Mass spectrometer ion source ionization chamber airflow uniform guidance device

Abstract

This utility model discloses a uniform airflow guiding device for the ionization chamber of a mass spectrometer ion source, specifically relating to the field of airflow guiding technology. It includes a main pipe with inclined branch pipes fixedly connected to both sides of its outer wall. Each inclined branch pipe has multiple flow guiding components at one end, including: a small arc pipe fixedly connected to one end of the inclined branch pipe, with an inclined through pipe fixedly connected to one end of the small arc pipe; and a large arc pipe fixedly connected to one end of the inclined through pipe. This utility model uses multiple flow guiding components, allowing the airflow inside the main pipe to branch and flow along the two inclined branch pipes. The airflow is then diverted into the small arc pipe, guided via a circular arc path to the inclined through pipe, and finally discharged through the large arc pipe via an installation head. This achieves flow guiding operations at multiple nodes along the inclined and circular arc paths, ensuring uniform branching and outflow of the airflow from the ionization chamber of the mass spectrometer ion source.

Description

Technical Field

[0001] This utility model relates to the field of airflow guidance technology, and more specifically, to a device for uniformly guiding airflow in the ionization chamber of a mass spectrometer ion source. Background Technology

[0002] By uniformly distributing the airflow, ions can be guided into the mass analyzer along a stable path, avoiding ion loss caused by turbulence or dead zones. This significantly improves transport efficiency, especially for large molecules such as proteins, peptides, or low-concentration samples.

[0003] When the airflow in the ionization chamber of the ion source of a mass spectrometer flows, it needs to be transported by the main pipe, while other branches need to be diverted for dispersion. If the airflow is not smooth or there are bends during diversion, it is very easy to cause airflow fluctuations. At the same time, the fluctuation amplitude is large, making it difficult to achieve uniform guidance of the airflow in the branches. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides the following technical solution: a uniform airflow guiding device for the ionization chamber of a mass spectrometer ion source, comprising a main pipe, with inclined branch pipes fixedly connected to both sides of the outer wall of the main pipe, and a multi-section guide component provided at one end of each inclined branch pipe, the multi-section guide component comprising:

[0005] A small arc pipe is fixedly connected to one end of an inclined branch pipe, and an inclined through pipe is fixedly connected to one end of the small arc pipe.

[0006] A large arc tube is fixedly connected to one end of an oblique tube, and an installation head is fixedly connected to one end of the large arc tube.

[0007] In a preferred embodiment, the two oblique branch pipes are symmetrically arranged about the main pipe, and there is an angle between the oblique branch pipes and the main pipe.

[0008] In a preferred embodiment, the cross-sectional shape of both the small arc tube and the large arc tube is circular arc, and the length of the large arc tube is greater than the length of the small arc tube.

[0009] The inner walls of both the small and large arc tubes are smooth.

[0010] In a preferred embodiment, the two mounting heads are symmetrically arranged about the main pipe, the inner diameter of which is larger than the inner diameter of the inclined branch pipe.

[0011] In a preferred embodiment, one end of the main pipe is fitted with a communicating connector, and the other end of the main pipe is fitted with a communicating joint.

[0012] In a preferred embodiment, a sleeve block is fixed to the outer wall of the inclined tube, and support rings are fixedly installed on both sides of the sleeve block;

[0013] A connecting strip is fixed on one side of the sleeve block away from the support ring, and a support block is fixedly installed between the connecting strip and the main pipe.

[0014] In a preferred embodiment, the two support rings are symmetrically arranged about the sleeve block, and the two support blocks are symmetrically arranged about the main pipe.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model adopts a multi-section flow guide component. The two mounting heads are connected to the other two gas outlets of the ionization chamber of the mass spectrometer ion source. The airflow inside the main pipe is guided by the two inclined branch pipes at an angle. The airflow is then diverted into the small arc pipe through the inclined branch pipes. The airflow in the small arc pipe is guided into the inclined through pipe by the arc path. Finally, the airflow is discharged through the mounting head by the large arc pipe. The airflow can achieve a uniform inclined path and the flow guide operation of multiple nodes of the arc path ensures that the airflow branches out of the ionization chamber of the mass spectrometer ion source evenly.

[0017] 2. This utility model adopts a support block to support the connecting strip, the connecting strip to support the sleeve block, and two support rings to support the sleeve block. The two sleeve blocks can stably support the inclined pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the airflow uniform guidance device for the ionization chamber of the mass spectrometer ion source according to this utility model.

[0019] Figure 2 This is a schematic diagram of a partial section of the structure at the connection between the inclined branch pipe and the small arc pipe of this utility model.

[0020] Figure 3 This is a bottom view of the structure of the uniform airflow guiding device for the ionization chamber of the mass spectrometer ion source of this utility model.

[0021] Figure 4 This is a partial structural diagram of the connection between the main pipe and the support block of this utility model.

[0022] The attached diagram is labeled as follows: 1. Main pipe; 2. Inclined branch pipe; 3. Small arc pipe; 4. Inclined through pipe; 5. Large arc pipe; 6. Mounting head; 7. Butt joint; 8. Connecting head; 9. Sleeve block; 10. Support ring; 11. Connecting strip; 12. Support block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 - Figure 4 The diagram shows a uniform airflow guiding device for the ionization chamber of a mass spectrometer ion source. This device is equipped with multiple flow guide sections. The multiple flow guide sections enable the airflow to achieve a uniform inclined path and multiple nodes of the arc path, ensuring that the airflow branches out uniformly from the ionization chamber of the mass spectrometer ion source. The specific structural configuration of the multiple flow guide sections is as follows.

[0025] In this embodiment, as Figure 1 - Figure 2 As shown, both sides of the outer wall of the main pipe 1 are fixedly connected to inclined branch pipes 2. One end of each inclined branch pipe 2 is equipped with multiple flow guide sections, including: a small arc pipe 3, fixedly connected to one end of the inclined branch pipe 2, with an inclined through pipe 4 fixedly connected to one end of the small arc pipe 3; and a large arc pipe 5, fixedly connected to one end of the inclined through pipe 4, with an installation head 6 fixedly connected to one end of the large arc pipe 5. The two inclined branch pipes 2 are symmetrically arranged about the main pipe 1, with an included angle between them. The cross-sectional shape of both the small arc pipe 3 and the large arc pipe 5 is circular, with the length of the large arc pipe 5 being greater than the length of the small arc pipe 3. The inner walls of both the small arc pipe 3 and the large arc pipe 5 are smooth surfaces. The two installation heads 6 are symmetrically arranged about the main pipe 1, with the inner diameter of the main pipe 1 being greater than the inner diameter of the inclined branch pipe 2.

[0026] In this embodiment, as Figure 1 - Figure 3 As shown, one end of the main pipe 1 is equipped with a connecting connector 7, and the other end of the main pipe 1 is equipped with a connecting connector 8, so that the connector 8 can be connected to the delivery end of the ionization chamber of the mass spectrometer ion source, and the connector 7 can be connected to the gas outlet end of the ionization chamber of the mass spectrometer ion source. The gas flow is guided to the main pipe 1 through the connector 8, and then delivered to the connector 7 through the main pipe 1 to achieve flow guidance, thus achieving better flow separation effect.

[0027] When using this mass spectrometer ion source ionization chamber airflow uniform guiding device, the connector 8 is connected to the conveying end of the mass spectrometer ion source ionization chamber, the connector 7 is connected to the gas outlet end of the mass spectrometer ion source ionization chamber, and the two mounting heads 6 are connected to the other two gas outlet ends of the mass spectrometer ion source ionization chamber. In this way, the airflow inside the main pipe 1 is guided by the two inclined branch pipes 2 at an angle, and then flows into the small arc pipe 3. In the small arc pipe 3, the airflow is guided by the arc path into the inclined through pipe 4, and then smoothly guided into the large arc pipe 5. Through the large arc pipe 5, the airflow is discharged by the mounting heads 6. The airflow in the mass spectrometer ion source ionization chamber can uniformly achieve the guiding operation of the inclined path and multiple nodes of the arc path.

[0028] In this embodiment, as Figure 2 - Figure 4 As shown, a sleeve block 9 is fixed to the outer wall of the inclined pipe 4, and support rings 10 are fixedly installed on both sides of the sleeve block 9; a connecting strip 11 is fixed to one side of the sleeve block 9 away from the support ring 10, and a support block 12 is fixedly installed between the connecting strip 11 and the main pipe 1. The two support rings 10 are symmetrically arranged about the sleeve block 9, and the two support blocks 12 are symmetrically arranged about the main pipe 1.

[0029] When in use, the gas flow uniform guiding device of the ionization chamber of the mass spectrometer ion source is supported by the main pipe 1 supporting the support block 12, the support block 12 supporting the connecting strip 11, the connecting strip 11 supporting the sleeve block 9, and the sleeve block 9 can provide support force for the inclined tube 4. At the same time, the two support rings 10 support the sleeve block 9, and the lower surface of the sleeve block 9 is attached to the base. In this way, the two sleeve blocks 9 can stably support the inclined tube 4.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas flow uniform guiding device for the ionization chamber of a mass spectrometer ion source, comprising a main pipe (1), wherein inclined branch pipes (2) are fixedly connected to both sides of the outer wall of the main pipe (1), characterized in that: One end of the inclined branch pipe (2) is provided with multiple flow guides, the multiple flow guides including: The small arc pipe (3) is fixedly connected to one end of the inclined branch pipe (2), and the one end of the small arc pipe (3) is fixedly connected to the inclined through pipe (4). A large arc tube (5) is fixedly connected to one end of an oblique tube (4), and an installation head (6) is fixedly connected to one end of the large arc tube (5).

2. The mass spectrometer ion source ionization chamber airflow uniform guiding device according to claim 1, characterized in that: The two inclined branch pipes (2) are symmetrically arranged about the main pipe (1), and there is an angle between the inclined branch pipes (2) and the main pipe (1).

3. The mass spectrometer ion source ionization chamber airflow uniform guiding device according to claim 1, characterized in that: The cross-sectional shape of both the small arc tube (3) and the large arc tube (5) is circular arc, and the length of the large arc tube (5) is greater than the length of the small arc tube (3). The inner walls of both the small arc tube (3) and the large arc tube (5) are smooth.

4. The mass spectrometer ion source ionization chamber airflow uniform guiding device according to claim 1, characterized in that: The two mounting heads (6) are symmetrically arranged about the main pipe (1), and the inner diameter of the main pipe (1) is larger than the inner diameter of the inclined branch pipe (2).

5. The mass spectrometer ion source ionization chamber airflow uniform guiding device according to claim 1, characterized in that: One end of the main pipe (1) is equipped with a connecting connector (7), and the other end of the main pipe (1) is equipped with a connecting connector (8).

6. The mass spectrometer ion source ionization chamber airflow uniform guiding device according to claim 1, characterized in that: The outer wall of the oblique tube (4) is fixed with a sleeve block (9), and support rings (10) are fixedly installed on both sides of the sleeve block (9). A connecting strip (11) is fixed on one side of the sleeve (9) and away from the support ring (10), and a support block (12) is fixedly installed between the connecting strip (11) and the main pipe (1).

7. The mass spectrometer ion source ionization chamber airflow uniform guiding device according to claim 6, characterized in that: The two support rings (10) are symmetrically arranged about the sleeve block (9), and the two support blocks (12) are symmetrically arranged about the main tube (1).

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