摘要:
A slip-on type pipe joint wherein a ringlike seal packing is mounted in an annular recess formed in the inner peripheral surface of the socket end of one pipe and the spigot of another pipe is inserted, whereby the pipes are connected together. The pipe joint is characterized in that the inner peripheral surface of the socket is formed with an engagement projection projecting toward the axis of the pipe and disposed adjacent the inner side of the packing, a split lock ring axially engageable with the engagement projection is fitted in an annular groove formed in the outer peripheral surface of the spigot, and the opposed free ends of the split lock ring are joined together by a coupling piece placed on the lateral surface of the split lock ring disposed adjacent the front end side of the spigot to prevent the split lock ring from slipping off the annular groove.
摘要:
There is provided a tubular connector or the like comprising a socket like means and an annular elastic sealing member to be fitted into the socket in pressing contact with the inner peripheral surface thereof. To assist in the assembly of the sealing member internally of said socket the socket and sealing member is each provided with a plurality of marks spaced apart circumferentially thereof in corresponding relation to the other. The sealing member is fitted into the socket by inserting the sealing member into the socket with the marks on the sealing member set to the corresponding marks on the socket and pressing any slack portions or depressed portions of the member against the socket radially inwardly peripheral surface, whereby the sealing member is secured in uniform pressing contact with the said socket inner surface over the entire outer periphery of the sealing member. Alternatively the sealing member can be temporarily pressed against the socket by fastening them together by clamps at the positions where the marks are matched as above, followed by further clamping the resulting assembly at an unfastened portion by means of another clamping device possessing clamping rollers, the said device is moved arcuately with respect of said assembly.
摘要:
A slip-on type pipe joint including a socket, a spigot and an annular rubber packing disposed on the inner periphery of the socket at an axially intermediate portion thereof and compressible by the outer periphery of the spigot against the inner periphery of the socket to seal the clearance between the socket and the spigot with its restoring force. The joint further comprises an engaging member detachably attached to the inner periphery of the socket at its open end and radially inwardly projecting from the periphery, a protrusion formed on the outer periphery of the spigot and positioned between the packing and the engaging member, and a split lock ring disposed between the protrusion and the engaging member and fitting around the spigot with a diametrically contractive force. The lock ring is engageable with the engaging member and with the protrusion to prevent the spigot from slipping off the socket. For the fabrication of the joint, the packing is checked for proper installation with a gauge, with the spigot inserted in the socket, and the lock ring and the engaging member are thereafter set in position.
摘要:
A slip-on type pipe joint construction wherein an annular sealing rubber packing is fitted in an annular recess formed in the inner peripheral surface of the socket of a pipe and the spigot end of another pipe is inserted in the socket, whereby the pipes are connected together. The shapes and sizes of the packing and annular recess are controlled so as to assure firm connection without the danger of the packing dragged during insertion of the spigot even in the case of large and medium diameter pipes. Further, in some cases a split lock ring engageable with a projection on the inner peripheral surface of the socket is fitted in an annular groove in the outer peripheral surface of the spigot so as to prevent slipping-off of the spigot.
摘要:
In an aeration apparatus according to the present invention, water-repellent treatment is applied at least to one of an opening and vicinity thereof of a slit 12 formed in a diffuser membrane of an aeration nozzle, thereby providing a water-repellent layer 150, so that the inflow of seawater into the slit 12 is prevented and precipitation of calcium sulfate or the like in the slit is suppressed and avoided. As a material for forming the water-repellent layer 150, for example, a talc coating layer using talc, a fluorine coating layer coated with a fluorine resin, silicone coating layer coated with a silicone resin, and a wax coating layer coated with wax can be mentioned.
摘要:
An aeration apparatus is immersed in diluted used seawater (not shown) which is water to be treated and generates fine air bubbles in the diluted used seawater. The aeration apparatus includes: an air supply line L5 for supplying air 122 through blowers 121A to 121D serving as discharge unit; aeration nozzles 123, each of which includes a diffuser membrane 11 having slits and to which air containing moisture is supplied; and a control unit for performing control to temporarily stop supply of the air 122 at predetermined intervals.
摘要:
Fluid separation method and apparatus for simultaneously carrying out dialysis and ultrafiltration and exactly controlling the ultrafiltration rate is disclosed. The method and apparatus is concerned with a dialysis system comprising the combination of a fluid separating device; one or more units for dialysate each unit, each unit comprising a pair of dialysate chambers separated by at least one partition which is movable or transformable while keeping the over-all volume of a pair of dialysate chambers constant; a variable speed dialysate feed pump; a variable speed dialysate discharge pump; and other devices e.g. monitoring devices.Fresh dialysate is fed from one of the dialysate chambers into the dialysate inlet of the fluid separating device; separation treatment is carried out through the semi-permeable membrane of the fluid separating device; waste dialysate is discharged from the dialysate outlet of the fluid separating device into the dialysate chamber and the over-all volume of this closed circuit is maintained constant. The controlled ultrafiltrate is exactly discharged from the closed circuit by an ultrafiltration pump; and a continuous operation is carried out in a plurality of units for exchanging dialysate alternately.
摘要:
A vibratory plate of pulp and chopped carbon fibers mixed uniformly in the paper. The pulp is thoroughly beaten to a degree not higher than 300 cc. of Canadian standard freeness.
摘要:
An aeration apparatus is immersed in diluted used seawater which is water to be treated and generates fine air bubbles in the diluted used seawater. The aeration apparatus includes: an air supply line L5 having branch pipes L5A to L5H for supplying air 122 through blowers 121A to 121D serving as discharge unit; aeration nozzles 123 including diffuser membranes 11 having slits, through which the air 122 is supplied to the aeration nozzles 123 via headers 15 of the branch pipes L5A to L5H; a water tank 140 and a supply pump P1 that are used as water introducing unit for supplying water 141 to the air supply line L5. When pressure loss of the aeration nozzles 123 increases, the aeration apparatus stops introduction of the air 122 and supplies the water 141 into the branch pipes L5A to L5H branched from the air supply line L5.
摘要:
An aeration apparatus is immersed in water to be treated and generates fine air bubbles in the water to be treated. The aeration apparatus includes: an air supply pipe for supplying air through discharge unit; aeration nozzles 123 including an introduction portion for introducing air 122 supplied from an opening 15a of a header 15 in communication with the air supply pipe, and a support body extending from the introduction portion and covered with a diffuser membrane having slits for discharging the air 122 to the outside; water introducing unit for introducing water into the header through the air supply pipe; and an atomizing unit 25 for atomizing the introduced water 141 with the aid of the air 122 supplied from the opening 15a of the header. Water mist 141a atomized by the atomizing unit 25 passes through the slit and is discharged to the outside together with the air 122.