CN211537269U - External pressure type hollow fiber membrane component - Google Patents

Abstract

The utility model discloses an external pressure type hollow fiber membrane subassembly belongs to membrane equipment technical field, an external pressure type hollow fiber membrane subassembly, a serial communication port, include: a sleeve pipe, an end cover can dismantle the connection and in sheathed tube one end, and one end seals, sets up in sheathed tube inside, and is close to the end cover, many hollow fiber bundles, and many hollow fiber bundles all have open end and blind end, and many hollow fiber bundles all are located sheathed tube inside, and many hollow fiber bundle's open end all is fixed in the end seal, and with the end cover intercommunication, a permeate liquid export, the intercommunication sets up on the end cover, and at least one concentrate exports, and the intercommunication sets up on the sleeve pipe. The external pressure type hollow fiber membrane component of the utility model has the advantages that the pollutants are not easy to be accumulated on the fiber bundle, the aeration is even, and the component can be used in the high temperature environment.

Description

External pressure type hollow fiber membrane component

Technical Field

The utility model belongs to the technical field of the membrane equipment, especially, relate to an external pressure type hollow fiber membrane subassembly.

Background

The hollow fiber membrane is a membrane having a self-supporting function and a fibrous shape. The hollow fiber membrane is prepared by processing polysulfone and dimethylacetamide serving as raw materials into fiber filaments with hollow inner cavities, and then dividing the fiber filaments by a high-permeability polymer, and has a selective permeability characteristic. Since water vapor, hydrogen, ammonia, and carbon dioxide permeate faster, and methane, nitrogen, argon, oxygen, and carbon monoxide permeate slower, this allows for a fast permeation to slow permeation separation.

The hollow fiber membrane component is divided into an internal pressure type and an external pressure type, wherein the external pressure type means that stock solution permeates through the hollow fibers from outside to inside along the radial direction through pressure difference to become permeation solution, and trapped substances are collected outside the hollow fibers.

The two ends of the fiber bundle of the existing hollow fiber membrane are fixedly arranged, the anti-pollution capacity of the fiber bundle with the two fixed ends is poor in actual operation, pollutants are easy to accumulate on the fiber bundle and are difficult to discharge, and the cleaning and regeneration effect of the membrane is poor. The aeration air outlet of the existing hollow fiber membrane is arranged at the lower part of the fiber bundle, and the aeration can not be uniform when the aeration amount is large. And the existing hollow fiber membrane component can only be suitable for normal temperature environment, can not be used under high temperature condition, and has narrow applicability.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing an external pressure type hollow fiber membrane component, the pollutant is difficult to pile up on the tow, the aeration is even, and can use under the high temperature environment.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a pair of external pressure type hollow fiber membrane subassembly, a serial communication port, include: a sleeve pipe, an end cover can dismantle the connection and in sheathed tube one end, and one end seals, sets up in sheathed tube inside, and is close to the end cover, many hollow fiber bundles, and many hollow fiber bundles all have open end and blind end, and many hollow fiber bundles all are located sheathed tube inside, and many hollow fiber bundle's open end all is fixed in the end seal, and with the end cover intercommunication, a permeate liquid export, the intercommunication sets up on the end cover, and at least one concentrate exports, and the intercommunication sets up on the sleeve pipe.

Preferably, the hollow fiber bundle is in a linear shape or a U shape.

Preferably, the method further comprises the following steps: one end of the stock solution inlet pipe penetrates through the end cover to be communicated with the outside, and the other end of the stock solution inlet pipe penetrates through the end seal to be communicated with the inner cavity of the sleeve.

Preferably, the method further comprises the following steps: one end of the stock solution inlet pipe is fixedly communicated with the sleeve.

Preferably, the method further comprises the following steps: the aeration pipe is fixed at the middle part of sleeve pipe right side wall, and its left end passes the sleeve pipe and is close to the end seal, and its right-hand member is located the sleeve pipe outside for external aeration equipment, including many hollow fiber bundles surround the aeration pipe, seted up a plurality of gas pockets on the aeration pipe, a plurality of gas pockets all are located sheathed tube inside.

Preferably, the left end of the aeration pipe is closed, and a plurality of air holes are arranged along the circumferential direction of the aeration pipe at equal intervals and are arranged along the axial direction of the aeration pipe at equal intervals.

Preferably, the sleeve is stainless steel.

Preferably, the end seal material is high temperature resistant epoxy.

Preferably, the outer surfaces of the sleeve and end caps are coated with a layer of insulation.

Preferably, the heat insulation layer is a heat insulation paint film or a transparent heat insulation film.

The utility model has the advantages that:

1. through the fixed setting of the one end with hollow fiber bundle on the end seals, the other end is the free end, does not retrain it, and hollow fiber bundle can swing when the operation for the pollutant is difficult for piling up on hollow fiber bundle, the discharge pollutant of being convenient for, and antipollution ability is strong, and the washing regeneration of membrane is respond well.

2. And be equipped with the aeration pipe, its left end passes the sleeve pipe and is close to the end seal, improves the aeration scope, including many hollow fiber bundles surround the aeration pipe for the aeration effect is better, has seted up a plurality of gas pockets on the aeration pipe, and a plurality of gas pockets set up along aeration pipe circumference equidistance interval, and set up along aeration pipe axial equidistance interval, improve the aeration degree of consistency.

3. Through the combination setting of aeration pipe and hollow fiber bundle, can effectively improve hollow fiber bundle's swing through the disturbance of aeration to water, further reduce the attached of pollutant to hollow fiber bundle, improve life.

4. Through the arrangement of the stainless steel sleeve and the high-temperature epoxy resin end seal, the hollow fiber membrane component can adapt to high-temperature conditions.

Drawings

Fig. 1 is a schematic front view structure diagram of a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structural diagram of the first embodiment of the present invention.

Fig. 3 is a schematic sectional structure diagram of a second embodiment of the present invention.

Fig. 4 is a schematic sectional structure diagram of a third embodiment of the present invention.

The labels in the figures are: 1-sleeve, 2-end cover, 3-end seal, 4-hollow fiber bundle, 5-permeate outlet, 6-concentrated solution outlet, 7-stock solution inlet pipe, 8-aeration pipe, 9-air hole and 10-heat insulation layer.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Those not described in detail in this specification are within the skill of the art. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

The first embodiment is as follows:

as shown in fig. 1 to 2, the external pressure type hollow fiber membrane module provided in this embodiment includes: a sleeve 1, an end cap 2 detachably connected to the left end of the sleeve 1, specifically adopting a thread sealing connection mode, an end seal 3 arranged inside the sleeve 1 and close to the end cap 2, a plurality of hollow fiber bundles 4, the plurality of hollow fiber bundles 4 having an open end and a closed end, the plurality of hollow fiber bundles 4 being located inside the sleeve 1, the open ends of the plurality of hollow fiber bundles 4 being fixed inside the end seal 3 and communicated with the end cap 2, a permeate outlet 5 communicated with the bottom of the end cap 2, two concentrate outlets 6 communicated with the bottom of the sleeve 1 and respectively arranged on the left and right, a raw liquid inlet pipe 7, the left end passing through the end cap 2 and communicated with the outside, the right end passing through the end seal 3 and communicated with the inner cavity of the sleeve 1, wherein the hollow fiber bundles 4 are in a linear shape and have an open end and a closed end, specifically, the left end of the hollow fiber bundles 4 is the open end, the right end is a closed end.

Through the left end with hollow fiber bundle 4 fixed set up on end seal 3, the right-hand member is the free end, does not retrain it, and hollow fiber bundle 4 can swing when the operation for the pollutant is difficult for piling up on hollow fiber bundle 4, the discharge pollutant of being convenient for, and antipollution ability is strong, and the washing regeneration of membrane is respond well. The stock solution enters the inner cavity of the sleeve 1 on the right side of the end seal 3 from the left to the right of the stock solution inlet pipe 7, the stock solution permeates into the inner cavity of the hollow fiber bundle 4 to form permeate liquid, the right end seal 3 of the hollow fiber bundle 4 is closed, so that the permeate liquid is finally discharged to the end cover 2 from the open end on the left side and is discharged through the permeate liquid outlet 5, and the concentrated solution is discharged through the concentrated solution outlet 6.

Further, the method also comprises the following steps: aeration pipe 8, fix the middle part at sleeve pipe 1 right side wall, its left end passes sleeve pipe 1 and is close to end seal 3, improve the aeration scope, aeration pipe 8's left end is apart from end seal 3 right-hand member 3cm in this embodiment, its right-hand member is located the sleeve pipe 1 outside, be used for external aeration equipment, including many hollow fiber bundles 4 surround aeration pipe 8, make the aeration effect better, a plurality of gas pockets 9 have been seted up on aeration pipe 8, a plurality of gas pockets 9 all are located sleeve pipe 1's inside, it is concrete, aeration pipe 8's left end seals the setting, a plurality of gas pockets 9 set up along 8 circumference equidistance intervals of aeration pipe, and set up along 8 axial equidistance intervals of aeration pipe, improve the aeration degree of consistency. Meanwhile, the disturbance of the aeration to the water can effectively improve the swing of the hollow fiber bundle 4, further reduce the attachment of pollutants to the hollow fiber bundle and prolong the service life.

Further, sleeve pipe 1 is the stainless steel material, and the end seals 3 materials and is high temperature resistant epoxy, through stainless steel sleeve pipe 1 and the setting of high temperature epoxy end seals 3 for this hollow fiber membrane module can adapt to the high temperature condition.

Further, the outer surfaces of the sleeve 1 and the end cover 2 are coated with a heat insulation layer 10, specifically, the heat insulation layer 10 is a heat insulation paint film or a transparent heat insulation film, and the high temperature resistance is further improved through the arrangement of the heat insulation layer 10.

Example two:

as shown in fig. 3, the present embodiment is different from the first embodiment in that: the change of feed liquor direction, specifically, the fixed intercommunication of one end of stoste inlet tube 7 is on sleeve pipe 1, and stoste enters into the sleeve pipe 1 inner chamber on end seal 3 right side from stoste inlet tube 7 from last to down.

Example three:

as shown in fig. 4, the present embodiment is different from the first embodiment in that: the hollow fiber bundle 4 is in a U shape, is bent into a U shape by one hollow fiber bundle 4, and has two open ends and one closed end, specifically, two open ends of the hollow fiber bundle 4 are both located at the left end, and the right end is the closed end.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. An external pressure type hollow fiber membrane module characterized by comprising:

a sleeve;

the end cover is detachably connected to one end of the sleeve;

an end seal disposed within the sleeve and proximate the end cap;

the hollow fiber bundles are provided with opening ends and closed ends, the hollow fiber bundles are positioned in the sleeve, and the opening ends of the hollow fiber bundles are fixed in the end seals and communicated with the end covers;

a permeate outlet which is communicated with the end cover;

and the at least one concentrated solution outlet is communicated and arranged on the sleeve.

2. External pressure type hollow fiber membrane module according to claim 1,

the hollow fiber bundle is in a linear shape or a U-shape.

3. The external pressure type hollow fiber membrane module according to claim 2, further comprising:

and one end of the stock solution inlet pipe penetrates through the end cover to be communicated with the outside, and the other end of the stock solution inlet pipe penetrates through the end seal to be communicated with the inner cavity of the sleeve.

4. The external pressure type hollow fiber membrane module according to claim 2, further comprising:

and one end of the stock solution inlet pipe is fixedly communicated with the sleeve.

5. External pressure type hollow fiber membrane module according to claim 3 or 4, further comprising:

the aeration pipe is fixed in the middle of the right side wall of the sleeve, the left end of the aeration pipe penetrates through the sleeve and is close to the end seal, and the right end of the aeration pipe is positioned outside the sleeve and is externally connected with aeration equipment;

a plurality of the hollow fiber bundles enclose the aeration pipe;

the aeration pipe is provided with a plurality of air holes which are all positioned inside the sleeve.

6. External pressure type hollow fiber membrane module according to claim 5,

the left end of the aeration pipe is closed;

the plurality of air holes are arranged along the circumferential direction of the aeration pipe at intervals and are arranged along the axial direction of the aeration pipe at intervals.

7. External pressure type hollow fiber membrane module according to claim 1,

the sleeve is made of stainless steel.

8. External pressure type hollow fiber membrane module according to claim 1,

the end seal is made of high-temperature-resistant epoxy resin.

9. External pressure type hollow fiber membrane module according to claim 1,

the outer surfaces of the sleeve and the end cover are coated with a thermal insulation layer.

10. External pressure type hollow fiber membrane module according to claim 9,

the heat insulation layer is a heat insulation paint film or a transparent heat insulation film.

Images