Hollow fibre membrane module, manufacturing method therefor, header apparatus for hollow fibre membrane module and hollow fibre membrane restraining apparatus
A hollow fiber membrane restraining apparatus comprising: first and second horizontal wall parts having slits therethrough, wherein the inner walls face one another; and two vertical wall parts erected facing both end parts of the first horizontal wall parts in a horizontal axis direction, wherein a mat stacking part is formed and stacked on the first horizontal wall part such that end parts of mats on which hollow fiber membranes are arranged in a row can be aligned, and the second horizontal wall part is locked onto the vertical wall parts by pushing and restraining the mat stacking part; a header apparatus comprising the same; a hollow fiber membrane module; and a method for manufacturing a hollow fiber membrane module are provided.
1. A hollow fiber membrane module, comprising:
a hollow fiber membrane mat laminate;
a header providing a water collection channel to which a distal end of the mat laminate is exposed and providing an insertion space into which one end of the mat laminate is inserted;
a hollow fiber membrane binding unit pressing and binding the one end of the mat laminate and inserted into and coupled to the insertion space; and
a potting layer adhesively holding the one end of the mat laminate to seal the water collection channel,
wherein the hollow fiber membrane binding unit comprises:
a first longitudinal wall portion and a second longitudinal wall portion each having a through-slit, inner walls of the first and second longitudinal wall portions facing each other to press and bind the one end of the mat laminate; and
transverse wall portions connecting both ends of the first longitudinal wall portion to both ends of the second longitudinal wall portion, respectively.
2. The hollow fiber membrane module according to claim 1 , wherein the potting layer passes through the through-slits and adheres to an inner wall of the header.
3. The hollow fiber membrane module according to claim 1 , wherein the mat laminate comprises mats in which hollow fiber membranes are arranged side by side; and the hollow fiber membrane module further comprises a first projecting post which protrudes from an inner wall of the first longitudinal wall portion and serves as a reference with respect to which one end of the mat is aligned.
4. The hollow fiber membrane module according to claim 3 , wherein the first projecting post comprises a plurality of first projecting posts protruding from the inner wall of the first longitudinal wall portion and arranged in a longitudinal axis direction of the first longitudinal wall portion.
5. The hollow fiber membrane module according to claim 4 , wherein the plurality of first projecting posts protrude to be coupled at ends thereof to an inner wall of the second longitudinal wall portion.
6. The hollow fiber membrane module according to claim 3 , wherein the mat further comprises a first holding band adhesively holding a side portion of one end of the hollow fiber membrane, and the first projecting post supports an edge of the first holding band.
7. The hollow fiber membrane module according to claim 3 , further comprising:
a second projecting post spaced apart from the first projecting post and protruding from the inner wall of the first longitudinal wall portion to pass between the hollow fiber membranes of the mat.
8. The hollow fiber membrane module according to claim 7 , wherein the second projecting post protrudes to be coupled at an end thereof to an inner wall of the second longitudinal wall portion.
9. The hollow fiber membrane module according to claim 7 , wherein the mat further comprises a first holding band adhesively holding a side portion of one end of the hollow fiber membrane and a second holding band spaced apart from the first holding band;
the first projecting post supports an edge of the first holding band; and
the second projecting post protrudes between the hollow fiber membranes to support a portion of the mat between the first holding band and the second holding band.
10. The hollow fiber membrane module according to claim 1 , further comprising:
an upper mat holding portion protruding inward from an entrance side edge of each of the first and second longitudinal wall portions, at which the hollow fiber membranes of the mat laminate extend outward,
wherein the upper mat holding portion presses and holds the mat laminate.
11. The hollow fiber membrane module according to claim 10 , wherein the upper mat holding portion comprises a plurality of protrusions protruding inward from an edge of each of the first and second longitudinal wall portions.
12. The hollow fiber membrane module according to claim 1 , further comprising:
a lower mat holding portion protruding inward from an open bottom side edge of each of the first and second longitudinal wall portions adjacent to the one end of the mat laminate,
wherein the lower mat holding portion presses and holds the mat laminate.
13. The hollow fiber membrane module according to claim 1 , wherein the lower mat holding portion comprises a projecting bar extending in a longitudinal axis direction of the first and second longitudinal wall portions.
14. The hollow fiber membrane module according to claim 1 , wherein the second longitudinal wall portion further comprises a coupling slot into which an edge of the transverse wall portion is inserted to be coupled thereto.
15. The hollow fiber membrane module according to claim 1 , wherein the header comprises:
a first housing section providing the water collection channel; and
a second housing section connected to the first housing section and providing an insertion space into which the first and second longitudinal wall portions are inserted.
16. The hollow fiber membrane module according to claim 15 , wherein the first and second longitudinal wall portions are spaced apart from an inner wall of the second housing section.
17. The hollow fiber membrane module according to claim 15 , further comprising:
an end coupling portion for coupling to the second housing section on an outer wall of each of the transverse wall portions.
18. The hollow fiber membrane module according to claim 15 , further comprising:
a sealing portion protruding outwardly of an outer wall of each of the first and second longitudinal wall portions from an open bottom side edge of each of the first and second longitudinal wall portions adjacent to the one end of the mat laminate,
wherein the sealing portion is pressed against the inner wall of the second housing section at an end thereof to seal a lower end of a space between the inner wall of the second housing section and each of the first and second longitudinal wall portions.
19. The hollow fiber membrane module according to claim 18 , further comprising:
a longitudinal coupling bar placed under the sealing portion and inserted into a longitudinal coupling groove of the second housing section.
20. The hollow fiber membrane module according to claim 15 , further comprising:
an intermediate coupling portion placed at an open bottom side edge of each of the first and second longitudinal wall portions adjacent to the one end of the mat laminate and coupled to a transverse coupling groove placed inside the second housing section.