Safety interlocking protection system used for powdered coal pressure gasification process and method

Safety interlocking protection system used for powdered coal pressure gasification process and method

  • CN 102,618,331 B
  • Filed: 12/12/2011
  • Issued: 12/24/2014
  • Est. Priority Date: 12/12/2011
  • Status: Active Grant
First Claim
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1. for a safe cross-linked protective system for powdered coal pressuring gasified technique, it is characterized in that, comprising:

  • Detecting unit (A1), for detecting the abnormal conditions of powdered coal pressuring gasified system (B);

    Described detecting unit (A1) is single sensor, sensor signal enters described control module (A2) by one-in-and-two-out safety barrier or signal distributor, or, the sensor that described detecting unit (A1) is redundancy, sensor signal adopts two logical organizations or three of getting two to get the logical organization of two;

    Control module (A2), for the abnormal conditions detected according to described detecting unit (A1), triggers the corresponding emergency operation described powdered coal pressuring gasified system (B) being carried out to security interlocking protection;

    Described control module (A2) there is program online modification and online under fill function;

    Performance element (A3), for according to described control module (A2) to the triggering of described emergency operation, perform the corresponding emergency operation described powdered coal pressuring gasified system (B) being carried out to security interlocking protection;

    Sequence of events recording (SOE) unit (A4), its resolution reaches 1 millisecond, for obtaining and recording described abnormal conditions, comprise the time that query event occurs, and powdered coal pressuring gasified system (B) other states change caused thus;

    Non-productive operation unit (A5), comprise alarm lamp screen (2), hummer (4), gasification furnace and stop in emergency pilot lamp (5), fine coal to the low by-pass switch (6) of batch can material level, gasification furnace emergency stop push button (7), ann reset button (8), alarming determining button (9), warning test button (10), mute button (11), for investigating operation for user accordingly according to described abnormal conditions;

    Described control module (A2) comprising;

    Gasification system stops in emergency module, through startup procedure and the normal course of operation of gasification system, connects each other with other module of stopping in emergency, and stops for making described powdered coal pressuring gasified system emergency when there is dangerous situation;

    Fine coal burner oxygen system is stopped in emergency module, for after fine coal burner oxygen pipeline opens first stop valve, when there is described fine coal burner oxygen pipeline and the too low dangerous situation of gasification furnace pressure reduction, described powdered coal pressuring gasified system (B) is stopped in emergency;

    Igniting/startup burner oxygen system is stopped in emergency module, for during igniting, startup burner start-up and operation, when hypotensive dangerous situation appears in igniting, the road oxygen pipeline that goes into operation, described powdered coal pressuring gasified system (B) is stopped in emergency;

    Igniter burner stops in emergency module, for during igniter burner start-up and operation, when occurring dangerous situation, described powdered coal pressuring gasified system (B) is stopped in emergency;

    Startup burner stops in emergency module, for during startup burner start-up and operation, makes described powdered coal pressuring gasified system (B) stop in emergency when there is dangerous situation;

    Fine coal burner stops in emergency module, for during fine coal burner start-up and operation, when occurring dangerous situation, described powdered coal pressuring gasified system (B) is stopped in emergency;

    Gasification furnace purges monitoring module, for monitoring the purging replacement process before gasification furnace is driven and the purging replacement process after gasification furnace parking.

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