CA2233072A1 - Blowdown and venting jet noise suppressor - Google Patents

Blowdown and venting jet noise suppressor Download PDF

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Publication number
CA2233072A1
CA2233072A1 CA 2233072 CA2233072A CA2233072A1 CA 2233072 A1 CA2233072 A1 CA 2233072A1 CA 2233072 CA2233072 CA 2233072 CA 2233072 A CA2233072 A CA 2233072A CA 2233072 A1 CA2233072 A1 CA 2233072A1
Authority
CA
Canada
Prior art keywords
stream
pressure
jet
velocity
noise
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
CA 2233072
Other languages
French (fr)
Other versions
CA2233072C (en
Inventor
Grazyna Petela
Wiktor Jungowski
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.)
NOVA Gas Transmission Ltd
Original Assignee
NOVA Gas Transmission Ltd
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 NOVA Gas Transmission Ltd filed Critical NOVA Gas Transmission Ltd
Priority to CA 2233072 priority Critical patent/CA2233072C/en
Publication of CA2233072A1 publication Critical patent/CA2233072A1/en
Application granted granted Critical
Publication of CA2233072C publication Critical patent/CA2233072C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
    • 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
    • F15D1/08—Influencing flow of fluids of jets leaving an orifice

Abstract

The present invention relates to a noise suppressor capable of reducing the noise of a fluid vented at high pressure and high mass flow rate from an industrial source, to the environmentally acceptable noise level. The invention combines two principles of dissipation of fluid stream energy: first, stream pressure is reduced by passing the stream through a swirler to split the stream into a number of smaller tangential streams which dissipate their energy along the spiral flow path due to friction; and next, the resulting streams pass through a tightly packed granular bed to reduce further the pressure and velocity of the exiting jet to atmospheric pressure and subsonic velocity, respectively. Such jet will generate much lower noise level, as compared to high pressure jet with cellular structure and supersonic velocity.
CA 2233072 1998-03-24 1998-03-24 Blowdown and venting jet noise suppressor Expired - Fee Related CA2233072C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2233072 CA2233072C (en) 1998-03-24 1998-03-24 Blowdown and venting jet noise suppressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2233072 CA2233072C (en) 1998-03-24 1998-03-24 Blowdown and venting jet noise suppressor

Publications (2)

Publication Number Publication Date
CA2233072A1 true CA2233072A1 (en) 1999-09-24
CA2233072C CA2233072C (en) 2004-05-04

Family

ID=29409508

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2233072 Expired - Fee Related CA2233072C (en) 1998-03-24 1998-03-24 Blowdown and venting jet noise suppressor

Country Status (1)

Country Link
CA (1) CA2233072C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010009529A1 (en) * 2008-07-25 2010-01-28 Hatch Ltd. Apparatus for stabilization and deceleration of supersonic flow incorporating a diverging nozzle and perforated plate
CN108825921A (en) * 2018-05-16 2018-11-16 广州莱仑特种装备有限公司 It is a kind of for heat up with the pipeline auxiliary device of noise reduction
CN116397725A (en) * 2023-04-11 2023-07-07 蓝深集团股份有限公司 Non-negative pressure water supply method with vibration reduction function

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010009529A1 (en) * 2008-07-25 2010-01-28 Hatch Ltd. Apparatus for stabilization and deceleration of supersonic flow incorporating a diverging nozzle and perforated plate
GB2474147A (en) * 2008-07-25 2011-04-06 Hatch Ltd Apparatus for stabilization and deceleration of supersonic flow incorporating a diverging nozzle and perforated plate
US8176941B2 (en) 2008-07-25 2012-05-15 Hatch Ltd. Apparatus for stabilization and deceleration of supersonic flow incorporating a diverging nozzle and perforated plate
GB2474147B (en) * 2008-07-25 2012-05-16 Hatch Ltd Apparatus for stabilization and deceleration of supersonic flow incorporating a diverging nozzle and perforated plate
AU2008359682B2 (en) * 2008-07-25 2013-08-01 Hatch Ltd. Apparatus for stabilization and deceleration of supersonic flow incorporating a diverging nozzle and perforated plate
CN108825921A (en) * 2018-05-16 2018-11-16 广州莱仑特种装备有限公司 It is a kind of for heat up with the pipeline auxiliary device of noise reduction
CN116397725A (en) * 2023-04-11 2023-07-07 蓝深集团股份有限公司 Non-negative pressure water supply method with vibration reduction function
CN116397725B (en) * 2023-04-11 2024-01-23 蓝深集团股份有限公司 Non-negative pressure water supply method with vibration reduction function

Also Published As

Publication number Publication date
CA2233072C (en) 2004-05-04

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Effective date: 20180326