Source: https://patents.google.com/patent/JP2003135935A/en
Timestamp: 2020-03-29 19:22:24
Document Index: 100377620

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JP2003135935A - Method for manufacturing hollow fiber membrane module - Google Patents
JP2003135935A
JP2003135935A JP2001338152A JP2001338152A JP2003135935A JP 2003135935 A JP2003135935 A JP 2003135935A JP 2001338152 A JP2001338152 A JP 2001338152A JP 2001338152 A JP2001338152 A JP 2001338152A JP 2003135935 A JP2003135935 A JP 2003135935A
JP2001338152A
JP3908939B2 (en
2001-11-02 Application filed by Mitsubishi Rayon Co Ltd, 三菱レイヨン株式会社 filed Critical Mitsubishi Rayon Co Ltd
2001-11-02 Priority to JP2001338152A priority Critical patent/JP3908939B2/en
2003-05-13 Publication of JP2003135935A publication Critical patent/JP2003135935A/en
2007-04-25 Publication of JP3908939B2 publication Critical patent/JP3908939B2/en
PROBLEM TO BE SOLVED: To provide a method for manufacturing a hollow fiber membrane module, by which a stable potting part can be formed so that a potting resin does not clog the opening of the end face 2 of a hollow fiber membrane 3 but infiltrate into the space among the membranes 3 satisfactorily regardless of the density of the membrane 3 to be used while dispensing with a step to cut the fixed tip part of the membrane 3 after the potting part is formed. SOLUTION: This method for manufacturing the hollow fiber membrane module comprises two steps to form the potting part consisting of two parts 11 and 12, namely, a step to form a potting part 11 by a first injection and filling of the potting resin after the tip part of the membrane 3 having the opening on the end face 2 is inserted in a housing 1 and a step to form another potting part 12 by a second injection and filling of the potting resin.
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitable for liquid filtration and the like.
About the manufacturing method of the hollow fiber membrane module which can be used appropriately
The [0002] Hollow fiber membrane modules are used for aseptic water and beverages.
A wide range of water, high-purity water production, air purification, etc.
In recent years, these microfiltration applications
In addition to secondary treatment, tertiary treatment and purification at sewage treatment plants
Solid-liquid separation in chemical tanks, SS components in industrial wastewater (suspensions
Quality) for solid-liquid separation, etc.
Application is also being made. [0003] It is preferably used for filtering the highly polluted water.
As a hollow fiber membrane module to be used, for example, Japanese Patent Laid-Open No. 5-2
No. 61253, JP-A-6-342, JP-A-6
As shown in No.-340 gazette, etc.
Hollow fiber membrane module comprising a cylindrical body having a substantially rectangular cross section with a hollow portion
The end of the hollow fiber membrane in the fiber axis direction in the joule housing
After receiving the end part, the end part is filled with potting resin.
After sealing and fixing, cut the fixed end of this hollow fiber membrane
To open the end surface of the hollow fiber membrane in the fiber axis direction.
A hollow fiber membrane module. This hollow fiber membrane module is potting
The end of the hollow fiber membrane is sealed to the housing with resin and fixed.
After fixing, the fixed end of the hollow fiber membrane is cut.
Because the end face is opened, the hollow fiber membrane
Large diameter housing for module
You have to use it, and it just adds to the cost
The fixing strength of the hollow fiber membrane decreases with the cutting of the fixed end.
It also has the disadvantage of being. The hollow fiber membrane module is made up of potty.
Stabilizes the hollow fiber membrane when injecting resin into the resin injection part
May require a jig to hold
Therefore, the operation for that is complicated. Furthermore, this hollow fiber membrane module has a large diameter.
Kinona hollow fiber membrane module housing is used
For this purpose, a plurality of the hollow fiber membrane modules are joined together.
When a hollow fiber membrane module unit is used, a single hollow fiber membrane module is used.
The installation space for the joule increases, and the hollow fiber membrane module
Number of hollow fiber membrane modules that can be installed in the module unit
There is also a drawback that is limited. Japanese Laid-Open Patent Publication No. 10-57775 discloses the above-mentioned
As a hollow fiber membrane module that solves this problem,
Hollow fiber membrane module using hollow fiber membrane module housing
Is described. JP 2000-84373 A
Can be installed in the hollow fiber membrane module unit.
Hollow that can increase the number of hollow fiber membrane modules
As a thread membrane module, a hollow fiber membrane module having a substantially U-shaped cross section.
A hollow fiber membrane module using a housing for
It is. The above-mentioned JP-A-10-57775
Information and the hollow shown in JP 2000-84373 A
Yarn membrane module is a hollow fiber membrane module housing
An end face in the fiber axis direction is opened in the provided slit.
Insert the end of the hollow fiber membrane to open the open end surface of the hollow fiber membrane
After being positioned in the water collection hollow in the housing,
Potting on the resin injection part on both sides partitioned by a hollow fiber membrane
By injecting, filling and solidifying the resin
How to produce this hollow fiber membrane module
In the method, the end of the hollow fiber membrane is made with potting resin.
Cutting the fixed end after sealing and fixing the end to the housing
There is no need to provide a process, which allows a small diameter
Jing can be used. However, the hollow fiber membrane module by the above process
In the Joule manufacturing method, the resin injection part is injected and filled.
If the potting resin to be filled has a low viscosity,
Depending on the density of the inserted hollow fiber membrane,
The end of the hollow fiber membrane is caused by resin dripping that covers the hollow fiber membrane.
Since the opening of the surface is blocked, the hollow with reduced water permeability
The problem of becoming a thread membrane module arises. Meanwhile, resin
The viscosity of the potting resin to be injected and filled in the injection part is high.
And the potting resin does not sufficiently wrap around the hollow fiber membrane
Because of this, an internal gap is formed in the potting part.
The question of becoming a hollow fiber membrane module that causes leaks
There is a title. The potting resin is injected and filled before
Membrane module manufacturing method in two stages, the first and second stages
Although a method has been proposed, potting resin injection and filling
Purpose of the conventional potting method in which the process is performed in two steps
Protects the membrane and resin interface, improves the cutability of the fixed end,
Prevention of peeling between the housing and the membrane, etc.
Potting resin dripping or potting resin is hollow
To solve problems such as insufficient wrapping between yarn membranes
It is not a thing. In addition, potting resin is injected and filled in two stages.
Is one of the above purposes for one of the resins when going upstairs?
For example, Japanese Patent Publication No. 4-10374 discloses a hardness of 65 or less.
Resin with relatively low hardness, as listed
The pot formed by such potting resin
The cutting part is a cylindrical hollow fiber membrane module with a generally rectangular cross section.
Insufficient pressure resistance when using a module housing
May be. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention.
The end of the hollow fiber membrane by potting resin
Provide a cutting process for the fixed end after sealing and fixing to the ging
And the hollow fiber membrane is made of potting resin.
When fixing to the hollow fiber membrane module housing
Regardless of the density of the hollow fiber membrane used, the end of the hollow fiber membrane
Without causing resin dripping to close the opening of the surface,
At the same time, the potting resin sufficiently rotates between the hollow fiber membranes.
Potting with internal voids caused by not
No potting resin is formed.
Accurately inject and fill the resin injection part in good condition, quality
Of hollow fiber membrane modules with high potting parts
It is to provide a manufacturing method. The above-mentioned problems are described below.
Manufacturing method of hollow fiber membrane module of the present invention by the configuration
Can be solved by. That is, in the present invention
The manufacturing method of the hollow fiber membrane module is at least in the fiber axis direction.
The other end of the hollow fiber membrane with an open end is hollow
Resin injection after inserting into the housing for thread membrane module
By injecting and filling potting resin into the part,
Maintained the open state of the end surface of the hollow fiber membrane in the fiber axis direction
The hollow fiber membrane is then left in place by potting resin.
Of hollow fiber membrane module fixed to the module housing
In the manufacturing method, potting resin in the resin injection portion
The process of injecting and filling the first potting resin
Hollow fiber membrane for hollow fiber membrane module by injecting and filling
Temporarily fixing the housing and the second potting
The hollow fiber membrane module is formed by injecting and filling the resin.
It is also performed in two stages with the process of fixing to the tool housing
It is. The hollow fiber membrane module of the present invention having the above structure
The first potting resin
The viscosity of the potting resin injected by filling and filling
3000 to 10000 mPa · s, the second time
Potty to be injected by injecting and filling the resin
The viscosity of the resin is 500 to 3000 mPa · s.
In addition, the second potting resin injection and filling
Therefore, the viscosity of the potting resin to be injected is
The viscosity is preferably lower than the viscosity of the resin. Furthermore, the hollow fiber membrane module of the present invention having the above-described structure is used.
In the Joule manufacturing method, the first potting
The pouring of the resin into the resin injection part
Potting tree of 5-50% of the total volume of the potting resin
It is preferable to inject fat. Also, the hollow fiber membrane module of the present invention having the above-described structure is provided.
The second potting in the manufacturing method
Of potting resin to be injected by resin injection and filling
The hardness after solidification is JIS A hardness 60 or more
preferable. BEST MODE FOR CARRYING OUT THE INVENTION Production of the hollow fiber membrane module of the present invention
The manufacturing method is hollow fiber in the hollow fiber membrane module housing.
After inserting the end of the membrane, potting tree
Potting part is formed by filling and filling with fat
Thus, the hollow fiber membrane is used for a hollow fiber membrane module.
It is fixed to the housing, and the resin injection part
The process of injecting and filling potting resin
Hollow fiber membrane is hollowed by filling and filling potting resin
Temporarily fixing to the housing for the membrane module;
Hollow fiber membrane by filling and filling potting resin
Fixing to the housing for the hollow fiber membrane module
This is done in two stages. FIG. 1 shows a hollow fiber membrane module of the present invention.
Part of the hollow fiber membrane module obtained by the manufacturing method of
FIG. 2 is a cross-sectional end view showing a part of an example.
1] Part of the hollow fiber membrane module shown in the manufacturing process
FIG. 1 is a perspective view showing a minute, hollow fiber membrane module of the present invention
In the first step of the manufacturing method of [Fig. 1] and [Fig.
2], or a cylindrical body having a release portion along the length direction.
In the hollow fiber membrane module housing 1, the housing
The end surface 2 is opened from the release portion of the jing 1.
The end part of the hollow fiber membrane bundle 4 by the hollow fiber membrane 3 is inserted. The hollow fiber membrane module housing 1
Has a substantially U-shaped cross section along the length direction
It consists of a horizontally long cylindrical body having a release part, and its
On the inner wall surface, for collecting water that runs in the length direction of the tubular body
The protruding portion 6 for forming the hollow portion 5 is a hollow for collecting water.
Provided with a slit 7 opening along the portion 5.
It is made. Then, the water collecting hollow portion 5 is formed.
For the upper surface of the protruding portion 6 and the inner peripheral wall surface of the housing 1
A recess formed from the slit 7 and its end
The hollow fiber membrane bundle 4 in which the portion is inserted and the inner periphery of the housing 1
The recess between the wall surface is the potting resin injection part 8
The upper part of the wall portion having a substantially U-shaped cross section is
It spreads outward in the length direction of uzing 1,
The dam portion 9 is parallel to the lit 7. The hollow fiber membrane module housing 1
Among a large number of slits 7 whose end face 2 is opened
Inserting the end of the hollow fiber membrane bundle 4 by the hollow fiber membrane 3,
The end portion of the end portion of the hollow fiber membrane bundle 4, that is, the end surface of the hollow fiber membrane 3
2 is located in the hollow portion 5 for collecting water, and
The end portion of the hollow fiber membrane bundle 4 is held by the groove 7. In the above process, the end of the hollow fiber membrane 3 is
A number of hollow fibers whose ends 2 have been pre-opened by cutting the part
The hollow fiber membrane bundle 4 obtained by bundling the membrane 3 is used,
After a number of hollow fiber membranes 3 are bundled into a hollow fiber membrane bundle 4,
Cut the end of the hollow fiber membrane 3 on the side to be inserted into the uzing 1
Of course, the end face 2 may be opened. Insert the end of the hollow fiber membrane bundle 4 into the slit 7
After that, a housing made of a horizontally long cylindrical body having a substantially U-shaped cross section
To the side plate that forms the end of the ging 2 in the longitudinal direction,
A water collecting port indicated by reference numeral 10 is attached. This
The water collecting port 10 communicates with an external water collecting pipe,
For filling and filling potting resin in two stages to be described later
Therefore, you can attach it after forming the potting part.
Yes. Subsequently, the hollow fiber membrane module of the present invention is manufactured.
In the second step of the manufacturing method, the end portion is inserted into the slit 7
Between the hollow fiber membrane bundle 4 and the inner peripheral wall surface of the housing 1
Potting resin is applied to the resin injection parts 8 and 8 formed of recesses.
Injection, filling and hollow fiber membrane by potting resin
The hollow fiber membrane bundle 4 is fixed to the housing 1 for the rule. In the manufacturing method of the hollow fiber membrane module of the present invention,
In this case, potting resin is applied to the resin injection portions 8 and 8.
The process of filling and filling the first potting resin
Hollow fiber membrane 3 for hollow fiber membrane module by injection and filling
Temporarily fixing the housing 1 and the second potty
The hollow fiber membrane 3 is made into a hollow fiber membrane by injecting and filling the resin.
In two stages, the process of fixing to the module housing 1
Of the first potting resin.
Forming a resin layer that will be the potting part
By filling and filling the potting resin,
And a resin layer to be a potting portion indicated by reference numeral 12
By forming, for example, as shown in FIG.
A hollow fiber membrane module 13 of the type is obtained. The first potting resin injection
Filling and filling and second potting resin filling and filling
At the time of the first injection and filling of potting resin
The viscosity of the potting resin injected by
10000 mPa · s and second potting
Potting resin injected by filling and filling
The viscosity is 500 to 3000 mPa · s, and
Injection by filling and filling the second potting resin
The first potting tree
Viscosity of potting resin to be injected by fat injection and filling
It is preferable to lower the degree. That is, the first potting resin injection
In filling and filling, the viscosity of the potting resin to be injected is 30
In the range of 00 to 10000 mPa · s, and
Higher than the viscosity of potting resin
By turning the potting resin between the hollow fiber membranes 3
It can be inserted to some extent, and the end of the hollow fiber membrane 3
Resin dripping that closes the opening of surface 2 may occur.
Do not. The next second potting resin injection,
In filling, the potting resin to be injected has a viscosity of 500-
1st time within the range of 3000 mPa · s
By making it lower than the viscosity of the coating resin,
Do not wrap around with the first potting resin injection and filling
Potting into the fine gap between the hollow fiber membranes 3
Between the hollow fiber membranes 3
Caused by the penetration of potting resin between
It is desirable not to do so. The first potting resin injection,
For filling and second potting resin injection and filling
Use the same resin as the potting resin
Sometimes potty during filling and filling in each process
By changing the temperature of the resin, the first and second
Injecting and filling each potting resin with the first time
Make a difference in the viscosity of the potting resin
Or after filling the potting resin
With the difference in elapsed time until the first and second
Each potting resin is injected with filling, filling
To make a difference in the viscosity of the potting resin
That's fine. Second potting resin injection and filling
The potting resin injected by solidifies this
Module of hollow fiber membrane module
In order to maintain the shape of the
Small deformation of the hollow fiber membrane that occurs after the solidifying resin
The pressure resistance is greatly affected.
For example, the hardness of the resin after solidification is JIS A
It is desirable that the hardness is 60 or more, preferably 70 or more.
Yes. Also, the first potting resin injection,
Filling and filling the resin injection parts 8 and 8 by filling
5-50% potting of the total volume of potting resin
Inject and fill the resin so that the first
The end face 2 of the hollow fiber membrane 3 by injecting and filling the ting resin
Without causing resin dripping that closes the opening of
Moreover, the hollow fiber membrane 3 is replaced with a hollow fiber membrane module housing 1.
It is preferable to securely fix it securely. First injection and filling of potting resin
And the second potting resin injection and filling
For the interval between the start and the first potting
Of potting resin filled by resin injection and filling
After the solidification has started and the viscosity has increased, the second time
Start filling and filling potting resin
It is desirable. In the manufacturing method of the hollow fiber membrane module of the present invention,
As a housing for a hollow fiber membrane module,
Those having mechanical strength and durability are preferred, for example
Polycarbonate, polysulfone, polyolefin,
PVC, acrylic resin, ABS resin, modified PPE, etc.
The molded body is suitable. A method for manufacturing the hollow fiber membrane module
The hollow fiber membrane module obtained by
Do not emit toxic gas when it is necessary to dispose of
By hydrocarbon-based resin that can be completely burned
It is desirable to use a hollow fiber membrane module housing
That's right. As the hollow fiber membrane, for example, cellulose,
Polyolefin, polyvinyl alcohol, PMMA
-Based, polysulfone-based, fluorine-based (PTFE, PVDF
It is possible to use materials made of various materials such as
Hollow fiber membranes made of high-strength materials such as ethylene are preferred
Yes. The hollow fiber membrane can be used as a filtration membrane.
If so, its pore diameter, porosity, film thickness, hollow fiber outer diameter, etc.
There is no particular limitation. Insert into hollow fiber membrane module housing
The hollow fiber membrane is simply a hollow fiber membrane, hollow fiber
Knitting with bundles of membranes, hollow fiber membranes as wefts or warps
A cloth or a laminated body in which several pieces of the knitted cloth are laminated. Potting resin is a hollow fiber membrane made of hollow fiber membrane.
Fixed to the module housing and hollow with the housing
The ratio of viscoelasticity is to make the yarn membrane liquid-tight.
Higher resins are preferred, such as epoxy resins, unsaturated
Polyester resin, polyurethane resin, silicone
Fillers, various hot melt resins and the like are suitable. The hollow fiber of the present invention comprising the steps as described above
The manufacturing method of the membrane module is, for example, a flat membrane other than a hollow fiber membrane
For filtration membranes such as the
Depending on the element structure used, it may be applicable.
The Examples of the method for producing the hollow fiber membrane module of the present invention
A specific configuration of the law will be described based on examples. Embodiment 1 In FIGS. 1 and 2, the total length 100 in the length direction is shown.
0 mm, height of dam part 9 mm, tip of one dam part 9
A distance of 13 mm between the surface and the tip surface of the other weir 9
ABS resin hollow fiber membrane module with lit 7 width of 0.8mm
In FIG. 3, reference numeral 13 is used for the control housing 1.
A hollow fiber membrane module of the type shown was obtained. That is, the hollow fiber membrane module housing
Hollow with end face 2 opened in slit 7 of ging 1
The end portion of the hollow fiber membrane bundle 4 by the yarn membrane 3 is connected to the hollow fiber membrane 3.
The end face 2 of the housing is located in the water collecting hollow portion 5 of the housing 1.
Inserted as such. The hollow fiber membrane bundle 4 has a Mitsubishi Rayon.
Polyethylene hollow fiber membrane 3 (fractionation performance 0.4)
132 pcs / 吋 and polyester (μm, outer diameter 540 μm)
A knitted fabric made of constraining yarn made of filament yarn
One module was used per module. Subsequently, the terminal portion in the length direction of the housing 1
In FIG. 3, reference numerals 10 and 10 are provided on the side plates on both sides.
After attaching the water collecting port to be used, the end of the slit 7
The hollow fiber membrane bundle 4 into which the wire is inserted and the inner peripheral wall of the housing 1
Polyurea is injected into the resin injecting portions 8 and 8, which are concave portions between the surfaces.
Potty made of tan resin (Nippon Polyurethane Co., Ltd.)
Inject, fill, and solidify the resin, and use [Fig. 3]
A hollow fiber membrane module of the type indicated by 13 was obtained. The potting resin is always injected and filled.
Polyurethane resin with a viscosity of 3000 mPa · s at temperature (day
This polyurethane) is injected at room temperature, and resin is injected.
All of the potting resin that is to be injected and filled
Of the first potting resin filling 25% of the volume
Injecting, filling and pouring a viscosity of 800 mPa · s at room temperature
Injected with a resin (made by Nippon Polyurethane Co., Ltd.) at room temperature
Then, the potte that is to be injected and filled into the resin injection portions 8 and 8
Second pot that fills 75% of the total volume of resin
The first potting for filling and filling the ting resin
Potting resin filled after filling and filling
Of the second potting resin
The injection was started. Then, the potting resin is injected and charged.
The first time indicated by reference numeral 11 in FIG.
Potting part by injection of potting resin
For the second potting resin injection shown in No.12
To form a potting part consisting of
It was. 10 hollows obtained by the above process.
Repeated pressure test for the yarn membrane module 13
As a result, any of the ten hollow fiber membrane modules 13
It was also confirmed that it has sufficient pressure resistance performance. or,
In any of the ten hollow fiber membrane modules 13,
Resin dripping that closes the opening of the end surface 2 of the hollow fiber membrane 3 is
It did not occur. Example 2 In the process described in Example 1, the potting resin
For injection and filling, the viscosity is 2000 mPa · s at room temperature.
Urethane resin (made by Nippon Polyurethane Co., Ltd.) at room temperature
Into the resin injection parts 8 and 8 to be filled.
The first time filling 25% of the total volume of the coating resin
Injection and filling of ttting resin and viscosity at room temperature 2
000 mPa · s polyurethane resin (Japan Polyureta
) And heated to a viscosity of 800 mPa · s.
Injecting and filling the urethane resin into the resin injection parts 8 and 8
Fill 75% of the total volume of the planned potting resin
The second potting resin injection and filling, the first
After filling and filling the potting resin, the filled pot
After the solidification of the ting resin began, the second potte
Starting with the injection of resin, otherwise everything else
In the same manner as described in the first embodiment, [Fig. 3]
A hollow fiber membrane module of the type indicated by reference numeral 13 is obtained.
Repeated pressure test was performed on the yarn membrane module.
However, any of the ten hollow fiber membrane modules 13 is sufficient.
It was confirmed that it had a sufficient pressure resistance performance. Also, the above
Any of the ten hollow fiber membrane modules 13 has a hollow fiber
Resin dripping that closes the opening of the end surface 2 of the film 3 occurs.
It wasn't. Comparative Example 1 In the process described in Example 1, the potting resin
For injection and filling, the viscosity is 3000 mPa · s at room temperature.
All other than that described above.
In the same manner as described in FIG.
A hollow fiber membrane module of the type indicated by is obtained. The ten hollow fiber membrane modules obtained were observed.
As a result, in any of the 10 hollow fiber membrane modules
Resin dripping that closes the opening of the end face of the hollow fiber membrane
No potting resin between the hollow fiber membranes
10 hollow fibers with no wrap around
A leak occurred in any of the membrane modules. Comparative Example 2 In the process described in Example 1, the potting resin
For injection and filling, the viscosity is 1000 mPa · s at room temperature.
Even the resin dripping that blocks the opening of the end face of the hollow fiber membrane occurs.
It becomes a hollow fiber membrane module with reduced water permeability.
It was. The process for producing the hollow fiber membrane module of the present invention
Open at least one end face of the hollow fiber membrane in the fiber axis direction.
While maintaining the mouth state, the hollow fiber membrane is used as a potting resin.
Therefore, when fixing to the hollow fiber membrane module housing
The potting resin injection and filling process of the first potting resin
Hollow fiber membrane is hollow fiber by injection and filling
Temporarily fixing to the membrane module housing, 2nd
Hollow fiber membrane by filling and filling the potting resin of the eyes
2 with fixing to the housing for hollow fiber membrane module
This is done in stages. Accordingly, the hollow fiber membrane module of the present invention is manufactured.
According to the manufacturing method, depending on the density of the hollow fiber membrane to be used,
There is a part where the potting resin does not wrap around between the thread membranes.
Or close the opening on the end face of the hollow fiber membrane
Applicable hollow fiber membrane without resin dripping
Accurately form a high-quality potting part regardless of the density
Of high yield hollow fiber membrane modules
Can be manufactured. Also, the method for producing the hollow fiber membrane module of the present invention
According to the method, the end of the hollow fiber membrane by potting resin
After fixing the part to the hollow fiber membrane module housing,
There is no need to provide a cutting step for the fixed end of the hollow fiber membrane.
Therefore, it is possible to design the housing with a small diameter.
The Accordingly, the hollow fiber membrane module of the present invention is manufactured.
The hollow fiber membrane module obtained by the manufacturing method
Unit, the stacking rate per unit volume
Because it can be set high to achieve high filtration capacity
In addition, solid-liquid separation for sewage treatment and industrial wastewater treatment is performed efficiently.
A hollow fiber membrane module unit that can be
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of a hollow fiber membrane module obtained by the method of the present invention with a side plate forming a terminal portion of a housing removed. 2 is a cross-sectional end view before a potting resin injection and filling process for obtaining the hollow fiber membrane module shown in FIG. 1; FIG. FIG. 3 is a perspective view showing an example of a hollow fiber membrane module obtained by the method of the present invention. [Explanation of Symbols] 1... Hollow fiber membrane module housing 2... Open end surface 3 of hollow fiber membrane 3... Hollow fiber membrane 4. ... Hollow part 6 for collecting water ... Projecting part 7 for forming hollow part 5 for collecting water ... Slit 8 ... Resin injection part 9 ... Dam part 10... Water collecting port 11 attached to the side plate forming the terminal portion in the longitudinal direction of the housing 1... Potting portion 12 formed by the first injection and filling of potting resin. Potting part 13 formed by injecting and filling potting resin in the second round .... Hollow fiber membrane module
──────────────────────────────────────────────────── ─── Continued front page F-term (reference) 4D006 GA07 HA03 JA03A JA03C JB04 JB06 MA01 MB02 MB03 MC22 MC22X PA01 PB02 PB17 PB22 PC01 PC51 PC73
[Claims] [Claim 1] After inserting the end portion of the hollow fiber membrane having at least one end face in the fiber axis direction opened into the housing for the hollow fiber membrane module, potting resin is applied to the resin injection portion. In the method for producing a hollow fiber membrane module, by injecting and filling, the hollow fiber membrane is fixed to the hollow fiber membrane module housing by the potting resin while maintaining the open state of the end surface in the fiber axis direction of the hollow fiber membrane. The step of injecting and filling the potting resin into the resin injection portion includes the step of temporarily fixing the hollow fiber membrane to the hollow fiber membrane module housing by the first injection and filling of the potting resin, and the second time of the potting resin. And the step of fixing the hollow fiber membrane to the hollow fiber membrane module housing by injecting and filling Method for producing a hollow fiber membrane module that. 2. The viscosity of the potting resin injected by the first injection and filling of the potting resin is 3000.
Potting resin having a viscosity of 500 to 3000 mPa · s by injection and filling of the second potting resin, and injecting by filling and filling of the second potting resin. 2. The method for producing a hollow fiber membrane module according to claim 1, wherein the viscosity of the hollow fiber membrane module is lower than the viscosity of the potting resin injected by the first injection and filling of the potting resin. 3. The potting resin of 5 to 50% of the total volume of the potting resin to be injected into the resin injecting portion is injected by the first injection and filling of the potting resin. The manufacturing method of the hollow fiber membrane module of 2. 4. The hardness after hardening of the potting resin injected by filling and filling the second potting resin is JIS A hardness of 60 or more. The manufacturing method of the hollow fiber membrane module of any one of the above.
JP2001338152A 2001-11-02 2001-11-02 Method for producing hollow fiber membrane module Expired - Fee Related JP3908939B2 (en)
JP2001338152A JP3908939B2 (en) 2001-11-02 2001-11-02 Method for producing hollow fiber membrane module
JP2003135935A true JP2003135935A (en) 2003-05-13
JP3908939B2 JP3908939B2 (en) 2007-04-25
ID=19152687
JP2001338152A Expired - Fee Related JP3908939B2 (en) 2001-11-02 2001-11-02 Method for producing hollow fiber membrane module
JP (1) JP3908939B2 (en)
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