• 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:
    1512485 Servomotor systems in pipe fracture safety device P D RASSPE 21 April 1976 [19 Sept 1975] 16068/76 Heading G3P In a pipe fracture safety device, the connection of actuator means (4), for operating a shut-off valve (3) in a main pipe-line, to the main pipe-line upstream of the valve (3) is controlled by a differential pressure valve 10, the drive mechanism of which comprises a piston 40 movable within a housing defining two chambers 41, 45 and having two inlets which are connected via branch lines 29, 30 with the main pipe-line downstream of the valve (3), a throttle (31) and time-delay reservoir (32) being provided in the branch line 30; during normal operation of the main pipe-line system the piston 40 is held against an annular surface 42 between the two chambers 41, 45 which are of different diameters, the pressure difference across the piston as the result of different areas of the piston being exposed to the chambers 41, 45 being sufficient to counterbalance the force exerted by a spring 47 which urges the piston towards the chamber 45 which communicates with the inlet 30. On occurrence of a fracture in the main pipe-line, the pressure in chamber 41 will fall immediately, and after a time delay the pressure in chamber 45 will fall until the pressure difference across the piston is no longer sufficient to prevent the piston from moving towards the right (as viewed in Fig. 2) under the action of the spring 47. Such movement of the piston switches the valve 10 to permit actuation of the means (4) to close the valve (3).
    公开号:SU747441A3
    申请号:SU762345703
    申请日:1976-04-15
    公开日:1980-07-23
    发明作者:Шмитц Херманн
    申请人:П.Д. Расспе Зене (Фирма)；
    IPC主号:
    专利说明:

    FIG. 1 shows a diagram of a proposed natural gas control system into a gas pipeline; in fig. 2 is a longitudinal section of a differential pressure valve. The system for regulating the supply of Natural gas to the gas pipeline 1 {: the direction of gas flow is indicated by the A-switch bar) includes a shut-off ball valve 2 installed on the gas pipeline, actuated by a valve 3, made in the form of a two-sided acting organ, Tsego of a cylinder with a piston , for example, on a piston rod, a toothed rack interacting with a pinion gear (not shown) that is connected to a shut-off valve. The system also includes a control device, made in the form of a differential pressure valve 4, One side of which is connected to the pipeline with the lower pressure side by pipeline 5 and b, the other side with pipeline 7 from the higher pressure side 7, and located between and differential pressure valve pressure accumulator 9. Differential pressure valve 4 is made (Fig. 2) in the form of a spool valve, spool 10 through switching element 11 and pipe 12 working This pressure is connected to the gas pipeline 1 by control valves 13 and 14, and is supplied with a live pipe 15. The control valves 13 and 14 consist of two two-position valve elements, one of which is equipped with a distribution valve 16 installed in the pipe 17 between it and place 18 of the intake of gas from the pipeline 12 of the working pressure and connected through the pipeline 19 with the differential pressure valve 4, and the second one with a two-way valve OR 20, one input of which is connected by a pipe 21 to the differential pressure valve, the other through a branch pipe 22 - with the pipeline 12, the working pressure is about the pressure at the gas inlet 23, and the outlet is with the second two-position valve element of the controlled valve 14. The solenoid valves 24, 25 are installed in the sockets 17, 22 connected with the two-position valve elements of the controlled valves 13, 14. Controlled valve 13 communicates with gas intake 26 via pipeline 27 and through pipeline 28 with a receiver 29 filled with liquid and connected to the actuator 3 of shut-off valve 2. Control valve 14 through tube 30 communicates with the place of 31 gas intake and through t uboprovod 32 - to a receiver 33, also filled with liquid and associated with actuator locking valve 3. Pumps 34, 35 and valves 36, 37 are installed in the supply lines of the receivers to the actuator 3. Gas pipeline 1 is also provided with pipes 38, 39 for sampling natural gas, located 1 and above and below the shut-off valve 2, communicating with the OR 40 valve, which through a filter 41 is connected to a pipeline 12 of operating pressure. The system works as follows. Under normal operating conditions of the system, the actuator 3 of the shut-off valve 2 is actuated directly by the gas pressure of the pipeline. Natural gas is withdrawn from the pipeline from two places located above and below the shut-off valve 2, and passes through the valve OR 40 and the filter 41 to the pipeline 12 of the working pressure. Normally opening and closing the shut-off valve 2 (regardless of the emergency). produced by means of electromagnetic valves 24, 25. When pressure is applied through the nozzle 17, the two-position valve element of the controlled valve 13 switches and directs pressure into the pipe 12 of the working pressure from the intake point 26 through pipelines 27, 28 in. Receiver 29, in which the pressure natural gas is transferred to the hydraulic fluid driving the actuator 3. The on / off valve element of the controlled valve 14 then directs the pressure taken from the gas intake point 31 through the nozzle 30 to the receiver 33 and, like in receiver 29, the pressure of natural gas is transformed into the pressure of the hydraulic fluid with which the receiver is filled to activate the actuator 3 of the shut-off valve 2. Typically, the electromagnetic valves 24.25 are in the closed position. When the electromagnetic valve 24 is actuated, the actuator 3 opens the shut-off valve 2, and when the electromagnetic valve 25 is actuated, the shut-off valve 2 closes. To ensure the shut-off valve operates in the absence of voltage to actuate the electromagnetic valves 24, 25, pumps 34, 35 after closing the valves 36, 37, the hydraulic fluid from the receivers 29, 33 is pumped to one or the other side of the actuator 3. In the event of an emergency, such as a rupture of the pipeline, gas is directed through the guide 6, located relative to the shut-off valve 2 downstream on both sides of the differential pressure valve 4, on one side
    branch 5 is transmitted to the pressure drop through the pipeline, and through pipeline 7 to the other. When pressure in pipeline 6 drops, pressure accumulator 9 maintains pressure in pipeline 7, while the rate of pressure maintenance depends on the capacity of pressure accumulator and throttle adjustment 8.
    The operation of the actuator 3 for the shut-off valve 2 is performed by switching the differential pressure valve 4, the spool 10 of which is moved by the action of the spring 15 to the left or right depending on the pressure of the gas supplied to the pipelines 5 and 7. The differential pressure valve 4 guides the gas in the pipeline working pressure 12 and through the pipeline 19 - in the distribution valve 16. When switching the control valve 16 removes the working pressure from the controlled valve 13, so that it returns It grows due to the pressure applied through the pipeline (indicated by a dotted line in FIG. 1) to the locking position. If the electromagnetic valve 24 was not actuated, the control valve 13 remains on while the distribution valve 16 is operating.
    Through pipe 21, the gas is directed through a two-way valve OR 2 (the controlled valve 14 turns on and switches it, actuated by the actuator 3 of the shut-off valve 2, with which it is connected through pipeline 32.
    the invention
    Formula
    A system for controlling the supply of natural gas to a gas pipeline, including a stop valve with an actuator installed on the gas pipeline, a control device made in the form of a differential pressure valve, one side of which is connected to the gas pipeline from the lower pressure side, the other side contains a throttle between them and differential pressure valve
    pressure accumulator, with a gas pipeline from the higher pressure side, and control valves connected to the drive of the shut-off valve and gas pipeline, characterized by
    so that, in order to automate the process of regulation, the differential pressure valve is designed as a spool valve, the valve of which is connected through a switching valve and a pipeline of working pressure to a gas pipeline and controllable valves, consisting of two-position valve elements, one of which fitted with a dispensing valve installed in
    5 a pipe between it and the gas intake point from the working pressure pipeline and communicating with a differential pressure valve, and a second two-way valve, one inlet of which is connected to a differential pressure valve, the other through a connecting pipe to a working pressure pipeline, and an outlet with the second two-position valve element at
    In this case, electromagnetic valves are installed in the above-mentioned pipes, and they are connected with two-way valve elements of controlled valves.
    0 Sources of information
    taken into account in the examination
    1. US patent No. 2836192, cl. 137-488, publ. 1956
    权利要求:
    Claims (1)
    [1]
    Claim
    A system for regulating the supply of natural gas to a gas pipeline, including a shut-off valve with an actuator installed on the gas pipeline, a control device made in the form of a differential pressure valve, one side of which is connected by a pipeline to the gas pipeline from the lower pressure side, and the other by a pipeline containing a throttle and located between with them and a differential pressure valve, a pressure accumulator, with a gas pipe from the higher pressure side, and associated with a shut-off valve actuator and a gas pipe valves, characterized in that, in order to automate the regulation process, the differential pressure valve is made in the form of a spool valve, the spool of which is connected through a switching valve and a working pressure pipe to the gas pipeline and controlled valves, · consisting of on-off valve elements, one of which is equipped with a distribution valve installed in the pipe between it and the gas intake point from the working pressure pipeline and communicating with the differential pressure valve, and the second uhhodovym valve, one input of which is connected to the pressure differential valve, the other by a pipe - to the pipeline operating pressure, and output - with the second on-off valve member when. this in the mentioned nozzles are installed electromagnetic valves, and associated with the on-off valve elements of the controlled valves.
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR2324982B3|1978-12-29|
    DE2541734C2|1985-04-18|
    NL7603344A|1977-03-22|
    CA1041401A|1978-10-31|
    ATA215876A|1982-02-15|
    FI761070A|1977-03-20|
    JPS5239817A|1977-03-28|
    AT368617B|1982-10-25|
    JPS5952314B2|1984-12-19|
    DD124265A5|1977-02-09|
    IT1054079B|1981-11-10|
    FR2324982A1|1977-04-15|
    US4100932A|1978-07-18|
    GB1512485A|1978-06-01|
    DE2541734A1|1977-03-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    US2849987A|1953-04-13|1958-09-02|Shafer Valve Co|Hydraulic valve operator control system|
    GB869635A|1956-10-17|1961-06-07|Shafer Valve Co|Hydraulic control system for the automatic reopening of a pipe line valve|
    US2836192A|1956-10-17|1958-05-27|Shafer Valve Co|Automatic reopening system for pipe line valve|
    DE2143698A1|1971-09-01|1973-07-26|Dynamit Nobel Ag|EXTRUDED PROFILES, PREFERABLY MADE OF A THERMOPLASTIC PLASTIC, FOR FRAMES AND SASH FRAMES OF SLIDING WINDOWS, SLIDING DOORS OR THE LIKE|
    US3788341A|1972-05-04|1974-01-29|Southwestern Mfg Co|Pressure responsive valve system|CN1148524C|2000-03-27|2004-05-05|曾祥炜|A pipe burst protect device|
    GB2437306B|2006-04-22|2010-07-07|Sam Mather|Autonomous shut-off valve system|
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    CN101979901A|2010-10-11|2011-02-23|吴广祥|Device for automatically closing pipeline during burst of pressure container or pressure pipeline|
    GB201105340D0|2011-03-30|2011-05-11|Airbus Operations Ltd|Conduit protection system and method|
    CN103742786B|2014-01-20|2016-09-07|辰一石油天然气工程技术有限公司|Security system is clashed in motor liquified gas combustion gas|
    CN104235477B|2014-09-04|2016-05-25|天津百利展发集团有限公司|The valve of intelligence thread-changing with pressure|
    US10527216B2|2016-10-24|2020-01-07|Lorax Systems Inc.|Fluid delivery line assembly with shut-off valve assembly|
    RU2714466C2|2018-01-16|2020-02-17|Общество с ограниченной ответственностью "Газпром трансгаз Казань"|Bypass connection of cranes on main gas pipelines, used to prevent catastrophic development of emergency situation in case of integrity failure of main gas line to provide crane with pulse gas in emergency situations and for its use as pulsed gas accumulator|
    CN109442214B|2018-10-24|2021-04-09|浙江浙能天然气运行有限公司|Gas transmission method for natural gas station|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2541734A|DE2541734C2|1975-09-19|1975-09-19|Pipe rupture safety device|
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