US1964704A - Means for preventing and removing boiler scale - Google Patents

Means for preventing and removing boiler scale Download PDF

Info

Publication number
US1964704A
US1964704A US613529A US61352932A US1964704A US 1964704 A US1964704 A US 1964704A US 613529 A US613529 A US 613529A US 61352932 A US61352932 A US 61352932A US 1964704 A US1964704 A US 1964704A
Authority
US
United States
Prior art keywords
preventing
boiler
condensers
current
secondary winding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US613529A
Other languages
English (en)
Inventor
Erenyi Ljudevit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1964704A publication Critical patent/US1964704A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention

Definitions

  • the present invention relates to an apparatus wherein alternating current is led from the secondary side of an alternating current transformer to the anode and cathode of an electron tube, the secondary winding being divided in two parts and the tube being interposed therebetween.
  • the free outer ends of the secondary winding parts are in capacitative connection over condensers of suitable value with the metal containers, boiler or the like to be protected, but
  • the boiler is subjected to the same potential or potential variations as the condensers.
  • the boiler is maintained in the above described electric condition by means of alternating current but without direct current connection.
  • a pulsation is effected with the periodic voltage impulse over the alter- 40 nating current network. If, for instance, the rectifier tube is removed and the parts of thesecondary winding connected together, a passage of current through the entire system will immediately take place, the intensity thereof being dependent on the capacity of the condensers. Passage of current through the boiler is rendered impossible by condensers of proper capacity by the action of the rectifying tube. A passage of current is only possible in the event of short circuiting or when the condensers are injured as by breaking down-from insulating resistances.
  • '1 and 2 are the conductors which supply alternating current to the primary winding 3 of the transformer.
  • 4 is the secondary winding to the transformer, which in this case is divided into two parts so that the one end of the first part of the secondary winding is connected to the condenser C by a conductor 6, while the second end of this part of the secondary winding 4 is connected with the cathode K of the rectifier 5, while one end of the second. part of the secondary winding is connected with a condenser C by means of the conductor 7 and the second end of the same part of the secondary winding 4 is connected to the anode A of the rectifier 5.
  • the condensers 0 and C' are connected through suitas able conductors 6' and 7' with'the object 11 to be protected, for example a steam boiler or the ike.
  • An apparatus for preventing the' formation of and for removing scale in boilers comprising an alternating current transformer having I a secondary winding divided into two parts, a rectifler connected with one end of each of the winding parts, connections between the opposite ends of the winding parts andthe' boiler, and condensers interposed in said connections.

Landscapes

  • 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)
  • Coils Or Transformers For Communication (AREA)
  • Rectifiers (AREA)
US613529A 1931-12-31 1932-05-25 Means for preventing and removing boiler scale Expired - Lifetime US1964704A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
YU1964704X 1931-12-31

Publications (1)

Publication Number Publication Date
US1964704A true US1964704A (en) 1934-06-26

Family

ID=25560058

Family Applications (1)

Application Number Title Priority Date Filing Date
US613529A Expired - Lifetime US1964704A (en) 1931-12-31 1932-05-25 Means for preventing and removing boiler scale

Country Status (3)

Country Link
US (1) US1964704A (enrdf_load_stackoverflow)
DE (1) DE623405C (enrdf_load_stackoverflow)
FR (1) FR751908A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435973A (en) * 1941-08-19 1948-02-17 Rusta Restor Corp Method of and means for providing cathodic protection of metallic structures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435973A (en) * 1941-08-19 1948-02-17 Rusta Restor Corp Method of and means for providing cathodic protection of metallic structures

Also Published As

Publication number Publication date
FR751908A (fr) 1933-09-12
DE623405C (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
US1964704A (en) Means for preventing and removing boiler scale
US2045034A (en) Device for heating incandescible cathodes
US1937369A (en) Electric valve circuit
US1956416A (en) High voltage discharge apparatus
US1982329A (en) Power control for inductive load
US2141927A (en) Arc-back suppression
US1694151A (en) Rectifying system
US1918870A (en) Electric valve converting apparatus
US2893939A (en) Cathodic protection system
US2426046A (en) Vapor electric device
US1748133A (en) Vapor rectifier
US1971718A (en) Method and apparatus for preventing backfires in metal vapor rectifiers
US1607075A (en) Electrolytic rectifier
US1845841A (en) Method and apparatus for preventing back-fires in metal vapor rectifiers
US1217149A (en) X-ray apparatus.
US1829603A (en) Rectifying installation
US1275782A (en) Alternating-current rectifier.
US1722207A (en) Means for suppressing higher harmonics
US1877753A (en) Electric current interrupting means
US2491990A (en) Cathode spot control
US1717312A (en) Rectifying system
US2488321A (en) Power supply apparatus
GB391674A (en) Improvements in and relating to electric distribution systems
SU61678A1 (ru) Электрический выпр митель
AT128574B (de) Anordnung zur Speisung elektrostatischer Lautsprecher.