CN203123839U - Porous central tube of spiral-wound membrane element - Google Patents
Porous central tube of spiral-wound membrane element Download PDFInfo
- Publication number
- CN203123839U CN203123839U CN 201320110215 CN201320110215U CN203123839U CN 203123839 U CN203123839 U CN 203123839U CN 201320110215 CN201320110215 CN 201320110215 CN 201320110215 U CN201320110215 U CN 201320110215U CN 203123839 U CN203123839 U CN 203123839U
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- central tube
- joint
- porous
- porous central
- hole
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Abstract
The utility model discloses a porous central tube of a spiral-wound membrane element. The tube comprises a central tube body, and two connectors respectively and detachably connected with both ends of the central tube body, wherein one ends of the connectors are opened while the other ends of the connectors are closed, and a vacuumizing hole communicated with an inner hole of one connector is formed in the side wall of the connector. When the tube provided by the utility model is used for winding a membrane unit, vacuum between a feeding runner mesh and a membrane bag is extracted through the vacuumizing hole by means of a vacuumizer, so that a gap between the feeding runner mesh and the membrane bag is reduced to ensure compact winding, and the membrane separating effect is improved.
Description
Technical field
The utility model relates to a kind of antipriming pipe, is specifically related to a kind of porous central tube of rolled film element.
Background technology
In recent years, membrane separation technique as a kind ofly separate efficiently, concentrate, purification and purification means, obtained development very rapidly.
It is to be separating medium with the film that component is had the selective permeation function that film separates, by apply (or existence) one or more motive forces in the film both sides, make the membrane component penetrated preferably film optionally in the raw material, separate thereby reach mixture, and realize product extraction, concentrate, the separation process of purpose such as purifying.Press the shape of membrane component and the structure of assembly and divide, membrane component can be divided into Flat Membrane, tubular membrane, rolled film and hollow-fibre membrane four big classes.The rolled film element is because it is simple in structure, cheap, loading density is high, the material exchange is effective, treating capacity is widely used greatly.
The rolled film element generally by porous central tube, be wound in the film unit on this central tube and protect parts such as structure to constitute outward.Wherein, film unit comprises charging runner net and film bag, and the film bag is to utilize adhesive to be used for preventing charging runner net side feed liquid and to mix through runner net side liquid through liquid runner net and the bonding integral structure that forms of diffusion barrier sealing; Charging runner net is with supply side feed liquid guiding separation membrane surface, by diffusion barrier separating feed runner net side feed liquid; Seeing through liquid runner net will be through the guiding fluid central tube of diffusion barrier; Outer protection structure be generally the technical grade membrane component with glass fibre reinforced plastics casing or health level membrane component with the outer catch net of plastics, be used for the above-mentioned coiling body of parcel, can be the single or multiple lift structure, be used for the mechanical strength of strengthening membrane element, the diaphragm element.
In the prior art, there are following two effects in the porous central tube of rolled film element: (1) is convenient to the coiling of membrane component; (2) after the liquid that sees through diffusion barrier is through liquid runner net guiding porous central tube, flow out from porous central tube.And when membrane component is wound on the porous central tube, easily because of the coiling tightening force not consolidation that causes reeling inadequately, thereby have big gap between charging runner net and the film bag, influence the effect of film separation.
Summary of the invention
The utility model purpose provides a kind of porous central tube of rolled film element, by the improvement of structure, and when film unit is wound on the porous central tube, the coiling consolidation, the gap between charging runner net and the film bag is little, and membrane separating effect is good.
For achieving the above object, the technical solution adopted in the utility model is: a kind of porous central tube of rolled film element, comprise the central tube body, also comprise respectively and detachable two joints that are connected in the two ends of this central tube body, one end of described joint is uncovered, other end sealing, wherein offers the hole that vacuumizes that is communicated with the joint endoporus on the sidewall of a described joint.
By said structure, when the coiling film unit, utilize evacuator that the vacuum between charging runner net and the film bag is extracted, reduce the gap between charging runner net and the film bag, guarantee the coiling consolidation, improve membrane separating effect.
In the technique scheme, the described hole that vacuumizes is connected with evacuator by a union elbow.
In the technique scheme, the centre bore of the opening end of described joint and described central tube body is pegged graft, and is arranged with the O RunddichtringO on the joint.
In the technique scheme, described central tube body is provided with 4 row along its circular hole that axially arranges, and the described circular hole of 4 row is evenly arranged along the circumferencial direction of porous central tube.
In the technique scheme, the blind end end of described joint is provided with centre hole, and the clamping when being convenient to the rolled film element and twining outer catch net is located.
Because technique scheme is used, the advantage that the utility model compared with prior art has is:
1. the utility model is at the two ends of porous central tube difference jointing, and wherein offer the hole that vacuumizes that is communicated with the joint endoporus on the sidewall of a joint, when the coiling film unit, utilize evacuator that the vacuum between charging runner net and the film bag is extracted, reduce the gap between charging runner net and the film bag, guarantee the coiling consolidation, improve membrane separating effect.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one;
Wherein: 1, central tube body; 10, circular hole; 2, joint; 20, vacuumize the hole; 3, joint; 4, O RunddichtringO; 5, union elbow.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: referring to shown in Figure 1, a kind of porous central tube of rolled film element comprises central tube body 1, uncovered, the other end sealing of the end with the detachable joint that is connected 2 in the two ends of this central tube body 1 and joint 3, two described joints respectively.
Wherein, offer on the sidewall of described joint 2 be communicated with the joint endoporus vacuumize hole 20.
The described hole 20 that vacuumizes is connected with evacuator by a union elbow 5.
The opening end of described joint 2 and joint 3 and the centre bore of described central tube body 1 are pegged graft, and are arranged with O RunddichtringO 4 on the joint.
The blind end end of described joint 2 and joint 3 is provided with centre hole.
Described central tube body 1 is provided with 4 row along its circular hole 10 that axially arranges, and the described circular hole 10 of 4 row is evenly arranged along the circumferencial direction of porous central tube.
The utility model is at the two ends of porous central tube difference jointing, and wherein offer the hole that vacuumizes that is communicated with the joint endoporus on the sidewall of a joint, when the coiling film unit, utilize evacuator that the vacuum between charging runner net and the film bag is extracted, reduce the gap between charging runner net and the film bag, guarantee the coiling consolidation, improve membrane separating effect.
The above is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. the porous central tube of a rolled film element, comprise the central tube body, it is characterized in that, also comprise respectively and detachable two joints that are connected in the two ends of this central tube body, one end of described joint is uncovered, other end sealing, wherein offers the hole that vacuumizes that is communicated with the joint endoporus on the sidewall of a described joint.
2. the porous central tube of rolled film element according to claim 1 is characterized in that, the described hole that vacuumizes is connected with evacuator by a union elbow.
3. the porous central tube of rolled film element according to claim 1 and 2 is characterized in that, the centre bore of the opening end of described joint and described central tube body is pegged graft, and is arranged with the O RunddichtringO on the joint.
4. the porous central tube of rolled film element according to claim 1 is characterized in that, described central tube body is provided with 4 row along its circular hole that axially arranges, and the described circular hole of 4 row is evenly arranged along the circumferencial direction of porous central tube.
5. the porous central tube of rolled film element according to claim 1 and 2 is characterized in that, the blind end end of described joint is provided with centre hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110215 CN203123839U (en) | 2013-03-12 | 2013-03-12 | Porous central tube of spiral-wound membrane element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110215 CN203123839U (en) | 2013-03-12 | 2013-03-12 | Porous central tube of spiral-wound membrane element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203123839U true CN203123839U (en) | 2013-08-14 |
Family
ID=48931867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320110215 Expired - Fee Related CN203123839U (en) | 2013-03-12 | 2013-03-12 | Porous central tube of spiral-wound membrane element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203123839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607047A (en) * | 2015-02-13 | 2015-05-13 | 湖南澳维环保科技有限公司 | Roll type reverse osmosis membrane element |
-
2013
- 2013-03-12 CN CN 201320110215 patent/CN203123839U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607047A (en) * | 2015-02-13 | 2015-05-13 | 湖南澳维环保科技有限公司 | Roll type reverse osmosis membrane element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20180312 |