• 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:
    In a ventilating valve adapted to be connected to a pipe in which, when the pressure in said pipe is below the ambient pressure, said pressure is equalized by causing ambient air to enter said pipe, said valve comprising an annular valve means, the pressure in a valve chamber communicating with the pipe acting on one side of said valve means while ambient pressure acts on the other side thereof through an inlet opening to the valve chamber, said inlet opening being defined by stays which extend between two seats co-operating with the valve means, there is arranged around the inner wall of the housing of said chamber a liquid collecting groove which is connected by means of one or more channels with the interior of a tubular connecting means for the pipe, and each such channel is arranged in a stay.
    公开号:SU1012806A3
    申请号:SU792720154
    申请日:1979-02-06
    公开日:1983-04-15
    发明作者:Арне Перссон Бенгт
    申请人:Бенгт Арне Перссон(Швеци ) ;；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering and can be used in valves operating at low ambient temperatures.
    A valve is known that contains a closure body in the form of a disk of elastic material mounted on the hub with the possibility of axial movement on the guide in the KOijnyca working cavity and overlapping two concentric seats, the inner one of which is made on the pipe, and the outer one in the body, and the cavity between the seats are connected to the entrance and there are spacers in it that connect the seats.
    However, this valve is not reliable enough if it operates at an outside temperature below the freezing point of water, and the environment inside the valve is at a high temperature, as condensate may accumulate in the valve. Frozen condensate can disable the valve and render it inoperable.
    The purpose of the ICC is to increase the reliability of the valve.
    The goal is achieved by the fact that in a ventilation valve that contains a locking organ in the form of a disk of elastic material, installed on the hub with the possibility of axial movement on the body in the working cavity and replaying two concentric seats, the inner one of which is made on the pipe, and external - in the case, the cavity between the seats communicating with the entrance and in it there are spacers connecting the seats, in the case concentric with the external seat an annular groove is made, and in at least one of them k - channel connecting. annular groove with inner tube space.
    FIG. 1 shows a valve, a longitudinal section; FIG. 2 is a section A-A in FIG. one; in fig. 3 valve with channel embodiment, prog.
    longitudinal incision; in fig. C - flow BB in FIG. 3
    The valve includes a housing 1, in which a hub 3 with a locking member 4 made in the form of a disk of elastic material is mounted on the guide 2 with the possibility of reciprocating axial movement. Case 1 is fixed
    on the pipe 5, on which the inner seat 6 is made. In the case 1, the outer seat 7 is concentric with the seat 6. Between the seats 6 and 7, the inlets 8 are made.
    6 and 7 are connected by struts 9, with a wall in at least one strut
    9 a channel 10 is made connecting the internal space of the pipe 5 with an annular groove 11 made
    in the housing 1 concentric with the outer seat 7. The channel 10 may be made in the form of an aperture (Fig. 0 or groove 12 (Fig. 3).
    The valve operates as follows.
    When the pressure of the medium outside the valve is less than inside, the valve; - closed. .
    With increasing pressure, the hub 3
    together with the locking organ k rises up along the guide 2 upwards and opens the inlets 8. Cold air from the outside enters the internal cavity of the valve, and the vapors vapor condenses.
    When the pressure inside and C1 outside the valve is equalized, the hub 3 and. the locking leg under the action of its own weight is lowered and
    P00NY body k overlaps saddles
    6 and 7. Condensate that has accumulated accumulates in the groove T1 and through the channel.
    10 and 12 flows into the inner space of the pipe 5.
    This prevents condensation from freezing. The proposed valve design allows it to operate reliably at a low ambient temperature.
    权利要求:
    Claims (1)
    [1]
    (56) 1. US Patent No. 3494373, cl. 137-217, published. 1970.: VENTILATION VALVE for connecting to a pipe, containing a locking member in the form of a disk of 'elastic material mounted on the hub with the possibility of axial movement on a guide in the working cavity of the body and overlapping two concentric seats, the inside of which is made on the pipe, and external - in the casing, and the cavity between the saddles is connected with the entrance and there are struts connecting the saddles, characterized in that, in order to increase the reliability of operation, an annular ring is made concentrically to the external saddle avka, and at least one of the struts - a channel connecting the annular groove with the interior of the pipe.
    类似技术:
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    同族专利:
    公开号 | 公开日
    JPH0137628B2|1989-08-08|
    AU4957479A|1980-03-20|
    IT7925593D0|1979-09-10|
    SE417345B|1981-03-09|
    AT380320B|1986-05-12|
    ATA591279A|1985-09-15|
    FI792763A|1980-03-13|
    ZA794691B|1980-08-27|
    IT1123582B|1986-04-30|
    DE7925734U1|1981-09-03|
    PT70139A|1979-10-01|
    NO792467L|1980-03-13|
    CA1116045A|1982-01-12|
    HU178947B|1982-07-28|
    US4436107A|1984-03-13|
    NO149974C|1984-07-25|
    DK155104C|1989-06-26|
    FR2436313B1|1983-07-22|
    SE7809583L|1980-03-13|
    NO149974B|1984-04-16|
    ES483832A1|1980-04-16|
    FI64692B|1983-08-31|
    DK155104B|1989-02-06|
    NL7906623A|1980-03-14|
    DK378179A|1980-03-13|
    GB2029937A|1980-03-26|
    MX149027A|1983-08-09|
    GB2029937B|1982-10-06|
    JPS5563072A|1980-05-12|
    FR2436313A1|1980-04-11|
    AU528507B2|1983-05-05|
    BE878172A|1979-12-03|
    FI64692C|1983-12-12|
    CH641886A5|1984-03-15|
    DE2936673A1|1980-04-10|
    引用文献:
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    DE969650C|1951-12-16|1958-06-26|Triton Belco Ag|Device for ventilating, in particular, domestic water pipes|
    SE377146B|1973-10-15|1975-06-23|Ba Installationsutveckling Ab|
    US3943958A|1974-10-04|1976-03-16|Davis Jr Roy Forrest|Continuous air removal valve|
    JPS5176293U|1974-12-13|1976-06-16|EP0059558B2|1981-02-21|1993-09-15|McALPINE & COMPANY LIMITED|Improvements in or relating to relief valves for sanitation systems or the like|
    BE895071A|1982-11-19|1983-03-16|Ericson Sture|AUTOMATIC AIR VALVE DEVICE FOR PIPES|
    US4834621A|1987-11-24|1989-05-30|Apco/Valve And Primer Corporation|Air throttling valve for submerged pump system|
    US5273068A|1993-04-20|1993-12-28|Duren Gary S|Air admittance valve for resisting high internal pressure|
    SE503815C2|1995-06-22|1996-09-09|Durgo Ab|Vent valve|
    US5706854A|1996-08-21|1998-01-13|Haynes; George William|Venturi vent valve|
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    EP1026329A1|1999-02-03|2000-08-09|Kurt Sture Birger Ericson|Air admittance valve for sanitary waste pipe system|
    US6161564A|1999-04-06|2000-12-19|Cornwall; Kenneth R.|Fire transmission prevention system|
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    WO2018093321A1|2016-11-15|2018-05-24|Aktiebolaget Durgo|Waste water piping system and an air valve|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE7809583A|SE417345B|1978-09-12|1978-09-12|Air vent|
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