• 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:
    Arrangement for the regulation of the height of a liquid level, such arrangement being particularly suitable for the removal of condensate from the regeneration heaters of steam turbines. The arrangement includes a transmitter nozzle for forming a gas-liquid mixture in a first, influx chamber communicating with a tank containing the liquid, a second chamber connected with the influx chamber and containing a two-phase outlet sensor which separates the gas in the gas-liquid mixture, and a system for discharging liquid from the tank including a discharge valve controlled by the pressure of the liquid in the second chamber.
    公开号:SU1048460A1
    申请号:SU807771431
    申请日:1980-10-22
    公开日:1983-10-15
    发明作者:Йозеф Алтман；Зденек Рот
    申请人:Шкода,Оборовы Подник (Инопредприятие)；
    IPC主号:
    专利说明:

    I10 The invention relates to devices for adjusting the level of a liquid on the principle of jet control and can be used, for example, to regulate the removal of condensate from the regenerative heaters of steam turbines. Level controllers are known using poppa sensors, in which a float rising along with the level rise directly controls the rise of the control valve. Level controllers are also known, based on measuring the pressure of a gas passing through a tube immersed in a liquid, through the open end of which the gas freely barbates through the liquid of the reservoir. An electric probe with an output signal of a current or voltage shaft is also used to measure the level. The level control also uses the principle of jet control, in which the change in dynamic pressure is not caused by the deceleration of a turbulent liquid jet coming out of the feed nozzle and passing through fluid layer. All indicated regulators have a low output power from the sensor, which is insufficient to control the retraction valve. Us-fades. - providing signal amplification, have a complex regulating circuit, which in most cases leads to an insufficiently fast dynamic response of such a circuit to a rapid level change, which leads to level overshooting and an emergency situation requiring shutdown. The level sensor on the principle of jet control provides a sufficient power output for a hydraulic output for direct control of hydraulic servo drives of control valves, but the vapor mixture absorbed by a turbulent liquid jet with non-condensing gas with a direct jet sensor and a hydraulic servo for a long pipeline path, causes control pressure oscillations and deviations in the circuit. Another obstacle is the occurrence of water shock, which occurs when the liquid suddenly stops in a long connecting pipe for draining condensate when the regulator valve is quickly closed. 6O The purpose of the invention is to eliminate the above disadvantages. According to this, the jet liquid level regulator in the tank, C6 holder located in the chamber connected to the tank, has a level sensor with power supply and receiving nozzles located respectively above and below the liquid level, and a separator connected to the regulator installed on the discharge pipe of the tank contains two-phase exhaust probe, tray, diffuser and perforated cabin, one of which is connected to the receiving nozzle, and the other is located in the separator, which is equipped with a two-phase hG. an inlet probe, and in the lower part of the chamber there is a horizontal flow, under the bottom of which there is a diffuser around the receiving probe. The drawing shows a jet regulator for the level of liquid in a reservoir. Inkjet level regulator tank 1, chamber 2 connected to it, in which level sensor 3 is located, having feed nozzle 4 and receiving nozzle S, separator 6 connected by pipeline 7 with control chamber 8 of regulator 9 mounted on branch pipe 10 of tank 1, The receiving nozzle 5 is connected to the separator through a perforated tube 11, and a two-phase discharge probe 12 connects the separator 6 to a channel under the bottom of the tray 13 installed (in the lower part of the chamber 2, B 2, perforations are installed around the supply and receiving nozzles This casing 14, and under the bottom, a diffuser 15 is located around the receiving nozzle. The regulating mechanism 9 is made in the form of a piston 16, the subjugating cavity 17 of which is connected to the outlet pipe 18 installed in it by the spring 19 with a pipe Yu. I The liquid operates as follows. The control turbulent jet of condensate with steam and gas jet flows out of the supply nozzle 4 and interacts with a layer of condensate in a perforated housing 14, into which the condensate enters through chamber 2 and tray 13 from tank 1. Jet mixed with condensate enters the receiving nozzle 5, which has a cylindrical section to stabilize the flow, with part of the jet stream flowing through the diffuser 15 and through the channel under the bottom of the tray 13 back into the tank 1, the mixture is compressed through the perforated tube 11 into the separator 6, into the internal space of which separates the gas and liquid phases and, at steady state, establishes a certain liquid level in the separator at the level of the two-phase discharge probe 12 at the same time. A certain pressure is repressed, which is transferred through conduit 7 to the control chamber 8 above the piston 16. The resultant force; between the condensate pressure on the piston and the spring 18 mixes the regulator, causing a change in the flow through the discharge pipe Yu and, consequently, a change in the level of liquid in the reservoir 1. The pressure under the piston 16 through the tube 19 is equalized with the pressure in the exhaust pipe 10. liquids in the tank) re 1 due to a decrease in inlet and reservoir or an increase in outlet through the branch pipe will cause less condensate flow through tray 13 to chamber 2. A drop in level in chamber 2 will cause a decrease in the level difference s on the perforated casing 14 and decrease flow of fluid into the lane 14 and orirovannogo kozhuka reduction urs; n therein. Resistance to the flow of the jet L1E of the feed cone 4 decreases, the mixture puffing up increases, the pressure in the separator and control chamber 8 rises. The piston 16 moves and reduces the flow area of the regulating member, reducing the flow of fluid from the tank 1. The speed of the piston 16 is determined There is no condensate leakage into the control chamber 8 and the level drop caused by it in the separator 6 In the flow area of the two-phase outlet probe 12, the result is .VV -Mf A | -A ("g level drop of steam and gas basics from the vapor-gas blanket, and reduced outflow of the substance causes a rapid increase in pressure in the separator 6. Such a process with positive feedback increases until the influence of the negative feedback between the regulator lift, flow through the outlet pipe 10 is exceeded at 1, as well as by reducing the flow of the mixture from the level 3 sensor to the separator 6. The dynamic effects of positive feedback can easily be influenced by changing the geometry of the two-phase discharge NDA 12 than opti ziruets dynamic behavior of the control loop. Reducing the occurrence of water shock as a result of the rapid closure of the regulator 9 is accomplished by attaching the sub-piston space with a tube 19 with the DIVING A.1M pipeline, the pressure rises, in the pipeline 10 it is fed into the sub-piston space and reduces the flow rate of condensate. The absence of the influence of mechanical vibrations, radiation background, electromagnetic fields allows the invention to be used in heavy industries for energy and chemical equipment. Its use is especially recommended where it is necessary to regulate the level of a liquid in a small range with a fast dynamic response to changes in the level of a liquid with high reliability, which is ensured by using only mechanically moving parts throughout the entire control loop. Recognized as an invention according to the results of the examination carried out by the Office for the Invention of the Czechoslovak SocioV rlOW / t- i Cll .ao 1. Djf TS. of the Republic of
    权利要求:
    Claims (1)
    [1]
    A LIQUID LIQUID LEVEL CONTROLLER IN A RESERVOIR containing a level sensor located in a chamber connected to the reservoir with a supply and receiving nozzles located respectively above and below the liquid level, and a separator connected to a regulating body installed 1 on the reservoir outlet pipe, characterized in that which contains a two-phase exhaust probe, tray, diffuser and perforated tube, one end of which is connected to the receiving nozzle, and the other is located in the separator, in which the two-phase exhaust ond, and in the lower part of the chamber a tray is horizontally installed, under which a diffuser is located around the receiving nozzle.
    SJ
    1 1048 460 2
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1048460A1|1983-10-15|Jet regulator of liquid level in reservoir
    SU1142724A1|1985-02-28|Device for controlling liquid level in tank
    US5174944A|1992-12-29|Apparatus for separating gas from a liquid
    CN111486101B|2021-08-06|Pressure adjusting system of nuclear main pump experiment table
    SU928315A1|1982-05-15|Float-type gas pressure regulator
    US1697342A|1929-01-01|Liquid-level or other fluid-flow regulator
    SU993216A1|1983-01-30|Device for regulating liquid consumption ratio
    US2491960A|1949-12-20|Automatic feed regulator for boilers
    ES8303651A1|1983-02-01|Regulation valve and pilot valve.
    US3049145A|1962-08-14|Boiler control system
    SU1265710A2|1986-10-23|Automatic device for feeding water into tank
    JPS57146131A|1982-09-09|Sampling device
    SU576578A1|1977-10-15|Fluid stream-type register
    SU1550491A1|1990-03-15|Direct-acting liquid pressure regulator
    RU1835538C|1993-08-23|Gas pressure controller
    JPS562500A|1981-01-12|Supplier of constant flow rate
    JPS5848923A|1983-03-23|High pressure oxidizer
    SU853403A1|1981-08-07|Method and device for checking level of liquid
    SU881688A1|1981-11-15|Flow governor
    SU1264144A1|1986-10-15|System for controlling water level in drum-separator
    SU1007087A1|1983-03-23|Fluid-jet level regulator
    RU2053537C1|1996-01-27|Apparatus for controlling liquid level
    SU485423A1|1975-09-25|The regulator of the level of separation of two liquid media in the tank
    RU2027921C1|1995-01-27|Method of control of heating and supply of heated liquid
    SU914821A1|1982-03-23|Jet pump
    同族专利:
    公开号 | 公开日
    GB2070250B|1984-10-10|
    GB2070250A|1981-09-03|
    CS211666B1|1982-02-26|
    FR2476869A1|1981-08-28|
    FR2476869B3|1983-08-19|
    US4345618A|1982-08-24|
    HU189486B|1986-07-28|
    DE3039251A1|1981-09-03|
    DD160445A3|1983-08-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR393112A|1907-08-02|1908-12-14|United Shoe Machinery Co Fr|Improvements to the machines used in the manufacture of shoes|
    GB968294A|1962-02-28|1964-09-02|Avery Hardoll Ltd|Improvements in or relating to automatic liquid flow arresting means|
    US3269404A|1962-12-03|1966-08-30|Parker Hannifin Corp|Automatic shutoff valve|
    US3526276A|1968-11-15|1970-09-01|Sun Oil Co|Fluid separator with delayed response liquid level control device|
    US4024887A|1975-11-24|1977-05-24|Vought Corporation|Automatic valving system|
    US4161188A|1977-12-02|1979-07-17|Parker-Hannifin Corporation|Jet type liquid level sensor and system|US4515178A|1984-05-29|1985-05-07|Campau Daniel N|Liquid level control device|
    US4522228A|1984-06-12|1985-06-11|Campau Daniel N|Fluidic level control system|
    JPS61173821A|1985-01-24|1986-08-05|Amada Co Ltd|Electric discharge machine|
    US5285812A|1992-09-09|1994-02-15|Hr Textron, Inc.|Jet level sensor for fuel tanks|
    US6837263B2|2000-10-20|2005-01-04|Distaview Corporation|Liquid level control system|
    US7258130B2|2002-01-15|2007-08-21|Adel Wiggins Group|Integrated jet fluid level shutoff sensor and fuel tank vent for vehicles|
    JP5646524B2|2012-02-27|2014-12-24|株式会社東芝|Carbon dioxide separation and recovery system and operation method thereof|
    CN104676080B|2015-02-13|2018-03-23|江苏新美星包装机械股份有限公司|A kind of liquid level control set for adjusting|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CS801294A|CS211666B1|1980-02-26|1980-02-26|Apparatus for fluidization liquid level control|
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