Ion calibration device

Abstract

The present invention discloses an ion calibration device, comprising an ion saturation chamber, a contraction section, a diffusion section, a test section and a power section which are interconnected, wherein a control chamber is connected between the contraction section and the diffusion section, and the control chamber has a cavity surrounded by an outer wall, a plurality of partitions and a plurality of polarization plates located in the cavity; the partition divides the cavity into a plurality of channels. By adding a control chamber to the ion calibration device, the control chamber has a positive plate and a negative plate facing each other, and a gap is formed between the positive plate and the negative plate to absorb different ions, so as to control the mobility of the ions, thereby realizing an ideal ion concentration environment, so as to accurately calibrate the ion measuring instrument.

Description

Technical Field

[0001] The invention relates to an ion calibration device, in particular to an ion calibration device capable of detecting ion concentration. Background Art

[0002] The different sizes of ions in the air and the difficulty in generating a stable ion source increase the difficulty of accurate detection by ion concentration measuring instruments. Currently, there is no ion calibration device on the market that can control ion concentration, which means that it is impossible to calibrate ion measuring instruments when generating constant negative ion concentrations of different sizes.

[0003] Therefore, it is necessary to design an ion calibration device to detect the measurement error of the ion measuring instrument to confirm the concentration of the measured ions. Summary of the invention

[0004] The object of the present invention is to provide an ion calibration device capable of producing a stable ion concentration.

[0005] To achieve the above-mentioned purpose, the present invention has the following technical solutions: an ion calibration device, comprising an ion saturation chamber, a contraction section, a diffusion section, a test section and a power section which are interconnected, the ion saturation chamber providing an ion source, the power section comprising a driving motor and a fan connected to the driving motor, when the driving motor rotates, the fan is driven to rotate and form an airflow to drive the ion flow in the ion saturation chamber, and the ion flow passes through the contraction contraction and diffusion sections and then enters the test section; an ion detection instrument is installed in the test section, a control chamber is connected between the contraction section and the diffusion section, the control chamber has a cavity surrounded by outer side walls and a plurality of polarization plates located in the cavity; the cavity connects the contraction section and the diffusion section, the polarization plate is arranged in the cavity along the left-right direction, and the polarization plate comprises a positive plate and a negative plate facing each other, and a gap is formed between the positive plate and the negative plate to control the flow of air ions.

[0006] Further improvement plan: The control chamber has several partitions, and the partitions divide the cavity into several channels. When voltage is applied to the positive plate and the negative plate in at least one channel, an electric field is formed, and the charged ions can be moved under the action of the electric field. Some negative ions are moved to the positive plate and collected, and some positive ions are moved to the negative plate and collected, and the remaining ions pass through the gap and flow into the test section.

[0007] Further improvement plan: The ion calibration device also includes multiple support plates, the positive plate is installed on a support plate to form a whole and is arranged on one side of the channel, the negative plate is installed on another support plate to form another whole and is arranged on the other side of the channel, and the positive plate and the negative plate are arranged opposite to each other with a gap.

[0008] Further improvement scheme: The positive plate and the negative plate are L-shaped and are locked to the support plate by screws.

[0009] Further improvement scheme: at least one positive electrode plate or negative electrode plate is U-shaped, and a negative electrode plate or a positive electrode plate is arranged in the middle of the U shape.

[0010] Further improvement scheme: the positive and negative electrode plates are positive copper plates and negative copper plates.

[0011] Further improvement plan: the support plate is a support copper plate, and several channels are separated by partitions and are not connected.

[0012] Further improvement: the contraction section is provided with an inlet connected to the ion saturation chamber outlet and a contraction section outlet connected to the control chamber and having a smaller cross-sectional size than the contraction section inlet, and the contraction section outlet is connected to the control chamber.

[0013] Further improvement plan: The ion calibration device is also provided with a pre-collection section, the openings at both ends of the pre-collection section are different in size and are funnel-shaped, wherein the larger opening end is connected to one end of the test section, and the smaller opening end faces the drive motor.

[0014] Further improvement plan: the inlet end of the ion saturation chamber is provided with a plurality of openings, and Hepa cotton is placed in the ion saturation chamber.

[0015] The multifunctional wind system of the present invention has the following beneficial effects: by adding a control room in the ion calibration device, the control room has a positive plate and a negative plate facing each other, and a gap is formed between the positive plate and the negative plate to absorb different ions to control the concentration of ions entering the test section, thereby achieving an ideal ion concentration environment to accurately calibrate the ion measuring instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the ion calibration device of the present invention;

[0017] Figure 2 is a cross-sectional schematic diagram of the ion calibration device of the present invention;

[0018] Figure 3 for Figure 1 A schematic diagram of the control room shown;

[0019] Figure 4 for Figure 1 A schematic diagram of the front end shown;

[0020] Figure 5 for Figure 4 A local enlarged schematic diagram is shown. DETAILED DESCRIPTION

[0021] See also Figures 1 to 5As shown, it is a schematic diagram of an ion calibration device 100 disclosed in the present invention, which includes an ion saturation chamber 1, a contraction section 2, a control chamber 3, a diffusion section 4, a test section 5 and a power section 6 that are interconnected and are all arranged in a space. The inlet end of the ion saturation chamber is provided with a plurality of openings 10, and the power section 5 is connected to the outside to form a gas inflow and outflow path, and the inlet end of the ion saturation chamber is provided with Hepa cotton to purify the air.

[0022] The ion saturation chamber 1 provides an ion source, the power section 6 includes a driving motor 61 and a fan 62 connected to the driving motor, and the control chamber 3 is arranged between the contraction section 2 and the diffusion section 4; the contraction section 2 is provided with an inlet connected to the ion saturation chamber outlet and a contraction section outlet connected to the control chamber and having a smaller cross-sectional size than the contraction section inlet, and the contraction section outlet is connected to the control chamber.

[0023] The control chamber 3 has a cavity 32 surrounded by an outer wall 31, several partitions 33 and multiple polarization plates 34 located in the cavity; the partition divides the cavity into several channels 35, the cavity 32 connects the contraction section 2 and the diffusion section 4, the polarization plate 34 is arranged in the channel 35 along the left and right direction, and the polarization plate includes a positive plate 341 and a negative plate 342 facing each other, and a gap 340 is formed between the positive plate 341 and the negative plate 342 to control the mobility of ions. An ion detection instrument 51 is installed in the test section 5, and the concentration of ions can be detected by the mobility of ions entering the ion detection instrument 51, which will be described in detail later.

[0024] The ion calibration device is also provided with a pre-collection section 7, the openings at both ends of the pre-collection section are of different sizes and are funnel-shaped, wherein the larger opening end is connected to the end of the test section 5, and the smaller opening end faces the drive motor 61, so as to form a closed space between the ion saturation chamber 1, the contraction section 2, the control chamber 3, the diffusion section 4, the test section 5 and the power section 6.

[0025] The ion calibration device also includes a plurality of support plates 36 installed in the channel 35, the positive plate 341 is installed on a support plate 36, and forms an integral body and is arranged in one side of the channel 35, the negative plate 342 is installed on another support plate 36, and forms another integral body and is arranged in the other side of the same channel 35, and the positive plate 341 and the negative plate 342 are arranged opposite to each other. The positive plate 341 and the negative plate 342 are both L-shaped and locked on the support plate 36 by screws 343; of course, at least one positive plate 341 or negative plate 342 can also be arranged in a U shape, and the negative plate 341 or positive plate 342 can be arranged in the middle of the U shape, and the positive and negative plates can be arranged facing each other, and a gap 340 is formed between the two.

[0026] In this embodiment, the positive and negative electrode plates are a positive copper plate 341 and a negative copper plate 342 made of copper material, and the support plate 36 is a support copper plate. Several channels 35 are separated by the partition 33 and are not connected to each other, so as to control the ion migration state in the blocked channels 33.

[0027] When the driving motor 61 rotates, the fan 62 is driven to rotate and form an airflow to drive the ions in the ion saturation chamber 1 to migrate out, and the ions flow through the contraction section 2 and the diffusion section 4, and then enter the test section 5. At the same time, when the positive copper plate 341 and the negative copper plate 342 in at least one channel 35 are voltaged, and an electric field is formed, the charged ions will move under the action of the electric field, part of the negative ions move to the positive copper plate 341 and are collected, part of the positive ions move to the negative copper plate 342 and are collected, and the remaining ions pass through the gap 340 or part of the channel 35 and flow into the test section.

[0028] The present invention controls the ion mobility by placing a control chamber 4 in the ion calibration device to ensure a stable ion concentration in the test section 5. That is, when the motor is rotating, a stable wind speed is provided to drive the ions to migrate from the ion saturation chamber 1 into the test section 5. When the ion concentration does not meet expectations, the polarization copper plate 34 in the channel 35 can be connected to a voltage. Of course, the polarization copper plate 34 in one channel 35 or the polarization copper plates 34 in multiple channels can be opened according to the situation, and the voltage on the polarization copper plate can be controlled to control the air with a certain ion concentration to flow into the test section.

[0029] When voltage is applied to the polarized copper plate 34, the positive and negative ions in the gap 340 will move toward the negatively polarized copper plate 342 and the positively polarized copper plate 341 and be adsorbed on the polarized copper plates. Ions that are not adsorbed (such as larger ions) will continue to move toward the test section, and the voltage on the polarized copper plate 34 can be controlled to control the air ions that migrate into the test section.

[0030] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

1. An ion calibration device, comprising an ion saturation chamber, a contraction section, a diffusion section, a test section and a power section which are interconnected, wherein the ion saturation chamber provides an ion source, the power section comprises a drive motor and a fan connected to the drive motor, when the drive motor rotates, the fan is driven to rotate and form an airflow to drive the ions in the ion saturation chamber to flow, and the ions flow through the contraction section, the diffusion section, and then enter the test section; an ion detection instrument is installed in the test section, characterized in that: A control chamber is connected between the contraction section and the diffusion section, and the control chamber has a cavity surrounded by an outer wall, a plurality of partitions and a plurality of polarization plates located in the cavity; the partition divides the cavity into a plurality of channels, and the plurality of channels are separated by the partition but not connected, the cavity connects the contraction section and the diffusion section, the polarization plate is arranged in the channel along the left-right direction, and the polarization plate includes a positive plate and a negative plate facing each other, and a gap is formed between the positive plate and the negative plate to control the flow of ions; the ion calibration device also includes a plurality of support plates, the positive plate is installed on a support plate, and forms a whole and is arranged in one side of the channel The negative electrode plate is mounted on another supporting plate to form another integral body and is arranged on the other side of the channel, and the positive electrode plate and the negative electrode plate are arranged opposite to each other at intervals; the contraction section is provided with an inlet connected to the outlet of the ion saturation chamber and a contraction section outlet connected to the control chamber and having a smaller cross-sectional size than the contraction inlet, and the contraction section outlet is connected to the control chamber; the ion calibration device is also provided with a pre-collection section, the openings at both ends of the pre-collection section are different in size and funnel-shaped, wherein the larger opening end is connected to one end of the test section, and the smaller opening end faces the drive motor; the inlet end of the ion saturation chamber is provided with a plurality of openings, and Hypa cotton is placed in the ion saturation chamber.

2. The ion calibration device according to claim 1, characterized in that: The positive plate and the negative plate are L-shaped and are locked on the support plate by screws.

3. The ion calibration device according to claim 1, characterized in that: At least one positive plate or negative plate is U-shaped, and the negative plate or positive plate is arranged in the middle of the U-shape.

4. The ion calibration device according to any one of claims 1 to 3, characterized in that: The positive electrode plate and the negative electrode plate are a positive electrode copper plate and a negative electrode copper plate.

5. The ion calibration device according to claim 4, characterized in that: The support plate is a support copper plate.

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