JP2006082034A - Structure for connecting header to filter membrane module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for connecting a header to which a filter membrane module can be easily installed and changed even in a small space. <P>SOLUTION: Short pipes 9 arranged in predetermined pitches are slidably supported to a supporting frame 12 by a supporting member 13, joint pipes 6 having at least three-way opening end parts are arranged between the short pipes 9, and the opening end parts of the short pipes 9 and the opening end parts of the joint pipes 6 are connected by connecting members 8 rotatably and replaceably in a sealing manner. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a header connection structure for connecting branch pipes of a plurality of filtration membrane modules arranged side by side.

  Conventionally, as a header connection structure for connecting branch pipes of a plurality of filtration membrane modules arranged side by side, Japanese Patent Application Laid-Open No. 2003-334429 (Patent Document 1), Japanese Translation of PCT International Publication No. 5-508801 (Patent Document 2), etc. Proposed.

JP 2003-334429 A JP 05-508801 JP

  In the above-mentioned conventional example, it is assumed that a plurality of filtration membrane modules arranged side by side are installed in a relatively large installation place such as a factory, so a sufficient work space is secured for replacement work of clogged filtration membrane modules. The header connection structure is assumed to be used.

  Recently, however, there are cases where multiple filtration membrane modules are installed in parallel on the back of seats of transport aircraft engaged in humanitarian assistance activities in affected countries. Once installed, filtration is performed in a narrow place that is difficult to reach. Since a membrane module may be installed, there is a demand for a header connection structure in which a filtration membrane module can be easily installed and replaced in a narrow place.

  The present invention solves the above-mentioned problems, and an object of the present invention is to provide a header connection structure in which a filtration membrane module can be easily installed and replaced even in a narrow place.

  In order to achieve the above object, a first configuration of a header connection structure of a filtration membrane module according to the present invention is a header connection structure that connects branch pipes of a plurality of filtration membrane modules arranged in parallel, and has a predetermined pitch. A plurality of short pipes that are arranged and open at both ends, and a joint pipe that has at least three open ends, and two of the open ends are arranged between the short pipes; A first of the plurality of short pipes that can connect the open ends of the short pipes adjacent to each other and the two open end parts of the joint pipe so as to be rotatable and detachable. A coupling member; a branch pipe end connected to the filtration membrane module; and a second coupling member capable of detachably coupling the other opening end of the joint pipe so as to be rotatable and sealable. It is characterized by.

  Moreover, the 2nd structure of the header connection structure of the filtration membrane module which concerns on this invention has a holding member which hold | maintains the said short pipe or the said joint pipe | tube movably with respect to a support frame in the said 1st structure. Features.

  Moreover, the 3rd structure of the header connection structure of the filtration membrane module which concerns on this invention is a said 2nd structure. WHEREIN: The said holding member hold | maintains the said short pipe or the said joint pipe | tube in the said support frame via an elastic member. It is characterized by that.

  The fourth configuration of the header connection structure of the filtration membrane module according to the present invention is the first configuration, wherein the first connecting member is disposed on both sides of the short pipe and connected to one joint pipe. The first cap nut, the first packing cover, and the first packing that are sequentially fitted to the outer periphery of the other end of the first pipe, and the outer periphery of the other joint pipe that is disposed on and connected to both sides of the short pipe. It has a second cap nut, a second packing cover and a second packing to be fitted, and the first and second cap nuts are screwed into thread grooves formed at both ends of the short pipe. It is configured to be fastened.

  Further, a fifth configuration of the header connection structure of the filtration membrane module according to the present invention is that, in the first configuration, the first connecting member is disposed on both sides of the joint tube and connected to one short tube. The first cap nut, the first packing cover, and the first packing that are sequentially fitted to the outer periphery of the other end of the joint tube, and the end outer periphery of the other short tube that is arranged and connected to both sides of the joint tube The second cap nut has a second cap nut, a second packing cover, and a second packing to be fitted, and the first and second cap nuts are screwed into thread grooves formed at both ends of the joint pipe. It is configured to be fastened.

  According to a sixth configuration of the header connection structure of the filtration membrane module according to the present invention, in the first configuration, the first connecting member is fitted to the outer periphery of the end portion of the short tube and the joint tube. A packing and a packing cover that press-fits the packing to the outer peripheral surfaces of the ends of the short pipe and the joint pipe and that can be fitted into grooves formed at the ends of the short pipe and the joint pipe. And

  According to the first configuration of the header connection structure of the filtration membrane module according to the present invention, the joint pipe is detachably attached between the short pipes arranged at a predetermined pitch, and the filtration membrane module is attached to the joint pipe. Since the branch pipe is detachably attached and can be rotated freely, the angle of the filter membrane module can be freely adjusted, so that the degree of freedom of the posture can be tolerated, and the filter membrane module can be easily installed and replaced even in a narrow place. I can do it.

  Further, according to the second configuration of the header connection structure of the filtration membrane module according to the present invention, the short tube or the joint tube can be held movably with respect to the support frame by the holding member. The filtration membrane module can be easily installed and replaced even in a narrow place by freely moving the posture of the joint pipe.

  Further, according to the third configuration of the header connection structure of the filtration membrane module according to the present invention, the elastic force of the elastic member is obtained by interposing the elastic member when holding the short tube or the joint tube in the support frame. Thus, the short pipe or the joint pipe can be held movably with respect to the support frame. As the elastic member, the short tube or the joint tube may be held on a support frame via a rubber plate or the like, or the short tube or the joint tube may be held on a support frame via a plate spring or a coil spring. Also good.

  Further, according to the fourth configuration of the header connection structure of the filtration membrane module according to the present invention, the cap nut and the packing cover and packing accommodated in the cap nut are fitted on the outer periphery of the end portion of the joint pipe, A cap nut is screwed into a thread groove formed on the outer peripheral surface of both ends of the short tube, and the packing is pressed by the end surfaces of both ends of the short tube and the packing cover, so that the packing is connected to the outer peripheral surface of the end portion of the joint tube. And the opening ends of the short tubes facing each other and the two open ends of the joint tube can be rotatably and detachably connected so as to be sealable. Angle adjustment when attaching and detaching the filtration membrane module can be easily performed, and furthermore, the dimension adjustment between the surfaces can be freely performed, so that the degree of freedom of the posture can be allowed, and the filtration membrane module can be easily installed and replaced even in a narrow place.

  Further, according to the fifth configuration of the header connection structure of the filtration membrane module according to the present invention, the cap nut and the packing cover and the packing accommodated in the cap nut are fitted on the outer periphery of the end portion of the short pipe, A cap nut is screwed into a thread groove formed on the outer peripheral surface of both ends of the joint pipe, and the packing is pressed by the end faces of the both ends of the joint pipe and the packing cover so that the packing is connected to the outer peripheral surface of the end of the short pipe. And the opening ends of the short tubes facing each other and the two opening ends of the joint tube can be rotatably and detachably connected so as to be sealable. Angle adjustment when attaching / detaching the filtration membrane module can be easily performed, and the dimension between the faces can be adjusted freely, allowing freedom of posture, and the filtration membrane module can be easily installed and replaced even in a narrow place.

  Further, according to the sixth configuration of the header connection structure of the filtration membrane module according to the present invention, the packing is fitted over the outer circumferences of the ends of the short pipe and the joint pipe to be connected, and the short pipe and the joint pipe The packing cover is inserted into the groove formed at the end of the pipe, and the packing is pressed against the outer peripheral surface of the end of the short pipe and the joint pipe, so that the opening end of the short pipe and the opening end of the joint pipe are rotatable. In addition, since it can be detachably connected so that it can be sealed, it is easy to adjust the angle when attaching and detaching the filtration membrane module, and furthermore, it is possible to freely adjust the inter-surface dimensions, allowing freedom of posture and easy even in narrow spaces. Filter membrane module can be installed and replaced.

  An embodiment of a header connection structure for a filtration membrane module according to the present invention will be specifically described with reference to the drawings. FIG. 1 is a perspective view showing a configuration of a first embodiment of a header connection structure for a filtration membrane module according to the present invention, and FIG. 2 is a plan view showing a configuration of the first embodiment of a header connection structure for a filtration membrane module according to the present invention. FIG. 3 is a schematic view showing a state in which the first embodiment of the header connection structure of the filtration membrane module according to the present invention is installed at the rear of the seat of the moving body, and FIG. 4 shows the short pipe or the joint pipe with respect to the support frame. FIG. 5 is an exploded perspective view illustrating an example of a connecting member, and FIG. 6 is a cross-sectional explanatory view illustrating an example of a connecting member.

  First, the configuration of the first embodiment of the header connection structure for a filtration membrane module according to the present invention will be described with reference to FIGS. 1 to 3, reference numeral 1 denotes a cross-flow type filtration device that performs filtration while circulating a stock solution, and is equipped with a filtration membrane module 2 that is appropriately adapted for microfiltration or ultrafiltration according to filtration accuracy. The

  In the present embodiment, an example in which the header connection structure of the filtration membrane module according to the present invention is applied to a cross-flow type filtration device that performs filtration while circulating the stock solution will be described. The header connection structure of the filtration membrane module according to the present invention can also be applied to an all-filtration type filtration device that performs filtration by allowing all of the stock solution supplied without circulating through the filtration membrane.

  1 and 3, 3 is a stock supply header for supplying a stock solution to the filtration membrane module 2, 4 is a filtrate discharge header for discharging the filtrate filtered by the filtration membrane module 2, and 5 is a return stock solution. This is a stock solution return header for discharging the liquid.

  Each of the stock solution supply header 3, the filtrate discharge header 4 and the stock solution return header 5 is provided with a joint pipe 6 composed of a T-shaped three-way pipe corresponding to the number of the plurality of filtration membrane modules 2 arranged in parallel. One open end of the joint pipe 6 and an end of an elbow pipe 7 that is a branch pipe connected to the filtration membrane module 2 are connected to each other by a connecting member 8 that is rotatably and sealably detachably connected. The

  Between the other two open ends of the joint pipe 6, a plurality of short pipes 9 having both ends opened are arranged at a predetermined pitch. 9 Open end portions facing each other and two open end portions of the joint pipe 6 are connected to each other by a connecting member 8 so as to be rotatable and detachably connected so as to be sealable.

  In the present embodiment, as an example in which the filtration membrane module 2 is arranged in parallel on one side of each of the stock solution supply header 3, the filtrate discharge header 4 and the stock solution return header 5 arranged on substantially the same plane, a plurality of short tubes The joint pipe 6 arranged between 9 is composed of a T-shaped three-way pipe having three open end portions. However, each of the concentrate supply header 3 and the filtrate discharge header arranged on substantially the same plane. As an example in which the filtration membrane module 2 is arranged in parallel on both sides of the raw material return header 5 and the stock solution return header 5, a cross-shaped four-way pipe having a joint pipe 6 disposed between a plurality of short pipes 9 having four open ends. A plurality of filtration membrane modules arranged in parallel by using joint pipes 6 having at least three open end portions as appropriate according to the arrangement position and the number of the filtration membrane modules 2 arranged in parallel. Connect the two branch pipes It is possible to configure the Dah connection structure.

  FIG. 3 shows an example in which the filtering device 1 is installed in a narrow space between the chassis 10 and the seat 11 of various moving bodies such as automobiles, trucks, helicopters, aircrafts, ships, trains, and trains. As shown in FIG. 4, the support frame 12 provided at a predetermined position of the chassis 10 is provided with a holding member 13 for holding the short tube 9 so as to be freely movable.

  A holding member 13 that holds the short tube 9 movably is fixed to a chassis 10 with a hanging piece 12a of a metal supporting frame 12 having an L-shaped cross section by a bolt 15 and a nut 16, and a horizontal piece 12b of the supporting frame 12 is supported. The short tube 9 is inserted between the semicircular receiving portion 12b1 provided in the cross section and the semicircular holding portion 14a of the rubber holding member 14 serving as an elastic member, and the bolt 15 and the nut 16 are used. Fixed. The short tube 9 is held movably by a rubber pressing portion 14a. By holding the short tube 9 on the support frame 12 through the rubber pressing member 14 serving as an elastic member by such a holding member 13, the short tube 9 is allowed to float on the support frame 12 provided at a predetermined position of the chassis 10. Can be held as possible.

  In the present embodiment, the opening end of the short tube 9 and the two opening ends of the joint tube 6, and further the opening end of the elbow tube 7 serving as a branch tube connected to the filtration membrane module 2 and the joint tube 6. As shown in FIGS. 5 and 6, a connecting member 8 that removably connects the other opening end to a seal and is detachably connected to a pair of packing covers 17 and 18, a short tube 9 to be connected, The joint pipe 6 and the elbow pipe 7 are configured to have a U-shaped packing 19 or the like fitted to the outer periphery of the end portion.

  Groove portions 21 that can be engaged with protrusions 20 provided on the inner peripheral portions of the packing covers 17 and 18 on the outer peripheral surfaces of the short tube 9, joint tube 6, and elbow tube 7 connected by the connecting member 8. As shown in FIG. 6, a packing 19 is fitted on the outer peripheral surfaces of the ends of the short pipe 9, the joint pipe 6 and the elbow pipe 7 to be connected, and is covered from the outside of the packing 19. 17 and 18 are fitted, and the protruding portions 20 of the packing covers 17 and 18 are engaged with the groove portions 21 provided on the outer peripheral surfaces of the ends of the short tube 9, the joint tube 6 and the elbow tube 7 to be connected. Then, the bolts 22 are inserted into the bolt holes 17b, 18b provided in the flange portions 17a, 18a of the packing covers 17, 18 and the nuts 23 are screwed into the bolts 22 to be fastened. Protrusion 20 is outside the end of short tube 9, joint tube 6 and elbow tube 7 to which it is connected. The ribs 19a that are fitted and locked in the grooves 21 provided on the surface and project on the inner wall surfaces of both ends of the packing 19 are pressed against the outer peripheral surfaces of the ends of the short tube 9, the joint tube 6 and the elbow tube 7 to be connected. In this state, the short tube 9, the joint tube 6, and the elbow tube 7 to be connected are connected through a packing 19 so as to be rotatable and detachable so as to be sealable.

  Further, as shown in FIG. 6, the open end portions of the short tube 9, the joint tube 6, and the elbow tube 7 to be connected are sealed by the packing 19 in a state of being separated in a recess 19 b formed at the center of the packing 19. The groove width of the groove portion 21 provided on the outer peripheral surface of the end portion of the short tube 9, the joint tube 6 and the elbow tube 7 to be connected is larger than the width of the protruding portion 20 of the packing covers 17 and 18. In this way, the angle adjustment of the short pipe 9, the joint pipe 6 and the elbow pipe 7 to be connected and the inter-surface dimension adjustment of each opening end can be freely performed.

  The bolt 22 has a hexagonal locking portion 22b for rotation prevention formed in two stages inside the hexagonal head portion 22a for tightening, and a bolt hole 18b comprising a long hole formed in the flange portion 18a of the packing cover 18 is formed. The hexagonal locking portion 22b is fitted and locked to the short-diameter side to prevent the bolt 22 from rotating and prevent the bolt 22 from rotating together when the nut 23 is fastened to the bolt 22.

  In the above-described embodiment, the protruding portions 20 of the packing covers 17 and 18 are fitted into the groove portions 21 provided on the outer peripheral surfaces of the ends of the short tube 9, the joint tube 6 and the elbow tube 7 to be connected. Instead of the groove portion 21 provided on the outer peripheral surface of the end portion of the short tube 9, the joint tube 6, and the elbow tube 7, a convex portion that can be engaged with the protruding portion 20 of the packing covers 17, 18 is connected. Provided on the outer peripheral surface of the end portion of the tube 9, the joint tube 6 and the elbow tube 7, and in the same manner as described above, the packing 19 is fitted on the outer peripheral surface of the end portion of the short tube 9, the joint tube 6 and the elbow tube 7, The packing covers 17 and 18 are fitted so as to cover from the outside of the packing 19, and the protrusions 20 of the packing covers 17 and 18 are connected to the outer peripheral surfaces of the ends of the short tube 9, the joint tube 6 and the elbow tube 7 to be connected. The flange portions 17a and 18 of the packing covers 17 and 18 are engaged with the convex portions provided on the The bolt 22 is inserted into the bolt holes 17b, 18b provided on the screwed a nut 23 on the bolt 22 may be configured to connect fastened.

  In the conventional header connection structure, since each pipe was connected by welding, thermal distortion occurred, and distortion was corrected using a jig to obtain dimensional accuracy. However, according to the present embodiment, there is no connection point by welding. By connecting the short tube 9, the joint tube 6 and the elbow tube 7 with the connecting member 8, the mutual deflection angle and rotation angle of the short tube 9, the joint tube 6 and the elbow tube 7, and the inter-surface dimension adjustment of each opening end portion are adjusted. It can be freely used, and it does not require correction work due to thermal distortion, and high dimensional accuracy is not required, so it is excellent in assembly workability. Therefore, the filtration membrane module 2 can be easily installed or replaced even in a narrow installation space as shown in FIG. Moreover, as shown in FIG.1 and FIG.3, the weight of the standing filter membrane module 2 can be supported.

  In the above embodiment, the short tube 9 is movably held by the holding member 13, but the joint tube 6 may be movably held by the holding member 13. Both of the joint pipes 6 may be held by the holding member 13 so as to be freely movable.

  When the short pipe 9, the joint pipe 6 and the elbow pipe 7 are made of metal pipes, it is advantageous when the filtration device 1 is installed in a moving body such as a helicopter or an aircraft that dislikes flammable materials.

  The material of the short tube 9, the joint tube 6 and the elbow tube 7 is PE (Poly Ethylene), PP (Poly Propylene), PVC (Poly Vinyl Chloride), PA (Polyamide) Resin), POM (Poly Oxymethylene), polysulfone, PES (Poly Ether Sulfones), PTFE (Poly-tetrafluoroethylene), FRP (Fiber Reinforced Plastics), fiber reinforced plastics ), PEEK (Poly Ether Ether Ketone), or a composite material of PVC (polyvinyl chloride) and FRP (fiber reinforced plastic), PE (polyethylene) and FRP (fiber reinforced plastic) Composite material, PP (polypropylene) and FRP (fiber strength) A resin such as a composite material can be used.

  For example, when the short tube 9, the joint tube 6 and the elbow tube 7 are made of PA (polyamide resin), the wear resistance is excellent. Abrasion resistance can be increased by adding molybdenum disulfide, graphite, polyethylene powder, or polytetrafluoroethylene powder. Further, by adding oil to various oil-resistant resins, the wear resistance is several times to 10 times or more that of oil-free plastics. In addition, it is hard to be attacked by hydrocarbon solvents and has particularly strong resistance to gasoline and lubricating oil. The alloy special nylon / PO (polyolefin) alloy improves the heat resistance of PO (polyolefin) in addition to the oil resistance.

  Further, when the short pipe 9, the joint pipe 6 and the elbow pipe 7 are manufactured by POM (polyacetal), they are excellent in fatigue resistance, particularly against repeated impacts. The creep property is also at a sufficiently high level for practical use, is a highly reliable component material, and has excellent moldability. The creep property is a property in which a temporal element is added to the two properties of strength and stiffness, and exhibits excellent shape stability under various temperature and load conditions over a long period of time. In addition, the resistance to repetitive stress is high, and the material is less likely to break due to fatigue. In addition, it is highly resistant to organic chemicals, oils and fats and synthetic detergents, and is hardly affected. Although there are problems with strong acids and strong alkalis, copolymers have relatively good alkali resistance. In addition, since polyacetal causes hydrolysis, its hot water resistance is not good.

  Further, when the short tube 9, the joint tube 6 and the elbow tube 7 are made of polysulfone, the natural color is light amber and transparent and presents an aesthetic appearance. Good workability, easy coloring and filling, and metal plating. It is amorphous and has very little molding shrinkage, low warpage, high dimensional accuracy, and suitable for precision molding. Strong and excellent mechanical properties. Excellent electrical properties over a wide range. Good dimensional stability and creep resistance. It is a material with extremely high heat resistance (combustion test; UL continuous use temperature 15). Excellent hot water resistance to withstand heated steam and boiling water. It is an excellent flame retardant (UL94V-0 to V-2) material.

  Polysulfone undergoes very little change in physical properties due to water, and does not whiten or hydrolyze with hot water or heated steam. High safety, approved by Ministry of Health and Welfare No. 434, 178, other US FDA, NSF, 3-ASSC, and US pharmacy law standards, and many food related and medical device related Used. Withstands many chemicals without being attacked by acids and alkalis. It withstands repeated use in pressurized steam at 132 ° C, which is an autoclave condition.

  Further, when the short tube 9, the joint tube 6 and the elbow tube 7 are manufactured by PES (polyethersulfone), the reliability with respect to a rapid temperature change and the reliability with respect to long-term use at high temperatures are excellent. In terms of heat resistance, H.H. D. T.A. (Heat deformation temperature) is 200 ° C. to 210 ° C., and the rigidity hardly decreases to nearly 200 ° C. Moreover, it has solder resistance. As long-term heat resistance, UL temperature index (heat aging property) is 180 ° C., and the half life of tensile strength at 180 ° C. is 20 years. Even at 200 ° C., there is almost no dimensional change and excellent dimensional stability. Sufficient creep resistance even at 180 ° C. It has excellent electrical characteristics and the characteristics are maintained up to a high temperature range. The flame resistance is UL-94V-0 even at a thickness of 0.5 mm. In addition, the generation of smoke is slight during combustion. Despite its excellent heat resistance, it can be molded sufficiently with ordinary molding machines.

  Incidentally, natural PES (polyethersulfone) is not so good in weather resistance, so it is necessary to add carbon black for outdoor use. Although the water resistance is good, it is slightly water-absorbing and needs to be dried before molding. Since the notch dependence of impact strength is large, a design that avoids sharp notches is necessary.

  In addition, PES (polyethersulfone) has excellent resistance to aqueous chemicals such as hot water, steam, acid, and alkali, as well as oils, grease, gasoline, alcohols, aliphatic hydrocarbons, and the like. It is also resistant to oxidizing agents, and no change is observed even if it is left at 150 ° C. for one month in a 100% oxygen atmosphere. However, as with most organic compounds, it is attacked by concentrated sulfuric acid and concentrated nitric acid. On the other hand, since PES (polyethersulfone) is amorphous, it may be attacked by strong polar solvents such as esters, ketones, and trichlorethylene. The chemical resistance varies slightly depending on the brand of PES (polyethersulfone), and the GF (glass fiber) reinforced brand is considerably superior to the natural brand. Moreover, chemical resistance can be improved by annealing at 200 ° C.

  Further, when the short pipe 9, the joint pipe 6 and the elbow pipe 7 are made of PTFE (polytetrafluoroethylene) which is a fluororesin, the continuous maximum use temperature is extremely high and non-combustion is caused. Excellent low temperature characteristics, chemical resistance, and electrical characteristics. Non-adhesive and flexible resin with excellent mechanical properties. Low friction characteristics with the lowest friction coefficient in solids. Excellent weather resistance. It is extremely inert to organic and inorganic chemicals. In particular, PTFE (polytetrafluoroethylene), PFA (Perfluoroalkoxyethylene), and FEP (Fluoro Ethylene Propylene) have a structure in which F surrounds the C—C bond without a gap. Moreover, since the C—F bond energy is as high as 107 kcal / mol, resistance to chemicals is extremely excellent. Compared to these resins, PCTFE (Poly Chloro Tri Fluoro Ethylene), ETFE (Ethylene tetrafluoroethylene), ECTFE (Ethylene and Chlorotrifluoroethylene; Ethylene) Chlorotrifluoroethylene copolymer), PVDF (Poly Vinylidene Fluoride), etc. are somewhat inferior.

  Next, configurations of the second and third embodiments of the header connection structure of the filtration membrane module according to the present invention will be described with reference to FIGS. 7 and 8 are plan views showing the configurations of the second and third embodiments of the header connection structure of the filtration membrane module according to the present invention, FIG. 9 is an exploded explanatory view showing another example of the connecting member, and FIG. It is sectional explanatory drawing which shows the other example of a connection member. In addition, what was comprised similarly to the said 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.

  In the second embodiment shown in FIG. 7, the connecting member 24 for connecting the opening end of the short tube 9 and the two opening ends of the joint tube 6 so as to be rotatable and detachable is provided as shown in FIG. As shown in FIG. 10, the joint pipe 6 connected to the short pipe 9 is configured to be fitted and press-contacted to the outer peripheral surface of each end.

  As shown in FIGS. 9 and 10, the connecting member 24 of the present embodiment has screw grooves 9 a and 9 b formed at both ends of the short tube 9, and is arranged on both sides of the short tube 9 for connection. The joint pipe 6 has a cap nut 25, a packing cover 26, and a packing 27 that are sequentially fitted on the outer periphery of both ends. As shown in FIG. 27 is accommodated and screw nuts 9a and 9b formed at both ends of the short tube 9 are screwed and fastened, so that the packing 27 is pressed by the packing cover 26 and the end surface 9c of the short tube 9 is pressed. In addition, the short pipe 9 and the joint pipe 6 to be connected are connected to each other through a packing 27 so as to be rotatable and detachable in a sealable manner while being pressed against the outer peripheral surface of the end portion of the joint pipe 6. .

  The packing 27, the packing cover 26, and the cap nut 25 are configured to be fitted to the outer periphery of the end portion of the joint pipe 6 so as to be movable in the axial direction (vertical direction in FIG. 9) on the outer periphery of the joint pipe 6. Note that the outer peripheral surface of the end portion of the joint pipe 6 is configured by a flat circumferential surface.

  9 and FIG. 10, the connecting member 24 is formed by lightly screwing the cap nut 25 into the screw grooves 9a and 9b of the short tube 9 with the packing 27 and the packing cover 26 interposed therebetween in the assembly arrangement order shown in FIGS. The elbow pipe 7 which is a branch pipe connected to the filtration membrane module 2 by moving the joint pipe 6 in the axial direction (vertical direction in FIG. 9) of the connecting member 24 in a state of being fitted to the outer peripheral end of the pipe 6. After the pipe 9 and the joint pipe 6 are aligned, the cap nut 25 is screwed into the thread grooves 9a and 9b, so that the packing cover 26 moves the packing 27 in the inner diameter direction and the end face 9c side of the short pipe 9. The packing 27 is pressed against the outer peripheral surface of the joint tube 6 and the end surface 9c of the short tube 9, and is connected to be connected in a freely detachable manner so as to be rotatable and sealable.

  Further, as shown in FIG. 10, each open end of the joint pipe 6 connected via the short pipe 9 is sealed by a packing 27 in a state of being separated inside the short pipe 9, and the packing With the configuration in which 27 is fitted on the outer periphery of the end portion of the joint pipe 6, the angle adjustment between the short pipe 9 and the joint pipe 6 to be connected and the inter-surface dimension adjustment of each opening end portion can be freely performed.

  On the other hand, the opening end portion of the elbow pipe 7 serving as a branch pipe connected to the filtration membrane module 2 and the other opening end portion of the joint pipe 6 are rotatable and sealed by the connecting member 8 as in the first embodiment. It is connected so as to be detachable.

  By connecting the short tube 9, the joint tube 6 and the elbow tube 7 with such connecting members 8 and 24, the deflection angle and rotation angle of the short tube 9, the joint tube 6 and the elbow tube 7, and each opening end portion The face-to-face dimension can be adjusted freely, and the filtration membrane module 2 can be easily installed or replaced even in a narrow installation space as shown in FIG. Moreover, as shown in FIG.1 and FIG.3, the weight of the standing filter membrane module 2 can be supported. Other configurations are the same as those in the first embodiment, and the same effects can be obtained.

  In the third embodiment shown in FIG. 8, the opening ends of the short pipe 9, the joint pipe 6 and the elbow pipe 7 are connected and connected by the same connecting member 24 as described in the second embodiment. As shown in FIG. 10, a thread groove is formed at the end of the elbow pipe 7, and a cap nut 25 of the connection member 24 is screwed and fastened into the thread groove so that the packing cover 26 of the connection member 24 is connected to the joint pipe 6. The packing 27 fitted to the outer periphery of the end portion is pressed toward the inner diameter direction and the end face side of the elbow pipe 7 so that the packing 27 is pressed against the outer peripheral face of the joint pipe 6 and the end face of the elbow pipe 7, and is rotatable and sealed. It is connected so as to be detachable. Other configurations are the same as those in the above-described embodiments, and the same effects can be obtained.

  Next, the configuration of the fourth embodiment of the header connection structure of the filtration membrane module according to the present invention will be described with reference to FIGS. FIG. 11 is a plan view showing the configuration of the fourth embodiment of the header connection structure for a filtration membrane module according to the present invention, and FIG. 12 is an exploded explanatory view showing another example of a connecting member provided in a three-way pipe. In addition, what was comprised similarly to each said embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.

  In the second embodiment, an example in which screw grooves 9a and 9b are formed at both ends of the short tube 9 and the cap nut 25 of the connecting member 24 is screwed and fastened to the screw grooves 9a and 9b has been described. In this embodiment, as shown in FIG. 12, screw grooves 6a and 6b are formed at both ends connected to the short pipe 9 of the joint pipe 6, and a cap nut 25 of the connecting member 24 is formed in the screw grooves 6a and 6b. Screwed and tightened.

  That is, as shown in FIGS. 11 and 12, the connecting member 24 of the present embodiment has screw grooves 6a and 6b formed at both ends of the joint pipe 6, and is arranged on both sides of the joint pipe 6. The short nut 9 is connected to the outer periphery of both ends of the short nut 9 and is sequentially provided with a cap nut 25, a packing cover 26, and a packing 27. As shown in FIG. The packing cover 26 and the packing 27 are accommodated, and the cap nut 25 is screwed and fastened to the thread grooves 6a and 6b formed at both ends of the joint pipe 6, so that the packing 27 is pressed by the packing cover 26 and joined. In a state where the end surface 6d of the tube 6 and the outer peripheral surface of the end portion of the short tube 9 are in pressure contact, the connected short tube 9 and the joint tube 6 are detachably coupled via the packing 27 so as to be rotatable and sealable. Connected.

  On the other hand, the opening end portion of the elbow pipe 7 serving as a branch pipe connected to the filtration membrane module 2 and the other opening end portion of the joint pipe 6 are rotatable and sealed by the connecting member 8 as in the first embodiment. It is connected so as to be detachable. Other configurations are the same as those in the above embodiments, and the same effects can be obtained.

  Next, the configuration of the fifth embodiment of the header connection structure for a filtration membrane module according to the present invention will be described with reference to FIGS. FIG. 13 is a plan view showing the configuration of the fifth embodiment of the header connection structure for a filtration membrane module according to the present invention, and FIG. 14 is an exploded explanatory view showing another example of a connecting member provided in a three-way pipe. In addition, what was comprised similarly to each said embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.

  In the fourth embodiment, screw grooves 6a and 6b are formed at both ends connected to the short pipe 9 of the joint pipe 6, and the cap nut 25 of the connecting member 24 is screwed into the screw grooves 6a and 6b. In this embodiment, as shown in FIGS. 13 and 14, screw grooves 6a, 6b, 6c are formed at three ends of the joint pipe 6, and the screw grooves 6a, 6b, The cap nut 25 of the connecting member 24 is screwed and fastened to 6c.

  That is, in this embodiment, the open ends of the short pipe 9, the joint pipe 6 and the elbow pipe 7 are connected and connected by the same connecting member 24 as described in the second embodiment. Threaded grooves 6a, 6b, 6c are formed at the three end portions of the connecting member 24, and the cap nut 25 of the connecting member 24 is screwed and fastened to the threaded grooves 6a, 6b, 6c, thereby shortening the packing cover 26 of the connecting member 24. The packing 27 fitted on the outer periphery of the end of the pipe 9 and the elbow pipe 7 is pressed toward the inner diameter direction and each end face 6d side of the joint pipe 6 so that the packing 27 is connected to the outer peripheral surface of the short pipe 9 and the elbow pipe 7 and the joint pipe. 6 is press-contacted to each end face 6d, and is connected so as to be freely rotatable and sealable. Other configurations are the same as those in the above-described embodiments, and the same effects can be obtained.

  FIG. 15 is a plan view showing a configuration of a sixth embodiment of a header connection structure for a filtration membrane module according to the present invention. In this embodiment, the opening end of the short pipe 9 and the opening end of the joint pipe 6 are connected by the connecting member 24 as in the fifth embodiment shown in FIG. 13, and the opening end of the joint pipe 6 and the elbow are connected. The opening end of the tube 7 is connected by the connecting member 24 in the same manner as in the third embodiment shown in FIG. Other configurations are the same as those in the above-described embodiments, and the same effects can be obtained.

  Next, the configuration of the seventh embodiment of the header connection structure for a filtration membrane module according to the present invention will be described with reference to FIGS. FIG. 16 is a perspective view showing the configuration of the seventh embodiment of the header connection structure of the filtration membrane module according to the present invention. FIG. 17 shows the seventh embodiment of the header connection structure of the filtration membrane module according to the present invention. It is a schematic diagram which shows a mode that it installed in the rear part. In addition, what was comprised similarly to the said 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.

  In the present embodiment, an elbow pipe 7 is connected to a part of the three-way pipe of the joint pipe 6 of the stock solution return header 5 by welding, and the stock solution return pipe 2a and the elbow pipe 7 of the filtration membrane module 2 are connected as described above. Connected by the member 8. Other configurations are the same as those in the first embodiment, and the same effects can be obtained.

  As an application example of the present invention, a filtration device is installed in a narrow space between a chassis and a seat seat of various moving bodies such as automobiles, trucks, helicopters, aircrafts, ships, trains, and trains, and a plurality of filtrations arranged in parallel It is applicable to the header connection structure when the membrane module is replaced.

It is a perspective view which shows the structure of 1st Embodiment of the header connection structure of the filtration membrane module which concerns on this invention. It is a top view which shows the structure of 1st Embodiment of the header connection structure of the filtration membrane module which concerns on this invention. It is a schematic diagram which shows a mode that 1st Embodiment of the header connection structure of the filtration membrane module which concerns on this invention was installed in the seat rear part of the moving body. It is an isometric view explanatory drawing explaining the structure of the holding member which hold | maintains a short pipe or a joint pipe | tube movably with respect to a support frame. It is decomposition | disassembly explanatory drawing which shows an example of a connection member. It is sectional explanatory drawing which shows an example of a connection member. It is a top view which shows the structure of 2nd Embodiment of the header connection structure of the filtration membrane module which concerns on this invention. It is a top view which shows the structure of 3rd Embodiment of the header connection structure of the filtration membrane module which concerns on this invention. It is decomposition | disassembly explanatory drawing which shows the other example of a connection member. It is sectional explanatory drawing which shows the other example of a connection member. It is a top view which shows the structure of 4th Embodiment of the header connection structure of the filtration membrane module which concerns on this invention. It is decomposition | disassembly explanatory drawing which shows the other example of the connection member provided in a 3-way pipe. It is a top view which shows the structure of 5th Embodiment of the header connection structure of the filtration membrane module which concerns on this invention. It is decomposition | disassembly explanatory drawing which shows the other example of the connection member provided in a 3-way pipe. It is a top view which shows the structure of 6th Embodiment of the header connection structure of the filtration membrane module which concerns on this invention. It is a perspective view which shows the structure of 7th Embodiment of the header connection structure of the filtration membrane module which concerns on this invention. It is a schematic diagram which shows a mode that 7th Embodiment of the header connection structure of the filtration membrane module which concerns on this invention was installed in the seat rear part of the moving body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Filtration apparatus 2 ... Filtration membrane module 2a ... Stock solution return pipe 3 ... Stock solution supply header 4 ... Filtrate discharge header 5 ... Stock solution return header 6 ... Joint tube 6a, 6b, 6c ... Screw groove 6d ... End face 7 ... Elbow tube 8 ... Connecting member 9 ... Short tube 9a, 9b ... Thread groove 9c ... End face
10 ... Chassis
11 ... Seat seat
12 ... Support frame
12a ... Drooping piece
12b ... Horizontal piece
12b1 ... receiving part
13 ... Holding member
14 ... Presser member
14a ... Holding part
15 ... Bolt
16 ... Nut
17, 18 ... Packing cover
17a, 18a ... Flange
17b, 18b ... Bolt hole
19 ... Packing
19a ... rib
19b ... recess
20 ... Protrusions
21 ... Groove
22 ... Bolt
22a ... Hex head
22b ... Hexagon locking part
23 ... Nut
24 ... Connecting member
25 ... Cap nut
26 ... Packing cover
27 ... Packing

Claims (6)

A header connection structure for connecting branch pipes of a plurality of filtration membrane modules arranged in parallel,
A plurality of short tubes arranged at a predetermined pitch and open at both ends;
A joint pipe having at least three open ends, two of which are arranged between the plurality of short pipes;
A first of the plurality of short pipes that can connect the open ends of the short pipes adjacent to each other and the two open end parts of the joint pipe so as to be rotatable and detachable. A connecting member;
A second connecting member capable of connecting the branch pipe end connected to the filtration membrane module and the other open end of the joint pipe in a freely rotatable and sealable manner;
A header connection structure for a filtration membrane module, comprising: 2. The header connection structure for a filtration membrane module according to claim 1, further comprising a holding member that holds the short pipe or the joint pipe so as to be freely movable with respect to a support frame. The filtration membrane module header connection structure according to claim 2, wherein the holding member holds the short pipe or the joint pipe on the support frame via an elastic member. The first connecting member is
A first cap nut, a first packing cover, and a first packing, which are sequentially fitted to the outer periphery of the end of one joint pipe disposed and connected on both sides of the short pipe;
A second cap nut, a second packing cover, and a second packing, which are sequentially fitted to the outer periphery of the end of the other joint pipe disposed and connected on both sides of the short pipe;
Have
2. The header of a filtration membrane module according to claim 1, wherein the first and second cap nuts can be screwed and fastened into thread grooves formed at both ends of the short pipe. Connection structure. The first connecting member is
A first cap nut, a first packing cover, and a first packing, which are sequentially fitted to the outer periphery of the end of one short pipe disposed and connected on both sides of the joint pipe;
A second cap nut, a second packing cover, and a second packing, which are sequentially fitted to the outer periphery of the other end of the other short pipe disposed and connected on both sides of the joint pipe;
Have
2. The header of the filtration membrane module according to claim 1, wherein the first and second cap nuts can be screwed into thread grooves formed at both ends of the joint pipe. Connection structure. The first connecting member is
A packing fitted to the outer periphery of the end of the short pipe and the joint pipe;
A packing cover that press-fits the packing to the outer peripheral surfaces of the end portions of the short tube and the joint tube, and that can be fitted into a groove formed in the end portion of the short tube and the joint tube;
The header connection structure for a filtration membrane module according to claim 1, wherein:

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