Molecular sieve adsorber
By using a movable lower fixture in the molecular sieve adsorber, and combining the structure of the upper fixture and spring, the problems of easy leakage of the molecular sieve and uneven airflow distribution are solved, achieving higher data reliability and airflow uniformity.
Patent Information
- Application Number
- CN202421548647.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-03
AI Technical Summary
In existing molecular sieve adsorbers, porous sieve plates are prone to desoldering, causing molecular sieve leakage, and the compression of porcelain balls leads to uneven airflow distribution, resulting in high data volatility and low data reliability.
The movable lower fixture is used to support the molecular sieve, and the gas enters the molecular sieve through the air inlet and the lower fixture, avoiding welding problems. Through the combination of the upper fixture and spring, the molecular sieve is uniformly compressed to ensure uniform airflow distribution.
It effectively avoids the problem of molecular sieve leakage, improves the uniformity of airflow distribution, reduces data volatility, and improves data reliability.
Smart Images
Figure CN222752904U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molecular sieve adsorption, in particular to a molecular sieve adsorber. Background Art
[0002] Molecular sieve is a synthetic hydrated aluminosilicate or natural zeolite with the function of screening molecules. It has high adsorption capacity, strong selectivity and high temperature resistance. It is widely used in organic chemical industry and petrochemical industry, and is also an excellent adsorbent for gas dehydration. It is also increasingly valued in waste gas purification.
[0003] The molecular sieve adsorber is a device that uses molecular sieves for gas adsorption, which mainly includes a cylinder, an air inlet is arranged at the upper end of the cylinder, an air outlet is arranged at the lower end of the cylinder, a porous sieve plate is welded at the lower part of the cylinder to support and place the molecular sieve, and a ceramic ball is arranged at the upper part of the cylinder to press the molecular sieve below. The gas to be treated is discharged from the air outlet after being adsorbed by the molecular sieve. However, the molecular sieve of this structure has the following problems: the porous sieve plate welded on the inner wall of the cylinder has the problem of desoldering, which causes the molecular sieve to be blown out and leaked by the gas; and the use of ceramic balls to press the upper part will cause uneven airflow distribution, resulting in large fluctuations in the data collected from the air outlet, resulting in low data reliability. Utility Model Content
[0004] The utility model aims to provide a molecular sieve adsorber to solve the problem of easy leakage of molecular sieve in the prior art.
[0005] To achieve the above-mentioned purpose, a molecular sieve adsorber of the utility model adopts the following technical scheme: a molecular sieve adsorber, comprising a cylinder, an air inlet is provided at the lower end of the cylinder, an air inlet pipe is provided at the air inlet, a first connecting flange is fixedly provided at the upper part of the cylinder, a second connecting flange is sealingly matched on the first connecting flange, an air outlet connected to the inner cavity of the cylinder is provided on the second connecting flange, and an air outlet pipe is provided at the air outlet; a lower fixing piece is movably placed at the bottom of the cylinder, the lower fixing piece has a cavity, a connecting hole connected to the air inlet is provided on the circumferential side wall of the lower fixing piece, and the upper side surface of the lower fixing piece is a porous side surface for supporting the molecular sieve and connecting with the cavity; an upper fixing piece for compressing the molecular sieve is provided at the upper part of the cylinder, and the upper fixing piece has air holes.
[0006] A spring is arranged inside the cylinder between the upper fixing piece and the second connecting flange.
[0007] The upper fixing piece is a cylindrical structure with an open upper end, the bottom plate of the cylindrical structure is a porous plate, the holes on the porous plate form air holes, one end of the spring extends into the cylindrical structure and presses on the porous plate, and the other end presses on the second connecting flange.
[0008] The second connecting flange has a protrusion extending into the interior of the cylinder body and is used for pressing the spring.
[0009] The lower fixing piece is a cylindrical structure with an open lower end.
[0010] The second connecting flange is provided with a sealing ring for sealingly cooperating with the first connecting flange.
[0011] The first connecting flange and the second connecting flange are connected by bolts.
[0012] The upper part of the air intake pipe is fixedly connected to the first connecting flange, and the second connecting flange is movable up and down and rotatably installed on the air intake pipe to realize the positioning of the second connecting flange.
[0013] The beneficial effects of the utility model are as follows: a lower fixing part is used to support the molecular sieve by being placed movably in the cylinder, and the gas introduced into the air inlet pipe enters the molecular sieve through the air inlet and the lower fixing part. Compared with the prior art, this arrangement does not have the problem of welding, and thus avoids the problem that the welding point between the porous sieve plate used to support the molecular sieve and the inner wall of the cylinder in the prior art is easy to desolder and cause the molecular sieve to leak. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of an embodiment of a molecular sieve adsorber of the utility model;
[0015] Figure 2 yes Figure 1 Schematic diagram of the internal structure;
[0016] Figure 3 yes Figure 1 A schematic diagram of the structure of the middle and upper fixing parts;
[0017] Figure 4 yes Figure 1 A schematic diagram of the structure of the middle and lower fixing parts;
[0018] Figure 5 yes Figure 1 Schematic diagram of the structure after the second connecting flange is rotated. DETAILED DESCRIPTION
[0019] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0020] It should be noted that, unless otherwise defined, the technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0021] An embodiment of a molecular sieve adsorber of the utility model is as follows Figure 1-Figure 5 As shown, it includes a cylinder 1, a support plate 2 is provided at the bottom of the cylinder, and the support plate also serves as the cylinder bottom. An air inlet is provided at the lower end of the cylinder, and an air inlet pipe 6 is provided at the air inlet. A first connecting flange 3 is fixedly provided on the upper part of the cylinder, and a second connecting flange 4 is sealed and matched on the first connecting flange. An air outlet connected to the inner cavity of the cylinder is provided on the second connecting flange, and an air outlet pipe 7 is provided at the air outlet. A sealing ring 12 for sealing with the first connecting flange is provided on the second connecting flange. Specifically, the sealing ring can be bonded to the second connecting flange. The first connecting flange and the second connecting flange are connected by a plurality of bolts 5 arranged circumferentially to achieve a sealed connection between the two. In order to position the second connecting flange and facilitate the connection between the second connecting flange and the first connecting flange, the upper part of the air inlet pipe is fixedly connected to the first connecting flange, and a mounting hole is provided on the second connecting flange. The mounting hole is mounted on the air inlet pipe, so that the second connecting flange can move up and down and rotate circumferentially along the air inlet pipe.
[0022] The bottom of the cylinder body is movably placed with a lower fixing member 8, which is a cylinder structure with an opening at the lower end. The lower fixing member has a cavity with an opening facing downward, and a connecting hole 9 connected to the air inlet is provided on the circumferential side wall of the lower fixing member, and the number of the connecting holes is multiple and distributed at intervals along the circumference. The upper side 13 of the lower fixing member 8 is a porous side for supporting the molecular sieve and communicating with the cavity. The upper part of the cylinder body is provided with an upper fixing member 10 for compacting the molecular sieve (not shown in the figure), and the upper fixing member has air holes. Specifically, the upper fixing member is a cylinder structure with an opening at the upper end, and the bottom plate 14 of the cylinder structure is a porous plate, and the holes on the porous plate form air holes. A spring 11 is provided between the upper fixing member and the second connecting flange inside the cylinder, and one end of the spring extends into the cylinder structure and presses on the porous plate, and the other end presses on the second connecting flange. The second connecting flange has a protrusion 15 extending into the inside of the cylinder body for pressing the spring.
[0023] When in use, the lower fixing part is placed in the cylinder with the opening facing downward, and the molecular sieve is loaded. Then, the upper fixing part and the spring are placed in the cylinder, and the second connecting flange is moved and rotated so that the protrusion on the second connecting flange enters the cylinder and presses the spring, so that the molecular sieve between the upper and lower fixing parts is squeezed and fixed. The first connecting flange and the second connecting flange are connected by bolts to achieve the sealing of the cylinder. The gas enters from the air inlet pipe and enters the cylinder. A part of the gas enters the molecular sieve upward from the gap between the lower fixing part and the cylinder, and the other part enters the lower fixing part and enters the molecular sieve through the porous upper side. The adsorbed gas is discharged from the air outlet pipe.
[0024] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model according to the specific circumstances.
[0025] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.
[0026] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.
[0027] In other embodiments of the utility model, the first connecting flange and the second connecting flange may also be connected by screws; the first connecting flange and the second connecting flange may also be connected by a clamp; and the sealing ring may also be bonded to the first connecting flange.
Claims
1. A molecular sieve adsorber, comprising a cylinder, characterized in that: An air inlet is provided at the lower end of the cylinder, an air inlet pipe is provided at the air inlet, a first connecting flange is fixedly provided at the upper part of the cylinder, a second connecting flange is sealingly fitted on the first connecting flange, an air outlet connected to the inner cavity of the cylinder is provided on the second connecting flange, and an air outlet pipe is provided at the air outlet; a lower fixing piece is movably placed at the bottom of the cylinder, the lower fixing piece has a cavity, a connecting hole connected to the air inlet is provided on the circumferential side wall of the lower fixing piece, and the upper side surface of the lower fixing piece is a porous side surface for supporting the molecular sieve and connecting with the cavity; an upper fixing piece for compressing the molecular sieve is provided at the upper part of the cylinder, and the upper fixing piece has air holes.
2. The molecular sieve adsorber according to claim 1, characterized in that: A spring is arranged inside the cylinder between the upper fixing piece and the second connecting flange.
3. The molecular sieve adsorber according to claim 2, characterized in that: The upper fixing piece is a cylindrical structure with an open upper end, the bottom plate of the cylindrical structure is a porous plate, the holes on the porous plate form air holes, one end of the spring extends into the cylindrical structure and presses on the porous plate, and the other end presses on the second connecting flange.
4. The molecular sieve adsorber according to claim 3, characterized in that: The second connecting flange has a protrusion extending into the interior of the cylinder body and is used for pressing the spring.
5. The molecular sieve adsorber according to claim 1, characterized in that: The lower fixing piece is a cylindrical structure with an open lower end.
6. The molecular sieve adsorber according to any one of claims 1 to 5, characterized in that: The second connecting flange is provided with a sealing ring for sealingly cooperating with the first connecting flange.
7. The molecular sieve adsorber according to claim 6, characterized in that: The first connecting flange and the second connecting flange are connected by bolts.
8. The molecular sieve adsorber according to claim 1, characterized in that: The upper part of the air intake pipe is fixedly connected to the first connecting flange, and the second connecting flange is movable up and down and rotatably installed on the air intake pipe to realize the positioning of the second connecting flange.