ion gas cleaning replaces water washing, which can reduce water waste and eliminate the risk of microbial growth caused by residual moisture in the filling bottle, significantly improving the safety of prickly pear juice filling.

[0014] 2) According to the negative ion gas washing bottle negative ion concentration control device described in 1), wherein: the longitudinal section of the gas distribution plate is funnel-shaped, the gas distribution plate is fixed inside the shell, the gas distribution plate divides the inner cavity of the shell from top to bottom into an upper chamber and a lower chamber, the side plate surface of the gas distribution plate is provided with a number of evenly spaced side gas distribution holes, the bottom plate surface of the gas distribution plate is provided with a number of evenly spaced bottom gas distribution holes, and the side gas distribution holes and the bottom gas distribution holes connect the upper chamber and the lower chamber.

[0015] When the air pumped in by the air pump enters the upper chamber, some of the air passes through the bottom air distribution holes and some passes through the side air distribution holes when the airflow hits the air distribution plate, thus diffusing the air. This structure allows the air distribution plate to diffuse through the air. As the diffused air moves downwards to the negative ion generator, it has a larger contact area with the generator, improving the efficiency of negative ion generation.

[0016] 3) A negative ion concentration control device for a negative ion gas washing bottle as described in 2), wherein: a support plate is provided in the lower chamber, the support plate is fixed inside the shell, the support plate divides the lower chamber from top to bottom into a negative ion generating chamber and a detection chamber for detecting negative ion concentration, a plurality of evenly spaced vent holes are provided on the support plate, the vent holes connect the negative ion generating chamber and the detection chamber, and the negative ion generator is located in the negative ion generating chamber.

[0017] After the negative ion generator produces negative ion gas in the negative ion generation chamber, the negative ion gas passes through the vents on the support plate and reaches the detection chamber. The probe directly collects negative ion concentration data in the detection chamber. The evenly distributed vents on the support plate can further mix the negative ion gas, making the negative ion gas concentration in the detection chamber more uniform.

[0018] 4) A negative ion concentration control device for a negative ion gas washing bottle according to 3), wherein: the negative ion generator is fixed on the upper surface of the support plate, the negative ion generator has a vertical high-voltage output line, and the output end of the high-voltage output line is connected to a carbon brush.

[0019] The negative ion generator contains a high-voltage power supply. A high-voltage output line is electrically connected to this power supply, which outputs high voltage to the carbon brush. The tip of the carbon brush generates a corona discharge, ionizing the air. Air molecules are ionized, producing a large number of free electrons. These free electrons quickly combine with surrounding neutral molecules, generating negatively charged ions and forming a negative ion gas. Because the high-voltage output line is vertical, the carbon brush connected to it is positioned directly opposite the downward-flowing airflow, enhancing the diffusion efficiency of negative ions. Furthermore, the carbon brush improves ionization stability, ensuring continuous and efficient generation of negative ions.

[0020] 5) A negative ion concentration control device for a negative ion gas washing bottle as described in 3), wherein: a mounting box is fixedly provided on the upper surface of the support plate, the top of the mounting box has an opening, a cover plate is detachably connected to the opening, the mounting box has a receiving chamber for placing a negative ion generator, the negative ion generator has multiple high-voltage output lines that pass through the mounting box and extend toward the negative ion generation chamber, and the output end of the high-voltage output lines is connected to a carbon brush.

[0021] After removing the cover from the opening, the negative ion generator can be placed in the housing chamber of the mounting box. Multiple high-voltage output lines pass through the mounting box and extend into the negative ion generation chamber, resulting in a radial arrangement of the high-voltage output lines. The carbon brushes on the high-voltage output lines extending from the top of the mounting box face the downward-flowing airflow, while the carbon brushes on the high-voltage output lines extending from the side wall of the mounting box are perpendicular to the downward-flowing airflow. Compared to all high-voltage output lines being vertical, this allows for greater airflow ionization, resulting in higher ionization efficiency.

[0022] The beneficial effects of this utility model are as follows:

[0023] This invention uses a negative ion detector probe to monitor the negative ion concentration inside the casing in real time, and dynamically adjusts the air pump power and valve opening based on feedback data: when the concentration is insufficient, the valve opening is reduced to decrease the exhaust speed, which can quickly increase the negative ion concentration; when the concentration is too high, the valve opening is increased to accelerate exhaust, which can quickly decrease the negative ion concentration. This invention effectively solves the problem of the non-adjustable negative ion concentration in existing negative ion gas washing equipment. Simultaneously, replacing the traditional water washing process with negative ion gas not only significantly reduces water consumption but also completely eliminates the risk of microbial growth caused by residual moisture in the filling bottles. Furthermore, the funnel-shaped porous design of the air distribution plate and the multi-directionally distributed carbon brush structure further optimize airflow diffusion and ionization efficiency. Attached Figure Description

[0024] Figure 1 This is a cross-sectional structural schematic diagram of a negative ion concentration control device for a negative ion gas washing bottle according to Embodiment 1 of the present invention.

[0025] Figure 2 This is a cross-sectional structural schematic diagram of Embodiment 2 of the negative ion concentration control device for a negative ion gas washing bottle according to the present invention.

[0026] In the diagram: 1. Shell; 2. Air inlet pipe; 3. Air distribution plate; 31. Side air distribution hole; 32. Bottom air distribution hole; 4. Negative ion generator; 41. High voltage output line; 42. Carbon brush; 5. Exhaust pipe; 6. Valve; 7. Negative ion detector; 8. Probe; 9. Support plate; 10. Vent hole; 11. Mounting box; 12. Cover plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the above description of this utility model, it should be noted that the terms "one side," "the other side," 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 utility model product is in use. They are only for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0032] Example 1

[0033] Please see Figure 1 This utility model discloses a negative ion concentration control device for a negative ion gas washing bottle, comprising a shell 1 made of insulating material, an air inlet at the top of the shell 1 for air entry, an air inlet pipe 2 connected to the air inlet pipe 2 by a threaded connection; an air distribution plate 3 made of insulating material is bonded inside the shell 1 for air diffusion, a negative ion generator 4 for generating negative ions is disposed below the air distribution plate 3, and an exhaust port at the bottom of the shell 1 for discharging negative ion gas, an exhaust pipe 5 connected to the exhaust port. A valve 6 is connected to the upper part of the housing 1 by a thread. The valve model of this utility model can be L41H-16. A negative ion detector 7 is fixed to the lower part of the housing 1 by bolts and nuts. The negative ion detector 7 has a probe 8 for detecting the concentration of negative ions. A detection port for the probe 8 to extend into is opened on the exhaust pipe 5. The detection port is located between the valve 6 and the exhaust port. A sealing ring made of silicone material is set inside the detection port. The outer circumferential surface of the sealing ring is bonded to the detection port. The probe 8 is interference-fitted to the inner circumferential surface of the sealing ring to prevent negative ion gas from leaking from the detection port.

[0034] Before performing negative ion gas washing on the filling bottles, it is necessary to adjust the concentration of negative ions in the negative ion gas output by this invention to ensure that it reaches the required negative ion concentration range.

[0035] The air pump is activated to pump outside air into the housing 1 through the air inlet pipe 2. The air is evenly diffused through the air distribution plate 3 and flows through the negative ion generator 4, where it is ionized to generate negative ion gas. At the same time, the probe 8 monitors the negative ion concentration inside the housing 1 in real time through the detection port. When the negative ion concentration measured by the negative ion detector 7 is lower than the required concentration, the opening of valve 6 is reduced (the opening of valve 6 refers to the degree to which valve 6 is opened, used to describe the size of the opening of the internal channel of valve 6 (the flow cross section between the valve core and the valve seat), which is a core parameter for controlling the flow rate of fluids (gas, liquid, etc.). At this time, the exhaust speed of the exhaust pipe 5 decreases, and the residence time of the gas in the housing 1 is prolonged. At this time, the negative ions continuously generated by the negative ion generator 4 will accumulate in the housing 1 (the amount generated > the amount discharged), causing the concentration to gradually increase.

[0036] When the negative ion concentration measured by the negative ion detector 7 is lower than the required concentration, the opening of valve 6 is increased. At this time, the exhaust speed is accelerated and the gas residence time is shortened. Since the negative ions are quickly discharged before they have fully accumulated (generation amount < discharge amount), the negative ion concentration inside the casing 1 will gradually decrease.

[0037] Now, let's derive the formula:

[0038] The basic parameters are as follows (adjustable according to the actual equipment): the volume V of the housing 1 is a constant; the negative ion generation rate G under a fixed power of the air pump is a constant (the total amount of negative ions generated per unit time is determined by the air intake when the voltage of the negative ion generator 4 remains constant; here it is assumed that the air pump power is fixed); the natural decay rate k of negative ions is a constant (the proportion of ions that naturally recombine and disappear per unit time); and the maximum exhaust flow rate Q when valve 6 is fully open. max As a constant, the relationship between valve 6 opening degree α (%) and exhaust flow rate Q is: Q = α × Q max / 100 (simplified to a linear relationship, but the actual relationship may deviate slightly due to valve characteristics).

[0039] Negative ion concentration balance formula: At steady state, the amount of negative ions generated per unit time = the amount of negative ions discharged per unit time + the amount of negative ions that naturally decay per unit time, that is: G=Q×C+k×V×C.

[0040] The relationship between the target concentration C (i.e., the concentration of emitted negative ions, which is also the concentration of negative ions measured by the negative ion detector 7) and the opening degree α of valve 6 is as follows:

[0041]

[0042] Therefore, we can deduce that:

[0043]

[0044] Because of G, k, V, Q max Since both values ​​are constant, the opening degree of valve 6 is inversely proportional to the negative ion concentration measured by negative ion detector 7, which provides a theoretical basis for the process of adjusting the opening degree of valve 6 based on the negative ion concentration measured by negative ion detector 7.

[0045] During the adjustment of valve 6 opening, when the negative ion concentration measured by negative ion detector 7 is within the required range, valve 6 opening is maintained, and the negative ion concentration in the negative ion gas discharged from exhaust pipe 5 can be stabilized within the required concentration range. After adjustment, the negative ion gas within the required concentration range is transported from the exhaust port through exhaust pipe 5 to the filling bottle for negative ion gas washing.

[0046] By dynamically feeding back concentration data through probe 8, a basis for subsequent concentration control can be provided, which can solve the problem that the negative ion concentration of existing negative ion gas washing equipment is not adjustable; negative ion gas cleaning replaces water washing, which can reduce water waste and eliminate the risk of microbial growth caused by residual moisture in the filling bottle, significantly improving the safety of prickly pear juice filling.

[0047] In this embodiment: the longitudinal section of the air distribution plate 3 is funnel-shaped. The air distribution plate 3 is bonded to the inside of the shell 1. The air distribution plate 3 divides the inner cavity of the shell 1 from top to bottom into an upper chamber and a lower chamber. The side plate surface of the air distribution plate 3 is provided with a number of evenly spaced side air distribution holes 31. The bottom plate surface of the air distribution plate 3 is provided with a number of evenly spaced bottom air distribution holes 32. The side air distribution holes 31 and the bottom air distribution holes 32 connect the upper chamber and the lower chamber.

[0048] After the air pumped in enters the upper chamber, when the airflow touches the air distribution plate 3, some air passes through the bottom air distribution hole 32 and some air passes through the side air distribution hole 31, thus diffusing the air. This structure allows the air distribution plate 3 to diffuse the air. When the diffused air moves downwards to the negative ion generator 4, the contact area with the generator is larger, improving the negative ion generation efficiency.

[0049] In this embodiment: A support plate 9 is provided in the lower chamber. The support plate 9 is made of insulating material and is bonded to the inside of the housing 1. The support plate 9 divides the lower chamber from top to bottom into a negative ion generating chamber and a detection chamber for detecting the concentration of negative ions. Several evenly spaced vent holes 10 are provided on the support plate 9. The vent holes 10 connect the negative ion generating chamber and the detection chamber. The negative ion generator 4 is located in the negative ion generating chamber, and the probe 8 is located in the detection chamber.

[0050] After the negative ion generator produces negative ion gas in the negative ion generation chamber, the negative ion gas passes through the vent holes 10 on the support plate 9 and reaches the detection chamber. The probe 8 directly collects the negative ion concentration data in the detection chamber. The vent holes 10 evenly distributed on the support plate 9 can mix the negative ion gas again, making the negative ion gas concentration in the detection chamber more uniform.

[0051] In this embodiment: the negative ion generator 4 is fixed to the upper surface of the support plate 9 by bolts and nuts. The negative ion generator 4 has a vertically positioned high-voltage output line 41, and the output end of the high-voltage output line 41 is connected to a carbon brush 42. The negative ion generator 4 has a high-voltage power supply, and the high-voltage output line 41 is electrically connected to the high-voltage power supply. The high-voltage power supply outputs high voltage to the carbon brush 42, and the tip of the carbon brush 42 generates a corona discharge to ionize the air. The molecules in the air are ionized, generating a large number of free electrons. These free electrons quickly combine with the surrounding neutral molecules, thereby generating negatively charged negative ions and forming a negative ion gas. Because the high-voltage output line 41 is vertical, the carbon brush 42 connected to its output end is kept facing the downward airflow, which can enhance the diffusion efficiency of negative ions. In addition, the carbon brush 42 can improve ionization stability and ensure continuous and efficient generation of negative ions.

[0052] Example 2

[0053] Please see Figure 2The difference between this embodiment and Embodiment 1 is that: the upper surface of the support plate 9 is connected to the mounting box 11 by bolts and nuts. The top of the mounting box 11 has an opening, and an arched cover plate 12 is threaded into the opening. The mounting box 11 has a receiving chamber for placing the negative ion generator 4. The negative ion generator 4 is fixed in the receiving chamber by bolts and nuts. The negative ion generator 4 has multiple high-voltage output lines 41 that pass through the mounting box 11 and extend toward the negative ion generating chamber. The output end of the high-voltage output lines 41 is connected to a carbon brush 42. Specifically, the circumferential surface of the mounting box 11 has a side mounting hole for the high-voltage output lines 41 to pass through, and the cover plate 12 has two top mounting holes for the high-voltage output lines 41 to pass through. A silicone ring is fixed in both the side mounting hole and the top mounting hole. The outer circumferential surface of the silicone ring is bonded to the hole wall of the side mounting hole or the top mounting hole, and the inner circumferential surface of the silicone ring is interference-fitted with the outer circumferential surface of the high-voltage output lines 41.

[0054] After removing the cover plate 12 from the opening, the negative ion generator 4 can be fixed to the receiving chamber of the mounting box 11 with bolts and nuts. Multiple high-voltage output lines 41 pass through the mounting box 11 and extend into the negative ion generation chamber, so that the high-voltage output lines 41 extend radially. Among them, the carbon brushes 42 on the high-voltage output lines 41 that pass through the top mounting hole face the downward airflow and are perpendicular to the downward airflow. Compared with the embodiment where all the high-voltage output lines 41 are arranged vertically, the ionization range is larger, more airflow can be ionized, and the ionization efficiency is higher. In addition, the arched cover plate 12 allows the airflow to flow downward along the outer wall of the cover plate 12 after touching it. Compared with the flat cover plate 12, the airflow will have a rebound process after touching the flat cover plate 12. Overall, the arched cover 12 can accelerate the downward flow rate of airflow. Airflow that has not been ionized by the carbon brush 42 on the high-voltage output line 41 that passes through the top mounting hole can flow downward quickly, so that it can be ionized by the carbon brush 42 on the high-voltage output line 41 that passes through the opening in the side wall of the mounting box, thereby improving the ionization efficiency.

[0055] The above are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A negative ion concentration regulating device for a negative ion air washing bottle, comprising a shell, characterized in that: The top of the housing has an air inlet for air entry, which is connected to an air inlet pipe, and an air pump is installed on the air inlet pipe. An air distribution plate for air diffusion is fixed inside the housing, and a negative ion generator for generating negative ions is located below the air distribution plate. The bottom of the housing has an exhaust port for discharging negative ion gas, which is connected to an exhaust pipe, and a valve is installed on the exhaust pipe. A negative ion detector is connected to the bottom of the housing, and the negative ion detector has a probe for detecting the concentration of negative ions. A detection port for the probe to extend into is located on the exhaust pipe.

2. The negative ion concentration regulating device for the negative ion air washing bottle according to claim 1, characterized in that: The air distribution plate has a funnel-shaped longitudinal section and is fixed inside the shell. The air distribution plate divides the inner cavity of the shell into an upper chamber and a lower chamber from top to bottom. The side plate of the air distribution plate has a number of evenly spaced side air distribution holes, and the bottom plate of the air distribution plate has a number of evenly spaced bottom air distribution holes. The side air distribution holes and the bottom air distribution holes connect the upper chamber and the lower chamber.

3. The negative ion concentration control device for a negative ion gas washing bottle according to claim 2, characterized in that: A support plate is provided in the lower chamber and is fixed inside the shell. The support plate divides the lower chamber from top to bottom into a negative ion generating chamber and a detection chamber for detecting the concentration of negative ions. Several evenly spaced vent holes are provided on the support plate, which connect the negative ion generating chamber and the detection chamber. The negative ion generator is located in the negative ion generating chamber.

4. The negative ion concentration control device for a negative ion gas washing bottle according to claim 3, characterized in that: The negative ion generator is fixed on the upper surface of the support plate. The negative ion generator has a vertical high-voltage output line, and the output end of the high-voltage output line is connected to a carbon brush.

5. The negative ion concentration control device for a negative ion gas washing bottle according to claim 3, characterized in that: The upper surface of the support plate is fixed with a mounting box. The top of the mounting box has an opening, and a cover plate is detachably connected to the opening. The mounting box has a accommodating chamber for placing a negative ion generator. The negative ion generator has multiple high-voltage output lines that pass through the mounting box and extend toward the negative ion generation chamber. The output end of the high-voltage output lines is connected to a carbon brush.

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