Dehydration device based on molecular sieve

Abstract

The dehydration device comprises a shell, a detachable upper cover and a filter material located in the shell, the cover is provided with a liquid inlet and a liquid discharge pipe from bottom to top, the liquid discharge pipe is of a hollow structure, one side of the liquid discharge pipe is provided with a through hole communicated with the outside, the other side of the liquid discharge pipe is provided with a blind hole, and the periphery of the pipe wall of the liquid discharge pipe is connected with the filter material. A plurality of hole structures are formed in the pipe wall, connected with the filter material, of the liquid discharging pipe, and the filter material comprises loaded molecular sieve filler. The device can fully utilize the adsorption characteristic of the molecular sieve to remove moisture in the organic solvent, and is simple, low in cost and good in dehydration effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of organic solvent dehydration devices, and in particular relates to a dehydration device based on molecular sieves. Background Art

[0002] A large amount of organic solvents are used in existing industrial production. During the production, storage and transportation of these organic solvents, due to their own properties, weather or other factors, there are different degrees of excessive water content. For some industrial production, excessive water content will directly reduce the performance indicators of the final product. Therefore, how to effectively remove water from organic solvents and realize industrial production is an important issue.

[0003] However, the existing organic solvent dehydration devices are complex, the dehydration cost is high, and the dehydration efficiency is low. Summary of the invention

[0004] The present invention overcomes the defects of the prior art and provides a dehydration device based on molecular sieves. The device is simple and efficient and can fully utilize the adsorption characteristics of molecular sieves to remove water from organic solvents.

[0005] The technical solution of the present invention is as follows:

[0006] A molecular sieve-based dehydration device comprises a shell, a detachable cover and a filter material located in the shell, wherein the cover is provided with a liquid inlet and a drain pipe from bottom to top, the drain pipe is a hollow structure, one side of the drain pipe is a through hole connected to the outside, and the other side is a blind hole, the drain pipe wall is connected to the filter material on all sides, and a plurality of hole structures are opened on the wall of the drain pipe connected to the filter material; the filter material contains a loaded molecular sieve filler.

[0007] Preferably, one side of the cover is in contact with the filter material.

[0008] Preferably, the cover body and the shell are connected in a threaded seal, which makes it easy to open the cover and the shell to inspect and clean the dehydration device.

[0009] Preferably, the filter material is in sheet form when unfolded, and one side of the filter material is connected to the drain pipe by bonding, and is wound into a cylindrical shape with the drain pipe as the center and sealed at both ends. The size of the cylinder is determined according to the size of the shell to ensure that a certain gap is maintained between the filter material and the shell. The two ends of the filter material are sealed to ensure that the solvent can only pass through the filter material before it can lead to the drain pipe. Further, the diameter of the cylinder is less than or equal to 4 / 5 of the diameter of the shell.

[0010] Preferably, the base material of the filter material is a non-woven fabric, and the non-woven fabric is loaded with a molecular sieve filler. The molecular sieve filler is preferably a NA zeolite molecular sieve filler.

[0011] Preferably, the cover body and the drain pipe are connected by welding.

[0012] The molecular sieve-based dehydration device can be widely used in the dehydration of organic solvents.

[0013] Beneficial effects of the utility model:

[0014] The utility model utilizes the adsorption characteristics of molecular sieves to fully remove moisture from the solvent to achieve the purpose of dehydration, thereby obtaining a high-purity solvent. The molecular sieve structure contains regularly arranged micropores and channels, has a strong adsorption capacity, has a strong adsorption capacity for polar molecules, and is an excellent dehydrating agent. The non-woven filter material loaded with molecular sieve fillers is wound into a cylindrical structure to form a multi-layer filtration structure, so that the solvent can fully contact the molecular sieve to ensure the dehydration effect.

[0015] The utility model can be widely used in the dehydration of various polar solvents, has simple device, low cost and good dehydration effect, and solves the problems of complexity and high cost of existing various polar solvent dehydration devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the filter material in the utility model;

[0018] Figure 3 It is a schematic diagram of the unfolding of the filter material in the utility model;

[0019] Among them: 1-liquid inlet; 2-liquid discharge pipe; 3-cover body; 4-shell; 5-filter material; 6-hole structure. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] As shown in 1-3, a molecular sieve-based dehydration device includes a shell 4, a cover 3 and a filter material 5 located inside the shell 4, the cover 3 is connected to the shell 4 by a threaded seal, a cavity is provided inside the shell 4, and the cover 3 is provided with a liquid inlet 1 and a drain pipe 2 from bottom to top; the cover 3 and the drain pipe 2 are welded and connected, the drain pipe 2 is a hollow structure, one side of the drain pipe 2 is a through hole connected to the outside, and the other side is a blind hole, and the tube wall of the drain pipe 2 is connected to the filter material 5 on all sides; one side of the cover 3 is in contact with the filter material 5, and the tube connected to the filter material 5 and the drain pipe 2 located in the cover 3 A plurality of pore structures 6 are provided on the wall. The base material of the filter material 5 is a non-woven fabric, and the non-woven fabric is loaded with NA molecular sieve filler. The filter material 5 is in sheet form when unfolded. One side of the filter material 5 is bonded to the drain pipe 2 and wound into a cylindrical shape with the drain pipe 2 as the center. The diameter of the cylinder is 4 / 5 of the diameter of the shell, ensuring a certain gap between the filter material 5 and the shell 4. After winding, the two ends of the filter material 5 are sealed to ensure that the solvent can only pass into the drain pipe 2 after being filtered by the filter material; the dehydrated solvent flows to the drain pipe 2 through the pore structure 6, flows to the outside, and is connected to a liquid storage tank or other equipment.

[0023] Embodiment: Ethanol (95%) is fed into the dehydration device housing 4 from the liquid inlet 1 through a high-pressure pump. The housing 4 is provided with a filter material 5. Under pressure, the 95% ethanol passes through the filter material 5 layer by layer to fully contact with the molecular sieve in the filter material 5 and absorb water. The dehydrated ethanol flows out of the dehydration device from the drain pipe 2 through the hole structure 6 on the drain pipe 2. After testing, the purity of the dehydrated ethanol is 99.7%-99.9%, and the water content is reduced from 5% to 0.1%-0.3%, and the dehydration effect is good.

[0024] In addition to being suitable for ethanol, the utility model can also be widely used in the dehydration treatment of other polar organic solvents such as methanol, acetone, isopropanol, etc. The device is simple, the dehydration effect is good, and the efficiency is high.

Claims

1. A dehydration device based on molecular sieve, characterized in that: The invention comprises a shell (4), a detachable cover (3) and a filter material (5) located in the shell (4); the cover (3) is provided with a liquid inlet (1) and a liquid discharge pipe (2) from bottom to top; the liquid discharge pipe (2) is a hollow structure; one side of the liquid discharge pipe (2) is a through hole connected to the outside, and the other side is a blind hole; the tube wall of the liquid discharge pipe (2) is connected to the filter material (5) on all sides; a plurality of hole structures (6) are formed on the tube wall of the liquid discharge pipe (2) connected to the filter material (5); and the filter material (5) contains a loaded molecular sieve filler.

2. The dehydration device according to claim 1, characterized in that: One side of the cover body (3) is in contact with the filter material (5).

3. The dehydration device according to claim 1, characterized in that: The cover body (3) and the housing (4) are sealed and connected via threads.

4. The dehydration device according to claim 1, characterized in that: The filter material (5) is in sheet form when unfolded, one side of the filter material (5) is bonded to the wall of the drainage pipe (2), and is wound into a cylindrical shape with the drainage pipe (2) as the center and both ends are sealed.

5. The dehydration device according to claim 4, characterized in that: The diameter of the cylinder is less than or equal to 4 / 5 of the diameter of the shell.

6. The dehydration device according to claim 1 or 5, characterized in that: The base material of the filter material (5) is a non-woven fabric, and the non-woven fabric is loaded with a molecular sieve filler.

7. The dehydration device according to claim 6, characterized in that: The molecular sieve filler is NA zeolite molecular sieve filler.

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