CN219324071U

CN219324071U - Seawater desalination membrane structure

Info

Publication number: CN219324071U
Application number: CN202223465503.5U
Authority: CN
Inventors: 张学军
Original assignee: Weihai Zhifan Marine Equipment Technology Co ltd
Current assignee: Weihai Zhifan Marine Equipment Technology Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-07-11
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses a seawater desalination membrane structure, which comprises a water feeding seat, wherein the water feeding seat is a disc-type structural plate, a plurality of support rods arranged in an annular structure extend out of the bottom of the water feeding seat, the bottoms of the support rods are connected with plugging seats, and reverse osmosis membranes are wrapped outside the support rods; the utility model relates to the technical field of membrane structures, in the sea water desalination membrane structure, a membrane main body with a cylindrical structure is adopted, a water feeding seat with a disc-shaped structure is arranged at the upper part of the membrane main body, a separation pipe on the water feeding seat is used for extracting a separation object in the cylindrical membrane main body, an annular supporting sleeve capable of rotating along with water pressure is used for fixing a reverse osmosis membrane, centrifugal force is utilized for separation, and an ultrasonic transducer is arranged in the annular supporting sleeve for vibrating the reverse osmosis membrane, so that pollutants on the reverse osmosis membrane are further separated.

Description

Seawater desalination membrane structure

Technical Field

The utility model relates to the technical field of membrane structures, in particular to a sea water desalination membrane structure.

Background

The sea water desalination is an effective means for relieving the depletion of fresh water resources at the present stage, the sea water desalination treatment modes are various, the common sea water freezing method, electrodialysis method, distillation method, reverse osmosis method and ammonium carbonate ion exchange method at the present stage are mainly adopted, and the reverse osmosis method is based on a reverse osmosis membrane, and the sea water and the fresh water are separated by a semipermeable membrane which only allows solvent to permeate and does not allow solute to permeate.

In the application process, the reverse osmosis method for desalting seawater is widely applied because the engineering cost and the running cost are continuously reduced, the reverse osmosis membrane treatment equipment at the present stage is of a frame membrane structure with multiple components as an inner structure and an outer structure, fresh water separation is realized in the process of permeation of seawater from outside to inside, and a seawater desalination reverse osmosis membrane element disclosed in the patent publication No. CN210393826U is of the structure, in order to increase the membrane utilization time, the corrosion and pollution of salt separated by seawater in the membrane use process are avoided, a central tube is arranged in a shell, the membrane rolling effect is realized, and a first corner adhesive tape and a second corner adhesive tape are uniformly arranged between the first side adhesive tape and the third side adhesive tape at the top end of a second flow guide cloth, a roundabout flow channel is formed in the reverse osmosis membrane element, the flow velocity of fluid is increased, and the pollution rate of the surface of the reverse osmosis membrane is reduced, but the following problems still exist in doing so as follows; 1. seawater contains a plurality of corrosive ions, a reverse osmosis membrane can be replaced periodically to avoid corrosion, but the membrane frame is soaked in the seawater for a long time, and although the service life of the membrane frame can be prolonged by anti-corrosion treatment, the seawater is still difficult to resist penetration and corrosion of the seawater to gaps, and after the service time is long, the seawater is penetrated into the gaps, so that the structural strength and the service life are reduced by corrosion; 2. in the process of separating and desalting, salt ions in seawater can be trapped on the outer side of the reverse osmosis membrane structure, so that the outer part of the membrane is polluted, regular cleaning is needed, the rate of pollutant accumulation can be reduced by increasing the flow rate of the outer part of the membrane, but in the application process, the fluid rate in a seawater purifying pond is limited, so that the cleaning effect is poor.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a seawater desalination membrane structure, which solves the problems of the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the seawater desalination membrane structure comprises a water feeding seat, wherein the water feeding seat is a disc-type structural plate, a plurality of support rods arranged in an annular structure extend out of the bottom of the water feeding seat, the bottoms of the support rods are connected with plugging seats, and reverse osmosis membranes are wrapped outside the support rods;

the center of the water feeding seat is provided with a separation pipe, and the separation pipe penetrates through the water feeding seat and is inserted between the support rods;

the outer parts of the support rods are wrapped with annular support sleeves, and the annular support sleeves are provided with a plurality of sieve holes;

the reverse osmosis membrane is wrapped outside the annular supporting sleeve, and two ends of the annular supporting sleeve are respectively connected with a pair of sliding rings;

a pair of sliding grooves are respectively formed in the water feeding seat and the plugging seat, a pair of sliding rings are movably assembled on the pair of sliding grooves, and a pair of sealing rings are arranged on the inner sides of the pair of sliding grooves;

the inner side of the annular supporting sleeve is connected with an ultrasonic cleaning assembly.

Preferably, the pair of sealing rings are a pair of annular plates with L-shaped cross sections.

Preferably, a pair of encircling fastening hoops are symmetrically arranged at the upper end and the lower end of the reverse osmosis membrane.

Preferably, the center of the water feeding seat is provided with an internal thread opening, and the separating tube is provided with a connecting thread block which is in threaded connection with the internal thread opening.

Preferably, the ultrasonic cleaning assembly comprises an ultrasonic transducer, a waterproof shell is wrapped outside the ultrasonic transducer, and the waterproof shell is connected to the inner side wall surface of the annular supporting sleeve.

Preferably, the waterproof shell is a plate of a cylindrical structure.

Advantageous effects

The utility model provides a seawater desalination membrane structure. The beneficial effects are as follows: this sea water desalination membrane structure adopts the membrane main part of barrel-type structure, and the upper portion sets up the seat of going up of disk-type structure, extracts the separator in the barrel-type membrane main part through the separator tube on the seat of going up, utilizes can be along with the fixed reverse osmosis membrane of water pressure pivoted annular support cover, when utilizing centrifugal force to separate, sets up ultrasonic transducer in annular support cover inside and can shake reverse osmosis membrane to further separate the pollutant on the reverse osmosis membrane.

Drawings

Fig. 1 is a schematic diagram of a front view of a seawater desalination membrane structure according to the present utility model.

Fig. 2 is a schematic top view of a seawater desalination membrane structure according to the present utility model.

Fig. 3 is a partial isometric view of a desalination membrane structure according to the utility model.

In the figure: 1. a water feeding seat; 2. a support rod; 3. a plugging seat; 4. a reverse osmosis membrane; 5. a separation tube; 6. an annular support sleeve; 7. a slip ring; 8. a sliding groove; 9. a seal ring; 10. encircling the fastening hoop; 11. an internal thread opening; 12. an ultrasonic transducer; 13. a waterproof housing.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: according to the description, as shown in the attached drawings 1-3, the scheme is a seawater desalination membrane structure, which comprises a water feeding seat 1, wherein the water feeding seat 1 is a disc-type structural plate, a plurality of support rods 2 which are arranged in an annular structure extend out of the bottom of the water feeding seat 1, the bottoms of the support rods 2 are connected with a plugging seat 3, reverse osmosis membranes 4 are wrapped outside the support rods 2, the support rods 2 are connected between the water feeding seat 1 and the plugging seat 3 to jointly form a cage-type support device, the reverse osmosis membranes 4 form a cylindrical filtering device outside the support rods 2, the inner side and the outer side of the reverse osmosis membranes 4 form independent cavities on two sides, seawater permeates into cavities inside the reverse osmosis membranes 4 from outside to inside, and is separated by the water feeding seat 1;

according to the description and the attached figures 1-3, a separating pipe 5 is arranged in the center of the water feeding seat 1, the separating pipe 5 penetrates through the water feeding seat 1 and is inserted between a plurality of support rods 2, and the separating pipe 5 is used for separating seawater into the water feeding seat 1 and separating and extracting fluid between the blocking seats 3;

the outside of the supporting rods 2 is wrapped with an annular supporting sleeve 6, a plurality of sieve holes are formed in the annular supporting sleeve 6 and used for passing through the separated matters, and the annular supporting sleeve 6 is used for installing the reverse osmosis membrane 4;

the reverse osmosis membrane 4 is wrapped outside the annular supporting sleeve 6, two ends of the annular supporting sleeve 6 are respectively connected with a pair of sliding rings 7, and the pair of sliding rings 7 are used for supporting the annular supporting sleeve 6;

a pair of sliding grooves 8 are respectively formed in the water feeding seat 1 and the plugging seat 3, a pair of sliding rings 7 are movably assembled on the pair of sliding grooves 8, a pair of sealing rings 9 are arranged on the inner sides of the pair of sliding grooves 8, the pair of sliding grooves 8 are used for assembling the pair of sliding rings 7, and the pair of sliding rings 7 can rotate under the impact of water flow, so that the reverse osmosis membrane 4 rotates along with the sliding rings, and impurities attached to the outside of the reverse osmosis membrane 4 are thrown out and stripped by utilizing centrifugal force;

the inner side of the annular supporting sleeve 6 is connected with an ultrasonic cleaning assembly, and the reverse osmosis membrane 4 can be cleaned ultrasonically through the ultrasonic cleaning assembly, so that dirt is prevented from being blocked on the annular supporting sleeve 6.

Preferably, the pair of sealing rings 9 are a pair of annular plates with L-shaped cross sections, and the pair of sealing rings 9 play a role in sealing the outer parts of the pair of sliding rings 7.

As a preferred scheme, further, a pair of encircling fastening hoops 10 are symmetrically arranged at the upper end and the lower end of the reverse osmosis membrane 4, and are used for fixing the reverse osmosis membrane 4 outside the annular supporting sleeve 6.

As a preferable scheme, further, the center of the water feeding seat 1 is provided with an internal thread opening 11, and the separating tube 5 is provided with a connecting thread block in threaded connection with the internal thread opening 11 for fixing the separating tube 5.

As a preferred scheme, still further, the ultrasonic cleaning subassembly includes ultrasonic transducer 12, and ultrasonic transducer 12 outside parcel has waterproof shell 13, and waterproof shell 13 connects on annular support sleeve 6's inside wall face, and waterproof shell 13 is connected with annular support sleeve 6 and is used for placing ultrasonic transducer 12, and the effect decline ultrasonic energy at ultrasonic transducer 12 gives annular support sleeve 6 to utilize annular support sleeve 6 to realize ultrasonic vibration to reverse osmosis membrane 4, carry out impurity clearance.

Preferably, the waterproof housing 13 is a plate of cylindrical structure.

As is generally known from the above, in the seawater desalination membrane structure, a membrane main body of a cylindrical structure is adopted, a water supply seat 1 of a disc structure is arranged at the upper part, a separation pipe 5 on the water supply seat 1 is used for extracting a separation object in the cylindrical membrane main body, a reverse osmosis membrane 4 is fixed by an annular support sleeve 6 capable of rotating along with water pressure, centrifugal force is utilized for separation, and meanwhile, an ultrasonic transducer 12 is arranged in the annular support sleeve 6 to vibrate the reverse osmosis membrane 4, so that pollutants on the reverse osmosis membrane 4 are further separated.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The seawater desalination membrane structure comprises a water feeding seat, wherein the water feeding seat is a disc-type structural plate, a plurality of support rods arranged in an annular structure extend out of the bottom of the water feeding seat, and the bottoms of the support rods are connected with plugging seats;

2. A desalination membrane structure according to claim 1 wherein the pair of sealing rings are a pair of annular plates of L-shaped cross-section.

3. The seawater desalination membrane structure of claim 2, wherein a pair of encircling fastening hoops are symmetrically arranged at the upper and lower ends of the reverse osmosis membrane.

4. A desalination membrane structure according to claim 3, wherein the center of the water supply seat is provided with an internal thread port, and the separation tube is provided with a connection thread block in threaded connection with the internal thread port.

5. A desalination membrane structure according to claim 4 wherein the ultrasonic cleaning assembly comprises an ultrasonic transducer, the ultrasonic transducer is externally wrapped with a waterproof housing, and the waterproof housing is connected to the inner side wall surface of the annular support sleeve.

6. A desalination membrane structure according to claim 5 wherein the waterproof enclosure is a block of cylindrical construction.