Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28B—STEAM OR VAPOUR CONDENSERS
  • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
  • F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28B—STEAM OR VAPOUR CONDENSERS
  • F28B9/00—Auxiliary systems, arrangements, or devices

Definitions

• the invention relates to a condensation plant having the features in the preamble of patent claim 1.
• a forced-ventilation condensation system with an aerodynamic wall is proposed to reduce the warm air recirculation.
• the flow velocity of the aerodynamic wall should be higher than the exit velocity of the cooling air from the heat exchanger elements.
• the nozzles can be arranged above or to the side of the heat exchanger elements.
• slot nozzles conceivable, which are arranged at the edge of the condensation plant and which can be charged with cold or hot air.
• the present invention seeks to provide a condensation plant with an aerodynamic wall, which is at least partially switchable without major structural changes in case of need.
• the condensation plant according to the invention has at its edge a windbreak wall constructed from plate elements, wherein the plate elements have a multiplicity of hollow chambers extending in the vertical direction.
• the hollow chambers of this windbreak wall are used to form an air flow to create an aerodynamic wall above the windbreak wall.
• the essential advantage of the condensation plant according to the invention is that no additional slot nozzles or complex nozzle shafts must be installed, since the already existing windbreak wall is used to form an aerodynamic wall.
• the introduced air flow is in particular a cold air flow, which mixes with the heated cooling air and alone due to the mixing reduces the negative effects of the remaining warm air circulation.
• Numerical checks showed a significant reduction of the local warm air recirculation rate by a few percentage points at suitable air flow rates. This leads to an improvement in the condensation performance and thus to an increase in power plant efficiency.
• the promotion of the accelerated air flow can be accomplished with a separate, e.g. take place with a mobile fan or by branching a partial flow of the cooling air conveying fans, which are associated with the peripheral heat exchanger elements.
• Figure 1 is a side view of a condensation plant with a plurality of roof-shaped heat exchanger elements arranged in series, which are positioned between edge windshields;
• Figure 2 is a condensation plant in plan view
• FIG. 3 a side-side heat exchanger element adjacent to a windbreak wall
• Figure 4 shows a further embodiment according to the representation of Figure 3 and
• Figure 5 shows a cross section through a windbreak wall, as used in Figures 3 and 4 are used.
• FIGS 1 and 2 show a condensation plant 1 with a plurality of heat exchanger elements 2 arranged in series, which is supplied via fans 3 cooling air K.
• the water vapor supplied via a steam distribution line 4 condenses within the heat exchanger elements 2.
• the heat exchanger elements 2 are surrounded overall by a windbreak wall 6 arranged on the edge 5 of the condensation plant 1, which prevents immediate and unhindered recirculation of hot air.
• the degree of warm air recirculation is highly dependent on the locally prevailing wind direction. In particular, in the corner region of a condensation plant, there may be strong warm air recirculation, which negatively affects the condensation performance and thus the power plant efficiency.
• an aerodynamic wall 7 is formed above the windbreak wall 6, which constitutes an additional barrier between the hot air W flowing out of the heat exchanger elements 2 and the cooling air K drawn in from below.
• FIG. 1 shows by way of example that such an aerodynamic wall 7 is formed only in the area of the windscreen wall 6 left in the image plane.
• Corresponding edge portions 8 of an aerodynamic wall 7 are likewise shown by way of example in the plan view of FIG.
• Such an aerodynamic wall is usually only local necessary, especially if very specific wind conditions prevail. It is crucial that the aerodynamic wall 7 can be formed at any desired edge portion 8, without significant structural changes to the condensation plant are required.
• Windbreak walls 6 may in particular be constructed of self-supporting plate elements, e.g. have a trapezoid or waveform.
• FIG. 5 shows an example in which a central plate element 10 with trapezoidal hollow chambers 9 is closed on both sides by planar plate elements 11, 12, so that the required hollow chambers 9 are formed.
• Figures 3 and 4 show how the air flow L is introduced into the hollow chambers 9.
• Figure 3 shows that in the lower edge region of the windbreak wall 6, a valve 13 is arranged, which branches off a partial air flow L1 of the cooling air flow K.
• the butterfly valves 13 can be opened and closed as needed.
• the air flow L can be generated at least proportionally by additional fans 14.
• the embodiment of Figure 4 shows that the air flow L from the partial flows L1 and L2 composed, which are applied by the additional fan 14 and the fan 3.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
• Cooling Or The Like Of Electrical Apparatus (AREA)
• Other Air-Conditioning Systems (AREA)
• Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (1)

Family

ID=36870066

Family Applications (1)

Country Status (14)

Cited By (1)

Families Citing this family (10)

Citations (4)

Family Cites Families (11)

• 2005
  • 2005-05-23 DE DE102005024155A patent/DE102005024155B4/de not_active Expired - Fee Related
• 2006
  • 2006-05-22 RU RU2007125652/06A patent/RU2347995C1/ru active
  • 2006-05-22 DE DE502006001347T patent/DE502006001347D1/de active Active
  • 2006-05-22 AT AT06753194T patent/ATE404837T1/de not_active IP Right Cessation
  • 2006-05-22 US US11/915,207 patent/US20080196435A1/en not_active Abandoned
  • 2006-05-22 WO PCT/DE2006/000879 patent/WO2006125420A1/de active IP Right Grant
  • 2006-05-22 AP AP2007004006A patent/AP2007004006A0/xx unknown
  • 2006-05-22 ES ES06753194T patent/ES2309965T3/es active Active
  • 2006-05-22 CN CN200680001529A patent/CN100580361C/zh not_active Expired - Fee Related
  • 2006-05-22 EP EP06753194A patent/EP1886084B1/de not_active Not-in-force
  • 2006-05-22 MX MX2007005843A patent/MX2007005843A/es active IP Right Grant
  • 2006-05-22 AU AU2006251721A patent/AU2006251721B2/en not_active Ceased
• 2007
  • 2007-07-12 MA MA30066A patent/MA29230B1/fr unknown
  • 2007-09-07 TN TNP2007000344A patent/TNSN07344A1/en unknown
  • 2007-11-21 ZA ZA200710041A patent/ZA200710041B/xx unknown

Patent Citations (4)

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