• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Flow straightener for improving the flow profile in a gas line ahead of a flowmeter, comprising at least three plates with regularly distributed perforations and spaced apart parallel to each other perpendicularly to the axis of the line. The perforated plates are mounted with a circumferential sealing (preferably welded) in or on a sleeve which can be inserted in the line with a sliding fit.
    公开号:SU843785A3
    申请号:SU772502544
    申请日:1977-06-08
    公开日:1981-06-30
    发明作者:Беллинга Хендрик
    申请人:Н.В.Недерландзе Газуни (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to devices for rectifying a gas stream prior to a flow meter. Known control valves for small portions of gas contain a sleeve in which perforated discs are installed to create flow resistance. However, these valves do not allow them to be used as a flow rectifier. Closest to the present invention is a flow rectifier used to limit the length of the straight pipe section in front of the flowmeter, which is necessary for an accurate indication of the flowmeter. This rectifier contains mutually parallel plates installed perpendicular to its axis perpendicular to its axis, in which uniformly arranged perforations are made. These plates are bonded to each other by means of expansion bolts or limiting stripes 2. However, a known rectifier is not sufficiently effective, for example, at expansion stations of the natural gas network and does not allow for eliminating significant measurement errors. The purpose of the invention is to ensure optimal flow distribution. This goal is achieved by means of a known rectifier that the perforated plates are fastened along their periphery with a hermetic seam to one of the surfaces of the sleeve, which is installed in the ssz pipeline with free slip, the distance between the plates being equal to 0.40, 6 of the internal diameter of the pipe. The holes in each plate are equal to 15–25% of the area of the pipeline: the cross section of the pipeline. FIG. 1 shows the flow rectifier circuit; FIG. 2 is a flow diagram, obtained in the gas pipeline of a known rectifier; FIG. 3 the same, in the gas pipeline of the proposed yper mitel. ..- .. The rectifier contains two pipelines 1 and 2 of the pipeline, flanges 3 and 4, by means of which the pipes are fastened to each other, the sleeve 5 installed in the pipeline with a free
    slip and perforated plate 6, bonded to the end of the sleeve 5 weld. The diameter of the plate 6 is designed so that it can be clamped between the flanges. Perforated plates 7 and 8 are installed and fastened with a weld in the sleeve. The distance between plates 6, 7 and 8 is 0.4-0.6 of the internal diameter of the pipeline. The total perforation area of each plate is 15-25% of the cross-sectional area of the pipeline.
    Before the flow straightener, a perturbing flow element is created, made in the form of a plate that blocks the cross-section of the pipeline, with an eclasentically arranged opening. The flow pattern obtained after the straightener (Figures 2 and 3) presents a graph, on the horizontal axis of which a relation is plotted speed V, prevailing in a certain place, on the diametral line to the average speed Vm, on the vertical axis - the ratio, distance r to the axis of the pipeline to the radius R of the pipeline.
    As can be seen from the graphs, the flow after the proposed recruiter is very little disturbed.
    权利要求:
    Claims (2)
    [1]
    1. Patent of the GDR No. 59445,
    cl. 47 f 1/01, pub. 1967.
    [2]
    2. US patent number 2929288,
    cl. F 15 D / OO, publ. 1969 (prototype).
    0.95 1.00 1.05 110
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    类似技术:
    公开号 | 公开日 | 专利标题
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    KR101989844B1|2019-06-17|Flow uniformizing device
    US1140661A|1915-05-25|Water-meter.
    SU575496A2|1977-10-05|Switch-over device of a flow metering apparatus
    同族专利:
    公开号 | 公开日
    NL7606133A|1977-12-12|
    BE855459A|1977-10-03|
    NO146450B|1982-06-21|
    NO146450C|1982-09-29|
    NO771993L|1977-12-09|
    GB1577568A|1980-10-29|
    CA1056260A|1979-06-12|
    FR2354467A1|1978-01-06|
    FR2354467B1|1981-12-11|
    US4142413A|1979-03-06|
    DE2725138A1|1977-12-22|
    NL181292C|1987-07-16|
    NL181292B|1987-02-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1999018172A1|1997-10-08|1999-04-15|Forest Star International Ltd.|Unit for supplying a coke-deposit inhibitor solution in tube furnaces used for the pyrolysis of raw hydrocarbons|US2600733A|1950-12-06|1952-06-17|Standard Oil Co|Gas mixing apparatus|
    US2929248A|1957-11-13|1960-03-22|Bailey Meter Co|Flow meter|
    US3191630A|1963-04-11|1965-06-29|Cottrell Res Inc|Gas flow control system for sub-sonic divergent diffusers|
    GB1288258A|1969-10-22|1972-09-06|
    US3626755A|1970-04-09|1971-12-14|Hans Rudolph Inc|Flow measuring apparatus|
    JPS5137022B1|1971-03-11|1976-10-13|
    US3840051A|1971-03-11|1974-10-08|Mitsubishi Heavy Ind Ltd|Straightener|
    GB1422531A|1972-02-07|1976-01-28|English Clays Lovering Pochin|Hoses including devices for inducing streamline flow in fluids|DE2934137C2|1978-08-25|1985-05-15|Nissan Motor Co., Ltd., Yokohama, Kanagawa|Flow measuring arrangement for measuring an amount of flow in a tubular channel|
    US4224826A|1979-01-05|1980-09-30|John McLoughlin|Flow measuring means|
    US4270577A|1979-11-29|1981-06-02|Environmental Air Products, Inc.|Air flow device|
    DE8229509U1|1982-10-21|1983-08-04|Gebrüder Trox, GmbH, 4133 Neukirchen-Vluyn|Control valve to keep the volume flow constant, especially in ventilation systems|
    DE3908401A1|1989-03-15|1990-09-20|Ruhrgas Ag|Method and device for rectifying a disturbed flow|
    US5253517A|1990-05-30|1993-10-19|Siemens Aktiengesellschaft|Flow converter|
    JP2806602B2|1990-06-18|1998-09-30|東京瓦斯株式会社|Fluidic flow meter|
    US5099879A|1991-05-16|1992-03-31|Coen Company, Inc.|Combustion air flow stabilizer|
    WO1993006439A1|1991-09-23|1993-04-01|Futureflo System, Incorporated|Liquid flow meter|
    US5495872A|1994-01-31|1996-03-05|Integrity Measurement Partners|Flow conditioner for more accurate measurement of fluid flow|
    NL194834C|1994-03-21|2003-04-03|Instromet Bv|Flow director for a turbine radar gas meter.|
    DE19521523A1|1995-06-13|1996-12-19|Ruhrgas Ag|Flow rectifier walled parallel to gas or fluid flow|
    US6494105B1|1999-05-07|2002-12-17|James E. Gallagher|Method for determining flow velocity in a channel|
    US6170528B1|1999-07-26|2001-01-09|Tapco International, Inc.|Assembly of orifice chambers progressively reducing operating pressure for large gas flows|
    US20030058737A1|2001-09-25|2003-03-27|Berry Jonathan Dwight|Mixer/flow conditioner|
    US7089963B2|2002-11-26|2006-08-15|David Meheen|Flow laminarizing device|
    US7011180B2|2002-09-18|2006-03-14|Savant Measurement Corporation|System for filtering ultrasonic noise within a fluid flow system|
    US7347223B2|2003-07-21|2008-03-25|The Metraflex Company|Pipe flow stabilizer|
    US7845688B2|2007-04-04|2010-12-07|Savant Measurement Corporation|Multiple material piping component|
    US8307943B2|2010-07-29|2012-11-13|General Electric Company|High pressure drop muffling system|
    DE102010047680A1|2010-10-06|2012-04-12|Hydrometer Gmbh|gas Meter|
    US8430202B1|2011-12-28|2013-04-30|General Electric Company|Compact high-pressure exhaust muffling devices|
    US8511096B1|2012-04-17|2013-08-20|General Electric Company|High bleed flow muffling system|
    US9399951B2|2012-04-17|2016-07-26|General Electric Company|Modular louver system|
    US8739519B2|2012-04-17|2014-06-03|Ford Global Technologies, Llc|Multi-tiered telescope shaped atomizer|
    US8550208B1|2012-04-23|2013-10-08|General Electric Company|High pressure muffling devices|
    JP2015086968A|2013-10-31|2015-05-07|三菱日立パワーシステムズ株式会社|Multistage decompression device and boiler|
    WO2015098389A1|2013-12-27|2015-07-02|三菱日立パワーシステムズ株式会社|Low-noise pressure reduction device and combustion device|
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    US10865818B2|2016-05-06|2020-12-15|Virginia Tech Intellectual Properties, Inc.|Generalized flow profile production|
    US10300447B2|2016-12-01|2019-05-28|Phillips 66 Company|Equalizing vapor velocity for reactor inlet|
    DE102017129031A1|2017-12-06|2019-06-06|Truma Gerätetechnik GmbH & Co. KG|Heating module for a heating system of a habitable vehicle|
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    DE102018213276A1|2018-08-08|2020-02-13|Contitech Mgw Gmbh|Device for regulating the swirl of a fluid flowing in a pipeline|
    US11002300B2|2019-01-30|2021-05-11|General Electric Company|Flow conditioning system|
    US11112808B2|2019-06-28|2021-09-07|The Boeing Company|Fluid flow restrictor device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NLAANVRAGE7606133,A|NL181292C|1976-06-08|1976-06-08|DEVICE FOR IMPROVING THE FLOW PROFILE IN A GAS PIPE.|
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