A spectral analysis device

Abstract

The application provides a kind of spectral analysis device, it is related to spectral analysis device technical field.The spectral analysis device, spectrometer host computer and radio frequency power supply component are all arranged outside glove box.Cooling module is embedded in the peripheral wall of glove box;Cooling module has coil group, and coil group is wound around torch pipe.Optical channel module includes optical channel pipe, base, lens assembly and sampling cone assembly;Base is embedded in the peripheral wall of glove box, and optical channel pipe is inserted into base and located outside glove box, and optical channel pipe is connected with spectrometer host computer;Base is provided with the first assembly channel along its axial direction;Lens assembly is movably assembled in the first assembly channel;Sampling cone assembly is inserted into the end of the first assembly channel away from optical channel pipe, and is arranged inside glove box to be used for light collection;Light collected by sampling cone assembly is guided into spectrometer host computer by optical channel pipe.The spectral analysis device provided by the application can improve the problem that the analyzer is inconvenient to maintain.

Description

Technical Field

[0001] This invention relates to the field of spectral analysis device technology, and more specifically, to a spectral analysis device. Background Technology

[0002] In the spent fuel reprocessing stage of the nuclear industry, spectroscopic analysis is required to analyze non-volatile elements in the waste liquid. However, the waste liquid itself is gamma-ray radioactive, so a glove box is needed to provide radiation protection, prevent the leakage of gamma aerosols, and ensure the safety of personnel. Current technology generally places the entire analytical instrument inside the glove box. Due to the radiation effect of gamma rays on electronics, this not only greatly reduces the lifespan of the instrument but also makes maintenance extremely inconvenient. Large spare parts cannot be transported into the glove box through the transfer channel, which also increases the amount of nuclear waste. Summary of the Invention

[0003] The present invention aims to provide a spectral analysis device that can improve the technical problem of inconvenient maintenance of analyzers in the prior art.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] An embodiment of the present invention provides a spectral analysis device, comprising:

[0006] The glove box contains a torch chamber.

[0007] The sample introduction module is located inside the glove box and has a torch tube that extends into the torch chamber;

[0008] The main unit of the spectrometer is located outside the glove box;

[0009] A cooling module is embedded in the peripheral wall of the glove box; the cooling module has a coil assembly that extends into the glove box and is wound around the torch tube for generating a plasma flame.

[0010] A radio frequency power supply assembly, located outside the glove box and electrically connected to the coil assembly to provide power to the coil assembly; and,

[0011] An optical channel module includes 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 to the spectrometer main unit. The base has a first assembly channel along its axial direction. The lens assembly is movably assembled into the first assembly channel. The sampling cone assembly is inserted into the end of the first assembly channel away from the optical channel tube and is located inside the glove box for light collection. The light collected by the sampling cone assembly is guided to the spectrometer main unit through the optical channel tube via the lens assembly.

[0012] The advantages of the spectral analysis device provided by this invention compared to the prior art include:

[0013] In this spectroscopic analysis device, since the spectrometer main unit and RF power supply assembly are both located outside the glove box, maintenance of the spectrometer main unit and RF power supply assembly can be conveniently performed directly. For the optical channel module, since the optical channel tube is connected to the base via a plug-in connection, it can be directly pulled out from the base to disassemble the optical channel tube. Then, the sampling cone assembly is removed from the base using the gloves provided in the glove box. After disassembling the optical channel tube and sampling cone assembly, the replacement lens assembly can be pushed into the first assembly channel, and the replacement lens assembly is pushed out of the first assembly channel by the replacement lens assembly, thus completing the lens assembly replacement. Furthermore, the first assembly channel is kept sealed throughout the replacement process to prevent leakage of internal radioactive materials that could threaten the operator. Therefore, the spectroscopic analysis device provided by this invention can improve the technical problem of inconvenient maintenance in the prior art, while also improving maintenance safety.

[0014] Optionally, the lens assembly includes a lens holder, a first lens, a first pressure ring, and a first sealing ring;

[0015] The lens holder is movably disposed within the first assembly channel, and the first sealing ring is pressed between the lens holder and the outer wall of the first assembly channel; the lens holder has a first channel and a second channel along its axial direction, and the inner diameter of the first channel is larger than the inner diameter of the second channel;

[0016] The first lens is assembled in the first channel, and the first pressure ring is assembled in the first channel and presses against the first lens.

[0017] Optionally, a first air guide hole is formed on the lens holder along its radial direction, and the first air guide hole is connected to the second channel; a second air guide hole is formed on the base along its radial direction, and the second air guide hole is located inside the glove box; the first air guide hole and the second air guide hole are connected to each other, and the second air guide hole is used to introduce gas into the second channel.

[0018] Optionally, the side of the lens holder closest to the sampling cone assembly abuts against the sampling cone assembly.

[0019] Optionally, the sampling cone assembly includes a cold cone sleeve, a cold cone opening, a second pressure ring, a second lens, and a second sealing ring;

[0020] The cold cone sleeve is inserted into the first assembly channel, and the second sealing ring is pressed between the cold cone sleeve and the inner wall of the first assembly channel; the cold cone sleeve is provided with a third channel and a fourth channel along the axial direction; the inner diameter of the third channel is larger than the inner diameter of the fourth channel;

[0021] The cold cone nozzle is fitted into the fourth channel and extends into the glove box for light collection;

[0022] The second lens is assembled into the third channel; the second pressure ring is assembled into the third channel and presses against the second lens.

[0023] Optionally, the second lens forms a groove with the inner wall of the third channel along its radial outer periphery.

[0024] Optionally, a limiting structure protrudes from the outer side of the cold cone sleeve; the limiting structure abuts against the end face of the base 5.

[0025] Optionally, the base also has a fifth channel along its axial direction, the fifth channel is located at one end of the first assembly channel near the optical channel tube, and the fifth channel is connected to the first assembly channel; the optical channel module also includes a clamping ring, the clamping ring is assembled in the fifth channel and presses against the lens assembly.

[0026] Optionally, the base also has a sixth channel along its axial direction, which communicates with the fifth channel; the base has a third air guide hole, which communicates with the sixth channel and is located outside the glove box; the third air guide hole is used to discharge the gas in the sixth channel.

[0027] Optionally, the cooling module further includes a fixing ring, an output ring, and a cooling block; the fixing ring is embedded in the peripheral wall of the glove box, and the fixing ring has an opening along its axis.

[0028] The second assembly channel;

[0029] The output ring is inserted into the second assembly channel, and the output ring has an assembly hole.

[0030] The cooling block is inserted into the mounting hole, and the coil assembly extends through the cooling block into the glove box.

[0031] Optionally, the radio frequency power supply assembly has a high-voltage coil that extends into the cooling block to connect to the coil group, and the high-voltage coil is used to supply coolant to the coil group;

[0032] The cooling module also includes a retaining screw and a third pressure ring; the cooling block has an assembly groove, and the coil assembly passes through the bottom wall of the assembly groove to extend into the glove box; the third pressure ring is assembled in the assembly groove to seal the high-voltage coil; the retaining screw is assembled in the assembly groove to hold the third pressure ring.

[0033] Optionally, the cooling module further includes a third sealing ring, which is disposed on the outer periphery of the output ring and pressed between the inner wall of the second assembly channel and the output ring.

[0034] Optionally, the cooling module further includes a limiting member; the limiting member is detachably mounted on the end face of the fixing ring and located inside the glove box; the limiting member extends at least partially into the second assembly 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.

[0035] Optionally, the RF power supply assembly further includes a shielding cover surrounding the cooling module.

[0036] In addition, when the cooling module provided by this invention needs to be replaced, the ferrule screws are removed, and then the coil assembly is removed. The replacement output ring can be directly pushed out, which not only allows for quick and convenient replacement of the output ring, but also ensures the sealing of the second assembly channel during the replacement process. This can improve the technical problem of the inconvenience of maintenance of the analyzer in the prior art, and also improve the safety of maintenance. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the spectral analysis device provided in the embodiments of this application from a first-view perspective;

[0039] Figure 2 This is a schematic diagram of the spectral analysis device provided in the embodiments of this application from a second perspective;

[0040] Figure 3 A cross-sectional structural schematic diagram of a portion of the spectral analysis device according to an embodiment of this application;

[0041] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0042] Figure 5 This is a cross-sectional structural schematic diagram of another part of the spectral analysis device according to an embodiment of this application.

[0043] Icons: 10-Spectroscopic analysis device; 100-Glove box; 110-Torch chamber; 200-Sample introduction module; 210-Torch tube; 300-Spectrometer main unit; 400-Cooling module; 410-Retaining ring; 411-Snap-fit ​​part; 412-Second assembly channel; 420-Output ring; 421-Assembly hole; 430-Cooling block; 431-Assembly groove; 440-Coil assembly; 450-Third sealing ring; 460-Third pressure ring; 470-Collar screw; 480-Limiting component; 500-RF power supply assembly; 510-High voltage coil; 520-Shielding cover; 600-Optical channel module; 610-Optical channel tube; 620 - Base; 621 - First assembly channel; 622 - Fifth channel; 623 - Sixth channel; 624 - Second air guide hole; 625 - Support part; 626 - Third air guide hole; 630 - Lens assembly; 631 - First lens; 632 - Lens holder; 6321 - First channel; 6322 - Second channel; 6323 - First air guide hole; 633 - First pressure ring; 634 - First sealing ring; 640 - Sampling cone assembly; 641 - Cold cone sleeve; 6411 - Third channel; 6412 - Fourth channel; 642 - Cold cone opening; 643 - Second pressure ring; 644 - Second lens; 645 - Second sealing ring; 650 - Compression ring. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0046] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0047] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0048] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0049] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0050] This application provides a spectral analysis device 10, which can use spectral analysis to analyze non-volatile elements in waste liquid generated by the nuclear industry.

[0051] In order to improve the technical problem that the spectral analysis device 10 in the prior art is inconvenient to maintain, the spectral analysis device 10 of this application is provided.

[0052] Please see Figure 1 and Figure 2In this embodiment, the spectral analysis device 10 includes a glove box 100, a sample introduction module 200, a spectrometer main unit 300, a cooling module 400, an RF power supply assembly 500, and an optical channel module 600. The glove box 100 has multiple gloves (not shown) mounted on its periphery, allowing operators to insert their hands inside the gloves for operation within the glove box 100. The glove box 100 is filled with radioactive aerosol, providing a strong seal to prevent leakage of radioactive materials. Additionally, a torch chamber 110 is located within the glove box 100. The sample introduction module 200 is situated inside the glove box 100 and includes a torch tube 210. The torch tube 210 carries the atomized waste liquid into the plasma flame via a carrier gas and is installed within the torch chamber 110. A spectrometer main unit 300 is located outside the glove box 100. The spectrometer main unit 300 analyzes the collected light to analyze non-volatile elements in the waste liquid using spectral analysis. A cooling module 400 is embedded in the peripheral wall of the glove box 100; the cooling module 400 has a coil assembly 440 that extends into the glove box 100 and is wound around the torch tube 210 for generating a plasma flame. A radio frequency power supply assembly 500 is located outside the glove box 100 and is electrically connected to the coil assembly 440 to provide power to the coil assembly 440. The optical channel module 600 includes an optical channel tube 610, a base 620, a lens assembly 630, and a sampling cone assembly 640. The base 620 is embedded in 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. The optical channel tube 610 is connected to the spectrometer host 300. The base 620 has a first assembly channel 621 along its axial direction. The lens assembly 630 is movably assembled into the first assembly channel 621. The sampling cone assembly 640 is inserted into the end of the first assembly channel 621 away from the optical channel tube 610 and is located inside the glove box 100 for light collection. The light collected by the sampling cone assembly 640 is guided to the spectrometer host 300 through the lens assembly 630 and the optical channel tube 610.

[0053] It should be noted that the atomized waste liquid is carried into the torch 210 by the carrier gas. Guided by the torch 210, it is drawn into the plasma flame at the top of the torch 210, causing the atoms in the waste liquid to be excited into an unstable state, releasing photons and forming the characteristic spectral lines of the elements. At this time, the sampling cone assembly 640 can collect light, so that the characteristic spectrum, after being guided by the sampling cone assembly 640, the lens assembly 630, and the optical channel tube 610, is introduced into the spectrometer host 300 for analysis.

[0054] As described above, in this spectral analysis device 10, since the spectrometer host 300 and the RF power supply assembly 500 are both located outside the glove box 100, it is convenient to directly repair the spectrometer host 300 and the RF power supply assembly 500. As for the optical channel module 600, since the optical channel tube 610 is connected to the base 620 via a plug-in connection, it can be directly pulled out from the base 620 to disassemble the optical channel tube 610. Then, using the gloves on the glove box 100, the sampling cone assembly 640 is removed from the base 620. After disassembling the optical channel tube 610 and the sampling cone assembly 640, the replacement lens assembly 630 can be pushed into the first assembly channel 621, so that the replacement lens assembly 630 is pushed out of the first assembly channel 621, thereby completing the replacement of the lens assembly 630. Furthermore, during the replacement process, the first assembly channel 621 is kept sealed to prevent leakage of internal radioactive materials that could threaten the operator. Therefore, the spectral analysis device 10 provided by the present invention can improve the technical problem of inconvenient maintenance in the prior art, and at the same time improve the safety of maintenance.

[0055] It is worth noting that, since the waste liquid inside the glove box 100 is radioactive, a sealing structure is provided between the base 620 and the peripheral wall of the glove box 100 to seal the gap between the base 620 and the peripheral wall of the glove box 100, thus preventing the leakage of radioactive materials. Optionally, in this embodiment, a supporting portion 625 is protruding from the outer periphery of the base 620, and the supporting portion 625 is annularly protruding from the outer periphery of the base 620; when the base 620 is embedded in the peripheral wall of the glove box 100, the supporting portion 625 abuts against the outer wall of the glove box 100. The sealing structure is then pressed between the supporting portion 625 and the outer wall of the glove box 100 to seal the gap formed between the supporting portion 625 and the glove box 100. Of course, in other embodiments, other methods can be used to seal the base 620 and the periphery of the glove box 100. For example, a sealing structure can be provided on the inner wall of the hole in the glove box 100 where the base 620 is embedded. When the base 620 is embedded in the hole in the glove box 100, the base 620 presses the sealing structure to achieve a seal.

[0056] In this embodiment, please refer to the following: Figure 3 and Figure 4The lens assembly 630 includes a lens holder 632, a first lens 631, a first pressure ring 633, and a first sealing ring 634. The lens holder 632 is movably disposed within a first assembly channel 621, and the first sealing ring 634 is pressed between the lens holder 632 and the outer wall of the first assembly channel 621. The lens holder 632 has a first channel 6321 and a second channel 6322 along its axial direction, and the inner diameter of the first channel 6321 is larger than the inner diameter of the second channel 6322. The first lens 631 is assembled in the first channel 6321, and the first pressure ring 633 is assembled in the first channel 6321 and pressed against the first lens 631.

[0057] By setting the first lens 631, not only can light pass through the optical channel module 600, but the first lens 631 can also seal the first assembly channel 621, thereby preventing radiation.

[0058] The substance leaks out from the first assembly channel 621. However, since the first lens 631 is a vulnerable component, the lens holder 632 is assembled in the first assembly channel 621 in a movable manner. If the first lens 631 needs to be replaced, a replacement lens assembly 630, i.e., a new one, can be used.

[0059] The lens assembly 630 is directly pushed into the first assembly channel 621 to push out the lens assembly 6300 to be replaced and complete the replacement.

[0060] Of course, since a first sealing ring 634 is provided between the inner wall of the lens holder 632 and the first assembly channel 621, the sealing effect can be provided by the first sealing ring 634, which can ensure the sealing of the first assembly channel 621 during the replacement of the lens assembly 630, thereby preventing the leakage of radioactive materials during the replacement process and improving the safety of the operator.

[0061] 5. It is worth noting that before the new lens assembly 630 is pushed into the first assembly channel 621,

[0062] The assembly of the first pressure ring 633, the first lens 631, and the lens holder 632 must be completed first; and the first sealing ring 634 must be fitted onto the corresponding position on the lens holder 632 to ensure that a seal can be achieved when the new lens assembly 630 is pushed into the first assembly channel 621.

[0063] Furthermore, in this embodiment, since the arrangement of the first channel 6321 and the second channel 6322 forms a stepped structure, the first lens 631 is pressed against this stepped structure; in order to improve sealing,

[0064] 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 holder 632.

[0065] In this embodiment, a first air guide hole 6323 is formed radially on the lens holder 632, and the first air guide hole 6323 is connected to the second channel 6322; a second air guide hole 624 is formed radially on the base 620, and the second air guide hole 624 is located inside the glove box 100; the first air guide hole 6323 and the second air guide hole 624 are connected to each other, and the second air guide hole 624 is used to introduce gas into the second channel 6322.

[0066] 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, can be introduced into the second channel 6322, so that the second channel 6322 is filled with argon, which facilitates the detection of ultraviolet characteristic spectra by the spectrometer host 300. Of course, other rare gases can be introduced according to the actual situation.

[0067] To facilitate the introduction of gas into the second channel 6322 via the first vent 6323 and the second vent 624, the glove box 100 is also equipped with a gas guide tube (not shown in the figure). The gas guide tube is connected to the second vent 624 to introduce gas into the second channel 6322. Furthermore, to facilitate the connection between the gas guide tube and the second vent 624, the length of the gas guide tube can be extended to 100mm. Of course, the length of the gas guide tube can also be selected according to the actual situation.

[0068] Optionally, the lens holder 632 abuts against the sampling cone assembly 640 on the side closest to the sampling cone assembly 640. That is, the sampling cone assembly 640 can provide a certain positioning function for the lens holder 632 to ensure that the lens holder 632 is assembled in the designated position. It is worth noting that the positioning function provided by the sampling cone assembly 640 to the lens holder 632 also facilitates the mutual cooperation between the first air guide hole 6323 and the second air guide hole 624, improving the fitting accuracy. It is precisely because of the repeated positioning function of the sampling cone assembly 640 on the lens assembly 630 that the positioning accuracy of the lens assembly 630 can reach 0.1 mm.

[0069] In this embodiment, the sampling cone assembly 640 includes a cold cone sleeve 641, a cold cone opening 642, a second pressure ring 643, a second lens 644, and a second sealing ring 645. The cold cone sleeve 641 is inserted into the first assembly channel 621. When the lens assembly 630 needs to be replaced, the cold cone sleeve 641 can be directly pulled out of the first assembly channel 621, allowing the replaced lens assembly 630 to be easily pushed out of the first assembly channel 621. The second sealing ring 645 is pressed between the cold cone sleeve 641 and the inner wall of the first assembly channel 621 to ensure the sealing between the cold cone sleeve 641 and the inner wall of the first assembly channel 621, preventing the leakage of radioactive materials. The cold cone sleeve 641 has a third channel 6411 and a fourth channel 6412 axially arranged inside; the inner diameter of the third channel 6411 is larger than the inner diameter of the fourth channel 6412. The cold cone 642 is fitted into the fourth channel 6412 and extends into the glove box 100 for light collection. The second lens 644 is fitted into the third channel 6411; the second pressure ring 643 is fitted into the third channel 6411 and holds the second lens 644. Furthermore, the orientation of the cold cone 642 is perpendicular to the axial direction of the torch tube 210, meaning that the axis of the cold cone 642 forms a 90° angle with the axis of the torch tube 210.

[0070] During light collection, light is introduced through the cold cone opening 642. The light entering the cold cone sleeve 641 needs to pass through the second lens 644 sequentially to enter the second channel 6322, and then through the first lens 631 before being guided into the optical channel tube 610. In other words, in the optical channel module 600, the sealing of the optical channel module 600 is achieved through a dual-lens system, which can improve the sealing performance; and the second lens 644 can also prevent most of the large aerosol particles inside the glove box 100 from affecting the first lens 631, thereby preventing the first lens 631 from being contaminated and damaged, thus avoiding frequent replacement of the lens assembly 630.

[0071] Because the inner diameters of the third channel 6411 and the fourth channel 6412 are different, a stepped structure is formed between the third channel 6411 and the fourth channel 6412, and the second lens 644 is pressed against this stepped structure by the second pressure ring 643.

[0072] Optionally, the second lens 644 forms a groove (not shown) along its radial outer periphery with the inner wall of the third channel 6411. Since the second channel 6322 and the third channel 6411 are connected, this groove allows the rare gas in the second channel 6322 to be introduced into the fourth channel 6412, thereby allowing the rare gas to be introduced into the cold cone 642. This fills the internal channels of the optical channel module 600 with rare gas, effectively detecting ultraviolet characteristic spectra. Simultaneously, the presence of rare gas in the internal channels of the optical channel module 600 creates a positive pressure, preventing radioactive aerosols from inside the glove box 100 from entering the internal channels of the optical channel module 600, further preventing the leakage of radioactive materials.

[0073] In addition, in this embodiment, a limiting structure (not shown in the figure) protrudes from the outer side of the cold cone sleeve 641; the limiting structure abuts against the end face of the base 620. This limiting structure can be considered as forming an annular structure around the outer periphery of the cold cone sleeve 641, with a portion of the cold cone sleeve 641 inserted into the first assembly channel 621.

[0074] Subsequently, the limiting structure, abutting against the end face of the base 620, provides a positioning function for the assembly 5 of the cold cone sleeve 641. At the same time, the length of the cold cone sleeve 641 extending into the first assembly channel 621 can be determined by the setting of the limiting structure. When the lens assembly 630 abuts against the cold cone sleeve 641, the cold cone sleeve 641 can provide a precise positioning function, ensuring the assembly accuracy of the lens assembly 630.

[0075] Optionally, after the cold cone sleeve 641 is assembled on the base 620, in order to improve the stability of the cold cone sleeve 6410 assembled on the base 620, a hand-tightening seat (not shown in the figure) can be used to fix the cold cone sleeve 641 on the base 620, thereby improving the assembly stability of the cold cone sleeve 641.

[0076] In this embodiment, a fifth channel 622 is also provided within the base 620 along its axial direction. The fifth channel 622 is located at one end of the first assembly channel 621 near the optical channel tube 610, and the fifth channel 622...

[0077] The optical channel module 600 is connected to the first assembly channel 621. It also includes a clamping ring 650, which is mounted on the fifth channel 622 and holds the lens assembly 630 in place. The clamping ring 650 provides a clamping effect to the lens assembly 630. After the lens assembly 630 is assembled, the clamping ring 650 and the sampling cone assembly 640 together provide a positioning effect for the lens assembly 630, ensuring both the installation stability and assembly accuracy of the lens assembly 630.

[0078] Of course, if the lens assembly 630 needs to be replaced, the clamping ring 650 must first be removed from the fifth channel 622, and then the new lens assembly 630 must be pushed into the first assembly channel 621.

[0079] In the middle, the lens assembly 630 to be replaced is pushed out.

[0080] In addition, a sixth channel 623 is provided in the base 620 along its axial direction, and the sixth channel 623 is connected to the fifth channel 622; a third air guide hole 626 is provided on the base 620, which is connected to the sixth channel 623 and located outside the glove box 100; the third air guide hole 626 is used to exhaust the gas in the sixth channel 623.

[0081] Among them, rare gas can also be introduced into the sixth channel 623 in 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 detection of ultraviolet characteristic spectra by the spectrometer host 300.

[0082] Optionally, another gas duct (not shown in the figure) can be connected at the third gas duct 626 to facilitate the extraction of rare gas from the sixth channel 623.

[0083] As described above, if the second lens 644 in the lens assembly 630 is contaminated and needs to be replaced, the operator can remove the hand-tightening seat using gloves, and then remove the cold cone sleeve 641 from the base 620. After removing the cold cone sleeve 641, the optical channel tube 610 is removed from the base 620, and then the clamping ring 650 is removed. At this time, the new lens assembly 630 is pushed into the first assembly channel 621 to simultaneously push out the replaced lens assembly 630 until the replaced lens assembly 630 falls into the glove box 100. Then, the operator can reinstall the cold cone sleeve 641 into the first assembly channel 621, while simultaneously pushing the lens assembly 630 back to the designated installation position; at the same time, the cold cone sleeve 641 is tightened again using the hand-tightening seat. Finally, the clamping ring 650 is installed into the fifth channel 622, and the optical channel tube 610 is assembled onto the base 620. The positioning effect provided by the clamping ring 650 and the sampling cone assembly 640 to the lens assembly 630 ensures that the assembly accuracy of the lens assembly 630 reaches 0.1mm. At the same time, the lens assembly 630 provides a sealing effect in the first assembly channel 621, which prevents the leakage of radioactive materials and improves the safety of the operator.

[0084] In this embodiment, please refer to Figure 5The cooling module 400 also includes a retaining ring 410, an output ring 420, and a cooling block 430. The retaining ring 410 is embedded in the peripheral wall of the glove box 100, and a second assembly channel 412 along its axial direction is formed inside the retaining ring 410. The output ring 420 is inserted into the second assembly channel 412, and an assembly hole 421 is formed on the output ring 420. The cooling block 430 is inserted into the assembly hole 421, and the coil assembly 440 extends into the glove box 100 through the cooling block 430.

[0085] To ensure a tight seal between the retaining ring 410 and the glove box 100, a sealing structure is provided between the retaining ring 410 and the peripheral wall of the glove box 100 to prevent leakage of radioactive materials inside the glove box 100. Optionally, the retaining ring 410 has a snap-fit ​​portion 411 that protrudes from the outer periphery of the retaining ring 410 and forms an annular shape. When the retaining ring 410 is fitted onto the peripheral wall of the glove box 100, the snap-fit ​​portion 411 abuts against the inner wall of the glove box 100. The sealing structure is then pressed between the snap-fit ​​portion 411 and the inner wall of the glove box 100 to seal the gap between the retaining ring 410 and the peripheral wall of the glove box 100.

[0086] It should be understood that in other embodiments of this application, the sealing structure may also be provided in other locations. For example, a hole adapted to the retaining ring 410 is provided on the glove box 100, and a sealing structure is provided on the peripheral wall of the hole. When the retaining ring 410 is assembled with the hole, the sealing structure can be pressed together by the inner wall of the hole and the outer peripheral wall of the retaining ring 410, thereby providing a sealing effect.

[0087] Similarly, a protruding structure is provided on the outer periphery of the cooling block 430 to abut against the output ring 420. When the cooling block 430 is assembled with the output ring 420, the protruding structure abuts against the side of the output ring 420 away from the glove box 100. In order to ensure the sealing performance between the cooling block 430 and the output ring 420, a sealing structure is provided between the protruding structure and the output ring 420.

[0088] In this embodiment, the radio frequency power supply assembly 500 has a high-voltage coil 510 that extends into the cooling block 430 to connect to the coil assembly 440. The high-voltage coil 510 is used to supply coolant to the coil assembly 440. The cooling module 400 also includes a retaining screw 470 and a third pressure ring 460. The cooling block 430 has an assembly groove 431, and the coil assembly 440 passes through the bottom wall of the assembly groove 431 to extend into the glove box 100. The third pressure ring 460 is assembled in the assembly groove 431 to seal the high-voltage coil 510. The retaining screw 470 is assembled in the assembly groove 431 to hold the third pressure ring 460.

[0089] The bottom of the mounting groove 431 on the cooling block 430 is conical, and the third pressure ring 460 is formed into a conical shape that fits the mounting groove 431. Thus, when the cooling block 430 is pressed into the mounting groove 431 by the ferrule screw 470, the third pressure ring 460 forms a hard seal, thereby preventing coolant leakage in the high voltage coil 510.

[0090] In addition, the cooling module 400 also includes a third sealing ring 450, which is disposed on the outer periphery of the output ring 420 and pressed between the inner wall of the second assembly channel 412 and the output ring 420. The third sealing ring 450 ensures the sealing performance between the output ring 420 and the fixed ring 410, preventing the leakage of radioactive materials in the glove box 100.

[0091] In this embodiment, the cooling module 400 further includes a limiting member 480; the limiting member 480 is detachably mounted on the end face of the retaining ring 410 and located inside the glove box 100; the limiting member 480 extends at least partially into the second assembly channel 412 to abut against the output ring 420, so that the end face of the output ring 420 is flush with the end face of the retaining ring 410. Optionally, the limiting member 480 can be a limiting pin, which is inserted into the retaining ring 410, and the head of the limiting pin presses against the output ring 420 to ensure that the end face of the output ring 420 is flush with the end face of the retaining ring 410.

[0092] Additionally, the RF power supply assembly 500 includes a shielding cover 520 surrounding the cooling module 400. The shielding cover 520 provides shielding for the high-voltage coil 510 and the coil assembly 440.

[0093] In summary, in this spectral analysis device 10, since the spectrometer main unit 300 and the RF power supply assembly 500 are both located outside the glove box 100, maintenance of the spectrometer main unit 300 and the RF power supply assembly 500 can be easily performed directly. As for the optical channel module 600, since the optical channel tube 610 is connected to the base 620 via a plug-in connection, it can be directly pulled out from the base 620 to disassemble the optical channel tube 610. Then, using the gloves on the glove box 100, the sampling cone assembly 640 is removed from the base 620. After disassembling the optical channel tube 610 and the sampling cone assembly 640, the replacement lens assembly 630 can be pushed into the first assembly channel 621, so that the replacement lens assembly 630 is pushed out of the first assembly channel 621, thus completing the replacement of the lens assembly 630. Furthermore, during the replacement process, the first assembly channel 621 is kept sealed to prevent leakage of internal radioactive materials that could threaten the operator. Therefore, the spectral analysis device 10 provided by the present invention can improve the technical problem of inconvenient maintenance in the prior art, and at the same time improve the safety of maintenance. In addition, when the cooling module 400 provided by the present invention needs to be replaced, the ferrule screw 470 is removed, and then the coil assembly 440 is removed. The replacement output ring 420 can be directly pushed out by the replacement output ring 420. This not only allows for quick and convenient replacement of the output ring 420, but also ensures the sealing of the second assembly channel 412 during the replacement process. This can improve the technical problem of inconvenient maintenance of the analyzer in the prior art, and at the same time improve the safety of maintenance.

[0094] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A spectral analysis device, characterized in that, include: The glove box contains a torch chamber. The sample introduction module is located inside the glove box and has a torch tube that extends into the torch chamber; The main unit of the spectrometer is located outside the glove box; A cooling module is embedded in the peripheral wall of the glove box; the cooling module has a coil assembly that extends into the glove box and is wound around the torch tube for generating a plasma flame. A radio frequency power supply assembly, located outside the glove box and electrically connected to the coil assembly to provide power to the coil assembly; and, An optical channel module includes an optical channel tube, a base, a lens assembly, and a sampling cone assembly. The base is embedded in the peripheral wall of a glove box. The optical channel tube is inserted into the base and located outside the glove box, and is connected to the spectrometer main unit. The base has a first mounting channel along its axial direction. The lens assembly is movably mounted in the first mounting channel. The sampling cone assembly is inserted into the end of the first mounting channel away from the optical channel tube and is located inside the glove box for light collection. The light collected by the sampling cone assembly passes through the lens assembly and is guided to the spectrometer main unit through the optical channel tube. The cooling module also includes a fixed ring, an output ring, and a cooling block; The fixing ring is embedded in the peripheral wall of the glove box, and a second assembly channel along its axial direction is opened in the fixing ring; The output ring is inserted into the second assembly channel, and the output ring has an assembly hole. The cooling block is inserted into the mounting hole, and the coil assembly extends through the cooling block into the glove box. The cooling module also includes a third sealing ring, which is disposed on the outer periphery of the output ring and is pressed between the inner wall of the second assembly channel and the output ring.

2. The spectral analysis apparatus according to claim 1, characterized in that, The lens assembly includes a lens frame, a first lens, a first pressure ring, and a first sealing ring; The lens holder is movably disposed within the first assembly channel, and the first sealing ring is pressed between the lens holder and the outer wall of the first assembly channel; the lens holder has a first channel and a second channel along its axial direction, the inner diameter of the first channel is larger than the inner diameter of the second channel, and the side of the lens holder near the sampling cone assembly abuts against the sampling cone assembly; The first lens is assembled in the first channel, and the first pressure ring is assembled in the first channel and presses against the first lens.

3. The spectral analysis apparatus according to claim 2, characterized in that, A first air guide hole is formed radially on the lens holder, and the first air guide hole is connected to the second channel; a second air guide hole is formed radially on the base, and the second air guide hole is located inside the glove box; the first air guide hole and the second air guide hole are connected to each other, and the second air guide hole is used to introduce gas into the second channel.

4. The spectral analysis apparatus according to claim 1, characterized in that, The sampling cone assembly includes a cold cone sleeve, a cold cone opening, a second pressure ring, a second lens, and a second sealing ring; The cold cone sleeve is inserted into the first assembly channel, and the second sealing ring is pressed between the cold cone sleeve and the inner wall of the first assembly channel; the cold cone sleeve is provided with a third channel and a fourth channel along the axial direction; the inner diameter of the third channel is larger than the inner diameter of the fourth channel, and a limiting structure protrudes from the outer side of the cold cone sleeve; the limiting structure abuts against the end face of the base; The cold cone nozzle is fitted into the fourth channel and extends into the glove box for light collection; The second lens is assembled into the third channel; the second pressure ring is assembled into the third channel and presses against the second lens, and the outer periphery of the second lens along its radial direction forms a groove with the inner wall of the third channel.

5. The spectral analysis apparatus according to claim 1, characterized in that, The base also has a fifth channel along its axial direction, which is located at one end of the first assembly channel near the optical channel tube and is connected to the first assembly channel; the optical channel module also includes a clamping ring, which is assembled in the fifth channel and presses against the lens assembly.

6. The spectral analysis apparatus according to claim 5, characterized in that, The base also has a sixth channel along its axial direction, which is connected to the fifth channel; the base has a third air guide hole, which is connected to the sixth channel and located outside the glove box; the third air guide hole is used to discharge the gas in the sixth channel.

7. The spectroscopic analysis apparatus according to claim 1, characterized in that, The radio frequency power supply assembly has a high-voltage coil that extends into the cooling block to connect to the coil group. The high-voltage coil is used to supply coolant to the coil group. The radio frequency power supply assembly also includes a shield that surrounds the cooling module. The cooling module also includes a retaining screw and a third pressure ring; the cooling block has an assembly groove, and the coil assembly passes through the bottom wall of the assembly groove to extend into the glove box; the third pressure ring is assembled in the assembly groove to seal the high-voltage coil; the retaining screw is assembled in the assembly groove to hold the third pressure ring.

8. The spectral analysis apparatus according to claim 1, characterized in that, The cooling module also includes a limiting member; the limiting member is detachably mounted on the end face of the fixing ring and located inside the glove box; the limiting member extends at least partially into the second assembly 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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