CN210559546U

CN210559546U - Reverse osmosis device

Info

Publication number: CN210559546U
Application number: CN202020143652.1U
Authority: CN
Inventors: 张元召; 余建彬
Original assignee: Chengdu Heng'an Alarming Equipment Making Co ltd
Current assignee: Chengdu Heng'an Alarming Equipment Making Co ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-05-19
Anticipated expiration: 2030-01-22

Abstract

The utility model belongs to the technical field of the sea water desalination, concretely relates to reverse osmosis unit. The utility model discloses a membrane group, the raw water enters into membrane group from the raw water side, fresh water gets into the collector pipe through reverse osmosis process under the pressure effect, remaining dense water is discharged from dense water side, the runner is unobstructed, the barrier film wraps up membrane group, guarantee that the raw water gets into from membrane group tip, avoid untreated raw water, handle remaining dense water and get into through the outer tip of membrane group, the structure is exquisite, the volume has great exchange area when less, the treatment effect has both been guaranteed and the processing speed has been compromise, great spreading value and wide application prospect have.

Description

Reverse osmosis device

Technical Field

The utility model belongs to the technical field of the sea water desalination, concretely relates to reverse osmosis unit.

Background

Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that separates a solvent from a solution using a pressure difference as a driving force, and since the pore diameter of an RO membrane is only 0.0001 μm, which is one million of hair, and cannot be seen by naked eyes, bacteria and viruses are 5000 times as large as that of the RO membrane, only water molecules and a part of mineral ions can pass through (ions pass through an unwrinkled orientation), and other impurities and heavy metals are discharged from one side of a dense water gap. Applying pressure to the feed solution on one side of the membrane, and when the pressure exceeds the osmotic pressure thereof, the solvent will permeate in the opposite direction against the natural permeation direction, so as to obtain a permeated solvent, namely a permeate, on the low pressure side of the membrane; the high pressure side yields a concentrated solution, i.e., a concentrate.

If a reverse osmosis membrane is used to treat seawater, fresh water is obtained on the low pressure side of the membrane and concentrated water is obtained on the high pressure side. In the current technical scheme, the membrane structure of the reverse osmosis device is not reasonably arranged, so that the treatment efficiency is lower and the treatment effect is not good.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art and providing a reverse osmosis device which has more reasonable structure, good seawater treatment effect and high efficiency.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: the utility model provides a reverse osmosis unit, includes the collector pipe, the membrane group that can carry out reverse osmosis is convoluteed in the collector pipe outside, the outside winding barrier film of membrane group, the one end that the membrane group is close to the collector pipe export is former water side, the other end is dense water side, a plurality of water collecting holes are seted up to the collector pipe lateral wall. Raw water enters the membrane group from the raw water side, fresh water enters the water collecting pipe through the reverse osmosis process under the action of pressure, the remaining concentrated water is discharged from the concentrated water side, the flow channel is smooth, the membrane group is wrapped by the isolating membrane, the raw water is ensured to enter from the end part of the membrane group, the raw water which is not treated and the remaining concentrated water which is treated are prevented from entering through the outer end part of the membrane group, and the treatment effect and the treatment aging are ensured.

Furthermore, the membrane group is formed by winding a composite functional layer on the outer side wall of the water collecting pipe for multiple circles. The membrane group is wound to form a compact volume, and simultaneously has a large contact area with the concentrated water, so that the membrane group can rapidly and efficiently treat the raw water.

Further, the composite functional layer sequentially comprises a first reverse osmosis membrane, a fresh water guide net, a second reverse osmosis membrane and a concentrated water guide net from inside to outside; first reverse osmosis membrane and second reverse osmosis membrane are close to the both sides limit of collector pipe end portion, are close to the equal inseparable laminating in end limit of barrier film to constitute a trilateral confined bag shape space, first reverse osmosis membrane and second reverse osmosis membrane are close to the end limit of collector pipe and open, form the opening in bag shape space, the fresh water direction net is pressed from both sides in bag shape space. After winding, the concentrated water guide net is located between the second reverse osmosis membrane of the winding and the first reverse osmosis membrane of the winding on the outer side, so that the concentrated water guide net can enter a bag-shaped space formed by the fresh water guide net and the second reverse osmosis membrane from the inner direction and the outer direction, and the method is rapid and efficient.

Further, be equipped with the sealing washer between membrane group is inboard and the collector pipe, the sealing washer is including being close to the first sealing washer of membrane group raw water side and being close to the second sealing washer of membrane group concentrate side, the opening in bag shape space is located between first sealing washer and the second sealing washer. The first sealing ring and the second sealing ring can separate raw water, fresh water and concentrated water, and the treatment effect is guaranteed.

Further, the shell is established to the peripheral cover of barrier film, set up isolation assembly between shell and the barrier film, isolation assembly divides into former water cavity and dense water cavity with the space between shell and the barrier film. The raw water and the concentrated water are separated by the isolating component and are respectively positioned in the raw water cavity and the concentrated water cavity, so that the treatment effect is ensured.

Furthermore, the isolation assembly comprises an annular isolation block arranged on the outer side of the isolation film, and an isolation ring is arranged on the outer side surface of the isolation block. The sealing performance between the raw water cavity and the concentrated water cavity can be ensured by arranging the isolation ring.

Furthermore, a reinforcing ring is arranged on one side of the isolation block close to the raw water cavity. Set up the reinforcing ring and can resist the high pressure of former water cavity one side, avoid spacing block, spacing ring inefficacy, improve the reliability of isolation component between plateau water cavity and the dense water cavity.

Furthermore, the side of former water cavity is equipped with the inlet tube, the side of dense water cavity is equipped with the drain pipe.

Furthermore, the position of the shell corresponding to the water collecting pipe is provided with a bearing seat, and the bearing seat is used for being connected with a water outlet pipe for conveying fresh water.

The utility model discloses following beneficial effect has:

the utility model discloses a membrane group, the raw water enters into membrane group from the raw water side, fresh water gets into the collector pipe through reverse osmosis process under the pressure effect, remaining dense water is discharged from dense water side, the runner is unobstructed, the barrier film wraps up membrane group, guarantee that the raw water gets into from membrane group tip, avoid untreated raw water, handle remaining dense water and get into through the outer tip of membrane group, the structure is exquisite, the volume has great exchange area when less, the treatment effect has both been guaranteed and the processing speed has been compromise, great spreading value and wide application prospect have.

Drawings

FIG. 1 is a schematic overall sectional view of the present invention;

fig. 2 is a schematic view illustrating the membrane module after the housing is removed.

Detailed Description

With reference to fig. 1-2, the present embodiment shows a reverse osmosis apparatus, which includes a water collecting pipe 1, a membrane group 2 wound outside the water collecting pipe 1 and capable of performing reverse osmosis, an isolation membrane 3 wound outside the membrane group 2, a raw water side at one end of the membrane group 2 close to an outlet of the water collecting pipe 1, a concentrated water side at the other end of the membrane group 2, and a plurality of water collecting holes 11 formed in a side wall of the water collecting pipe 1. It can be understood that raw water enters the membrane group 2 from the raw water side, fresh water enters the water collecting pipe 1 through the reverse osmosis process under the action of pressure, the remaining concentrated water is discharged from the concentrated water side, the flow channel is smooth, the membrane group 2 is wrapped by the isolating membrane 3, the raw water is ensured to enter from the end part of the membrane group 2, the raw water which is not treated and the remaining concentrated water which is treated are prevented from entering through the outer end part of the membrane group 2, and the treatment effect and the treatment aging are ensured.

Further, the membrane group 2 is formed by winding a plurality of turns of composite functional layers on the outer side wall of the water collecting pipe 1. It can be understood that the membrane group 2 is wound to be small in volume and large in contact area with the concentrated water, and can rapidly and efficiently treat the raw water.

Further, the composite functional layer sequentially comprises a first reverse osmosis membrane 23, a fresh water guide net 24, a second reverse osmosis membrane 25 and a concentrated water guide net 26 from inside to outside; the two side edges of the first reverse osmosis membrane 23 and the second reverse osmosis membrane 25 close to the end part of the water collecting pipe 1 and the end edge close to the isolating membrane 3 are tightly attached to form a bag-shaped space with three closed edges, the end edges of the first reverse osmosis membrane 23 and the second reverse osmosis membrane 25 close to the water collecting pipe 1 are opened to form an opening of the bag-shaped space, and the fresh water guide net 24 is clamped in the bag-shaped space. It can be understood that after winding, the thick water guide net 26 is located between the second reverse osmosis membrane 25 of the winding and the first reverse osmosis membrane 23 of the outer winding, so that the thick water guide net 26 can enter the bag-shaped space formed by the fresh water guide net 24 and the second reverse osmosis membrane 25 from the inner direction and the outer direction, and then is rapidly transported to the innermost layer of the membrane group 2 by the fresh water guide net 24 to come out from the opening of the bag-shaped space, and then enters the water collecting pipe 1 to be collected and sent out of the device, thereby being rapid and efficient.

Further, be equipped with the sealing washer between membrane group 2 is innermost and collector pipe 1, the sealing washer including being close to the first sealing washer 21 of 2 former water sides of membrane group and being close to the second sealing washer 22 of 2 dense water sides of membrane group, the opening in bag shape space is located between first sealing washer 21 and the second sealing washer 22. It can be understood that the first sealing ring 21 can effectively prevent raw water from mixing with fresh water between the first sealing ring 21 and the second sealing ring 22 along the outer wall of the water collecting pipe 1, the second sealing ring 22 can effectively prevent concentrated water after treatment from mixing with fresh water between the first sealing ring 21 and the second sealing ring 22 along the outer wall of the water collecting pipe 1, and simultaneously prevent fresh water between the first sealing ring 21 and the second sealing ring 22 from mixing with raw water or concentrated water along the outer wall of the water collecting pipe 1, thereby ensuring reverse osmosis treatment effect.

Further, the shell 4 is established to the peripheral cover of barrier film 3, sets up isolation assembly between shell 4 and the barrier film 3, and isolation assembly divides into former water cavity 7 and dense water cavity 8 with the space between shell 4 and the barrier film 3. Furthermore, the isolation assembly comprises an annular isolation block 5 arranged outside the isolation diaphragm 3, and an isolation ring 51 is arranged on the outer side surface of the isolation block 5. Still further, the spacer 5 is provided with a reinforcing ring 6 at one side close to the raw water cavity 7. It can be understood that the raw water and the concentrated water are separated by the isolating component and are respectively positioned in the raw water cavity 7 and the concentrated water cavity 8, so that the treatment effect is ensured. The isolation ring 51 is arranged to ensure the sealing performance between the raw water cavity 7 and the concentrated water cavity 8. The reinforcing ring 6 is arranged to resist the high pressure on one side of the antigen water cavity 7, so that the failure of the isolation block 5 and the isolation ring 51 is avoided, and the reliability of the isolation assembly between the original water cavity 7 and the concentrated water cavity 8 is improved.

Furthermore, a water inlet pipe 41 is arranged on the side surface of the raw water cavity 7, and a water outlet pipe 42 is arranged on the side surface of the concentrated water cavity 8. Furthermore, the housing 4 is provided with a receiving seat 9 at a position corresponding to the water collecting pipe 1, and the receiving seat 9 is used for being connected with a water outlet pipe for conveying fresh water. It will be appreciated that an inlet pipe 41 is provided for feeding water to be treated, such as seawater, into the raw water chamber 7, a concentrate pipe 42 is provided for discharging the concentrate remaining from the treatment from the concentrate chamber 8, and the socket 9 feeds the fresh water collected by the collector 1 out through the outlet pipe for use by the operator.

It is noted that, herein, relational terms such as first and second, and the like may be 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. 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.

It is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention, and are not intended to indicate or imply that the claimed components or mechanisms must be in a particular orientation, constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be regarded as equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. A reverse osmosis apparatus characterized by: including collector pipe (1), the membrane group (2) that can carry out reverse osmosis are convoluteed in collector pipe (1) outside, the outside winding barrier film (3) of membrane group (2), one end that membrane group (2) are close to collector pipe (1) export is former water side, the other end is the concentrate side, a plurality of water collecting hole (11) are seted up to collector pipe (1) lateral wall.

2. A reverse osmosis apparatus according to claim 1, wherein: the membrane group (2) is formed by winding a composite functional layer on the outer side wall of the water collecting pipe (1) for multiple circles.

3. A reverse osmosis apparatus according to claim 2, wherein: the composite functional layer sequentially comprises a first reverse osmosis membrane (23), a fresh water guide net (24), a second reverse osmosis membrane (25) and a concentrated water guide net (26) from inside to outside; first reverse osmosis membrane (23) and second reverse osmosis membrane (25) are close to the both sides limit of collector pipe (1) tip, are close to the end limit of barrier film (3) and all closely laminate to constitute a trilateral confined bag shape space, first reverse osmosis membrane (23) and second reverse osmosis membrane (25) are close to the end limit of collector pipe (1) and open, form the opening in bag shape space, fresh water guide net (24) are pressed from both sides in bag shape space.

4. A reverse osmosis apparatus according to claim 3, wherein: be equipped with the sealing washer between membrane group (2) innermost and collector pipe (1), the sealing washer is including first sealing washer (21) that are close to membrane group (2) former water side and second sealing washer (22) that are close to membrane group (2) dense water side, the opening in bag shape space is located between first sealing washer (21) and second sealing washer (22).

5. A reverse osmosis apparatus according to claim 1, wherein: casing (4) are established to the peripheral cover of barrier film (3), set up isolation assembly between casing (4) and barrier film (3), isolation assembly is former water cavity (7) and dense water cavity (8) with the space between casing (4) and barrier film (3).

6. A reverse osmosis apparatus according to claim 5, wherein: the isolation assembly comprises an annular isolation block (5) arranged on the outer side of the isolation membrane (3), and an isolation ring (51) is arranged on the outer side surface of the isolation block (5).

7. A reverse osmosis apparatus according to claim 6, wherein: and a reinforcing ring (6) is arranged on one side of the isolation block (5) close to the raw water cavity (7).

8. A reverse osmosis apparatus according to claim 5, wherein: the side of former water cavity (7) is equipped with inlet tube (41), the side of concentrate chamber (8) is equipped with drain pipe (42).

9. A reverse osmosis apparatus according to claim 5, wherein: the position of the shell (4) corresponding to the water collecting pipe (1) is provided with a bearing seat (9), and the bearing seat (9) is used for being connected with a water outlet pipe for conveying fresh water.