Industrial oxygen preparation device for removing moisture and dust

Abstract

The utility model discloses a moisture and dust removal industrial oxygen preparation device which comprises a hollow cylindrical shell and an air inlet pipe installed at the center of the top end of the hollow cylindrical shell, an air blower is installed at the top end of the air inlet pipe, and an exhaust part is installed at the center of the bottom end of the hollow cylindrical shell. A middle container is integrally formed in the center of the interior of the hollow cylindrical shell, a material supporting disc is integrally formed at one end of the interior of the middle container, an inner container is fixed to the top end of the material supporting disc, and a ventilation tray is fixed to the outer wall of the middle container. External air is fed into the air blower and diffused into the multiple drying agent layers, the glass fiber filter element can effectively intercept large-particle dust and pollutants in the air and reduce the air flow speed through the characteristic that fibers of the glass fiber filter element are dense, the air penetrates through the different types of drying agent layers, and the air quality is improved. The moisture absorption characteristics of different drying agents are fully utilized, and therefore it is ensured that air evenly flows through all the drying agent layers.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial oxygen preparation, in particular to an industrial oxygen preparation device for removing moisture and dust. Background Art

[0002] In the process of industrial oxygen production, in order to ensure the quality of oxygen and the stable operation of equipment, air purification is particularly important. Impurities in the air are mainly removed through moisture adsorption devices and dust filters. The main function of the moisture adsorption device is to remove water vapor in the air to prevent moisture from corroding the oxygen production equipment and affecting the purity of oxygen. Its structure usually consists of an adsorption tower and an adsorbent. Adsorbents such as molecular sieves and silica gel effectively adsorb water molecules through physical or chemical effects to ensure that the air entering the separation equipment is in a dry state. On the other hand, the dust filter is responsible for removing solid particles in the air, such as dust and fine impurities, to protect downstream equipment and extend its service life. The structure of the dust filter includes a filter and a filter element. Common filtering methods include mechanical filtration, electrostatic filtration, and pneumatic filtration. Through the principles of inertial collision, electrostatic action and diffusion effect, these devices can effectively capture and remove pollutants in the air; for example, an industrial oxygen preparation device for removing moisture and dust disclosed in the authorization announcement number CN221287203U includes an air intake pipe fixedly installed on both ends of the side surface of the purification box, an air collecting pipe fixedly connected between the two ends of the side of the air intake pipe, and a first mounting plate fixedly installed on both ends of the inner surface of the purification box, and the number of the first mounting plates is four groups, and a first filter plate and a second filter plate are slidably installed between the inner sides of each two groups of first mounting plates, which are provided on both sides of the inside of the purification box. The first filter plate and the second filter plate can filter the air transported by the intake pipe. However, in the use of the above technical solution, since the air has a high flow rate under the push of the blower or the air pump, and the desiccant absorbs moisture in the air through physical or chemical action to achieve the purpose of purifying the air, if the air flow rate is too high, the contact time between the air and the desiccant will be shortened, which means that the desiccant cannot fully exert its adsorption effect, and the moisture in the air cannot be completely adsorbed within a sufficient time, resulting in that part of the moisture cannot be effectively removed, and then the air humidity in the oxygen production process is too high, affecting the subsequent oxygen separation and liquefaction process. Utility Model Content

[0003] The purpose of the utility model is to provide an industrial oxygen preparation device for removing moisture and dust. A blower sends external air into a glass fiber filter element at the top of a hollow cylindrical shell. The air after dust filtration and flow rate reduction enters the inner liner and the middle liner. At this time, the air diffuses outward from the central axis of the hollow cylindrical shell and passes through a silica gel desiccant, a molecular sieve desiccant, and an activated alumina desiccant in sequence to fully remove moisture from the air, thereby solving the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an industrial oxygen preparation device for removing moisture and dust, comprising a hollow cylindrical shell and an air inlet pipe installed at the center position of the top end of the hollow cylindrical shell, and a blower is installed at the top end of the air inlet pipe, an exhaust part is installed at the center position of the bottom end of the hollow cylindrical shell, a middle tank is integrally formed at the center position inside the hollow cylindrical shell, and a supporting tray is integrally formed at one end inside the middle tank, an inner tank is fixed at the top of the supporting tray, a ventilation tray is fixed on the outer wall of the middle tank, the interiors of the inner tank and the middle tank are respectively filled with silica gel desiccant and molecular sieve desiccant, and the hollow cylindrical shell chamber above the ventilation tray is filled with activated alumina desiccant, the blower is used to send air into the air inlet pipe and the interior of the glass fiber filter element, the filtered air enters the inner tank and diffuses outward from the central axis of the hollow cylindrical shell, passes through the silica gel desiccant, the molecular sieve desiccant, the activated alumina desiccant in sequence, and is discharged from the exhaust part.

[0005] Preferably, the exhaust portion adopts a T-shaped three-way pipe.

[0006] Preferably, a conical chamber for communicating with a glass fiber filter element is provided inside the air inlet pipe, and the diameter of the conical chamber gradually decreases from one end close to the blower to the other end.

[0007] Preferably, the middle liner and the inner liner are made of stainless steel components.

[0008] Preferably, an exhaust cavity is arranged inside the middle pot below the supporting tray, and a straight slot connecting portion communicating with the internal chamber of the hollow column shell is arranged on the inner wall of the middle pot on one side of the exhaust cavity.

[0009] Preferably, a flow guide tube is integrally formed at the center position of the bottom end of the hollow column shell, the top end of the flow guide tube extends into the exhaust cavity, and the bottom end of the flow guide tube extends to the inside of the exhaust part.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the industrial oxygen preparation device for removing moisture and dust sends external air into a blower, filters dust through a glass fiber filter element, and diffuses the air into multiple desiccant layers, wherein the glass fiber filter element can effectively intercept large particles of dust and pollutants in the air due to its dense fiber characteristics, thereby preventing them from entering the desiccant area or the interior of the oxygen production equipment. In this way, not only the cleanliness of the desiccant is protected, but also the service life of the equipment is extended, the frequency of equipment maintenance is reduced, and the air flow rate after filtration is low, which is helpful for the subsequent moisture adsorption process. Under the condition of a lower flow rate, the contact time between the air and the desiccant is extended, providing sufficient time for the adsorption of moisture. This helps to ensure the adsorption efficiency of the desiccant and further improve the air purification effect; the air diffuses outward from the central axis of the hollow column shell and passes through different types of desiccant layers in turn to make full use of the hygroscopic characteristics of different desiccants, thereby ensuring that the air flows evenly through all desiccant layers without the situation where a certain layer of desiccant is not fully utilized. This airflow distribution method can effectively improve the efficiency of the entire purification system, ensure that each part of the desiccant can evenly participate in the adsorption of moisture, provide drier air for the subsequent oxygen separation process, and ensure that higher purity oxygen is obtained in the end. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 It is a side view structural schematic diagram of the utility model;

[0013] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 4 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 5 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the utility model.

[0017] In the figure: 1. hollow cylindrical shell; 2. air inlet pipe; 201. cone cavity chamber; 3. blower; 4. exhaust part; 5. glass fiber filter element; 6. middle tank; 601. ventilation tray; 602. support tray; 603. exhaust cavity; 604. straight slot connecting part; 7. inner tank; 8. silica gel desiccant; 9. molecular sieve desiccant; 10. activated alumina desiccant. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-6 The utility model provides an embodiment: an industrial oxygen preparation device for removing moisture and dust, comprising a hollow cylindrical shell 1 and an air inlet pipe 2 installed at the center of the top of the hollow cylindrical shell 1, and a blower 3 is installed at the top of the air inlet pipe 2, and an exhaust part 4 is installed at the center of the bottom of the hollow cylindrical shell 1, and the exhaust part 4 adopts a T-shaped three-way pipe;

[0020] A center liner 6 is integrally formed at the center position inside the hollow cylindrical shell 1, and a supporting tray 602 is integrally formed at one end inside the center liner 6, an inner liner 7 is fixed to the top of the supporting tray 602, and a ventilation tray 601 is fixed to the outer wall of the center liner 6. The inner liner 7 and the center liner 6 are respectively filled with silica gel desiccant 8 and molecular sieve desiccant 9, and the chamber of the hollow cylindrical shell 1 above the ventilation tray 601 is filled with activated alumina desiccant 10. The blower 3 is used to send air into the air inlet pipe 2 and the glass fiber filter element 5. The filtered air enters the inner liner 7 and diffuses outward from the central axis of the hollow cylindrical shell 1, passes through the silica gel desiccant 8, the molecular sieve desiccant 9, and the activated alumina desiccant 10 in sequence, and is discharged from the exhaust part 4;

[0021] The blower 3 delivers air into the cone cavity chamber 201 through the air inlet pipe 2 and enters the glass fiber filter element 5. The highly dense fiber structure can effectively intercept large particles of dust and impurities in the air.

[0022] The middle tank 6 and the inner tank 7 are made of stainless steel. The outer wall surfaces of the middle tank 6 and the inner tank 7 are provided with holes for air to pass through, so as to facilitate the air to enter the desiccant at different levels. The interior of the air inlet pipe 2 is provided with a cone cavity chamber 201 for communicating with the glass fiber filter element 5. The diameter of the cone cavity chamber 201 gradually decreases from one end close to the blower 3 to the other end. The air after preliminary filtration enters the inner tank 7 and contacts with the silica gel desiccant 8. The silica gel desiccant 8 can quickly absorb a part of the moisture when the air just enters the inner tank 7, thereby reducing the workload of the subsequent desiccant;

[0023] An exhaust cavity 603 is provided inside the middle pot 6 below the support plate 602, and a straight slot communication portion 604 communicating with the inner chamber of the hollow column shell 1 is provided on the inner wall of the middle pot 6 on one side of the exhaust cavity 603. A flow guide pipe is integrally formed at the center of the bottom end of the hollow column shell 1, and the top end of the flow guide pipe extends into the exhaust cavity 603, and the bottom end of the flow guide pipe extends to the inside of the exhaust portion 4;

[0024] The support tray 602 supports the silica gel desiccant 8 and molecular sieve desiccant 9 in the middle tank 6 and the inner tank 7, while the ventilation tray 601 supports the activated alumina desiccant 10. The air passing through the activated alumina desiccant 10 will enter the exhaust chamber 603 from the straight slot connecting portion 604, and finally be discharged through the exhaust portion 4 to be used by the oxygen preparation device.

[0025] When the embodiment of the present application is in use, the staff first connects the exhaust part 4 to the air inlet end of the industrial oxygen preparation device. When the industrial oxygen preparation device starts working, the staff turns on the blower 3 to work. The blower 3 provides a stable and strong airflow through supercharging to push the air into the subsequent filter element and desiccant, ensuring the stability of air flow and pressure, and ensuring the smooth progress of the entire filtering and dehumidification process. After passing through the air inlet pipe 2, the air will first enter the glass fiber filter element 5. The glass fiber filter element 5 adopts a dense fiber structure, which can effectively filter large particles in the air, such as dust, sand and other impurities, and firmly capture the solid particles in the air to prevent large particles from entering the subsequent desiccant and preparation device, thereby effectively protecting the moisture absorption capacity of the subsequent desiccant and the normal operation of the equipment. The filtered air enters the inner tank 7. At this time, the air will be evenly diffused from the central axis of the hollow column shell 1 to the outside, and pass through different silica gel desiccant 8, separators 9 in turn. The air diffusion direction of the sub-sieve desiccant 9 and the activated alumina desiccant 10 is perpendicular to the air intake direction, so that the airflow passes through each layer of desiccant evenly, avoiding the airflow being too concentrated in a certain part, ensuring that each layer of desiccant can be fully utilized, thereby maximizing the contact efficiency between air and desiccant. In this process, the silica gel desiccant 8 has a large specific surface area and can quickly absorb moisture in the air, especially the adsorption of water vapor is very rapid, and can quickly reduce the air humidity. The hygroscopic effect of the molecular sieve desiccant 9 is more delicate than that of silica gel, and can further remove moisture in the air. The activated alumina desiccant 10 has good hygroscopic properties, especially it can continue to work effectively under low humidity. As the last line of defense for moisture removal, it further removes trace moisture, makes the air completely dry, and provides ideal humidity conditions for the oxygen separation process. The air treated by layers of desiccant has reduced humidity and is discharged into the industrial oxygen preparation device through the exhaust part 4.

Claims

1. An industrial oxygen production device for removing moisture and dust, characterized in that: The invention comprises a hollow cylindrical shell (1) and an air intake pipe (2) installed at the center position of the top end of the hollow cylindrical shell (1), wherein a blower (3) is installed at the top end of the air intake pipe (2), an exhaust portion (4) is installed at the center position of the bottom end of the hollow cylindrical shell (1), a central liner (6) is integrally formed at the center position inside the hollow cylindrical shell (1), and a supporting tray (602) is integrally formed at one end inside the central liner (6), an inner liner (7) is fixed at the top end of the supporting tray (602), a ventilation tray (601) is fixed on the outer wall of the central liner (6), and the inner liner (7) is integrally formed with the inner liner (6). ), and the interior of the middle tank (6) are respectively filled with silica gel desiccant (8) and molecular sieve desiccant (9); the chamber of the hollow cylindrical shell (1) above the ventilation tray (601) is filled with activated alumina desiccant (10); the blower (3) is used to send air into the air inlet pipe (2) and the interior of the glass fiber filter element (5); the filtered air enters the inner tank (7) and diffuses outward from the central axis of the hollow cylindrical shell (1), passes through the silica gel desiccant (8), the molecular sieve desiccant (9), and the activated alumina desiccant (10) in sequence, and is discharged from the exhaust part (4).

2. An industrial oxygen production device for removing moisture and dust according to claim 1, characterized in that: The exhaust portion (4) adopts a T-shaped three-way pipe.

3. The industrial oxygen production device for removing moisture and dust according to claim 1, characterized in that: The air inlet pipe (2) is provided with a conical chamber (201) for communicating with the glass fiber filter element (5), and the diameter of the conical chamber (201) gradually decreases from one end close to the blower (3) to the other end.

4. The industrial oxygen production device for removing moisture and dust according to claim 1, characterized in that: The middle liner (6) and the inner liner (7) are made of stainless steel components.

5. An industrial oxygen production device for removing moisture and dust according to claim 4, characterized in that: An exhaust cavity (603) is provided inside the middle pot (6) below the support tray (602), and a straight slot communication portion (604) communicating with the internal chamber of the hollow cylindrical shell (1) is provided on the inner wall of the middle pot (6) on one side of the exhaust cavity (603).

6. The industrial oxygen production device for removing moisture and dust according to claim 5, characterized in that: A flow guide tube is integrally formed at the center position of the bottom end of the hollow column shell (1), the top end of the flow guide tube extends into the exhaust cavity (603), and the bottom end of the flow guide tube extends into the interior of the exhaust portion (4).

Images