Gas cylinder filled with adsorptive solid particles in fluidized manner and method for manufacturing the same

Abstract

The present application relates to the technical field of gas packaging container, and particularly relates to a gas cylinder filled with adsorptive solid particles in a fluidized manner and a manufacturing method thereof. By arranging an inner part with a plurality of through holes on the surface in the gas cylinder body, the adsorptive solid particles can enter the first cavity through the upper cylinder nozzle in a fluidized manner, and cannot enter the second cavity in the inner part through the through holes. The gas adsorbed by the adsorptive solid particles can enter the second cavity through the through holes after desorption, and is discharged to the outside through the lower cylinder nozzle. That is, the gas passage for desorption of the gas is provided in the gas cylinder body, the gas diffusion passage is reduced, the gas flow resistance is reduced, and the gas can be released without overcoming high axial resistance. In this way, the adsorptive solid particles cannot flow out of the gas cylinder body, and the gas adsorbed by the solid particles can be uniformly desorbed and released, so that the gas adsorbed by all the solid particles in the gas cylinder body can be desorbed at a lower pressure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas packaging containers, in particular to a gas cylinder filled with adsorptive solid particles in a fluidized manner and a manufacturing method thereof. BACKGROUND

[0002] Various gases (such as nitrogen oxides, hydrogen sulfide, ammonia, etc.) can be adsorbed by adsorptive solid particles (such as activated carbon, molecular sieve, etc.). For a gas cylinder filled with adsorptive solid particles, it is usually difficult to fill the solid particles into the gas cylinder due to the small nozzle of the gas cylinder. If the solid particles are directly filled into the gas cylinder through the nozzle, the solid particles may also cause the nozzle to be blocked due to bridging during the filling process.

[0003] In order to solve this problem, the related art usually adopts a fluidized manner, that is, using gas flow to carry solid particles to be delivered into the gas cylinder. However, when the solid particles are filled to a certain extent, the desorbed gas needs to pass through a longer channel and overcome a higher axial resistance to be released, that is, the desorption pressure is increased.

[0004] Therefore, it is necessary to provide a gas cylinder filled with adsorptive solid particles in a fluidized manner and a manufacturing method thereof to solve the above technical problems. SUMMARY

[0005] The present application provides a gas cylinder filled with adsorptive solid particles in a fluidized manner and a manufacturing method thereof, which can realize desorption of the gas adsorbed by the solid particles in the gas cylinder at a lower pressure.

[0006] In one embodiment, the present application provides a gas cylinder filled with adsorptive solid particles in a fluidized manner, comprising a gas cylinder body and an inner part, the gas cylinder body comprising an upper head, a cylinder body and a lower head connected in sequence from top to bottom, the upper head being provided with an upper nozzle, the lower head being provided with a lower nozzle, the inner part having a gap between the top end and the upper nozzle, and the bottom end being fixed to the lower nozzle, a first cavity being formed between the gas cylinder body and the inner part, a plurality of through holes being formed on the inner part, adsorptive solid particles being able to enter the first cavity through the upper nozzle in a fluidized manner, and being unable to enter a second cavity in the inner part through the through holes;

[0007] When filling the adsorptive solid particles, the upper nozzle and the lower nozzle are opened, the gas flow carrying the adsorptive solid particles enters the first cavity through the upper nozzle, enters the second cavity through the through holes, and is discharged to the outside through the lower nozzle;

[0008] When the filling of the adsorptive solid particles is completed, the upper nozzle and the lower nozzle are closed;

[0009] When the adsorbed gas of the adsorptive solid particles is desorbed, the lower bottle nozzle is opened, the adsorbed gas of the adsorptive solid particles enters the second cavity through the through hole after desorption, and is discharged to the outside through the lower bottle nozzle.

[0010] Preferably, the inner part is made of wire mesh.

[0011] Preferably, the inner part comprises a conical surface and a cylindrical surface connected in sequence from top to bottom, the tip of the conical surface is directed to the upper bottle nozzle and has a gap with the upper bottle nozzle.

[0012] Preferably, the tip of the conical surface is located in the upper head.

[0013] Preferably, the included angle between the generatrix of the conical surface and the central axis of the cylindrical surface is 20°-75°.

[0014] Preferably, the outer wall of the inner part is fixed with a plurality of rib strips, each of the rib strips is in contact with the inner wall of the cylinder body to fix the inner part.

[0015] Preferably, the inner part is located on the central axis of the gas cylinder body, and the plurality of rib strips are symmetrically arranged.

[0016] Preferably, the inner walls of the upper bottle nozzle and the lower bottle nozzle are provided with threaded holes, and the inner part is inserted into the light hole position of the threaded hole of the lower bottle nozzle.

[0017] Preferably, the upper head and the lower head are respectively welded with the cylinder body.

[0018] In another embodiment, the present application provides a method for filling adsorptive solid particles in a fluidized manner, based on the gas cylinder described in the above embodiment, the method comprises:

[0019] Step S1, welding the lower head and the cylinder body;

[0020] Step S2, inserting the inner part into the light hole position of the threaded hole of the lower bottle nozzle, while making the plurality of rib strips of the inner part in contact with the inner wall of the cylinder body;

[0021] Step S3, welding the upper head and the cylinder body. Beneficial effects

[0022] The present invention provides a gas cylinder and its manufacturing method for filling adsorbent solid particles using a fluidized bed method. By incorporating an internal component with multiple through-holes on its surface inside the cylinder body, the adsorbent solid particles can enter the first cavity through the upper nozzle via a fluidized bed method, but cannot enter the second cavity within the internal component through the through-holes. The gas adsorbed by the solid particles, after being desorbed, can enter the second cavity through the through-holes and be discharged to the outside through the lower nozzle. This provides a gas channel for the desorbed gas to flow within the cylinder body, reducing the gas diffusion path and thus reducing gas flow resistance. The gas does not need to overcome high axial resistance to be released, preventing the adsorbent solid particles from flowing out of the cylinder body. Simultaneously, the gas adsorbed by the solid particles can be uniformly desorbed and released, which is beneficial for the desorption of all gas adsorbed by the solid particles within the cylinder body at a lower pressure. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of a gas cylinder filled with adsorbent solid particles using a fluidized bed method according to one embodiment is shown.

[0025] Figure 2 for Figure 1 A magnified view of a portion of the gas cylinder at point A;

[0026] Figure 3 for Figure 1 The image shows a magnified view of the gas cylinder at point B.

[0027] Figure label:

[0028] 1-Gas cylinder body; 2-Internal components;

[0029] 11-Upper end cap; 12-Cylinder body; 13-Lower end cap; 14-Upper nozzle; 15-Lower nozzle; 16-First cavity;

[0030] 21-Through hole; 22-Second cavity; 23-Conical surface; 24-Cylindrical surface; 25-Rib. Detailed Implementation

[0031] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Generally, the components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0033] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer", "middle" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is used, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0035] As shown in Figures 1 to 3 The present application provides a gas cylinder filled with adsorptive solid particles in a fluidized manner, which comprises a gas cylinder body 1 and an inner part 2, the gas cylinder body 1 comprises an upper head 11, a cylinder body 12 and a lower head 13 connected in sequence from top to bottom, the upper head 11 is provided with an upper cylinder mouth 14, the lower head 13 is provided with a lower cylinder mouth 15, there is a gap between the top end of the inner part 2 and the upper cylinder mouth 14, the bottom end is fixed to the lower cylinder mouth 15, a first cavity 16 is formed between the gas cylinder body 1 and the inner part 2, a plurality of through holes 21 are formed on the inner part 2, the adsorptive solid particles can enter the first cavity 16 through the upper cylinder mouth 14 in a fluidized manner, and cannot enter the second cavity 22 in the inner part 2 through the through holes 21;

[0036] When filling the adsorptive solid particles, the upper cylinder mouth 14 and the lower cylinder mouth 15 are opened, the gas flow conveying the adsorptive solid particles enters the first cavity 16 through the upper cylinder mouth 14, enters the second cavity 22 through the through holes 21, and is discharged to the outside through the lower cylinder mouth 15;

[0037] When the filling of the adsorptive solid particles is completed, the upper cylinder mouth 14 and the lower cylinder mouth 15 are closed;

[0038] When the adsorbed gas of the adsorptive solid particles is desorbed, the lower bottle nozzle 15 is opened, and the adsorbed gas of the adsorptive solid particles enters the second cavity 22 through the through holes 21 after being desorbed, and is discharged to the outside through the lower bottle nozzle 15.

[0039] In the above scheme, by arranging the inner part 2 with the plurality of through holes 21 on the surface in the gas cylinder body 1, the adsorptive solid particles can enter the first cavity 16 through the upper bottle nozzle 14 by using the fluidization method, and cannot enter the second cavity 22 in the inner part 2 through the through holes 21, and the adsorbed gas of the adsorptive solid particles can enter the second cavity 22 through the through holes 21 after being desorbed, and is discharged to the outside through the lower bottle nozzle 15, that is, the gas passage for desorbed gas is provided in the gas cylinder body 1, the gas diffusion passage is reduced, and the gas flow resistance is reduced, so that the adsorptive solid particles cannot flow out of the gas cylinder body 1, and the adsorbed gas of the solid particles can be uniformly desorbed and released, thereby facilitating the desorption of the adsorbed gas of all the solid particles in the gas cylinder body 1 at a lower pressure.

[0040] It can be understood that the upper bottle nozzle 14 is used for filling the solid particles into the bottle by using the gas conveying method (i.e., the fluidization method), and the lower bottle nozzle 15 is used for providing a passage for discharging the gas used for gas conveying out of the bottle.

[0041] In some embodiments, the shape of the inner part 2 can be a cylinder or a polygonal prism, and the through holes 21 of the inner part 2 can be round holes, polygonal holes, strip holes or other irregular holes, as long as the adsorptive solid particles cannot enter the second cavity 22 in the inner part 2 through the through holes 21.

[0042] In one embodiment, the inner part 2 is made of a metal wire mesh to facilitate the processing and forming of the inner part 2.

[0043] As shown in FIG. 1, Figure 2 In one embodiment, the inner part 2 includes a conical surface 23 and a cylindrical surface 24 connected in sequence from top to bottom, and the tip of the conical surface 23 faces the upper bottle nozzle 14 and has a gap with the upper bottle nozzle 14.

[0044] In this scheme, by arranging the conical surface 23, the filling of the solid particles is facilitated, and the tip of the conical surface 23 has a gap with the upper bottle nozzle 14 to prevent the bridging and blocking of the solid particles at this part.

[0045] In one embodiment, the tip of the conical surface 23 is located in the upper head 11, so that the height of the gas flow passage for desorbed gas is as high as possible to reduce the resistance of the gas release as much as possible during the desorption process.

[0046] In one embodiment, the included angle between the generatrix of the conical surface 23 and the central axis of the cylindrical surface 24 is 20°-75°.

[0047] In one embodiment, the outer wall of the inner part 2 is fixed with a plurality of ribbons 25, each of which is in contact with the inner wall of the cylinder 12 to fix the inner part 2, so as to ensure the stability of the fixation of the inner part 2.

[0048] In some embodiments, the inner part 2 is a combined part formed by winding a wire mesh on a mold and then welding a plurality of ribbons 25 on the outer surface of the wire mesh.

[0049] In one embodiment, the inner part 2 is located on the central axis of the cylinder body 1, and the plurality of ribbons 25 are symmetrically arranged, so as to ensure that the inner part 2 always maintains on the central axis in the cylinder body 1 when the solid particles are filled, thereby being more conducive to the release of gas.

[0050] In one embodiment, the inner wall of the upper bottle mouth 14 and the lower bottle mouth 15 is provided with a threaded hole, and the inner part 2 is inserted into the light hole position of the threaded hole of the lower bottle mouth 15, so as to ensure the stability of the fixation of the inner part 2.

[0051] In one embodiment, the upper head 11 and the lower head 13 are respectively welded with the cylinder 12, so as to facilitate the installation of the inner part 2 into the cylinder 12.

[0052] In addition, the embodiment of the present application also provides a method for filling adsorptive solid particles in a fluidized manner, based on the cylinder mentioned in the above embodiment, the method comprising:

[0053] Step S1, welding the lower head 13 and the cylinder 12;

[0054] Step S2, inserting the inner part 2 into the light hole position of the threaded hole of the lower bottle mouth 15, while making the plurality of ribbons 25 of the inner part 2 in contact with the inner wall of the cylinder 12;

[0055] Step S3, welding the upper head 11 and the cylinder 12.

[0056] For example, a welding gas cylinder adsorbs hydrogen sulfide by means of adsorption of solid granular activated carbon, the minimum particle size of the activated carbon is 2 mm, and the degree of fragmentation or pulverization of the granular activated carbon after vibration or friction test, i.e. the wear resistance, is about 90%, the single particle compressive strength is >5 kg, a 100 liter welding gas cylinder with a nominal diameter of 400 mm is filled, the internal height of the gas cylinder is 1500 mm, after the lower head 13 and the cylinder body 12 are welded, the inner part 2 is inserted into the light hole part of the threaded hole of the lower head 13, the inner part 2 is rolled from a 20 mesh silk screen and has a diameter of 30 mm and a length of 1400 mm, the top of the inner part 2 is provided with a conical surface at an angle of 60° with the central axis, a plurality of ribs 25 are arranged on the outer surface of the middle part of the inner part 2, the length of the ribs 25 is 185 mm and the diameter is 5 mm, after the inner part 2 is installed, the upper head 11 and the upper end of the cylinder body 12 are welded together to form the final gas cylinder.

[0057] It can be understood that the gas cylinder manufacturing method provided by the embodiment is based on the same inventive concept as the gas cylinder provided by the above-mentioned embodiment, and therefore has the same beneficial effects, which will not be described here.

[0058] It should be noted that in this document, relational terms such as first and second are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A gas cylinder filled with adsorptive solid particles in a fluidized manner, characterized in that, The gas cylinder comprises a cylinder body and an inner part, the cylinder body comprises an upper head, a cylinder body and a lower head connected in sequence from top to bottom, the upper head is provided with an upper nozzle, the lower head is provided with a lower nozzle, the inner part has a gap between the top end and the upper nozzle, and the bottom end is fixed to the lower nozzle, a first cavity is formed between the cylinder body and the inner part, a plurality of through holes are formed on the inner part, and the adsorptive solid particles can enter the first cavity through the upper nozzle in a fluidized manner, and cannot enter the second cavity in the inner part through the through holes. When the adsorptive solid particles are filled, the upper nozzle and the lower nozzle are opened, the gas flow conveying the adsorptive solid particles enters the first cavity through the upper nozzle, enters the second cavity through the through holes, and is discharged to the outside through the lower nozzle. When the filling of the adsorptive solid particles is completed, the upper nozzle and the lower nozzle are closed. When the gas adsorbed by the adsorptive solid particles is desorbed, the lower nozzle is opened, and the gas adsorbed by the adsorptive solid particles enters the second cavity through the through holes after desorption, and is discharged to the outside through the lower nozzle.

2. The gas cylinder of claim 1, wherein The inner part is made of a metal wire mesh.

3. The gas cylinder of claim 1, wherein The inner part comprises a conical surface and a cylindrical surface connected in sequence from top to bottom, the tip of the conical surface is directed towards the upper nozzle and has a gap with the upper nozzle.

4. The gas cylinder of claim 3, wherein The tip of the conical surface is located in the upper head.

5. The gas cylinder of claim 3, wherein The included angle between the generatrix of the conical surface and the central axis of the cylindrical surface is 20°-75°.

6. The gas cylinder according to any one of claims 1 to 5, characterized in that The outer wall of the inner part is fixed with a plurality of rib strips, each rib strip is in contact with the inner wall of the cylinder body to fix the inner part.

7. The gas cylinder of claim 6, wherein The inner part is located on the central axis of the cylinder body, and the plurality of rib strips are symmetrically arranged.

8. The gas cylinder of claim 7, wherein, The inner walls of the upper nozzle and the lower nozzle are provided with threaded holes, and the inner part is inserted into the light hole position of the threaded hole of the lower nozzle.

9. The gas cylinder of claim 8, wherein, The upper head and the lower head are respectively welded with the cylinder body.

10. A method of manufacturing a gas cylinder filled with adsorptive solid particles in a fluidized manner, characterized by, The gas cylinder based on claim 9, the method comprises: Step S1, welding the lower head and the cylinder body; Step S2, inserting the inner part into the light hole position of the threaded hole of the lower nozzle, while making the plurality of rib strips of the inner part in contact with the inner wall of the cylinder body; Step S3, welding the upper head and the cylinder body.

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