CN214097299U

CN214097299U - Gas chromatography-mass spectrometer

Info

Publication number: CN214097299U
Application number: CN202023339578.XU
Authority: CN
Inventors: 沈声耀; 吴开峰
Original assignee: Jiaxing Gufeng Technology Co ltd
Current assignee: Jiaxing Gufeng Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-31
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a gas chromatograph-mass spectrometer belongs to gas chromatograph-mass spectrometer technical field. The gas chromatograph-mass spectrometer comprises a portable gas chromatograph-mass spectrometer body and a sampling probe, wherein an intermittent tube is arranged on one side of the sampling probe, a fan is fixed on the inner side of the intermittent tube, an inlet is arranged at the head end of the intermittent tube, a first outlet and a second outlet are respectively arranged on one side of the inlet close to the fan and at the tail end of the intermittent tube, and the first outlet and the second outlet are communicated through a storage cavity; the bottom of portable gas chromatograph-mass spectrometer body is fixed with fixed frame, and the inside of fixed frame is provided with the collecting plate, and one side of collecting plate is fixed with anodal magnet piece, the inside of collecting plate is provided with multiunit standing groove and power. The utility model discloses a sampling probe and intermittent type pipe are convenient for carry out the gaseous detection in the appointed scope, and detect through the gas of being convenient for in fixed frame and the standing groove to place the container, utilize placing and taking out of the collecting plate of being convenient for of positive pole magnet piece and negative pole magnet piece.

Description

Gas chromatography-mass spectrometer

Technical Field

The utility model belongs to the technical field of gas chromatography-mass spectrometer, a gas chromatography-mass spectrometer is related to.

Background

The gas chromatograph-mass spectrometer is an instrument combining a gas chromatograph and a mass spectrometer, the mass spectrometer can perform effective qualitative analysis, the chromatography is an effective separation and analysis method for organic compounds, and is particularly suitable for quantitative analysis of the organic compounds, and the effective combination of the gas chromatograph-mass spectrometer and the mass spectrometer provides a high-efficiency qualitative and quantitative analysis tool for complex organic compounds for chemists and biochemists.

In portable gas chromatograph-mass spectrometer's structure, the handheld heat tracing gas sampling probe of operator, gas can enter into gas chromatograph-mass spectrometer's detection range, but because the concentration and the composition of different position gas are different, the sampling probe is when detecting, if gas gets into together and can produce the mixture, influences the detection.

Moreover, when sampling and detecting the gas at different positions, a plurality of containers for storing the gas are needed for detection.

In the prior art, the above-mentioned detection methods are lacking in the structure of the gas chromatograph-mass spectrometer, and therefore, there is still a need for improvement of the gas chromatograph-mass spectrometer in the prior art.

Disclosure of Invention

The utility model aims at having above-mentioned problem to current technique, provided a gas chromatography-mass spectrometer, utilize the probe to carry out gaseous collection in order to solve current gas chromatography-mass spectrometer, gaseous can enter into the detection range of gas chromatography-mass spectrometer, but to the gaseous concentration of different positions and composition difference, it can produce the mixture to enter into together, influences the problem that detects.

The purpose of the utility model can be realized by the following technical proposal: a gas chromatograph-mass spectrometer comprises a portable gas chromatograph-mass spectrometer body and a sampling probe, wherein an intermittent pipe is arranged on one side of the sampling probe, a fan is fixed on the inner side of the intermittent pipe, an inlet is formed in the head end of the intermittent pipe, a first outlet and a second outlet are respectively formed in one side, close to the fan, of the inlet and the tail end of the intermittent pipe, the first outlet and the second outlet are communicated through a storage cavity, a first spring is arranged at the bottom of the first outlet, a first blocking block is arranged inside the first outlet and fixedly connected with the first blocking block, a second spring is arranged at the bottom of the second outlet, a second blocking block is arranged inside the second outlet and fixedly connected with the second blocking block; the bottom of portable gas chromatograph-mass spectrometer body is fixed with fixed frame, and the inside of fixed frame is provided with the collecting plate, one side of collecting plate is fixed with positive pole magnet piece, the inside of collecting plate is provided with multiunit standing groove and power.

Preferably, a negative magnet block attracted to the positive magnet block is fixed to the inner wall of the fixing frame.

Preferably, the diameter of the first outlet is greater than the diameter of the inlet.

Preferably, a gap is formed between the first outlet and the first block and a gap is formed between the second outlet and the second block.

Preferably, an installation cavity is formed between the first outlet and the storage cavity, and the fan is fixed in the installation cavity through screws.

Preferably, the outside of intermittent type pipe is fixed with fixed pipe, and the inner wall of fixed pipe is provided with the internal thread, the outside of sampling probe is provided with the external screw thread that mutually supports with the internal thread, and sampling probe threaded connection is on fixed pipe.

Preferably, the fixing frame is fixed at the bottom of the portable gas chromatograph-mass spectrometer body through bolts and nuts.

Preferably, one end of the first spring is welded at the bottom of the first outlet, the other end of the first spring is welded at the first block, and the initial state of the first spring pulls the first block to seal the first outlet.

Preferably, one end of the second spring is welded at the bottom of the second outlet, the other end of the second spring is welded at the second block, and the initial state of the second spring pulls the second block to seal the second outlet.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses a through the intermittent type pipe that sets up, the air current enters into the position of import through the suction of fan entrance point, then promotes first sprue, makes the first sprue stretch first spring, enters into the position of storing up the chamber, promotes the second sprue of intermittent type pipe end after the air current in the storing up the chamber is full, makes the second sprue stretch the second spring, and the air current reenters in the sampling probe, is convenient for carry out the gaseous detection in the appointed scope;

2. the utility model discloses a fix the fixed frame in portable gas chromatography/mass spectrometry body bottom, place the container of placing of collecting gas in the standing groove of collecting plate, the gas of being convenient for in placing the container detects.

3. The utility model discloses an utilize the inter attraction between positive pole magnet piece and the negative pole magnet piece, the placing and taking out of the collecting plate of being convenient for.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a middle intermittent tube according to the present invention;

fig. 3 is a schematic structural view of the middle collecting plate of the present invention.

In the figure: 1. a portable gas chromatograph-mass spectrometer body; 2. sampling a probe; 3. a fixing frame; 4. an intermittent tube; 5. a fan; 6. a fixed tube; 7. an inlet; 8. a first outlet; 9. a second outlet; 10. a first spring; 11. a first block; 12. a second spring; 13. a second block; 14. a reservoir; 15. a mounting cavity; 16. a collection plate; 17. a positive pole magnet block; 18. a negative magnet block; 19. a placement groove; 20. a power source.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

The blower mentioned in the present invention (model number AXIAL3003) can be ordered in the market or private, and belongs to the prior art.

As shown in fig. 1-3, a gas chromatograph-mass spectrometer comprises a portable gas chromatograph-mass spectrometer body 1 and a sampling probe 2, wherein an intermittent pipe 4 is arranged on one side of the sampling probe 2, a fan 5 is fixed on the inner side of the intermittent pipe 4, an inlet 7 is arranged at the head end of the intermittent pipe 4, a first outlet 8 and a second outlet 9 are respectively arranged on one side of the inlet 7 close to the fan 5 and the tail end of the intermittent pipe 4, the first outlet 8 is communicated with the second outlet 9 through a storage cavity 14, a first spring 10 is arranged at the bottom of the first outlet 8, a first blocking block 11 is arranged inside the first outlet 8, the first spring 10 is fixedly connected with the first blocking block 11, a second spring 12 is arranged at the bottom of the second outlet 9, a second blocking 13 is arranged inside the second outlet 9, and the second spring 12 is fixedly connected with the second blocking 13.

In the embodiment, through the arranged intermittent pipe 4, under the action of the fan 5, the airflow reaches the position of the inlet 7 of the inlet end, and then pushes the first block 11, so that the first block 11 stretches the first spring 10 to enter the position of the storage cavity 14; when the air flow in the storage cavity 14 is full, the second blocking block 13 is pushed, so that the second blocking block 13 stretches the second spring 12, the air flow enters the sampling probe 2, and the detection of the air in the specified range can be carried out.

Referring again to fig. 2, the diameter of the first outlet 8 is greater than the diameter of the inlet 7, a gap is formed between the first outlet 8 and the first block 11, and a gap is formed between the second outlet 9 and the second block 13, so that the air flow can flow into the gap. First export 8 and store up and form installation cavity 15 between the chamber 14, fan 5 passes through the fix with screw in installation cavity 15, can make the installation cavity 15 of intermittent type pipe 4 in the negative pressure under the effect of fan, utilizes external atmospheric pressure to open first sprue 11, does benefit to external gas and gets into.

Please refer to fig. 2, one end of the first spring 10 is welded at the bottom of the first outlet 8, the other end of the first spring 10 is welded at the first blocking block 11, and the initial state of the first spring 10 pulls the first blocking block 11 to seal the first outlet 8, the welding mode is favorable for the stable connection among the first blocking block 11, the first spring 10 and the first outlet 8, and the first spring 10 is in the stretching state, so that the first blocking block 11 can be blocked at the first outlet 8 by the stretching force of the first spring 10. One end of a second spring 12 is welded at the bottom of the second outlet 9, the other end of the second spring 12 is welded at a second block 13, the second block 13 is pulled by the initial state of the second spring 12 to seal the second outlet 9, the welding mode is favorable for stable connection among the second block 13, the second spring 12 and the second outlet 9, the second spring 12 is in a stretching state, and the second outlet 9 can be blocked by the second block 13 by utilizing the stretching force of the second spring 12.

Please refer to fig. 1 and 2, the outer side of the intermittent tube 4 is fixed with a fixed tube 6, the inner wall of the fixed tube 6 is provided with an internal thread, the outer side of the sampling probe 2 is provided with an external thread matched with the internal thread, and the sampling probe 2 is connected with the fixed tube 6 in a threaded manner. The outside of sampling probe 2 is provided with the external screw thread of mutually supporting with the internal thread, is convenient for install and dismantle intermittent type pipe 4.

This gas chromatograph-mass spectrometer, the bottom of portable gas chromatograph-mass spectrometer body 1 is fixed with fixed frame 3, and the inside of fixed frame 3 is provided with collecting plate 16, one side of collecting plate 16 is fixed with positive pole magnet piece 17, the inside of collecting plate 16 is provided with multiunit standing groove 19 and power 20.

In the present embodiment, the gas in the gas container is easily detected by the power supply 20 by fixing the fixing frame 3 to the bottom of the portable gas chromatograph/mass spectrometer main body 1 and placing the gas container in the placing groove 19 of the collecting plate 16.

Referring to fig. 1 and 3, a negative magnet block 18 is fixed to the inner wall of the fixing frame 3 to attract the positive magnet block 17, and the fixing frame 3 is fixed to the bottom of the portable gas chromatograph/mass spectrometer body 1 by bolts and nuts. The positive magnet block 17 and the mutually attracting negative magnet block 18 facilitate the fixing of the collecting plate 16, thereby facilitating taking out and placing.

The working principle is as follows: the intermittent pipe 4 and the sampling probe 2 are fixed in a threaded manner, airflow enters the position of the inlet 7 through the inlet end of the fan 5, the airflow pushes the first block 11 to enable the first block 11 to stretch the first spring 10, after a gap is formed between the first block 11 and the first outlet 8, the airflow enters the position of the storage cavity 15 from the gap, and when the airflow in the storage cavity 15 is full, the second block 13 is pushed to enable the second block 13 to stretch the second spring 12, so that the airflow enters the sampling probe 2 and detection in a specified range is performed; when the detection of the gas sample needs to be carried out outdoors, the collecting plate 16 is pulled out to the right, the containers are taken out, the gas collecting operation is carried out, then the gas in each container is respectively detected, and the mutual attraction between the positive magnet block 17 and the negative magnet block 18 is utilized, so that the placing and taking out of the collecting plate 16 are convenient.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the 1, portable GC body is used more here; 2. sampling a probe; 3. a fixing frame; 4. an intermittent tube; 5. a fan; 6. a fixed tube; 7. an inlet; 8. a first outlet; 9. a second outlet; 10. a first spring; 11. a first block; 12. a second spring; 13. a second block; 14. a reservoir; 15. a mounting cavity; 16. a collection plate; 17. a positive pole magnet block; 18. a negative magnet block; 19. a placement groove; 20. power, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a gas chromatograph-mass spectrometer, includes portable gas chromatograph-mass spectrometer body (1) and sampling probe (2), its characterized in that: an intermittent pipe (4) is arranged on one side of the sampling probe (2), a fan (5) is fixed on the inner side of the intermittent pipe (4), the head end of the intermittent pipe (4) is provided with an inlet (7), one side of the inlet (7) close to the fan (5) and the tail end of the intermittent pipe (4) are respectively provided with a first outlet (8) and a second outlet (9), and the first outlet (8) and the second outlet (9) are communicated with each other through a storage cavity (14), a first spring (10) is arranged at the bottom of the first outlet (8), a first block (11) is arranged in the first outlet (8), and the first spring (10) is fixedly connected with the first block (11), the bottom of the second outlet (9) is provided with a second spring (12), a second block (13) is arranged in the second outlet (9), and a second spring (12) is fixedly connected with the second block (13); the bottom of portable gas chromatograph-mass spectrometer body (1) is fixed with fixed frame (3), and the inside of fixed frame (3) is provided with collecting plate (16), one side of collecting plate (16) is fixed with positive pole magnet piece (17), the inside of collecting plate (16) is provided with multiunit standing groove (19) and power (20).

2. A gas chromatograph/mass spectrometer according to claim 1, characterized in that the inner wall of the fixed frame (3) is fixed with a negative magnet block (18) that is attracted to the positive magnet block (17).

3. A gas chromatograph-mass spectrometer according to claim 1, characterized in that the diameter of said first outlet (8) is greater than the diameter of said inlet (7).

4. A gas chromatograph according to claim 1, characterized in that a gap is formed between the first outlet (8) and the first block (11) and a gap is formed between the second outlet (9) and the second block (13).

5. A mass spectrometer according to claim 1, wherein a mounting chamber (15) is formed between the first outlet (8) and the storage chamber (14), and the fan (5) is fixed in the mounting chamber (15) by screws.

6. The gas chromatograph-mass spectrometer according to claim 1, wherein a fixed tube (6) is fixed on the outer side of the intermittent tube (4), an internal thread is arranged on the inner wall of the fixed tube (6), an external thread matched with the internal thread is arranged on the outer side of the sampling probe (2), and the sampling probe (2) is in threaded connection with the fixed tube (6).

7. The GC-MS of claim 1, wherein the fixing frame (3) is fixed to the bottom of the portable GC body (1) by bolts and nuts.

8. A gas chromatograph-mass spectrometer according to claim 1, characterized in that one end of the first spring (10) is welded to the bottom of the first outlet (8), the other end of the first spring (10) is welded to the first block (11), and the initial state of the first spring (10) pulls the first block (11) to close the first outlet (8).

9. A mass spectrometer according to claim 1, wherein one end of the second spring (12) is welded to the bottom of the second outlet (9), the other end of the second spring (12) is welded to the second block (13), and the initial state of the second spring (12) pulls the second block (13) to close the second outlet (9).