JPH0857272A - Separation membrane module - Google Patents

Abstract

PURPOSE: To easily repair a separation membrane module by replacing a piping connection nozzle when the nozzle is destructed in the separation membrane module wherein a separation membrane is inserted in a case having a fluid entrance and exit at least at one place, by fixing the piping connection nozzle to the fluid entrance and exit of the case in a detachable manner. CONSTITUTION: In a separation membrane module wherein a separation membrane is inserted in a case 1 having a fluid entrance and exit at least at one place, a piping connection nozzle 3 is fixed to the fluid entrance and exit 2 of the case 1 in a detachable manner. The piping connection nozzle 3 is fixed to the case 1 of the separation membrane module by a flush screw bolt 4 and liquidtight sealing is performed by an O-ring 5 or a packing. That is, even when the nozzle 3 is destructed or becomes impossible to use by any cause, the separation membrane module can be easily and certainly repaired by the replacement of the nozzle 3. Therefore, the main body part of the expensive separation membrane module can be used as it is.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separation membrane module, and a pipe connection nozzle having a large degree of damage by increasing the reliability of connection between a fluid inlet / outlet provided in a case of the separation membrane module and the pipe connection nozzle. The present invention relates to a separation membrane module that is detachable, facilitates repair of the separation membrane module, and enables reuse of the separation membrane module body.

[0002]

2. Description of the Related Art In recent years, separation membrane modules have been used in various fields. For example, in the field of water purification, conventional coagulation-type modules have been used.
Application as a new technology to replace the water purification system that undergoes precipitation-sand filtration-chlorine sterilization process, in the field of foods for the concentration or clarification of coffee, tea, fruit juice, or in the fields of biotechnology, enzymes, and pharmaceuticals. In the field of electronics, such as the production of sterile pyrogen-free purified water, it is used for reuse of wafer polishing wastewater.

[0003]

However, although the case body of the separation membrane module is strong and is not easily damaged, the fluid inlet / outlet nozzle integrally formed with the case is generally damaged from the case because it protrudes from the case. Cheap. Moreover, the separation membrane module has become larger due to the expansion of its application, and its weight has become heavy, and it is easily damaged during the installation operation. Further, such a separation membrane module is generally used under pressure, and if it is improperly handled and a part of the case is damaged, it may fail to function. To cope with such a situation, a joint is inserted between the nozzle of the case of the separation membrane module and the pipe of the apparatus, but the joint requires a certain length, which impairs the compactness of the apparatus. In addition, the connection part of the nozzle with the joint may be destroyed.

Separation membrane modules are generally expensive and, if damaged, are expensive. In addition, since it takes time to purchase a substitute, it is disadvantageous that the device using the separation membrane module must be stopped during this period. Under such circumstances, there has been earnestly desired to develop a reliable separation membrane module which can easily cope with a partial breakage of the pipe connecting nozzle of the separation membrane module and can maintain the separation performance which is the original function.

[0005]

In view of the above situation, the inventors of the present invention have made earnest studies on the nozzle portion of the case of the separation membrane module having the separation membrane inserted, and found that the pipe connection nozzle has a specific connection method and shape. The present invention has been completed by finding that the above problems can be solved by making it removable.

That is, according to the present invention, in a separation membrane module in which a separation membrane is inserted in a case having a fluid inlet / outlet at least at one place, a pipe connecting nozzle is detachably fixed to the fluid inlet / outlet of the case. The present invention provides a separation membrane module characterized by: Further, the invention provides the separation membrane module characterized in that the pipe connection nozzle is fixed to the case of the separation membrane module with a screw bolt, and the liquid-tight seal is sealed with an O-ring or packing. . Further, the present invention provides the separation membrane module, wherein the pipe connection nozzle is fixed to the case of the separation membrane module by being screwed into the case with a taper screw. Further, the shape of the pipe connection nozzle of the pipe connection side is a shape that can be connected with a screw or a clamp type seal joint, and the main material of the pipe connection nozzle is synthetic resin. A separation membrane module according to any one of the above is provided. Further, the separation membrane inserted into the separation membrane module is a hollow fiber membrane, and the separation membrane module according to any one of the above is provided. Hereinafter, the present invention will be described in detail.

The separation membrane module case that can be used in the present invention has at least one through hole for allowing fluid to flow in and out of the case, and the shape of the case may be cylindrical or polygonal. The columnar shape is not particularly limited. FIG.
In the above, a cylindrical case that can be used in the present invention and has two through holes for entering and exiting a fluid, that is, a case where there are two inlets and outlets for the fluid is illustrated, but the present invention is not limited to this.

In the case of the separation membrane module of the present invention,
A pipe connection nozzle that serves as a passage for the raw stock solution or the separation membrane permeate is attached to the inlet and outlet of the fluid. It is preferable that the shape of the pipe connection nozzle is such that connection to the case of the separation membrane module is easy and reliable. For example, as shown in FIGS. 1-2 to 4, the fluid inlet / outlet of the case of the separation membrane module and the pipe connecting nozzle 3 are fixed by placing the pipe connecting nozzle of the present invention on the fluid inlet / outlet and arranging the pipe connecting nozzle in front of the pipe connecting nozzle. By fixing several flat head screw bolts 4 to the inlet and outlet of the fluid, the O-ring 5
Liquid-tight seal using. This separation membrane module can be attached / detached for replacement of the pipe connection nozzle by untightening the flat head screw bolt (Fig. 1-2).
(Figure 3). Further, in the present invention, the pipe connecting nozzle and the fluid inlet / outlet may be fixed by cutting the taper screw 9 on the pipe connecting nozzle itself (FIG. 4). In addition,
The size of each of these pipe connection nozzles is the same as the nozzle portion of the case of the conventional separation membrane module.

On the other hand, the pipe connecting nozzle according to the present invention is
It is preferable that the structure is such that it can be attached to other separation membrane modules or other pipes easily and reliably. The shape of such a pipe connection nozzle is illustrated in FIGS. 1-2 to 4. For example, the connection on the pipe side of the pipe connection nozzle 3 can be made flat as shown in FIG. 1 (FIG. 1), and in FIG. 2, it is a ferrule as a clamp type seal joint, and in FIG. 3 it is a clamp type. As the seal joint, a shape that facilitates connection with a V-band coupling is illustrated. If the pipe connection nozzle that is most likely to break due to a handling problem breaks, you can easily remove it for replacement of the pipe connection nozzle, making it easy to repair the separation membrane module and compatible with the pipe connection nozzle. By providing the property, it is possible to make a connection by ferrule, a connection by V band coupling, or the like.

Any material can be used for the case of the separation membrane module and the pipe connecting nozzle applicable to the present invention as long as it is resistant to the treatment liquid. For example, FRP, polysulfone, PVC, polycarbonate, nylon, acrylic, fluorine group containing resin, polyimide, AS, AB
A synthetic resin material such as S, polypropylene, or polyethylene, or an inorganic material such as stainless steel, ceramic, or glass can be used.

In the present invention, the material of the pipe connecting nozzle is preferably the above-mentioned synthetic resin material. Synthetic resins are generally inexpensive, and are softer and more fragile than inorganic materials. Therefore, for example, when an excessive force is applied to the case of the separation membrane module to which the pipe connection nozzle is fixed, the pipe connection nozzle is destroyed and the case is not fatally damaged. The separation membrane module itself can be reused only by replacing the pipe connection nozzle, which is advantageous in terms of cost. In addition, when an inorganic material such as stainless steel is used as the material of the pipe connecting nozzle, it is advantageous that the pipe connecting nozzle is less damaged. If the pipe connecting nozzle and the stainless steel of the pipe are burned together, the separation membrane module can be used as it is by exchanging the pipe connecting nozzle.

The separation membrane module that can be used in the present invention may have any shape. For example, a hollow fiber type membrane module, a spiral type membrane module, a pleated type membrane module, a tubular type membrane module and the like can be mentioned. Among them, in particular, the hollow fiber membrane module is most suitable for applying the present invention because the case is often provided with a fluid inlet / outlet portion due to the structure of the membrane module and compactness is required.

The size of the separation membrane module that can be used in the present invention is not particularly limited. In the present invention, the separation membrane module has a weight of, for example, 20 kg or more and is likely to be damaged when dropped, or the pipe connection nozzle is likely to be damaged due to movement during installation or replacement of the separation membrane module. This is especially effective in the case. Further, it is also effective for a separation membrane module used in a place where severe vibration occurs or where handling is inconvenient.

The separation membrane module of the present invention can be used in fields where conventional separation membrane modules can be used,
There are no particular restrictions on the fields of application. Therefore, for example, application to water purification system, concentration and clarification of fruit juice in the food field,
Production of pyrogen-free purified water in the pharmaceutical field,
In the electronic industry, it can be used for reuse of wafer polishing waste water.

[0015]

According to the separation membrane module of the present invention, since the pipe connecting nozzle is detachably connected to the fluid inlet / outlet portion of the separation membrane module case, which is easily broken, this portion is destroyed by some cause. Even when it cannot be used, the separation membrane module can be easily and surely restored by replacing the pipe connection nozzle. Therefore, the main body of the expensive separation membrane module can be used as it is, and various operations such as installation of the separation membrane module become unnecessary, which is advantageous in terms of cost, time, operability, and the like. Moreover, the connection of the pipe connection nozzle is highly reliable, and the separation performance is not deteriorated.

[Brief description of drawings]

FIG. 1 shows an example of a separation membrane module with a fixed pipe connection nozzle according to the present invention. FIG. 1-1 shows an overall view of the separation membrane module, and FIG.
The enlarged view of the section cut | disconnected by -A 'is shown.

FIG. 2 shows an example of a pipe connection nozzle according to the present invention, in which the pipe side can be connected with a ferrule.

FIG. 3 is a pipe connection nozzle according to the present invention, in which the pipe side is V
An example of a shape that can be connected by a band coupling is shown.

FIG. 4 shows an example of a pipe connection nozzle according to the present invention, which is fixed to a case by cutting a tapered female screw.

FIG. 5 shows an example of a fluid inlet / outlet of a conventional separation membrane module.

[Explanation of symbols]

 1 Separation Membrane Module Case 2 Fluid Inlet / Outlet 3 Piping Connection Nozzle 4 Flat Head Screw Bolt 5 O-Ring 6 Tapered Female Thread 7 Hele Rule Connection 8 V Band Coupling Connection 9 Tapered Female Thread

Claims (5)

[Claims] 1. A separation membrane module in which a separation membrane is inserted in a case having a fluid inlet / outlet at least at one location, wherein a pipe connecting nozzle is detachably fixed to the fluid inlet / outlet of the case. Separation membrane module. 2. The pipe connecting nozzle is fixed to the case of the separation membrane module with screw bolts, and the liquid tight seal is O-.
The separation membrane module according to claim 1, wherein the separation membrane module is sealed with a ring or packing. 3. The separation membrane module according to claim 1, wherein the pipe connection nozzle is fixed to the case of the separation membrane module by screwing into the case with a taper screw. 4. The pipe connection nozzle has a shape on the pipe connection side that can be connected with either a screw or a clamp-type seal joint, and the main material of the pipe connection nozzle is synthetic resin. The separation membrane module according to any one of claims 1 to 3. 5. The separation membrane module according to claim 1, wherein the separation membrane inserted in the separation membrane module is a hollow fiber membrane.