US2596822A - Apparatus for treating water - Google Patents

Apparatus for treating water Download PDF

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Publication number
US2596822A
US2596822A US79389A US7938949A US2596822A US 2596822 A US2596822 A US 2596822A US 79389 A US79389 A US 79389A US 7938949 A US7938949 A US 7938949A US 2596822 A US2596822 A US 2596822A
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United States
Prior art keywords
pipe
valve
pressure
water
diaphragm
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Expired - Lifetime
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US79389A
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English (en)
Inventor
Pick Eric
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Permutit Co
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Permutit Co
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Publication date
Priority to BE494981D priority Critical patent/BE494981A/xx
Application filed by Permutit Co filed Critical Permutit Co
Priority to US79389A priority patent/US2596822A/en
Priority to FR1013600D priority patent/FR1013600A/fr
Application granted granted Critical
Publication of US2596822A publication Critical patent/US2596822A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86389—Programmer or timer

Definitions

  • This invention relates to apparatus for treating water or other aqueous solutions of electrolytes byion exchange in general and especially suited for softening water by cation exchange, and is an improvement on my co-pending application Serial No. 40,528, filed July 24, 1948. V
  • One of the objects of the present invention is toprovide a novel apparatus which is so constructed as not to require a multiplicity of manual valve actuations in itsoperation and use and which at the same time is compact, and inexpensive to manufacture.
  • Another object is to provide for such apparatus diaphragm valves to control the various flows, and pilot valve meansto control the operation of said diaphragm valves,
  • Still another object is to provide a hydraulic suction producing device to control the operation of diaphragm valves.
  • Fig. l is a diagrammatic view, partly in cross section, of one form of my invention showing an ion exchange apparatus in service position;
  • Fig. 2 is a view similar to Fig. 1, but showing a modified apparatus in regenerating position.
  • a tank contains a bed 3
  • On top of the tank 30 is mounted alregenerant chamber 4
  • is a separating plate 36 carryinga collector 31 which'is in communication with a compartment 38 formed between the plate 38. and the bottom 42.
  • a pipe 33 Over the irusto-coni- 2 overflow weir. From the head box 45 a pipe leads to waste.
  • a pipe 52 which is fitted with a small orifice or weep hole 5 I v
  • Flow through the apparatus is controlled by a solenoid valve 54 which in turn, directly or indirectly, controls six diaphragm valves 55, 56, 51, 58. 59 and Referring specifically to the reference numerals on valve 51 of Fig. 1, each of these diaphragm valves has a diaphragm 63 separating a pressure chamber 64 from a valve chamber 65.
  • a central port 56 adapted to be opened and closed by the diaphragm 53, and a lateral port 51 which is always open.
  • a spring 68 is provided in valves 55, 56, 51 and 5
  • a supply pipe 10 has branches connected with the central ports of diaphragm valves 55, 51 and 60 as well as with an ejector 9
  • the outlet nozzle 32 is adapted to discharge into a pipe 12 in communication with'the solenoid valve 54, and the suction'chamber 93 is connected with a branched control pipe system ll which is in communication with the pressure chambers of the diaphragm valves 51, 58, 59 and 60.
  • Another control pipe 14 has branches connected with the latera1 port of diaphragm valve 60, with the pressure chambers of diaphragm valves 55 and ,56 and with an orifice which isarranged to discharge into a pipe '16 having a branch connection with the solenoid valve 54 and leading to the head box 45.
  • the .pipe 33 leading fromthe distributor 32 has branches connected with the lateral port of diaphragm valve 55 and the central port of diaphragm'valve 59.
  • The" pipe 39 leading from the compartment 38 has'two branches, one connected with the lateral port of valve 56 and the other with the central port of valve 58.
  • the pipe 44 leads from thechamber 4
  • Thewaste pipe 55 has a branch in communication with the lateral port of valve 59.
  • a service pipe 18 leading to a point of use has branches connected with the lateral port of valve 51 andthe central'port of valve 56.
  • a time switch is provided to control the-operation of the solenoid valve54.
  • This time switch 80 is advantageously of the type that is normally open and in which a manual turning of the handle closes the switch and at the same time winds the main spring so that the timing mechanism crating position, another hydra'i'ilic' suction producing device is shown in place of the. ejector 90 of Fig. 1.
  • a Venturi tube 95 having an inlet portion 95 connected with the supply pipe 70, an outlet portion 31 connected with pipe 12 leading to the solenoid valve 5 and a throat 98 to which the control pipe system H is connected.
  • the ejector 95 of Fig. l and the Venturitube 95 of Fig. 2 are equivalent suction producing devices which operate in the same way and produce the same result.
  • the time switch 80 In normal operationof the apparatus, as shown in Fig. 1, the time switch 80 is in its, normal or open position, the coil 83 is de-energized and the solenoid valve 54 is closed.
  • the water entering from the supply pipe into the injector 95 (or the Venturi tube 35) therefore finds no outlet through pi e 12 so thatthe full supply pressure is communicated through the suctionchambers 93 (or the throat 98) to the control pipe system H and thence to the pressure chambers of diaphragm valves 51, 58, 59and 65 whereby the diaphragms are forced down, thus closing the central ports.
  • consists of cation exchange material charged with sodium ions. As the water passes through the bed 3
  • regenerant 85 is sodium chloride or common salt whichcomestorest on the screen 43, as shown in Fig. 2.
  • the closingof the timeswitchfill ener izes coil .33.; by establishing an electrical circuitthlql h wires 8 L33. and .84, thereby .open ngthe solenoid valve 54.
  • This opening of valve 54 initiates a flow of water from the supply pipe 10 through the Venturi tube 95 (or injector 90) into the pipe 12, creating sub-atmospheric pressure in the throat 98 (or suction chamber 93) which is communicated to the control pipe system 1
  • valve 55 admits .water from the supply pipe 10 into the controlpipe l4 and since the orifice is substantially smaller than the ports and pas- ,sagesof .valve .60 the pressure within control pipe 'Mrises' tosubstantially the pressure existing in the supply. pipelll and is communicated to the pressure chambers of diaphragm valves 55 and 56,"forcing their diaphragms down to close the central ports. This interrupts the flow of water through the bed 3
  • a stream of water is now discharged through pipe l6 into the head box 45;on' 'p'art coming through Venturi tube 95 (or injector 90), pipe 12 and solenoid valve 54, and the other through diaphragm valve 65, control pipe 74 and orifice F5.
  • the head box. 45 fills up until the level therein reaches that. of pipe 5il,'any further rise in level being prevented by overflow through pipe 58 to waste. From the head box 45 two streams of water are discharged; one'through'the orifice 55 into the chamber A! and the other through orifice ll into pipe 43.
  • the stream flowing through orifice l5 percolates through and dissolves the regenerant 85 resting on screen 43 within chamber' ll, and the practically concentrated regenerating solution thus formed flows into the pipe 44 where it is mixed with the second stream entering through orifice 41 and pipe 48.
  • the solution is thus diluted in a predetermined proportion depending uponthe relative sizes of orifices 45 and 41.
  • the diluteregenerating solution fiows by gravity via pipe 44, diaphragm valve 58 and pipe 39 into compartment '33, thence through the collector 3? and downward through the bed of ion exchange material 3 regenerating it. It then enters the distributor 32 and flows via pipe 33, diaphragm valve 59 and pipe 50 to waste.
  • (or Venturi throat 98) and orifice 15 are so dimensioned that their joint discharge is sufficient throughout the range of water supply pressures normally encountered to supply at least sufficient water to the head box 45 toeffect regeneration andrinsing of the bed 3
  • the rates of flow of water used to make up regenerant solution and to dilute such solution and later to rinse out spent and excess regenerant remain constant so that regenerant concentration and a regenerant contact time are maintained at the values predetermined for greatest efiectiveness, in spite of changing operating pressures.
  • the sizes of the orifices depend, of course, on the size of the apparatus.
  • and the Venturi throat 98 isadvantageously made between /s% and l /2% of the diameter of tank 30.
  • an injector inlet nozzle 1% inch in diameter was found satisfactory for household type water softeners 9 to 12 inches in diameter, the passage in the injector outlet nozzle being twice as large, and the passages in and leading from the pipe 12, including those through the solenoid valve 54, being at 0 least 3 and preferably 4 times greater in diameter.
  • is reduced during regeneration to the order of 15 inches Hg below atmospheric.
  • the diameter of orifice 15 is advantageously between 1% and 4% of the diameter of the diaphragms which it controls, an orifice diameter of 0.04 inch having been found satisfactory in conjunction with a diameter of 2 inches of the diaphragms of valves 55 and 55.
  • valves 55 and 55 also avoids 'scvere water hammer in the supply pipe 10 and the service pipe'l8 on return of the apparatus to the service position.
  • the sizes of orifices 46 and 41 will vary not only with the size ;of tank 3
  • Figs. 1 and 2 may advantageously beembodied in a construction such as that shown'in Figs. 9 to 2 3 of said Pick application Ser.- No. 40,528, and the'app'aratus can be used for ion exchange treatment other than softening, such as cation exchange on the hydrogen cycle ⁇ or anion exchange.
  • r I The switch-for energizing the solenoid valve 54 need, or course, not be of the type shown and described. Instead, other types of switches can be used, operated either manually or automatically.
  • the solenoid valve 54 may, if desired, be replaced by a pilot valve which is opened manually when regeneration is needed and closed when regeneration is completed, either manually orby a spring under control of a mechanical timing device.
  • a water treating apparatus comprising a tank for ion exchange material, a flow connection leading to one end of said tank, another flow connection leading to the other end of said tank, a pressure operated valve in each of said flow connections, each of said valves including a pressure chamber, a hydraulic suction producing dew e' s z n miden zi a dfip snc dya -t ai -5 I wa r.
  • control valve means section producing device having an inlet, 1an outletand a suction connection, said inlet having a permanent connection with said source, the pres- '-'sur chamhers ofsaid third and fourth named aphragm valves having a permanent connection with said suction connection, passage means connesti a O tle i h a point f tmosp ,pressure, other -control valve means in saidpasisas -llmanslax m an o lq ing both s i m nor valve means during normal service and "for opening both said control valve means during si e efipn- 5.
  • Ater treating apparatus comprising a ra mva ii s;passasemeans n ct said dvtc i h i Pressurechambers a abhrc co tr w ive in.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
US79389A 1949-03-03 1949-03-03 Apparatus for treating water Expired - Lifetime US2596822A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE494981D BE494981A (fr) 1949-03-03
US79389A US2596822A (en) 1949-03-03 1949-03-03 Apparatus for treating water
FR1013600D FR1013600A (fr) 1949-03-03 1950-02-06 Perfectionnements aux appareils de traitement de l'eau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79389A US2596822A (en) 1949-03-03 1949-03-03 Apparatus for treating water

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US2596822A true US2596822A (en) 1952-05-13

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US (1) US2596822A (fr)
BE (1) BE494981A (fr)
FR (1) FR1013600A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832373A (en) * 1954-01-22 1958-04-29 Gunner L Scholer Liquid treating unit
US3008486A (en) * 1956-12-17 1961-11-14 Culligan Inc Directional valve for automatic water softeners or conditioners
US3073674A (en) * 1959-12-16 1963-01-15 Bruner Corp Water softening apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1644714A (en) * 1925-07-27 1927-10-11 Duro Co Water-softening apparatus
US1694457A (en) * 1926-09-09 1928-12-11 Duro Co Water-softening apparatus
US1749622A (en) * 1928-03-08 1930-03-04 Clarence B Yount Water-softening apparatus
US1789314A (en) * 1925-06-06 1931-01-20 Trupar Mfg Company Water softener
US1918225A (en) * 1930-06-11 1933-07-11 Andrew J Dotterweich Water softening apparatus
US1937666A (en) * 1931-11-20 1933-12-05 Taylor Instrument Co Regulating apparatus
US1949044A (en) * 1929-08-26 1934-02-27 Automatic Water Softener Compa Water softening apparatus
US2243815A (en) * 1939-05-17 1941-05-27 Clayton Manufacturing Co Water softening apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1789314A (en) * 1925-06-06 1931-01-20 Trupar Mfg Company Water softener
US1644714A (en) * 1925-07-27 1927-10-11 Duro Co Water-softening apparatus
US1694457A (en) * 1926-09-09 1928-12-11 Duro Co Water-softening apparatus
US1749622A (en) * 1928-03-08 1930-03-04 Clarence B Yount Water-softening apparatus
US1949044A (en) * 1929-08-26 1934-02-27 Automatic Water Softener Compa Water softening apparatus
US1918225A (en) * 1930-06-11 1933-07-11 Andrew J Dotterweich Water softening apparatus
US1937666A (en) * 1931-11-20 1933-12-05 Taylor Instrument Co Regulating apparatus
US2243815A (en) * 1939-05-17 1941-05-27 Clayton Manufacturing Co Water softening apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832373A (en) * 1954-01-22 1958-04-29 Gunner L Scholer Liquid treating unit
US3008486A (en) * 1956-12-17 1961-11-14 Culligan Inc Directional valve for automatic water softeners or conditioners
US3073674A (en) * 1959-12-16 1963-01-15 Bruner Corp Water softening apparatus

Also Published As

Publication number Publication date
FR1013600A (fr) 1952-07-30
BE494981A (fr) 1900-01-01

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