Chitosan oligosaccharide separation and purification membrane equipment

Abstract

The invention discloses chitosan oligosaccharide separation and purification membrane equipment, and relates to the technical field of biological membrane separation equipment.The chitosan oligosaccharide separation and purification membrane equipment specifically comprises a rack, a pretreatment box is arranged in the rack in a sleeved mode, a fixed liquid guide pipe and a filter screen cylinder are arranged in the pretreatment box in a sleeved mode, and the fixed liquid guide pipe is arranged in the filter screen cylinder in a sleeved mode; the two ends of the filter screen cylinder are respectively sleeved with the top structure and the bottom structure of the pretreatment box in a penetrating manner. According to the biological membrane separation equipment, the arranged filter screen cylinder can perform static direct filtration or centrifugal filtration under the transmission of the power output component while downward flowing and conveying of to-be-treated liquid are not delayed, the use effect of filtration of the filter screen cylinder is fully improved, and the problem that the interior of the filter screen cylinder is blocked is solved. In the process that the filter screen cylinder is driven by the power output component to rotate, the multiple brush strips in the brush plate assembly are matched for synchronous operation, so that the multiple brush strips conduct anti-blocking brushing treatment on the inner wall of the filter screen cylinder in a passive mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biological membrane separation equipment, in particular to a chitosan oligosaccharide separation and purification membrane equipment. BACKGROUND

[0002] Chitosan oligosaccharide, also known as chitosan oligosaccharide or oligochitosan, is a kind of oligosaccharide product with a degree of polymerization of 2-20, which is obtained by special biological enzyme technology, and the molecular weight is less than or equal to 3200 Da. It is a low molecular weight product with good water solubility, large functional effect and high biological activity. It has higher solubility than chitosan, is fully soluble in water, is easily absorbed and utilized by organisms, and has many unique functions. Its effect is fourteen times that of chitosan.

[0003] At present, in the process of chitosan oligosaccharide separation and purification, in order to reduce the filtration pressure of the subsequent membrane module and reduce the blocking period of the membrane module, a pre-filtering treatment is usually carried out before membrane purification filtration, for example, a filter screen is used to directly intercept and filter large particles in the liquid to be treated. However, with the increase of use time, the filter screen will be obviously blocked, and it needs to be cleaned before it can continue to be used, which will lead to a downward trend of the use efficiency of the whole equipment. In addition, the cleaning of the membrane module also needs to be stopped for treatment, which will also adversely affect the use efficiency of the whole equipment. Therefore, in view of the above problems existing in the prior art, the applicant will provide a chitosan oligosaccharide separation and purification membrane equipment to solve the problems. SUMMARY

[0004] The present application provides a chitosan oligosaccharide separation and purification membrane equipment, which solves the problems raised in the background art.

[0005] In order to achieve the above purpose, the present application is realized by the following technical scheme: a chitosan oligosaccharide separation and purification membrane equipment, comprising a rack, a pretreatment box is sleeved in the inside of the rack, a guide liquid pipe and a filter screen cylinder are sleeved in the inside of the pretreatment box, and the guide liquid pipe is sleeved in the inside of the filter screen cylinder, the two ends of the filter screen cylinder are respectively penetrated and sleeved with the top structure and the bottom structure of the pretreatment box, and a blowdown valve pipe is installed at the bottom of the filter screen cylinder, a power output component capable of driving the top end of the filter screen cylinder is installed at the top of the pretreatment box, and a positioning support limiting the top end of the guide liquid pipe is sleeved, and a brush plate assembly capable of contacting the inner wall of the filter screen cylinder is fixed at the bottom of the guide liquid pipe, the filter screen cylinder can rotate and self-clean with the brush plate assembly under the driving of the power output component; A plurality of membrane separation components are arranged and installed along the circumference of the bottom of the pretreatment box, and a concentrated liquid output end and a clear liquid output end are arranged in the inside of the membrane separation component, a plurality of concentrated liquid output ends are connected with a first collecting pipe, and a plurality of clear liquid output ends are connected with a second collecting pipe.

[0006] Preferably, the filter screen cylinder and the pretreatment box are nested with the first shaft seal ring and the first support bearing, the top end of the guide pipe is nested with the first shaft seal ring and the first support bearing, and the bottom of the guide pipe is provided with a through guide groove, and the top end of the guide pipe is fixed with a flange.

[0007] Preferably, the power output component includes a reducer, a brake servo motor, a first gear and a second gear, the first gear and the second gear are meshed with each other and are respectively nested on the surface of the top end of the filter screen cylinder and the output end of the reducer, the output end of the brake servo motor is in transmission connection with the input end of the reducer, and the housing of the brake servo motor and the housing of the reducer are both installed on the top of the pretreatment box.

[0008] Preferably, the filter screen cylinder is composed of a number of filter screens which are fixedly nested in the middle wall of the H-shaped frame cylinder, and the second gear nested on the top end of the filter screen cylinder is movably sleeved with the positioning bracket.

[0009] Preferably, the brush plate assembly includes a C-shaped support plate, a plurality of brush strips are arranged and installed on one side of the C-shaped support plate from top to bottom, the end of the brush strip away from the C-shaped support plate can be in contact with the inner wall of the filter screen in the filter screen cylinder, and both ends of the C-shaped support plate are fixed on the surface of the bottom of the guide pipe.

[0010] Preferably, the inside of the pretreatment box is nested with a H-shaped cylinder and a spiral blade which can movably sleeve with the filter screen cylinder, a linkage rod is arranged between the bottom of the H-shaped cylinder and the top of the spiral blade, the top end of the H-shaped cylinder is nested between the top structure of the pretreatment box and the surface of the top end of the filter screen cylinder, and the nested parts of the H-shaped cylinder and the pretreatment box and the nested parts of the H-shaped cylinder and the filter screen cylinder are both provided with the second shaft seal ring and the second support bearing, and a linkage mechanism is arranged between the top end of the H-shaped cylinder and the top end of the filter screen cylinder, so that the H-shaped cylinder can rotate synchronously with the filter screen cylinder through the linkage mechanism.

[0011] Preferably, the top end of the H-shaped cylinder is provided with a T-shaped structure, the linkage mechanism includes a conductive slip ring and a ring-shaped electromagnet, the ring-shaped electromagnet is fixedly nested on the outside of the top end of the filter screen cylinder and can magnetically attract the top surface of the H-shaped cylinder, the conductive slip ring is movably sleeved on the outside of the top of the filter screen cylinder, a support rod is installed between the housing surface of the conductive slip ring and the top surface of the pretreatment box, and the conductive slip ring is electrically connected with the ring-shaped electromagnet through a wire.

[0012] Preferably, the membrane separation assembly comprises a separation membrane component, a first electromagnetic valve pipe is arranged between the top of the separation membrane component and the bottom of the pretreatment tank, a second electromagnetic valve pipe and a third electromagnetic valve pipe are arranged at the bottom of the separation membrane component, a quick mounting structure is arranged between the top end of the separation membrane component and the bottom of the first electromagnetic valve pipe, between the bottom end of the separation membrane component and one end of the second electromagnetic valve pipe or one end of the third electromagnetic valve pipe, the second electromagnetic valve pipe serves as a dilute liquid output end of the separation membrane component, the third electromagnetic valve pipe serves as a concentrated liquid output end, and the second electromagnetic valve pipe and the third electromagnetic valve pipe are both provided with an electronic flowmeter. The first collecting pipe comprises a second ring pipe and a second collecting conduit, the end of the third electromagnetic valve pipe away from the separation membrane component is sleeved in the second ring pipe, one end of the second collecting conduit is fixed to the bottom of the second ring pipe, the second collecting pipe comprises a first ring pipe and a first collecting conduit, the end of the second electromagnetic valve pipe away from the separation membrane component is sleeved in the first ring pipe, one end of the first collecting conduit is fixedly sleeved to the bottom of the first ring pipe, and the surface of the first ring pipe and the surface of the second ring pipe are jointly connected with an auxiliary frame sleeved in the bottom of the rack.

[0013] Preferably, the quick mounting structure comprises a first T-shaped joint and an auxiliary sealing ring, one end of the first T-shaped joint is fixed to the corresponding port of the separation membrane component, one end of the second T-shaped joint is connected to the corresponding port of the first electromagnetic valve pipe, the corresponding port of the second electromagnetic valve pipe or the corresponding port of the third electromagnetic valve pipe, the other end of the first T-shaped joint is provided with external threads, the other end of the second T-shaped joint is sleeved with an internal thread sleeve capable of being threadedly connected with the external surface of the first T-shaped joint, and in the process of screw engagement between the internal thread sleeve and the first T-shaped joint, the first T-shaped joint and the second T-shaped joint can be assembled in close contact, and the end surface of the other end of the second T-shaped joint is sleeved with the auxiliary sealing ring.

[0014] Preferably, the top of the rack is provided with an auxiliary supporting assembly capable of supporting and limiting the separation membrane component, the auxiliary supporting assembly comprises a linkage support and an arc-shaped plate, the inner wall of the arc-shaped plate is fixed to the surface of the separation membrane component, two transition pressing plates in opposite positions are mounted on the structure surface of the arc-shaped plate away from the separation membrane component, half-open strip-shaped grooves are formed in the interiors of the two transition pressing plates, air cylinders are mounted at the top and the bottom of the linkage support, and the output directions of the two air cylinders are opposite and both are drivingly connected with cross-shaped rods capable of being clamped and pressed in the corresponding half-open strip-shaped grooves.

[0015] The application has the following advantages: 1. The biological membrane separation equipment, by setting up the pretreatment tank, the filter screen cylinder, the fixed guide liquid pipe, the positioning support, the brush plate assembly and the power output component, a multifunctional prefiltering mechanism is formed, the subsequent filter screen cylinder can carry out static direct filtering or centrifugal filtering under the transmission of the power output component without delaying the downward conveying of the liquid to be treated, the use effect of the filter screen cylinder filtering is fully improved, and for the internal blockage problem of the filter screen cylinder, in the rotating process of the filter screen cylinder driven by the power output component, a plurality of brush strips in the brush plate assembly are synchronously operated, the plurality of brush strips carry out anti-blocking and cleaning treatment on the inner wall of the filter screen cylinder in a passive mode, the continuous and efficient filtering use effect of the filter screen cylinder is maintained, and the working efficiency of the whole equipment is ensured.

[0016] 2. The biological membrane separation equipment, by setting up the I-shaped cylinder, the spiral blade, the annular electromagnet and the conductive slip ring, an auxiliary guide structure is formed, the I-shaped cylinder and the spiral blade are synchronously rotated by using the kinetic energy output by the power output component, then, the spiral blade carries out reciprocating spiral movement downward in the annular space formed between the pretreatment tank and the filter screen cylinder, and the pretreated liquid in the annular space is pressurized, so that the liquid is quickly distributed into a plurality of membrane separation assemblies, and the working efficiency is improved.

[0017] 3. The biological membrane separation equipment, by setting up a plurality of quick mounting structures used in cooperation with a single membrane separation assembly, when blockage occurs in the subsequent continuous use of the membrane separation assembly, the plurality of quick mounting structures can provide convenient installation or dismounting use conditions for the separation membrane component in the membrane separation assembly, the modular replacement of the separation membrane component is met, the replacement of the separation membrane component does not need to stop, and the efficient working state of the whole equipment is ensured.

[0018] 4. The biological membrane separation equipment, the stability of the separation membrane component in the continuous use process can be ensured by setting up an auxiliary support assembly to clamp and support the separation membrane component in the use state without interfering with the modular replacement effect of the separation membrane component. DETAILED DESCRIPTION

[0019] Figure 1 It is a perspective view of the structure of the present application; Figure 2 It is a front view of the structure of the present application; Figure 3 It is a top view of the structure of the present application; Figure 4 It is a sectional view of the pretreatment tank in the structure of the present application; Figure 5 It is an enlarged view of the power output component in the structure of the present application; Figure 6An enlarged schematic view of the brush plate assembly in the structure of the present application; Figure 7 An enlarged schematic view of the structure of the present application Figure 6 at A; Figure 8 An enlarged schematic view of the structure of the present application Figure 6 at B; Figure 9 A partial sectional view of the separation membrane assembly in the structure of the present application; Figure 10 An enlarged schematic view of the auxiliary support assembly in the structure of the present application; Figure 11 An enlarged schematic view of the structure of the present application Figure 10 at C.

[0020] In the figure: 1, frame; 2, pretreatment tank; 3, fixed guide liquid pipe; 4, filter screen cylinder; 5, positioning support; 6, brush plate assembly; 61, C-shaped support plate; 62, brush strip; 7, power output component; 71, speed reducer; 72, brake servo motor; 73, first gear; 74, second gear; 8, blowdown valve pipe; 9, I-shaped cylinder; 10, helical blade; 11, first electromagnetic valve pipe; 12, separation membrane component; 13, second electromagnetic valve pipe; 14, third electromagnetic valve pipe; 15, first ring pipe; 16, second ring pipe; 17, first collection guide pipe; 18, second collection guide pipe; 19, auxiliary frame; 20, auxiliary support assembly; 201, linkage support; 202, arc plate; 203, transition pressure plate; 204, air cylinder; 205, cross-shaped rod; 21, first T-shaped joint; 22, second T-shaped joint; 23, auxiliary sealing ring; 24, internally threaded sleeve; 25, conductive slip ring; 26, annular electromagnet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] Please refer to Figures 1-6 , Figure 8The chitosan oligosaccharide separation and purification membrane equipment includes a frame 1, a pretreatment box 2 is installed inside the frame 1, a fixed liquid guide pipe 3 and a filter cylinder 4 are installed inside the pretreatment box 2, and the fixed liquid guide pipe 3 is installed inside the filter cylinder 4. The two ends of the filter cylinder 4 are respectively installed through the top and bottom structures of the pretreatment box 2, and a drain valve pipe 8 is installed at the bottom of the filter cylinder 4. The top of the pretreatment box 2 is equipped with a power output component 7 that can drive the top end of the filter cylinder 4 and a positioning bracket 5 that limits the installation of the top end of the fixed liquid guide pipe 3. The bottom of the fixed liquid guide pipe 3 is fixed with a brush plate assembly 6 that can contact the inner wall of the filter cylinder 4. The filter cylinder 4 can rotate and self-clean under the drive of the power output component 7 in conjunction with the brush plate assembly 6. The first shaft sealing ring and the first support bearing are nested at the fitting points of the filter cylinder 4 and the pretreatment box 2, and at the fitting points of the top end of the fixed liquid guide pipe 3 and the top end of the filter cylinder 4. This ensures that after the pretreatment box 2, the fixed liquid guide pipe 3 and the filter cylinder 4 are fitted together, the sealing effect between each other is maintained while ensuring that they do not interfere with the rotation operation, thus greatly reducing the probability of leakage. In addition, a through-shaped guide groove is opened at the bottom of the fixed liquid guide pipe 3, which provides a clearance channel for the liquid to be treated to smoothly enter the interior of the pretreatment box 2. The top end of the fixed liquid guide pipe 3 is fixed with a flange, which provides convenient assembly conditions for the installation of subsequent related conduits, further optimizing the use effect of the fixed liquid guide pipe 3. The filter cylinder 4 consists of a U-shaped frame cylinder and several filter screens fixedly nested in the middle side wall of the U-shaped frame cylinder. This ensures the structural strength of the filter cylinder 4 while meeting the requirements for direct filtration. The second gear 74 fitted at the top end of the filter cylinder 4 is movably connected to the positioning bracket 5 to avoid structural interference. The brush plate assembly 6 includes a C-shaped support plate 61. Several brush strips 62 are arranged from top to bottom on one side of the C-shaped support plate 61. The end of the brush strip 62 away from the C-shaped support plate 61 can fit in close contact with the inner wall of the filter screen in the filter cylinder 4. Both ends of the C-shaped support plate 61 are fixed to the surface of the bottom of the fixed liquid guide tube 3. Thus, while the filter cylinder 4 is rotating and outputting, the brush plate assembly 6 can passively clean the inner wall of the filter cylinder 4 to prevent clogging and maintain the continuous and efficient filtration effect of the filter cylinder 4. The power output component 7 comprises a reducer 71, a brake servo motor 72, a first gear 73 and a second gear 74, the first gear 73 and the second gear 74 are meshed with each other and are respectively sleeved on the surface of the top end of the filter screen cylinder 4 and the output end of the reducer 71, the output end of the brake servo motor 72 is in transmission connection with the input end of the reducer 71, thereby meeting the power output requirement of automatic rotation of the filter screen cylinder 4, the filter screen cylinder 4 has the use function of centrifugal filtration in addition to dynamic filtration, and the shell of the brake servo motor 72 and the shell of the reducer 71 are both installed on the top of the pretreatment tank 2, thereby guaranteeing the stability of subsequent continuous use. A plurality of membrane separation assemblies are arranged and installed on the bottom of the pretreatment tank 2 along the circumference thereof, and the inside of the membrane separation assembly is provided with a concentrated liquid output end and a clear liquid output end, a plurality of concentrated liquid output ends are commonly connected with a first collecting pipe, and a plurality of clear and concentrated liquid output ends are commonly connected with a second collecting pipeline.

[0023] The biological membrane separation equipment, when in use, faces the pre-filtration treatment requirement of the to-be-treated liquid, and performs pre-filtration treatment through the structures of the pretreatment tank 2 and the liquid guide pipe 3, and the specific principle is as follows: The to-be-treated liquid is introduced into the inside of the filter screen cylinder 4 through the liquid guide pipe 3, and then the filter screen in the inside of the filter screen cylinder 4 directly blocks the large-particle impurities in the to-be-treated liquid and temporarily retains them in the inside of the filter screen cylinder 4, and the pre-filtered to-be-treated liquid flows into the inside of the plurality of membrane separation assemblies through the bottom of the pretreatment tank 2, is separated and purified and filtered by the plurality of membrane separation assemblies, and the membrane separation assembly can specifically adopt a hollow fiber filter membrane assembly, then the clear liquid after membrane separation and purification is concentrated and discharged through the plurality of clear and concentrated liquid output ends and the second collecting pipeline, and the concentrated liquid after membrane separation and purification is concentrated and discharged through the plurality of concentrated liquid output ends and the first collecting pipe; After the filter screen cylinder 4 is used for a certain period of time, the brake servo motor 72 in the power output component 7 is started, the first gear 73 is driven by the brake servo motor 72 through the reducer 71 to mesh and drive the second gear 74, and then the second gear 74 drives the filter screen cylinder 4 to synchronously rotate in the inside of the pretreatment tank 2, thereby cooperating with the plurality of brush bars 62 in the brush plate assembly 6 to passively perform anti-blocking and cleaning brushing treatment on the inner wall of the filter screen cylinder 4, and maintain the continuous and efficient filtering use effect of the filter screen cylinder 4; Further, considering the filtering efficiency of the filter screen cylinder 4 on the liquid to be treated, during the process of the liquid to be treated entering the inside of the filter screen cylinder 4, the brake servo motor 72 inside the power output component 7 is started, the first gear 73 is driven by the brake servo motor 72 through the reducer 71 to engage the second gear 74, and then the second gear 74 drives the filter screen cylinder 4 to rotate synchronously inside the pretreatment box 2, so that the filter screen cylinder 4 rotates synchronously to quickly filter the liquid to be treated in a centrifugal filtering manner. Subsequently, in the gap of the temporary use of the overall device, the valve inside the blowdown valve pipe 8 can be opened to blow down the mixed solution collected in the filter screen cylinder 4 and rich in large-particle impurities.

[0024] Please refer to Figures 1-8 , the inside of the pretreatment box 2 is sleeved with a H-shaped cylinder 9 and a spiral blade 10 which can be movably sleeved with the filter screen cylinder 4, a linkage rod is arranged between the bottom of the H-shaped cylinder 9 and the top of the spiral blade 10, the top end of the H-shaped cylinder 9 is sleeved between the top structure of the pretreatment box 2 and the surface of the top end of the filter screen cylinder 4, and the sleeving part of the H-shaped cylinder 9 and the pretreatment box 2 and the sleeving part of the H-shaped cylinder 9 and the filter screen cylinder 4 are both embedded with a second shaft sealing ring and a second support bearing, thereby fully ensuring the sealing effect of the connection of the H-shaped cylinder 9 and the filter screen cylinder 4 and the pretreatment box 2, and a linkage mechanism is arranged between the top end of the H-shaped cylinder 9 and the top end of the filter screen cylinder 4, so that the H-shaped cylinder 9 can rotate synchronously with the filter screen cylinder 4 through the linkage mechanism. The top end of the H-shaped cylinder 9 is provided with a T-shaped structure, the linkage mechanism includes a conductive slip ring 25 and a ring-shaped electromagnet 26, the ring-shaped electromagnet 26 is fixedly sleeved outside the top end of the filter screen cylinder 4 and can magnetically attract the top surface of the H-shaped cylinder 9, the conductive slip ring 25 is movably sleeved outside the top of the filter screen cylinder 4, a supporting rod is arranged between the surface of the shell of the conductive slip ring 25 and the top surface of the pretreatment box 2, and the conductive slip ring 25 is electrically connected with the ring-shaped electromagnet 26 through a wire, so that the ring-shaped electromagnet 26 can be electrified and output while avoiding interference of the wire installation.

[0025] When the biological membrane separation device is used, considering the efficiency of the pretreated liquid in the pretreatment box 2 being shunted into the plurality of membrane separation assemblies, in addition to the gravity effect, the H-shaped cylinder 9 and the spiral blade 10 and other structures can be used for pressure treatment, and the specific operation is as follows: The annular electromagnet 26 is turned on, and the top surface of the I-shaped cylinder 9 is magnetically connected by the annular electromagnet 26. The conductive slip ring 25 provides power for the annular electromagnet 26. Then, the holding brake servo motor 72 in the power output component 7 is started, and the first gear 73 is driven by the holding brake servo motor 72 through the speed reducer 71 to engage and drive the second gear 74, and then the second gear 74 drives the filter screen cylinder 4 to rotate synchronously in the inside of the pretreatment box 2. At the same time, the annular electromagnet 26 installed on the top of the filter screen cylinder 4 will drive the I-shaped cylinder 9 and the spiral blade 10 to rotate synchronously, and then the spiral blade 10 performs downward reciprocating spiral motion in the annular space formed between the pretreatment box 2 and the filter screen cylinder 4, thereby pressurizing the pre-filtered liquid in the annular space and rapidly shunting it into a plurality of membrane separation assemblies, thereby improving work efficiency.

[0026] Please refer to Figures 1-9 The membrane separation assembly includes a separation membrane component 12, a first electromagnetic valve pipe 11 is arranged between the top of the separation membrane component 12 and the bottom of the pretreatment box 2, a second electromagnetic valve pipe 13 and a third electromagnetic valve pipe 14 are arranged at the bottom of the separation membrane component 12, a quick-mounting structure is arranged between the top port of the separation membrane component 12 and the bottom of the first electromagnetic valve pipe 11, and between the bottom port of the separation membrane component 12 and one end of the second electromagnetic valve pipe 13 or one end of the third electromagnetic valve pipe 14, the second electromagnetic valve pipe 13 is used as the clear liquid output end of the separation membrane component 12, the third electromagnetic valve pipe 14 is used as the concentrated liquid output end of the separation membrane component 12, and electronic flowmeters are installed on the second electromagnetic valve pipe 13 and the third electromagnetic valve pipe 14, so that the delivery of the second electromagnetic valve pipe 13 and the third electromagnetic valve pipe 14 can be controlled in real time. The first collection pipe includes a second ring pipe 16 and a second collection conduit 18, the end of the third electromagnetic valve pipe 14 away from the separation membrane component 12 is sleeved in the inside of the second ring pipe 16, and one end of the second collection conduit 18 is fixed to the bottom of the second ring pipe 16. The second collection pipe includes a first ring pipe 15 and a first collection conduit 17, the end of the second electromagnetic valve pipe 13 away from the separation membrane component 12 is sleeved in the inside of the first ring pipe 15, and one end of the first collection conduit 17 is fixedly sleeved to the bottom of the first ring pipe 15. The surface of the first ring pipe 15 and the surface of the second ring pipe 16 are jointly connected with an auxiliary frame 19 sleeved in the bottom of the rack 1. The quick mounting structure comprises a first T-shaped joint 21, an auxiliary sealing ring 23, one end of the first T-shaped joint 21 is fixed with a corresponding port of the separation membrane component 12, one end of a second T-shaped joint 22 is connected with a corresponding port of the first electromagnetic valve pipe 11 or a corresponding port of the second electromagnetic valve pipe 13 or a corresponding port of the third electromagnetic valve pipe 14, an outer thread is formed on the surface of the other end of the first T-shaped joint 21, and an inner thread sleeve 24 capable of being screwed with the outer surface of the first T-shaped joint 21 is sleeved on the other end of the second T-shaped joint 22, and during screwing of the inner thread sleeve 24 and the first T-shaped joint 21, the first T-shaped joint 21 and the second T-shaped joint 22 can be assembled in close contact, ensuring the connection strength and maintaining the convenience of subsequent reciprocating installation or disassembly, and the end surface of the other end of the second T-shaped joint 22 is nested with the auxiliary sealing ring 23, ensuring the sealing effect of the connection.

[0027] The biological membrane separation equipment biological membrane separation equipment, when in use, when the electronic flow meter output data on the second electromagnetic valve pipe 13 gradually becomes smaller, and the electronic flow meter output data on the third electromagnetic valve pipe 14 gradually becomes larger, it indicates that the membrane structure inside the separation membrane component 12 may be blocked, in order to ensure the working efficiency of the whole device, replacement treatment is needed, the specific operation is as follows: Close the electromagnetic valves inside the corresponding first electromagnetic valve pipe 11, the electromagnetic valves inside the second electromagnetic valve pipe 13 and the electromagnetic valves inside the third electromagnetic valve pipe 14, then turn the inner thread sleeves 24 inside the three quick mounting structures in turn, until the inner thread sleeves 24 are separated from the first T-shaped joint 21, after completion, the separation membrane component 12 is directly separated from between the first electromagnetic valve pipe 11 and the second electromagnetic valve pipe 13, then, a new separation membrane component 12 is installed between the first electromagnetic valve pipe 11 and the second electromagnetic valve pipe 13, and the three inner thread sleeves 24 are reset.

[0028] Please refer to Figures 10-11 , the top of the rack 1 is provided with an auxiliary supporting assembly 20 capable of supporting and limiting the separation membrane component 12, the auxiliary supporting assembly 20 comprises a linkage support 201 and an arc-shaped plate 202, the inner wall of the arc-shaped plate 202 is fixed on the surface of the separation membrane component 12, two transition pressure plates 203 in opposite positions are installed on the structure surface away from the separation membrane component 12, half-open strip grooves are formed in the interiors of the two transition pressure plates 203, air cylinders 204 are installed at the top and bottom of the linkage support 201, and the output directions of the two air cylinders 204 are opposite and are both transmissionally connected with cross-shaped rods 205 capable of being clamped and pressed with the corresponding half-open strip grooves.

[0029] The biological membrane separation equipment biological membrane separation equipment, when in use, considering the stability of the separation membrane component 12 during continuous use, the separation membrane component 12 in use is clamped and supported by the auxiliary supporting assembly 20, and the specific operation is as follows: After the assembly of the separation membrane part 12 with the second electromagnetic valve pipe 13, the first electromagnetic valve pipe 11 and the third electromagnetic valve pipe 14 is completed, the transition pressure plate 203 mounted on the surface thereof will be first sleeved with one end of the cross-shaped rod 205 under the support of the arc-shaped plate 202, then, two air cylinders 204 are started, and the cross-shaped rod 205 and the corresponding transition pressure plate 203 are clamped and limited by the output ends of the two air cylinders 204 respectively.

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or equipment.

[0031] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A chitosan oligosaccharide separation and purification membrane device, comprising a frame (1), characterized in that: The frame (1) is equipped with a pretreatment box (2), which is equipped with a fixed liquid guide pipe (3) and a filter cylinder (4). The fixed liquid guide pipe (3) is installed inside the filter cylinder (4). The two ends of the filter cylinder (4) are respectively connected to the top and bottom structures of the pretreatment box (2). The bottom of the filter cylinder (4) is equipped with a drain valve pipe (8). The top of the pretreatment box (2) is equipped with a power output component (7) that can drive the top end of the filter cylinder (4) and a positioning bracket (5) that limits the installation of the top end of the fixed liquid guide pipe (3). The bottom of the fixed liquid guide pipe (3) is fixed with a brush plate assembly (6) that can contact the inner wall of the filter cylinder (4). The filter cylinder (4) can rotate and self-clean under the drive of the power output component (7) in conjunction with the brush plate assembly (6). The bottom of the pretreatment tank (2) is equipped with several membrane separation components arranged around its circumference. The membrane separation components are provided with a concentrated liquid output end and a clear liquid output end inside. Several concentrated liquid output ends are connected to a first collecting pipe, and several clear and concentrated liquid output ends are connected to a second collecting pipe.

2. The chitosan oligosaccharide separation and purification membrane equipment according to claim 1, characterized in that: The first shaft sealing ring and the first support bearing are nested at the fitting point between the filter cylinder (4) and the pretreatment box (2), and at the fitting point between the top end of the fixed liquid guide pipe (3) and the top end of the filter cylinder (4). A through-shaped guide groove is opened at the bottom of the fixed liquid guide pipe (3), and a flange is fixed at the top end of the fixed liquid guide pipe (3).

3. The chitosan oligosaccharide separation and purification membrane equipment according to claim 1, characterized in that: The power output component (7) includes a reducer (71), a brake servo motor (72), a first gear (73), and a second gear (74). The first gear (73) and the second gear (74) mesh with each other and are respectively mounted on the surface of the top end of the filter cylinder (4) and are connected to the output end of the reducer (71). The output end of the brake servo motor (72) is connected to the input end of the reducer (71), and the housing of the brake servo motor (72) and the housing of the reducer (71) are both installed on the top of the pretreatment box (2).

4. The chitosan oligosaccharide separation and purification membrane equipment according to claim 3, characterized in that: The filter cylinder (4) is composed of a Chinese character-shaped frame cylinder and several filter screens fixedly nested in the middle side wall of the Chinese character-shaped frame cylinder, and the second gear (74) fitted at the top end of the filter cylinder (4) is movably connected to the positioning bracket (5).

5. The chitosan oligosaccharide separation and purification membrane equipment according to claim 1, characterized in that: The brush plate assembly (6) includes a C-shaped support plate (61). Several brush strips (62) are arranged from top to bottom on one side of the C-shaped support plate (61). The end of the brush strip (62) away from the C-shaped support plate (61) can be in contact with the inner wall of the filter screen in the filter screen cylinder (4). Both ends of the C-shaped support plate (61) are fixed on the surface of the bottom of the fixed liquid guide tube (3).

6. The chitosan oligosaccharide separation and purification membrane device according to claim 1, characterized in that: The pretreatment box (2) is internally fitted with an I-shaped cylinder (9) and a spiral blade (10) that can be movably connected to the filter cylinder (4). A linkage rod is provided between the bottom of the I-shaped cylinder (9) and the top of the spiral blade (10). The top end of the I-shaped cylinder (9) is fitted between the top structure of the pretreatment box (2) and the surface of the top end of the filter cylinder (4). A second shaft sealing ring and a second support bearing are nested at the fitting points of the I-shaped cylinder (9) and the pretreatment box (2) and the fitting points of the I-shaped cylinder (9) and the filter cylinder (4). A linkage mechanism is provided between the top end of the I-shaped cylinder (9) and the top end of the filter cylinder (4) so ​​that the I-shaped cylinder (9) can rotate synchronously with the filter cylinder (4) through the linkage mechanism.

7. The chitosan oligosaccharide separation and purification membrane equipment according to claim 6, characterized in that: The top end of the I-shaped cylinder (9) is set as a T-shaped structure. The linkage mechanism includes a conductive slip ring (25) and an annular electromagnet (26). The annular electromagnet (26) is fixedly fitted on the outside of the top end of the filter cylinder (4) and can magnetically attract the top surface of the I-shaped cylinder (9). The conductive slip ring (25) is movably fitted on the outside of the top of the filter cylinder (4). A support rod is installed between the shell surface of the conductive slip ring (25) and the top surface of the pretreatment box (2). The conductive slip ring (25) is electrically connected to the annular electromagnet (26) through a wire.

8. The chitosan oligosaccharide separation and purification membrane device according to claim 1, characterized in that: The membrane separation assembly includes a separation membrane component (12). A first solenoid valve tube (11) is provided between the top of the separation membrane component (12) and the bottom of the pretreatment tank (2). A second solenoid valve tube (13) and a third solenoid valve tube (14) are respectively provided at the bottom of the separation membrane component (12). A quick-connect structure is provided between the top port of the separation membrane component (12) and the bottom of the first solenoid valve tube (11), and between the bottom port of the separation membrane component (12) and one end of the second solenoid valve tube (13) or one end of the third solenoid valve tube (14). The second solenoid valve tube (13) serves as the output end of the clear liquid and the third solenoid valve tube (14) serves as the output end of the concentrated liquid of the separation membrane component (12). Both the second solenoid valve tube (13) and the third solenoid valve tube (14) are equipped with electronic flow meters. The first collecting pipe includes a second ring pipe (16) and a second collecting conduit (18). The end of the third solenoid valve pipe (14) away from the separation membrane component (12) is fitted inside the second ring pipe (16). One end of the second collecting conduit (18) is fixed to the bottom of the second ring pipe (16). The second collecting pipe includes a first ring pipe (15) and a first collecting conduit (17). The end of the second solenoid valve pipe (13) away from the separation membrane component (12) is fitted inside the first ring pipe (15). One end of the first collecting conduit (17) is fixedly fitted to the bottom of the first ring pipe (15). The surface of the first ring pipe (15) and the surface of the second ring pipe (16) are connected together to an auxiliary frame (19) fitted inside the bottom of the frame (1).

9. The chitosan oligosaccharide separation and purification membrane equipment according to claim 8, characterized in that: The quick-assembly structure includes a first T-type connector (21) and an auxiliary sealing ring (23). One end of the first T-type connector (21) is fixed to the corresponding port of the separation membrane component (12). One end of the second T-type connector (22) is connected to the corresponding port of the first solenoid valve tube (11), the second solenoid valve tube (13), or the third solenoid valve tube (14). The surface of the other end of the first T-type connector (21) is provided with an external thread, and the other end of the second T-type connector (22) is fitted with an internal thread sleeve (24) that can be threaded to the outer surface of the first T-type connector (21). During the spiral engagement of the internal thread sleeve (24) and the first T-type connector (21), the first T-type connector (21) and the second T-type connector (22) can be fitted together. The end face of the other end of the second T-type connector (22) is nested with an auxiliary sealing ring (23).

10. The chitosan oligosaccharide separation and purification membrane device according to claim 8, characterized in that: An auxiliary support assembly (20) is provided at the top of the frame (1) to support and limit the separation membrane component (12). The auxiliary support assembly (20) includes a linkage bracket (201) and an arc plate (202). The inner wall of the arc plate (202) is fixed to the surface of the separation membrane component (12). Two transition pressure plates (203) in opposite positions are installed on the structural surface of the arc plate (202) away from the separation membrane component (12). The interior of the two transition pressure plates (203) is provided with a semi-open strip groove. Cylinders (204) are installed at the top and bottom of the linkage bracket (201). The output directions of the two cylinders (204) are opposite and they are both connected to a cross-shaped rod (205) that can engage and press against the corresponding semi-open strip groove.

Images