CN109399762A

CN109399762A - A kind of household reverse osmosis film and putamina component without raw water sealing ring

Info

Publication number: CN109399762A
Application number: CN201811546426.1A
Authority: CN
Inventors: 王美; 李海玲; 许家旺
Original assignee: Nine Chapters Membrane (beijing) Technology Co Ltd
Current assignee: Nine Chapters Membrane (beijing) Technology Co Ltd
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2019-03-01

Abstract

The invention discloses a household reverse osmosis membrane and a membrane shell assembly without a raw water sealing ring. The reverse osmosis membrane includes a reverse osmosis membrane and a membrane shell assembly. The reverse osmosis membrane includes a central pipe and a membrane body; The outer diameter of the membrane is slightly smaller than the inner diameter of the membrane shell cylinder, and a pressure ring is also arranged in the membrane shell cylinder. The outer diameter of the pressure ring is equal to the inner diameter of the membrane shell cylinder; the outer and inner ends of the pressure ring are respectively connected with the membrane shell cover. The inner surface and the head end face of the membrane body are in contact and pressed tightly, and when the pressing ring is pressed, the inner end of the pressing ring can seal the gap between the membrane body and the membrane shell cylinder. The invention adopts the pressure ring to block the gap between the membrane body and the membrane shell of the reverse osmosis membrane, so that the raw water entering the reverse osmosis membrane shell enters the reverse osmosis membrane from the raw water flow channel of the reverse osmosis membrane, so as to achieve the purpose of sealing the raw water; The existing raw water sealing ring and the tape for fixing the raw water sealing ring on the membrane body are omitted, saving materials and man-hours, and at the same time increasing the effective membrane area and increasing the water yield of a single membrane.

Description

A kind of household reverse osmosis film and putamina component without raw water sealing ring

Technical field

The invention belongs to reverse-osmosis membrane element technical fields, and in particular to a kind of household reverse osmosis without raw water sealing ring Film and putamina component.

Background technique

Formulating on position finally, raw water can be sealed to snare in membrane body for household reverse osmosis film production process, then uses glue Raw water sealing ring is fixed on membrane body by band, and after these job dones, reverse osmosis membrane, which can be attached in putamina, carries out performance inspection It tests or normal use.Referring to Fig.1,2, the effect of raw water sealing ring be prevent raw water by reverse osmosis membrane body and putamina cylinder it Between gap, so that raw water is all entered reverse osmosis membrane via reverse osmosis membrane raw water runner, to be produced under the effect of the pressure Water, but since the presence of raw water sealing ring thus can so that reverse osmosis membrane membrane body diameter can only be smaller than putamina cylinder internal diameter Space in a part of cylinder is wasted, meanwhile, assembly raw water sealing ring can also expend a part of working hour, the reverse osmosis after assembly completion Permeable membrane can show a thick thin state, be unfavorable for storage turnover.

Summary of the invention

The present invention in view of the deficiencies of the prior art, provide a kind of household reverse osmosis film without raw water sealing ring and Putamina component not only saves material and working hour, while the space utilization of saving being got up, and increases effective membrane area, improves single branch The water yield of reverse osmosis membrane.

Technical scheme is as follows:

A kind of household reverse osmosis film and putamina component without raw water sealing ring, including reverse osmosis membrane and putamina component, it is described anti- Permeable membrane includes central tube and membrane body；The putamina component includes putamina lid and putamina cylinder；Institute is run through in the membrane body center It is assemblied in the putamina cylinder after stating central tube, the head end of the putamina cylinder is flexibly connected the putamina lid, the film Cap is equipped with original water inlet, and the end of the putamina cylinder, which is equipped with, produces water out and concentrated water outlet；The membrane body outer diameter omits Less than the putamina cylinder internal diameter, pressure ring is additionally provided in the putamina cylinder, the outer diameter of the pressure ring is equal to the putamina cylinder Internal diameter；Outer, the interior both ends of the pressure ring are in contact and compress with the putamina cover inner surface, membrane body head end face respectively, And when the pressure ring compresses, the inner end of the pressure ring can be by the gap plugging between the membrane body and putamina cylinder.

It is further:

The end of the putamina cylinder is equipped with hemispherical head, and the diameter of the hemispherical head is equal to the putamina cylinder main body Diameter, and the spherical surface inner wall of the end of the membrane body and the hemispherical head constitutes limit cooperation.

The head end of the putamina cylinder is connect by being threadedly engaged with the putamina lid.

The preferred following two form of pressure ring in above-mentioned technical proposal:

The first, the main body of the pressure ring is the hollow cylinder of both ends open, and the outer diameter of cylinder and the putamina cylinder internal diameter Identical, the barrel end of the pressure ring close to membrane body side is equipped with the interior edge extended inwardly；It is described when the pressure ring compresses It interior edge can be by the gap plugging between the membrane body and putamina cylinder.

Above-mentioned form can be further preferred:

The wall thickness 1-3mm of the pressure ring hollow cylinder, close to membrane body side barrel end containing the width on interior edge be 3-5mm.

It is circumferentially spaced on the wall of the pressure ring hollow cylinder to have multiple rectangular openings.

Second, the pressure ring includes the hollow cylinder of outer ring and both ends open, is provided on the hollow cylinder multiple Through slot, the inner end outer surface of the hollow cylinder is circumferentially spaced to be connected with more ribs to external radiation, the rib Outer end is connect with the inner surface of the outer ring, and the outer diameter of the outer ring is identical as the putamina cylinder internal diameter；The pressure ring Hollow cylinder be sleeved on the head end of the central tube, the medial surface of the outer end of the hollow cylinder, outer ring and rib respectively with The putamina cover inner surface, membrane body head end face are in contact and compress, and when the pressure ring compress when, the outer ring it is interior It side can be by the gap plugging between the membrane body and putamina cylinder.

Above-mentioned form can be further preferred:

The width of the outer ring is 2-4mm.

The through slot is to extend the rectangular channel being provided with from the outer end of hollow cylinder to inner end.

The rectangular channel is uniformly distributed four.

The present invention is blocked the gap between the membrane body and putamina of reverse osmosis membrane using pressure ring, makes the original into pressure vessel for reverse osmosis Water enters reverse osmosis membrane from reverse osmosis membrane raw water runner, to achieve the purpose that raw water seals；Simultaneously because by existing raw water Sealing ring, and raw water sealing ring is fixed on the adhesive tape on membrane body and is saved, material and working hour are saved, while increasing effective film surface Product increases the water yield of single branch film.

Detailed description of the invention

Fig. 1 is the household reverse osmosis film schematic diagram of existing assembly raw water sealing ring；

Fig. 2 is the schematic diagram when household reverse osmosis film of existing assembly raw water sealing ring is attached in putamina；

Fig. 3 is the household reverse osmosis film schematic diagram of the present invention without raw water sealing ring；

Fig. 4 is the household reverse osmosis film of the present invention for installing the first form pressure ring and putamina assembling schematic diagram；

Fig. 5 is the partial enlargement diagram of Fig. 4；

Fig. 6 is the household reverse osmosis film and putamina assembling schematic diagram of second of form pressure ring of installation of the present invention；

Fig. 7 is the partial enlargement diagram of Fig. 6；

Fig. 8 is the perspective view of the first form pressure ring；

Fig. 9 is the perspective view of second of form pressure ring；

In figure: 1, central tube, 2, raw water sealing ring, 3, membrane body, 4, O-ring seals, 5, putamina lid, 6, putamina cylinder, 7, original Water inlet, 8, production water out, 9, concentrated water outlet, the 10, first pressure ring, the 101, first hollow cylinder, 102, interior edge, 103, rectangle Hole, the 11, second pressure ring, 111, outer ring, the 112, second hollow cylinder, 113, rib, 114, rectangular channel.

Specific embodiment

Below in conjunction with specific specific embodiment, the present invention is described further, but not as to limit of the invention It is fixed.

Embodiment 1

Referring to Fig. 3,4,5 and 8, a kind of household reverse osmosis film and putamina component without raw water sealing ring, including reverse osmosis membrane With putamina component, reverse osmosis membrane includes central tube 1 and membrane body 3；Putamina component includes putamina lid 5 and putamina cylinder 6；Membrane body 3 Center is assemblied in putamina cylinder 6 after central tube 1, and the head end of putamina cylinder 6 connects membrane cover 5 by being threadedly engaged, Putamina lid 5 is equipped with original water inlet 7, and the end of putamina cylinder 6, which is equipped with, produces water out 8 and concentrated water outlet 9；3 outer diameter of membrane body omits Less than 6 internal diameter of putamina cylinder (being easily installed), the first pressure ring 10 is additionally provided in putamina cylinder.The end of putamina cylinder 6 is equipped with half Dome head, the diameter of hemispherical head are equal to the diameter of 6 main body of putamina cylinder, and the end of membrane body 3 and hemispherical head Spherical surface inner wall constitutes limit cooperation.

The main body of first pressure ring 10 be both ends open hollow cylinder i.e. the first hollow cylinder 101, and the outer diameter of cylinder with 6 internal diameter of putamina cylinder is identical, the first pressure ring 10 close to 3 side of membrane body barrel end be equipped with inwardly extend in along 102； The wall thickness 1-3mm of first hollow cylinder 101, width of the barrel end containing interior edge close to 3 side of membrane body are 3-5mm；First pressure Outer, the interior both ends of ring 10 are in contact and compress with 5 inner surface of putamina lid, 3 head end face of membrane body respectively；When the first pressure ring 10 compresses When, it is interior can be by the gap plugging between membrane body 3 and putamina cylinder 6 along 102.It is circumferentially square on the wall of first hollow cylinder 101 Multiple rectangular openings 103 are provided with to interval, the effect of rectangular opening is for pressure ring loss of weight, reduction production cost.

When assembly, reverse osmosis membrane is first put into putamina, the first pressure ring 10 is then put into reverse osmosis membrane top, by membrane cover Son 5 is screwed with putamina cylinder 6, and during screwing, the first pressure ring 10 will compress reverse osmosis membrane in cylinder, O-shaped sealing Circle 4 separates concentrated water and production water, and reverse osmosis membrane works normally.No problem is sealed, salt rejection rate is normal, and water yield increases by 30%.First Pressure ring 10 is reusable.

Using the putamina of same volume, mounted inside membrane component keeps the same service condition, traditional membrane component and Ben Fa Bright membrane component data comparison is as follows:

Membrane component	Pressure/psi	Raw water μ S/cm	Salt rejection rate	Water yield GPD	The rate of recovery
						Traditional membrane component	60	503	97.5%	75	35%
Inventive film element	60	505	97.6%	95	35%

Embodiment 2

Reference Fig. 3,6,7 and 9, a kind of household reverse osmosis film and putamina component without raw water sealing ring, structure and implementation Example 1 is essentially identical, and difference is only in that the pressure ring used is different, that is, uses the second pressure ring 11.

Second pressure ring 11 includes the second hollow cylinder 112 of outer ring 111 and both ends open, on the second hollow cylinder 112 Extend from outer end to inner end and open there are four rectangular channel 114, rectangular channel 114 enters the channel of putamina as raw water；Second hollow The inner end outer surface of body 112 is circumferentially spaced to be connected with more ribs 113 to external radiation, the outer end of rib 113 with The inner surface of outer ring 111 connects, i.e., the plane for having fan-shaped hole is constituted close to the one side of reverse osmosis membrane, the sector hole is as former Water enters the channel of reverse osmosis membrane；The outer diameter of outer ring 111 is identical as 6 internal diameter of putamina cylinder, and the width of outer ring is 2-4mm；Second Hollow cylinder 112 is sleeved on the head end 1 of central tube, the medial surface of the outer end of the second hollow cylinder 112, outer ring 111 and rib 113 It is in contact and compresses with 5 inner surface of putamina lid, 3 head end face of membrane body respectively, and when the second pressure ring 11 compresses, outer ring 111 Medial surface can be by the gap plugging between membrane body 3 and putamina cylinder 6.

When assembly, reverse osmosis membrane is first put into putamina, the second pressure ring 11 is then put into reverse osmosis membrane top, by membrane cover Son 5 is screwed with putamina cylinder 6, and during screwing, the second pressure ring 11 will compress reverse osmosis membrane in cylinder, O-shaped sealing Circle 4 separates concentrated water and production water, and reverse osmosis membrane works normally.No problem is sealed, salt rejection rate is normal, and water yield increases by 30%.Second Pressure ring 11 is reusable.

Membrane component	Pressure/psi	Raw water μ S/cm	Salt rejection rate	Water yield GPD	The rate of recovery
						Traditional membrane component	60	502	97.7%	78	32%
Inventive film element	60	500	97.7%	99	33%

It will be appreciated by those skilled in the art that the above citing is only several exemplary embodiments of the invention, but it is not limited to The embodiment stated, without departing from or without departing from the scope of the present invention, technical solution of the present invention and its implementation There are many modification, improvement or equivalent variations, these should all fall within the scope of protection of the present invention mode.

Claims

1. a kind of household reverse osmosis membrane and membrane shell assembly without raw water sealing ring, comprising reverse osmosis membrane and membrane shell assembly, described reverse osmosis membrane comprises central pipe and membrane body; Described membrane shell assembly comprises membrane shell cover and membrane shell cylinder; the center of the membrane body penetrates the central tube and is assembled in the membrane shell cylinder, the head end of the membrane shell cylinder is movably connected to the membrane shell cover, and the membrane shell cover is provided with raw water Inlet, the end of the membrane shell cylinder is provided with a water product outlet and a concentrated water outlet. It is characterized in that: the outer diameter of the membrane is slightly smaller than the inner diameter of the membrane shell cylinder, and a pressure ring is also arranged in the membrane shell cylinder. , the outer diameter of the pressure ring is equal to the inner diameter of the membrane shell cylinder; the outer and inner ends of the pressure ring are respectively in contact with the inner surface of the membrane shell cover and the head end face of the membrane body and are pressed tightly, and When the pressing ring is compressed, the inner end of the pressing ring can seal the gap between the membrane body and the membrane shell cylinder.

2. The household reverse osmosis membrane and membrane shell without a raw water sealing ring according to claim 1, wherein the main body of the pressure ring is a hollow cylinder with two ends open, and the outer diameter of the cylinder is the same as the described The inner diameter of the membrane shell cylinder is the same, and the end of the cylinder body on the side of the pressure ring close to the membrane body is provided with an inner edge extending inward; when the pressure ring is compressed, the inner edge can press the membrane body and the membrane body. The gap between the membrane casings is blocked.

3. The household reverse osmosis membrane and membrane shell without raw water sealing ring according to claim 2, characterized in that, the wall thickness of the hollow cylinder body of the pressure ring is 1-3mm, and the end of the cylinder body on one side of the membrane body is close to The width including the inner edge is 3-5mm.

4 . The household reverse osmosis membrane and membrane shell without a raw water sealing ring according to claim 2 or 3 , wherein a plurality of rectangular holes are spaced apart along the circumferential direction on the wall of the hollow cylinder of the pressure ring. 5 .

5. The household reverse osmosis membrane and membrane shell without a raw water sealing ring according to claim 1, wherein the pressure ring comprises an outer ring and a hollow cylinder with openings at both ends, and the hollow cylinder is provided with A plurality of through grooves, the inner end outer surface of the hollow cylinder body is connected with a plurality of ribs radially outwards along the circumferential direction, the outer ends of the ribs are all connected with the inner surface of the outer ring, the The outer diameter of the outer ring is the same as the inner diameter of the membrane shell cylinder; the hollow cylinder of the pressing ring is sleeved on the head end of the central tube, the outer end of the hollow cylinder, the outer ring and the inner side of the ribs Contact with the inner surface of the membrane shell cover and the head end face of the membrane body and press them, and when the pressing ring is pressed, the inner side of the outer ring can press the membrane body and the membrane shell cylinder body. The gaps between are blocked.

6 . The household reverse osmosis membrane and membrane shell without a raw water sealing ring according to claim 5 , wherein the width of the outer ring is 2-4 mm. 7 .

7 . The household reverse osmosis membrane and membrane shell without a raw water sealing ring according to claim 5 or 6 , wherein the through groove is a rectangular groove extending from the outer end to the inner end of the hollow cylinder. 8 .

8 . The household reverse osmosis membrane and membrane shell without a raw water sealing ring according to claim 5 or 6 , wherein the rectangular grooves are four evenly distributed. 9 .

9. The household reverse osmosis membrane and membrane shell without a raw water sealing ring according to any one of claims 1, 2, 5 and 6, wherein the end of the membrane shell cylinder is provided with a hemispherical head, The diameter of the hemispherical head is equal to the diameter of the main body of the membrane shell, and the end of the membrane and the spherical inner wall of the hemispherical head form a limit fit.

10. The household reverse osmosis membrane and membrane shell without a raw water sealing ring according to any one of claims 1, 2, 5 and 6, wherein the head end of the membrane shell cylinder is fitted with the Membrane housing cover connection.