CN114272757B - Reverse osmosis membrane module and cleaning equipment - Google Patents
Reverse osmosis membrane module and cleaning equipment Download PDFInfo
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- CN114272757B CN114272757B CN202210027711.2A CN202210027711A CN114272757B CN 114272757 B CN114272757 B CN 114272757B CN 202210027711 A CN202210027711 A CN 202210027711A CN 114272757 B CN114272757 B CN 114272757B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The invention relates to a reverse osmosis membrane assembly and cleaning equipment, wherein the reverse osmosis membrane assembly comprises an end cover, a shell, a central pipe and a reverse osmosis membrane, the reverse osmosis membrane is arranged in the shell, the end cover is arranged at two ends of the shell, the end cover and the shell are of an integrated structure, and the central pipe is arranged in the reverse osmosis membrane; the shell comprises a first shell and a second shell, the first shell and the second shell are both provided with connecting ends, the first shell and the second shell are connected through the connecting ends, and the connecting ends of the first shell and the second shell comprise a first end face, a second end face and a third end face; one of the second end face of the first shell and the second end face of the second shell is provided with a convex block, the other one of the second end face of the first shell and the second end face of the second shell is provided with a clamping groove corresponding to the convex block one to one, and when the first shell is connected with the second shell, the convex block is embedded into the clamping groove. The reverse osmosis membrane module provided by the invention can improve the pressure bearing performance of the shell.
Description
Technical Field
The invention relates to the technical field of reverse osmosis membranes, in particular to a reverse osmosis membrane assembly and cleaning equipment.
Background
The reverse osmosis membrane is an artificial semipermeable membrane. Reverse osmosis membrane assemblies typically include a housing, end caps, and a filter element disposed within the housing, with the end caps mounted on both sides of the housing. The shell and the end cover in the reverse osmosis membrane module are pressure-bearing parts, so that sealing treatment is needed between the shell and the end cover.
In the reverse osmosis membrane assembly in the prior art, particularly an industrial reverse osmosis membrane assembly, the pressure of a booster pump is high, when a stock solution passes through a filter element, a shell and an end cover bear high pressure, and if the sealing is not tight or the binding force between the shell and the end cover is insufficient, the shell and the end cover are easy to separate under the action of water pressure, so that the reverse osmosis membrane assembly is damaged. For example, patent application No. CN200910305035.5, which discloses an integrated reverse osmosis membrane and a method for its use in water treatment and a water treatment apparatus, which withstands the water pressure in the reverse osmosis process by using a membrane end cap of a closed structure; the membrane element is connected with the membrane end cover by adopting a membrane element which is wound by glass fiber in a crossed manner, the membrane element and the membrane end cover are connected and then cured, and no gap is left between the membrane element and the membrane end cover to form an integration. But the membrane element and the membrane end cover are directly bonded and cured, other fixing measures are not adopted between the membrane element and the membrane end cover, the binding force between the membrane element and the membrane end cover is poor, and the membrane element and the membrane end cover are easy to separate when the water pressure is higher, so that the reverse osmosis membrane component is damaged.
Disclosure of Invention
The invention aims to provide a reverse osmosis membrane component and cleaning equipment to improve the pressure bearing performance of a shell in the reverse osmosis membrane component.
On one hand, the embodiment of the invention provides a drawer type switch cabinet, which comprises 1. a reverse osmosis membrane assembly, and is characterized by comprising an end cover, a shell, a central tube and a reverse osmosis membrane, wherein the shell is of a hollow cavity structure, the reverse osmosis membrane is arranged in the shell, the end cover is arranged at two ends of the shell so as to seal the shell, the end cover and the shell are of an integrated structure, the central tube is arranged in the reverse osmosis membrane, two ends of the central tube respectively extend out of the end covers at the two ends of the shell, one end of the central tube is connected with a liquid inlet pipeline, the other end of the central tube is connected with a membrane permeation liquid pipeline, and the end cover close to a membrane permeation liquid outlet is connected with a concentrated liquid pipeline;
the shell is provided with a preset length and comprises a first shell and a second shell, the first shell and the second shell are coaxially arranged, the first shell and the second shell are provided with connecting ends, the first shell and the second shell are connected through the connecting ends, the connecting ends of the first shell and the second shell respectively comprise a first end face, a second end face and a third end face, when the first shell is connected with the second shell, the first end face of the first shell is abutted against the third end face of the second shell, the second end face of the first shell is abutted against the second end face of the second shell, and the third end face of the first shell is abutted against the first end face of the second shell;
one of the second end face of the first shell and the second end face of the second shell is provided with a convex block, the other one of the second end face of the first shell and the second end face of the second shell is provided with a clamping groove corresponding to the convex block one to one, and when the first shell is connected with the second shell, the convex block is embedded into the clamping groove.
The above aspect and any possible implementation manner further provide an implementation manner, where the number of the bumps is multiple, and the number of the card slots corresponds to the number of the bumps.
The above aspect and any possible implementation further provide an implementation in which the second end face of the first housing and the second end face of the second housing are both inclined faces.
The above aspect and any possible implementation manner further provide an implementation manner, further including a collar, where the collar is sleeved at a connection position of the first housing and the second housing.
The above aspect and any possible implementation manner further provide an implementation manner, further including a fixing assembly, where the fixing assembly includes a first fixing plate, a second fixing plate, and a connecting shaft, the first fixing plate and the second fixing plate are connected by the connecting shaft, a plurality of fixing grooves are disposed on each of the first fixing plate and the second fixing plate, each fixing groove has a predetermined length, and each fixing groove is an arc-shaped groove.
In one embodiment, the fixing grooves are symmetrically distributed on two sides of the central axis of the first fixing plate and the central axis of the second fixing plate.
The above aspect and any possible implementation manner further provide an implementation manner, wherein connecting rods are disposed on two sides of the end cap, the end cap is connected to the fixing grooves of the first fixing plate and the second fixing plate through the connecting rods, annular positioning grooves are disposed on the connecting rods, and when the end cap is connected to the first fixing plate and the second fixing plate, the positioning grooves of the connecting rods are disposed in the fixing grooves of the first fixing plate and the second fixing plate;
the width of constant head tank with first fixed plate with the thickness of second fixed plate is the same, so that the end cover with first fixed plate with when the second fixed plate is connected, the constant head tank can with first fixed plate and second fixed plate joint.
The above aspect and any possible implementation manner further provide an implementation manner, where the number of the connecting shafts is plural, and the plural connecting shafts are detachably connected to the first fixing plate and the second fixing plate, and the plural connecting shafts are arranged in parallel with each other.
As for the aspects and any possible implementation manner described above, an implementation manner is further provided, in which the first fixing plate and the second fixing plate are both connected to the connecting shaft through the connecting hole, the connecting shaft is provided with a positioning groove matching with the positioning protrusion, and when the first fixing plate and the second fixing plate are both connected to the connecting shaft, the positioning protrusion is clamped with the positioning groove;
and locking bolts are arranged on two sides of the first fixing plate and the second fixing plate and are in threaded connection with the connecting shaft.
On the other hand, the embodiment of the present invention further provides a cleaning device for a reverse osmosis membrane module, which is applied to the reverse osmosis membrane module in any one of the above embodiments, and is characterized by comprising a clean water tank, a first connecting pipeline and a second connecting pipeline, wherein a water inlet pipe of the clean water tank is connected with the membrane permeate pipeline through the first connecting pipeline, a water outlet pipe of the clean water tank is connected with the concentrate pipeline through the second connecting pipeline, and the second connecting pipeline is provided with a booster pump.
According to the reverse osmosis membrane module provided by the embodiment of the invention, the shell comprises the first shell and the second shell, the first shell, the second shell and the end cover are of an integrated structure, the binding force between the first shell and the end cover and the binding force between the second shell and the end cover can be increased, and the forming difficulty can be reduced. In addition, be connected through the link between first casing and the second casing, the link includes first terminal surface, second terminal surface and third terminal surface, be favorable to increasing the area of the link terminal surface of terminal surface, can make more glue solution fill between the terminal surface, thereby improve the cohesion between first casing and the second casing, and, one of the second terminal surface of the second casing of first casing and second sets up the draw-in groove, another sets up the lug, when first casing is connected with the second casing, the lug joint is in the draw-in groove, thereby can increase first casing and second casing coupling force, and further increase the area of link terminal surface, improve the cohesion of first casing and second casing.
It should be understood that the statements herein reciting aspects are not intended to limit the critical or essential features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.
Drawings
Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features.
FIG. 1 is a schematic structural diagram of a reverse osmosis membrane module provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a reverse osmosis membrane module according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a cross-sectional view of another reverse osmosis membrane module provided in accordance with an embodiment of the invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
FIG. 6 is a distribution diagram of a reverse osmosis membrane module according to an embodiment of the present invention with bumps on a second end face;
FIG. 7 is a schematic structural diagram of a fixing component in a reverse osmosis membrane module provided in an embodiment of the invention;
FIG. 8 is a schematic structural diagram of a first fixing plate in the reverse osmosis membrane module according to the embodiment of the present invention;
fig. 9 is a schematic structural view of another first fixing plate in the reverse osmosis membrane module according to the embodiment of the present invention;
fig. 10 is a schematic structural diagram of a cleaning device for a reverse osmosis membrane module according to an embodiment of the present invention.
1 end cover, 2 shells, 21 first casing, 22 second casing, 23 lugs, 24 draw-in grooves, 3 center tubes, 4 reverse osmosis membranes, 5 lantern rings, 6 first fixed plates, 7 second fixed plates, 8 connecting shafts, 9 fixed slots, 10 connecting rods, 11 positioning grooves, 12 clean water tanks, 13 first connecting pipelines, 14 second connecting pipelines, 15 liquid inlet pipelines, 16 membrane permeate liquid pipelines, and 17 concentrate liquid pipelines.
Detailed Description
Features of various aspects of the present application and exemplary embodiments will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present application; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected. In the figure, the "X" direction is a first direction, the "Y" direction is a second direction, the "Z" direction is a third direction, and the first direction, the second direction and the third direction are perpendicular to each other. The specific meaning of the above terms in the present application can be understood as appropriate by one of ordinary skill in the art.
For better understanding of the present invention, a reverse osmosis membrane module and a cleaning apparatus according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 10.
Fig. 1 is a schematic structural view of a reverse osmosis membrane module according to an embodiment of the present invention, fig. 2 is a sectional view of a reverse osmosis membrane module according to an embodiment of the present invention, fig. 3 is a partially enlarged view of fig. 2, fig. 4 is a sectional view of another reverse osmosis membrane module according to an embodiment of the present invention, and fig. 5 is a partially enlarged view of fig. 4.
Referring to fig. 1 to 5 together, an embodiment of the present invention provides a reverse osmosis membrane module, including an end cover 1, a shell 2, a central tube 3 and a reverse osmosis membrane 4, wherein the shell 2 is a hollow cavity structure, the reverse osmosis membrane 4 is disposed inside the shell 2, the end covers 1 are disposed at two ends of the shell 2 to seal the shell 2, the central tube 3 is disposed inside the reverse osmosis membrane 4, and two ends of the central tube respectively extend out of the end covers 1 at two ends of the shell 2, one end of the central tube 3 is connected to a liquid inlet pipeline 15, the other end is connected to a membrane permeate pipeline 16, and the end cover 1 near a membrane permeate outlet is connected to a concentrated liquid pipeline 17.
The housing 2 has a predetermined length, and the predetermined length of the housing 2 may be set as required, and the embodiment of the present application is not limited herein. The housing 2 includes a first shell 21 and a second shell 22, the first shell 21 and the second shell 22 are coaxially disposed, the first shell 21 and the second shell 22 each have a connecting end, the first shell 21 and the second shell 22 are connected through the connecting end, and optionally, a curing connection or an adhesive connection may be adopted between the first shell 21 and the second shell 22. The connecting ends of the first shell 21 and the second shell 22 respectively comprise a first end face, a second end face and a third end face, when the first shell 21 is connected with the second shell 22, the first end face of the first shell 21 is abutted against the third end face of the second shell 22, the second end face of the first shell 21 is abutted against the second end face of the second shell 22, and the third end face of the first shell 21 is abutted against the first end face of the second shell 22;
one of the second end surface of the first housing 21 and the second end surface of the second housing 22 is provided with a bump 23, and the other is provided with a slot 24 corresponding to the bump 23 one by one, and when the first housing 21 is connected with the second housing 22, the bump 23 is embedded into the slot 24. Optionally, the protrusion 23 may be integrated with the first housing 21 or the second housing 22 to reduce the difficulty of molding. Alternatively, the projection 23 may be provided on the second end face of the first housing 21, and the card slot 24 may be provided on the second end face of the second housing 22. The end caps 1 are respectively arranged on the shells 2 of the first shell 21 and the second shell 22, and the end caps 1 and the shells 2 are of an integral structure, that is, the first shell 21 and the second shell 22 and the end caps 1 on the outer sides of the first shell 21 and the second shell 22 are of an integral structure.
According to the reverse osmosis membrane module provided by the embodiment of the invention, the shell 2 comprises the first shell 21 and the second shell 22, the first shell 21, the second shell 22 and the end cover 1 are of an integrated structure, the bonding force between the first shell 21 and the end cover 1 and the bonding force between the second shell 22 and the end cover 1 can be increased, and the forming difficulty can be reduced. In addition, be connected through the link between first casing 21 and the second casing 22, the link includes first terminal surface, second terminal surface and third terminal surface, be favorable to increasing the area of the link terminal surface of terminal surface, can make more glue solution fill between the terminal surface, thereby improve the cohesion between first casing 21 and the second casing 22, and, one of the second terminal surface of first casing 21 and second casing 22 sets up draw-in groove 24, the other sets up lug 23, when first casing 21 is connected with second casing 22, lug 23 joint is in draw-in groove 24, thereby can increase first casing 21 and second casing 22 engaging force, and further increase the area of link terminal surface, improve the cohesion of first casing 21 and second casing 22.
Fig. 6 is a distribution diagram of the projections on the second end surface of the reverse osmosis membrane module according to the embodiment of the invention.
Referring to fig. 6, in some alternative embodiments, the number of the protrusions 23 is multiple, and the number of the locking grooves 24 corresponds to the number of the protrusions 23, so that the connection stability of the first housing 21 and the second housing 22 can be further improved. And the area of the end face of the connection end can be further increased, so that when the first shell 21 and the second shell 22 are in curing connection or glue connection, more glue solution can be filled among the first end face, the second end face and the third end face, and the bonding force between the first shell 21 and the second shell 22 is increased.
Alternatively, the protrusions 23 and the locking grooves 24 may be in a plurality of rows and evenly distributed on the second end surfaces of the first and second housings 21 and 22. For example, three rows of bumps 23 may be disposed on the second end surface of the first housing 21, three rows of slots 24 may be disposed on the second end surface of the second housing 22, each row of bumps 23 corresponds to a slot 24 one by one, each row of bumps 23 and slots 24 has a plurality of bumps 23 and slots 24, and the front and rear bumps 23 or slots 24 are distributed in a staggered manner, so as to increase the connection force between the first housing and the second housing 22.
With continued reference to fig. 3 and 5, in some embodiments, the second end face of the first housing 21 and the second end face of the second housing 22 may be horizontal faces. Of course, in other embodiments, the second end surface of the first housing 21 and the second end surface of the second housing 22 are both inclined surfaces. It is understood that the inclined surface has a larger area than the horizontal surface, and thus, providing the second end surface of the first housing 21 and the second end surface of the second housing 22 as inclined surfaces is advantageous to further increase the coupling force between the second end surface of the first housing 21 and the second end surface of the second housing 22.
Alternatively, the inclination angles of the second end surface of the first housing 21 and the second end surface of the second housing 22 are the same, and may be set between 10 ° and 30 °, for example, the inclination angles of the second end surface of the first housing 21 and the second end surface of the second housing 22 may be 15 °.
With continued reference to fig. 1, in some alternative embodiments, the reverse osmosis membrane assembly further comprises a collar 5, and the collar 5 is sleeved on the connecting position of the first shell 21 and the second shell 22, so as to further increase the connecting force between the first shell 21 and the second shell 22. Alternatively, a cured or glued connection may be used between the collar 5 and the first and second housings 21, 22.
Fig. 7 is a schematic structural diagram of a fixing component in a reverse osmosis membrane module according to an embodiment of the present invention, fig. 8 is a schematic structural diagram of a first fixing plate in the reverse osmosis membrane module according to the embodiment of the present invention, and fig. 9 is a schematic structural diagram of another first fixing plate in the reverse osmosis membrane module according to the embodiment of the present invention.
Referring to fig. 7 to 9 together, in some optional embodiments, the reverse osmosis membrane module further includes a fixing module, the fixing module includes a first fixing plate 6, a second fixing plate 7 and a connecting shaft 8, the first fixing plate 6 and the second fixing plate 7 are connected by the connecting shaft 8, a plurality of fixing grooves 9 are formed in each of the first fixing plate 6 and the second fixing plate 7, and when the reverse osmosis membrane module is installed, the connecting end of the end cover 1 of the reverse osmosis membrane module can be embedded into the fixing grooves 9 of the first fixing plate 6 and the second fixing plate 7, so that the reverse osmosis membrane module can be installed quickly. Specifically, the openings of the fixing grooves 9 are provided on both side end surfaces of the first fixing plate 6 and the second fixing plate 7, thereby facilitating installation.
Alternatively, the structures of the first fixing plate 6 and the second fixing plate 7 may be identical. In addition, the fixing groove 9 has a predetermined length, the length of the fixing groove 9 may be set according to the area of the first fixing plate 6 or the second fixing plate 7, and the length of the fixing groove 9 may be appropriately increased without affecting the structural strength of the first fixing plate 6 and the second fixing plate 7, so that the reverse osmosis membrane module can be separated from the fixing groove 9 in an artificial situation.
Alternatively, the fixing groove 9 is a groove of an arc structure. It can be understood that the groove of the arc structure is more difficult to separate from the fixing groove 9 when the fixing member is vibrated or inclined than the groove of the linear structure, so that the connection stability between the end cover 1 and the first and second fixing plates 6 and 7 can be further improved.
In some optional embodiments, the fixing grooves 9 are symmetrically distributed on both sides of the central axis of the first fixing plate 6 and the second fixing plate 7, so that the gravity on both sides of the first fixing plate 6 and the second fixing plate 7 can be balanced, and the gravity center is near the central axis of the first fixing plate 6 and the second fixing plate 7, thereby stabilizing the whole device. For example, three fixing grooves 9 may be provided on both sides of the first and second fixing plates 6 and 7.
Alternatively, a gasket may be provided at the bottom of the fixing groove 9 of the first fixing plate 6 and the second fixing plate 7 to increase a buffering force between the end cap 1 and the fixing groove 9 when the end cap 1 enters the fixing groove 9.
In some optional embodiments, two sides of the end cap 1 are provided with connecting rods 10, the end cap 1 is connected with the fixing grooves 9 of the first fixing plate 6 and the second fixing plate 7 through the connecting rods 10, the connecting rods 10 are provided with annular positioning grooves 11, when the end cap 1 is connected with the first fixing plate 6 and the second fixing plate 7, the positioning grooves 11 of the connecting rods 10 are arranged in the fixing grooves 9 of the first fixing plate and the second fixing plate, the positioning grooves 11 have a certain depth, so that the first fixing plate 6 and the second fixing plate 7 can be embedded into the positioning grooves 11 by a certain depth, and the stability between the end cap 1 and the first fixing plate 6 and the second fixing plate 7 is further increased.
The width of constant head tank 11 is the same with the thickness of first fixed plate 6 and second fixed plate 7 to when making end cover 1 be connected with first fixed plate 6 and second fixed plate 7, constant head tank 11 can with first fixed plate and second fixed plate joint, thereby can make constant head tank 11 and first fixed plate 6 and second fixed plate 7 match, make end cover 1 can't move along the axial direction of center tube 3, and then restrict shell 2 between first fixed plate 6 and second fixed plate 7.
In some optional embodiments, the number of the connecting shafts 8 is multiple, and the connecting shafts 8 are detachably connected to the first fixing plate 6 and the second fixing plate 7, the connecting shafts 8 are arranged in parallel, and the stability of the first fixing plate 6 and the stability of the second fixing plate 7 and the connecting shafts 8 can be increased by increasing the number of the connecting shafts 8, so that the first fixing plate 6 and the second fixing plate 7 are prevented from shaking on the connecting shafts 8. Alternatively, the number of the connecting shafts 8 may be two, and the connecting shafts 8 may be connected to the bracket.
Further, first fixed plate 6 and second fixed plate 7 all are connected with connecting axle 8 through the connecting hole, be provided with the constant head tank 11 with the protruding matching in location on the connecting axle 8, when first fixed plate 6 and second fixed plate 7 all are connected with connecting axle 8, protruding and the constant head tank 11 joint in location, protruding and constant head tank 11 in location can make and match more between first fixed plate 6 and second fixed plate 7 and the connecting axle 8, can further increase first fixed plate 6 and second fixed plate 7 and connecting axle 8's stability, avoid first fixed plate 6 and second fixed plate 7 to take place to rock on connecting axle 8.
Alternatively, the first and second fixing plates 6 and 7 are detachably coupled to the coupling shaft 8, so that the distance between the first and second fixing plates 6 and 7 can be adjusted according to the length of the housing 2 to enable the fixing assembly to be matched to the length of the housing 2. Specifically, locking bolts may be disposed on both sides of the first fixing plate 6 and the second fixing plate 7, the locking bolts are both threadedly connected to the connecting shaft 8, and the positions of the first fixing plate 6 and the second fixing plate 7 on the connecting shaft 8 are changed by adjusting the positions of the bolts on the connecting shaft 8, so as to restrain the first fixing plate 6 and the second fixing plate 7 on the connecting shaft 8.
Fig. 10 is a schematic structural diagram of a cleaning device for a reverse osmosis membrane module according to an embodiment of the present invention.
Referring to fig. 10, in another aspect, the embodiment of the present invention further provides a cleaning device for a reverse osmosis membrane module, which is applied to the reverse osmosis membrane module in any one of the above embodiments, and the cleaning device includes a clean water tank 12, a first connecting pipeline 13 and a second connecting pipeline 14, wherein an inlet pipe of the clean water tank 12 is connected to a membrane permeate pipeline 16 through the first connecting pipeline 13, an outlet pipe of the clean water tank 12 is connected to a concentrate pipeline 17 through the second connecting pipeline 14, and a booster pump is disposed on the second connecting pipeline 14. The cleaning device provided by the embodiment of the invention adopts the back flush arrangement, so that the water outlet pipe of the clean water tank 12 is connected with the concentrated solution pipeline 17, the impurities in the reverse osmosis membrane 4 can be more easily washed and removed, and the cleaning effect is achieved.
In the embodiment of the invention, the clean water tank 12 and the membrane permeate pipeline 16 directly adopt the membrane permeate which is filtered by the reverse osmosis membrane component and has no impurities, so that the cleaning effect can be further improved. Optionally, a cleaning solution outlet is provided on the first casing 2 or the second casing 2, and the cleaned impurities may flow out through the cleaning solution outlet.
Further, the liquid inlet line 15, the membrane permeate line 16, the concentrated liquid line 17, the first connecting line 13, and the second connecting line 14 may be provided with electromagnetic valves so that the lines can be closed.
while the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. A reverse osmosis membrane assembly is characterized by comprising an end cover, a shell, a central tube and a reverse osmosis membrane, wherein the shell is of a hollow cavity structure, the reverse osmosis membrane is arranged in the shell, the end cover is arranged at two ends of the shell to seal the shell, the end cover and the shell are of an integrated structure, the central tube is arranged in the reverse osmosis membrane, two ends of the central tube respectively extend out of the end covers at the two ends of the shell, one end of the central tube is connected with a liquid inlet pipeline, the other end of the central tube is connected with a membrane permeation liquid pipeline, and the end cover close to a membrane permeation liquid outlet is connected with a concentrated liquid pipeline;
the shell is provided with a preset length and comprises a first shell and a second shell, the first shell and the second shell are coaxially arranged, the first shell and the second shell are provided with connecting ends, the first shell and the second shell are connected through the connecting ends, the connecting ends of the first shell and the second shell respectively comprise a first end face, a second end face and a third end face, when the first shell is connected with the second shell, the first end face of the first shell is abutted against the third end face of the second shell, the second end face of the first shell is abutted against the second end face of the second shell, and the third end face of the first shell is abutted against the first end face of the second shell;
one of the second end face of the first shell and the second end face of the second shell is provided with a convex block, the other one of the second end face of the first shell and the second end face of the second shell is provided with a clamping groove corresponding to the convex block one to one, and when the first shell is connected with the second shell, the convex block is embedded into the clamping groove;
the fixing assembly comprises a first fixing plate, a second fixing plate and a connecting shaft, the first fixing plate and the second fixing plate are connected through the connecting shaft, a plurality of fixing grooves are formed in the first fixing plate and the second fixing plate, the fixing grooves are of preset lengths, and the fixing grooves are arc-shaped structure grooves;
connecting rods are arranged on two sides of the end cover, the end cover is connected with the fixing grooves of the first fixing plate and the second fixing plate through the connecting rods, annular positioning grooves are formed in the connecting rods, and when the end cover is connected with the first fixing plate and the second fixing plate, the positioning grooves of the connecting rods are arranged in the fixing grooves of the first fixing plate and the second fixing plate;
the width of constant head tank with first fixed plate with the thickness of second fixed plate is the same, so that when the end cover with first fixed plate with the second fixed plate is connected, the constant head tank can with first fixed plate and second fixed plate joint.
2. The reverse osmosis membrane assembly of claim 1, wherein the tabs are plural in number and the slots correspond in number to the tabs.
3. The reverse osmosis membrane assembly of claim 1, wherein the second end face of the first housing and the second end face of the second housing are both sloped faces.
4. The reverse osmosis membrane assembly of claim 1, further comprising a collar disposed about the first housing and the second housing at a connection location.
5. The reverse osmosis membrane assembly of claim 1, wherein the fixation slots are symmetrically disposed on opposite sides of a central axis of the first and second fixation plates.
6. The reverse osmosis membrane assembly of claim 1, wherein the number of the connecting shafts is plural, and the connecting shafts are detachably connected to the first fixing plate and the second fixing plate, and the connecting shafts are arranged in parallel with each other.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210027711.2A CN114272757B (en) | 2022-01-11 | 2022-01-11 | Reverse osmosis membrane module and cleaning equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210027711.2A CN114272757B (en) | 2022-01-11 | 2022-01-11 | Reverse osmosis membrane module and cleaning equipment |
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| CN114272757A CN114272757A (en) | 2022-04-05 |
| CN114272757B true CN114272757B (en) | 2022-09-13 |
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| CN204147770U (en) * | 2014-05-19 | 2015-02-11 | 江苏凯米膜科技股份有限公司 | The backwashing system of the organic tubular membrane component of external |
| CN209890374U (en) * | 2019-03-04 | 2020-01-03 | 潍坊特钢集团有限公司 | Reverse osmosis membrane container that tolerance is strong end structure of intaking |
| CN113473325A (en) * | 2020-03-31 | 2021-10-01 | 歌尔股份有限公司 | Speaker and electronic apparatus |
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| US20150290589A1 (en) * | 2014-04-11 | 2015-10-15 | Parker-Hannifin Corporation | Encapsulating outer shell for membrane elements |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204147770U (en) * | 2014-05-19 | 2015-02-11 | 江苏凯米膜科技股份有限公司 | The backwashing system of the organic tubular membrane component of external |
| CN209890374U (en) * | 2019-03-04 | 2020-01-03 | 潍坊特钢集团有限公司 | Reverse osmosis membrane container that tolerance is strong end structure of intaking |
| CN113473325A (en) * | 2020-03-31 | 2021-10-01 | 歌尔股份有限公司 | Speaker and electronic apparatus |
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