WO2019010921A1 - Système de surveillance en ligne de soupape de sécurité - Google Patents

Système de surveillance en ligne de soupape de sécurité Download PDF

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Publication number
WO2019010921A1
WO2019010921A1 PCT/CN2017/117155 CN2017117155W WO2019010921A1 WO 2019010921 A1 WO2019010921 A1 WO 2019010921A1 CN 2017117155 W CN2017117155 W CN 2017117155W WO 2019010921 A1 WO2019010921 A1 WO 2019010921A1
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WO
WIPO (PCT)
Prior art keywords
safety valve
sensor
displacement
monitoring system
data
Prior art date
Application number
PCT/CN2017/117155
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English (en)
Chinese (zh)
Inventor
张洪
张郁
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江南大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江南大学 filed Critical 江南大学
Publication of WO2019010921A1 publication Critical patent/WO2019010921A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass

Definitions

  • the invention relates to an online monitoring system for safety valves, belonging to the field of monitoring equipment.
  • Safety valves are automatic valves. They are mainly used in boilers, pressure vessels and pipelines. The control pressure does not exceed the specified value. It plays an important role in protecting people's safety and equipment operation. After the safety valve is used for a long period of time, it is prone to rust. And it can not be completely closed after opening, but the existing safety valve online monitoring system has complex structure and inconvenient use, so design a new type of safety valve online monitoring with simple structure, reliable performance, convenient installation and replacement, and easy batch production. The system is necessary.
  • the technical problem to be solved by the invention is to provide a novel safety valve online monitoring system with simple structure, reliable performance, convenient installation and disassembly, and easy mass production.
  • the technical solution of the present invention is:
  • An online monitoring system for a safety valve includes a safety valve, a sensor, a mechanical fixture, and a data processing module.
  • the sensor includes a displacement sensor and an actuator thereof, an acoustic wave transmitter, and a pressure sensor, wherein the displacement sensor is installed above the safety valve.
  • the pressure sensor is installed on the inlet pipe of the safety valve to measure the pressure value of the safety valve
  • the acoustic wave transmitter is installed on the outlet pipe of the safety valve for collecting the safety valve when it is opened
  • the mechanical clamp is divided into an opening bonnet, a screw, a displacement transmission mechanism, a radial limiting mechanism, and a sensor fixing mechanism, wherein the opening bonnet is used to replace the original bonnet of the safety valve, and is used
  • the set screw is fixed on the safety valve;
  • the displacement transmission mechanism passes through the circular hole at the top of the opening bonnet for connecting the valve stem of the actuator and the safety valve, and transmits the displacement amount when the safety valve is opened to the actuator;
  • the radial limiting mechanism is fixed on the opening bonnet for limiting the radial displacement of the displacement transmitting mechanism and improving the accuracy of the displacement transmitting mechanism;
  • the displacement sensor is fixed above the opening bonnet, and the sensing element on the back of the displacement sensor can measure the movement of the actuator; the data
  • a transmission rod passes through a circular hole at the top of the opening bonnet, and the end of the transmission rod is provided with an internally threaded sleeve, which is fixed by screwing on the external thread of the top end of the safety valve stem; the transmission rod The upper end is provided with external threads, and the sleeve of one splint sleeve is provided with internal threads, and the two are threaded; the splint of the splint sleeve is provided with a through hole, and the actuator has a threaded hole, and the two are screwed.
  • Radial limiting mechanism a flange linear bearing is sleeved on the transmission rod, the bearing body of the flange linear bearing is placed in a circular hole at the top of the opening bonnet, and the flange surface is fixed on the opening bonnet by screws;
  • the inner diameter of the flange linear bearing is equal to the outer diameter of the transmission rod, so that the transmission rod can only move in the axial direction, limit the radial displacement, and improve the transmission precision of the displacement transmission mechanism.
  • Sensor fixing mechanism a flat surface is arranged on the top side of the opening bonnet, and a threaded hole is arranged on the plane, and the lower half of one fixing plate is fixed on the side plane of the opening bonnet by screws, and the fixing plate half is used.
  • the screw is connected to the back side of the displacement sensor such that the displacement sensor is fixed directly above the safety valve; the upper middle portion of the fixing plate is separated by a rectangular groove, so that the actuator can move up and down in the rectangular groove to transmit the displacement amount.
  • Data processing module a gateway through the wireless HART network and sensor networking, the sensor automatically uploads the collected data to a pre-set register in the gateway; at the same time, the gateway is connected to a computer through a network cable, and the monitoring program written by LabVIEW is installed in the computer.
  • the program reads the corresponding register in the gateway to obtain the data of the sensor, and then saves the data in a log file, and can generate a data report file according to the user's operation; and the computer is connected to a GSM module through the data cable.
  • the monitoring software determines whether the state of the safety valve is abnormal according to the data collected by the sensor. If an abnormality occurs, the monitoring program controls the GSM module to send an alarm message to the designated one or more mobile phone numbers.
  • the present invention has the following advantages:
  • the SMS alarm module improves the real-time performance of the monitoring, which is convenient for the management personnel to grasp the abnormal situation of the valve in the first time.
  • the data collected by the wireless HART network is suitable for the occasion where the sensor has a large distribution space.
  • the transmission distance between a single sensor and the gateway is 228m without occlusion.
  • the wireless HART sensor can be used as a relay route.
  • the transmission distance will be expanded by a multiple of 228m, which avoids the need to pre-lay a large number of cables when the existing sensors use wired to transmit data.
  • wireless HART is not susceptible to interference, and will not encounter risks such as aging and damage of data cables.
  • Figure 1 is a schematic diagram of the safety valve online monitoring system.
  • Figure 2 is a schematic view of a portion of a mechanical clamp.
  • Figure 3 is a schematic illustration of an open bonnet.
  • Figure 4 is a partial cross-sectional view of the interior of the apertured bonnet.
  • an embodiment of the present invention is an on-line monitoring system for a safety valve, comprising: a safety valve 6 and a valve stem 19 thereof, an opening bonnet 4, Flange linear bearing 17, transmission rod 16, splint sleeve 15, fixing plate 2, screw 3, screw 5, screw 13, screw 14, screw 18, displacement sensor 1 and its actuator 12, pressure sensor 7, acoustic wave transmission 8, computer 10, gateway 9, and GSM module 11.
  • the opening bonnet 4 replaces the original bonnet of the safety valve 6 and is fixed to the safety valve using a screw 5.
  • the top of the opening bonnet 4 is provided with a circular hole, and the transmission rod 16 passes through a circular hole at the top of the opening bonnet 4, and is connected to the valve stem 19 through a threaded sleeve provided at the end of the transmission rod 16.
  • the flange linear bearing 17 is sleeved on the transmission rod 16, and the bearing body is placed in the circular hole of the opening bonnet 4, and the flange surface is fixed on the threaded hole around the top circular hole of the opening bonnet 4 by using the screw 18.
  • the sleeve of the splint sleeve 15 is internally provided with an internal thread, and the top end of the transmission rod 16 is provided with an external thread, and the two are fixed by screw connection; the splint of the splint sleeve 15 is provided with a circular hole, and the actuator 12 has a thread.
  • the holes are fixed to each other by screws; the side surface of the opening bonnet 4 is provided with a flat surface, and two threaded holes are opened in the plane, and the screw 3 passes through a circular hole in the lower half of the fixing plate 2, and is fixed.
  • the plate 2 is fixed to the side plane of the opening bonnet 4.
  • the upper middle portion of the fixing plate 2 is divided into rectangular grooves and is perpendicular to the clamping plates of the sleeve clamping plate 15 such that the actuator 12 is located in a rectangular groove in the middle of the fixing plate 2.
  • the rear surface of the displacement sensor 1 is provided with four screw holes, which are fixed to the fixed plate 2 by screws 13, and are vertically disposed above the safety valve clamp, while the actuator 12 is located in the groove on the back of the displacement sensor 1.
  • the diameter of the transmission rod 16 is equal to the inner diameter of the flange linear bearing 17, and when the inside of the safety valve 6 is opened by pressure, the valve stem 19 drives the transmission rod 16 and the clamping sleeve 15 so that the actuator 12 is in the displacement sensor 1
  • the sensing element of the back moves vertically in the slot, so that the displacement sensor 1 measures the displacement data of the actuator 12.
  • the flange linear bearing 17 constrains the transmission rod 16 to move only in the axial direction, and discharges the radial displacement of the transmission rod 16 due to vibration, thereby ensuring the accuracy of the opening of the safety valve 6.
  • the displacement sensor 1 is mounted directly above the safety valve 6 for collecting the amount of displacement of the safety valve 6 and automatically transmitting the displacement data to a pre-set register in the gateway 9 via the wireless HART network.
  • the pressure sensor 7 is disposed on the same conduit as the inlet of the safety valve 6, for collecting the pressure experienced by the safety valve 6, and automatically transmitting the pressure data to a pre-set register in the gateway 9 via the wireless HART network.
  • the acoustic wave transmitter 8 is disposed on the pipeline connected to the outlet of the safety valve 6, for collecting noise data emitted when the safety valve 6 is opened and flowing out of the medium, and automatically transmitting the noise data to the gateway 9 through the wireless HART network.
  • the computer 10 is equipped with a monitoring program written by LabVIEW, which reads the registers in the gateway 9 through the data cable, thereby acquiring the data collected by the pressure sensor 7, the displacement sensor 1, and the acoustic wave transmitter 8.
  • the monitoring program in the computer 10 determines whether the safety valve 6 is normal when the pressure is too large according to the pressure value measured by the pressure sensor 7, the displacement value measured by the displacement sensor 1, and the medium flow measured by the acoustic wave transmitter 8. Whether the safety valve 6 is normally closed after the pressure is reduced or below the opening pressure, if an abnormality occurs in the above two cases, the monitoring program automatically generates an alarm information in real time, and controls the GSM module 11 to send the alarm information through the data cable. The time limit of the alarm information is ensured to the specified mobile phone number.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

La présente invention concerne un système de surveillance en ligne de soupape de sécurité, comprenant un chapeau de soupape perforé (4), un palier linéaire de bride (17), une plaque de fixation (2), une barre de transmission (16), un manchon de plaque de serrage (15), un capteur de déplacement (1) et un exécuteur (12), un émetteur d'ondes sonores (8), un capteur de pression (7), une passerelle (9), un ordinateur (10) et un module GSM (11). Le chapeau de soupape perforé (4), le palier linéaire de bride (17), le manchon de plaque de serrage (15) et la barre de transmission (16) sont mutuellement raccordés et fixés sur une soupape de sécurité (6) ; le capteur de déplacement (1) et l'exécuteur (12) sont fixés sur la soupape de sécurité (6) au moyen de la plaque de fixation (2) et du manchon de plaque de serrage (15) ; le capteur de pression (7) et l'émetteur d'ondes sonores (8) sont respectivement connectés à l'entrée et à la sortie de la soupape de sécurité (6) ; les trois capteurs forment un réseau avec l'ordinateur (10) au moyen de la passerelle (9) ; l'ordinateur (10) reçoit des données des capteurs, détermine l'état de la soupape de sécurité (6), et envoie un message court d'alarme à un numéro de téléphone mobile attribué au moyen du module GSM (11) si une situation anormale se produit. L'état d'ouverture de la soupape de sécurité (6) peut être surveillé en temps réel, et une alarme peut être envoyée lorsque la soupape de sécurité (6) présente une situation anormale. De plus, l'installation est simple, et la fiabilité est élevée.
PCT/CN2017/117155 2017-07-11 2017-12-19 Système de surveillance en ligne de soupape de sécurité WO2019010921A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710559808.7 2017-07-11
CN201710559808.7A CN107219072A (zh) 2017-07-11 2017-07-11 安全阀在线监控系统

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WO2019010921A1 true WO2019010921A1 (fr) 2019-01-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111650254A (zh) * 2020-05-22 2020-09-11 北京海智元科技有限公司 一种燃油水分在线监测装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107219072A (zh) * 2017-07-11 2017-09-29 江南大学 安全阀在线监控系统
CN107883056B (zh) * 2017-12-13 2024-04-12 四川安测科技有限公司 安全阀实时在线监测系统及安全阀泄漏监测方法
CN110044603B (zh) * 2019-04-30 2024-02-23 深圳市质量安全检验检测研究院 安全阀校验方法及安全阀校验装置

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JPH06167427A (ja) * 1992-11-30 1994-06-14 Fukui Seisakusho:Kk 安全弁のジャッキテスト装置および方法
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CN207019886U (zh) * 2017-07-11 2018-02-16 江南大学 安全阀在线监控系统

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JPH06167427A (ja) * 1992-11-30 1994-06-14 Fukui Seisakusho:Kk 安全弁のジャッキテスト装置および方法
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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