Drying tube for sulfur determinator

By setting a bottom hole and an inner sealing ring groove in the drying tube body of the sulfur analyzer, combined with a sealing and pushing mechanism, the problem of cumbersome operation of replacing and cleaning the drying tube is solved, the process is simplified and the cleanliness is improved, and the operating efficiency is significantly improved.

CN224404793UActive Publication Date: 2026-06-26CCIC NORTHEAST (LIAONING) METROLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCIC NORTHEAST (LIAONING) METROLOGY CO LTD
Filing Date
2025-07-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Replacing the desiccant and degreased cotton in the drying tube of the sulfur analyzer is cumbersome, especially since the lower section of degreased cotton is difficult to hook out. In addition, the high gas flow rate increases the friction of desiccant particles, causing them to adhere to the tube wall and making cleaning inconvenient.

Method used

A bottom hole and an inner sealing ring groove are set in the body of the drying tube. Combined with the sealing and pushing mechanism, a long metal rod is used to push out the desiccant and degreased cotton. With the rubber pressure ring and ring collection groove design, the residue on the tube wall is scraped and collected in the ring collection groove, which simplifies the operation process and ensures cleanliness.

Benefits of technology

It significantly simplifies the replacement and cleaning process of the drying tube, improves operational efficiency, ensures the cleanliness of the drying tube, and avoids the cumbersome cleaning steps and tube wall residues in traditional methods.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224404793U_ABST
Patent Text Reader

Abstract

The utility model discloses a drying pipe for sulfurimeter, including drying pipe body, the two groups of pipe body of drying pipe body integrative have the intercommunication's connecting pipe between, still include inner sealing ring groove and seal push mechanism, set up bottom hole and inner sealing ring groove for assembling seal push mechanism at the drying pipe body of sulfurimeter, when replacing drying agent and defatting cotton, with long metal pole inserts from bottom hole upward, can easily push out seal push mechanism, drying agent and defatting cotton, compared with the tedious operation that traditional drying pipe needs to clean up the defatting cotton of upper section and leads out drying agent, with long hook body hook and pull down section defatting cotton, greatly simplifies the process, significantly improves the operation efficiency, and the rubber pressure ring of seal push mechanism has the design of ring muscle and ring collection groove, in the process of pushing drying agent and defatting cotton and leaving drying pipe body, can effectively scrape the drying agent residue of pipe wall residue, the drying agent residue in drying pipe body is cleaned conveniently.
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Description

Technical Field

[0001] This utility model relates to the technical field of sulfur analyzer accessories, and in particular to a drying tube for a sulfur analyzer. Background Technology

[0002] A sulfur analyzer is an instrument used to determine the sulfur content in a substance. It consists of an air purification device, controller, combustion furnace, electrolytic cell, and stirrer, and is mainly used to determine the total sulfur content in coal, steel, and various minerals. During operation, the gas produced by burning the sample may contain moisture. Therefore, a drying tube is installed in the gas passage of the sulfur analyzer. The desiccant filled in the drying tube (such as anhydrous calcium chloride, silica gel, etc.) can effectively absorb the moisture in the gas, ensuring that the gas entering the detection component is dry.

[0003] Currently, when filling the drying tube of a sulfur analyzer with color-changing silica gel desiccant, two sections of degreased cotton are inserted into the drying tube, and then color-changing silica gel is filled in the space between the two sections. When the degreased cotton and color-changing silica gel need to be replaced, it is usually necessary to clean the upper section of degreased cotton to remove the desiccant. Then, the testing personnel need to use a long hook to pull out the lower section of degreased cotton in the drying tube. Because the lower section of degreased cotton is packed deeper and is not easy to hook out, if the gas flow rate in the drying tube is too high, it will generate a large impact force on the silica gel desiccant in the drying tube, increasing the friction between the desiccant particles. This causes some fine particles to be carried up by the airflow and adhere to the tube wall. The long tube wall also requires a long rod wrapped with cleaning cotton for cleaning, making the operation of the drying tube inconvenient when replacing the desiccant. To address this, we propose a drying tube for a sulfur analyzer. Utility Model Content

[0004] The main objective of this invention is to provide a drying tube for a sulfur analyzer. The drying tube body features a bottom hole and an inner sealing ring groove for assembling a sealing and pushing mechanism. When replacing the desiccant and degreased cotton, a long metal rod is inserted upwards from the bottom hole to easily push out the sealing and pushing mechanism, desiccant, and degreased cotton. Compared to the cumbersome operation of traditional drying tubes, which requires cleaning the upper section of degreased cotton to remove the desiccant and using a long hook to pull out the lower section of degreased cotton, this significantly simplifies the process and improves operational efficiency. Furthermore, the rubber pressure ring of the sealing and pushing mechanism has a pair of ring ribs and a ring collection groove design. During the process of pushing the desiccant and degreased cotton away from the drying tube body, it can effectively scrape and collect the desiccant residue remaining on the tube wall and store it in the ring collection groove, facilitating the cleaning of desiccant residue inside the drying tube body and ensuring the cleanliness of the drying tube. This effectively solves the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A drying tube for a sulfur analyzer includes a drying tube body, with an integrally formed gas connecting pipe between two sets of tubes for interconnection. It also includes an inner sealing ring groove and a sealing mechanism. The sealing mechanism includes a reverse-locking sealing ring, a rubber plug, a plug ring, a rubber pressure ring, a glass cover plate, and a tapered foot. A bottom hole for mounting the rubber plug is provided at the bottom of the drying tube body, and a plug ring protrudes from the outer side of the rubber plug to abut against the bottom hole. A recessed section within the drying tube body outside the bottom hole provides useful... The inner sealing groove of the snap-on sealing ring is fitted with a rubber plug that passes through the middle of the snap-on sealing ring. The rubber plug is bonded and fixed to the lower ring surface of the rubber pressure ring, and a glass cover plate is bonded to the top of the rubber pressure ring. The lower surface of the glass cover plate is integrally formed with a tapered foot, and the tapered foot passes through the rubber pressure ring and is fitted with the rubber plug. The vertical ring wall of the rubber pressure ring is recessed with a ring-gathering groove, and the block height of the rubber pressure ring and the glass cover plate after being fitted into the drying tube body is less than the tube height of the connecting pipe.

[0007] Furthermore, the groove cavity of the annular receiving groove is centrally located outside the vertical ring wall of the rubber pressure ring, and the rubber pressure ring has symmetrically raised ring ribs near the ring body of the annular receiving groove.

[0008] By adopting the above-mentioned preferred technical solution, the rubber pressure ring cooperates with the upper set of ring bodies of the ring rib to scrape and collect the desiccant residue remaining in the body of the drying tube. The scraped desiccant residue can be collected by the ring collection groove. Then, the lower set of ring bodies of the ring rib can abut against the inner wall of the body of the drying tube to prevent the desiccant residue in the ring collection groove from overflowing downwards.

[0009] Furthermore, the platform of the tapered foot gradually expands downward from below the glass cover plate, and the tapered foot is inserted downward into the tapered groove opened at the top of the rubber plug.

[0010] By adopting the above-mentioned preferred technical solution, the tapered foot can use its own tapered body to open the tapered groove of the rubber plug for tight clamping, so that the tapered foot and the rubber plug maintain a relatively firm clamping connection.

[0011] Furthermore, the height of the vertical column of the rubber plug is the same as the cavity depth of the bottom hole, and the diameter of the rubber plug is the same as the diameter of the annular hole of the reverse sealing ring.

[0012] By adopting the above-mentioned preferred technical solution, the vertical column of the rubber plug can be inserted into the bottom hole for sealing, and the column of the rubber plug can be tightly fitted into the annular hole of the reverse-locking sealing ring.

[0013] Furthermore, the flat ring of the reverse-fastening ring is bonded to the bottom of the rubber pressure ring, and a vertical ring protrudes from the bottom of the flat ring of the reverse-fastening ring for engaging with the inner sealing ring groove.

[0014] By adopting the above-mentioned preferred technical solution, after the reverse sealing ring is bonded below the rubber pressure ring, the vertical ring of the reverse sealing ring can be inserted into the inner sealing ring groove, thereby enhancing the sealing performance between the rubber pressure ring and the drying tube body.

[0015] Furthermore, the diameter of the glass cover plate is the same as the diameter of the inner cavity of the drying tube body;

[0016] By adopting the above-mentioned preferred technical solution, the glass cover can press a rubber pressure ring and a reverse sealing ring inside the drying tube body, thereby tightly sealing it above the bottom hole of the drying tube body.

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

[0018] This utility model provides a bottom hole and an inner sealing ring groove in the drying tube body of the sulfur analyzer for assembling the sealing and pushing mechanism. When replacing the desiccant and degreased cotton, a long metal rod can be inserted upwards from the bottom hole to easily push out the sealing and pushing mechanism, desiccant, and degreased cotton. Compared with the cumbersome operation of traditional drying tubes, which requires cleaning the upper section of degreased cotton to remove the desiccant and using a long hook to pull out the lower section of degreased cotton, this invention greatly simplifies the process and significantly improves the operating efficiency.

[0019] Furthermore, the rubber pressure ring of the sealing and pushing mechanism has a pair of ring ribs and ring collection grooves. During the process of pushing the desiccant and degreased cotton away from the drying tube body, it can effectively scrape and collect the desiccant residue remaining on the tube wall and store it in the ring collection groove, which facilitates the cleaning of desiccant residue inside the drying tube body and ensures the cleanliness of the drying tube. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a drying tube for a sulfur analyzer according to this utility model.

[0021] Figure 2 This is a schematic diagram showing the separation of the sealing and pushing mechanism and the drying tube body of a sulfur analyzer according to this utility model.

[0022] Figure 3 This is a cross-sectional view of the drying tube body of a sulfur analyzer according to the present invention.

[0023] Figure 4 This is an exploded view of the sealing and pushing mechanism of a drying tube for a sulfur analyzer according to this utility model.

[0024] Figure 5 This is a schematic diagram of the tapered foot structure of a drying tube for a sulfur analyzer according to this utility model.

[0025] Figure 6 This is a schematic diagram of the reverse-locking ring structure of a drying tube for a sulfur analyzer according to this utility model.

[0026] In the diagram: 1. Drying tube body; 2. Connecting pipe; 3. Inner sealing ring groove; 4. Bottom hole; 5. Sealing mechanism; 6. Reverse sealing ring; 7. Rubber plug; 8. Plug ring; 9. Rubber pressure ring; 10. Glass cover plate; 11. Tapered platform foot; 12. Ring groove; 13. Ring rib. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figure 1-6 As shown, a drying tube for a sulfur analyzer includes a drying tube body 1. A connecting pipe 2 for interconnection is integrally formed between two sets of tubes of the drying tube body 1. It also includes an inner sealing ring groove 3 and a sealing mechanism 5. The sealing mechanism 5 includes a reverse-locking sealing ring 6, a rubber plug 7, a plug ring 8, a rubber pressure ring 9, a glass cover plate 10, and a tapered foot 11. A bottom hole 4 for mounting the rubber plug 7 is provided through the bottom of the drying tube body 1. A plug ring 8 protrudes from the outer side of the rubber plug 7 to abut against the bottom hole 4. A recessed section is provided inside the drying tube body 1 outside the bottom hole 4 for... The inner sealing groove 3 of the snap-on sealing ring 6 is fitted, and a rubber plug 7 passes through the middle of the snap-on sealing ring 6. The rubber plug 7 is bonded and fixed to the lower ring surface of the rubber pressure ring 9, and a glass cover plate 10 is bonded to the top of the rubber pressure ring 9. The lower plate surface of the glass cover plate 10 is integrally formed with a tapered foot 11, and the tapered foot 11 passes through the rubber pressure ring 9 and is fitted with the rubber plug 7. The vertical ring wall of the rubber pressure ring 9 is recessed and has a ring receiving groove 12. The height of the block after the rubber pressure ring 9 and the glass cover plate 10 are fitted in the drying tube body 1 is less than the height of the connecting tube 2.

[0029] The groove cavity of the annular groove 12 is centrally located outside the vertical ring wall of the rubber pressure ring 9, and the rubber pressure ring 9 has symmetrically protruding ring ribs 13 near the ring body of the annular groove 12.

[0030] By adopting the above-mentioned preferred technical solution, the rubber pressure ring 9 cooperates with the upper set of rings of the ring rib 13 to scrape the desiccant residue remaining in the drying tube body 1, and the scraped desiccant residue can be collected by the ring collection groove 12. Then, the lower set of rings of the ring rib 13 can abut against the inner wall of the drying tube body 1 to prevent the desiccant residue in the ring collection groove 12 from overflowing downwards.

[0031] The tapered foot 11 gradually expands downward from below the glass cover plate 10, and the tapered foot 11 is inserted downward into the tapered groove opened at the top of the rubber plug 7.

[0032] By adopting the above-mentioned preferred technical solution, the tapered foot 11 can use its own tapered body to open the tapered groove of the rubber plug 7 for tight clamping, so that the tapered foot 11 and the rubber plug 7 maintain a relatively firm clamping connection.

[0033] The height of the vertical column of the rubber plug 7 is the same as the cavity depth of the bottom hole 4, and the diameter of the column of the rubber plug 7 is the same as the diameter of the annular hole of the reverse sealing ring 6.

[0034] By adopting the above-mentioned preferred technical solution, the vertical column of the rubber plug 7 can be inserted and sealed at the bottom hole 4, and the column of the rubber plug 7 can be tightly fitted in the annular hole of the reverse sealing ring 6.

[0035] The flat ring of the reverse sealing ring 6 is bonded to the bottom of the rubber pressure ring 9, and a vertical ring for engaging the inner sealing ring groove 3 protrudes from the bottom of the flat ring of the reverse sealing ring 6.

[0036] By adopting the above-mentioned preferred technical solution, after the reverse sealing ring 6 is bonded below the rubber pressure ring 9, the vertical ring body of the reverse sealing ring 6 can be inserted into the inner sealing ring groove 3, thereby enhancing the sealing between the rubber pressure ring 9 and the drying tube body 1.

[0037] Wherein, the diameter of the glass cover plate 10 is the same as the diameter of the inner cavity of the drying tube body 1;

[0038] By adopting the above-mentioned preferred technical solution, the glass cover plate 10 can press the rubber pressure ring 9 and the reverse sealing ring 6 inside the drying tube body 1, thereby tightly sealing it above the bottom hole 4 of the drying tube body 1.

[0039] It should be noted that this utility model is a drying tube for a sulfur analyzer. A bottom hole 4 and an inner sealing ring groove 3 are provided at the body 1 of the drying tube for the sulfur analyzer. Subsequently, the glass cover plate 10 of the sealing and pushing mechanism 5 can be pressed and adhered above the rubber pressure ring 9. Below the rubber pressure ring 9, a reverse-locking sealing ring 6 and a rubber plug 7 inserted into its ring hole can be adhered, allowing the tapered foot 11 below the glass cover plate 10 to be inserted into the rubber plug 7 for a snap-fit ​​connection. Then, the entire sealing and pushing mechanism 5 can be inserted into the tube from the top opening of the drying tube body 1, allowing... Push the glass cover plate 10 down with the long rod, so that the reverse sealing ring 6 below the rubber pressure ring 9 is engaged in the inner sealing ring groove 3 for sealing. At the same time, the rubber plug 7 with the plug ring 8 is engaged in the bottom hole 4 for multi-stage internal contact bottom sealing. Then, degreased cotton can be inserted into the drying tube body 1 above the glass cover plate 10, and color-changing silica gel desiccant can be filled in. Then, degreased cotton is inserted into the drying tube body 1 above the desiccant for filtration. Afterward, the drying tube body 1 can be normally engaged in the drying tube installation position of the sulfur analyzer for locking, and the gas... The tube body plug is installed inside the upper opening of the drying tube. When the color-changing silicone grease desiccant needs to be replaced after long-term use, the drying tube body 1 can be removed from the sulfur analyzer using the existing drying tube disassembly method. Then, a long metal rod longer than the drying tube body 1 is inserted upward into the drying tube body 1 at the bottom hole 4. As the long metal rod is continuously pushed, the rubber plug 7 leaves the bottom hole 4, and at the same time, the reverse sealing ring 6 leaves the inner sealing ring groove 3. During the process of the rubber pressure ring 9 rising away from the drying tube body 1, the rubber pressure ring 9 cooperates with the ring rib 13. The upper set of rings scrapes away the desiccant residue inside the drying tube body 1, and the scraped desiccant residue can be collected by the ring collection groove 12. Then, the next set of rings of the ring rib 13 can abut against the inner wall of the drying tube body 1 to prevent the desiccant residue in the ring collection groove 12 from overflowing downwards. As the rubber pressure ring 9 completely leaves the drying tube body 1, the rubber pressure ring 9 can be sent to the cleaning pool for manual cleaning. Then, the sealing and pushing mechanism 5 can be reassembled according to the above steps and filled with color-changing silica gel desiccant and degreased cotton.

[0040] It should be noted that this utility model is a drying tube for a sulfur analyzer. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drying tube for a sulfur analyzer, comprising a drying tube body (1), wherein a connecting pipe (2) for interconnection is integrally formed between two sets of tubes of the drying tube body (1), characterized in that: It also includes an inner sealing ring groove (3) and a sealing and pushing mechanism (5). The sealing and pushing mechanism (5) includes a reverse-locking sealing ring (6), a rubber plug (7), a plug ring (8), a rubber pressure ring (9), a glass cover plate (10), and a tapered foot (11). The bottom of the drying tube body (1) is provided with a bottom hole (4) for mounting the rubber plug (7), and the outer side of the rubber plug (7) has a plug ring (8) for abutting the bottom hole (4). The drying tube body (1) outside the bottom hole (4) has an inner sealing ring groove (3) for mounting the reverse-locking sealing ring (6), and the middle of the reverse-locking sealing ring (6) is provided with a rubber plug (7). A rubber plug (7) passes through the part, and the rubber plug (7) and the reverse sealing ring (6) are bonded and fixed on the lower ring surface of the rubber pressure ring (9). A glass cover plate (10) is bonded to the top of the rubber pressure ring (9). The lower plate surface of the glass cover plate (10) is integrally formed with a tapered foot (11), and the tapered foot (11) passes through the rubber pressure ring (9) and is engaged with the rubber plug (7). The vertical ring wall of the rubber pressure ring (9) is recessed and has a ring receiving groove (12). The height of the block after the rubber pressure ring (9) and the glass cover plate (10) are engaged in the drying tube body (1) is less than the height of the air connecting pipe (2).

2. A drying tube for a sulfur analyzer according to claim 1, characterized in that: The groove cavity of the annular groove (12) is centrally located outside the vertical ring wall of the rubber pressure ring (9), and the rubber pressure ring (9) has symmetrically raised ring ribs (13) near the ring body of the annular groove (12).

3. A drying tube for a sulfur analyzer according to claim 1, characterized in that: The platform of the tapered foot (11) gradually expands downward from below the glass cover plate (10), and the tapered foot (11) is inserted downward into the tapered groove opened at the top of the rubber plug (7).

4. A drying tube for a sulfur analyzer according to claim 1, characterized in that: The height of the vertical column of the rubber plug (7) is the same as the depth of the cavity of the bottom hole (4), and the diameter of the column of the rubber plug (7) is the same as the diameter of the annular hole of the reverse sealing ring (6).

5. A drying tube for a sulfur analyzer according to claim 1, characterized in that: The flat ring of the reverse-locking ring (6) is bonded to the bottom of the rubber pressure ring (9), and the flat ring of the reverse-locking ring (6) has a vertical ring protruding below it for engaging the inner sealing ring groove (3).

6. A drying tube for a sulfur analyzer according to claim 1, characterized in that: The diameter of the glass cover plate (10) is the same as the diameter of the inner cavity of the drying tube body (1).