Miniature alcohol separation membrane filter

Abstract

The utility model discloses a miniature alcohol separation membrane filter, which belongs to the technical field of membrane filters and comprises a tank body, two support pore plates are arranged in the tank body, filter membranes are attached to the support pore plates, and the inside of the tank body is longitudinally divided into a high-pressure area, a medium-pressure area and a low-pressure area. A pressure control assembly used for controlling the internal pressure of the high-pressure area, the medium-pressure area and the low-pressure area is arranged on the periphery of the tank body. The pressure control assembly comprises four sealing cylinders, sealing blocks are arranged in the four sealing cylinders in a sealed and sliding mode, and one-way valves are arranged at the output ends of the sealing cylinders and the sealing blocks. According to the miniature alcohol separation membrane filter, the high-pressure area, the medium-pressure area and the low-pressure area are arranged in the tank body, continuous multi-stage filtration is formed, impurities and particles in a solution can be effectively removed through the multi-stage filtration and the arrangement of the two layers of filter membranes, and the purity and the quality of a product are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of membrane filters, in particular to a micro alcohol separation membrane filter. Background Art

[0002] Alcohol compounds are increasingly used in our daily lives. In the production of alcohols, precipitates or suspended solid particles, such as impurities, impurity particles, metal ions, etc., are sometimes produced. These precipitates will reduce the purity and quality of the product and need to be separated by filtration. Membrane filters are a commonly used filtration equipment that uses the microporous structure of the membrane to separate solid particles, microorganisms, solutes, etc., and pass clean solutions through to achieve the purpose of separation and purification. Membrane filters have the advantages of simple operation and low energy consumption, and have gradually become a common method for material separation and purification.

[0003] In order to improve the efficiency of membrane filtration, the feed end is often pressurized to push the liquid to flow quickly through the filter membrane. However, when pressurizing, it takes a long time to reach the target pressure, the energy consumption is high, and the pressure is difficult to control. When the pressure at the feed end is too high, it may cause the ingredients in the product to be squeezed or destroyed, affecting the quality of the product.

[0004] To this end, we proposed a micro alcohol separation membrane filter to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems of long time consumption and high energy consumption in reaching target pressure during membrane filtration in the prior art, and proposes a micro alcohol separation membrane filter.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A micro alcohol separation membrane filter comprises a tank body, wherein two supporting orifice plates are arranged in the tank body, filter membranes are attached to the supporting orifice plates, and the interior of the tank body is longitudinally divided into a high-pressure area, a medium-pressure area and a low-pressure area, and a pressure control component for controlling the internal pressures of the high-pressure area, the medium-pressure area and the low-pressure area is arranged on the periphery of the tank body;

[0008] The pressure control assembly comprises four sealing cylinders, the input ends of the four sealing cylinders are all connected to the low-pressure area, the output ends of two of the sealing cylinders are connected to the high-pressure area, and the output ends of the other two of the sealing cylinders are connected to the medium-pressure area, and sealing blocks are provided in the four sealing cylinders for sealing and sliding, and one-way valves are provided on the output ends of the sealing cylinders and the sealing blocks, and a push rod is fixedly provided at the bottom of the sealing block;

[0009] A control ring for driving the push rod to move axially is rotatably arranged outside the tank body, a motor is arranged at the bottom of the tank body, and a gear transmission mechanism is arranged between the motor and the control ring.

[0010] Preferably, the sealing cylinder is a structure with closed ends, the push rod passes through the bottom end of the sealing cylinder and slides in a sealing manner with the sealing cylinder, and the cross section of the push rod is non-circular.

[0011] Preferably, the effective length of the sealing cylinder connected to the high-pressure zone is greater than the effective length of the sealing cylinder connected to the medium-pressure zone.

[0012] Preferably, a guide ring groove 1 is provided on the outer wall of the control ring, a guide ring groove 2 is provided on the inner wall of the control ring, a guide column is fixedly arranged on the bottom end of the push rod, the guide column corresponding to the sealing cylinder connected to the high-pressure zone is located in the guide ring groove 1, and the guide column corresponding to the sealing cylinder connected to the medium-pressure zone is located in the guide ring groove 2.

[0013] Preferably, the guide ring groove 1 and the guide ring groove 2 are both wavy, and the longitudinal drop of the guide ring groove 1 is greater than that of the guide ring groove 2.

[0014] Preferably, the gear transmission mechanism comprises a gear fixedly arranged at the output end of the motor, and the inner wall of the control ring is provided with teeth matching the gear.

[0015] Preferably, the supporting orifice plate is a spherical panel that bulges upward.

[0016] To sum up, the technical effects and advantages of the utility model are as follows: the micro alcohol separation membrane filter forms continuous multi-stage filtration by arranging high-pressure zone, medium-pressure zone and low-pressure zone in the tank body. Through multi-stage filtration and the setting of two layers of filter membranes, impurities and particles in the solution can be effectively removed, and the purity and quality of the product can be improved. In addition, the setting of two layers of filter membranes can share the filtration pressure, reduce the pollution and clogging of the single-layer membrane, extend the service life of the membrane, and reduce the frequency of cleaning and replacement.

[0017] Secondly, by setting up a pressure control component, the gas in the low-pressure area is pumped to the high-pressure area and the medium-pressure area, and the pumping volume in the high-pressure area is greater than that in the medium-pressure area. Therefore, a stepped pressure difference environment is formed in the high-pressure area, the medium-pressure area and the low-pressure area. It is formed by reducing pressure on one side and pressurizing on the other side. This can promote the solution to pass through the membrane pores, accelerate the filtration rate, improve the filtration efficiency, and achieve the target pressure difference twice as fast. At the same time, it reduces the risk of excessive pressure at the feed end causing the ingredients in the product to be squeezed or destroyed, affecting the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0019] Figure 2 The utility model is a schematic diagram of the cross-sectional structure Figure 1 ;

[0020] Figure 3 The utility model is a schematic diagram of the cross-sectional structure Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the internal structure of the sealing cylinder of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the control ring in the utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the utility model when viewed from above.

[0024] In the figure: 1. tank body; 11. high pressure area; 12. medium pressure area; 13. low pressure area; 2. support orifice plate; 3. filter membrane; 4. pressure control assembly; 41. sealing cylinder; 42. push rod; 43. sealing block; 44. guide column; 5. control ring; 51. guide ring groove 1; 52. guide ring groove 2; 53. teeth; 6. motor; 61. gear. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Reference Figure 1-3 A micro alcohol separation membrane filter comprises a tank body 1, a feeding pipe is arranged on the top of the tank body 1, a discharging pipe is arranged on the bottom of the tank body 1, both the feeding pipe and the discharging pipe are provided with electromagnetic valves for controlling the feeding and discharging of the tank body 1, two supporting orifice plates 2 are arranged in the tank body 1, a filter membrane 3 is attached to the supporting orifice plates 2, and the interior of the tank body 1 is longitudinally divided into a high-pressure zone 11, a medium-pressure zone 12 and a low-pressure zone 13, after the mixed solution enters the tank body 1, it enters the high-pressure zone 11, and enters the medium-pressure zone 13 after completing one filtration. 2. Then, secondary filtration is performed and the filtration is completed in the low-pressure zone 13. After a certain amount of filtration is accumulated, the filtration is discharged through the discharge pipe. By arranging the high-pressure zone 11, the medium-pressure zone 12 and the low-pressure zone 13 in the tank body 1, a continuous multi-stage filtration is formed. Through the multi-stage filtration and the setting of the two-layer filter membrane 3, impurities and particles in the solution can be effectively removed, and the purity and quality of the product can be improved. In addition, the setting of the two-layer filter membrane 3 can share the filtration pressure, reduce the pollution and clogging of the single-layer membrane, extend the service life of the membrane, and reduce the frequency of cleaning and replacement.

[0028] A pressure control assembly 4 for controlling the internal pressures of the high-pressure zone 11 , the medium-pressure zone 12 and the low-pressure zone 13 is disposed on the outer periphery of the tank body 1 .

[0029] Reference Figure 1-3The supporting orifice plate 2 is a spherical panel that is raised upward. On the one hand, it can provide better support and improve the pressure resistance of the filter membrane 3. Secondly, it can increase the filtration area and improve the filtration efficiency. Finally, the raised supporting orifice plate 2 is high in the middle and low on the sides, and the filtered impurities can accumulate on both sides, reducing the pollution and blockage of the filter membrane 3 and reducing the frequency of cleaning and replacement.

[0030] The pressure control component 4 includes four sealing cylinders 41, and the input ends of the four sealing cylinders 41 are all connected to the low-pressure zone 13, wherein the output ends of two sealing cylinders 41 are connected to the high-pressure zone 11, and the output ends of the other two sealing cylinders 41 are connected to the medium-pressure zone 12. Therefore, the four sealing cylinders 41 all take in air from the low-pressure zone 13 and discharge it to the high-pressure zone 11 and the medium-pressure zone 12 respectively, so as to form a pressure difference between the high-pressure zone 11, the medium-pressure zone 12 and the low-pressure zone 13. Sealing blocks 43 are sealed and slidably arranged in the four sealing cylinders 41, and one-way valves are arranged on the output ends of the sealing cylinders 41 and the sealing blocks 43. The one-way valve only allows the gas to flow in one direction from the low-pressure zone 13 to the high-pressure zone 11 or the medium-pressure zone 12. A push rod 42 is fixedly arranged at the bottom of the sealing block 43. The axial reciprocating motion of the push rod 42 can drive the sealing block 43 to reciprocate in the sealing cylinder 41, and cooperate with the one-way valve to realize the process of exhaust and exhaust.

[0031] Reference Figure 2-4 , the effective length of the sealing cylinder 41 connected to the high-pressure area 11 is greater than the effective length of the sealing cylinder 41 connected to the medium-pressure area 12. Therefore, after the same exhaust process, the amount of air exhausted in the sealing cylinder 41 connected to the high-pressure area 11 is larger, and the amount of air exhausted in the sealing cylinder 41 connected to the medium-pressure area 12 is smaller. Therefore, a higher pressure will be formed in the high-pressure area 11, and a medium pressure will be formed in the medium-pressure area 12. The low-pressure area 13 will form a negative pressure due to the exhaust. Since the air is exhausted from the low-pressure area 13 and transported to the high-pressure area 11 and the medium-pressure area 12, the high-pressure area 11 and the medium-pressure area 12 will be more negative. Zone 12 and low-pressure zone 13 form a stepped pressure difference environment, which can promote the solution to pass through the membrane pores, accelerate the filtration rate, and improve the filtration efficiency. It is formed by reducing pressure on one side and pressurizing on the other side, and the efficiency of reaching the target pressure difference is twice as fast. At the same time, it reduces the risk of excessive pressure in the high-pressure zone 11 causing the ingredients in the product to be squeezed or damaged, affecting the quality of the product. Since there is also pressure in the medium-pressure zone 12, even if the low-pressure zone 13 returns to normal pressure during the discharge process, there is still a pressure difference between the medium-pressure zone 12 and the low-pressure zone 13, which is convenient for continuous filtration.

[0032] A control ring 5 for driving the push rod 42 to move axially is provided on the outside of the tank body 1. A motor 6 is provided at the bottom of the tank body 1. A gear transmission mechanism is provided between the motor 6 and the control ring 5. The control ring 5 is driven to rotate by the motor 6, and the push rod 42 is driven to reciprocate, which is beneficial to the formation of pressure difference among the high-pressure area 11, the medium-pressure area 12 and the low-pressure area 13.

[0033] Reference Figure 2-6 A guide ring groove 1 51 is provided on the outer wall of the control ring 5, and a guide ring groove 2 52 is provided on the inner wall of the control ring 5. A guide column 44 is fixedly provided at the bottom end of the push rod 42. The guide column 44 corresponding to the sealing cylinder 41 connected to the high-pressure area 11 is located in the guide ring groove 1 51, and the guide column 44 corresponding to the sealing cylinder 41 connected to the medium-pressure area 12 is located in the guide ring groove 2 52. When the control ring 5 rotates, the guide column 44 corresponding to the sealing cylinder 41 connected to the high-pressure area 11 is pushed through the guide ring groove 1 51, and the guide column 44 corresponding to the sealing cylinder 41 connected to the medium-pressure area 12 is pushed through the guide ring groove 2 52, thereby driving all the push rods 42 to move axially and keeping the movement frequency of the four push rods 42 consistent.

[0034] Reference Figure 5-6 The guide ring groove 1 51 and the guide ring groove 2 52 are both wavy in shape. When the control ring 5 rotates, the guide ring groove 1 51 and the guide ring groove 2 52 drive the push rod 42 to achieve reciprocating motion, and the longitudinal drop of the guide ring groove 1 51 is greater than that of the guide ring groove 2 52, thereby ensuring that the movement stroke of the push rod 42 matches the sealing tube 41 of different lengths.

[0035] Reference Figure 6 The gear transmission mechanism includes a gear 61 fixedly arranged at the output end of the motor 6, and the inner wall of the control ring 5 is provided with teeth 53 adapted to the gear 61. When the motor 6 rotates, the gear 61 is driven to rotate, and the control ring 5 is driven to rotate under the meshing action of the gear 61 and the teeth 53.

[0036] Reference Figure 4 The sealing cylinder 41 is a closed structure at both ends. The push rod 42 passes through the bottom end of the sealing cylinder 41 and slides in a sealed manner with the sealing cylinder 41 to ensure the airtightness inside the sealing cylinder 41. The cross-section of the push rod 42 is non-circular, and the push rod 42 is circumferentially limited to reduce the risk of circumferential deflection of the push rod 42.

[0037] Working principle:

[0038] First, start the motor 6, and drive the control ring 5 to rotate through the motor 6. When the control ring 5 rotates, the guide column 44 corresponding to the sealing cylinder 41 connected to the high-pressure area 11 is pushed through the guide ring groove 1 51, and the guide column 44 corresponding to the sealing cylinder 41 connected to the medium-pressure area 12 is pushed through the guide ring groove 2 52, thereby driving all the push rods 42 to move axially, and keeping the movement frequency of the four push rods 42 consistent. Through the axial reciprocating motion of the push rods 42, the sealing block 43 can be driven to reciprocate in the sealing cylinder 41, and cooperate with the one-way valve to realize the process of exhaustion. The amount of air exhausted in the sealing cylinder 41 connected to the high-pressure area 11 is larger, and the amount of air exhausted in the sealing cylinder 41 connected to the medium-pressure area 12 is smaller. Therefore, a higher pressure will be formed in the high-pressure area 11, a medium pressure will be formed in the medium-pressure area 12, and a negative pressure will be formed in the low-pressure area 13 due to the exhaust.

[0039] The mixed solution is injected into the high-pressure zone 11, and after completing the first filtration under the action of the pressure difference, it enters the medium-pressure zone 12, and then undergoes the second filtration and enters the low-pressure zone 13 to complete the filtration. After accumulating a certain amount, it is discharged through the discharge pipe.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A micro alcohol separation membrane filter, comprising a tank body (1), characterized in that: Two supporting orifice plates (2) are arranged in the tank body (1), and filter membranes (3) are attached to the supporting orifice plates (2), so as to longitudinally divide the interior of the tank body (1) into a high-pressure area (11), a medium-pressure area (12), and a low-pressure area (13); and a pressure control component (4) for controlling the internal pressures of the high-pressure area (11), the medium-pressure area (12), and the low-pressure area (13) is arranged on the outer periphery of the tank body (1); The pressure control assembly (4) comprises four sealing cylinders (41), the input ends of the four sealing cylinders (41) are all in communication with the low-pressure area (13), the output ends of two of the sealing cylinders (41) are in communication with the high-pressure area (11), and the output ends of the other two of the sealing cylinders (41) are in communication with the medium-pressure area (12), sealing blocks (43) are sealingly and slidably arranged in the four sealing cylinders (41), one-way valves are arranged on the output ends of the sealing cylinders (41) and the sealing blocks (43), and a push rod (42) is fixedly arranged at the bottom of the sealing block (43); A control ring (5) for driving the push rod (42) to axially move is rotatably arranged outside the tank body (1), a motor (6) is arranged at the bottom of the tank body (1), and a gear transmission mechanism is arranged between the motor (6) and the control ring (5).

2. A micro alcohol separation membrane filter according to claim 1, characterized in that: The sealing cylinder (41) is a structure with both ends closed, the push rod (42) penetrates the bottom end of the sealing cylinder (41) and slides in a sealed manner with the sealing cylinder (41), and the cross section of the push rod (42) is non-circular.

3. A micro alcohol separation membrane filter according to claim 1, characterized in that: The effective length of the sealing cylinder (41) connected to the high-pressure area (11) is greater than the effective length of the sealing cylinder (41) connected to the medium-pressure area (12).

4. A micro alcohol separation membrane filter according to claim 2, characterized in that: The outer wall of the control ring (5) is provided with a guide ring groove 1 (51), and the inner wall of the control ring (5) is provided with a guide ring groove 2 (52). A guide column (44) is fixedly arranged at the bottom end of the push rod (42). The guide column (44) corresponding to the sealing cylinder (41) connected to the high-pressure area (11) is located in the guide ring groove 1 (51), and the guide column (44) corresponding to the sealing cylinder (41) connected to the medium-pressure area (12) is located in the guide ring groove 2 (52).

5. A micro alcohol separation membrane filter according to claim 4, characterized in that: The guide ring groove 1 (51) and the guide ring groove 2 (52) are both wavy in shape, and the longitudinal drop of the guide ring groove 1 (51) is greater than that of the guide ring groove 2 (52).

6. A micro alcohol separation membrane filter according to claim 1, characterized in that: The gear transmission mechanism comprises a gear (61) fixedly arranged at the output end of the motor (6), and the inner wall of the control ring (5) is provided with teeth (53) matching the gear (61).

7. The micro alcohol separation membrane filter according to claim 1, characterized in that: The supporting orifice plate (2) is in the form of a spherical panel that bulges upward.

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