CN113686985A

CN113686985A - Mass spectrum detection device of gas chromatography composite tandem mass spectrometer

Info

Publication number: CN113686985A
Application number: CN202110939773.6A
Authority: CN
Inventors: 汪桂珍; 侯长辉; 皮松兵; 吴行; 曾德恩
Original assignee: Shenzhen Huakeda Testing Co ltd
Current assignee: Shenzhen Huakeda Testing Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2021-11-23
Anticipated expiration: 2041-08-17
Also published as: CN113686985B

Abstract

The invention discloses a mass spectrum detection device of a gas chromatography composite tandem mass spectrometer, which comprises a machine body, wherein the machine body is communicated with an air inlet pipe; the joint ports of the adjacent frame bodies are filled with sealing rings; the openings at the inclined lower ends of the three frame bodies are provided with filter screens, the filter screens are arranged in an inclined manner, and the inclined lower ends of the filter screens are provided with discharge ports; when the frame body is in an unstressed state, the sealing ring blocks the discharge port; when two sides of one frame body are extruded, the frame body deforms and forces the discharge port of the filter screen to be extruded out of the adjacent frame body, and the purified particles in the frame body are discharged out of the frame body under the action of self gravity; when the sealing ring is dislocated with the adjacent frame body, the gap between the adjacent frame bodies is communicated with the outside of the frame body. The invention has the effects of facilitating the replacement of the purification particles and reducing the waste of resources.

Description

Mass spectrum detection device of gas chromatography composite tandem mass spectrometer

Technical Field

The invention relates to the technical field of chromatographic detection devices, in particular to a mass spectrum detection device of a gas chromatography-tandem mass spectrometer.

Background

Gas chromatography is a chromatographic method using gas as a mobile phase (carrier gas), and separation is performed by utilizing a slight difference in the distribution coefficients of substances in two phases, and can be realized by a mass spectrometry detection device of a gas chromatography-tandem mass spectrometer.

In the correlation technique, the mass spectrum detection device comprises a machine body, the upper end of the machine body is communicated with a sample injector, one side of the machine body is communicated with an air inlet pipe, the air inlet pipe is communicated with an air source, a chromatographic column is arranged in the machine body, during detection, a sample enters from the sample injector, the air source introduces air into the machine body, the air is taken as carrier gas, the sample is carried by the carrier gas and enters the chromatographic column, and each component of the sample is separated in the chromatographic column so as to achieve the purposes of separation analysis and determination of some physical and chemical constants.

In summary, when any one of the dehydrating agent, the deoxidizing agent or the activated carbon purification particles needs to be replaced, the gas purification device needs to be detached, and the three purification particles need to be replaced together, so that the problems of inconvenient operation and resource waste exist, and therefore, the improvement space is still left.

Disclosure of Invention

In order to facilitate the replacement of purification particles and reduce the waste of resources, the invention provides a mass spectrum detection device of a gas chromatography-tandem mass spectrometer.

The invention provides a mass spectrum detection device of a gas chromatography composite tandem mass spectrometer, which adopts the following technical scheme:

a mass spectrum detection device of a gas chromatography-tandem mass spectrometer comprises a body, wherein the body is communicated with an air inlet pipe, one end, far away from the body, of the air inlet pipe is provided with a purification device, the air inlet end of the purification device is communicated with air source equipment, and the air outlet end of the purification device is communicated with the air inlet pipe; the purification device comprises three deformable frame bodies, wherein the frame bodies are used for storing different purification particles; the three frame bodies are distributed obliquely upwards from one end of the air inlet pipe to one end of the air source equipment and are sequentially communicated, and the joint ports of the adjacent frame bodies are filled with sealing rings; the openings at the inclined lower ends of the three frame bodies are provided with filter screens for receiving purified particles, the filter screens are arranged in an inclined manner, and the inclined lower ends of the filter screens are provided with discharge ports; when the frame body is in an unstressed state, the sealing ring blocks the discharge port; when two sides of one frame body are extruded, the frame body deforms and forces the discharge port of the filter screen to be extruded out of the adjacent frame body, and the purified particles in the frame body are discharged out of the frame body under the action of self gravity; when the sealing ring is dislocated with the adjacent frame body, the gap between the adjacent frame bodies is communicated with the outside of the frame body.

By adopting the technical scheme, when the purifying particles in any one of the frames need to be replaced, an operator can press the frames to deform the frames and force the filter screen to deform so that the discharge port of the filter screen protrudes out of the adjacent frame, the invalid purifying particles can be conveniently discharged, and the sealing rings between the adjacent frames are displaced by moving the sealing rings between the adjacent frames, so that the gap between the adjacent frames is forced to be communicated with the outside of the frames, the operator can conveniently place the purifying particles into the gap to complete the charging operation, the purifying particles can be conveniently replaced independently, and the resource waste is reduced; when the normal in-process of ventilating, the framework is in the unstressed state, and the sealing ring plays the effect of shutoff bin outlet this moment, avoids the granule in each framework to mix each other.

Preferably, an outer barrel is arranged on one side of the machine body, the frame body and the air inlet pipe are located inside the outer barrel, a discharging cavity is formed between the inner wall of the outer barrel and the outer wall of the frame body, and a through opening communicated with the discharging cavity is formed in the lower side of the outer barrel.

Through adopting above-mentioned technical scheme, follow the urceolus inner wall along the purification granule of discharging to the discharge chamber of discharging of frame internal discharge, be convenient for concentrate the emission to the purification granule that loses efficacy.

Preferably, the frame body includes four mutual articulated mounting panels, four the slope lower extreme of mounting panel respectively with filter screen edge fixed connection all around, the filter screen has elasticity.

Through adopting above-mentioned technical scheme for the deformation of framework has regularity, is favorable to improving the stability of framework, and the filter screen has elasticity, is convenient for order about the framework and resets.

Preferably, four hinged parts of the frame body are connected with driving rods, and the four driving rods radially penetrate through the outer cylinder.

By adopting the technical scheme, the driving rods on the left side and the right side of the frame body are used as the driving pieces, the frame body is convenient to drive to deform from the outer part of the outer barrel, and the driving rods on the upper side and the lower side of the frame body are used as the guide pieces, so that the stability of the frame body during deformation is improved.

Preferably, the outer peripheral surface of the outer cylinder is sleeved with two driving rings, and the two driving rings correspond to the two sealing rings one to one; the sealing ring is connected with a connecting strip, the connecting strip extends towards the cylinder wall of the outer cylinder, an arc-shaped through groove for the connecting strip to extend out is formed in the cylinder wall of the outer cylinder, and the connecting strip is fixed with the inner side of the driving ring; the arc through groove extends to the section of thick bamboo wall of urceolus in circumference.

The driving ring is rotated to the operator's accessible, and the sealing ring takes place to rotate under the drive of connecting strip, forces the clearance dislocation between sealing ring and the adjacent framework, and then makes framework upper end opening and the outer intercommunication of framework to form the passageway that supplies to purify the granule entering, the operator can stretch into in the urceolus and communicate with the gap with the help of appliances such as siphunculus, be convenient for with purifying in the granule discharges into the framework, accomplish the work of feeding, have easy operation's advantage.

Preferably, the filter screen is recessed toward the inside of the frame body.

Through adopting above-mentioned technical scheme to purification granule in the framework is toward both sides diffusion, and when both sides received the extrusion, the indent degree increase of filter screen is favorable to accelerateing the row's of purifying granule material speed.

Preferably, the connecting strip penetrates through the special-shaped through groove, and when the discharge port of the filter screen is extruded to the outside of the adjacent frame body, the discharge port is communicated with the special-shaped through groove.

Through adopting above-mentioned technical scheme, be favorable to reducing the influence that the connecting strip normally arranged the material to the purification granule.

Preferably, one end of the driving rod, which is far away from the frame body, is provided with a limiting block.

By adopting the technical scheme, the situation that the driving rod is separated from the outer barrel is avoided because the driving rod is prevented from being completely inserted into the outer barrel due to overlarge moving distance.

Drawings

Fig. 1 is a schematic overall structure diagram of a mass spectrometry detection apparatus of a gas chromatography-tandem mass spectrometer according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the inside of an outer cylinder of a mass spectrometry detection device of a gas chromatography-tandem mass spectrometer according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a mass spectrometry detection apparatus of a gas chromatography-tandem mass spectrometer according to an embodiment of the present invention, in which two sides of a frame are pressed.

Fig. 4 is a schematic structural diagram of a mass spectrometry detection apparatus of a gas chromatography-tandem mass spectrometer according to an embodiment of the present invention, when a frame and a seal ring are dislocated.

Description of reference numerals: 1. a body; 11. an air inlet pipe; 111. a port; 2. a gas source device; 3. an outer cylinder; 31. an arc-shaped through groove; 4. a frame body; 41. mounting a plate; 42. a drive rod; 43. a limiting block; 44. a filter screen; 441. a discharge outlet; 5. a seal ring; 51. a connecting strip; 511. a special-shaped through groove; 52. a drive ring; 6. a gap; 7. a discharge chamber; 8. a rubber plug; 9. a quick connector.

Detailed Description

The invention is described in further detail below with reference to figures 1-4.

The embodiment of the invention discloses a mass spectrum detection device of a gas chromatography-tandem mass spectrometer. Referring to fig. 1 and 2, a mass spectrometry detection device of a gas chromatography-tandem mass spectrometer comprises a body 1, wherein an air inlet pipe 11 is communicated with one side of the body 1, a purification device is installed at one end, away from the body 1, of the air inlet pipe 11, a quick-connection connector 9 is connected between the purification device and an air source device 2, and when the air source device 2 inputs air into the body 1, the air is firstly purified by the purification device to remove moisture, oxygen and hydrocarbon substances in the air.

Referring to fig. 1 and 2, an outer cylinder 3 is fixed on one side of the machine body 1, the purification device and the air inlet pipe 11 are both positioned inside the outer cylinder 3, the outer cylinder 3 is cylindrical, and the outer cylinder 3 extends upwards in an inclined manner in a direction away from the outer pipe. The purification device comprises three frames 4, two ends of each frame 4 are opened, and the three frames 4 are sequentially communicated along the inclination direction of the outer barrel 3. The frame 4 located above communicates with the quick connector 9, and the frame 4 located below communicates with the intake pipe 11. The inlet duct 11 opens in a square shape to match the shape of the frame 4. Gas can enter the machine body 1 through the channel formed by the three frames 4. A discharge cavity 7 is formed between the inner wall of the outer cylinder 3 and the outer wall of the frame 4. The end pipe orifice of the quick-plug connector 9 is square, so that the quick-plug connector 9 is butted with the edge of the upper end opening of the frame body 4. After the quick-plug connector 9 is installed, the outer cylinder 3 is in sealing butt joint with the quick-plug connector 9 to form a peripheral barrier of the frame body 4, and gas is prevented from leaking.

Referring to fig. 2 and 3, the filter screen 44 is fixed to the openings of the inclined lower ends of the three frames 4, and only gas passes through the filter screen 44. The dehydrating agent, the deoxidizing agent and the activated carbon particles are respectively stored in the three frames 4, and when the gas sequentially passes through the frames 4, the dehydrating agent, the deoxidizing agent and the activated carbon particles sequentially dehydrate, deoxidize and remove hydrocarbons from the gas flowing through the frames. For convenience of description, the deoxidizer, the dehydrating agent, and the activated carbon particles are hereinafter collectively referred to as purification particles.

Referring to fig. 2 and 3, a sealing ring 5 is arranged at a joint between adjacent frame bodies 4, the sealing ring 5 is square and surrounds along the opening edge of the frame body 4, and the sealing ring 5 is used for sealing a gap 6 between the adjacent frame bodies 4 to prevent gas from leaking out of the frame body 4.

Referring to fig. 2 and 3, the frame 4 includes four mounting plates 41 hinged to each other, and for each frame 4, four driving rods 42 are connected to the four hinged portions of the frame 4, and the four driving rods 42 radially penetrate through the outer cylinder 3. The four drive rods 42 are distributed in a cross. The end parts of the four driving rods 42 are all fixed with limit blocks 43. It should be emphasized that the filter 44 has elasticity, and when the filter 44 is in an unstressed state, the filter 44 is recessed toward the inside of the frame 4, so that the purification particles in the frame 4 are diffused toward both sides. The inclined lower end of the filter screen 44 is provided with a discharge opening 441. When the filter screen 44 is in an unstressed state, the sealing ring 5 seals the discharge opening 441, so as to prevent particles in each frame 4 from mixing with each other.

Referring to fig. 2 and 3, when the cleaning particles in one of the frames 4 need to be replaced, the operator first removes the quick-connect connector 9, and then presses the driving rods 42 on both sides of the corresponding frame 4 to deform the frame 4 and force the filter screen 44 to deform, so that the discharge port 441 of the filter screen 44 protrudes out of the adjacent frame 4, and the discharge port 441 communicates with the discharge chamber 7, so that the cleaning particles are discharged to the discharge chamber 7 under the self-gravity. Meanwhile, the concave degree of the filter screen 44 is increased, and the discharging speed of the purified particles is accelerated.

Referring to fig. 1 and 2, a through hole 111 communicating with the discharge chamber 7 is opened at the lower side of the outer cylinder 3 for discharging the ineffective cleaning particles out of the discharge chamber 7. The outer cylinder 3 is provided with a rubber stopper 8, and the rubber stopper 8 is used to open and close the through opening 111.

Referring to fig. 3 and 4, two drive rings 52 are rotatably sleeved on the outer peripheral surface of the outer cylinder 3, and the two drive rings 52 correspond to the two seal rings 5 one by one. Four angles of sealing ring 5 all are connected with connecting strip 51, and connecting strip 51 extends towards the section of thick bamboo wall direction of outer section of thick bamboo 3, and a plurality of arcs have been seted up to the section of thick bamboo wall of urceolus 3 and have been led to groove 31, and a plurality of arcs lead to groove 31 and a plurality of connecting strip 51 one-to-one. The connecting strips 51 radially penetrate through the corresponding arc-shaped through grooves 31 and are fixed with the inner side of the driving ring 52. The arc-shaped through groove 31 extends circumferentially to the wall of the outer cylinder 3.

Referring to fig. 3 and 4, when purification particles need to be added into one of the frames 4, the operator can detach the quick connector 9, and drive the ring 52 by rotating, and under the driving of the connecting strip 51, the sealing ring 5 rotates, so as to force the gap 6 between the sealing ring 5 and the adjacent frame 4 to be dislocated, and further to make the opening at the upper end of the frame 4 communicate with the outside of the frame 4, thereby forming a channel for the purification particles to enter, the operator can extend into the outer barrel 3 by means of a through pipe and other tools and communicate with the gap 6, and is convenient to discharge the purification particles into the frame 4, thereby loading work is performed, the operation is simple, the operator can conveniently complete the independent replacement of any purification particles, and simultaneously, the resource waste is reduced.

Referring to fig. 3 and 4, in addition, among the four connecting bars 51 connected to the same sealing ring 5, the connecting bar 51 on the lower side penetrates through the special-shaped through groove 511 along the thickness direction thereof, and when the limiting blocks 43 of the driving rods 42 on both sides of the frame 4 are abutted to the outer wall of the outer cylinder 3, the discharge port 441 of the filter screen 44 is communicated with the special-shaped through groove 511, so as to reduce the influence of the connecting bar 51 on the normal discharge of the purified particles.

The implementation principle of the mass spectrum detection device of the gas chromatography-tandem mass spectrometer provided by the embodiment of the invention is as follows:

when the operator changes one of them purification granule, the operator pulls down quick connector 9 earlier, then through pressing the actuating lever 42 of corresponding framework 4 both sides, make framework 4 warp, force filter screen 44 to warp simultaneously, make the bin outlet 441 of filter screen 44 bulge outside adjacent framework 4, when the stopper 43 of the actuating lever 42 of framework 4 both sides all with the outer wall butt of urceolus 3, the bin outlet 441 and the dysmorphism of filter screen 44 lead to groove 511 and communicate, and bin outlet 441 and row material chamber 7 intercommunication, the purification granule discharges to row material chamber 7 department under self gravity, and discharge outside the urceolus 3 from opening 111.

Then rotate the corresponding driving ring 52 of framework 4 to under the drive of connecting strip 51, sealing ring 5 takes place to rotate, thereby force the clearance 6 dislocation between sealing ring 5 and the adjacent framework 4, and then make framework 4 upper end opening and the outer intercommunication of framework 4, the operator stretches into the urceolus 3 and communicates with clearance 6 with the help of appliances such as siphunculus, thereby accomplish the work of feeding, easy operation, the operator of being convenient for accomplishes the independent change of arbitrary purification granule, reduce the wasting of resources simultaneously.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a mass spectrum detection device of gas chromatography composite tandem mass spectrometer which characterized in that: the air purifier comprises a machine body (1), wherein the machine body (1) is communicated with an air inlet pipe (11), one end, far away from the machine body (1), of the air inlet pipe (11) is provided with a purifying device, the air inlet end of the purifying device is communicated with an air source device (2), and the air outlet end of the purifying device is communicated with the air inlet pipe (11); the purification device comprises three deformable frames (4), wherein the frames (4) are used for storing different purification particles; the three frame bodies (4) are distributed from one end of the air inlet pipe (11) to one end of the air source equipment (2) in an inclined and upward manner and are sequentially communicated, and the joint ports of the adjacent frame bodies (4) are filled with sealing rings (5); the openings at the inclined lower ends of the three frame bodies (4) are provided with filter screens (44) for receiving purified particles, the filter screens (44) are arranged in an inclined manner, and the inclined lower ends of the filter screens (44) are provided with discharge openings (441); when the frame body (4) is in an unstressed state, the sealing ring (5) blocks the discharge opening (441); when two sides of one frame body (4) are extruded, the frame body (4) deforms, a discharge port (441) of the filter screen (44) is forced to be extruded out of the adjacent frame body (4), and the purified particles in the frame body (4) are discharged out of the frame body (4) under the action of self gravity; when the sealing ring (5) is dislocated with the adjacent frame body (4), the gap (6) between the adjacent frame bodies (4) is communicated with the outside of the frame body (4).

2. The mass spectrometric detection device of gas chromatography-tandem mass spectrometer of claim 1, characterized in that: organism (1) one side is provided with urceolus (3), and is three inside framework (4) and intake pipe (11) all were located urceolus (3), form material discharging cavity (7) between urceolus (3) inner wall and framework (4) outer wall, opening (111) with material discharging cavity (7) intercommunication are seted up to urceolus (3) downside.

3. The mass spectrometric detection device of gas chromatography-tandem mass spectrometer of claim 2, characterized in that: frame (4) include four mutual articulated mounting panel (41), four the slope lower extreme of mounting panel (41) respectively with filter screen (44) all around edge fixed connection, filter screen (44) have elasticity.

4. The mass spectrometry detection device of the gas chromatography-tandem mass spectrometer of claim 3, wherein: four hinged parts of the frame body (4) are connected with driving rods (42), and the four driving rods (42) radially penetrate through the outer cylinder (3).

5. The mass spectrometry detection device of the gas chromatography-tandem mass spectrometer of claim 4, wherein: the outer peripheral surface of the outer barrel (3) is sleeved with two driving rings (52), and the two driving rings (52) correspond to the two sealing rings (5) one by one; the sealing ring (5) is connected with a connecting strip (51), the connecting strip (51) extends towards the cylinder wall direction of the outer cylinder (3), the cylinder wall of the outer cylinder (3) is provided with an arc through groove (31) for the connecting strip (51) to extend out, and the connecting strip (51) is fixed with the inner side of the driving ring (52); the arc-shaped through groove (31) extends to the wall of the outer cylinder (3) in the circumferential direction.

6. The mass spectrometric detection device of gas chromatography-tandem mass spectrometer of claim 1, characterized in that: the filter screen (44) is sunken towards the inside of the frame body (4).

7. The mass spectrometry detection device of the gas chromatography-tandem mass spectrometer of claim 5, wherein: the connecting strip (51) penetrates through the special-shaped through groove (511), and when the discharge port (441) of the filter screen (44) is extruded to the outside of the adjacent frame body (4), the discharge port (441) is communicated with the special-shaped through groove (511).

8. The mass spectrometry detection device of the gas chromatography-tandem mass spectrometer of claim 4, wherein: and a limiting block (43) is arranged at one end of the driving rod (42) far away from the frame body (4).