Special snowstorm filler for oxygen generator

Abstract

The utility model belongs to the technical field of oxygen generator molecular sieve filling, and discloses a special snowstorm filler for an oxygen generator, which comprises a filler base, a feed inlet arranged at the top of the filler base, a filler hopper arranged above the filler base, a blanking pipe arranged at the bottom of the filler hopper, and a discharge pipe arranged at the bottom of the blanking pipe. The blanking pipe extends into the feeding hole and is used for filling molecular sieves into the filler base, a multi-stage inclined stainless steel rod group is arranged in the filler base, and the stainless steel rod group consists of stainless steel rods which are vertically crossed in pairs. Due to the unique internal structure of the snowstorm filler, the maximum stacking density of the molecular sieve filler can be ensured, the consistency of the filler in the whole production process is ensured, the tunnel effect is avoided, the molecular sieve is prevented from being broken and generating dust, and the filling efficiency of the molecular sieve is improved; therefore, the equipment can output stable oxygen purity and oxygen yield.

Description

Technical Field

[0001] This utility model relates to the field of molecular sieve filling technology for oxygen generators, and more specifically, to a special blizzard filler for oxygen generators. Background Technology

[0002] An oxygen concentrator is a common medical device that provides a high concentration of oxygen by separating oxygen and nitrogen from the air. The molecular sieve inside the oxygen concentrator is one of the key components, which separates oxygen by selectively adsorbing nitrogen.

[0003] As porous adsorbent materials, the packing quality of molecular sieves directly affects the separation efficiency and quality of oxygen generators. Traditional molecular sieve packing methods include gravity settling, mechanical vibration compaction, and manual layered packing. These methods have the following drawbacks:

[0004] 1. Gravity-driven free settling: The axial density gradient is greater than 15%, which cannot ensure the maximum packing density and is prone to tunneling effect.

[0005] 2. Mechanical vibration compaction: The breakage rate of molecular sieve crystals is greater than 3%, which leads to dust generation.

[0006] 3. Manual layered filling: time-consuming (>4h / ton) and has poor consistency. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a special blizzard filler for oxygen generators, which solves the problems of uneven density, molecular sieve damage, and dust generation in traditional filling methods.

[0008] To solve the above problems, the present invention adopts the following technical solution:

[0009] A special blizzard filler for oxygen concentrators includes a filler base, a feed inlet at the top of the filler base, a filler hopper above the filler base, a discharge pipe at the bottom of the filler hopper extending into the feed inlet for filling molecular sieves into the filler base, and a multi-stage inclined stainless steel rod assembly inside the filler base, the stainless steel rod assembly consisting of two stainless steel rods arranged in a cross shape.

[0010] As a further description of the above technical solution: the stainless steel rod group has four layers, with an interval of 25 mm between adjacent stainless steel rod groups and a rotation of 22.5 degrees.

[0011] As a further description of the above technical solution: the stainless steel rod has a diameter of 3 mm, and both ends of the stainless steel rod are welded to the inner wall of the filler base.

[0012] As a further description of the above technical solution: a support ring is welded to the outer side of the filler base.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] Due to the unique internal structure of the blizzard filler, this utility model can ensure the maximum packing density of molecular sieve filler, ensure the consistency of filler throughout the production process, avoid tunneling effect, prevent molecular sieve breakage and dust generation, and improve the filling efficiency of molecular sieve, thereby ensuring that the equipment can output stable oxygen purity and oxygen production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the filler base of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the filler hopper of this utility model;

[0018] Figure 4 This is a top view of the stainless steel rod of this utility model.

[0019] Explanation of the labels in the diagram:

[0020] 1. Filler base; 2. Feed inlet; 3. Filler hopper; 31. Discharge pipe; 4. Stainless steel rod assembly; 41. Stainless steel rod; 5. Support ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 A special blizzard filler for oxygen generators includes a filler base 1, a feed inlet 2 at the top of the filler base 1, a filler hopper 3 above the filler base 1, a discharge pipe 31 at the bottom of the filler hopper 3, and the discharge pipe 31 extending into the feed inlet 2 for filling molecular sieves into the filler base 1. The interior of the filler base 1 is provided with multi-stage inclined stainless steel rod groups 4, which are composed of two stainless steel rods 41 arranged in a cross shape.

[0023] During traditional natural fall, molecular sieve particles loosely aggregate due to gravity, and their irregular shapes easily create a bridging effect, further increasing voids. In this embodiment, the intervention of a stainless steel rod 41 causes the kinetic energy of the molecular sieve particles to decompose into lateral and longitudinal components upon collision with the rod, disrupting the randomness of natural aggregation and reducing local voids. The inclined rod causes the particles to slide and rotate along its surface, simulating a "vibrating sieve" effect, with smaller particles filling the gaps between larger particles.

[0024] The stainless steel rod assembly 4 consists of four layers, with adjacent layers spaced 25 mm apart and rotated 22.5 degrees. During their descent, the molecular sieve particles repeatedly collide, slide, and rotate with the stainless steel rods 41, disrupting the random arrangement of natural packing and promoting particle redistribution. The rotation angle (22.5° rotation) and layer spacing (25 mm) of the stainless steel rod assembly 4 simulate the interlayer rotation of hexagonal close-packed structures, guiding the particles to gradually approach the closest-packed crystal structure. The four layers of rods arranged with a 22.5° rotation ensure that the particles are uniformly stressed in three-dimensional space, avoiding anisotropy caused by unidirectional arrangement. The 25 mm layer spacing ensures that the particles have sufficient space to adjust their orientation while limiting excessive diffusion.

[0025] Furthermore, the stainless steel rod 41 has a diameter of 3 mm, and both ends of the stainless steel rod 41 are welded to the inner wall of the filler base 1. If the stainless steel rod 41 is too thick, it will hinder the flow of particles; if it is too thin, it will not be able to effectively intervene in the movement of particles. The 3 mm diameter strikes a balance between the transfer of collision energy and the flowability. A support ring 5 is welded to the outer side of the filler base 1 for stable placement of the filler. The discharge pipe 31 is adapted to the feed inlet 2 to ensure the stable placement of the filler hopper 3.

[0026] Working principle: Place the Blizzard filler stably on the upper opening of the oxygen generator cavity. Pour the oxygen-generating molecular sieve into the filler base 1 through the filler hopper 3, taking care to avoid overflow. Continue filling with molecular sieve until the filling height reaches the qualified state.

[0027] When molecular sieve particles pass through a multi-stage inclined stainless steel rod assembly, the particles gradually form a hexagonal close-packed structure through a triple motion mode of collision-sliding-rotation, reducing the porosity to 30-35%, thereby realizing the three-dimensional dynamic fluidized loading of molecular sieve particles.

[0028] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A special blizzard filler for oxygen concentrators, characterized in that: The device includes a filler base (1), a feed inlet (2) is provided on the top of the filler base (1), a filler hopper (3) is provided above the filler base (1), a discharge pipe (31) is provided at the bottom of the filler hopper (3), the discharge pipe (31) extends into the feed inlet (2) and is used to fill the filler base (1) with molecular sieves, and a multi-level inclined stainless steel rod group (4) is provided inside the filler base (1), the stainless steel rod group (4) is composed of two stainless steel rods (41) that cross each other in a cross shape.

2. The blizzard filler for oxygen concentrators according to claim 1, characterized in that: The stainless steel rod group (4) has four layers, with adjacent stainless steel rod groups (4) spaced 25 mm apart and rotated 22.5 degrees.

3. The blizzard filler for oxygen concentrators according to claim 1, characterized in that: The stainless steel rod (41) has a diameter of 3 mm, and both ends of the stainless steel rod (41) are welded to the inner wall of the filler base (1).

4. A blizzard filler for oxygen concentrators according to claim 1, characterized in that: A support ring (5) is welded to the outside of the filler base (1).

5. A blizzard filler for oxygen concentrators according to claim 1, characterized in that: The discharge pipe (31) is adapted to the feed inlet (2).

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