Gas purification pipe convenient to disassemble, assemble and replace

Abstract

The utility model belongs to the field of gas purification pipes, and discloses a gas purification pipe convenient to disassemble, assemble and replace, which comprises a gas pipe, two ends of the gas pipe are in threaded connection with side covers, a connecting nozzle is fixed at the center of the outer end of each side cover, the gas pipe comprises outer end pipes at two ends and a middle pipe in the middle, and two ends of the middle pipe are structurally symmetrical. The outer end pipe and the middle pipe are installed through a connecting sleeve device, the outer end pipe and the middle pipe are filled with different types of filling materials, and the filling materials between the outer end pipe and the middle pipe are blocked through a filler plug. Sponge is arranged on the inner side of the filler plug, a circular ventilation baffle is arranged on the outer side of the filler plug, and the inner wall of the outer end pipe and the inner wall of the middle pipe are fixed through friction force between the outer end pipe and the ventilation baffle. According to the utility model, only the outer end pipe or the middle pipe of which the filling material needs to be replaced needs to be independently disassembled, and the filling material in the outer end pipe or the middle pipe is blocked by the filler plug and cannot fall out after being disassembled, and gas cannot be blocked, so that the filling material is extremely convenient to replace.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas purification pipe field, especially relate to a gas purification pipe convenient to dismount and replace. BACKGROUND

[0002] The gas purification pipe is mainly used for the purification of carrier gas, dehydration, deoxygenation and the like in chromatography, spectroscopy, energy spectrum and the like, and is used for the gas preparation in the chemical industry, electronics, metallurgy, medicine and food industry. The two end interfaces are connected in a clamping sleeve mode and can be connected with various imported and domestic instruments. The purification and dehydration effect is determined according to the substance filled in the gas purification pipe. The existing gas purification pipe is mainly a straight cylinder type, different filling substances are filled in the inside, and a sponge is used to separate and avoid mixing. In order to achieve better purification and dehydration effect, the filling substance in the inside of the gas purification pipe needs to be replaced. When the filling substance in the middle section is replaced, the gas purification pipe needs to be dismounted at one end and the filling substance needs to be poured out and new filling substance needs to be filled, so that the replacement of the filling substance is extremely inconvenient. SUMMARY

[0003] The utility model discloses a kind of gas purification pipes convenient to dismount and replace, solve the problems, such as inconvenient disassembly and internal substance filling of gas purification pipe and inconvenient replacement.

[0004] In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

[0005] A kind of gas purification pipe convenient to dismount and replace, including gas pipe, the side cover is connected with the two ends of the gas pipe by screw thread, the connecting mouth is fixed in the center of the outer end of the side cover, the gas pipe includes the outer end pipe of two ends and the intermediate pipe of middle part, the structure of the two ends of the intermediate pipe is symmetrical, the outer end pipe and the intermediate pipe are installed by connecting sleeve device, the outer end pipe and the intermediate pipe are filled with different types of filling substance, and the filling substance between the outer end pipe and the intermediate pipe is blocked by filling plug;The inside of the filling plug is sponge, and the outside is circular air baffle, the inner wall of the outer end pipe and the intermediate pipe is fixed by the friction force with air baffle;Air baffle is penetrated by multiple uniform air holes, and the outer wall is distributed with multiple compensation grooves, the arc-shaped strip is fixed on the outside of compensation groove, the arc-shaped strip is soft plastic material with elastic deformation, and air baffle is connected with the inner wall of the outer end pipe and the intermediate pipe by the elastic deformation of arc-shaped strip.

[0006] Preferably, the air baffle further includes a clamping strip integrally formed in the middle.

[0007] Preferably, the butt joint surface of the outer end pipe and the intermediate pipe is respectively bonded with a butt joint sealing ring, so that the outer end pipe and the intermediate pipe can be soft butt jointed.

[0008] Preferably, the connecting sleeve device comprises a screw ring and a fixing screw sleeve, the screw ring is sleeved on both ends of the intermediate pipe, and the fixing screw sleeve is fixed to the other end of the outer end pipe relative to the side cover, and the intermediate pipe is threadedly connected with the fixing screw sleeve of the outer end pipe through the screw ring.

[0009] Preferably, the screw ring comprises a fixing ring, a limiting ring and a spring, the fixing ring is fixed to the outer wall of the intermediate pipe, the inner wall of the screw ring is provided with the limiting ring at the middle part and the inner side end respectively, the fixing ring is located between the two limiting rings, and a plurality of springs are arranged between the fixing ring and the limiting ring at the middle part.

[0010] Preferably, the screw ring further comprises two outer wall sealing rings of the inner wall, and the two outer wall sealing rings are located at both ends of the connection part of the outer end pipe and the intermediate pipe respectively.

[0011] Preferably, the outermost end of the screw ring is integrally formed with a concentric ring, and the gap between the concentric ring and the outer end pipe is 0.1-0.5mm.

[0012] The utility model has the following beneficial effects:

[0013] 1. The trachea is assembled through the outer end pipe and the intermediate pipe in a multi-section mode, the internal part can be filled with different filling materials, when the filling material is replaced, only the outer end pipe or the intermediate pipe of the filling material to be replaced needs to be disassembled, and the filling material in the internal part is blocked by the filling material plug and cannot fall out after disassembly, and the gas passing is not blocked, so that the replacement of the filling material is extremely convenient.

[0014] 2. The butt joint sealing ring is used for the first layer sealing at the butt joint part of the intermediate pipe and the outer end pipe, and the outer wall sealing ring is used for the second layer sealing, so that the sealing performance of the intermediate pipe and the outer end pipe is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the schematic diagram of the appearance structure of the utility model;

[0016] Figure 2 It is the connecting sectional view of the outer end pipe and the intermediate pipe of the utility model;

[0017] Figure 3 It is the sectional view schematic diagram of the filling material plug in the intermediate pipe of the utility model;

[0018] Figure 4 It is the sectional view schematic diagram of the filling material plug in the outer end pipe of the utility model;

[0019] Figure 5 It is the connecting schematic diagram of the air baffle in the intermediate pipe of the utility model;

[0020] Figure 6 It is the connecting sectional view of the screw ring and the intermediate pipe of the utility model;

[0021] Icon: 1, trachea; 11, outer end tube; 12, middle tube; 13, connecting sleeve device; 131, screw ring; 1311, fixed ring; 1312, limiting ring; 1313, spring; 1314, outer wall sealing ring; 1315, concentric ring; 132, fixed screw sleeve; 14, filling material; 15, filling material plug; 151, sponge; 152, ventilation baffle; 1521, ventilation hole; 1522, compensation groove; 1523, arc-shaped strip; 1524, clamping strip; 153, butt sealing ring; 2, side cover; 21, connecting nozzle. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0023] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] As Figures 1-6As shown in the embodiment, a gas purification pipe convenient to disassemble and replace includes a gas pipe 1, both ends of the gas pipe 1 are threadedly connected with side covers 2, the outer end center of each side cover 2 is fixedly provided with a connecting nozzle 21, the gas pipe 1 is connected with an external air pipeline through the connecting nozzle 21, the gas pipe 1 includes an outer end pipe 11 at both ends and an intermediate pipe 12 in the middle part, both ends of the intermediate pipe 12 are symmetrical in structure, the outer end pipe 11 and the intermediate pipe 12 are installed through a connecting sleeve device 13, so that the gas pipe 1 forms a multi-section connection, different types of filling materials 14 are filled in the inner part of the outer end pipe 11 and the intermediate pipe 12, and the filling materials 14 play different roles in gas purification and dehydration, the filling materials 14 between the outer end pipe 11 and the intermediate pipe 12 are blocked by filling material plugs 15, so as to avoid that the filling materials 14 fall from the inner part when any one of the intermediate pipe or the end pipe is removed, the inner side of each filling material plug 15 is sponge 151, and the outer side is a circular air baffle 152, the inner wall of the outer end pipe 11 and the intermediate pipe 12 is fixed through friction with the air baffle 152, a plurality of uniform air holes 1521 are formed in the air baffle 152, and a plurality of compensation grooves 1522 are distributed on the outer wall of the air baffle 152, arc-shaped strips 1523 are fixed on the outer side of the compensation grooves 1522, the arc-shaped strips 1523 are soft plastic materials with elastic deformation, and the air baffle 152 is connected with the inner wall of the outer end pipe 11 and the intermediate pipe 12 through elastic deformation of the arc-shaped strips 1523. The outer side of the arc-shaped strip 1523 is compressed into the compensation groove 1522 after being stressed, the friction between the air baffle 152 and the outer end pipe 11 and the intermediate pipe 12 is increased, and the connection fastening is increased.

[0025] Specifically, the air baffle 152 further integrally includes a clamping strip 1524. The air baffle 152 is conveniently put into or taken out of the outer end pipe 11 and the intermediate pipe 12 manually.

[0026] Specifically, the abutting surfaces of the outer end pipe 11 and the intermediate pipe 12 are respectively bonded with abutting sealing rings 153, so that the outer end pipe 11 and the intermediate pipe 12 can be soft abutted. The sealing effect is achieved, and gas is prevented from running out of the middle gap.

[0027] Further, the connecting sleeve device 13 includes a screw ring 131 and a fixed screw sleeve 132, the screw ring 131 is sleeved at both ends of the intermediate pipe 12, the fixed screw sleeve 132 is fixed at the other end of the outer end pipe 11 relative to the side cover 2, and the intermediate pipe 12 is threadedly connected with the fixed screw sleeve 132 of the outer end pipe 11 through the screw ring 131. Through the threaded connection, the outer end pipe 11 and the intermediate pipe 12 are prevented from moving axially, and the stability of the connection between the outer end pipe 11 and the intermediate pipe 12 is strengthened.

[0028] Further, the screw ring 131 comprises a fixing ring 1311, a limiting ring 1312 and springs 1313, the fixing ring 1311 is fixed to the outer wall of the middle pipe 12, the inner wall of the screw ring 131 is provided with the limiting ring 1312 at the middle part and the inner side end respectively, the fixing ring 1311 is located between the two limiting rings 1312, and the fixing ring 1311 and the middle limiting ring 1312 are provided with the springs 1313. The springs 1313 make the screw ring 131 exert an axial pushing force to the outside, so that the screw ring 131 is more convenient to connect with the fixed sleeve 132.

[0029] Specifically, the screw ring 131 further comprises two outer wall sealing rings 1314 on the inner wall, and the two outer wall sealing rings 1314 are located at the two ends of the connection between the outer end pipe 11 and the middle pipe 12. The sealing property of the connection between the outer end pipe 11 and the middle pipe 12 is further improved.

[0030] Specifically, the screw ring 131 is integrally provided with a concentric ring 1315 at the outermost end, and the gap between the concentric ring 1315 and the outer end pipe 11 is 0.1-0.5mm. When the outer end pipe 11 and the middle pipe 12 are connected, the coaxiality can be maintained, and the gas leakage caused by misalignment can be avoided.

[0031] The working principle of the utility model is as follows: when the filling material 14 in the middle pipe 12 of the gas pipe 1 is replaced, another middle pipe 12 filled with the replacement filling material is replaced to the position of the original middle pipe 12, the middle pipe 12 and the outer end pipe 11 are taken off, and the filling material 14 in the middle pipe 12 and the outer end pipe 11 is blocked by the filling material plug and cannot fall out. The middle pipe 12 filled with the new filling material 14 is connected with the outer end pipe 11, at this time, the outer wall of the outer end pipe 11 and the outer wall sealing ring 1314 on the outside are removed, the sealing is realized, when the screw ring 131 is screwed to the bottom, the two opposite connecting sealing rings 153 are in contact with each other, and the sealing is realized.

[0032] When the filling material 14 in the outer end pipe 11 of the gas pipe 1 is replaced, the method is the same as above.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A gas purifying pipe convenient to disassemble and replace, comprising a gas pipe (1), the both ends of the gas pipe (1) are threadedly connected with side covers (2), the outer ends of the side covers (2) are fixedly connected with connecting mouths (21), characterized in that, The trachea (1) comprises an outer end tube (11) at both ends and a middle tube (12) in the middle, the structure of the middle tube (12) at both ends is symmetrical, the outer end tube (11) and the middle tube (12) are installed through the connecting sleeve device (13), the inner part of the outer end tube (11) and the middle tube (12) is filled with different types of filling materials (14), and the filling materials (14) between the outer end tube (11) and the middle tube (12) are blocked by the filling plug (15). The inner side of the filling plug (15) is a sponge (151), and the outer side is a circular ventilation baffle (152), the inner walls of the outer end tube (11) and the middle tube (12) are fixed through the friction with the ventilation baffle (152); The ventilation baffle (152) is penetrated by a plurality of uniform ventilation holes (1521), and the outer wall is provided with a plurality of compensation grooves (1522), the outer side of the compensation grooves (1522) is fixedly connected with an arc-shaped strip (1523), the arc-shaped strip (1523) is made of soft plastic material with elastic deformation, and the ventilation baffle (152) is connected with the inner walls of the outer end tube (11) and the middle tube (12) through the elastic deformation of the arc-shaped strip (1523).

2. The gas purification tube according to claim 1, wherein The ventilation baffle (152) further comprises a clamping strip (1524) integrally formed in the middle.

3. The gas purification tube according to claim 1, wherein The butt joint surfaces of the outer end tube (11) and the middle tube (12) are respectively bonded with butt joint sealing rings (153), so that the outer end tube (11) and the middle tube (12) can be soft butt jointed.

4. The gas purification tube according to claim 1, wherein The connecting sleeve device (13) comprises a screw ring (131) and a fixed screw sleeve (132), the screw ring (131) is sleeved at both ends of the middle tube (12), the fixed screw sleeve (132) is fixed to the other end of the outer end tube (11) relative to the side cover (2), and the middle tube (12) is threadedly connected with the fixed screw sleeve (132) of the outer end tube (11) through the screw ring (131).

5. The gas purification tube according to claim 4, wherein The screw ring (131) comprises a fixed ring (1311), a limiting ring (1312) and a spring (1313), the fixed ring (1311) is fixed to the outer wall of the middle tube (12), the middle part and the inner side end of the inner wall of the screw ring (131) are respectively fixed with the limiting rings (1312), the fixed ring (1311) is located between the two limiting rings (1312), and a plurality of springs (1313) are arranged between the fixed ring (1311) and the middle limiting ring (1312).

6. The gas purification tube according to claim 5, wherein The screw ring (131) further comprises two outer wall sealing rings (1314) on the inner wall, and the two outer wall sealing rings (1314) are respectively located at both ends of the connecting position of the outer end tube (11) and the middle tube (12).

7. The gas purification tube according to claim 5, wherein The outermost end of the screw ring (131) is integrally formed with a concentric ring (1315), and the gap between the concentric ring (1315) and the outer end tube (11) is 0.1-0.5mm.

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