Equipment for purifying ethanol through permeable membrane

Abstract

The utility model discloses equipment for purifying ethanol by a permeable membrane. The equipment comprises a kettle body, a kettle cover and a membrane component, a support is fixedly installed in the middle of the bottom of the inner side of the kettle body, the membrane assembly is vertically inserted into the support, the kettle cover and the kettle body are movably connected through a back hinge, the kettle cover is arranged at the top of the kettle body, a sleeve is vertically installed in the middle of the top of the kettle cover, a feeding pipe is installed in the sleeve in a penetrating mode, and an upper limiting seat is fixedly installed at the bottom of the feeding pipe and located below the kettle cover. The upper limiting seat sleeves the top of the membrane assembly, internal threads are formed in the inner wall of the sleeve, external threads are formed in the outer wall of the feeding pipe, and the external threads are meshed with the internal threads. Through threaded connection and a clamping groove limiting structure, the membrane assembly can be accurately positioned and is easy to operate, the maintenance difficulty and cost are reduced, the overall applicability of the equipment is high, membrane assembly faults, different production requirements and technology upgrading can be flexibly handled, the continuity and high efficiency of ethanol purification production are effectively guaranteed, and the production efficiency is improved. And the economic benefit and the competitiveness are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ethanol purification technical field especially relates to a kind of equipment of osmotic membrane ethanol purification. BACKGROUND

[0002] In chemical and related industries, ethanol is a very important organic solvent and chemical raw material, which has a wide application in medicine, food, energy and many other fields, and high-purity ethanol is often the key factor to ensure the quality of related products and the smooth progress of production process.

[0003] The traditional ethanol purification method mainly includes distillation method, and the distillation method realizes separation and purification based on the difference of boiling point between ethanol and other impurities, but this method has many limitations, with the continuous development of membrane technology, membrane separation technology gradually emerges in the field of liquid separation and purification, and the membrane separation process has the advantages of no phase change, low energy consumption, mild operating conditions, high separation efficiency and the like, which provides a new way for ethanol purification.

[0004] However, the existing membrane separation equipment still has some problems when applied to ethanol purification.

[0005] For example, the installation and replacement of membrane assembly are often complex, which requires professional personnel to spend a lot of time and effort to operate, which not only increases the maintenance cost of the equipment, but also when the equipment fails or needs to upgrade the membrane assembly, the long downtime will seriously affect the production efficiency.

[0006] In addition, the overall structure design of some equipment is not reasonable, which is difficult to ensure the stability and sealing performance of the membrane assembly during operation, which easily leads to unstable purification effect and liquid leakage, etc., affecting the large-scale popularization and application of membrane separation technology in the field of ethanol purification.

[0007] Therefore, how to provide a kind of osmotic membrane ethanol purification equipment with convenient membrane assembly installation and disassembly, reasonable structure design and high efficiency and stability is a problem that technicians in the field need to solve urgently. INVENTION CONTENTS

[0008] One purpose of the utility model is to provide a kind of osmotic membrane ethanol purification equipment, the utility model can be accurately positioned and easily operated by screw connection and clamping groove limiting structure, reduce maintenance difficulty and cost, secondly, the overall applicability of equipment is strong, can flexibly cope with membrane assembly failure, different production needs and technology upgrading, effectively guarantee the continuity and efficiency of ethanol purification production, improve economic benefit and competitiveness.

[0009] According to the utility model embodiment, a kind of osmotic membrane ethanol purification equipment, including kettle body, kettle cover and membrane assembly;

[0010] The kettle body inside bottom is fixedly installed with a support in the middle, the membrane assembly is vertically inserted and installed in the support, the kettle cover and the kettle body are movably connected through a back hinge, the kettle cover is arranged on the kettle body top, a sleeve is vertically installed on the kettle cover top, a feeding pipe is penetratedly installed in the sleeve, an upper limiting seat is fixedly installed at the feeding pipe bottom and below the kettle cover, the upper limiting seat is sleeved on the membrane assembly top, internal threads are formed on the sleeve inner wall, external threads are formed on the feeding pipe outer wall, and the external threads are engaged with the internal threads.

[0011] Further, the kettle body and the kettle cover front wall are correspondingly installed with buckles on one side close to each other, and the kettle cover is fixedly connected with the kettle body through the buckles.

[0012] Further, the kettle body is fixedly sleeved with a base below, and supporting legs are arranged at the base bottom four corners.

[0013] Further, a residue discharging port is installed in the middle of the kettle body bottom, and the residue discharging port top is communicated with the support.

[0014] Further, a extracting liquid discharging port is fixedly installed on the other side of the residue discharging port at the kettle body bottom and communicated with the kettle body.

[0015] Further, a clamping groove is formed below the upper limiting seat, the membrane assembly top is arranged in the clamping groove, and a sealing ring is fixedly installed on the clamping groove inner wall top end.

[0016] Further, a connecting head is arranged on the feeding pipe top, and the feeding pipe top connecting head is connected with the feeding mechanism output end through a hose.

[0017] Further, the membrane assembly specifically adopts a hollow fiber membrane assembly.

[0018] The utility model discloses beneficial effects are:

[0019] The utility model discloses through the internal thread that the sleeve inner wall is equipped with, the external thread that feeding pipe outer wall is equipped with, and the interlock, when installing, the operator only needs to insert and rotates along the sleeve with feeding pipe, can make it fixed in the suitable position, simultaneously drives the upper limiting seat of feeding pipe bottom accurate sleeve and is placed on the membrane assembly top, when needing to maintain, replace or check etc. Operation of membrane assembly, reverse rotation feeding pipe can be easily disassembled, provides the convenient operation prerequisite for subsequent access membrane assembly, need not to help complex tool or spend a lot of energy to disassemble this part structure, greatly improves the operation efficiency, and the upper limiting seat can provide more stable pressure when installing, ensures the stability and the sealing property of the connecting portion when installing. DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present application and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:

[0021] Figure 1 A front view structural schematic diagram of the equipment for permeation membrane ethanol purification is provided for the present application;

[0022] Figure 2 A bottom view structural schematic diagram of the equipment for permeation membrane ethanol purification is provided for the present application;

[0023] Figure 3 A top view opening structural schematic diagram of the equipment for permeation membrane ethanol purification is provided for the present application;

[0024] Figure 4 An upper limit seat dismounting structural schematic diagram of the equipment for permeation membrane ethanol purification is provided for the present application;

[0025] Figure 5 An internal structure schematic diagram of the upper limit seat of the equipment for permeation membrane ethanol purification is provided for the present application.

[0026] In the drawings: 1, kettle body; 2, kettle cover; 3, back hinge; 4, buckle; 5, base; 6, sleeve; 7, feed pipe; 8, slag discharge port; 9, extraction liquid discharge port; 10, support; 11, membrane assembly; 12, upper limit seat; 13, internal thread; 14, external thread; 15, clamping groove; 16, sealing ring. DETAILED DESCRIPTION

[0027] The present application will now be further described in detail with reference to the drawings. These drawings are all simplified schematic diagrams, and only schematically show the basic structure of the present application, and thus only show the components related to the present application.

[0028] REFERENCE Figures 1-5 A kind of equipment for permeation membrane ethanol purification, including kettle body 1, kettle cover 2 and membrane assembly 11;

[0029] Support 10 is fixedly installed in the middle of the inside bottom of kettle body 1, membrane assembly 11 is vertically inserted and installed in support 10, kettle cover 2 and kettle body 1 are movably connected through back hinge 3, and kettle cover 2 is arranged at the top of kettle body 1, sleeve 6 is vertically installed in the middle of the top of kettle cover 2, feed pipe 7 is installed through sleeve 6, upper limit seat 12 is fixedly installed at the bottom of feed pipe 7 and below kettle cover 2, and upper limit seat 12 is sleeved on the top of membrane assembly 11;

[0030] Specifically, the membrane assembly 11 specifically adopts a hollow fiber membrane assembly. The hollow fiber membrane assembly contains a large number of hollow fiber membrane filaments inside. These membrane filaments have selective permeability and can allow ethanol molecules to permeate the membrane wall according to certain mass transfer principles, while retaining other impurity molecules, thereby achieving the purpose of purifying ethanol. It has the advantages of large specific surface area, high separation efficiency, etc. and can efficiently purify the ethanol-containing mixed liquid entering the kettle body 1.

[0031] The kettle body 1 and the kettle cover 2 are fixedly connected through the buckle 4. When the equipment is assembled, the kettle cover 2 is rotated along the back hinge 3 and covers the top of the kettle body 1. Then, the buckle 4 is operated to be buckled correspondingly, so that the kettle cover 2 and the kettle body 1 are tightly fixed together, ensuring that a relatively sealed space is formed inside the equipment, preventing internal liquid leakage or external air from entering during the ethanol purification process, and affecting the purification effect and the normal operation of the equipment.

[0032] Secondly, the kettle body 1 is fixedly sleeved with the base 5, and the base 5 is provided with supporting legs at the bottom of four corners. When the equipment is installed, the entire equipment is placed on the predetermined working site first. The base 5 and the supporting legs at the bottom can evenly share the weight of the equipment, ensuring that the equipment is stably placed on the ground, avoiding shaking, tilting and other situations caused by unstable placement of the equipment, and ensuring that the purification process can be stable and continuous.

[0033] In addition, the kettle body 1 is centrally provided with a slag discharge port 8 at the bottom, and the slag discharge port 8 is in communication with the support 10 at the top; the kettle body 1 is fixedly provided with an extract liquid discharge port 9 at the bottom and on the other side of the slag discharge port 8, and the extract liquid discharge port 9 is in communication with the kettle body 1. During the operation of the equipment, after the ethanol-containing mixed liquid enters the kettle body 1, impurities and other substances will be collected in the membrane assembly 11 through the purification effect of the membrane assembly 11. The valve of the slag discharge port 8 can be opened regularly to discharge these waste residues outside the equipment for cleaning. The ethanol extract liquid after purification is collected in the kettle body 1 and discharged through the extract liquid discharge port 9 for subsequent collection, storage or further processing.

[0034] In this embodiment, when the feed pipe 7 is installed, the feed pipe 7 is inserted from above the sleeve 6. The upper limiting seat 12 is provided with a clamping groove 15 below, the membrane assembly 11 is placed in the clamping groove 15, and the sealing ring 16 fixedly installed at the top of the inner wall of the clamping groove 15 can tightly fit the top outer periphery of the membrane assembly 11 at this time, further enhancing the sealing performance at this place, avoiding liquid leakage from the connection between the top of the membrane assembly 11 and the upper limiting seat 12, and ensuring the normal operation of the purification operation.

[0035] Reference Figures 1-5The inner wall of the sleeve 6 is provided with an internal thread 13, and the outer wall of the feeding pipe 7 is provided with an external thread 14 which is engaged with the internal thread 13; the lower part of the upper limiting seat 12 is provided with a clamping groove 15, and the top of the membrane assembly 11 is placed in the clamping groove 15, and the inner wall of the clamping groove 15 is fixedly provided with a sealing ring 16 at the top end;

[0036] The top of the feeding pipe 7 is provided with a connecting head, and the connecting head is connected with one end of a hose, and the other end of the hose is reliably connected with the output end of the feeding mechanism. In actual operation, the connecting head at the top of the feeding pipe 7 is connected with a hose of appropriate specification, and then the other end of the hose is reliably connected with the output end of the feeding mechanism. After the feeding mechanism is started, the mixed solution containing ethanol can be smoothly conveyed into the kettle body 1 through the hose and the feeding pipe 7 and into the membrane assembly 11, and the purification process is started.

[0037] In this embodiment, the internal thread 13 provided in the inner wall of the sleeve 6 and the external thread 14 provided in the outer wall of the feeding pipe 7 are engaged with each other, and the feeding pipe 7 is rotated to gradually move downward and be fixed at an appropriate position. Such a threaded connection mode not only facilitates installation and disassembly, but also can ensure good sealing between the feeding pipe 7 and the sleeve 6, prevent leakage during feeding, and ensure that the upper limiting seat 12 is accurately sleeved on the top of the membrane assembly 11 with the installation of the feeding pipe 7. In addition, the connection between the hose connecting head and the output end of the feeding mechanism is firm and sealed, and a pipe clamp or other connecting piece can be used for reinforcement and sealing to prevent loosening and liquid leakage during feeding. At the same time, according to the actual feeding flow, pressure and other process requirements, the pipe diameter, material and power of the conveying pump in the feeding mechanism are reasonably selected to ensure smooth and efficient feeding process and meet the production requirements of the entire ethanol purification equipment.

[0038] Working principle: the mixed solution containing ethanol enters into the kettle body 1 through the feed pipe 7 and enters the membrane module 11, since the hollow fiber membrane adopted by the membrane module 11 has selective permeability, under the action of the driving force such as concentration difference or pressure difference existing on both sides of the membrane, ethanol molecules will preferentially permeate the membrane wall of the hollow fiber membrane and enter the other side of the kettle body of the membrane module 11, while other impurity molecules in the mixed solution, such as macromolecular organic matter, inorganic salt, etc. cannot pass through the membrane wall and are intercepted on this side, with the continuous progress of the purification process, the ethanol permeating the membrane continuously gathers in the corresponding collection area, and finally is discharged from the kettle body 1 through the extract outlet 9 to become the purified ethanol product, while the intercepted impurities and other substances are discharged outside the equipment through the slag discharge port 8, so that the continuous purification operation of ethanol by using the permeation membrane is realized, the purpose of improving the purity of ethanol is achieved, and when the membrane module 11 is installed, the membrane module 11 can be first inserted into the support 10, then the kettle cover 2 is closed, and the feed pipe 7 is rotated to be located in the sleeve 6 and moves downward, at this time, the upper limiting seat 12 can be driven to move downward synchronously, so that the upper limiting seat 12 is sleeved on the top of the membrane module 11, and with the continuous downward movement, the clamping and fixing of the membrane module can be completed by the cooperation of the upper limiting seat 12 and the support 10, the stability and firmness of installation are ensured, and the disassembly and assembly convenience of the membrane module 11 is improved.

[0039] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An apparatus for the ethanol purification of a permeate membrane, characterized in that, It includes a kettle body (1), a kettle cover (2) and a membrane assembly (11); The kettle body (1) is centrally fixedly installed with a support (10) on the inner bottom, the membrane assembly (11) is vertically inserted and installed in the support (10), the kettle cover (2) and the kettle body (1) are movably connected through a back hinge (3), and the kettle cover (2) is arranged on the top of the kettle body (1), a sleeve (6) is vertically installed on the top of the kettle cover (2), a feeding pipe (7) is installed in the sleeve (6) in a penetrating manner, an upper limiting seat (12) is fixedly installed at the bottom of the feeding pipe (7) and below the kettle cover (2), the upper limiting seat (12) is sleeved on the top of the membrane assembly (11), internal threads (13) are formed in the inner wall of the sleeve (6), external threads (14) are formed in the outer wall of the feeding pipe (7), and the external threads (14) are engaged with the internal threads (13).

2. The apparatus for purifying ethanol by osmosis membrane according to claim 1, wherein, The kettle body (1) and the kettle cover (2) are correspondingly installed with buckles (4) on the side close to each other, and the kettle cover (2) is fixedly connected with the kettle body (1) through the buckles (4).

3. The apparatus for purifying ethanol by osmosis membrane according to claim 1, wherein, The kettle body (1) is fixedly sleeved with a base (5) below, and supporting legs are arranged at the four corners of the bottom of the base (5).

4. The apparatus for purifying ethanol by pervaporation according to claim 1, wherein A slag discharge port (8) is centrally installed on the bottom of the kettle body (1), and the top of the slag discharge port (8) is in communication with the support (10).

5. The apparatus for purifying ethanol by pervaporation according to claim 4, wherein A liquid extraction discharge port (9) is fixedly installed on the bottom of the kettle body (1) and on the other side of the slag discharge port (8), and the liquid extraction discharge port (9) is in communication with the kettle body (1).

6. The apparatus for purifying ethanol by osmosis membrane according to claim 1, wherein, A clamping groove (15) is formed below the upper limiting seat (12), the top of the membrane assembly (11) is arranged in the clamping groove (15), and a sealing ring (16) is fixedly installed on the top end of the inner wall of the clamping groove (15).

7. The apparatus for purifying ethanol by pervaporation according to claim 1, wherein A connecting head is arranged on the top of the feeding pipe (7), and the top connecting head of the feeding pipe (7) is connected with the output end of a feeding mechanism through a hose.

8. The apparatus for purifying ethanol by osmosis membrane according to claim 1, wherein, The membrane assembly (11) specifically adopts a hollow fiber membrane assembly.

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