JPH0660430U - Membrane separation unit structure - Google Patents

Abstract

(57) [Summary] [Structure] The ears 30 protruding laterally to the membrane module 22.
And the guide groove 23 is provided in the main body casing 21, and the step portion 24 that receives the ear portion 30 in the guide groove 23 is provided.
The suction port portion 25 communicating with the suction flow channel 26 is provided on the bottom surface of the step portion 24, and the suction port portion 31 communicating with the permeate flow channel is provided on the lower surface of the ear portion 30, and the suction port portion 25 and the suction port portion 25 are provided. Has a detachable fitting structure. [Effect] By guiding the suction port portion 31 to the suction port portion 25 by the guide groove 23 and fitting the two together, the membrane module 22 can be inserted and removed along the guide groove 23 to form a permeate flow path of the membrane module 22. The suction passage of the main body casing 21 can be connected / disconnected, and maintenance work can be easily performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a membrane separation unit, and more particularly, to a connection structure of individual membrane modules constituting the membrane separation unit and a main body frame.

[0002]

[Prior art]

 The conventional membrane separation unit is, for example, as shown in FIG. 4 (a), and has a structure in which it is immersed in the reaction tank and arranged. In FIG. 4 (a), the main casing 1 is formed of an upper casing 1a and a lower casing 1b, and the inside of the main casing 1 is directed from the lower opening of the lower casing 1b to the upper opening of the upper casing 1a. The raw water 2 in the tank is configured to flow.

Inside the upper casing 1 a, a plurality of membrane modules 3 are arranged by inserting the membrane surfaces along the vertical direction while forming an appropriate gap between the membrane surfaces of the respective membrane modules 3. An air diffuser 5 for aerating the air 4 is arranged inside the lower casing 1b.

As shown in FIG. 4 (b), each membrane module 3 is a filter plate 6 whose front and back are covered with a filtration film 7 such as an ultrafiltration membrane or a microfiltration membrane. A permeated liquid flow path 8 is provided in the above, and a gap forming material 9 such as a non-woven fabric for forming a flow path is interposed between the filter plate 6 and the filtration membrane 7.

As shown in FIG. 5, the permeate flow path 8 of each membrane module 3 is connected to the suction tube 11 by a tube 10 in a state of being inserted into the main body casing 1, and the tube 10 of each membrane module 3 is It is formed so as to be detachable from the suction tube 11.

[0006]

[Problems to be solved by the device]

 However, in the above-described conventional configuration, the membrane separation unit requires periodic maintenance in order to remove the cake layer adhering to the membrane surface of the membrane module 3. At that time, it is necessary to remove each tube 10 of each membrane module 3 from the suction pipe 11 before pulling out the membrane module 3 from the main body casing 1. The work was troublesome.

The present invention solves the above problems, and an object of the present invention is to provide a structure of a membrane separation unit capable of easily attaching and detaching a membrane module to and from a main body casing.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a structure of a membrane separation unit in which a plurality of membrane modules are arranged in the main body casing in parallel with each other with appropriate gaps. A suction port that communicates with the channel is provided, and a suction port that communicates with the permeate flow path inside is provided in the membrane module so as to face the suction port, and the suction port and the suction port can be detachably fitted. It has a structure formed into a composite structure.

[0009]

[Action]

 With the above configuration, the permeate flow path of the membrane module and the suction flow path of the main body casing are connected simply by inserting the membrane module into the main body casing and fitting the suction port of the membrane module into the suction port of the main body casing. It

Further, when removing the membrane module from the main body casing, simply by pulling out the membrane module, the suction port is separated from the suction port of the main body casing, and the permeate liquid flow path of the membrane module and the suction flow path of the main body casing are blocked. It

Therefore, when attaching or detaching the membrane module to or from the main body casing, the membrane module can be attached or removed without the cumbersome attachment / detachment operation of the tube that connects the permeate flow passage of the membrane module and the suction passage of the main body casing as in the conventional case. By simply inserting and removing it, the permeate flow path of the membrane module and the suction flow path of the main body casing can be connected / blocked, and maintenance work can be performed easily.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 3, a plurality of guide grooves 23 for inserting the membrane module 22 are provided in a comb shape on the inner surface of the main body casing 21, and the guide grooves 23 extend vertically and are adjacent to each other. A predetermined gap is formed between the mutual guide grooves 23. On both sides of the upper part of the guide groove 23, a step portion 24 is formed which is recessed along the surface direction of the membrane module 22, and a suction port portion 25 is opened on a bottom surface 24 a of the step portion 24. The suction port portion 25 communicates with a suction flow passage 26 provided in the main body casing 21.

As shown in FIG. 3, the membrane module 22 is obtained by adhering a filtration membrane 28 to the front and back of a filter plate 27, and has a permeate flow channel 29 inside. The filtration membrane 28 is formed by forming an ultrafiltration membrane on the surface of a nonwoven fabric. Further, ears 30 protruding laterally are provided on both sides of the upper part of the membrane module 22, and the ears 30 are formed so as to be engaged with the step 24 of the guide groove 23. The lower surface 30a of the ear portion 30 that abuts the bottom surface of the step portion 24 is provided with a suction port portion 31 that is detachably fitted to the suction port portion 25, and the suction port portion 31 is connected to the permeate flow passage 29 of the membrane module 22. It is in communication.

Further, if necessary, the membrane module 22 is fixed to the main body casing 21 by the fixing bolts 33 via the pressing frame 32. The operation of the above configuration will be described below. At the time of mounting, by simply inserting the membrane module 22 into the main body casing 21 along the guide groove 23, the membrane module 22 can be arranged at a predetermined position with an appropriate gap. Moreover, the guide groove 23 guides the suction port portion 31 of the membrane module 22 to the position facing the suction port portion 25 of the main body casing 21, so that the suction port portion 31 and the suction port portion 25 are smoothly moved at the same time when the membrane module 22 is inserted. , And the permeate flow channel 29 of the membrane module 22 and the suction flow channel 26 of the main body casing 21 are connected.

Further, when removing the membrane module 22 from the main body casing 21, only by pulling out the membrane module 22, the suction port 31 is separated from the suction port 25 of the main body casing 21, and the permeate flow passage 29 of the membrane module 22 is removed. The suction flow path 26 of the main body casing 21 is blocked.

Therefore, the membrane module 22 is inserted / removed along the guide groove 23 without the cumbersome attachment / detachment operation of the tube that connects the permeate passage of the membrane module and the suction passage of the main body casing as in the conventional case. The permeate flow path 29 of the membrane module 22 and the suction flow path 26 of the main body casing 21 can be connected / disconnected only by this, and maintenance work can be easily performed.

In the present embodiment, the membrane module 22 is provided with the ear portion 30 and the ear portion 30 is provided with the mouthpiece portion 31. However, the position where the mouthpiece portion 31 and the suction mouth portion 25 are provided is shown. Is not limited to the one described above, and the suction port 31 may be provided at the lower edge portion or the side edge portion of the membrane module 22, and the suction port portion 25 is located at a position facing the suction port portion 31. It should be provided.

[0018]

[Effect of device]

 As described above, according to the present invention, since the suction port portion provided on the membrane module and the suction port portion provided on the main body casing are fitted, it is only necessary to insert / remove the membrane module when attaching / detaching the membrane module to / from the main body casing. It is possible to connect / disconnect the permeate flow path of the membrane module and the suction flow path of the main casing, and maintenance work can be easily performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a membrane separation unit according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the membrane separation unit according to the embodiment.

FIG. 3 is a vertical cross-sectional view of the membrane module in the example.

4A and 4B are perspective views of a conventional membrane separation unit and a membrane module, respectively.

FIG. 5 is a perspective view showing a main part of a conventional membrane separation unit.

[Explanation of symbols]

 21 Main Body Casing 22 Membrane Module 23 Guide Groove 24 Step 25 Suction Port 26 Suction Channel 27 Filter Plate 28 Filter Membrane 29 Permeate Flow Channel 30 Ear 31 Suction Port

Claims (1)

[Scope of utility model registration request] 1. In a structure of a membrane separation unit in which a plurality of membrane modules are arranged in parallel in the vertical direction in a main body casing with a proper gap, a suction flow passage and a suction port portion communicating with the suction flow passage are provided in the main casing. The membrane module is provided with a suction port portion that communicates with an internal permeate flow path, facing the suction port portion, and the suction port portion and the suction port portion are formed in a detachable fitting structure. Structure of membrane separation unit.