Enhanced molecular sieve dehydration device
By using the dehydration chambers on both the inner and outer sides and the secondary dehydration operation, the problem of preferential adsorption of water in the pores on the upper surface of the molecular sieve bed is solved, achieving full contact between the liquid phase and the molecular sieve, and improving the dehydration efficiency and effect.
Patent Information
- Application Number
- CN202520355212.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-03
AI Technical Summary
In existing molecular sieve dewatering devices, during the downward permeation of the liquid phase, water is preferentially adsorbed into the pores on the upper surface of the molecular sieve bed, increasing resistance, reducing flow rate and contact time, and affecting dewatering efficiency and effect.
It adopts a dehydration chamber structure with inner and outer sides. The liquid phase is input from the outside. The molecular sieve moves through buoyancy and comes into full contact with the liquid phase. Combined with the secondary dehydration operation, it ensures that the liquid phase and the molecular sieve are in full contact, reducing resistance and improving efficiency.
This achieves full contact between the liquid phase and the molecular sieve, improving the dewatering effect and efficiency, reducing the resistance of the densely packed molecular sieve, and ensuring the stability of the dewatering effect.
Smart Images
Figure CN223846289U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to chemical product dehydration technical field especially, it relates to a kind of enhanced molecular sieve dehydration device. BACKGROUND
[0002] Due to the good adsorption effect of molecular sieve, it is often used when monomer alkane is dehydrated. When the existing molecular sieve is used for dehydration treatment, it is usually carried out in a dehydration tank with molecular sieve. The design and operation mode of the dehydration tank have an important influence on the dehydration effect of the molecular sieve. When monomer alkane is dehydrated in the prior art, the liquid phase usually penetrates from the upper surface of the molecular sieve bed layer downward. At this time, the following problems exist: firstly, during the downward movement of the liquid phase, water molecules preferentially enter the molecular sieve pores on the upper surface of the molecular sieve bed layer. As a result, the molecular sieve pores on the upper surface of the molecular sieve bed layer are filled with adsorbed water first. However, after the molecular sieve pores on the upper surface of the molecular sieve bed layer adsorb water, the resistance generated by the molecular sieve pores themselves reduces the flow rate of the liquid phase to some extent, thereby resulting in low dehydration efficiency and dehydration effect. Secondly, the liquid phase usually flows in a straight upward and downward manner in the dehydration tank. Improper control of the flow rate of the liquid phase also affects the contact time between the liquid phase and the molecular sieve, thereby reducing the dehydration effect. Therefore, there is an urgent need for an enhanced molecular sieve dehydration device that can ensure dehydration effect and dehydration efficiency. SUMMARY
[0003] The utility model aims to provide a kind of enhanced molecular sieve dehydration device, can make the liquid phase required to be dehydrated and molecular sieve contact fully, ensure dehydration effect and dehydration efficiency.
[0004] The utility model adopts the following technical solutions:
[0005] An enhanced molecular sieve dehydration device includes a tank body, a separation cover is coaxially arranged in the tank body, and two dehydration cavities are formed in the tank body on the inner and outer sides of the separation cover. The tank body is provided with an input pipeline that is in communication with the dehydration cavity on the outer side at the bottom of the tank body, and the dehydration cavity on the inner side is provided with a discharge pipeline at the bottom. Molecular sieve is placed in each dehydration cavity. The separation cover is provided with an overflow port at the upper part, and a filter screen is arranged at the overflow port.
[0006] Preferably, a containing frame is detachably arranged in each dehydration cavity, and the molecular sieve is arranged in the containing frame.
[0007] Preferably, the inner cavity of the tank body is in a cylindrical structure, the separation cover is in a cylindrical structure that penetrates upward and downward, and the containing frame is matched with the structure of the dehydration cavity.
[0008] Preferably, the accommodating frame comprises a sealing plate on the top, which covers the top end of the separation cover in the initial state and abuts against the inner wall of the tank body; a plurality of annular outer support net plates are arranged below the sealing plate and are connected to each other; an inner support net plate is coaxially arranged in the outer support net plate; and a connecting portion is arranged in the middle of the inner support net plate and is connected to the sealing plate.
[0009] Preferably, the inner and outer sides of the outer support net plate and the outer side of the inner support net plate are all upwardly provided with a convex edge.
[0010] Preferably, the outer support net plates are integrally formed through a discharge channel, the bottom of the discharge channel is provided with a concentrated discharge port, the concentrated discharge port is provided with a discharge valve; the discharge channel is provided with an outer branch discharge port corresponding to each outer support net plate, and the outer branch discharge port is detachably provided with an outer cover plate.
[0011] Preferably, the connecting portion is an inner hollow structure, the bottom of the connecting portion is provided with an opening, the connecting portion is provided with an inner branch discharge port corresponding to the inner support net plate, and each inner branch discharge port is detachably provided with an inner cover plate.
[0012] Preferably, the tank body is a double-layer structure and is provided with an electric heating pipe inside; the connecting portion is a cylindrical structure and is provided with an opening at the bottom; the tank body is provided with an inner heating cover in the middle; the inner heating cover is provided with an electric heating pipe inside; and the tank body is provided with an operation panel for controlling the operation of the electric heating pipe.
[0013] Preferably, the top end of the sealing plate is upwardly provided with an exhaust net cover; the top end of the tank body is provided with a dehumidification port which is in communication with the inside of the tank body; and the dehumidification port is provided with a valve.
[0014] Preferably, the top end of the tank body is detachably provided with a sealing cover; the sealing plate is connected to the sealing cover; and the sealing cover is connected to a lifting mechanism arranged on the tank body.
[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the tank body is divided into two dehydration cavities, the liquid phase required to be dehydrated is input from the bottom of the outer dehydration cavity and is output from the bottom of the inner dehydration cavity, the liquid phase can be dehydrated twice, and the dehydration effect is guaranteed; in addition, the molecular sieve is subjected to buoyancy and moves in the outer dehydration cavity by using the rising of the liquid phase, the resistance generated by the close packing of the molecular sieve can be effectively reduced, the liquid phase can be fully contacted with the molecular sieve, and the dehydration efficiency and effect are guaranteed. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is a front view of the embodiment of the application.
[0017] Fig. 2 Figure 2 is a partial cross-sectional view of the tank body of the embodiment of the present application;
[0018] Fig. 3 Figure 3 is a schematic view of the structure of the outer support net plate and the inner support net plate of the embodiment of the present application. DETAILED DESCRIPTION
[0019] The present application will be described in detail below in conjunction with the drawings and embodiments:
[0020] As shown in Figs. 1 to 3 The present application relates to a kind of enhanced molecular sieve dehydration devices, including tank body 1, tank body 1 inside coaxial arrangement has up and down through separation cover 2, two dehydration chambers 3 are formed in the tank body 1 of the inside and outside of separation cover 2, wherein tank body 1 bottom is provided with input pipeline 4, for the transport of required dehydration liquid phase, input pipeline 4 is communicated with the inside of dehydration chamber 3 located at outside, and conveying pipe is provided with delivery pump, to realize the pumping of required dehydration liquid phase into the dehydration tank of outside;Preferably, the bottom of the outside dehydration chamber 3 of the present embodiment is provided with flow guide ring 5, and liquid phase conveying hole is formed in the top of flow guide ring 5 along its circumference, and filter screen is protruded upwards on the liquid phase conveying hole, and conveying pipe is connected with flow guide ring 5 in a conductive manner;Flow guide ring 5 can ensure that liquid phase enters the outside dehydration chamber 3 uniformly, to realize its full contact with molecular sieve;The bottom of the inside dehydration chamber 3 is provided with discharge pipeline 6, and valve is arranged on discharge pipeline 6, to open in time to realize the discharge of liquid phase after dehydration;Molecular sieve is placed in each dehydration chamber 3;Overflow port 7 is arranged on the upper portion of separation cover 2, for the flow of required dehydration liquid phase from the outside dehydration chamber 3 to the inside dehydration chamber 3, to realize secondary dehydration operation, and ensure dehydration effect;In addition, filter screen is arranged at overflow port 7, to avoid that molecular sieve in the outside dehydration chamber 3 is washed out and enters the inside dehydration chamber 3.Working, required dehydration liquid phase enters the outside dehydration chamber 3 from the bottom, and as liquid phase is continuously input, molecular sieve in the outside dehydration chamber 3 can be subjected to buoyancy and movement, to provide space for the movement of liquid phase, ensure the rate of liquid phase movement, and molecular sieve subjected to buoyancy movement can realize full contact with liquid phase, so that a large number of molecular sieve can participate in dehydration adsorption work, to ensure dehydration effect;Liquid phase after dehydration in the outside dehydration chamber 3 can be subjected to secondary dehydration operation by entering the inside dehydration chamber 3 through overflow port 7, to ensure dehydration effect.
[0021] Further, the dehydration cavity 3 is detachably provided with a containing frame for accommodating liquid, and the molecular sieve is arranged in the containing frame. The containing frame is arranged to facilitate the removal of the molecular sieve from the tank body 1 for replacement. The inner cavity of the tank body 1 is in a cylindrical structure, the separation cover 2 is in a cylindrical structure penetrating from top to bottom, and the containing frame is matched with the structure of the dehydration cavity 3. Specifically, the containing frame includes a top sealing plate 8, which covers the top end of the separation cover 2 in the initial state and abuts against the inner wall of the tank body 1 to achieve the sealing operation at the top and ensure that the liquid phase flows out from the overflow port 7. A plurality of annular outer support net plates 9 are arranged in layers and are connected to each other. The molecular sieve is arranged on each layer of the outer support net plate 9. The inner support net plate 10 is coaxially arranged in the outer support net plate 9. The diameter of the inner support net plate 10 matches the inner diameter of the separation cover 2. After being installed in the tank body 1, a certain liquid flow space is reserved between the bottommost inner support net plate 10 and the bottom of the tank body 1. The middle of the inner support net plate 10 is provided with a connecting portion 11, which connects a plurality of spaced inner support net plates 10. The top of the connecting portion 11 is connected with the sealing plate 8. The spacing of the outer support net plate 9 and the inner support net plate 10 can provide a certain space for the molecular sieve, which can not only reduce the resistance of the liquid phase flow, but also realize the full contact between the majority of the molecular sieve and the liquid phase, thereby ensuring the dehydration effect.
[0022] Further, the inner and outer sides of the outer support net plate 9 and the outer side of the inner support net plate 10 are provided with a convex edge 12 upward, so as to form a containing space for the molecular sieve by the convex edge 12 and the corresponding net plate, which can avoid the spilling of the molecular sieve when the containing frame is lifted out of the tank body 1. In addition, the outer support net plates 9 are integrally formed by a discharge channel 13. The outer side wall of the discharge channel 13 is preferably flush with the outer side convex edge 12 of the outer support net plate 9, and the discharge channel 13 is arranged in an arc shape coaxial with the outer support net plate 9. The bottom of the discharge channel 13 is provided with a concentrated discharge port, and the concentrated discharge port is provided with a discharge valve. In the working state, the discharge valve is in a closed state to avoid the liquid phase entering the discharge channel 13. The corresponding part of the discharge channel 13 and each outer support net plate 9 is provided with an outer branch discharge port. The outer branch discharge port is detachably provided with an outer cover plate. When the molecular sieve needs to be removed, the outer cover plate on the inner side of each outer support net plate 9 is opened, and the molecular sieve is pushed into the discharge channel 13 from the outer branch discharge port. The discharge valve is opened at the bottom of the discharge channel 13 to collect the molecular sieve, thereby improving the convenience of operation.
[0023] The connecting portion 11 is in a hollow structure, and the bottom thereof is provided in an open manner. The connecting portion 11 is provided with an inner branch discharge port 14 at a position corresponding to the inner support net plate 10. Each inner branch discharge port 14 is detachably provided with an inner cover plate 15 for the discharge operation of the molecular sieve on the inner support net plate 10.
[0024] Further, the tank body 1 is a double-layer structure, and an electric heating pipe 16 is arranged in the tank body 1; the connecting part 11 is a cylindrical structure, and the bottom of the connecting part 11 is provided with an opening; an inner heating cover 17 is arranged in the middle of the tank body 1; during operation, the connecting part 11 is sleeved outside the inner heating cover 17, and the electric heating pipe 16 is arranged in the inner heating cover 17; and an operation panel 18 for controlling the operation of the electric heating pipe 16 is arranged outside the tank body 1. The arrangement of the electric heating pipe 16 can make the inside of the tank body 1 heat up through the electric heating pipe 16 after the operation is completed, so as to evaporate and remove the moisture in the molecular sieve, regenerate the molecular sieve, and reduce the frequency of replacement of the molecular sieve. In addition, the exhaust mesh cover 19 is arranged on the top end of the sealing plate 8 in a protruding manner, the dehumidification port 20 is arranged on the top end of the tank body 1 and is in communication with the inside of the tank body 1, and a valve is arranged on the dehumidification port 20; during the process of heating, drying and dehydrating the molecular sieve, the dehumidification port 20 can be opened after a period of time; because the steam formed after the moisture evaporates at a high temperature in the tank body 1 has a smaller density than air, the steam will float upwards, which is helpful for the outward transportation of the moisture.
[0025] Further, the tank body 1 is a double-layer structure, and an electric heating pipe 16 is arranged in the tank body 1; the connecting part 11 is a cylindrical structure, and the bottom of the connecting part 11 is provided with an opening; an inner heating cover 17 is arranged in the middle of the tank body 1; during operation, the connecting part 11 is sleeved outside the inner heating cover 17, and the electric heating pipe 16 is arranged in the inner heating cover 17; and an operation panel 18 for controlling the operation of the electric heating pipe 16 is arranged outside the tank body 1. The arrangement of the electric heating pipe 16 can make the inside of the tank body 1 heat up through the electric heating pipe 16 after the operation is completed, so as to evaporate and remove the moisture in the molecular sieve, regenerate the molecular sieve, and reduce the frequency of replacement of the molecular sieve. In addition, the exhaust mesh cover 19 is arranged on the top end of the sealing plate 8 in a protruding manner, the dehumidification port 20 is arranged on the top end of the tank body 1 and is in communication with the inside of the tank body 1, and a valve is arranged on the dehumidification port 20; during the process of heating, drying and dehydrating the molecular sieve, the dehumidification port 20 can be opened after a period of time; because the steam formed after the moisture evaporates at a high temperature in the tank body 1 has a smaller density than air, the steam will float upwards, which is helpful for the outward transportation of the moisture.
Claims
1. An enhanced molecular sieve dehydration unit characterized by: The utility model provides a kind of water removal device, including tank body, the tank body is coaxially provided with the separation cover that passes through up and down, two dehydration cavities are formed in the tank body in the inside and outside of the separation cover, wherein the input pipeline that is communicated with the dehydration cavity located outside is provided in the tank body bottom, the discharge pipeline is provided in the dehydration cavity bottom located inside;Molecular sieve is placed in each dehydration cavity.
2. The enhanced molecular sieve dehydration device of claim 1, wherein: Each dehydration cavity is detachably provided with a containing frame, and the molecular sieve is placed in the containing frame.
3. The enhanced molecular sieve dehydration device of claim 2, wherein: The inner cavity of the tank body is a cylindrical structure, the separation cover is a cylindrical structure that passes through up and down, and the containing frame matches the dehydration cavity structure.
4. The enhanced molecular sieve dehydration device of claim 3, wherein: The containing frame includes a sealing plate at the top, which covers the top end of the separation cover in the initial state and abuts against the inner wall of the tank body. A plurality of annular outer support net plates are spaced below the sealing plate and connected to each other. An inner support net plate is coaxially arranged in the outer support net plate. A connecting portion is provided in the middle of the inner support net plate, and the connecting portion is connected to the sealing plate.
5. The enhanced molecular sieve dehydration device of claim 4, wherein: The inner and outer sides of the outer support net plate and the outer side of the inner support net plate are provided with a convex edge upward.
6. The enhanced molecular sieve dehydration device of claim 5, wherein: The outer support net plates are integrally formed by a discharge channel, and the discharge channel is provided with a concentrated discharge port at the bottom. The concentrated discharge port is provided with a discharge valve. The discharge channel is provided with an outer branch discharge port corresponding to each outer support net plate. The outer branch discharge port is detachably provided with an outer cover plate.
7. The enhanced molecular sieve dehydration device of claim 6, wherein: The connecting portion is an internal hollow structure with an open bottom. The connecting portion is provided with an inner branch discharge port corresponding to the inner support net plate. Each inner branch discharge port is detachably provided with an inner cover plate.
8. The enhanced molecular sieve dehydration device of claim 4, wherein: The tank body is a double-layer structure with an electric heating pipe arranged inside. The connecting portion is a cylindrical structure with an open bottom. An inner heating cover is arranged in the middle of the tank body, and an electric heating pipe is arranged in the inner heating cover. An operation panel is arranged outside the tank body to control the operation of the electric heating pipe.
9. The enhanced molecular sieve dehydration device of claim 8, wherein: The top end of the sealing plate is provided with an exhaust net cover upwardly protruding. The top end of the tank body is provided with a dehumidification port communicated with the inside. A valve is arranged on the dehumidification port.
10. The enhanced molecular sieve dehydration device of claim 4, wherein: The top end of the tank body is detachably provided with a sealing cover. The sealing plate is connected to the sealing cover. The sealing cover is connected to a lifting mechanism arranged on the tank body.