Vacuum-pumping nitrogen displacement device for molecular sieve desiccant
The molecular sieve desiccant vacuum nitrogen replacement device addresses uneven drying by using an electric blower and nitrogen protection to ensure even drying and long-term storage of molecular sieve desiccants.
Patent Information
- Application Number
- CN202420699212.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-07
AI Technical Summary
Existing molecular sieve desiccants become unevenly dried during vacuum nitrogen replacement, affecting their reuse due to uneven moisture absorption during storage.
A molecular sieve desiccant vacuum nitrogen replacement device with a drying mechanism using an electric heat blower, U-shaped flow-equalizing pipes, and a vacuum pump, along with a protective mechanism and nitrogen inert gas protection, ensures even drying and long-term storage.
Ensures even drying of molecular sieve desiccants, facilitating long-term storage and reuse by using hot air distribution and nitrogen inert gas protection.
Smart Images
Figure CN222174100U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molecular sieve desiccant activation and regeneration devices, in particular to a molecular sieve desiccant vacuum nitrogen replacement device. Background Art
[0002] Molecular sieve desiccant is a synthetic desiccant product with strong adsorption for water molecules. It is a crystalline aluminosilicate compound with regular and uniform pores in its crystal structure. The pore size is on the order of the molecular size. It only allows molecules with a diameter smaller than the pore size to enter. Therefore, it can screen the molecules in the mixture according to size, hence the name molecular sieve.
[0003] At present, since the molecular sieve desiccant absorbs some impurities in the air such as moisture during the storage process, it loses its best effect and the screening effect is affected. In order to activate and regenerate the damp molecular sieve desiccant, a vacuum nitrogen replacement device is needed. When the existing vacuum nitrogen replacement device is used, the molecular sieve desiccant that absorbs moisture is unevenly dried, which affects the reuse of the molecular sieve desiccant. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a molecular sieve desiccant vacuum nitrogen replacement device which can make the damp molecular sieve desiccant dry more evenly, facilitate long-term storage, and ensure the reuse of the molecular sieve desiccant.
[0005] Technical Solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a molecular sieve desiccant vacuum nitrogen replacement device, comprising a replacement box, a drying mechanism and a replacement mechanism, wherein four groups of legs are fixedly installed at the bottom of the replacement box, a take-in and put-out port is provided at the front end of the replacement box, and a sealing door is installed on the rotating cover of the take-in and put-out port, and the drying mechanism comprises an electric heat blower, which is fixedly installed at the top of the replacement box, a blast pipe is installed at the top of the replacement box, and the input end of the blast pipe is connected to the output end of the electric heat blower, and the output end of the blast pipe is fixedly connected to a shunt pipe, and multiple groups of U-shaped flow-equalizing pipes are equidistantly connected on the shunt pipe, and the U-shaped flow-equalizing pipes are connected at equidistant intervals. The bottom of both sides of the flow tube is sealed, a plurality of groups of flow equalizing holes are equidistantly arranged at the top inner sides of the plurality of groups of U-shaped flow equalizing tubes, a plurality of groups of blowing heads are equidistantly connected at the inner sides of the plurality of groups of U-shaped flow equalizing tubes, a collecting bucket is fixedly connected to the inner wall of the replacement box, a placing net is installed on the upper cover of the collecting bucket, an exhaust pipe is connected at the bottom of the collecting bucket, a pipe cap is screwed on the exhaust pipe, the replacement mechanism includes an intake pipe, the intake pipe is fixedly installed at the right end of the replacement box, the output end of the intake pipe extends into the interior of the replacement box, a docking thread is provided at the input end of the intake pipe, a valve is provided on the intake pipe, a vacuum pump is fixedly installed at the front end of the replacement box, and the input end of the vacuum pump is connected to the interior of the replacement box.
[0007] Preferably, a protective mechanism is installed inside the replacement box, and the protective mechanism includes two groups of protective nets. The tops of the two groups of protective nets are fixedly connected to multiple groups of connecting rods. The two groups of protective nets are connected to the top of the replacement box through the multiple groups of connecting rods and are symmetrically installed inside the replacement box.
[0008] Preferably, the output end of the air intake pipe is fixedly connected to a trumpet diffuser.
[0009] Preferably, an observation window is provided on the sealed door.
[0010] Preferably, a door handle is fixedly connected to the sealed door.
[0011] Compared with the prior art, the utility model has the following beneficial effects: when in use, the air inlet pipe is connected to the external nitrogen supply pipeline, the sealing door is opened, the package of the molecular sieve desiccant stored with moisture is flatly placed on the placement net in the replacement box, the sealing door is closed, the pipe cap is opened, the valve is closed, and then the electric blower is started, the electric blower blows hot air into the shunt pipe and the U-shaped flow equalizing pipe through the blast pipe, and the hot air is then evenly blown to the molecular sieve desiccant through the blowing head, so that the molecular sieve desiccant is dried and the air inside the replacement box is removed. The moisture in the air and the water vapor generated are collected by the collecting bucket and then discharged by the exhaust pipe. After drying, tighten the pipe cap and cover it, then start the vacuum pump. After the vacuum pump draws out the vacuum inside the replacement box, open the valve, and then nitrogen can be added to the replacement box through the air inlet pipe to fill the replacement box. The molecular sieve desiccant is protected by the property of nitrogen inert gas, which is conducive to long-term storage, so that the damp molecular sieve desiccant can be dried more evenly, which is convenient for long-term storage and ensures the reuse of the molecular sieve desiccant. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;
[0013] Figure 2 It is a right-side axonometric structural schematic diagram of the utility model;
[0014] Figure 3 It is a right view structural schematic diagram of the utility model;
[0015] Figure 4 It is a schematic diagram of the axonometric cross-section structure of the utility model;
[0016] Figure 5 It is a schematic diagram of the transverse axonometric cross-sectional structure of the utility model;
[0017] Markings in the attached figure: 1. Replacement box; 2. Support leg; 3. Sealed door; 4. Air inlet pipe; 5. Valve; 6. Electric blower; 7. Blower pipe; 8. Diverter pipe; 9. U-shaped flow equalizing pipe; 10. Blowing head; 11. Vacuum pump; 12. Protective partition net; 13. Connecting rod; 14. Collecting bucket; 15. Placement net; 16. Pipe cap; 17. Trumpet diffuser; 18. Observation window; 19. Door handle. DETAILED DESCRIPTION
[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0019] Example
[0020] See also Figure 1-Figure 5The utility model discloses a molecular sieve desiccant vacuum nitrogen replacement device, comprising a replacement box 1, wherein four groups of legs 2 are fixedly installed at the bottom of the replacement box 1, a take-in and put-out port is arranged at the front end of the replacement box 1, a sealing door 3 is arranged on the rotating cover of the take-in and put-out port, an electric heat blower 6 is fixedly installed at the top of the replacement box 1, a blast pipe 7 is installed at the top of the replacement box 1, and the input end of the blast pipe 7 is connected with the output end of the electric heat blower 6, and the output end of the blast pipe 7 is fixedly connected with a shunt pipe 8, and a plurality of groups of U-shaped equalizing flow pipes 9 are equidistantly connected on the shunt pipe 8, and the bottoms of the two sides of the U-shaped equalizing flow pipe 9 are sealed, and the plurality of groups of A plurality of groups of flow-balancing holes are evenly spaced at the top of the inner side of the U-shaped flow-balancing tube 9, and a plurality of groups of blowing heads 10 are evenly spaced and connected to the inner side of the plurality of groups of U-shaped flow-balancing tubes 9. A collecting bucket 14 is fixedly connected to the inner wall of the replacement box 1, and a placing net 15 is installed on the upper cover of the collecting bucket 14. An exhaust pipe is connected to the bottom end of the collecting bucket 14, and a pipe cap 16 is screwed on the exhaust pipe. An air inlet pipe 4 is fixedly installed at the right end of the replacement box 1, and an output end of the air inlet pipe 4 extends into the interior of the replacement box 1. A docking thread is provided at the input end of the air inlet pipe 4, and a valve 5 is provided on the air inlet pipe 4. A vacuum pump 11 is fixedly installed at the front end of the replacement box 1. The input end of the air pump 11 is connected to the interior of the replacement box 1; when in use, the air inlet pipe 4 is used to connect to the external nitrogen supply pipeline, open the sealing door 3, and place the package of the damp molecular sieve desiccant flatly on the placement net 15 in the replacement box 1, then close the sealing door 3, open the pipe cap 16, close the valve 5, and then start the electric blower 6, the electric blower 6 blows hot air into the diverter pipe 8 and the U-shaped equalizing pipe 9 through the blast pipe 7, and the hot air is then blown evenly to the molecular sieve desiccant through the blowing head 10, so that the molecular sieve desiccant is dried and the inside of the replacement box 1 is removed. The moisture in the air and the water vapor generated are collected by the collecting bucket 14 and then discharged from the exhaust pipe. After drying, the pipe cap 16 is tightened and covered, and then the vacuum pump 11 is started. The vacuum pump 11 evacuates the inside of the replacement box 1 and then opens the valve 5. Nitrogen can be added to the inside of the replacement box 1 through the air inlet pipe 4, so that the nitrogen fills the inside of the replacement box 1. The molecular sieve desiccant is protected by the property of nitrogen inert gas, which is conducive to long-term storage, so that the damp molecular sieve desiccant can be dried more evenly, which is convenient for long-term storage and ensures the reuse of the molecular sieve desiccant.
[0021] A protective mechanism is installed inside the replacement box 1, and the protective mechanism includes two groups of protective screens 12. The tops of the two groups of protective screens 12 are fixedly connected to multiple groups of connecting rods 13. The two groups of protective screens 12 are connected to the top of the replacement box 1 through the multiple groups of connecting rods 13 and are installed in the replacement box 1 symmetrically front and back; by providing the protective screens 12, it is possible to prevent the air blowing head 10 from being squeezed when the molecular sieve desiccant bag is placed.
[0022] The output end of the air intake pipe 4 is fixedly connected with a trumpet diffuser 17; by providing the trumpet diffuser 17, the diffusion range of nitrogen when it is filled can be expanded, thereby accelerating the diffusion of nitrogen.
[0023] The sealing door 3 is provided with an observation window 18 ; by providing the observation window 18 , the storage condition of the molecular sieve desiccant inside the replacement box 1 can be easily observed.
[0024] The sealed door 3 is fixedly connected with a door handle 19 ; by providing the door handle 19 , the sealed door 3 can be opened and closed more conveniently.
[0025] The utility model discloses a molecular sieve desiccant vacuum nitrogen replacement device. Its working principle is that when in use, the air inlet pipe 4 is used to connect with the external nitrogen supply pipeline, the sealing door 3 is opened, the package of the molecular sieve desiccant stored with moisture is flatly placed on the placement net 15 in the replacement box 1, and then the sealing door 3 is closed, the pipe cap 16 is opened, the valve 5 is closed, and then the electric blower 6 is started. The electric blower 6 blows hot air into the diverter pipe 8 and the U-shaped equalizing pipe 9 through the blowing pipe 7, and the hot air is then blown evenly to the Molecular sieve desiccant is used to dry the molecular sieve desiccant and remove moisture from the air inside the replacement box 1. The generated water vapor is collected through the collecting bucket 14 and then discharged from the exhaust pipe. After drying, the pipe cap 16 is tightened and covered, and then the vacuum pump 11 is started. After the vacuum pump 11 evacuates the inside of the replacement box 1, the valve 5 is opened, and nitrogen can be added to the inside of the replacement box 1 through the air inlet pipe 4, so that the nitrogen fills the inside of the replacement box 1. The molecular sieve desiccant is protected by the property of the nitrogen inert gas, which is conducive to long-term storage.
[0026] The installation method, connection method or setting method of the molecular sieve desiccant vacuum nitrogen replacement device of the utility model are all common mechanical methods, and can be implemented as long as the beneficial effects can be achieved; the electric blower, valve and vacuum pump of the molecular sieve desiccant vacuum nitrogen replacement device of the utility model are purchased on the market, and technicians in this industry only need to install and operate them according to the accompanying instruction manual.
[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A molecular sieve desiccant vacuum nitrogen replacement device, comprising a replacement box (1), characterized in that: It also includes a drying mechanism and a replacement mechanism; A replacement box (1), wherein four groups of legs (2) are fixedly mounted at the bottom of the replacement box (1), a take-in and put-out opening is arranged at the front end of the replacement box (1), and a sealing door (3) is arranged on a rotating cover on the take-in and put-out opening; A drying mechanism, the drying mechanism comprising an electric heating blower (6), the electric heating blower (6) being fixedly mounted on the top of the replacement box (1), a blast pipe (7) being mounted on the top of the replacement box (1), and the input end of the blast pipe (7) being connected to the output end of the electric heating blower (6), the output end of the blast pipe (7) being fixedly connected to a diverter pipe (8), a plurality of groups of U-shaped equalizing flow pipes (9) being equidistantly connected on the diverter pipe (8), the bottoms of both sides of the U-shaped equalizing flow pipes (9) being sealed, a plurality of groups of equalizing flow holes being equidistantly arranged on the tops of the inner sides of the plurality of groups of U-shaped equalizing flow pipes (9), a plurality of groups of blowing heads (10) being equidistantly connected on the inner sides of the plurality of groups of U-shaped equalizing flow pipes (9), a collecting bucket (14) being fixedly connected to the inner wall of the replacement box (1), a placing net (15) being mounted on the upper cover of the collecting bucket (14), an exhaust pipe being connected to the bottom end of the collecting bucket (14), and a pipe cap (16) being screwed on the exhaust pipe; The replacement mechanism comprises an air intake pipe (4), the air intake pipe (4) is fixedly mounted on the right end of the replacement box (1), the output end of the air intake pipe (4) extends into the interior of the replacement box (1), the input end of the air intake pipe (4) is provided with a docking thread, a valve (5) is provided on the air intake pipe (4), a vacuum pump (11) is fixedly mounted on the front end of the replacement box (1), and the input end of the vacuum pump (11) is connected to the interior of the replacement box (1).
2. The molecular sieve desiccant vacuum nitrogen replacement device according to claim 1, characterized in that: A protective mechanism is installed inside the replacement box (1), and the protective mechanism includes two groups of protective partitions (12). The tops of the two groups of protective partitions (12) are fixedly connected to multiple groups of connecting rods (13). The two groups of protective partitions (12) are connected to the top of the replacement box (1) through the multiple groups of connecting rods (13) and are installed in the replacement box (1) in a front-to-back symmetrical manner.
3. The molecular sieve desiccant vacuum nitrogen replacement device according to claim 2, characterized in that: The output end of the air intake pipe (4) is fixedly connected to a trumpet diffuser (17).
4. The molecular sieve desiccant vacuum nitrogen replacement device as claimed in claim 3, characterized in that: The sealing door (3) is provided with an observation window (18).
5. The molecular sieve desiccant vacuum nitrogen replacement device as claimed in claim 4, characterized in that: A door handle (19) is fixedly connected to the sealed door (3).