CN216125656U

CN216125656U - Improved karuss tube assembly

Info

Publication number: CN216125656U
Application number: CN202121639157.0U
Authority: CN
Inventors: 王大鹏
Original assignee: Institute of Geochemistry of CAS
Current assignee: Institute of Geochemistry of CAS
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-03-25
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses an improved Carlos pipe assembly, which belongs to the field of laboratory chemical reaction vessels and comprises a pipe body, a pipe plug column, a sleeve and a sleeve cover, wherein an annular flange is arranged at the opening part of the pipe body, and openings with arc-shaped sections are arranged on the annular flange and the opening part of the pipe body; the pipe plug column comprises a column body and a sealing flange, and an arc-shaped sealing part corresponding to the opening is arranged between the column body and the sealing flange; the sleeve is provided with an inner cavity corresponding to the pipe body, and the upper part of the sleeve is provided with an external thread; the inner thread corresponding to the outer thread is arranged in the sleeve cover, and the sleeve is of a two-section split structure. The utility model has convenient assembly and disassembly, is convenient for cleaning the pipe body and other accessories, is convenient for sealing the pipe body under the conditions of medium temperature and high pressure in the sample digestion experiment process, can well prevent the sample from being polluted, and can be repeatedly used, thereby reducing the experiment cost.

Description

Improved karuss tube assembly

Technical Field

The utility model relates to the field of laboratory chemical reaction vessels, in particular to an improved Carlos tube assembly.

Background

In the field of isotope dating analysis, a karos tube sample dissolving method is widely used for dissolving samples such as mantle rock, molybdenite, sulfide, volcanic rock, sediment and the like, a karos (Carius) tube is indispensable equipment for determining Os content and Re-Os isotope dating experiments by the karos tube sample dissolving method, the traditional karos tube comprises a tube body, a plug and a stainless steel end cover, threads are arranged at the opening of the tube body, the sample and a reagent are added into the tube body when the karos tube is used, then the plug is plugged, the tube body and the plug are fastened by the end cover to achieve a sealing effect, and finally the tube body is placed into a heating device.

Because the karos pipe needs to keep good leakproofness, the body and the stopper post are fixed with the end cover to traditional karos pipe, therefore be equipped with thin neck at the body oral area, and this kind of thin neck structure is when wasing, is difficult for wasing the body inside, especially thin neck part, because wash not in place or wash unclean, when next use, pollutes the sample easily, leads to the test result inaccurate. In addition, the metal end cover is also easily corroded by acid mist in the sample dissolving process, and part of rusty substances fall to pollute the sample, so that the test result is possibly inaccurate. It is therefore desirable to provide a karuss tube assembly that is easy to clean and not prone to contamination to solve the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an improved karuss tube assembly which is convenient to clean, low in pollution and good in sealing performance and aims at overcoming the defects of the prior art.

In order to solve the technical problems, the technical scheme of the utility model is as follows: an improved Carlos tube assembly comprises a tube body, a tube plug column, a sleeve and a sleeve cover, wherein an annular flange is arranged at the opening of the tube body, and openings with arc-shaped sections are arranged at the annular flange and the opening of the tube body; the pipe plug column comprises a column body and a sealing flange, and an arc-shaped sealing part corresponding to the opening is arranged between the column body and the sealing flange; the sleeve is provided with an inner cavity corresponding to the pipe body, and the upper part of the sleeve is provided with an external thread; the sleeve cover is internally provided with an internal thread corresponding to the external thread; the sleeve is of a two-section split structure.

Preferably, the plug is made of teflon.

Preferably, the sleeve and the sleeve cover are both made of Teflon materials.

Preferably, the explosion-proof device further comprises an explosion-proof sleeve, a left end cover and a right end cover, wherein a left interface external thread and a right interface external thread are respectively arranged at two ends of the explosion-proof sleeve; the left end cover is provided with a left internal thread corresponding to the left interface external thread; the right end cover is provided with a right internal thread corresponding to the right interface external thread.

Preferably, a left gasket and a right gasket are respectively arranged in the left end cover and the right end cover.

Preferably, the left gasket and the right gasket are both made of Teflon materials.

Preferably, the inner wall of the explosion-proof sleeve is also provided with a Teflon coating.

Preferably, the explosion-proof sleeve, the left end cover and the right end cover are all made of stainless steel.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the annular flange is arranged at the mouth part of the tube body, and the annular flange and the mouth part of the tube body are provided with the openings with the arc-shaped sections, so that compared with the traditional Carlos tube with a thin neck, the cleaning of the tube body is more convenient by changing the opening structure of the tube body, the situation that the cleaning in the tube body is not in place is avoided, and the possibility of inaccurate data caused by sample pollution is reduced;

2. the pipe plug column is designed to comprise the column body and the sealing flange, the arc-shaped sealing part corresponding to the opening is arranged between the column body and the sealing flange, and the pipe plug column is matched with the pipe body, so that the pipe plug column can be well sealed, and the experiment is favorably carried out;

3. by additionally arranging the sleeve and the sleeve cover, on one hand, the Teflon sleeve and sleeve cover structure replaces a pipe body and a metal end cover structure, so that the system can be ensured to be cleaner; on the other hand, by utilizing the threaded connection between the sleeve cover and the sleeve, the plug can be compressed to achieve a sealing effect in the heating process of the experiment, the internal and external pressure-bearing conditions of the pipe body can be balanced, the phenomenon that the pipe plug is punched out or burst due to overhigh internal pressure of the pipe body in the experiment process is avoided, and the normal operation of the experiment is further ensured;

4. the explosion-proof sleeve is in close contact with the Teflon sleeve, plays a role of a high-pressure kettle in the experimental process, and further protects the Carlos tube from cracking in the temperature rising process; even if the karuss tube is cracked in the temperature rise process, the explosion-proof tube can prevent explosion energy from leaking to protect other samples and equipment from being damaged, and the risk of experimental accidents is reduced.

Drawings

FIG. 1 is a schematic structural view of an improved Carlos tube assembly of the present invention;

FIG. 2 is a schematic view of a pipe body and a plug according to the present invention;

FIG. 3 is a schematic view of the structure of the present invention with the sleeve and the cover;

FIG. 4 is a schematic structural view of the explosion-proof sleeve, the left end cover and the right end cover in cooperation.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1 to 3, the improved karuss tube assembly of the present invention comprises a tube body 1, a plug 2, a sleeve 3 and a sleeve cover 4, wherein the material of the tube body 1 is the same as that of the existing device, an annular flange 11 is disposed at the mouth of the tube body 1, and an opening 12 with an arc-shaped cross section is disposed at the mouth of the annular flange 11 and the tube body 1; the pipe plug column 2 comprises a column body 21 and a sealing flange 22, and an arc-shaped sealing part 23 corresponding to the opening 12 is arranged between the column body 21 and the sealing flange 22; the sleeve 3 is provided with an inner cavity 31 corresponding to the tube body 1, and the upper part of the sleeve 3 is provided with an external thread 32; an internal thread corresponding to the external thread 32 is arranged in the sleeve cover 4; the sleeve 3 is of a two-section split structure, namely the sleeve 3 is provided with two sections of pipe sleeves which are not connected.

In order to avoid acid corrosion of each component, the plug 2 of the present embodiment is made of teflon, and the sleeve 3 and the sleeve cover 4 are both made of teflon.

The improved karuss tube assembly of this embodiment is used as follows: the method comprises the steps of putting a sample to be tested and a reagent (acid) into a tube body 1 in advance, then sealing the opening of the tube body 1 by a tube plug column 2, then inserting the tube body 1 into a sleeve 3, then sealing the sleeve 3 by a sleeve cover 4, putting the whole tube body 1 and the sleeve 3 into an oven, heating for a certain time at a constant temperature lower than 145 ℃, taking out the tube body 1 and the sleeve 3 after the heating is finished, taking out the sample for test analysis, and cleaning the tube body 1, the tube plug 2, the sleeve 3 and the sleeve cover 4 so as to be used next time.

Example 2

As shown in fig. 1 to 4, different from embodiment 1, the improved karuss tube assembly of the present invention further includes an explosion-proof sleeve 5, a left end cap 6 and a right end cap 7, wherein both ends of the explosion-proof sleeve 5 are respectively provided with a left interface external thread 51 and a right interface external thread 52; the left end cover 6 is provided with a left internal thread corresponding to the left interface external thread 51; the right end cover 7 is provided with a right internal thread corresponding to the right interface external thread 52. When the explosion-proof sleeve is used, the pipe body 1 and the sleeve 3 in the embodiment 1 are placed into the explosion-proof sleeve 5, the left end cover 6 and the right end cover 7 are screwed down to completely seal the pipe body 1 and the sleeve 3 in the explosion-proof sleeve 5, then the whole body is placed into an oven to be heated, the constant temperature is lower than 185 ℃ for a certain time, and after the heating is finished, the whole body is taken out to perform subsequent experiment steps.

This embodiment increases explosion-proof sleeve 5, left end lid 6 and right end lid 7, can avoid body 1 to burst because of interior pressure is too big, lead to the acidizing fluid to flow and corrode the oven, the explosion-proof sleeve 5 of this embodiment, left end lid 6 and right end lid 7 are stainless steel, even body 1 bursts, the instantaneous energy protection sample that the explosion can be pinned to the explosion of explosion and the oven is not damaged, the acidizing fluid that flows can with explosion-proof sleeve 5, left end lid 6 and right end lid 7 take place the reaction and consume, avoid leading to the acidizing fluid to flow out because body 1 bursts and corrode the oven.

In order to avoid the acid escaping from the corrosion equipment in a gaseous state in the heating process, a left gasket 61 and a right gasket 71 are respectively arranged in the left end cover 6 and the right end cover 7, and the left gasket 61 and the right gasket 71 are both made of Teflon materials and have the function of acid corrosion resistance.

Of course, in order to avoid acid corrosion of the explosion-proof sleeve 5, the left end cover 6 and the right end cover 7, a teflon coating can be sprayed on the inner wall of the explosion-proof sleeve 5.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model. Finally, it should be noted that the contents not described in detail in the specification belong to the prior art known to those skilled in the art, and those skilled in the art can implement the contents without creative efforts, so that the details are not described herein.

Claims

1. An improved Carlos tube assembly comprises a tube body (1) and a tube plug column (2), and is characterized by further comprising a sleeve (3) and a sleeve cover (4), wherein an annular flange (11) is arranged at the opening of the tube body (1), and openings (12) with arc-shaped sections are formed in the annular flange (11) and the opening of the tube body (1); the pipe plug column (2) comprises a column body (21) and a sealing flange (22), and an arc-shaped sealing part (23) corresponding to the opening (12) is arranged between the column body (21) and the sealing flange (22); the sleeve (3) is provided with an inner cavity (31) corresponding to the pipe body (1), and the upper part of the sleeve (3) is provided with an external thread (32); the sleeve cover (4) is internally provided with an internal thread corresponding to the external thread (32); the sleeve (3) is of a two-section split structure.

2. The improved carlos tube assembly according to claim 1, wherein the plug stem (2) is teflon.

3. The improved carlos tube assembly according to claim 1, wherein the sleeve (3) and the sleeve cap (4) are both of teflon.

4. The improved karuss tube assembly as claimed in claim 1, further comprising an explosion-proof sleeve (5), a left end cap (6) and a right end cap (7), wherein both ends of the explosion-proof sleeve (5) are respectively provided with a left interface external thread (51) and a right interface external thread (52); the left end cover (6) is provided with a left internal thread corresponding to the left interface external thread (51); the right end cover (7) is provided with a right internal thread corresponding to the right interface external thread (52).

5. The improved karuss tube assembly of claim 4, wherein the left end cap (6) and the right end cap (7) have a left gasket (61) and a right gasket (71) disposed therein, respectively.

6. The improved karuss tube assembly of claim 5, wherein the left and right spacers (61, 71) are each made of Teflon.

7. The improved karuss tube assembly according to any one of claims 4 to 6, wherein the inner wall of the explosion proof sleeve (5) is further provided with a Teflon coating.

8. The improved karuss tube assembly of any one of claims 4 to 6, wherein the explosion proof sleeve (5), the left end cap (6) and the right end cap (7) are all stainless steel.