Liquid argon storage device convenient to sample

Abstract

The utility model provides a liquid argon storage device convenient to sample, and relates to industrial gas storage equipment, the liquid argon storage device comprises a shell and a sealing structure, a conveying pipe is processed in the shell, a rubber floating pad is attached to one end of the bottom of the conveying pipe, the sealing structure comprises a first sealing piece and a second sealing piece, a sampling notch is formed in one end of the second sealing piece, and a sampling groove is formed in the other end of the second sealing piece; a second fixing hole and a third fixing hole are formed in the two ends of the first sealing piece correspondingly. According to the technical scheme, a second sealing piece is pushed to slide downwards in a conveying pipe, after the bottom surface of the second sealing piece is attached to the top of a rubber floating pad, the top of the rubber floating pad is pushed to be separated from the bottom surface of the conveying pipe, and liquid argon enters the second sealing piece through a sampling notch in the bottom of the second sealing piece; the rubber floating pad floats in the liquid argon to block one end of the conveying pipe, and the sealing device is simple and convenient to use.

Description

Technical Field

[0001] The utility model relates to industrial gas storage equipment, in particular to a liquid argon storage device which is convenient for sampling. Background Art

[0002] High-purity argon is used as a protective gas for the production of high-purity silicon and germanium crystals in the semiconductor industry, as an inert gas for system cleaning, shielding and pressurization, and in chemical vapor deposition, sputtering and annealing processes. High-purity argon can be used as a chromatographic carrier gas and as a diluent for mixed gases in large-scale integrated circuits. Argon is widely used to fill arc lamps, fluorescent lamps, electron tubes and welding protective gas. In ferrous metallurgy, argon is used to refine special steels to improve the quality of steel, especially in the manufacture of stainless steel, which consumes a lot of argon.

[0003] Argon can be stored and transported in liquid form at temperatures below -184°C. Liquid argon is colorless, tasteless, odorless, and non-toxic. It should be stored in a ventilated warehouse, away from fire and heat sources. Liquid argon is generally stored in storage tanks.

[0004] When it is necessary to collect liquid argon in the tank, the collection port needs to be opened and the sampling equipment needs to be used for collection. During the collection process, the internal environment of the liquid argon tank needs to be isolated from the external environment to keep the pressure and temperature in the liquid argon tank basically unchanged. The airtightness of the sampling equipment is required to be high. During the operation, the operation is relatively complicated and difficult to control the construction specifications of the staff, which is not conducive to the convenience of collection. Utility Model Content

[0005] In order to overcome the existing problem that when it is necessary to collect liquid argon in the tank, the collection port needs to be opened and the sampling equipment needs to be used for collection. During the collection process, it is necessary to isolate the internal environment of the liquid argon tank from the external environment, keep the pressure and temperature in the liquid argon tank basically unchanged, and the airtightness requirements of the sampling equipment are high. During the operation, the operation is relatively complicated and difficult to control the construction specifications of the staff, which is not conducive to the convenience of collection. The embodiment of the present application provides a liquid argon storage device for convenient sampling, by pushing the second seal to slide downward inside the conveying pipe, when the bottom surface of the second seal is in contact with the top of the rubber floating pad, the top of the rubber floating pad is pushed to separate from the bottom surface of the conveying pipe, and the liquid argon enters the interior of the second seal through the sampling notch at the bottom of the second seal. The collector takes the second seal out of the interior of the conveying pipe, and the rubber floating pad floats in the liquid argon to seal one end of the conveying pipe, thereby improving the convenience of collecting samples.

[0006] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0007] A liquid argon storage device convenient for sampling includes a partial structure, including a shell and a sealing structure,

[0008] The sealing structure is arranged on the top of the shell;

[0009] A delivery pipe is arranged inside the shell, a rubber floating pad is attached to one end of the bottom of the delivery pipe, the sealing structure includes a first seal, a second seal is sleeve-connected inside the first seal, and a sampling notch is opened at one end of the second seal.

[0010] In a possible implementation, a second fixing hole and a third fixing hole are respectively formed at two ends of the first sealing member, and a plug-in pin is plug-connected inside the second fixing hole and the third fixing hole.

[0011] In a possible implementation, two of the second fixing holes and two of the third fixing holes are processed, the two second fixing holes are coaxially arranged and opposite to each other, the two third fixing holes are coaxially arranged and opposite to each other, and inner walls of one of the second fixing hole and one of the third fixing holes are both processed with threads.

[0012] In a possible implementation, the latch includes a crossbar, a vertical bar and a threaded rod, the crossbar is processed to the top of the vertical bar, the threaded rod is processed to the bottom of the vertical bar, and the threaded rod and the vertical bar are coaxially arranged.

[0013] In a possible implementation, the second sealing member is provided with a first fixing hole, the latch passes through a second fixing hole, and the vertical rod is plug-connected to the first fixing hole, and the latch passes through a third fixing hole.

[0014] In a possible implementation, the latch pin passes through a first fixing hole and a second fixing hole, so that the threaded rod on the latch pin is threadedly connected to the inside of another second fixing hole, and the latch pin passes through a first fixing hole and a third fixing hole, so that the threaded rod on the latch pin is threadedly connected to the inside of another third fixing hole.

[0015] In a possible implementation, the first seal is threadedly connected to one end of the top of the delivery tube, the second seal is slidably connected to the inside of the delivery tube, and the bottom of the second seal slides downward to fit onto the top of the rubber floating pad, exposing the sampling slot to the inside of the shell.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects:

[0017] 1. When it is necessary to collect the internal liquid argon, push the second seal to slide downward inside the delivery pipe. By processing a sampling notch at one end of the bottom of the second seal, the latch is plug-connected to the inside of the third fixing hole through the inside of the first fixing hole, thereby increasing the length of the sealing structure. When the bottom surface of the second seal fits the top of the rubber floating pad, push the top of the rubber floating pad to separate from the bottom surface of the delivery pipe, so that the liquid argon enters the inside of the second seal through the sampling notch at the bottom of the second seal, which is convenient for the collector to operate;

[0018] 2. By integrally molding the delivery pipe inside the shell, one end of the delivery pipe is fitted on the top of the rubber floating pad. As the rubber floating pad is squeezed upward by the buoyancy of liquid argon, the bottom of the delivery pipe fits more stably with the top notch of the rubber floating pad, effectively eliminating the possibility of liquid argon leakage during sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model in use;

[0020] Figure 2 It is a schematic diagram of the overall structure of the sealing structure of the utility model;

[0021] Figure 3 It is a cross-sectional view of the sealing structure of the utility model;

[0022] Figure 4 For this utility model Figure 3 The enlarged schematic diagram of the middle A part;

[0023] Figure 5 This is a schematic diagram of the structure of the latch of the utility model;

[0024] Figure 6 It is a cross-sectional view of the interior of the housing of the utility model;

[0025] Figure 7 It is a structural schematic diagram of the rubber floating pad of the utility model.

[0026] Figure 8 This is an overall cross-sectional view of the utility model in use;

[0027] Description of the drawings: 1. Shell; 2. Sealing structure; 201. First sealing member; 202. Second sealing member; 203. First fixing hole; 204. Second fixing hole; 205. Third fixing hole; 206. Sampling notch; 3. Latch; 301. Cross bar; 302. Vertical bar; 303. Threaded rod; 4. Rubber floating pad; 5. Delivery pipe. DETAILED DESCRIPTION

[0028] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0029] Embodiment 1:

[0030] This embodiment introduces a specific structure of a liquid argon storage device that is convenient for sampling. Figure 1-Figure 8 As shown, it comprises: a shell 1 and a sealing structure 2, the sealing structure 2 is arranged on the top of the shell 1, a delivery pipe 5 is arranged inside the shell 1, a rubber floating pad 4 is attached to one end of the bottom of the delivery pipe 5, the sealing structure 2 comprises a first sealing member 201, a second sealing member 202 is sleeve-connected inside the first sealing member 201, and a sampling notch 206 is opened at one end of the second sealing member 202;

[0031] The first seal 201 and the second seal 202 are collection devices, which are arranged at the top of the delivery tube 5 and are connected to the inside of the delivery tube 5 through the outer wall of the first seal 201, which is convenient for sampling and adjustment. When it is necessary to collect samples, the first seal 201 is twisted to separate it from the housing 1, which is convenient for the collection personnel to operate;

[0032] Secondly, in order to fix the positions of the first sealing member 201 and the second sealing member 202, two second fixing holes 204 and two third fixing holes 205 are processed, the two second fixing holes 204 are coaxially arranged and facing each other, the two third fixing holes 205 are coaxially arranged and facing each other, and the inner walls of one second fixing hole 204 and one third fixing hole 205 are both processed with threads, so that the threaded rod 303 at one end of the latch 3 is threadedly connected to the inside of the second fixing hole 204 or the third fixing hole 205;

[0033] At the same time, when it is necessary to collect samples, the second sealing member 202 is pushed to slide downward inside the delivery tube 5. When the bottom of the second sealing member 202 slides downward to fit the top of the rubber floating pad 4, the pushed rubber floating pad 4 is separated from one end of the delivery tube 5. The sampling notch 206 at one end of the bottom of the second sealing member 202 is exposed to the inside of the shell 1. The liquid argon in the shell 1 enters the second sealing member 202 through the sampling notch 206, and the second sealing member 202 is lifted upward. The rubber floating pad 4 floats in the liquid argon to seal one end of the delivery tube 5, and the convenience of the sample collection process is greatly improved.

[0034] By adopting the above technical solution:

[0035] The above design uses a delivery pipe 5 integrally formed inside the housing 1, so that one end of the delivery pipe 5 is processed inside the housing 1, and one end of the delivery pipe 5 fits with the top notch of the rubber floating pad 4. At the same time, the rubber floating pad 4 is pushed upward on the bottom of the delivery pipe 5 by the buoyancy force, so that one end of the delivery pipe 5 fits with the top of the rubber floating pad 4, thereby preventing the internal environment of the housing 1 from communicating with the external environment of the housing 1, thereby destroying the storage environment of the hydraulic pressure;

[0036] At the same time, a sampling notch 206 is processed at one end of the bottom of the second sealing member 202. When it is necessary to collect the internal liquid argon, the first sealing member 201 is rotated and the threaded connection between the first sealing member 201 and the delivery pipe 5 is adjusted to remove the first sealing member 201 from the inside of the delivery pipe 5. The latch 3 is plug-connected to the inside of the third fixing hole 205 through the inside of the first fixing hole 203, so that the length of the sealing structure 2 is extended, and the second sealing member 202 is pushed to slide downward inside the delivery pipe 5. When the bottom surface of the second sealing member 202 is fitted with the top of the rubber floating pad 4, the rubber floating pad 4 is pushed to separate the top from the bottom surface of the delivery pipe 5. Due to the internal pressure of the shell 1, the liquid argon enters the inside of the second sealing member 202 through the sampling notch 206 at the bottom of the second sealing member 202.

[0037] Embodiment 2:

[0038] Based on Example 1, this example introduces the specific structure of the first sealing member 201 and the second sealing member 202. The first sealing member 201 has a second fixing hole 204 and a third fixing hole 205 at both ends, and the latch 3 is plug-connected to the inside of the second fixing hole 204 and the third fixing hole 205.

[0039] Among them, two second fixing holes 204 and two third fixing holes 205 are processed, the two second fixing holes 204 and the two third fixing holes 205 are coaxially arranged and opposite, the inner walls of one second fixing hole 204 and the third fixing hole 205 are processed with threads, and are connected to the inside of the second fixing hole 204 or the third fixing hole 205 by means of the threaded rod 303 on the plug 3, so as to prevent the plug 3 from falling off due to external influences and affecting the smooth liquid argon sampling.

[0040] The user's operation steps are:

[0041] S1. Hold the top of the first sealing member 201, twist the first sealing member 201 to drive the second sealing member 202 to rotate together, adjust the threaded connection between the first sealing member 201 and the delivery pipe 5, and withdraw the first sealing member 201 from the inside of the delivery pipe 5, thereby separating the first sealing member 201 from the delivery pipe 5;

[0042] S2, rotate the latch 3, so that the threaded rod 303 at one end of the latch 3 is withdrawn from the second fixing hole 204 with threads, pull the latch 3 out of the second fixing hole 204, lift the first sealing member 201 upward, so that the latch 3 passes through the first fixing hole 203 and one of the third fixing holes 205, and the threaded rod 303 on the latch 3 is threadedly connected to the other third fixing hole 205 for fixing, so that the overall length of the sealing structure 2 is adjusted;

[0043] S3. Push the second seal 202 to slide downward inside the delivery tube 5, so that the bottom of the second seal 202 fits on the surface of the rubber floating pad 4, and pushes the rubber floating pad 4 to separate from one end of the delivery tube 5. When the sampling notch 206 at the bottom of the second seal 202 extends into the interior of the shell 1, liquid argon enters the interior of the second seal 202 from the sampling notch 206. When the sample is collected, the collector takes the second seal 202 out of the interior of the delivery tube 5, and the rubber floating pad 4 floats in the liquid argon to seal one end of the delivery tube 5, making it convenient for the collector to take out the collected sample for inspection.

[0044] By adopting the above technical solution:

[0045] The above design prevents the pin 3 from falling off due to external impact by threading the threaded rod 303 at one end of the pin 3 to the inside of the second fixing hole 204 or the third fixing hole 205, thereby ensuring the stability of the connection between the first seal 201 and the second seal 202.

[0046] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A liquid argon storage device convenient for sampling, characterized in that: include: Housing (1); A sealing structure (2) disposed on the top of the housing (1); The shell (1) is internally processed with a delivery pipe (5), one end of the bottom of the delivery pipe (5) is fitted with a rubber floating pad (4), the sealing structure (2) comprises a first sealing member (201), the interior of the first sealing member (201) is sleeve-connected with a second sealing member (202), and one end of the second sealing member (202) is provided with a sampling notch (206).

2. A liquid argon storage device for convenient sampling as claimed in claim 1, characterized in that: A second fixing hole (204) and a third fixing hole (205) are respectively provided at both ends of the first sealing member (201), and a plug pin (3) is plug-connected inside the second fixing hole (204) and the third fixing hole (205).

3. A liquid argon storage device for convenient sampling as claimed in claim 2, characterized in that: Two of the second fixing holes (204) and the third fixing holes (205) are processed, the two second fixing holes (204) are coaxially arranged and face each other, the two third fixing holes (205) are coaxially arranged and face each other, and the inner walls of one of the second fixing holes (204) and one of the third fixing holes (205) are both processed with threads.

4. A liquid argon storage device for convenient sampling as claimed in claim 2, characterized in that: The latch (3) comprises a crossbar (301), a vertical bar (302) and a threaded rod (303); the crossbar (301) is processed to the top of the vertical bar (302); the threaded rod (303) is processed to the bottom of the vertical bar (302); and the threaded rod (303) and the vertical bar (302) are coaxially arranged.

5. A liquid argon storage device for convenient sampling as claimed in claim 2, characterized in that: A first fixing hole (203) is provided on one side of the second sealing member (202), and the latch (3) passes through the inside of a second fixing hole (204) so ​​that the vertical rod (302) is plug-connected to the inside of the first fixing hole (203), and the latch (3) passes through the inside of a third fixing hole (205).

6. A liquid argon storage device for convenient sampling as claimed in claim 5, characterized in that: The latch pin (3) passes through the first fixing hole (203) and the inside of a second fixing hole (204), so that the threaded rod (303) on the latch pin (3) is threadedly connected to the inside of another second fixing hole (204); the latch pin (3) passes through the first fixing hole (203) and the inside of a third fixing hole (205), so that the threaded rod (303) on the latch pin (3) is threadedly connected to the inside of another third fixing hole (205).

7. A liquid argon storage device for convenient sampling as claimed in claim 1, characterized in that: The first sealing member (201) is threadedly connected to one end of the top of the delivery tube (5), and the second sealing member (202) is slidably connected to the inside of the delivery tube (5). The bottom of the second sealing member (202) slides downward to fit onto the top of the rubber floating pad (4), so that the sampling notch (206) is exposed inside the shell (1).

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