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公开(公告)号：US3438202A
公开(公告)日：1969-04-15
申请号：US3438202D
申请日：1967-10-27
发明人： ROE RALPH C
CPC分类号： C02F1/04 , F01K17/04 , Y02A20/128 , Y10S159/40 , Y10S203/21
摘要： 1,248,436. Steam turbine power plant. SALINE WATER CONVERSION CORP. Oct.23, 1968 [Oct.27, 1967], No. 50323/68. Heading F1Q. [Also in Division B1] Salt water, e.g. sea water, is pumped through line 42 and the tubes 46 of condenser 36 in which the steam exhaust from low-pressure turbine 12 is condensed; and the steam-condensate is pumped from line 38 through nozzles 68 into a multi-stage flash evaporator wherein it contacts and condenses the vapours evolved from heated salt water flowing through narrow downflow channels 62. Part of the fresh water withdrawn from the top condenser region 66a is passed through line 80, de-aerating tank 26 and heater 22 to the boiler 16 which supplies steam to high-pressure turbine 10. The remainder of the fresh water from condenser region 66a is withdrawn from the system as product. Before being introduced into the flash evaporator, the salt water from tubes 46 is further heated in heaters 48, 50, 52 by steam tapped from low-pressure turbine 12, and the heated water is passed through de-aerator 54 and then introduced into the top-most flash channels 62a. The condensate formed in heaters 48, 50, 52 is passed to condenser 36. Residual brine is discharged from the lower end of the multi-stage evaporator. The exhaust from the H.P. turbine 10 is passed through moisture separator 30 and re-heater 32, and is then introduced in L.P. turbine 12. Re-heater 32 is supplied with steam from boiler 16, and this steam then flows to heater 22 which is also heated by steam tapped from turbine 10. The steam from heater 22 and the moisture from separator 30 are passed into the de-aerating tank 26.
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公开(公告)号：US3471178A
公开(公告)日：1969-10-07
申请号：US3471178D
申请日：1967-04-17
发明人： ROE RALPH C
CPC分类号： F16L23/02 , F16L39/00 , F28F9/162 , F28F9/165 , Y10T29/49373 , Y10T156/16
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公开(公告)号：US3330739A
公开(公告)日：1967-07-11
申请号：US37285864
申请日：1964-06-05
发明人： ROE RALPH C , JOSEPH LICHTENSTEIN
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公开(公告)号：US3501382A
公开(公告)日：1970-03-17
申请号：US3501382D
申请日：1967-02-21
发明人： ROE RALPH C
CPC分类号： F28B1/02 , B01D5/0012 , B01D5/0036 , C02F1/08 , Y02A20/128
摘要： 1,212,252. Surface condensers. SALINE WATER CONVERSION CORP. 20 Feb., 1968 [21 Feb., 1967], No. 8118/68. Heading F2S. [Also in Division B1] A surface condenser intended for use in a desalination plant comprises a chamber through which horizontal tubes extend and on the outside of which tubes a vapour is condensed by a coolant flowing through the tubes, said tubes occupying a volume in the range of 2 to 5% of the total volume of said chamber, and being so arranged that condensate from any one tube falls into a collecting trough thereunder without contacting any other tube. In Fig. 3, a pool 54 of saline water is maintained in a housing 52 and further saline water at a slightly higher pressure is injected into the pool via a tube 50. Some of the injected water flashes into steam on the surface of the pool, whereafter condensation takes place on the surface of the coolant tubes 60a, 60b, 60c, the condensate being collected in troughs 58. Fig. 5 (and Fig. 6) shows part of a multistage flash evaporator and surface condenser, two stages being shown. Each condenser stage includes tubes 112 or 112 1 grouped in sheet metal condensate collecting troughs 104 or 104 1 . Above the open end of each trough is a canopy 110 or 110 1 which prevents impingement on the condenser tubes of unevaporated saline water droplets from the preceding stage. These droplets are diverted by the canopy on to the outer surface of the associated trough 104 or 104 1 whence they flow through passageways 106 or 106 1 between adjacent troughs to a collector tray 120 or 120 1 therebeneath. From each tray are passages 122 or 122 1 packed with a permeable material and in which flash evaporation occurs, the resulting vapour passing to the next lower condenser stage of the system. A further form of combined flash evaporator and surface condenser is described (Fig. 1) in which the condenser tubes are in groups one above the other, separated by a drip deflector baffle (34). In another condenser arrangement described (Fig. 4) a cylindrical shell is divided by transverse partitions (72, 74) into a vapour inlet chamber in communication with two other chambers (78, 79) each containing a set of condenser tubes (80). This arrangement is apparently intended for comparing condenser tubes having different positional arrangements and surface characteristics; e.g. the tubes (80) in one chamber may be made of titanium whilst those in the other chamber may be of a cupro-nickel composition.
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公开(公告)号：US3385770A
公开(公告)日：1968-05-28
申请号：US39726364
申请日：1964-09-17
CPC分类号： D06F39/02 , B01D1/22 , C02F1/08 , Y02A20/128
摘要： 1,076,520. Evaporators, film-type, desalination of water. SALINE WATER CONVERSION CORPORATION. Dec. 22, 1964 [Sept. 17, 1964], No. 51966/64. Heading B1B. Purified water is obtained from saline water by feeding the saline water into reservoir 34 which distributes it into channels 18 formed by vertical plates 16 closely aligned side by side, the upper ends of the plates forming orifices 19 below the water-level in the reservoir and the lower surfaces of the plates being tapered so as to provide outward flaring of the channels 18 in the downward direction whereby smooth flash vaporization takes place from the saline water which flows down the channels and forms liquid films of the lower surfaces of the plates 16; the steam which is evolved condenses on condenser 26, and the purified water is withdrawn through outlet 28. The plates 16 are preferably made of wood or other hygroscopic material. The saline water to be treated is heated to about 102‹F. and introduced through inlet 36 into deaeration chamber 32 which is maintained at a pressure of about 2 psia by pump 39. The degasified saline water flows from chamber 32 into the reservoir 34 whence the water passes through orifices 19 and flows down the widening channels between the plates. The unevaporated brine runs off the bottoms of the plates down fins 22 and collects in troughs 24, from which it is discharged. The outer surfaces of the troughs define diffusion cones 25 through which the steam evolved in channels 18 flows to the condenser chamber 20, where the pressure is about 0.8 psia. Residual air is withdrawn from the condenser chamber via vent 29.
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公开(公告)号：US3324012A
公开(公告)日：1967-06-06
申请号：US28740963
申请日：1963-06-12
发明人： ROE RALPH C , JOSEPH LICHTENSTEIN
CPC分类号： B01D3/14 , C02F1/08 , Y02A20/128 , Y10S159/17
摘要： 1,040,781. Distillation apparatus; production of potable water from saline water. SALINE WATER CONVERSION CORPORATION. March 19,1964 [June 12,1963], No. 11608/64. Heading B1B. Pure solvent is recovered from solutions, e.g. potable water is produced from sea water and other sources of impure water, by passing the solution through a heater and feeding the warmed liquid through pipe 16 to the head of a vertical cylinder 76 filled with packing material such as Raschig rings, pieces of broken stoneware or steel wool, where the pressure-conditions in the free space of the packing are maintained such that diffusion-vaporization of some of the solvent occurs from the solution as it flows down over the packing in the form of a film; the vapours pass through apertures 94 and are condensed on cooling- coils 98 disposed in stages 91 formed by plates 86 extending between the packed column and the housing 82. The condensate flows out of each stage via a liquid-seal and then flows into the next lower stage, e.g. the condensate flows from stage 91a to stage 91b via pipe 112 and annular passage 116. The transfer-pipes between the other stages are not shown for they are staggered in a spiral-like manner around the housing. The total condensate is withdrawn from the last stage 91e via outlet 68 by a wet pump. The residual non-evaporated solution flows out of the bottom of the packed-column through openings 80 into sump 95. Non-condensable gases are withdrawn from each stage through a needle-valve each of which leads to a common vent pipe, the lower end of this pipe being connected to the wet pump. The liquid-to-be-distilled is preheated by passing it through the cooling coils in series where it acts as coolant, the liquid being introduced into the coils through inlet 64 and withdrawn through outlet 66. The liquid is then further heated, e.g. by an electric immersion heater, before it is fed to the packed column. The residual solution withdrawn from sump 95 through outlet 53 may be recirculated to the system, if desired after passing it through an air-cooler. The purification of sewage effluent is mentioned.
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公开(公告)号：US3529662A
公开(公告)日：1970-09-22
申请号：US3529662D
申请日：1967-11-13
发明人： ROE RALPH C
CPC分类号： C02F1/08 , F28B1/02 , F28B9/08 , Y02A20/128 , Y10S165/201
摘要： 1,212,430. Surface condensers; tubular heat exchange elements. SALINE WATER CONVERSION CORP. 5 Nov., 1968 [13 Nov., 1967], No. 52343/68. Heading F4S. [Also in Division B1] A surface condenser unit 10 for the recovery of fresh water from saline water comprises two condenser regions 22 each containing a plurality of horizontal condenser tubes arranged in two triangular sets viz. 30a-30c and 31a-31c, the tubes in each set being in vertical disalignment to prevent condensate from one tube dripping down on to another tube of the same set. In operation saturated saline water from a reservoir 12 flows down through evaporation channels 20 wherein part of the saline water is vaporized, said vapour being condensed on the surface of the condenser tubes through which liquid coolant 32 from an external source (not shown) is passed; the fresh water formed is collected in troughs 40 at the bottom of U- shaped separator elements 26. Unevaporated saline water is collected in a trough 36. An upper baffle 28 is placed above the tubes to deflect liquid droplets to the sides of the condenser region. An intermediate baffle 34 deflects condensate from the upper tube set to the sides of the lower tube set. As shown the surface of each tube is streamlined in the direction of condensate flow to provide a sharp longitudinal edge or fin on the bottom of the condenser tube. This edge may be serrated as at 50 in Fig. 8. In an alternative form (Fig. 5, not shown) a separate straight ribbon fin may be added to a circular tube. In another form a tube of teardrop-shaped cross-section (Figs. 4 and 7, not shown) may be employed. To increase heat transfer each condenser tube may be provided with internal fins (52, Figs. 6, 7, not shown).
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公开(公告)号：US3508608A
公开(公告)日：1970-04-28
申请号：US3508608D
申请日：1968-04-17
发明人： ROE RALPH C
CPC分类号： C02F1/043 , F28B1/02 , F28F1/42 , F28F1/422 , Y10S165/913 , Y10T428/24744
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