Portable gas supply device for mass spectrometer and mass spectrometer analysis system
By designing a lightweight gas supply device and dust collection pipe system for the mass spectrometer, the problems of laborious gas tank replacement and dust entry were solved, achieving convenient gas tank replacement and dust isolation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-07
AI Technical Summary
Replacing the mass spectrometer gas tank is laborious, and dust can easily enter the system during the replacement process, affecting equipment operation.
A lightweight gas supply device for a mass spectrometer was designed, including a storage tank, a connecting plate, and an assisting component, which uses a spring to assist the movement of the gas tank; and is equipped with a dust collection pipe and a gas extraction pipe system to prevent dust from entering the main unit.
It achieves convenient gas cylinder replacement and effective dust isolation, reducing operational difficulty and equipment contamination risks.
Smart Images
Figure CN224096686U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laboratory equipment technology, and in particular to a portable gas supply device for a mass spectrometer and a mass spectrometer analysis system. Background Technology
[0002] Inductively coupled plasma mass spectrometry (ICP-MS) is a highly sensitive analytical technique primarily used to determine trace elements and isotope ratios. It consists of a plasma generator, nebulizer, torch, quadrupole mass spectrometer, and a fast-channel electron multiplier tube (called the ion detector or collector). The working principle of ICP-MS is as follows: a solution sample is nebulized into a plasma source, vaporized at high temperature, and dissociated into ionized gas. These ions pass through a sampling cone into a low-vacuum environment to form a molecular beam, which is then separated by mass separation in the quadrupole mass spectrometer before finally reaching the ion detector.
[0003] When the mass spectrometer is running, helium is used as the carrier gas and is usually supplied by gas cylinders. The gas cylinders are generally placed in a storage tank, and the bottom plate of the storage tank is at a certain height relative to the ground. When changing the gas cylinder, it is necessary to lift the gas cylinder to the upper surface of the bottom plate, which is laborious. Summary of the Invention
[0004] In view of this, and to address the above-mentioned shortcomings, it is necessary to propose a lightweight gas supply device for mass spectrometers.
[0005] It is also necessary to propose a mass spectrometer analysis system.
[0006] A portable gas supply device for a mass spectrometer includes a storage tank cabinet. The storage tank cabinet includes a base plate, a connecting plate, and a first spring. One side of the connecting plate is hinged to the base plate, one end of the first spring is connected to the base plate, and the other end of the first spring is connected to the connecting plate.
[0007] Preferably, the portable gas supply device for the mass spectrometer includes a gas cylinder, which is connected to the mass spectrometer.
[0008] Preferably, the portable gas supply device for the mass spectrometer includes a shut-off valve and a check valve. There are two gas cylinders, which are connected in parallel with the mass spectrometer. The outlet of any gas cylinder is connected in series with a check valve and a shut-off valve.
[0009] A mass spectrometer analysis system includes a dust blocking device and a portable gas supply device for the mass spectrometer. The dust blocking device includes a mass spectrometer and a dust collection tube. The mass spectrometer includes a main unit, an exhaust pipe, and a suction pipe. The main unit has a horizontal outer top surface with an exhaust port. The exhaust pipe is vertically placed, with its lower end connected to the exhaust port and its upper end suspended. The dust collection tube is vertically placed on the outer top surface of the main unit and encapsulated within the exhaust pipe. The side wall of the dust collection tube has a connecting interface. One end of the suction pipe is connected to the connecting interface, and the other end of the dust collection tube is connected to an exhaust fan.
[0010] Preferably, the dust collection pipe can be extended or shortened in the vertical direction.
[0011] Preferably, the dust collection pipe includes an upper pipe and a lower pipe, the lower pipe being nested within the upper pipe, and the interface being located on the lower pipe.
[0012] Preferably, the horizontal height of the interface is lower than the horizontal height of the upper end face of the exhaust pipe.
[0013] Preferably, the inner upper end face of the upper tube is tapered.
[0014] Preferably, the inner upper end face of the upper tube is a smooth surface.
[0015] Preferably, the air extraction pipe is a corrugated pipe.
[0016] Beneficial effects: The hinged side of the overlapping plate relative to the base plate can rotate relative to the base plate. When the overlapping plate is placed vertically, it is folded into the tank cabinet. When the overlapping plate is placed horizontally, it forms an inclined slide between the upper surface of the base plate and the ground, which serves as a guide for loading the gas cylinder into the base plate. When the overlapping plate is placed horizontally, the first spring is in a stored state and can be manually leveled by the staff. The staff can step on the overlapping plate to transfer the gas cylinder onto the overlapping plate. With the stored energy of the first spring, the overlapping plate flips, helping the staff to move the gas cylinder from the ground to the upper surface of the base plate and load the gas cylinder into the tank cabinet. The overlapping plate can also help to compress the gas cylinder and fix it relative to the tank cabinet. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the first embodiment of the portable gas supply device for the mass spectrometer.
[0018] Figure 2 This is a schematic diagram of the second embodiment of the portable gas supply device for the mass spectrometer.
[0019] Figure 3 This is a schematic diagram of the structure of the assist component.
[0020] Figure 4 This is a schematic diagram of the dust barrier device.
[0021] In the diagram: barrier device 10, mass spectrometer 11, main unit 111, exhaust pipe 112, extraction pipe 113, heat dissipation hole 114, dust collection pipe 12, interface 121, upper pipe 122, lower pipe 123, gas supply device 20, gas tank 21, shut-off valve 22, one-way valve 23, storage tank 24, base plate 241, overlapping plate 242, first spring 243, assist component 244, sliding plate 2441, connecting rod 2442, slider 2443, second spring 2444. Detailed Implementation
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] See Figure 1 This utility model provides a lightweight gas supply device 20 for a mass spectrometer, including a storage tank 24. The storage tank 24 includes a base plate 241, a connecting plate 242, and a first spring 243. One side of the connecting plate 242 is hinged to the base plate 241, one end of the first spring 243 is connected to the base plate 241, and the other end of the first spring 243 is connected to the connecting plate 242.
[0024] Beneficial effects: The hinged side of the overlapping plate 242 relative to the base plate 241 can rotate relative to the base plate 241. When the overlapping plate 242 is placed vertically, it is folded into the storage tank 24. When the overlapping plate 242 is placed horizontally, a sloping slide is formed between the upper surface of the base plate 241 and the ground, which serves as a guide for the gas cylinder 21 to be installed on the base plate 241. When the overlapping plate 242 is placed horizontally, the first spring 243 is in an energy storage state and can be manually leveled by the staff. The staff can step on the overlapping plate 242 to transfer the gas cylinder 21 onto the overlapping plate 242. With the help of the energy stored in the first spring 243, the overlapping plate 242 flips, helping the staff to move the gas cylinder 21 from the ground to the upper surface of the base plate 241 and install the gas cylinder 21 into the storage tank 24. The overlapping plate 242 can also help to press the gas cylinder 21 and fix the gas cylinder 21 relative to the storage tank 24.
[0025] See Figure 2 and Figure 3In one embodiment, the storage tank 24 includes a base plate 241 and an assistive assembly 244. The assistive assembly 244 includes a sliding plate 2441, a connecting rod 2442, a slider 2443, and a second spring 2444. The base plate 241 has two U-shaped grooves, and a sliding plate 2441 is installed in each groove. The sliding plate 2441 moves vertically up and down along the groove. A slider 2443 is installed on each sliding plate 2441 and moves horizontally along the sliding plate 2441. The center of the connecting rod 2442 is rotatably connected to the base plate 241. One end of the connecting rod 2442 is rotatably connected to one slider 2443, and the other end of the connecting rod 2442 is rotatably connected to another slider 2443. One end of the second spring 2444 is connected to the base plate 241, and the other end of the second spring 2444 is connected to the connecting rod 2442. Preferably, there are two assistive assemblies 244, which are located on both sides of the base plate 241. For example, the left slide 2441 is in a low position, the right slide 2441 is in a high position, the second spring 2444 is in an energy storage state, and the right slide 2441 is supported by a pad. The gas tank 21 is rolled onto the left slide 2441. The pad is removed, and the worker stands on the right slide 2441 and uses his body weight to lift the gas tank 21 and then roll it onto the upper surface of the base plate 241. If his own weight is insufficient, the energy stored in the second spring 2444 can help lift the gas tank 21.
[0026] See Figure 2 Furthermore, the portable gas supply device 20 for the mass spectrometer includes a gas tank 21, which is connected to the mass spectrometer 11.
[0027] See Figure 2 Furthermore, the portable gas supply device 20 for the mass spectrometer includes a shut-off valve 22, a check valve 23, and two gas tanks 21. The two gas tanks 21 are connected in parallel with the mass spectrometer 11, and a check valve 23 and a shut-off valve 22 are connected in series at the outlet of any gas tank 21.
[0028] The two gas cylinders 21 are used alternately to ensure a continuous gas supply to the mass spectrometer 11. The one-way valve 23 prevents gas from flowing from the fully pressurized gas cylinder 21 into the underpressurized gas cylinder 21.
[0029] See Figure 4This utility model provides a mass spectrometer analysis system, including a dust blocking device 10 and a portable gas supply device 20 for the mass spectrometer. The dust blocking device 10 includes a mass spectrometer 11 and a dust collection tube 12. The mass spectrometer 11 includes a main unit 111, an exhaust pipe 112, and an extraction pipe 113. The main unit 111 has a horizontal outer top surface with an exhaust port. The exhaust pipe 112 is placed vertically, with its lower end connected to the exhaust port and its upper end suspended. The dust collection tube 12 is placed vertically on the outer top surface of the main unit 111 and is encapsulated within it. The side wall of the dust collection tube 12 has a connection interface 121. One end of the extraction pipe 113 is connected to the connection interface 121, and the other end of the dust collection tube 12 is connected to an exhaust fan.
[0030] See Figure 4 Furthermore, the dust collection pipe 12 can be extended or shortened in the vertical direction.
[0031] For example, the dust collection pipe 12 can be a square pipe or a round pipe. The upper port of the dust collection pipe 12 is closed, and the lower port of the dust collection pipe 12 can be open or closed. This application does not impose any restrictions. The upper port of the exhaust pipe 112 is directly opposite the inner upper end face of the dust collection pipe 12. The dust collection pipe 12 is connected to the exhaust pipe 113 through the interface 121. It is preferable that the dust collection pipe 12 and the exhaust pipe are coaxial.
[0032] The barrier device 10 is specifically designed for the 7800ICP-MS mass spectrometer 11. Dust-laden gas inside the main unit 111 rises from the upper port of the exhaust pipe 112 and enters the inner cavity of the dust collection pipe 12. Some dust-laden gas enters the main unit 111 from the outside through the heat dissipation hole 114, which cools the main unit 111. Under the suction force of the exhaust fan, the dust descends, enters the exhaust pipe 113 through the interface 121, and is then discharged.
[0033] A dust collection pipe 12 is added. Dust accumulates on the inner wall of the dust collection pipe 12, while a small amount of dust enters the exhaust pipe 113. The exhaust pipe 113 is isolated from the exhaust pipe by the dust collection pipe 12, preventing dust from falling from the exhaust pipe 113 into the exhaust pipe and instead entering the main unit 111. The height of the dust collection pipe 12 is adjustable, ensuring that the rising height of dust within the inner cavity of the dust collection pipe 12 is lower than the upper inner surface of the dust collection pipe 12. This prevents dust from accumulating on the upper inner surface of the dust collection pipe 12 and falling into the exhaust pipe from the upper inner surface of the dust collection pipe 12.
[0034] See Figure 4 Furthermore, the dust collection pipe 12 includes an upper pipe 122 and a lower pipe 123, with the lower pipe 123 nested in the upper pipe 122, and the interface 121 located on the lower pipe 123.
[0035] For example, the upper tube 122 can also be nested within the lower tube 123. After the upper tube 122 and the lower tube 123 are extended or shortened, they are relatively fixed by a locking structure. For example, the locking structure specifically has a vertical row of through holes on the annular wall of the upper tube 122 and a vertical row of non-through holes on the annular wall of the lower tube 123. A pin passes through the through holes and is inserted into the non-through holes to fix the upper tube 122 and the lower tube 123 relatively.
[0036] See Figure 4 Furthermore, the horizontal height of the interface 121 is lower than the horizontal height of the upper end face of the exhaust pipe 112.
[0037] See Figure 4 Furthermore, the inner upper end face of the upper tube 122 is conical.
[0038] See Figure 4 Furthermore, the inner upper end face of the upper tube 122 is a smooth surface.
[0039] For example, with the cone apex of the inner upper end face of the upper pipe 122 facing upward, the water condensed on the inner upper end face of the upper pipe 122 will flow along the inner upper end face of the upper pipe 122 to the inner wall of the upper pipe 122, and will not fall into the exhaust pipe from the inner upper end face of the upper pipe 122.
[0040] See Figure 4 Furthermore, the exhaust pipe 113 is a corrugated pipe.
[0041] The modules or units in the device of this utility model embodiment can be merged, divided, or deleted according to actual needs.
[0042] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A portable gas supply device for a mass spectrometer, characterized in that: The system includes a storage tank cabinet, which includes a base plate, an overlap plate, and a first spring. One side of the overlap plate is hinged to the base plate, one end of the first spring is connected to the base plate, and the other end of the first spring is connected to the overlap plate.
2. The portable gas supply device for a mass spectrometer as described in claim 1, characterized in that: The portable gas supply device for the mass spectrometer includes a gas cylinder, which is connected to the mass spectrometer.
3. The portable gas supply device for mass spectrometer as described in claim 2, characterized in that: The portable gas supply device for the mass spectrometer includes a shut-off valve and a check valve. There are two gas cylinders, which are connected in parallel with the mass spectrometer. The outlet of any gas cylinder is connected in series with a check valve and a shut-off valve.
4. A mass spectrometer analysis system, characterized in that: The invention includes a dust blocking device and a portable gas supply device for a mass spectrometer as described in claim 2. The dust blocking device includes a mass spectrometer and a dust collection tube. The mass spectrometer includes a main unit, an exhaust pipe, and an extraction pipe. The main unit has a horizontal outer top surface with an exhaust port. The exhaust pipe is vertically placed, with its lower end connected to the exhaust port and its upper end suspended. The dust collection tube is vertically placed on the outer top surface of the main unit and encapsulated within it. The side wall of the dust collection tube has a connecting interface. One end of the extraction pipe is connected to the connecting interface, and the other end of the dust collection tube is connected to an exhaust fan.
5. The mass spectrometer analysis system as described in claim 4, characterized in that: The dust collection pipe can be extended or shortened in the vertical direction.
6. The mass spectrometer analysis system as described in claim 5, characterized in that: The dust collection pipe includes an upper pipe and a lower pipe, with the lower pipe nested inside the upper pipe, and the interface located on the lower pipe.
7. The mass spectrometer analysis system as described in claim 5, characterized in that: The horizontal height of the interface is lower than the horizontal height of the upper end face of the exhaust pipe.
8. The mass spectrometer analysis system as described in claim 6, characterized in that: The inner upper end face of the upper tube is tapered.
9. The mass spectrometer analysis system as described in claim 8, characterized in that: The inner upper end face of the upper tube is a smooth surface.