JP3229629B2 - Membrane separation module and membrane separation device using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane separation module and a membrane separation module useful for selectively separating components in a liquid by hollow fibers.
Beauty relates to membrane separation equipment using the same.

[0002]

2. Description of the Related Art A pervaporation method using a selectively permeable membrane is employed for dehydration and purification of an azeotropic mixture or an organic solvent. In this pervaporation method, a flat membrane-shaped permeable membrane is usually used, and a liquid to be treated is supplied to the primary side of the permeable membrane.
By reducing the pressure on the secondary side, which is the permeate side, a specific component of the fluid is transmitted in a gaseous state. However, in this method, since a flat membrane is used as the permeable membrane, the contact area with the fluid is small and the separation efficiency is small.

On the other hand, hollow fibers are also widely used as separation membranes. For example, JP-A-2-174902 and JP-A-2-290202 disclose a deaeration method in which a liquid is supplied to a hollow portion of a hollow fiber type separation membrane and a secondary side, a permeate side, is depressurized. ing. In the modules used in these methods, both ends of a hollow fiber bundle composed of a large number of hollow fibers are liquid-tightly and strongly bonded and sealed to both ends of a casing using a sealing agent such as an epoxy resin.

However, in this module, since the hollow fiber bundle and the casing are tightly integrated, if a defect occurs in the casing, the hollow fiber, or the sealing portion, it is necessary to replace the entire module. To efficiently and continuously separate the liquid to be treated, it is advantageous to connect a number of modules in series or in parallel. However, since the casing and the hollow fiber bundle are integrated at the sealing portion, each module has a line for supplying the liquid to be processed to the hollow fiber, a line for discharging the concentrated liquid, and a line for depressurizing the inside of the casing. Must be connected, which complicates the structure of the membrane separation device.

[0005] Further, on the sealing portion side, the hollow fibers and the hollow fiber and the casing are in close contact with each other by the sealing agent. Further, when the module becomes longer, the hollow fibers between the sealing portions also come into close contact with each other. Then, even if the pressure on the secondary side of the module is reduced, the permeation resistance of the permeated component increases at these close contact portions. In particular, when the azeotrope is separated or dehydrated from the organic solvent, the liquid condensed on the secondary side adheres to the hollow fibers, or the condensed liquid causes the hollow fibers to adhere to each other. In particular, the condensed liquid easily adheres to the contact portion. For this reason, the separation efficiency of the hollow fiber decreases, and the hollow fiber cannot be used effectively.

[0006] For the above reasons, the above-mentioned membrane separation module has a high cost of liquid separation and is economically disadvantageous.

[0007] Japanese Patent Application Laid-Open No. 60-257810 discloses a deaeration method in which a liquid is passed through a tubular polymer film provided in a vacuum chamber, the pressure in the vacuum chamber is reduced, and dissolved gas in the liquid is removed. An apparatus is disclosed. However, if a large number of tubular polymer membranes or spiral tubular polymer membranes are loaded into the chamber to increase the separation efficiency, this apparatus also suffers from the adhesion, condensate, etc., as described above. Therefore, smooth deaeration becomes difficult. On the other hand, if the amount of the tubular polymer membrane used is reduced to prevent the vacuum suction port from being blocked by the tubular polymer membrane, the separation efficiency is reduced.

Further, Japanese Patent Application Laid-Open No. 1-171618 discloses a gas separation module which has no housing or casing, is located at the center of a hollow fiber bundle, and is firmly attached to a tube sheet and end caps at both ends. A module having a bar is disclosed. However, this module requires a support rod located at the center of the hollow fiber bundle, and a tube sheet and an end cap to which the support rod is firmly attached at both ends, and has a complicated structure. Also,
Since the hollow fiber bundle is located on the outer periphery of the support rod, the hollow fiber is easily damaged by external force during conveyance or pressure fluctuation during processing.

Accordingly, it is an object of the present invention to provide a module using a hollow fiber, which has a simple structure, can protect the hollow fiber, can easily exchange the hollow fiber bundle, and converts the permeated component in the liquid to be treated into a gaseous state. It is an object of the present invention to provide a membrane separation module which is useful for smooth and efficient separation by using a membrane separation module.

Another object of the present invention is to provide a membrane separation apparatus which has a simple structure, can easily exchange hollow fiber bundles, and can efficiently separate a liquid to be treated.

It is still another object of the present invention to provide a membrane separation method capable of reducing separation cost and separating a permeated component of a liquid to be treated smoothly and efficiently in a gaseous state.

[0012]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that in a module using hollow fibers as a separation membrane, both ends of a hollow fiber bundle are not bonded and sealed to both ends of a casing. Both ends of the hollow fiber bundle are fixed, and the outer edge between the fixing portions can be ventilated or passed through .
Arranged tie rods, if subjected placed in Ji Yanba the separation of the liquid, found that the above object can be attained, and completed the present invention.

That is, the present invention provides a hollow fiber bundle comprising a plurality of hollow fibers, and a state in which both end faces of the hollow fibers are open.
A fixed portion in which both ends of the hollow fiber bundle are integrated,
The outer edge between the fixed portion and the outer side and the outside of the hollow fiber to a membrane separation module and a tie rod arranged in the vent or passed through possible states header for connection, liquid-tight sea
Connected to the fixed part via a sealing member for
And a casing for accommodating the hollow fiber bundle between the fixing portions.
The present invention provides a membrane separation module not provided with the above.

The present invention also provides a separation device provided with the module, wherein the inlet and outlet of the liquid to be treated and the hollow fiber are passed through.
In a chamber having an outlet for letting out the excess component,
Provided is a membrane separation device in which one or more modules are arranged .

In the above-mentioned membrane separation apparatus, two or more modules
May be connected in series or in parallel. Also,
The chamber may be capable of depressurization.

[0016]

In the membrane separation module, the module
When the header portion is mounted on the mounting portion in the chamber, the inside of the chamber is decompressed, and the liquid to be treated is supplied to the hollow portion of the hollow fiber, a specific component in the liquid to be treated passes through the hollow fiber. And the permeate side of the hollow fiber is fixed in a state that allows ventilation or liquid flow.
It communicates with the inside of the chamber via a tie rod arranged on the outer edge between the parts . Therefore, even if the hollow fiber is in contact, the permeated component moves smoothly into the chamber on the permeation side of the hollow fiber, and the condensation of the permeated component on the surface of the hollow fiber can be suppressed. The hollow fiber can be protected by the tie rod located on the transmission side of the hollow fiber. Furthermore, data located outside of the hollow fiber bundle
Since both ends of the rod may be fixed to the fixing portion of the hollow fiber bundle, the structure of the module is simple.

Further, since the header portion of the hollow fiber bundle can be attached to and detached from the mounting portion in the chamber, the membrane separation module can be easily mounted and replaced. Further, since the module may be mounted in the chamber without using a conventional casing, the structure of the membrane separation device can be simplified.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings.

[0019] Figure 1 is participating device having a membrane separation module
FIG. 2 is a schematic cross-sectional view of a main part showing a consideration example, and FIG. 2 is a schematic view of a membrane separation device provided with the membrane separation module of FIG.

In this example, the membrane separation module 1 includes a hollow fiber bundle 3 composed of a plurality of porous selectively permeable hollow fibers 2, and both ends of the hollow fiber bundle 3. In the opened state, fixed portions 4a and 4b bonded and embedded by a potting agent such as an epoxy resin or a urethane resin, and ring-shaped members 5a and 5b locked and integrated with the fixed portions 4a and 4b. And Even if separation occurs between the fixing portions 4a, 4b and the ring-shaped members 5a, 5b, the inner surfaces of the ring-shaped members 5a, 5b are provided to prevent the fixing portions 4a, 4b from moving up and down and being displaced. Are formed with concave portions 6a and 6b.

A spacer is provided between the ring-shaped members 5a and 5b. In this example, the spacer is composed of tie rods 7a and 7b firmly attached to the ring-shaped members 5a and 5b at a plurality of locations. These tie rods 7a and 7b are formed of a metal having high rigidity and high mechanical strength.

Since the space between the tie rods 7a and 7b communicates with the transmission side of the hollow fiber 2, the movement of the transmission component is not impaired. Also, tie rods 7a, 7b
Thus, the distance between the fixing portions 4a and 4b of the hollow fiber bundle 3 can be maintained at a constant distance, and the hollow fiber bundle 3 can be protected. Further, since the membrane separation module 1 includes the fixing portions 4a and 4b at both ends of the hollow fiber bundle 3 and the tie rods 7a and 7b, the structure is simple.

The membrane separation module 1 having such a structure is as follows.
As shown in FIGS. 1 and 2, they are positioned and fixed in parallel in a vacuum chamber 8 and are detachably mounted. That is, the inside of the chamber 8 is partitioned by two partitions 9a and 9b on which the mounting portion of the membrane separation module 1 is formed, and a decompression chamber 10 is formed between the two partitions 9a and 9b. The lower space of the chamber 8 constitutes a supply space 11 for supplying the liquid to be treated to the hollow portion of the hollow fiber 2, and the upper space constitutes the outflow space 12 through which the concentrated liquid that has not passed through the hollow fiber 2 flows out. Constitute.

A through hole 13 is formed in one of the partition walls 9a, and a mounting recess 14 in which the one fixing portion 4a of the module 1 is mounted is formed in a peripheral portion of the through hole 13. The space between the mounting recess 14 and the end surface of the fixing portion 4a of the membrane separation module 1 is sealed by an annular sealing member 15 such as an O-ring disposed in the annular recess of the mounting recess 14.

The other partition wall 9b is also provided with a through hole 16 forming a mounting portion. The other fixing portion 4b of the membrane separation module 1 disposed in the through hole 16 is provided with a partition 9b.
Liquid-tight. That is, an annular pressure member 17 is disposed at the mounting portion of the partition 9b, between the annular pressure member 17 and the end face of the fixed portion 4b, and between the annular pressure member 17 and the fixed portion 4b.
Annular sealing members 18 and 19 such as O-rings are arranged between the partition wall 9b. The annular clamping member 1
Reference numeral 7 is pressed against the partition wall 9b by a fastening member 20 such as a bolt and a nut. Therefore, the sealing between the annular pressing member 17 and the end face of the fixing portion 4b and the space between the annular pressing member 17 and the partition 9b are sealed by the annular sealing members 18 and 19.

The annular sealing members 15, 18 located between the end faces of the fixing portions 4a, 4b and the annular clamping member 17.
Imparts high sealing performance even if the fixing portions 4a, 4b and the ring-shaped members 5a, 5b are separated.

A supply pipe 22 for supplying the liquid to be treated is connected to the chamber 8 corresponding to the supply space 11 via a valve 21a, and the supply pipe 22 for supplying the liquid to be processed is connected to the chamber 8 via the valve 21b. , An outflow pipe 23 is connected. Further, a suction pipe 24 provided with a vacuum pump (not shown) is connected to the chamber 8 corresponding to the decompression chamber 10 via a valve 21c.

In such a membrane separation apparatus, when the liquid to be treated is supplied from the supply space 11 to the hollow portion of the hollow fiber 2 through the supply pipe 22 and the pressure in the decompression chamber 10 is reduced through the suction pipe 24, Component selectively permeates the hollow fiber 2 in a gaseous state. The liquid to be treated is often supplied by heating. The permeated component that has passed through the secondary side, which is the permeate side of the hollow fiber 2, is discharged through the suction pipe 24 or cooled and liquefied by a condenser (not shown).
Separated. In this case, there is no need for a casing for accommodating the hollow fiber bundle as in the conventional case, and the hollow fiber bundle 3 is
Since it communicates with the inside of the decompression chamber 10 through a and 7b, the permeation component is smoothly transmitted to the decompression chamber 10 with a small transmission resistance. Therefore, the separation efficiency by the hollow fiber 2 can be increased. On the other hand, the concentrated liquid that has not passed through the hollow fiber 2 moves to the outflow space 12 and passes through the outflow pipe 23 to the chamber 8.
Spill out of. The effluent concentrate is usually cooled in many cases.

Even if the membrane separation module 1 is damaged, a new membrane separation module can be easily mounted on the mounting portions of the partition walls 9a and 9b, and replacement is easy. Furthermore, since it is not necessary to connect a supply pipe, a suction pipe, and an outflow pipe to each of the membrane separation modules 1, the structure is simple.

[0030] Figure 3 is a membrane fraction separated module and the membrane separator
It is a main Bugai schematic sectional view showing another reference example. In this example,
The membrane separation module 31 includes a hollow fiber bundle 33 composed of a large number of hollow fibers 32, and a fixed portion formed at each end of the hollow fiber bundle 33 and embedded and integrated with both ends of the hollow fiber 32 open. 34a and 34b.
The ends of the spacers that allow ventilation or liquid flow are buried and integrated with the peripheral portions of the fixing portions 34a and 34b. That is, the spacer is a hollow cylindrical body 3 having many openings 36.
5 and both ends of the cylindrical body 35 are
4a and 34b are embedded and integrated.

The fixing part 34 of the membrane separation module 31
The annular sealing member 37 similar to the above is provided on the side of
a and 37b. This annular sealing member 37a,
37b seals between the walls of the through holes of the upper and lower partitions 38a, 38b in the chamber and the side portions of the fixing portions 34a, 34b. Both ends of the fixing portions 34a, 34b are pressed inward by pressing members (not shown) fastened to the partitions 38a, 38b.

[0032] Figure 4 is a schematic sectional view showing the actual施例membrane separation module of the present invention, FIG 5 is a schematic diagram showing a real施例membrane separation apparatus of the present invention with a module shown in FIG. 4 is there.

The membrane separation module 41 includes a large number of hollow fibers 4
2, fixed portions 44 a and 44 b formed at both ends of the hollow fiber bundle 43, and the fixed portions 44.
ring-shaped members 45a, 45a fixed to and integrated with a, 44b
5b. These ring members 45a, 45b
Are formed with flanges 46a and 46b, and tie rods 47a and 47b are firmly attached.

The flanges 46a and 46b of the ring-shaped members 45a and 45b are connected to the flanges 49 of the headers 48a and 48b by fastening members 50 such as bolts and nuts.
a, 49b. End faces of the fixing portions 44a, 44b and flanges 49a, 49b of the headers 48a, 48b.
Are sealed by annular sealing members 51a and 51b. Connection flanges 52 are provided on the headers 48a and 48b.
a, 52b are also formed. These flanges 52a, 5
2b is used for communicating and connecting a plurality of modules.

In the apparatus shown in FIG. 5, a plurality of membrane separation modules 41 are connected via the connection flanges 52a and 52b.
a and 41b are connected in series to form a plurality of module units 53a and 53b.

Each of the module units 53a and 53b is
It is arranged in a chamber 54 that can be depressurized. That is, one of the membrane separation modules 41a, 41a of each of the module units 53a, 53b is attached to and detached from a flange that extends into the chamber 54 and forms a mounting portion of the supply pipe 55 to which the liquid to be treated is supplied by flange connection. They are freely connected. Further, the other membrane separation modules 41b, 41b are detachably connected to flanges extending into the chamber 54 and constituting a mounting portion of the outflow pipe 56 from which the concentrated liquid flows out by flange joining. The membrane separation modules 41a, 41a, 41b,
41b is mounted in the mounting part in a liquid-tight manner. The chamber 54 has a suction pipe 5 provided with a water ring vacuum pump 58.
7 is connected.

In such a membrane separation apparatus, the supply pipe 5
When the heated liquid to be processed is supplied through 5, the liquid to be processed is divided into the module units 53a and 53b. When the inside of the chamber 54 is decompressed through the suction pipe 57, a specific component in the liquid to be treated supplied to each of the membrane separation modules 41a and 41b selectively passes through the hollow fiber 42. The permeated component in the liquid to be treated is discharged through the suction pipe 57,
The concentrated liquid that has not passed through the hollow fiber 42 is discharged to the outlet pipe 56.
And cooled by a condenser (not shown). Also in this case, each of the membrane separation modules 41a, 41
Since the permeation side of the hollow fiber 42b communicates with the inside of the chamber 54, the separation efficiency by the hollow fiber 42 can be increased. In addition, not only can the module units 53a and 53b be connected to the mounting portions of the supply pipe 55 and the outflow pipe 56, but also the module units 53a and 53b can be easily disassembled into the respective membrane separation modules 41a and 41b. It is easy to replace the damaged membrane separation modules 41a and 41b. Further, the module unit 53
Since a and 53b are arranged in one chamber 54, the structure is simple.

FIG. 6 is a schematic view showing another embodiment of the membrane separation apparatus of the present invention. In this example, a plurality of membrane separation modules 61a, 61b, 61c connected in series or in parallel are respectively connected to the mounting portions in the chambers 62a, 62b, 62c. In this example, the chamber 62
a, a plurality of membrane separation modules 61a, 61b in 62b
Are connected in parallel, and the plurality of membrane separation modules 61c in the downstream chamber 62c are connected in series. The supply line 63 for supplying the liquid to be treated is connected to the most upstream membrane separation module 61a among the membrane separation modules 61a, 61b, 61c. The supply line 63 is provided with a feed pump 64a and a heat exchanger 65a for preheating the liquid to be treated.

The membrane modules 61a, 61b, 61c are connected by connection lines 66a, 66b functioning as an outflow line and a supply line. The connection lines 66a and 66b are provided with pumps 64b and 64c, respectively, for supplying the concentrated liquid that has not passed through the hollow fiber, and heat exchangers 65b and 65c for preheating the concentrated liquid. Further, an outflow line 67 is connected to the most downstream membrane separation module 61c, and a cooler 68 is provided in the outflow line 67.

Each of the membrane separation modules 61a, 61
A part of the concentrate that did not pass through the hollow fibers of b and 61c was
The supply line 63 and the connection lines 66a, 66b are respectively connected to the recycle lines 69a, 69b, 69c.
Recycled upstream.

On the other hand, each of the chambers 62a, 62b, 62c
Inside the condenser 70a, 70a, the condensed and liquefied gaseous components that have selectively passed through the hollow fiber are liquefied.
b, 70c are arranged. These capacitors 70
a, 70b, 70c are suction lines 71a,
71b, 71c, and these suction lines
Vacuum pumps 72a, 72b, 72c for reducing the pressure in the chambers 62a, 62b, 62c are provided.

Further, the capacitors 70a, 70b,
A circulation line 73 for circulating and supplying the refrigerant is provided at 70c.
a, 73b and 73c are connected. The liquids condensed and liquefied by the condensers 70a, 70b, 70c are respectively discharged by the pumps 74a, 74b, 74c, merged, and discharged through the discharge line 75.

In such an apparatus, the liquid to be treated supplied by the feed pump 64a through the supply line 63 is preheated by the heat exchanger 65a and the first chamber 6
It is supplied to the first membrane separation module 61a arranged in 2a. The concentrated liquid that has not passed through the hollow fiber is transferred to the heat exchanger 65 by the pump 64b through the connection line 66a.
b. The concentrated solution heated to a predetermined temperature by the heat exchanger 65b is supplied to the second membrane separation module 61b in the second chamber 62b. The concentrated liquid is further concentrated by the membrane separation module 61b, and the connection line 66b, the pump 64c, the heat exchanger 6
After passing through 5c, it is supplied to the third membrane separation module 61c in the third chamber 62c. In the third membrane separation module 61c, the concentrate is further concentrated, and the outflow line 6
7 and is cooled by the cooler 68.

Therefore, in such an apparatus, the liquid to be treated can be continuously concentrated by the membrane separation modules 61a, 61b, 61c in the decompressible chambers 62a, 62b, 62c. In addition, the temperatures of the liquid to be treated and the concentrated liquid can be individually adjusted by the heat exchangers 65a, 65b, and 65c, and the degree of vacuum in the chambers 62a, 62b, and 62c can be individually adjusted. Therefore, the temperature and the degree of vacuum can be adjusted according to the concentrations of the components to be separated in the liquid to be treated and the concentrated liquid, and the separation efficiency is high. Further, each chamber 62
a, 62b, 62c, a plurality of membrane separation modules 61
Since a, 61b, and 61c are mounted, the separation efficiency can be further increased. In particular, when the water content of the liquid to be treated is large, the permeation amount is large in the upstream membrane separation module, and the temperature drop is large. However, since the upstream membrane separation modules 61a and 61b are connected in parallel, ,
The rate of temperature decrease can be reduced. In addition, since the concentrated liquids from the upstream membrane separation modules 61a and 61b are connected in series and supplied to the downstream membrane separation module 61c, the liquid to be treated can be efficiently separated while suppressing a decrease in temperature. .

When the permeated components in the liquid to be treated permeate through the hollow fibers of the membrane separation module, the temperature of the concentrated liquid decreases,
Processing efficiency decreases. In particular, when a low-concentration liquid to be treated is treated, the tendency is large because the rate of vaporization is large. However, the recycling lines 69a, 69b, 6
Since part of the concentrated liquid is recycled to the supply line 63 and the connection lines 66a and 66b by 9c, the concentration of the liquid to be treated and the concentrated liquid supplied to each of the membrane separation modules 61a, 61b and 61c can be increased in advance. it can. for that reason,
It is possible to suppress the temperature drop of the concentrated liquid that has not passed through the hollow fiber,
It can be separated efficiently.

The gaseous permeated components present in the chambers 62a, 62b and 62c and selectively permeating the hollow fibers are:
Capacitors 70a, 7b are respectively operated by vacuum pumps 72a, 72b, 72c of suction lines 71a, 71b, 71c.
Ob and 70c condense and liquefy. The condensed and liquefied permeated liquid is discharged through a discharge line 75 by pumps 74a, 47b, and 74c.

In the membrane separation module of the present invention, in order to enhance the integration between the fixed portion and the ring-shaped member, at least one of the fixed portion and the ring-shaped member is formed with an uneven portion or a groove. Is preferred .

Further, in the membrane separation apparatus of the present invention, it is sufficient that at least one membrane separation module is disposed in the chamber. Further, the whole of the plurality of membrane separation modules connected in series and / or in parallel may be arranged in one chamber, or the individual membrane separation modules may be arranged in individual chambers. When a liquid to be treated containing a plurality of separation components is treated by a plurality of membrane separation modules, hollow fibers having different permeabilities to the separation components may be used.

In a preferred membrane separation device, a plurality of modules are connected in series or in parallel, and one or more modules are removably arranged in a chamber. In such an apparatus, the liquid to be treated can be continuously subjected to membrane separation, and the separation efficiency can be increased.

[0050] In addition, preferred device, header of the module
The damper portion is detachable from the decompression chamber in the chamber. Such an apparatus does not need to decompress the entire chamber and can reduce the decompression capacity, so that the liquid to be treated can be efficiently subjected to membrane separation.

The mounting portion of the chamber in which the membrane separation module is mounted is not limited to the above embodiment, and can be formed at an appropriate position in the chamber. For example, it is also possible to attach a plurality of membrane separation modules connected series and / or in parallel.

Further, the membrane separation device preferably has a heating means for heating the liquid to be treated supplied to the hollow fibers. Further, it is preferable to include a cooling means for cooling the concentrated liquid which has not passed through the hollow fiber and a condenser means such as a condenser for cooling and liquefying a permeated component which has passed through the hollow fiber in a gaseous state.

Further, in the membrane separation method using the membrane separation apparatus of the present invention, the liquid to be treated is heated to form a hollow portion of the hollow fiber in order to increase the separation efficiency of the hollow fiber and allow the permeated component to pass through in a gaseous state. Is preferably supplied to In a preferred method, the liquid to be treated is supplied to a plurality of modules connected in series or in parallel.

In the membrane separation method, a component that has permeated the hollow fiber and a component that has not permeated the hollow fiber are selected according to the type of the object to be separated from the liquid to be treated, the selective permeability of the hollow fiber, and the like. What is necessary is just to separate. In the case of dehydration from an azeotropic mixture or an organic solvent, a concentrated liquid that has not passed through the hollow fiber is usually recovered.

The present invention can be used for membrane separation of a liquid, for example, dehydration of an azeotrope or an organic solvent, separation of an organic mixture, and desalination of salt water.

[0056]

According to the membrane separation module of the present invention, the fixing portions at both ends of the hollow fiber bundle can be connected to the tie without using a casing.
Since it is composed of a rod and a detachable header ,
The structure is simple, the hollow fiber can be protected, the hollow fiber bundle can be easily replaced, and this is useful for separating the permeated component in the liquid to be treated smoothly and efficiently in a gaseous state.

The membrane separation device of the present invention has a simple structure since the fixing portion of the hollow fiber bundle is detachably attached to the mounting portion of the chamber and the chamber is capable of reducing the pressure on the transmission side of the hollow fiber. Thus, the hollow fiber bundle can be easily exchanged, and the liquid to be treated can be efficiently separated.

According to the membrane separation method using the membrane separation device of the present invention, the separation cost can be reduced, and the permeated component of the liquid to be treated can be separated smoothly and efficiently in a gaseous state.

[Brief description of the drawings]

FIG. 1 is a reference example of an apparatus equipped with a membrane separation module.
It is a principal part schematic sectional drawing which shows this.

FIG . 2 is a schematic view of a membrane separation device provided with the membrane separation module of FIG.

FIG. 3 shows another example of the membrane separation module and the membrane separation apparatus.
It is a principal part schematic sectional drawing which shows a reference example.

Figure 4 is a schematic sectional view showing a real施例membrane separation module of the present invention.

Figure 5 is a schematic diagram showing a real施例membrane separation apparatus of the present invention with a module shown in FIG.

FIG . 6 is a schematic view showing another embodiment of the membrane separation device of the present invention.

[Explanation of symbols]

1, 31, 41, 41a, 41b, 61a, 61b, 6
1c Membrane separation module 2, 32, 42 Hollow fiber 3, 33, 43 Hollow fiber bundle 4a, 4b, 34a, 34b, 44a, 44b Fixed part 7a, 7b, 47a, 47b Tie rod 8, 54, 62a , 62b, 62c ... chamber 10 ... decompression chamber 15, 18, 37a, 37b, 51a, 51b ... annular sealing member 22, 55 ... supply pipe 23, 56 ... outflow pipe 24, 57 ... suction pipe 35 ... cylinder 36 ... Opening 63: Supply line 67: Outflow line 71a, 71b, 71c: Suction line

Claims (4)

(57) [Claims] 1. A hollow fiber bundle composed of a plurality of hollow fibers, a fixed portion in which both ends of the hollow fiber bundle are integrated with both ends of the hollow fiber being open, and an outer edge between the fixed portions.
An outer side and the outside of the hollow fiber distribution in ventilation or passed through a state capable
Membrane separation module der which a tie rod which is
Thus, the connection header is a sealing member for a liquid-tight seal.
Is connected to the fixed portion via
Has no casing for housing the hollow fiber bundle.
Release module. 2. A separation device comprising the module according to claim 1, wherein the separation device is provided with an inlet / outlet for a liquid to be treated and a hollow fiber.
One or more chambers with outlets for the
Is a membrane separation device in which two or more modules are arranged . 3. The method according to claim 2, wherein two or more modules are connected in series or in parallel.
3. The membrane separation device according to claim 2, which is continued . 4. The membrane separation device according to claim 2 , wherein the pressure in the chamber can be reduced .