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EP0000187A1 - Procédé pour diminuer le bruit résultant de l'étranglement d'un écoulement de vapeur et de gaz - Google Patents

Procédé pour diminuer le bruit résultant de l'étranglement d'un écoulement de vapeur et de gaz Download PDF

Info

Publication number
EP0000187A1
EP0000187A1 EP78100225A EP78100225A EP0000187A1 EP 0000187 A1 EP0000187 A1 EP 0000187A1 EP 78100225 A EP78100225 A EP 78100225A EP 78100225 A EP78100225 A EP 78100225A EP 0000187 A1 EP0000187 A1 EP 0000187A1
Authority
EP
European Patent Office
Prior art keywords
section
throttling
divided
cross sections
flow
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.)
Granted
Application number
EP78100225A
Other languages
German (de)
English (en)
Other versions
EP0000187B1 (fr
Inventor
Fritz Kolb
Otto Dr. Ziegert
Silvan Fehlisch
Hans Bender
Manfred Schmitt
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.)
GULDE REGELARMATUREN KG
Bayer AG
Erdoelchemie GmbH
Original Assignee
GULDE REGELARMATUREN KG
Bayer AG
Erdoelchemie GmbH
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 GULDE REGELARMATUREN KG, Bayer AG, Erdoelchemie GmbH filed Critical GULDE REGELARMATUREN KG
Publication of EP0000187A1 publication Critical patent/EP0000187A1/fr
Application granted granted Critical
Publication of EP0000187B1 publication Critical patent/EP0000187B1/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow

Definitions

  • the invention relates to a method for noise reduction in the throttling of steam and gas flows, in which the divided flows flow at different speeds.
  • noise level reductions of up to 15 dB (A) can be achieved, which are generally not sufficient.
  • the reason for the low noise level reduction is given by the geometric dimensions.
  • the holes for the partial flows cannot be made arbitrarily small, since the operational safety is then endangered by contamination.
  • the sizes become bulky with large quantities. It has also been found that a one-step pressure reduction in no way leads to optimal sound level reductions.
  • throttling can be achieved by using series resistors.
  • a process can be found which allows the low-noise expansion of gases and vapors with simple, maintenance-friendly and reliable measures which can be adapted to the required procedural and acoustic conditions without problems.
  • the flow cross-section in the second section is expanded by 1.5 - 15 times the product of the quotient input druok to end druok times the flow cross-section of the first section.
  • the free jets are discharged in such a way that unification of the free jets and thus additional sound generation is avoided.
  • the characteristic distances between the boundary walls of the river cross sections in the second section are smaller than the average wavelength of the emitted sound spectrum.
  • the relaxation in the first stretch is divided into several mares, which has proven to be advantageous particularly in the case of an extremely high Druok gradient.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Pipe Accessories (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Drying Of Solid Materials (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Exhaust Silencers (AREA)
EP78100225A 1977-06-25 1978-06-23 Procédé pour diminuer le bruit résultant de l'étranglement d'un écoulement de vapeur et de gaz Expired EP0000187B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2728778A DE2728778B2 (de) 1977-06-25 1977-06-25 Verfahren zur Geräuschminderung bei der Drosselung von Dampf- und Gasstromen
DE2728778 1977-06-25

Publications (2)

Publication Number Publication Date
EP0000187A1 true EP0000187A1 (fr) 1979-01-10
EP0000187B1 EP0000187B1 (fr) 1980-09-17

Family

ID=6012396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100225A Expired EP0000187B1 (fr) 1977-06-25 1978-06-23 Procédé pour diminuer le bruit résultant de l'étranglement d'un écoulement de vapeur et de gaz

Country Status (6)

Country Link
US (1) US4310069A (fr)
EP (1) EP0000187B1 (fr)
BE (1) BE868391A (fr)
DE (2) DE2728778B2 (fr)
ES (1) ES471079A1 (fr)
IT (1) IT7824939A0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590688A (en) * 1994-03-09 1997-01-07 Neles-Jamesbury Oy Device provided with a gas flow channel to reduce noise caused by throttling a gas flow

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3760925B1 (fr) * 2019-07-01 2024-12-18 Ansaldo Energia Switzerland AG Ensemble de chambre de combustion d'un ensemble de turbine à gaz comportant un amortisseur et procédé de fabrication

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2263956A1 (de) * 1972-12-29 1974-07-04 Gulde Regelarmaturen Kg Vorrichtung zur verminderung des schalles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4262770A (en) * 1977-03-28 1981-04-21 Facet Enterprises, Inc. Porous acoustic element and a method of controlling aerodynamic noise in a flowing gas

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2263956A1 (de) * 1972-12-29 1974-07-04 Gulde Regelarmaturen Kg Vorrichtung zur verminderung des schalles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ENGINEERING, vol. 78, no. 11, May 17, 1971, US McGraw-Hill New York H.D. BAUMANN, "Control Valve", Seiten 120-126. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590688A (en) * 1994-03-09 1997-01-07 Neles-Jamesbury Oy Device provided with a gas flow channel to reduce noise caused by throttling a gas flow

Also Published As

Publication number Publication date
EP0000187B1 (fr) 1980-09-17
ES471079A1 (es) 1979-01-16
DE2728778A1 (de) 1979-01-11
DE2728778B2 (de) 1979-08-30
DE2860166D1 (en) 1980-12-18
US4310069A (en) 1982-01-12
IT7824939A0 (it) 1978-06-23
BE868391A (fr) 1978-12-27

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