JP3487107B2 - Membrane separation device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a membrane separation device. More specifically, the present invention relates to a membrane separation device that achieves low pressure loss with reduced construction and space.

[0002]

2. Description of the Related Art Conventionally, various water treatment devices such as a septic tank have been equipped with a membrane separation device to separate and remove solid contents contained in water. FIG. 8: is sectional drawing which showed the structure of the membrane separation apparatus typically. For example, as shown in FIG. 8, the membrane separation device is a membrane module (5) that is used by being immersed in water to be treated (51).
2) is provided. In this membrane module (52), the water to be treated (51) is subjected to solid-liquid separation to remove floating substances contained in the water. Further, the membrane separation device is also provided with a water collecting header (53), and once the membrane permeated water (54) that has passed through the membrane module (52) is guided to this water collecting header (53), the water is collected in a predetermined manner. The treated water can be transferred to the site.

In such a membrane separation device, the membrane module (52) and the water collecting header (53) are generally connected by a conduit as shown in FIG. That is, a water collecting pipe (55) is provided between the membrane module (52) and the water collecting header (53) to connect them to each other.

[0004]

However, in the conventional membrane separation device as shown in FIG. 9, for example, the connection structure between the membrane module (52) and the water collecting header (53) should be solved. There are challenges. That is, in the membrane separation device, the membrane module (52) has one water collecting pipe (5
Since it is connected to the water collection header (53) via 5),
As a matter of course, the number of the water collecting pipes (55) matches the number of the membrane modules (52), and the number of the water collecting pipes (55) increases as the number of the membrane modules (52) increases. Therefore, the piping in the membrane separation device becomes complicated,
There is a problem that the construction of the water collection pipe (55) takes time and effort.

Particularly in the conventional membrane separation device, the water collecting pipe (5
5) and the membrane module (52) are connected by the connection method as shown in FIG. 10, and the above-mentioned problem is revealed. In this connection method, the membrane module (5
A hose niple (56) is provided on the 2) side, and after fitting the water collecting pipe (55) into the hose niple (56), the band (57) is used to tighten the water collecting pipe (55) to the hose niple (56). Fix it. Such work must be performed for each membrane module (52).
Therefore, as the number of the membrane modules (52) increases, the connection work with the water collecting header (53) becomes complicated and intricate.

[0006] The above points are also observed during inspection and maintenance of the membrane separation device. That is, the water collecting pipe (55) must be removed and attached for each membrane module (52). Further, in the conventional membrane separation device, the water collecting pipe (55)
The use of, requires that much space.
Moreover, the pressure loss increases even by the length of the water collecting pipe (55). In transferring the membrane permeated water (54), it is preferable to minimize the pressure loss.

The present invention has been made in view of the above circumstances, and solves the drawbacks of the conventional membrane separation apparatus,
It is an object of the present invention to provide a membrane separation device that realizes low pressure loss with workability and space saving.

[0008]

SUMMARY OF THE INVENTION The present invention, as to solve the above problems, the first, the membrane module and the membrane module having a connecting portion for solid-liquid separation process water to be treated
In the membrane separation apparatus consisting of catchment headers with the connection receiving section capable direct mounting linked, catchment header, divided
It is composed of a set of unit parts that are
It is possible to connect the connection receiving part for
It has one connecting male part and one female part for adjusting the insertion depth.
The connecting male part of the unit parts can be
Membrane module characterized by being inserted into the connecting female part of unit parts
We provide a membrane separation device that can change the arrangement interval of the tools.
Second, depending on the number of installed membrane modules,
The above-mentioned membrane separation device in which the length of the lidder is variable, and
Thirdly, there is provided the above-mentioned membrane separation device in which the connecting portion is provided on the back surface of the membrane module .

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The membrane separation apparatus of the present invention will be described in more detail below with reference to the drawings. 1 and 2
FIG. 2A is a front view and a side view, respectively, schematically showing an example of the membrane separation device of the present invention. For example, as shown in FIG. 1, in the membrane separation device of the present invention, the membrane module (1) can be directly attached to the water collecting header (2).

That is, in the membrane separation device, the membrane module (1) is provided with a connecting portion (11), and the water collecting header (2) is a connection receiving portion capable of being connected to the membrane module connecting portion (11). A plurality of (21) are provided. Then, the connection between the membrane module (1) and the water collecting header (2) is completed only by joining the connecting portion (11) of the membrane module (1) to the connection receiving portion (21) of the water collecting header (2). I have to.

The connecting portion (11) can be provided on the upper surface of the membrane module (1), for example, as shown in FIG. The connection receiving part (21) can be provided on the lower surface of the water collecting header (2) corresponding to the connection part (11). Such a connecting part (11) and a connecting receiving part (21)
There is no particular limitation on the arrangement position of. For example, as shown in the side view of FIG. 3, the connecting portion (11) can be provided on the back surface of the membrane module (1). In this case, it is preferable that the water collecting header (2) is provided with the connection receiving portion (21) on its front surface.

The membrane module (1) has a water collecting header (2)
In the state of being attached to, the membrane-permeated water (3) can be transferred to a predetermined site via the water collecting header (2) by communicating with each other. The water collecting header (2) can be provided with a discharge port (4) for the membrane permeated water (3) on one side surface thereof, for example. Membrane module connection part (1
1) and the water collecting header connection receiving portion (21) are illustrated in cross-section in FIG. 4 and FIG.

In the example shown in FIG. 4, a so-called union structure is adopted for the membrane module connecting part (11) and the water collecting header connecting receiving part (21). That is, the membrane module connecting part (11) is provided with screws (111) at a predetermined pitch on its outer circumference. On the other hand, the catchment header connection receiving part (21) is the tightening ring (211).
Is provided at the lower end and is pivotally supported. In this tightening ring (211), a screw (212) having the same pitch as that of the screw (111) cut in the membrane module connecting portion (11) is formed on the inner peripheral surface of the lower end portion. Can be engaged.

The membrane module (1) is attached to the water collecting header (2)
When connecting to the connection part (11), the connection part (11) is connected to the connection receiving part (2
After arranging just under 1), the tightening ring (211) is rotated and the screw (212) of the inner peripheral surface is screwed (11).
Engage with 1). When the tightening ring (211) has stopped rotating or is about to stop, the connecting portion (1
In 1), the connection receiving portions (21) are brought into contact with each other and joined.

In this connection structure, as shown in FIG. 4, an O-ring (5) can be interposed on the joint surface between the connection part (11) and the connection receiving part (21). With this O-ring (5), water tightness at the joint surface is secured securely. In this case, it is preferable that grooves (112) (213) are formed in the joint surfaces of the connecting portion (11) and the connecting receiving portion (21) for the stable arrangement of the O-ring (5).

In the example shown in FIG. 5, the one-touch type connection structure, which is also applied to the connection of gas pipes, is adopted for the membrane module connection part (11) and the water collecting header connection receiving part (21). That is, the catchment header connection receiving part (21)
Is tapered toward the lower end, and the fitting groove (215) is formed in the outer peripheral portion near the cone portion (214) where the diameter is gradually reduced.
Are formed.

On the other hand, in the membrane module connecting part (11),
Ball (114) connected to spring (113) at the upper end
Have been deployed. The spring (113) has a connecting portion (1
It is made compressible in the outward direction of 1), and when compressed, an elastic force toward the center is generated.
In addition, the shape of the inner surface of the connecting portion (11) is such that the connecting receiving portion (2
Corresponding to the outer shape of 1), it is formed so as to partially coincide with a part thereof.

The membrane module (1) is attached to the water collecting header (2)
When connecting to the connection part (11), the connection part (11) is connected to the connection receiving part (2
When pushed up from just below 1), the ball (114)
Contacts the outer surface of the cone portion (214) and is pressed outward. At this time, the spring (113) connected to the ball (114) is compressed and elastic force is accumulated. When the ball (114) reaches the position opposite to the fitting groove (215),
The elastic force of the spring (113) is released and the ball (114)
Is pushed back toward the center. As a result, the fitting groove (21
5) Fit inside. Such an operation is performed by the connecting part (11).
It is performed only by the operation of pushing up, and the joining of the coupling portion (11) and the coupling receiving portion (21) is a one-touch type.

Even in the case of such a connection structure, in order to secure the water tightness, the lower end portion (21) of the connection receiving portion (21) is
It is preferable that packing (217) is wound around the outer circumference of 6). The packing (217) is in close contact with the inner peripheral surface of the connection part (11) due to its inherent elasticity, and provides a good water sealing property. For example, as specifically illustrated in FIGS. 4 and 5, in the membrane separation device of the present invention, the conventional membrane separation device is used to connect the membrane module (1) and the water collecting header (2). Since the connection part (11) and the connection receiving part (21) are arranged in each without using the water collecting pipe, the membrane module (1) can be directly attached to the water collecting header (2). Installation and removal from (1) to the water collecting header (2) is easy, and construction is reduced. This also contributes to the improvement of maintainability. Also,
Since the piping is omitted, the space is reduced by that amount, saving space and reducing pressure loss.

The number of the connection receiving portions (21) provided in the water collecting header (2) is not particularly limited and can be set appropriately. Further, the configurations of the connecting portion (11) and the connecting receiving portion (21) are not particularly limited to the examples shown in FIGS. 4 and 5. Easy workability,
Any structure can be adopted as long as it has a structure that realizes low pressure loss.

FIG. 6 is an exploded side view schematically showing another example of the membrane separation device of the present invention. In the membrane separation device shown in FIG. 6, the water collecting header (2) is formed from an assembly of divided unit parts (22). The individual unit parts (22) have the same structure, structure and dimensions.

That is, the unit component (22) is provided with a coupling receiving part (21) for the membrane module, and one coupling male part (23) and one female part capable of coupling the components to each other. Although the connecting female portion is not shown in FIG. 6, it is built in the unit component (22). The connecting male part (23) and the connecting female part can be arranged at positions facing each other in the unit component (22), for example. More specifically,
As shown in FIG. 6, the connecting male part (23) is provided on one side surface of the unit component (22), and the connecting female part is provided on the opposite side surface. The unit component (22) is formed with a flow path from the connection male part (23) to the connection female part and a flow path from the connection receiving part (21) to the connection male part (23).

Such unit parts (22) are connected to each other by inserting the connecting male part (23) into the connecting female part of another unit part and are integrated to form the water collecting header (2). . Therefore, the length of the water collecting header (2) can be changed according to the number of membrane modules to be connected to it. That is, the water collecting header (2) is formed by connecting as many unit parts (22) as there are membrane modules.
It can be In a water treatment device provided with a membrane separation device, load conditions and the like are different among each other, and the number of membrane modules needs to be an optimum number according to the conditions and the like. In the membrane separation device shown in FIG. 6, since the length of the water collecting header (2) can be adjusted according to the number of membrane modules, it is possible to design and manufacture the device suitable for the optimal number of membrane modules. The restrictions imposed on the device design and manufacturing can be eliminated. Minimum 1
From a membrane separation device having only one membrane module to a membrane separation device having a large number of membrane modules, a membrane separation device of an optimum scale that meets load conditions and the like is realized.

Various connecting structures can be adopted for the connecting male part (23) and the connecting female part provided on the unit part (22). For example, the connecting part (shown in FIGS. 4 and 5) 11) and the connection receiving portion (21) may be a union structure or a one-touch type connection structure. There is no particular limitation on the structure. An appropriate structure that can easily connect the unit parts (22) to each other can be arbitrarily adopted.

In the formed water collecting header (2), the connecting male part (23) of the unit component (22) located at the foremost part thereof.
Is the discharge port for the membrane permeated water. In this case, a stopper (24) is attached to the connecting female part of the unit component (22) located at the rearmost part and closed to prevent leakage of the permeated water. FIG. 7 is an exploded side view schematically showing still another example of the membrane separation device of the present invention.

In the membrane separation device shown in FIG. 7, the membrane separation shown in FIG. 6 is further developed, and the arrangement intervals of the membrane modules are also variable. The arrangement interval of the membrane modules is particularly important for, for example, changing the amount of aeration, changing the flow velocity on the membrane surface, preventing clogging between membranes, and designing the apparatus so that the membranes can be cleaned. In this membrane separation device, a spacer (6) is prepared, spacers (61) (62) (63) having a predetermined thickness are provided between two unit parts (22) to be connected, and these spacers (61 ) (62) (63) individual thicknesses and thicknesses resulting from the combination thereof adjust the insertion depth of the connecting male part (23) into the connecting female part, so that the arrangement interval of the membrane modules can be changed. When the spacer (6) is interposed, the arrangement interval of the thickness (t) membrane separating modules is expanded. The type of spacer (6) to be prepared is not particularly limited, and various types can be prepared, from thin ones to thick ones. The material is also not particularly limited, and for example, a material having good durability and also being lightweight can be appropriately selected.

By adopting such a spacer (6), the arrangement interval of the membrane modules can be set arbitrarily, and this can be realized without newly designing and manufacturing special parts. It is also possible to partially change the arrangement interval of the membrane modules. It is possible to design and manufacture a membrane separation device that is optimal for a wide variety of individual conditions.

Of course, the present invention is not limited to the above examples. It goes without saying that various aspects are possible in details such as the structure of the connection part and the connection receiving part, the connection male part and the female part, and the structure of the membrane module and the water collecting header.

[0029]

As described in detail above, according to the present invention, a membrane separation device which realizes a low pressure loss while saving workability and space is provided.

[Brief description of drawings]

FIG. 1 is a front view schematically illustrating an example of a membrane separation device of the present invention.

2 is a side view of the example of FIG. 1. FIG.

FIG. 3 is a side view schematically illustrating another example of the membrane separation device of the present invention.

FIG. 4 is a cross-sectional view of a main part illustrating a specific configuration of a membrane module connecting portion and a water collecting header connecting receiving portion.

FIG. 5 is a sectional view of an essential part showing another example of the specific configuration of the membrane module connecting part and the water collecting header connecting receiving part.

FIG. 6 is an exploded side view schematically showing another example of the membrane separation device of the present invention.

FIG. 7 is an exploded side view schematically showing still another example of the membrane separation device of the present invention.

FIG. 8 is a cross-sectional view schematically showing the configuration of a membrane separation device.

FIG. 9 is a perspective view of a main part showing a connection structure between a membrane module and a water collecting header in a conventional membrane separation device.

10 is a cutaway side view of essential parts showing a connection system between a membrane module and a water collection pipe used in the connection structure shown in FIG.

[Explanation of symbols]

1 membrane module 2 Water collection header 3 membrane permeate 4 outlets 5 O-ring 6 spacers 11 Connection 21 Connection receiving part 22 unit parts 23 Connected male part 24 stoppers 61,62,63 spacer 111 screws 112 groove 113 spring 114 balls 211 Tightening ring 212 screws 213 groove 214 Cone part 215 Mating groove 216 Lower end 217 Packing

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Kano 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (72) Hitoshi Kitamura, 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. ( 56) References JP-A-7-232040 (JP, A) JP-A-9-19684 (JP, A) JP-A-7-232041 (JP, A) JP-A-3-137921 (JP, A) (58) ) Fields surveyed (Int.Cl. ⁷ , DB name) B01D 63/08 C02F 1/44

Claims (3)

(57) [Claims] 1. A connection part for solid-liquid separation treatment of water to be treated is provided.
The membrane module and the membrane module can be directly attached and connected.
In the membrane separation apparatus consisting of catchment headers with Kill coupling receiving portion, catchment header divided unit part of the current
It is a united product, and the unit parts are the connection receiving parts for membrane modules
And a connecting male part and female part that enable connection between unit parts
Each one is equipped with a spacer for adjusting the insertion depth.
Insert the connecting male part of the unit parts to connect the female part of other unit parts
Insertion of the membrane module
Variable membrane separation device. 2. The membrane separation device according to claim 1, wherein the length of the water collecting header is variable according to the number of installed membrane modules. 3. A connection part is provided on the back surface of the membrane module.
The membrane separation device according to claim 1 or 2, characterized in that .