CN115876696A - Spectral analysis device - Google Patents

Abstract

The invention provides a spectral analysis device, and relates to the technical field of spectral analysis devices. In the spectral analysis device, a spectrometer host and a radio frequency power supply assembly are arranged outside a glove box. The cooling module is embedded in the peripheral wall of the glove box; the cooling module is provided with a coil set which is wound on the torch tube. The optical channel module comprises an optical channel tube, a base, a lens assembly and a sampling cone assembly; the base is embedded in the peripheral wall of the glove box, the optical channel tube is inserted in the base and is positioned outside the glove box, and the optical channel tube is connected with the spectrometer host; the base is provided with a first assembling channel along the axial direction of the base; the lens assembly is movably assembled in the first assembling channel; the sampling cone assembly is inserted into one end, far away from the optical channel tube, of the first assembly channel and is arranged inside the glove box for lighting; light collected by the sampling cone assembly is guided into the spectrometer host through the lens assembly by the optical channel tube. The spectrum analysis device provided by the invention can solve the problem that the analyzer is inconvenient to maintain.

Description

Spectral analysis device

Technical Field

The invention relates to the technical field of spectrum analysis devices, in particular to a spectrum analysis device.

Background

At nuclear industry spent fuel aftertreatment stage, need carry out the analysis to the non-volatility element in the waste liquid with spectral analysis, and the waste liquid itself has gamma radioactivity, consequently need the glove box to realize radiation protection, avoid gamma aerosol excessive, guarantee staff's safety, and prior art generally all places whole analytical instrument in the glove box, because gamma ray influences the irradiation of electronics, not only greatly reduced instrument life, and it is very inconvenient to maintain, large-scale spare part can't get into the glove box through transfer passage, also increases nuclear waste.

Disclosure of Invention

The object of the present invention consists in providing a spectroscopic analysis device which is able to remedy the technical problem of the inconveniences of the maintenance of the analyzers of the prior art.

Embodiments of the invention may be implemented as follows:

an embodiment of the present invention provides a spectral analysis apparatus, including:

the glove box is internally provided with a torch chamber;

the sample introduction module is arranged in the glove box and is provided with a torch tube, and the torch tube extends into the torch chamber;

the spectrometer host is arranged outside the glove box;

the cooling module is embedded on the peripheral wall of the glove box; the cooling module is provided with a coil set, and the coil set extends into the glove box and is wound on the torch tube so as to generate plasma flame;

the radio frequency power supply assembly is arranged outside the glove box and is electrically connected with the coil assembly so as to provide power for the coil assembly; and (c) a second step of,

the optical channel module comprises an optical channel tube, a base, a lens assembly and a sampling cone assembly; the base is embedded in the peripheral wall of the glove box, the optical channel tube is inserted into the base and located outside the glove box, and the optical channel tube is connected with the spectrometer host; the base is provided with a first assembling channel along the axial direction of the base; the lens assembly is movably assembled on the first assembling channel; the sampling cone assembly is inserted into one end, far away from the optical channel tube, of the first assembly channel and is arranged inside the glove box for lighting; and light rays collected by the sampling cone assembly pass through the lens assembly and are guided into the spectrometer host by the optical channel tube.

Compared with the prior art, the spectrum analysis device provided by the invention has the beneficial effects that:

among this spectral analysis device, because spectrum appearance host computer and radio frequency power supply subassembly all set up the outside at the glove box, can conveniently directly maintain spectrum appearance host computer and radio frequency power supply subassembly. For the optical channel module, the optical channel tube is connected with the base in an inserting mode and can be directly pulled out of the base so as to finish the disassembly of the optical channel tube; then the sampling cone assembly is detached from the base through gloves on the glove box; after the optical channel tube and the sampling cone assembly are disassembled, the replaced lens assembly can be pushed into the first assembling channel so as to be ejected out of the first assembling channel through the replaced lens assembly, and then the replacement of the lens assembly is completed; in addition, in the replacement process, the first assembly channel is always sealed, and the threat to operators caused by the leakage of the radioactive materials in the first assembly channel can be prevented. Therefore, the spectral analysis device provided by the invention can solve the technical problem of inconvenient maintenance in the prior art, and can also improve the maintenance safety.

Optionally, the lens assembly includes a lens frame, a first lens, a first compression ring and a first seal ring;

the lens frame is movably arranged in the first assembling channel, and the first sealing ring is pressed between the lens frame and the outer wall of the first assembling channel; the lens frame is provided with a first channel and a second channel along the axial direction of the lens frame, and the inner diameter of the first channel is larger than that of the second channel;

the first lens is assembled in the first channel, and the first pressing ring is assembled in the first channel and is pressed on the first lens.

Optionally, a first air guide hole is formed in the lens frame along the radial direction of the lens frame, and the first air guide hole is communicated with the second channel; a second air guide hole is formed in the base along the radial direction of the base, and the second air guide hole is located in the glove box; the first air guide hole is correspondingly communicated with the second air guide hole, and the second air guide hole is used for guiding gas into the second channel.

Optionally, one side of the lens frame close to the sampling cone assembly abuts against the sampling cone assembly.

Optionally, the sampling cone assembly includes a cold cone sleeve, a cold cone opening, a second compression ring, a second lens, and a second sealing ring;

the cold taper sleeve is inserted into the first assembling channel, and the second sealing ring is pressed between the cold taper sleeve and the inner wall of the first assembling channel; a third channel and a fourth channel are arranged in the cold taper sleeve along the axial direction; the inner diameter of the third channel is larger than that of the fourth channel;

the cold cone opening is assembled in the fourth channel and extends into the glove box for lighting;

the second lens is assembled in the third channel; the second pressing ring is assembled in the third channel and pressed on the second lens.

Optionally, the outer periphery of the second lens along the radial direction thereof forms a groove with the inner wall of the third channel.

Optionally, a limiting structure is convexly arranged on the outer side of the cold taper sleeve; the limiting structure is abutted against the end face of the 5 base.

Optionally, a fifth channel is further formed in the base along the axial direction of the base, the fifth channel is arranged at one end of the first assembling channel close to the optical channel tube, and the fifth channel is communicated with the first assembling channel; the optical channel module further comprises a compression ring, and the compression ring is assembled on the fifth channel and is pressed on the lens assembly.

Optionally, a sixth channel is further formed in the base along the axial direction of the base, and the sixth channel is communicated with the fifth channel; a third air-guide hole is formed in the base, is communicated with the sixth channel and is positioned outside the glove box; the third gas guide hole is used for guiding out the gas in the sixth channel.

Optionally, the cooling module further comprises a fixed ring, an output ring and a cooling block; 5 the fixing ring is embedded in the peripheral wall of the glove box, and a shaft is arranged in the fixing ring along the fixing ring

A second fitting channel;

the output ring is inserted into the second assembling channel, and assembling holes are formed in the output ring;

the cooling block is inserted into the assembling hole, and the coil group penetrates through the cooling block and extends into the glove box.

Optionally, the rf power supply assembly has a high voltage coil extending into the cooling block to access the coil assembly, the high voltage coil being configured to deliver a cooling fluid to the coil assembly;

the cooling module further comprises a clamping sleeve screw and a third pressure ring; an assembly groove is formed in the cooling block, and the coil group penetrates through the bottom wall of the assembly groove to extend into the glove box; the third pressure ring is assembled in the assembling groove to seal the high-voltage coil; the clamping sleeve screw is assembled in the assembling groove to press and hold the third pressing ring.

Optionally, the cooling module further includes a third sealing ring, the third sealing ring is disposed on the outer periphery of the output ring and is pressed between the inner wall of the second assembling channel and the output ring.

Optionally, the cooling module further comprises a limiting member; the limiting piece is detachably assembled on the end face of the fixing ring and is positioned inside the glove box; the limiting piece at least partially extends into the second assembling channel to abut against the output ring, so that the end face of the output ring is flush with the end face of the fixing ring.

Optionally, the rf power supply assembly further comprises a shield disposed around the cooling module.

In addition, the clamping sleeve screw is detached under the condition that the cooling module needs to be replaced, then the coil assembly is detached, the replaced output ring can be directly ejected out by the replaced output ring, replacement of the output ring can be completed quickly and conveniently, meanwhile, the sealing performance of the second assembly channel in the replacement process can be guaranteed, the technical problem that an analyzer in the prior art is inconvenient to maintain can be solved, and meanwhile, the maintenance safety is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a spectral analysis apparatus provided in an embodiment of the present application from a first viewing angle;

FIG. 2 is a schematic diagram of a second perspective view of a spectral analysis apparatus provided in an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a portion of a spectroscopic analysis apparatus according to an embodiment of the present application;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

fig. 5 is a schematic cross-sectional structural diagram of another part of a spectrum analysis apparatus according to an embodiment of the present application.

Icon: 10-a spectroscopic analysis device; 100-glove box; 110-a torch chamber; 200-sample introduction module; 210-a torch tube; 300-spectrometer host; 400-a cooling module; 410-a fixed ring; 411-a clamping part; 412-a second assembly channel; 420-an output loop; 421-assembly hole; 430-a cooling block; 431-a fitting groove; 440-coil set; 450-a third seal ring; 460-a third pressure ring; 470-cutting sleeve screw; 480-a limiter; 500-a radio frequency power supply assembly; 510-a high voltage coil; 520-a shield; 600-an optical channel module; 610-an optical channel tube; 620-base; 621-a first assembly channel; 622-fifth channel; 623-a sixth channel; 624-second gas vent; 625-a holding portion; 626-a third gas-guide hole; 630-a lens assembly; 631-a first lens; 632-a lens frame; 6321-first channel; 6322-a second channel; 6323-first gas guide hole; 633-a first compression ring; 634-a first sealing ring; 640-a sampling cone assembly; 641-cold taper sleeve; 6411-a third channel; 6412-fourth channel; 642-cold cone mouth; 643 — a second pressure ring; 644 — a second lens; 645 — second seal ring; 650-clamp ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

The embodiment of the present application provides a spectroscopic analysis apparatus 10 that can analyze non-volatile elements in a waste liquid generated in the nuclear industry by using a spectroscopic analysis method.

The spectroscopic analysis device 10 of the present application is provided, among other things, to improve the technical problem of the prior art that the spectroscopic analysis device 10 is inconvenient to maintain.

Referring to fig. 1 and fig. 2, in the present embodiment, the spectral analysis apparatus 10 includes a glove box 100, a sample injection module 200, a spectrometer mainframe 300, a cooling module 400, a radio frequency power module 500, and an optical channel module 600. Among them, the glove box 100 has a plurality of gloves (not shown) on the circumferential wall thereof, and an operator can insert his/her hand into the gloves to operate the glove box 100, and the glove box 100 is filled with an aerosol having radioactivity, so that the glove box 100 has a strong sealing property to prevent the radioactive material inside the glove box 100 from leaking out. Further, a torch chamber 110 is provided in the glove box 100. The sample introduction module 200 is disposed inside the glove box 100, and has a torch tube 210, the torch tube 210 can introduce the atomized waste liquid into the plasma flame through a carrier gas, and the torch tube 210 is installed in the torch chamber 110. The spectrometer main unit 300 is disposed outside the glove box 100, and the spectrometer main unit 300 is used for analyzing the collected light to analyze the non-volatile elements in the waste liquid by a spectroscopic analysis method. The cooling module 400 is embedded in the peripheral wall of the glove box 100; the cooling module 400 has a coil assembly 440, and the coil assembly 440 extends into the glove box 100 and is wound around the torch tube 210 for generating a plasma flame. The rf power supply assembly 500 is disposed outside the glove box 100 and is electrically connected to the coil assembly 440 to supply power to the coil assembly 440. The optical channel module 600 comprises an optical channel tube 610, a base 620, a lens assembly 630 and a sampling cone assembly 640; the base 620 is embedded on the peripheral wall of the glove box 100, the optical channel tube 610 is inserted into the base 620 and located outside the glove box 100, and the optical channel tube 610 is connected with the spectrometer host 300; the base 620 is provided with a first fitting passage 621 along an axial direction thereof; the lens assembly 630 is movably assembled to the first assembling channel 621; the sampling cone assembly 640 is inserted into one end of the first assembling channel 621 far away from the optical channel tube 610, and is arranged inside the glove box 100 for lighting; light collected by sample cone assembly 640 is directed from optical channel tube 610 through lens assembly 630 to spectrometer mainframe 300.

It should be noted that the atomized waste liquid is carried into the torch tube 210 by the carrier gas, and is carried into the plasma flame at the top of the torch tube 210 under the guiding action of the torch tube 210, so that atoms in the waste liquid are excited into an unstable state, and photons are released in a transition manner to form a characteristic spectral line of an element. At this time, the sampling cone assembly 640 may be used to collect light, so that the characteristic spectrum is guided to the spectrometer mainframe 300 for analysis after passing through the sampling cone assembly 640, the lens assembly 630 and the optical channel tube 610.

As described above, in the spectral analysis device 10, since the spectrometer main unit 300 and the rf power supply module 500 are both disposed outside the glove box 100, the spectrometer main unit 300 and the rf power supply module 500 can be directly and easily maintained. For the optical channel module 600, since the optical channel tube 610 is connected to the base 620 in an insertion manner, it can be directly pulled out from the base 620 to complete the detachment of the optical channel tube 610; sample cone assembly 640 is then removed from base 620 via a glove on glove box 100; after removal of optical channel tube 610 and sample cone assembly 640, replacement lens assembly 630 may be pushed into first assembly channel 621 to eject replaced lens assembly 630 from first assembly channel 621 by way of replacement lens assembly 630, thereby completing the replacement of lens assembly 630; moreover, during the replacement process, the first assembling passage 621 is always kept sealed, so that the radioactive materials inside can be prevented from leaking out and causing a threat to operators. Therefore, the spectral analysis device 10 provided by the invention can improve the technical problem of inconvenient maintenance in the prior art and can also improve the maintenance safety.

Note that since the waste liquid in the glove box 100 has radioactivity, in order to prevent leakage of radioactive substances, a seal structure is provided between the base 620 and the peripheral wall of the glove box 100 to seal a gap between the base 620 and the peripheral wall of the glove box 100, thereby preventing leakage of radioactive substances. Optionally, in this embodiment, the outer periphery of the base 620 is convexly provided with a supporting portion 625, and the supporting portion 625 is annularly and convexly provided on the outer periphery of the base 620; when the base 620 is fitted to the peripheral wall of the glove box 100, the abutting portion 625 abuts against the outer wall of the glove box 100. The sealing structure is pressed between the abutting portion 625 and the outer wall of the glove box 100 to seal a gap formed between the abutting portion 625 and the glove box 100. Of course, in other embodiments, the base 620 may be sealed from the circumferential wall of the glove box 100 in other manners, for example, a seal structure may be provided on an inner wall of a hole in which the base 620 is fitted in the glove box 100, and the base 620 may be pressed against the seal structure to seal when the base 620 is fitted in the hole in the glove box 100.

In the present embodiment, referring to fig. 3 and fig. 4, the lens assembly 630 includes a lens frame 632, a first lens 631, a first pressing ring 633 and a first sealing ring 634. The lens frame 632 is movably disposed in the first assembling passage 621, and the first sealing ring 634 is pressed between the lens frame 632 and the outer wall of the first assembling passage 621; the lens frame 632 is provided with a first passage 6321 and a second passage 6322 along an axial direction thereof, the first passage 6321 having an inner diameter larger than that of the second passage 6322. The first mirror 631 is assembled in the first channel 6321, and the first pressing ring 633 is assembled in the first channel 6321 and pressed against the first mirror 631.

Through the arrangement of the first lens 631, not only can the light be ensured to pass through the optical channel module 600,5, but also the first lens 631 can seal the first assembly channel 621, so as to prevent radiation

The sexual substance leaks out of the first fitting passage 621. However, since the first lens 631 is a wearing part, based on which the lens frame 632 is movably assembled in the first assembling channel 621, in case that the first lens 631 needs to be replaced, a replacement lens assembly 630, i.e. a new lens assembly, can be used

Lens assembly 630 is pushed directly into first assembly channel 621 to eject replacement lens assembly 6300 out for replacement.

Of course, since the first sealing ring 634 is disposed between the lens frame 632 and the inner wall of the first assembling channel 621 to provide a sealing function by the first sealing ring 634, the sealing of the first assembling channel 621 during the replacement of the lens assembly 630 can be ensured, thereby preventing the radioactive material from leaking during the replacement and improving the safety of the operator.

5 it is worth noting that, before the new lens assembly 630 is pushed into the first assembling passage 621,

the assembly of the first pressing ring 633, the first lens 631 and the lens frame 632 needs to be completed first; and the first sealing ring 634 is required to be sleeved on the corresponding position of the lens frame 632 to ensure that the sealing can be realized when the new lens assembly 630 is pushed into the first assembling channel 621.

In addition, in the embodiment, since the arrangement 0 of the first channel 6321 and the second channel 6322 forms a step structure, the first lens 631 is pressed against the step structure; in order to improve the sealing property,

a sealing ring is provided between the first lens 631 and the stepped structure to prevent radioactive material from leaking between the first lens 631 and the lens frame 632.

In this embodiment, the lens frame 632 is provided with a first air guide hole 6323 along a radial direction thereof, and the first air guide hole 6323 is communicated with the second channel 6322; a second air vent 624 is formed in the base 620 along the radial direction of the base, and the second air vent 624 is positioned in the glove box 100; the first gas guide hole 6323 and the second gas guide hole 624 are correspondingly communicated, and the second gas guide hole 624 is used for introducing gas into the second passage 6322.

It should be noted that, through the cooperation of the second gas guide hole 624 and the first gas guide hole 6323, a rare gas, such as argon, may be introduced into the second passage 6322, so that the second passage 6322 is filled with argon, which facilitates the spectrometer host 300 to detect the ultraviolet characteristic spectrum. Of course, other rare gases may be introduced as the case may be.

In order to facilitate the introduction of the gas into the second channel 6322 through the first gas guide hole 6323 and the second gas guide hole 624, a gas guide tube (not shown) is further disposed in the glove box 100, and the gas guide tube is connected to the second gas guide hole 624 to introduce the gas into the second channel 6322. Further, to facilitate the fitting of the air duct with the second air guiding hole 624, the length of the air duct may be extended to 100mm. Of course, the length of the air duct can also be selected according to actual conditions.

Optionally, the side of the lens frame 632 near the sample cone assembly 640 abuts against the sample cone assembly 640. That is, the lens frame 632 may be provided with a positioning feature by the sample cone assembly 640 to ensure that the lens frame 632 is assembled into a desired position. It should be noted that the positioning provided by the sample cone assembly 640 to the lens frame 632 can also facilitate the cooperation of the first air guide holes 6323 and the second air guide holes 624, thereby improving the cooperation precision. Due to the repeated positioning of the lens assembly 630 by the sample cone assembly 640, the positioning accuracy of the lens assembly 630 can be as high as 0.1mm.

In this embodiment, the sampling cone assembly 640 includes a cold cone 641, a cold cone 642, a second pressure ring 643, a second optic 644, and a second sealing ring 645. The cold cone 641 is inserted into the first assembling channel 621, and when the lens assembly 630 needs to be replaced, the cold cone 641 can be directly pulled out from the first assembling channel 621, so that the replaced lens assembly 630 can be conveniently pushed out from the first assembling channel 621. The second sealing ring 645 is pressed between the cold cone 641 and the inner wall of the first mounting channel 621, so that the second sealing ring 645 can ensure the sealing performance between the cold cone 641 and the inner wall of the first mounting channel 621, and prevent the radioactive material from leaking. A third passage 6411 and a fourth passage 6412 are axially arranged in the cold taper sleeve 641; the third passage 6411 has an inner diameter larger than that of the fourth passage 6412. A cold cone 642 fits into the fourth passage 6412 and extends into the interior of the glove box 100 for daylighting. The second lens 644 fits into the third channel 6411; the second pressing ring 643 is fitted in the third passage 6411 and pressed against the second lens 644. In addition, the cold cone 642 is oriented perpendicular to the axial direction of the torch tube 210, that is, the axis of the cold cone 642 forms a 90 ° angle with the axis of the torch tube 210.

During lighting, light is introduced from the cold cone 642, and the light entering the cold cone cover 641 needs to sequentially pass through the second lens 644, enter the second channel 6322, then pass through the first lens 631, and then be introduced into the optical channel 610. That is to say, in the optical channel module 600, the optical channel module 600 is sealed by a double-lens manner, so that the sealing performance can be improved; and also prevents most of large particle aerosol inside the glove box 100 from affecting the first lens 631 through the second lens 644, thereby preventing the first lens 631 from being damaged by contamination, i.e., preventing frequent replacement of the lens assembly 630.

Due to the different inner diameters of the third and fourth passages 6411, 6412, a stepped structure is formed between the third and fourth passages 6411, 6412, and the second lens 644 is pressed and held by the second pressing ring 643.

Optionally, the second lens 644 forms a groove (not shown) with the inner wall of the third channel 6411 along its radial periphery. Since the second passage 6322 is communicated with the third passage 6411, the groove is provided to lead the rare gas in the second passage 6322 into the fourth passage 6412, so that the rare gas can be led into the cold cone 642. Therefore, the inner channel of the optical channel module 600 is filled with rare gas, and the ultraviolet characteristic spectrum can be effectively detected. Meanwhile, since the internal passage of the optical passage module 600 is filled with the rare gas, a positive pressure can be formed in the internal passage of the optical passage module 600, so that the radioactive aerosol inside the glove box 100 can be prevented from entering the internal passage of the optical passage module 600, and further the leakage of the radioactive substance can be prevented.

In addition, in this embodiment, a limiting structure (not shown) is convexly disposed on the outer side of the cold taper sleeve 641; the limiting structure abuts against the end surface of the base 620. Here, the limiting structure may be regarded as an annular structure formed on the outer circumference of the cold cone 641 and inserted into the first assembling channel 621 at a portion of the cold cone 641

Then, the positioning function can be provided for the assembly 5 of the cold cone 641 by the limit structure abutting against the end surface of the base 620. Meanwhile, the length of the cold taper sleeve 641 extending into the first assembling channel 621 can be determined by the arrangement of the limiting structure, and under the condition that the lens assembly 630 is abutted to the cold taper sleeve 641, the cold taper sleeve 641 can provide a precise positioning effect, so that the assembling precision of the lens assembly 630 is ensured.

Alternatively, after the cold cone 641 is assembled on the base 620, in order to improve the stability of the assembly of the cold cone 6410 on the base 620, a screwing seat (not shown) may be used to fix the cold cone 641 on the base 620, thereby improving the stability of the assembly of the cold cone 641.

In this embodiment, the base 620 further has a fifth channel 622 formed therein along the axial direction thereof, the fifth channel 622 is disposed at one end of the first assembling channel 621 close to the optical channel tube 610, and the fifth channel 622

Communicates with the first fitting passage 621; the optical channel module 600 further includes a clamp ring 650, wherein the clamp ring 5650 is assembled to the fifth channel 622 and clamped to the lens assembly 630. Provide the effect of compressing tightly to lens subassembly 630 through clamp ring 650, after lens subassembly 630 assembly is accomplished, provide the locate function to lens subassembly 630 through clamp ring 650 and sampling cone subassembly 640 jointly, can not only ensure the installation stability of lens subassembly 630, can also ensure the assembly precision of lens subassembly 630.

Of course, in case of replacing the lens assembly 630, the compression ring 650 is taken out of the 0 th fifth channel 622, and then a new lens assembly 630 is pushed into the first assembling channel 621

To eject the replaced lens assembly 630.

In addition, a sixth channel 623 is further formed in the base 620 along the axial direction of the base, and the sixth channel 623 is communicated with the fifth channel 622; a third air vent 626 is formed in the base 620, and the third air vent 626 is communicated with the sixth channel 623 and is located outside the glove box 100; the third gas guiding hole 626 is used for guiding out the gas in the sixth channel 623.

Rare gas can be introduced into the sixth channel 623 through the optical channel tube 610, so that the fifth channel 622, the sixth channel 623 and the first channel 6321 are filled with rare gas, thereby facilitating the spectrometer host 300 to detect the ultraviolet characteristic spectrum.

Optionally, another gas tube (not shown) is connected to the third gas hole 626 to facilitate the discharge of the rare gas in the sixth channel 623.

As described above, in the case where the second lens 644 in the lens assembly 630 is contaminated and needs to be replaced, the operator can operate the hand screw by using the glove to detach the hand screw, and then detach the cold taper 641 from the base 620. After the removal of the cold cone 641 is completed, the optical access tube 610 is removed from the base 620 and the clamp ring 650 is removed. At this time, the new lens assembly 630 is pushed into the first assembling passage 621 to simultaneously eject the replaced lens assembly 630 until the replaced lens assembly 630 falls into the inside of the glove box 100. The operator may then reload the cold cone 641 into the first mounting channel 621 while pushing the lens assembly 630 back to the designated mounting position; while the cold taper sleeve 641 is again tightened by the hand screw base. Finally, the clamp ring 650 is fitted into the fifth channel 622, and the optical channel tube 610 is assembled to the base 620. Due to the positioning function provided by the compression ring 650 and the sampling cone assembly 640 together for the lens assembly 630, the assembly precision of the lens assembly 630 can be ensured to reach 0.1mm; meanwhile, since the first assembling passage 621 always provides a sealing function by the lens assembly 630, leakage of radioactive materials can be prevented, and safety of operators can be improved.

In the present embodiment, referring to fig. 5, the cooling module 400 further includes a fixing ring 410, an output ring 420 and a cooling block 430. The fixing ring 410 is fitted into a peripheral wall of the glove box 100, and a second fitting passage 412 is formed in the fixing ring 410 along an axial direction thereof. The output ring 420 is inserted into the second mounting channel 412, and the output ring 420 has a mounting hole 421. The cooling block 430 is inserted into the mounting hole 421, and the coil unit 440 is inserted into the glove box 100 through the cooling block 430.

In order to secure the sealability between the fixing ring 410 and the glove box 100, a sealing structure is provided between the fixing ring 410 and the peripheral wall of the glove box 100 to prevent the radioactive material inside the glove box 100 from leaking. Optionally, the fixing ring 410 has a clamping portion 411, the clamping portion 411 is protruded at the periphery of the fixing ring 410, and the clamping portion 411 forms a ring shape. In a state where the fixing ring 410 is fitted on the peripheral wall of the glove box 100, the click portion 411 abuts against the inner wall of the glove box 100. The sealing structure is pressed between the catching portion 411 and the inner wall of the glove box 100 to seal the gap between the fixing ring 410 and the peripheral wall of the glove box 100.

It should be understood that in other embodiments of the present application, the sealing structure may be provided in other locations. For example, in the glove box 100 in which a hole adapted to the fixing ring 410 is provided and a seal structure is provided on the peripheral wall of the hole, in the case where the fixing ring 410 is fitted to the hole, the seal structure can be pressed together by the inner wall of the hole and the peripheral wall of the fixing ring 410, thereby providing a sealing action.

Similarly, a convex structure abutting against the output ring 420 is convexly arranged on the periphery of the cooling block 430, and when the cooling block 430 is assembled on the output ring 420, the convex structure abuts against one side of the output ring 420 away from the glove box 100; and a sealing structure is provided between the boss structure and the output ring 420 in order to ensure sealing performance between the cooling block 430 and the output ring 420.

In this embodiment, rf power supply assembly 500 has a high voltage coil 510, and high voltage coil 510 extends into cooling block 430 to connect to coil assembly 440, and high voltage coil 510 is used to supply cooling fluid to coil assembly 440. The cooling module 400 further comprises a ferrule screw 470 and a third pressure ring 460; the cooling block 430 is provided with an assembly groove 431, and the coil assembly 440 penetrates through the bottom wall of the assembly groove 431 to extend into the glove box 100; the third compression ring 460 is fitted in the fitting groove 431 to seal the high voltage coil 510; the ferrule screw 470 is fitted into the fitting groove 431 to press the third pressing ring 460.

The bottom of the assembly groove 431 formed in the cooling block 430 is tapered, and the third pressing ring 460 is tapered to fit the assembly groove 431, so that the third pressing ring 460 forms a hard seal when the cooling block 430 is pressed and held in the assembly groove 431 by the sleeve screw 470, thereby preventing the cooling liquid in the high-voltage coil 510 from leaking.

In addition, the cooling module 400 further includes a third sealing ring 450, and the third sealing ring 450 is disposed on the outer periphery of the output ring 420 and is pressed between the inner wall of the second assembling channel 412 and the output ring 420. By providing the third gasket 450, the sealing performance between the output ring 420 and the fixing ring 410 can be ensured, and the radioactive material in the glove box 100 can be prevented from leaking.

In the present embodiment, the cooling module 400 further includes a limiting member 480; the stopper 480 is detachably fitted to an end surface of the fixing ring 410 and is located inside the glove box 100; the limiting member 480 at least partially extends into the second assembly channel 412 to abut against the output ring 420, so that the end surface of the output ring 420 is flush with the end surface of the fixing ring 410. Alternatively, the limiting member 480 may be a limiting nail inserted into the fixing ring 410, and a head of the limiting nail is pressed against the output ring 420 to ensure that an end surface of the output ring 420 is flush with an end surface of the fixing ring 410.

In addition, rf power supply assembly 500 further includes a shield 520, shield 520 being disposed around cooling module 400. Shield 520 may provide shielding to high voltage coil 510 and coil assembly 440.

As described above, in the spectral analysis apparatus 10, since the spectrometer main unit 300 and the rf power supply module 500 are both disposed outside the glove box 100, the spectrometer main unit 300 and the rf power supply module 500 can be directly and easily repaired. For the optical channel module 600, since the optical channel tube 610 is connected to the base 620 in an inserting manner, it can be directly pulled out from the base 620 to complete the detachment of the optical channel tube 610; sample cone assembly 640 is then removed from base 620 via a glove on glove box 100; after removal of optical channel tube 610 and sample cone assembly 640, replacement lens assembly 630 may be pushed into first assembly channel 621 to eject replaced lens assembly 630 from first assembly channel 621 by way of replacement lens assembly 630, thereby completing the replacement of lens assembly 630; moreover, during the replacement process, the first assembling passage 621 is always kept sealed, so that the radioactive materials inside can be prevented from leaking out and causing a threat to operators. Therefore, the spectral analysis device 10 provided by the invention can improve the technical problem that the prior art is inconvenient to maintain, and can also improve the maintenance safety. In addition, according to the cooling module 400 provided by the invention, when the replacement is needed, the clamping sleeve screw 470 is removed, then the coil assembly 440 is removed, and the replaced output ring 420 can be directly ejected out by the replaced output ring 420, so that the replacement of the output ring 420 can be quickly and conveniently completed, the sealing performance of the second assembly channel 412 in the replacement process can be ensured, the technical problem that the analyzer is inconvenient to maintain in the prior art can be solved, and the maintenance safety is improved.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A spectroscopic analysis device, comprising:

the glove box is internally provided with a torch chamber;

the sample injection module is arranged in the glove box and is provided with a torch tube, and the torch tube extends into the torch chamber;

the spectrometer host is arranged outside the glove box;

the cooling module is embedded in the peripheral wall of the glove box; the cooling module is provided with a coil set, and the coil set extends into the glove box and is wound on the torch tube so as to generate plasma flame;

the radio frequency power supply assembly is arranged outside the glove box and is electrically connected with the coil assembly to supply power to the coil assembly; and (c) a second step of,

the optical channel module comprises an optical channel tube, a base, a lens assembly and a sampling cone assembly; the base is embedded on the peripheral wall of the glove box, the optical channel tube is inserted in the base and located outside the glove box, and the optical channel tube is connected with the spectrometer host; the base is provided with a first assembling channel along the axial direction of the base; the lens assembly is movably assembled in the first assembling channel; the sampling cone assembly is inserted into one end, far away from the optical channel tube, of the first assembly channel and is arranged inside the glove box for lighting; and light rays collected by the sampling cone assembly pass through the lens assembly and are guided into the spectrometer host by the optical channel tube.

2. The spectroscopic assembly of claim 1 wherein the lens assembly comprises a lens frame, a first lens, a first compression ring, and a first seal ring;

the lens frame is movably arranged in the first assembling channel, and the first sealing ring is pressed between the lens frame and the outer wall of the first assembling channel; the lens frame is provided with a first channel and a second channel along the axial direction of the lens frame, the inner diameter of the first channel is larger than that of the second channel, and one side of the lens frame, which is close to the sampling cone assembly, abuts against the sampling cone assembly;

the first lens is assembled in the first channel, and the first pressing ring is assembled in the first channel and is pressed on the first lens.

3. The spectroscopic assembly of claim 2 wherein said lens holder is provided with a first gas vent along a radial direction thereof, said first gas vent being in communication with said second channel; a second air guide hole is formed in the base along the radial direction of the base, and the second air guide hole is located in the glove box; the first air guide hole is correspondingly communicated with the second air guide hole, and the second air guide hole is used for guiding gas into the second channel.

4. The spectroscopic assembly of claim 1 wherein the sampling cone assembly comprises a cold cone sleeve, a cold cone orifice, a second pressure ring, a second lens, and a second seal ring;

the cold taper sleeve is inserted into the first assembling channel, and the second sealing ring is pressed between the cold taper sleeve and the inner wall of the first assembling channel; a third channel and a fourth channel are arranged in the cold taper sleeve along the axial direction; the inner diameter of the third channel is larger than that of the fourth channel, and a limiting structure is convexly arranged on the outer side of the cold taper sleeve; the limiting structure is abutted against the end face of the base;

the cold cone opening is assembled on the fourth channel and extends into the glove box for lighting;

the second lens is assembled in the third channel; the second pressing ring is assembled in the third channel and pressed on the second lens, and a groove is formed between the second lens and the inner wall of the third channel along the radial periphery of the second lens.

5. The apparatus according to claim 1, wherein the base further defines a fifth channel therein along an axial direction thereof, the fifth channel is disposed at an end of the first assembling channel adjacent to the optical channel tube, and the fifth channel is communicated with the first assembling channel; the optical channel module further comprises a compression ring, and the compression ring is assembled on the fifth channel and is pressed on the lens assembly.

6. The spectroscopic analysis device of claim 5, wherein the base further defines therein a sixth channel along the axial direction thereof, the sixth channel being in communication with the fifth channel; a third air guide hole is formed in the base, communicated with the sixth channel and located outside the glove box; the third gas guide hole is used for guiding out the gas in the sixth channel.

7. The spectroscopic assembly of any one of claims 1 to 6 wherein the cooling module further comprises a retaining ring, an output ring, and a cooling block;

the fixing ring is embedded in the peripheral wall of the glove box, and a second assembling channel along the axial direction of the fixing ring is formed in the fixing ring;

the output ring is inserted into the second assembling channel, and assembling holes are formed in the output ring;

the cooling block is inserted into the assembling hole, and the coil group penetrates through the cooling block and extends into the glove box.

8. The spectroscopic assembly of claim 7 wherein the rf power supply assembly has a high voltage coil extending into the cooling block to access the coil assembly, the high voltage coil being configured to deliver cooling fluid to the coil assembly, the rf power supply assembly further comprising a shield disposed around the cooling module;

the cooling module further comprises a clamping sleeve screw and a third pressure ring; an assembly groove is formed in the cooling block, and the coil group penetrates through the bottom wall of the assembly groove to extend into the glove box; the third pressure ring is assembled in the assembling groove to seal the high-voltage coil; the clamping sleeve screw is assembled in the assembling groove to press and hold the third pressing ring.

9. The spectroscopic assembly of claim 7 wherein the cooling module further comprises a third seal ring disposed about the outer periphery of the output ring and compressed between the inner wall of the second mounting channel and the output ring.

10. The spectroscopic assembly of claim 7 wherein the cooling module further comprises a limit stop; the limiting piece is detachably assembled on the end face of the fixing ring and is positioned inside the glove box; the limiting piece at least partially extends into the second assembling channel to abut against the output ring, so that the end face of the output ring is flush with the end face of the fixing ring.

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