A high-efficiency ion collection device

Abstract

This invention discloses a high-efficiency ion collection device, comprising: an ion collection chamber, an ion collection sensing electrode, and an ion polarization electrode. The ion polarization electrode surrounds the inner wall of the ion collection chamber, and the ion collection sensing electrode is disposed in the center of the ion collection chamber with an increased windward surface for ion collection. This invention solves the problem of low collection efficiency in existing ion collection devices.

Description

Technical Field

[0001] This invention relates to the field of ion collection technology, and more specifically to a high-efficiency ion collection device. Background Technology

[0002] Air ion research and applications are widespread, with ion collectors commonly used in air ion measuring instruments. Because air ions carry extremely small charges, measuring them typically requires an ion collector. An ion collector is a device that draws air in using a pump while simultaneously employing an electric field to collect ions from the sampled gas, thus creating an ion current. Currently, the most commonly used ion collector is the parallel plate type.

[0003] There are two existing technologies for ion collection devices: coaxial double-cylinder and parallel plate types. (See reference...) Figure 5 The principle behind these methods is electric field compression. However, due to the influence of ion characteristics and electrode aging, ions with weaker electric field forces may exceed the collection range of the collecting electrode, leading to incomplete collection and low collection rates. (Reference...) Figure 6 The parallel plate ion collection chamber has a flat plate as the central collecting electrode. The collection effect is similar to that of the coaxial double cylindrical type, but the collection is incomplete and the efficiency is low. Summary of the Invention

[0004] Therefore, the present invention provides a high-efficiency ion collection device to solve the problem of low collection efficiency in existing ion collection devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention discloses a high-efficiency ion collection device, which includes an ion collection chamber, an ion collection sensing electrode, and an ion polarization electrode. The ion polarization electrode surrounds the inner wall of the ion collection chamber, and the ion collection sensing electrode is located in the center of the ion collection chamber. The ion collection sensing electrode has an increased windward surface to collect ions.

[0007] Furthermore, the ion collection sensing electrode includes a collection rod and a collection cap.

[0008] Furthermore, one end of the collecting rod is fixedly connected to the end of the ion collecting chamber, and the other end is connected to the collecting cap, which is located at the windward end.

[0009] Furthermore, the collection cap is umbrella-shaped with the umbrella surface facing the windward end. In the ion collection chamber, air flows through the airflow channel, and ions collide with the collection cap to collect ions.

[0010] Furthermore, the collection cap is umbrella-shaped to increase the collection area, causing the airflow to change direction, allowing more ions to collide with the collection cap and be collected.

[0011] Furthermore, the collection cap is T-shaped, and the cross-section of the T-shaped collection cap increases the frontal area, allowing more ions to collide with the collection cap and thus collect the ions.

[0012] Furthermore, the ion polarization electrode is arranged around the inner wall of the ion collection chamber. When air flows into the ion collection chamber, under the action of the ion polarization electrode, the ions in the air are brought closer to the ion collection sensing electrode by the electric field force.

[0013] The present invention has the following advantages:

[0014] This invention discloses a high-efficiency ion collection device. Ions are collected by setting ion collection sensing electrodes inside the ion collection chamber. The sensing electrodes of the ion collection chamber are enlarged at the windward end to form a larger collection area. Ions are affected by the electrodes and airflow and will collide with the sensing electrodes. There is a significant airflow turning angle at the sensing point to achieve higher collection efficiency. Attached Figure Description

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0017] Figure 1 This is a schematic diagram of a high-efficiency ion collection device provided in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the ion collection state of a high-efficiency ion collection device provided in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of a high-efficiency ion collection device according to another embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the ion collection state of a high-efficiency ion collection device provided in another embodiment of the present invention;

[0021] Figure 5This is a schematic diagram of the structure of an ion collection device in the prior art provided in the embodiments of the present invention;

[0022] Figure 6 This is a schematic diagram of the ion collection state of an ion collection device in the prior art provided in the embodiments of the present invention;

[0023] In the diagram: 1-Ion collection chamber, 2-Ion collection sensing electrode, 3-Ion polarization electrode, 4-Collection cap, 5-Collection rod, 6-Air flow channel Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example

[0026] This embodiment discloses a high-efficiency ion collection device, which includes: an ion collection chamber 1, an ion collection sensing electrode 2, and an ion polarization electrode 3. The ion polarization electrode 3 surrounds the inner wall of the ion collection chamber 1, and the ion collection sensing electrode 2 is located in the center of the ion collection chamber 1. The ion collection sensing electrode 2 has an increased windward surface to collect ions. With the ion polarization electrode 3 surrounding the inner wall of the ion collection chamber 1, air flows into the ion collection chamber 1, and under the action of the ion polarization electrode 3, the ions in the air are drawn towards the ion collection sensing electrode 2 by an electric field.

[0027] The ion collection sensing electrode 2 includes a collecting rod 5 and a collecting cap 4. In this embodiment, the collecting rod 5 is horizontal in the ion collection chamber 1. The collecting cap 4 of the ion collection sensing electrode 2 in existing ion collection devices is usually cylindrical or parallel plate-shaped. Ions with weak electric field force are already beyond the collection range of the collecting electrode, resulting in incomplete collection and very low collection efficiency.

[0028] In this embodiment, one end of the collecting rod 5 is fixedly connected to the end of the ion collecting chamber 1, and the other end is connected to the collecting cap 4, which is located at the windward end. Figure 1 and Figure 2The collecting cap 4 is umbrella-shaped, with the umbrella surface facing the windward end. The collecting cap can also be flat, without affecting the actual effect; however, this invention uses an umbrella shape to ensure better and unobstructed airflow. Inside the ion collection chamber 1, air flows through the airflow channel 6, and ions collide with the collecting cap 4 for ion collection. Because the umbrella-shaped collecting cap 4 has a large unfolded area, when air flows in, it causes the airflow to change direction, allowing more ions to collide with the collecting cap 4 under the influence of the electric field, thus improving the collection efficiency.

[0029] In another embodiment, reference Figure 3 and Figure 4 This makes the collecting cap 4 T-shaped, increasing the cross-sectional area of ​​the collecting cap 4, allowing more ions to collide with the collecting cap 4, thus collecting ions and improving the collection efficiency.

[0030] This embodiment discloses a high-efficiency ion collection device, which collects ions by setting an ion collection sensing electrode 2 inside the ion collection chamber. The sensing electrode of the ion collection chamber 1 is enlarged at the windward end to form a larger collection area. The ions are affected by the electrode and the air flow, and will collide with the sensing electrode. There is a significant airflow turning angle at the sensing point to achieve higher collection efficiency.

[0031] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A high-efficiency ion collection device, characterized in that, The device includes: an ion collection chamber, an ion collection sensing electrode, and an ion polarization electrode. The ion polarization electrode surrounds the inner wall of the ion collection chamber, and the ion collection sensing electrode is located in the center of the ion collection chamber. The ion collection sensing electrode has an increased windward surface to collect ions. The ion collection sensing electrode includes a collection rod and a collection cap; The collection cap is umbrella-shaped or T-shaped; When the collection cap is T-shaped, the cross-section of the T-shaped collection cap increases the frontal area, allowing more ions to collide with the collection cap and thus collect the ions. The ion polarization electrode is arranged around the inner wall of the ion collection chamber. When air flows into the ion collection chamber, under the action of the ion polarization electrode, the ions in the air are moved closer to the ion collection sensing electrode by the electric field force. One end of the collecting rod is fixedly connected to the end of the ion collecting chamber, and the other end is connected to the collecting cap, which is located at the windward end. When the collection cap is umbrella-shaped, the umbrella surface faces the windward end. In the ion collection chamber, air flows through the airflow channel, and ions collide with the collection cap to collect ions. The collection cap is umbrella-shaped to increase the collection area, which causes the airflow to change direction, allowing more ions to collide with the collection cap and be collected.

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