Halogen absorption device for an analyzer

Abstract

The utility model relates to analytical instrument auxiliary equipment technical field especially a kind of halogen absorption device for analyzer, including main mounting bracket, fixed on its central shaft support, and rotatably sleeved in the movable support assembly of central shaft support on. Movable support assembly is made of first movable frame and second movable frame, and rotation adjustment and stable positioning are realized by the cooperation of central shaft support with hinged cylinder with damper line. First to fourth absorption tube are installed in two movable frame end portions and are sequentially connected in series, form complete gas path. The first three absorption tubes are filled with quartz wool, halogen absorbent and adsorbent in layers, for efficient absorption of halogen gas;The fourth absorption tube is filled with quartz wool and magnesium perchlorate. Each absorption tube is provided with a discharge assembly composed of a discharge spring and a push plate, which can automatically push out the waste agent during replacement, making maintenance convenient and safe. The device has compact structure and adjustable angle, which can effectively protect the detector and improve maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for analytical instruments, and in particular to a halogen absorption device for an analyzer. Background Technology

[0002] In rare earth, metallurgy, and chemical industries, it is often necessary to analyze the content of gaseous elements such as carbon, sulfur, oxygen, nitrogen, and hydrogen in samples containing fluorides and chlorides. When these samples are melted at high temperatures in an oxygen atmosphere in a high-frequency furnace or pulse furnace, a mixed gas flow containing halogen gases such as hydrogen fluoride and hydrogen chloride is generated. These halogen gases are highly corrosive and can severely damage the expensive optical detection system and gas path components of the analyzer, significantly shortening the instrument's lifespan. Furthermore, their emissions can harm the health of operators and pollute the environment.

[0003] Currently, the common approach to this problem is to install a halogen absorption device before the instrument's detection system. Existing absorption devices often use simple fixed supports to hold several tubes filled with absorbent. Their fixed structure makes them difficult to adjust flexibly according to the instrument's internal space, and installation is inconvenient. Furthermore, when the absorbent becomes saturated and needs replacement, the process is cumbersome, often requiring the entire pipeline to be disassembled, and it is difficult to completely and cleanly remove the used absorbent, easily causing secondary pollution and posing a risk of operator exposure to harmful chemicals. Therefore, there is an urgent need for a halogen absorption device with a flexible structure, easy installation, and convenient and safe absorbent replacement capability. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a halogen absorption device for an analyzer, the specific technical solution of which is as follows:

[0005] A halogen absorption device for an analyzer, the halogen absorption device being connected and disposed between the analyzer's inlet and detector, comprising:

[0006] Main mounting bracket;

[0007] The central shaft bracket is fixedly mounted on the main mounting bracket;

[0008] The movable support assembly is rotatably mounted on the central shaft frame;

[0009] A first absorption tube, a second absorption tube, a third absorption tube, and a fourth absorption tube are respectively mounted on the movable support assembly and connected in series. The inlet end of the first absorption tube is used to connect to the inlet of the analyzer, and the outlet end of the fourth absorption tube is used to connect to the detector.

[0010] The first, second, third, and fourth absorption tubes each have a filling cavity inside; the filling cavities of the first, second, and third absorption tubes are filled with absorbent, and the filling cavity of the fourth absorption tube is filled with desiccant.

[0011] Preferably, the movable support assembly includes a first movable frame and a second movable frame, which are arranged crosswise; a first hinge cylinder is provided in the middle of the first movable frame, and a second hinge cylinder is provided in the middle of the second movable frame, and the first hinge cylinder and the second hinge cylinder are rotatably sleeved on the central shaft frame in sequence; the first absorption tube and the third absorption tube are fixedly installed at both ends of the first movable frame, and the second absorption tube and the fourth absorption tube are fixedly installed at both ends of the second movable frame.

[0012] Preferably, the outer side wall of the central shaft frame is provided with damping texture, and the inner side wall of the first hinge cylinder and / or the second hinge cylinder is provided with a mating structure that matches the damping texture.

[0013] Preferably, the absorbent includes a halogen absorbent and an adsorbent; the absorbent and quartz wool are filled in layers within the filling cavities of the first absorbent tube, the second absorbent tube, and the third absorbent tube.

[0014] Preferably, the filling material in the filling cavity of the first absorption tube, from the inlet end to the outlet end, is as follows: quartz wool, halogen absorbent, quartz wool, adsorbent, quartz wool, halogen absorbent, and quartz wool.

[0015] Preferably, the filling material in the filling cavity of the fourth absorption tube, from the inlet end to the outlet end, is: quartz wool, magnesium perchlorate, and quartz wool.

[0016] Preferably, a discharge assembly is further provided in the filling cavity of the first, second, third, and fourth absorption tubes. An openable sealing cap is provided at one end of the absorption tube away from the discharge assembly. The discharge assembly includes a discharge spring and a discharge push plate. One end of the discharge spring is fixed to the bottom of the filling cavity, and the other end is connected to the discharge push plate. The discharge push plate moves toward the sealing cap under the preload of the discharge spring. An air passage hole is provided on the discharge push plate to allow gas to pass through.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] Firstly, this invention utilizes a support assembly composed of a cross-moving structure, allowing for flexible adjustment of the angle and relative position of multiple absorption tubes. This easily adapts to the internal spatial layout of different analyzers, facilitating installation. The damping texture between the central shaft and the hinged cylinder ensures structural stability after adjustment.

[0019] This invention innovatively incorporates a spring-driven discharge assembly within each absorption tube. When replacing the absorbent, simply opening the sealing cap automatically ejects the waste material. This simple, quick, and clean operation greatly improves maintenance efficiency and reduces health risks for operators.

[0020] This invention employs a multi-stage absorption tube series connection and optimizes the filling sequence of the absorbent. In particular, the multi-layer composite filling structure in the first absorption tube effectively ensures the efficient and complete absorption of halogen gas and reliably protects the downstream analytical detector. Attached Figure Description

[0021] Figure 1 This is a structural block diagram of a halogen absorption device;

[0022] Figure 2 This is a three-dimensional structural diagram of a halogen absorption device;

[0023] Figure 3 This is a side view of a halogen absorption device;

[0024] Figure 4 This is a cross-sectional view of the first absorption tube;

[0025] Figure 5 This is a schematic diagram of the material discharge assembly.

[0026] Reference numerals: Analyzer 1, Detector 2, Main mounting bracket 3, Central shaft bracket 4, Movable support assembly 5, First movable bracket 51, First hinge cylinder 511, Second movable bracket 52, Second hinge cylinder 521, First absorption tube 6, Second absorption tube 7, Third absorption tube 8, Fourth absorption tube 9, Discharge assembly 91, Discharge spring 911, Discharge push plate 912, Air vent 913, Sealing cover 92. Detailed Implementation

[0027] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0028] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0029] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure 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 disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0031] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0032] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0033] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0034] like Figures 1 to 5As shown, a halogen absorption device for an analyzer is disposed between the inlet of the analyzer 1 and the detector 2. The device includes a main mounting frame 3, a central shaft frame 4, a movable support assembly 5, a first absorption tube 6, a second absorption tube 7, a third absorption tube 8, and a fourth absorption tube 9. The central shaft frame 4 is fixedly mounted on the main mounting frame 3 to secure the entire device in a suitable position on the analyzer 1. The movable support assembly 5 is sleeved on the central shaft frame 4 and is composed of a first movable frame 51 and a second movable frame 52, which can rotate independently around the central shaft frame 4.

[0035] The first absorption tube 6, the second absorption tube 7, the third absorption tube 8, and the fourth absorption tube 9 are respectively mounted on the movable support assembly 5. The first absorption tube 6 and the third absorption tube 8 are fixedly mounted at both ends of the first movable frame 51, and the second absorption tube 7 and the fourth absorption tube 9 are fixedly mounted at both ends of the second movable frame 52. By rotating the first movable frame 51 and the second movable frame 52, the relative angle and overall profile of the four absorption tubes can be adjusted, thus flexibly adapting to the internal space of the instrument. The four absorption tubes are connected in series via flexible connecting tubes, forming a complete gas path from the inlet of the first absorption tube 6 to the outlet of the fourth absorption tube 9. The inlet end of the first absorption tube 6 is used to connect to the inlet of the analyzer 1, and the outlet end of the fourth absorption tube 9 is used to connect to the detector 2.

[0036] The outer wall of the central shaft frame 4 is provided with damping grooves, and the inner walls of the first hinge cylinder 511 of the first movable frame 51 and the second hinge cylinder 521 of the second movable frame 52 are provided with a mating structure that matches the damping grooves. When the movable frame is rotated, a certain force needs to be applied to overcome this frictional damping. Once adjusted to the correct position, the movable frame can remain stable under the action of damping and will not shake arbitrarily, thus ensuring the structural stability of the entire absorption device.

[0037] The first absorption tube 6, the second absorption tube 7, the third absorption tube 8, and the fourth absorption tube 9 all have internal filling cavities, and all are quartz tubes or hard glass tubes. The filling cavities of the first absorption tube 6, the second absorption tube 7, and the third absorption tube 8 are filled with an absorbent for absorbing halogens. The absorbent includes a halogen absorbent and an adsorbent, and is layered with quartz wool. Specifically, in the filling cavity of the first absorption tube 6, the filling material from the inlet end to the outlet end is, in sequence: quartz wool, halogen absorbent, quartz wool, adsorbent, quartz wool, halogen absorbent, and quartz wool. This multi-layered composite filling structure ensures that the halogen gas is fully and thoroughly absorbed. The filling cavity of the fourth absorption tube 9 is filled with a desiccant for absorbing moisture, and the filling material from the inlet end to the outlet end is, in sequence: quartz wool, magnesium perchlorate, and quartz wool.

[0038] Each of the first absorption tube 6, the second absorption tube 7, the third absorption tube 8, and the fourth absorption tube 9 has a discharge assembly 91 installed in its filling cavity. An openable sealing cap 92 is provided at the end of each absorption tube away from the discharge assembly 91. The discharge assembly 91 includes a discharge spring 911 and a discharge push plate 912. One end of the discharge spring 911 is fixed to the bottom of the filling cavity, and the other end is connected to the discharge push plate 912. The discharge push plate 912 moves towards the sealing cap 92 under the preload of the discharge spring 911, and has an air passage 913 that allows gas to pass through.

[0039] During initial filling of the absorbent, the sealing cap 92 is closed, and the discharge pusher plate 912 is compressed to the bottom of the filling chamber. Operators fill the chamber sequentially with quartz wool, various absorbents, etc., from one end of the sealing cap 92. When replacement is needed, the sealing cap 92 is unscrewed, and the discharge spring 911 immediately pushes the discharge pusher plate 912 towards the open end, smoothly and completely discharging all used absorbent from the chamber into the designated waste container. This design makes maintenance simple, quick, and clean, and reduces direct contact between personnel and waste chemicals.

[0040] In use, connect the inlet of this device to the sample gas inlet of the instrument, and the outlet to detector 2. The halogen-containing mixed gas flow generated by sample melting passes sequentially through the first, second, and third absorption tubes 8, where the halogen gas is effectively absorbed. After moisture is removed by the fourth absorption tube 9, the clean and dry gas enters detector 2 for analysis.

[0041] In use, connect the inlet of this device to the sample gas inlet of the instrument, and the outlet to detector 2. The halogen-containing mixed gas flow generated by sample melting passes sequentially through the first, second, and third absorption tubes 8, where the halogen gas is effectively absorbed. After moisture is removed by the fourth absorption tube 9, the clean and dry gas enters detector 2 for analysis.

[0042] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A halogen absorption device for an analyzer, the halogen absorption device being connected between the inlet of the analyzer (1) and the detector (2), characterized in that, include: Main mounting bracket (3); The central shaft bracket (4) is fixedly installed on the main mounting bracket (3); The movable support assembly (5) is rotatably mounted on the central shaft frame (4); The first absorption tube (6), the second absorption tube (7), the third absorption tube (8), and the fourth absorption tube (9) are respectively installed on the movable support assembly (5) and connected in series. The inlet end of the first absorption tube (6) is used to connect to the inlet of the analyzer (1), and the outlet end of the fourth absorption tube (9) is used to connect to the detector (2). The first absorption tube (6), the second absorption tube (7), the third absorption tube (8) and the fourth absorption tube (9) are all provided with filling cavities; the filling cavities of the first absorption tube (6), the second absorption tube (7) and the third absorption tube (8) are filled with absorbent, and the filling cavity of the fourth absorption tube (9) is filled with desiccant.

2. The halogen absorption device for an analyzer according to claim 1, characterized by: The movable support assembly (5) includes a first movable frame (51) and a second movable frame (52), which are arranged crosswise. The first movable frame (51) has a first hinge cylinder (511) in the middle, and the second movable frame (52) has a second hinge cylinder (521) in the middle. The first hinge cylinder (511) and the second hinge cylinder (521) are sequentially rotatably mounted on the central shaft frame (4). The first absorption tube (6) and the third absorption tube (8) are fixedly installed at both ends of the first movable frame (51), and the second absorption tube (7) and the fourth absorption tube (9) are fixedly installed at both ends of the second movable frame (52).

3. The halogen absorption device for an analyzer according to claim 2, characterized in that: The outer side wall of the central shaft frame (4) is provided with damping texture, and the inner side wall of the first hinge cylinder (511) and / or the second hinge cylinder (521) is provided with a mating structure that matches the damping texture.

4. The halogen absorption device for an analyzer according to claim 1, characterized by: The absorbent includes halogen absorbent and adsorbent; the absorbent and quartz wool are filled in layers in the filling cavities of the first absorbent tube (6), the second absorbent tube (7), and the third absorbent tube (8).

5. The halogen absorption device for an analyzer according to claim 4, characterized in that: The filling material in the first absorption tube (6) from the inlet end to the outlet end is as follows: quartz wool, halogen absorbent, quartz wool, adsorbent, quartz wool, halogen absorbent, and quartz wool.

6. The halogen absorption device for an analyzer according to claim 1, characterized in that: The filling material in the filling cavity of the fourth absorption tube (9) is, from the inlet end to the outlet end, quartz wool, magnesium perchlorate, and quartz wool.

7. The halogen absorption device for an analyzer according to any one of claims 1 to 6, characterized in that: The first absorption tube (6), the second absorption tube (7), the third absorption tube (8) and the fourth absorption tube (9) are also provided with a discharge assembly (91). The end of the absorption tube away from the discharge assembly (91) is provided with an openable sealing cap (92). The discharge assembly (91) includes a discharge spring (911) and a discharge push plate (912). One end of the discharge spring (911) is fixed to the bottom of the filling cavity and the other end is connected to the discharge push plate (912). The discharge push plate (912) moves toward the sealing cap (92) under the preload of the discharge spring (911). The discharge push plate (912) is provided with an air passage hole (913) that allows gas to pass through.

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