US3656281A - Water separator-superheater - Google Patents

Water separator-superheater Download PDF

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Publication number
US3656281A
US3656281A US820599A US3656281DA US3656281A US 3656281 A US3656281 A US 3656281A US 820599 A US820599 A US 820599A US 3656281D A US3656281D A US 3656281DA US 3656281 A US3656281 A US 3656281A
Authority
US
United States
Prior art keywords
superheater
steam
mattresses
wire netting
drum
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
US820599A
Other languages
English (en)
Inventor
Parma Nand Bansal
Alois Sonnenmoser
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.)
BBC Brown Boveri AG Germany
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Application granted granted Critical
Publication of US3656281A publication Critical patent/US3656281A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
    • G21C15/16—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants comprising means for separating liquid and steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/26—Steam-separating arrangements
    • F22B37/266—Separator reheaters
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/23—Steam separators

Definitions

  • a water-separator-superheater structure includes a horizontally disposed casing having a drum-shaped configuration into which wet steam is admitted at the bottom portion of the drum.
  • the wet steam is caused to flow upwardly at an angle through a plurality of horizontally disposed wire netting mattresses arranged in superposed stepped relation which serve to separate out the moisture which drains off through the bottom of the casing, and the dried steam then passes through a tube type superheater to a discharge outlet.
  • the tubes of the superheater between which the dried steam passes are disposed at a steeply inclined angle in order to promote self-draining.
  • the object of the present invention is to eliminate the disadvantages and to find an economically more favorable solution. It is characterized by shielding means between the wet steam inlet and the inflow chamber in front of the wire netting mattresses and by a stepped nested arrangement of the wire netting mattresses whose entrance range is connected with the gle view of which shows in a purely schematic representation a cross section through a water separator-superheater.
  • the drum-shaped water separator-superheater jacket 1 represented in the drawing is circular-cylindrical with a longitudinal axis 2.
  • the entrance of the wet steam takes place through an inlet port 3 in a drum bottom of the water separator-superheater, while the superheated steam issues through an outlet nipple 4 which can be arranged at any point along the drum.
  • a shielding wall 5 is arranged between the inlet port 3 and an inflow chamber 7.
  • a drain pipe 9 At the lowest point of the water separator-superheater.
  • wire netting mattresses 11-14 Between these wire netting mattresses 11-14 are provided drop cover plates 17-19, which connect the inflow region of one mattress with the outflow region of the superposed mattress in such a way that two following mattresses with the respective drop cover plates appear Z-shaped in their cross section.
  • the widths A, B, C and D of the mattresses 11-14 are proportional to the steam inflow cross sections AB, BC, CD and DO. This has the result that the steam entrance velocities into the chambers between the wire netting mattresses are equal.
  • Behind the wire netting mattresses 11-14 is arranged a steam outflow chamber 21 in which steeply inclined superheater tubes are provided. These extend in normal planes to the longitudinal axis 2. Hot steam is admitted into the superheater tubes 22 through an inlet nipple 24 and a distributor. At the bottom of the superheater is provided an outlet nipple 25 for the discharge of the condensate formed.
  • the wet steam flows out of the high-pressure part of the steam turbine through the inlet port 3 into the water separator-superheater, in which it is deflected to a great extent by the shielding wall 5, to arrive in the inflow chamber 7.
  • the free flow area between the shielding wall 5 and the water separator-superheater jacket 1 is about equal to the cross section of the inlet port 3.
  • the water contained in the wet steam is separated to a great extent. It flows into the drain pipe 9 and is fed from there again into the steam cycle.
  • the practically water-free steam flows then around the superheater tubes 22 in which the superheated steam entering through the nipple 24 gives off its heat to the water-free steam and condenses, the condensate flowing off through the inclined superheater tubes 22 into a collector manifold from which it is likewise fed to the steam cycle through the nipple 25. In this manner the water-free steam flowing around the superheater tubes 22 is superheated and arrives through the outlet 4 in the low-pressure-part of the steam turbine.
  • the wet steam is conducted in the above described water separatorsuperheater through the wire netting mattresses 11-14 and subsequently directly through the tubular heat exchangers for superheating. Both the wire netting mattresses and the superheater extend over the entire length of the water separator-superheater.
  • the supply of the wet steam can be effected over a short distance and without preceding waterremoval.
  • the removal of the superheated steam can be effected at one or several points along the apparatus,suitable for the.
  • a water-separator-superheater structure comprising a cylindrical drum, said drum including therein an inlet for wet steam at the bottom of the drum, an inflow chamber for the wet steam, a plurality of wire netting mattresses arranged in superposed stepped relation, shielding means between said wet steam inlet and said inflow chamber in front of said wire netting mattresses, a drop cover plate connecting the entrance region of each wire netting mattress with the exit region of the mattress located next above, a dry steam outflow chamber, and a tubular heat exchanger located in said dry steam outflow chamber directly adjacent the exit regions of said wire netting mattresses, the tubes of said heat exchanger being steeply inclined to provide self-draining.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Cyclones (AREA)
US820599A 1968-06-27 1969-04-30 Water separator-superheater Expired - Lifetime US3656281A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH963568A CH483864A (de) 1968-06-27 1968-06-27 Wasserabscheider-Überhitzer

Publications (1)

Publication Number Publication Date
US3656281A true US3656281A (en) 1972-04-18

Family

ID=4354046

Family Applications (1)

Application Number Title Priority Date Filing Date
US820599A Expired - Lifetime US3656281A (en) 1968-06-27 1969-04-30 Water separator-superheater

Country Status (8)

Country Link
US (1) US3656281A (de)
BE (1) BE735156A (de)
CH (1) CH483864A (de)
DE (1) DE1913228B2 (de)
ES (1) ES368790A1 (de)
FR (1) FR2011992A1 (de)
NL (1) NL143679B (de)
SE (1) SE342688B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750371A (en) * 1968-12-04 1973-08-07 Sulzer Ag Apparatus for separating liquids from wet steam
US3808775A (en) * 1970-09-21 1974-05-07 Energiagazdalkodasi Intezet Apparatus for drying and superheating steam
US4530814A (en) * 1982-05-13 1985-07-23 The Babcock & Wilcox Company Apparatus for superheating steam
US20090288418A1 (en) * 2006-08-28 2009-11-26 Issaku Fujita Moisture separator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0128252B1 (de) * 1983-06-13 1987-06-10 The Babcock & Wilcox Company Kernkraftanlage und Apparat zum Überhitzen von Dampf
DE3730955A1 (de) * 1987-09-15 1989-03-23 Pall Gmbh Abscheideeinrichtung fuer reaktoren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521576A (en) * 1921-01-05 1924-12-30 Wittemeier Hans Filter for purifying the air
US2194698A (en) * 1937-12-04 1940-03-26 Babcock & Wilcox Co Separator
US2256115A (en) * 1937-12-04 1941-09-16 James C Hobbs Separator
GB931235A (en) * 1961-12-29 1963-07-17 Westinghouse Electric Corp Unitary moisture/steam separating and steam reheating apparatus
US3472209A (en) * 1967-09-07 1969-10-14 Sulzer Ag Apparatus for separating water from wet steam prior to superheating of the steam

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521576A (en) * 1921-01-05 1924-12-30 Wittemeier Hans Filter for purifying the air
US2194698A (en) * 1937-12-04 1940-03-26 Babcock & Wilcox Co Separator
US2256115A (en) * 1937-12-04 1941-09-16 James C Hobbs Separator
GB931235A (en) * 1961-12-29 1963-07-17 Westinghouse Electric Corp Unitary moisture/steam separating and steam reheating apparatus
US3472209A (en) * 1967-09-07 1969-10-14 Sulzer Ag Apparatus for separating water from wet steam prior to superheating of the steam

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750371A (en) * 1968-12-04 1973-08-07 Sulzer Ag Apparatus for separating liquids from wet steam
US3808775A (en) * 1970-09-21 1974-05-07 Energiagazdalkodasi Intezet Apparatus for drying and superheating steam
US4530814A (en) * 1982-05-13 1985-07-23 The Babcock & Wilcox Company Apparatus for superheating steam
US20090288418A1 (en) * 2006-08-28 2009-11-26 Issaku Fujita Moisture separator
US7993426B2 (en) * 2006-08-28 2011-08-09 Mitsubishi Heavy Industries, Ltd. Moisture separator

Also Published As

Publication number Publication date
NL143679B (nl) 1974-10-15
DE1913228A1 (de) 1970-02-19
DE1913228B2 (de) 1972-03-23
NL6813651A (de) 1969-12-30
FR2011992A1 (de) 1970-03-13
CH483864A (de) 1970-01-15
ES368790A1 (es) 1971-05-01
SE342688B (de) 1972-02-14
BE735156A (de) 1969-12-01

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