JP4596297B2 - Separation membrane element manufacturing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for manufacturing a separation membrane element using a separation membrane, and more particularly to an apparatus for manufacturing a separation membrane element that surrounds a laminated member of a separation membrane unit and a permeate channel member around a water collection pipe.
[0002]
[Prior art]
As a fluid separation membrane element used in a reverse osmosis device, an ultrafiltration device, a microfiltration device, etc., and also applicable to a gas separation device, as a fluid separation membrane element, a undiluted solution flow path material, undiluted solution to which undiluted solution is supplied A spiral-type fluid separation membrane element in which a unit comprising a permeate flow path material that permeates the separation membrane and guides the permeate separated from the stock solution into the water collection pipe is wound around the water collection pipe It has been known.
[0003]
The spiral separation membrane element is configured, for example, as shown in FIG. In the fluid separation membrane element 50 shown in FIG. 5, a laminated member 54 made up of a raw solution channel material 51, a separation membrane 52, and a permeate channel material 53 is wound around a water collection pipe 55 in a roll shape. An end plate 58 through which the raw water 57 can pass and an end plate 60 through which the concentrated water 59 can pass are arranged on both sides in the longitudinal direction of the body 56, and a sealing material 61 is attached to each end plate 58, 60. The permeated water 62 is sent out from the water collecting pipe 55. The entirety is accommodated in a pipe-shaped pressure vessel (not shown), and the space between the end plates 58 and 60 and the inner peripheral surface of the pressure vessel is sealed with a sealing material 61. As many fluid separation membrane elements 50 as shown in FIG. 5 are connected in the longitudinal direction as required.
[0004]
In assembling such a separation membrane element 50, the formation of the laminated member 54 and the surrounding of the water collecting pipe 55 are conventionally performed as follows. As shown in FIG. 6, the separation membrane unit 63 is formed by folding a sheet separation membrane 52 in half so that the stock solution passage material 51 is sandwiched therebetween, and the lowermost permeate passage material is formed long. The separation membrane units 63 and the permeate channel material 53 are alternately stacked on the 53a, and the permeate channel material 53 is located on the lower layer side with the tip of the permeate channel material 53 located on the lower layer side. 53, the laminated member 54 having the uppermost layer as the permeate passage material 53b is formed, and is collected on a suitable base 64 with the tip of the lowermost permeate passage material 53a as the winding start end. The water pipe 55 is wound around by hand.
[Patent Document 1]
Japanese Patent Laid-Open No. 11-226366
[Problems to be solved by the invention]
However, in the manufacture of the separation membrane element as described above, when the laminated member 54 is wound around the water collecting pipe 55, the tip 65 of each permeate flow path material 53 that is sequentially joined may turn up. Depending on the situation, there is a risk that the wire will be wound with its tip folded back. When the tip is folded back and wound, it becomes difficult to form the final wound body 56 in a predetermined cylindrical shape, and an undesired flow occurs in the folded portion, and the performance of the separation membrane element May occur. Conventionally, in order to avoid such inconvenience, the winding is performed while holding the tip 65 of each permeate flow path material 53 by hand at the time of winding. However, workability is poor and enormous time is required for surrounding. There is a problem that requires.
[0006]
Further, as shown in FIG. 6, the uppermost layer is formed with a long permeate passage material 53b, and is disposed so as to cover the front end 65 of each permeate passage material 53 in the middle. Although there is a method of preventing the folding, the uppermost permeate passage material 53b and the lowermost permeate passage material 53a are wound adjacently in the state of the wound body 56. In addition, the amount of material used as the entire permeate channel material is wasted. In the first place, the uppermost permeate flow path material 53b is provided to maintain the form of the lower layer laminated member 54, and is not necessary for the function of the separation membrane element. This is particularly desirable in terms of cost if the surrounding work can be performed even if omitted.
[0007]
An object of the present invention is to focus on the above-described problems and demands, and to prevent the permeate flow path material from being folded at the time of winding the laminated member around the water collection pipe, thereby facilitating the surrounding work. Manufacturing of a separation membrane element that can save time and can reduce the cost by omitting the permeate flow path material of the uppermost layer of the laminated member and can be configured as an automated apparatus. To provide an apparatus.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the separation membrane element manufacturing apparatus of the present invention comprises a separation membrane unit formed by folding a single-sheet separation membrane in half so that a stock solution channel material is sandwiched therebetween, and a permeate flow Laminating members are alternately stacked, and a laminated member in which the tip of the permeate channel material located on the upper layer side is sequentially joined to the permeate channel material located on the lower layer side of the permeate channel material of the lowermost layer. An apparatus for manufacturing a separation membrane element that surrounds a water collecting pipe with a leading end as a winding start end, and when winding the laminated member around the water collecting pipe, It has a means to push on the lower layer permeate flow path material.
[0009]
In this separation membrane element manufacturing apparatus, the push-in means can be composed of a free roller or a sliding guide plate. Further, the push-in means need only be arranged at the push-in position only when a push-in operation is required with respect to the tip portion of each permeate flow path material, so that the push-in / out position is advanced / retreated. It is preferable to be provided. Furthermore, since the position of the tip of each permeate flow path material that is the target of the push-in operation changes as the winding of the laminated member around the water collection pipe proceeds, an appropriate push-in operation for the push-in operation is performed. It is preferable that the leveling means is floatingly supported by a spring or a cylinder device so that the leveling operation position can be automatically adjusted to an optimum position while maintaining the pressure.
[0010]
In the separation membrane element manufacturing apparatus according to the present invention as described above, when the laminated member is wound around the water collecting pipe, the tip of each permeate flow path material is prevented from being folded by the pushing means. In addition, they are sequentially pushed along the surface of the lower layer permeate passage material, and wound around the water collecting pipe in the pushed state. Therefore, there is no need to manually hold the tip of each permeate channel material, the surrounding work is greatly facilitated, the surrounding time can be shortened, the tact time is shortened, and automation is also possible. It becomes possible.
[0011]
Further, since the folding is surely prevented, the permeate flow path material of the uppermost layer of the laminated member which has been provided in order to prevent the occurrence of inconvenience such as the conventional folding is unnecessary, and the permeate flow of the uppermost layer is eliminated. Since the labor for laminating the road material can be saved, the tact time can be further shortened, and the amount of the permeate flow path material used can be reduced, thereby reducing the cost.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 to 3 show a separation membrane element manufacturing apparatus according to an embodiment of the present invention. In addition, the structure of the separation membrane element finally completed is the same as that shown in FIG.
[0013]
1 and 2, reference numeral 1 denotes an apparatus for manufacturing a separation membrane element defined in the present invention, and an apparatus that can automatically perform a surrounding operation. In FIG. 1, a swash plate 3 is provided on the surrounding carriage 2, and the swash plate 3 can be tilted from a horizontal posture to a tilted posture with a predetermined tilt angle by an extension operation of the cylinder 5 around the shaft 4. It has become. On the swash plate 3 maintained in a horizontal posture, the laminated member 6 laminated on another laminated carriage (not shown), for example, is transferred at another location.
[0014]
The laminated member 6 includes a separation membrane unit 9 formed by folding a sheet separation membrane 7 into two so as to sandwich a stock solution flow passage material 8 therebetween, and a permeate flow passage material 10 alternately stacked. The permeate passage material 10 located at the front end portion 11 is sequentially joined to the permeate passage material 10 located on the lower layer side. The lowermost permeate channel material 10 a is formed so that one end side thereof is longer than the other permeate channel material 10. As shown in FIG. 6, the uppermost permeate passage material is not provided.
[0015]
A tube receiver 12 is provided on the front end side of the swash plate 3, and a water collecting tube 13 is disposed thereon. The tip of the lowermost permeate channel material 10a is fixed to the water collecting pipe 13 by adhesion or the like, and is prepared for the next winding operation. In this state, as shown in FIG. 1, the front end portion 11 of each permeate flow path material 10 sequentially joined on the lowermost permeate flow path material 10 a, due to its own curl before unwinding, etc. May turn up.
[0016]
Next, in this embodiment, the winding carriage 2 is advanced in the direction of the arrow to the position of the push-out means 14 shown in FIG. The push-out means 14 has a free roller 15 at the lower end, and the free roller 15 is floatingly supported by a spring 16 so as to be pressed downward with an appropriate pressing force. The entire push-out means 14 is also moved up and down by appropriate means such as a cylinder device (not shown).
[0017]
After the winding carriage 2 is advanced to the position shown in FIG. 2, the swash plate 3 is inclined from the horizontal posture to a predetermined inclination angle by the extension operation of the cylinder 5, and at the same time, the water collecting pipe held by the pipe receiver 12. 13 is raised. When the water collecting pipe 13 is raised to a predetermined position, as shown in FIG. 3, the surrounding shaft 17 is advanced from both ends thereof, and the surrounding shaft 17 is connected to the water collecting pipe 13. After that, the push-out means 14 and its free roller 15 are lowered to a position in contact with the lowermost permeate passage material 10a or to a position just above it. In this state, the free roller 15 is floatingly supported by the spring 16 and is held so that it can be retracted as needed when a force is applied from the laminated member 6 side.
[0018]
Next, the water collecting pipe 13 is rotated by the rotational drive of the surrounding shaft 17, and the laminated member 6 is wound around the water collecting pipe 13. Along with this winding, the front end portion 11 of each permeate flow path material 10 of the laminated member 6 sequentially reaches the position of the free roller 15, and by the pushing operation by the free roller 15, It is pushed sequentially along the surface. Therefore, the folding of the distal end portion 11 of each permeate channel material 10 accompanying the winding operation is automatically and smoothly prevented.
[0019]
Even during the push-in operation, the free roller 15 is supported by the spring 16 so as to float, so that an excessive force is not applied and an appropriate pressing force necessary for the push-in is always maintained. In addition, a change in the position of the tip portion 11 to be pushed is also absorbed by this floating support. If the change in the position of the tip portion 11 cannot be absorbed only by the floating support, the push-out means 14 itself may be raised as appropriate.
[0020]
When all of the push-in operations of the tip portions 11 are finished, the role of the push-out means 14 is also finished. Therefore, the push-out means 14 may be retracted upward at an appropriate timing.
[0021]
After the surrounding operation by the rotational drive of the surrounding shaft 17 is completed, for example, the surrounding body is rotated on the shaping roller 18 by surface driving, and the cylindrical shape of the surrounding body can be shaped into a more preferable shape. .
[0022]
In the winding operation as described above, the occurrence of inconvenience such as folding of the tip end portion 11 of each permeate flow path material 10 due to the winding operation is automatically prevented by the push-out means 14, and the desired winding is performed. The enclosure is reliably formed. Since it is an automatic push-out operation by the push-out means 14, it is completely unnecessary to manually hold each tip 11 as in the prior art, and the surrounding operation is facilitated and the surrounding operation is performed. Time can be shortened. In addition, as a result of preventing the occurrence of inconvenience such as folding, it becomes unnecessary to laminate the permeate flow path material of the uppermost layer which has been conventionally provided, the laminating work time is shortened, and the permeate flow to be used is reduced. The amount of road material is reduced, and the cost can be reduced. Therefore, the tact time of the entire surrounding process including the stacking operation can be greatly shortened, and the manufacturing cost of the separation membrane element can be reduced.
[0023]
In the above embodiment, the free roller 15 is used as the push-in means 14, but the present invention is not limited to this, and other means that can push the tip portion 11 of each permeate flow path material 10 are adopted. Also good. For example, as shown in FIG. 4, a hook-shaped sliding guide plate 21 may be provided, and the sliding guide plate 21 may be configured to be floatingly supported by the spring 16 as described above. The sliding guide plate 21 may be slidably supported in the direction of the arrow 23 via the guide mechanism 22. The push-out means 24 using the sliding guide plate 21 can provide the same operation and effect as the above-described embodiment.
[0024]
【The invention's effect】
As described above, according to the separation membrane element manufacturing apparatus of the present invention, it is possible to reliably prevent the tip of each permeate flow path material from being folded when the laminated member is wound around the water collecting pipe, The surrounding work can be facilitated, automated and time-saving, and the permeate channel material of the uppermost layer of the laminated member is omitted to facilitate the lamination work and reduce the time. The amount of materials used can be reduced. As a result, it is possible to shorten the tact time of the entire surrounding process including the stacking operation and to reduce the manufacturing cost of the separation membrane element.
[Brief description of the drawings]
FIG. 1 is a side view of a separation membrane element manufacturing apparatus according to an embodiment of the present invention.
FIG. 2 is a side view of the apparatus of FIG. 1 when proceeding to the next operation.
FIG. 3 is a front view of a surrounding shaft portion in the second device.
FIG. 4 is a side view of a separation membrane element manufacturing apparatus according to another embodiment of the present invention.
FIG. 5 is an exploded perspective view showing an example of an assembly of separation membrane elements.
FIG. 6 is a side view of a conventional laminated member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Separation membrane element manufacturing apparatus 2 Enclosure cart 3 Swash plate 4 Shaft 5 Cylinder 6 Laminating member 7 Separation membrane 8 Stock solution channel material 9 Separation membrane unit 10 Permeate channel material 10a Bottom layer permeate channel material 11 Permeation Liquid channel material tip 12 Tube receiver 13 Water collecting tubes 14, 24 Pushing means 15 Free roller 16 Spring 17 Enclosure shaft 18 Shaping roller 21 Sliding guide plate 22 Guide mechanism

Claims (4)

A separation membrane unit formed by folding a single-sheet separation membrane in half so as to sandwich a stock solution passage material therebetween, and a permeate passage material are alternately stacked, and a permeate passage material located on the upper layer side Manufacture of a separation membrane element in which a laminated member in which a tip portion is sequentially joined to a permeate channel material positioned on the lower layer side is wound around a water collecting pipe with the tip portion of the permeate channel material at the bottom layer being wound around An apparatus comprising: a means for pushing a tip portion of the sequentially joined permeate flow channel material onto a lower permeate flow channel material when the laminated member is wound around a water collecting pipe. Separation membrane element manufacturing equipment. The separation membrane element manufacturing apparatus according to claim 1, wherein the leveling means is a free roller. The separation membrane element manufacturing apparatus according to claim 1, wherein the push-out means includes a sliding guide plate. The separation membrane element manufacturing apparatus according to any one of claims 1 to 3, wherein the push-out means is floatingly supported so as to be able to advance and retreat.

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