• 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:
    A method of regulating the output quantity of compressed medium of single and multi-stage screw and turbo compressor systems, comprises, throttling the suction to the compressor systems with a throttling valve by fluid-pressure operation of the valve, sensing the pressure of the discharge of the compressor systems, closing the throttle valve in accordance with the pressure which is sensed and bleeding the medium after it is passed through the compressors and in a proportion to the pressure which is sensed and only after the throttling valve is moved through a proportional closing movement. The device for operating the compressor systems for regulating the quantity of medium includes a throttle valve in the suction having a valve member movable between opened and closed positions and with a control piston connected to the throttle valve to shift the valve member. A bleed valve has a passage connected to the discharge at one end and to the atmosphere at its opposite end, with valve seats in the passage closable by valve means which are connected to the control piston and movable in the passage toward and away from the valve seat means for opening and closing the passage. The valve and the valve seat means provide a lost motion connection to the control piston so that the control piston is movable to move the valve means in an opening direction to open the passage only after the throttle is moved in a closing direction to take up the lost motion connection.
    公开号:SU936825A3
    申请号:SU782650454
    申请日:1978-08-17
    公开日:1982-06-15
    发明作者:Лантерманн Хайнц
    申请人:Гутехоффнунгс-Хютте Штеркраде Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to compression engineering.
    A device is known for controlling the productivity of a compressor, comprising a rotary valve installed in the suction pipe of the latter and connected to the actuator rod, and a drain pipe connected to the discharge line and equipped with a relief valve · 10 having a rod equipped on one side with two shut-off bodies and connected to the other with the piston of the hydraulic cylinder [i] ·
    In the known device, the rotary valve 15 has a separate actuator, which complicates the design.
    The purpose of the invention is to simplify designs and increase reliability.
    This goal is achieved by the fact that the rod is connected to the piston of the hydraulic cylinder, and the groove is made in the rod and the locking elements are fixed to the rod by means of a pin located in the groove. 25
    In FIG. 1 is a diagram ustroy--OPERATION 1 for capacity control; in FIG. 2 - relief valve and rotary damper with a common actuator, longitudinal section.
    The device comprises a rotary damper 3 mounted in the suction pipe 1 of the compressor 2, connected to the actuator rod 4, and a drainage pipe 5 connected to the discharge line 6 and provided with a relief valve 7 having a rod 8, provided on one side with two shut-off bodies 9 and connected to the other with the piston 10 of the hydraulic cylinder 11. The rod 4 is connected to the piston 10 of the hydraulic cylinder 11, and the groove 12 is made in the rod 8 and the locking elements 9 are fixed to the rod 8 by means of a pin 13 · located in the groove 12
    An oil pump 17 is connected to the hydraulic cylinder 11 through a pipeline 14 and a pipeline 15 with a pressure regulator 16; the idle-flow pipeline 18 is equipped with a throttle 19 and a solenoid valve 20 and is connected to the oil tank 21, When the pressure in the discharge line 6 of compressor 2, for example, screw ( in Fig. 1 it is shown as two-stage), through the pressure regulator 16 through the pipeline 15, the oil enters the hydraulic cylinder 11 and moves the piston 10 up. The damper 3 closes the cross section of the suction pipe 1, while the compressor 2 starts to work in the throttling mode on the suction.
    Moving the piston 10 upwards causes the opening of the valve 7, while part of the working medium is discharged into the atmosphere. Due to the presence of the groove 12 in the stem 8 of the discharge valve 7, it will open only after a certain angle of rotation of the valve 3, which allows you to adjust the performance within certain limits without dumping the working environment.
    When the pressure drops in the discharge line 6 to a predetermined value, the pipe 15 is closed, the piston 10 of the hydraulic cylinder 11 returns to its original position, and the valve 3 opens the suction pipe]. The valve 7, having a common actuator with a shutter 3, is closed, and the pump 17 by opening the electromagnetic valve 20 is placed in idle mode. The connection of the rod 4 with the piston 10 of the hydraulic cylinder 11 allows them to be carried out with a common drive, which simplifies the design and increases reliability.
    权利要求:
    Claims (1)
    [1]
    393 of the stroke 18 is equipped with a throttle 19 and a solenoid valve 20 and is connected to the oil tank 21. When the pressure in the discharge line of the compressor 2, for example screw, increases (it is shown in two steps in Fig. 1), through pressure regulator 16 through pipeline 15 oil enters the hydraulic cylinder 11 and moves the piston 10 up. The valve 3 overlaps the cross section of the suction pipe 1. At the same time, the compressor 2 starts to operate in the throttling mode at the intake. Moving the piston 10 upwards causes the valve 7 to open, with a portion of the working medium discharged into the atmosphere. Due to the presence of a groove 12 in the stem 8 of the discharge valve 7, it will open only after a certain angle of rotation of the valve 3, which allows you to adjust the performance within certain limits without resetting the working medium. When the pressure in the discharge line 6 drops to a predetermined value, the pipeline 15 closes, the piston 10 of the hydraulic cylinder 11 returns to its original position, and the valve 3 opens the suction pipe. The valve 7 having a common lock with valve 3 is closed, and the pump 17 by opening the electromagnetic valve 4 out of 20 is switched to idle mode. Connecting the rod 4 to the piston 10 of the hydraulic cylinder 11 allows them to be performed with a common drive, which simplifies the design and improves reliability. The invention The device for controlling the compressor performance, containing a rotary valve installed in the suction pipe of the latter, connected with a drive rod, and a drain pipe connected to the discharge line and equipped with a relief valve, having a rod, fitted on one side with two locking bodies and connected to the other side of the piston of the hydraulic cylinder, which is distinguished by the fact that, in order to simplify the design and increase reliability, the rod is connected to the piston of the hydraulic cylinder , and the groove is made in the rod and the locking bodies are fixed on the rod by means of a pin placed in the groove. Sources of information taken into account in the examination 1. The patent of Germany W 908657, cl. 27 From 1301, published. 195.)}
    ui.1 Ql About h / “-. one
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    同族专利:
    公开号 | 公开日
    DE2737677A1|1979-03-01|
    DE2737677C2|1984-05-10|
    FR2400627A1|1979-03-16|
    GB2002925A|1979-02-28|
    US4212599A|1980-07-15|
    FR2400627B1|1986-04-18|
    CH633080A5|1982-11-15|
    IT7826336D0|1978-07-31|
    GB2002925B|1982-01-20|
    BR7805115A|1979-04-10|
    IT1097596B|1985-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US862867A|1906-03-28|1907-08-06|Lewis Watson Eggleston|Pneumatic pumping apparatus.|
    US1519995A|1921-01-10|1924-12-16|Sullivan Machinery Co|Compressor-controlling means|
    GB251934A|1925-05-07|1926-06-10|Swiss Locomotive & Machine Works|Improvements in controlling rotary compressors|
    DE461771C|1925-06-14|1928-06-27|Erich Wiederhold|Control device for air compressor driven by internal combustion engine|
    US2234469A|1939-11-08|1941-03-11|Wagner Electric Corp|Compressor unloading valve mechanism|
    US2234488A|1939-11-08|1941-03-11|Wagner Electric Corp|Compressor unloading valve mechanism|
    DE908657C|1950-11-17|1954-04-08|English Electric Co Ltd|Control device for centrifugal compressor|
    US3043495A|1957-11-26|1962-07-10|Westinghouse Air Brake Co|Automatic engine governor and compressor unloader apparatus|
    DE1094915B|1959-02-25|1960-12-15|Bbc Brown Boveri & Cie|Control device for turbo machines|
    DE1428065A1|1963-04-11|1968-11-21|Continental Elektro Ind Ag|Pump limit control device on throttle-regulated compressors|
    US3226011A|1964-03-27|1965-12-28|Joy Mfg Co|Commandair control system|
    US3367562A|1966-06-23|1968-02-06|Atlas Copco Ab|Means for unloading and controlling compressor units|
    DE1648501C2|1968-02-09|1982-05-13|Gutehoffnungshütte Sterkrade GmbH, 4200 Oberhausen|Compressor with an absolute pressure measuring device|
    US3961862A|1975-04-24|1976-06-08|Gardner-Denver Company|Compressor control system|DE3032002C2|1980-08-25|1986-01-16|M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen|Device for regulating the flow rate of a single or multi-stage compressor arrangement, in particular for screw compressors|
    US5967761A|1997-07-15|1999-10-19|Ingersoll-Rand Company|Method for modulation lag compressor in multiple compressor system|
    EP1017433B1|1997-09-24|2014-03-05|The Cleveland Clinic Foundation|Flow controlled blood pump system|
    DE19860639A1|1998-12-29|2000-07-06|Man Turbomasch Ag Ghh Borsig|Method for operating a compressor with a downstream consumer, and system operating according to the method|
    CA2301415A1|1999-04-19|2000-10-19|Capstone Turbine Corporation|Helical flow compressor/turbine permanent magnet motor/generator|
    US20040173379A1|2003-03-04|2004-09-09|Sandvik Ab|Hydraulically-operated control system for a screw compressor|
    DE102017107602B3|2017-04-10|2018-09-20|Gardner Denver Deutschland Gmbh|Compressor system with internal air-water cooling|
    DE102017107601B4|2017-04-10|2019-11-07|Gardner Denver Deutschland Gmbh|Method for controlling a screw compressor|
    DE102017107599A1|2017-04-10|2018-10-11|Gardner Denver Deutschland Gmbh|Pulsation silencer for compressors|
    CN109578296B|2017-09-29|2021-02-05|中国石油化工股份有限公司|Automatic energy-saving control method for constant-rotating-speed centrifugal compressor|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19772737677|DE2737677C2|1977-08-20|1977-08-20|Device for regulating the flow rate of compressors|
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