CN201662086U - Program controller type ignition control device of steam injection boiler - Google Patents

Abstract

The utility model relates to a program controller type ignition control device of a steam injection boiler, which is used for ignition control of the steam injection boiler. The program controller type ignition control device comprises an actuating mechanism, a programmable controller, a touch screen, an ignition program controller, a burner blower motor, an ignition transformer, a main fuel valve, a limiter switch, an interlocking device, a safety startup checking device, a flame detector and a burner; wherein the ignition program controller is a core component controlling sequential ignition and flame monitoring of a steam injection boiler, and the programmable controller and the touch screen are key components for monitoring operation of the ignition program controller of the system, a plunger pump frequency converter and monitoring instruments and systems on the site; and the components are connected through circuits. The utility model solves the problems of the prior art that the extinguishment can frequency occur when the fuel medium burns in the steam injection boiler, and that the flame is not stable, thereby causing hidden safety risks. Therefore, the utility model can be widely applied in ignition control of the steam injection boiler.

Description

Injection boiler programmer ignition control device

Technical field:

The utility model relates to the injection boiler programmer ignition control device that a kind of injection boiler IGNITION CONTROL is used.

Background technology:

At present, the fuel oil steam injection boiler device that extensively adopt in domestic each oil field, employing be that PLC directly controls the ignition of the boiler operation.In this case, the oily medium that burns in injection boiler fire extinguishing occurs through regular meeting, and flame instability is simultaneously because these destabilizing factors make that annotating vapour station boiler exists serious potential safety hazard.The Liaohe Oil Field is the thickened oil recovery oil field of China's maximum, and the exploitation of steam technology is ripe, and more and more higher to the service requirement of injection boiler, for this reason, we have been developed into injection boiler programmer ignition control device, and are better through trial effect.

The utility model content:

The purpose of this utility model provides a kind of injection boiler programmer ignition control device, this device solves the oily medium that burns in the injection boiler that exists in the prior art fire extinguishing appears through regular meeting, there is the problem of potential safety hazard in flame instability.

The technical scheme that its technical problem that solves the utility model adopts is: injection boiler programmer ignition control device, by executing agency, Programmable Logic Controller (PLC), touch-screen (HMI), ignition procedure device: combustor blast motor, ignition transformer, main combustion valve, killer swich, interlock, clean boot testing fixture, flame detector; Burner is formed: the ignition procedure device is the core parts of the igniting of control injection boiler sequencing, flame supervision, and Programmable Logic Controller (PLC), touch-screen (HMI) are the critical elements that realization is monitored system's igniting programmer, plunger displacement pump frequency converter, on-the-spot each measuring instrument system operation; Connect with circuit between each element; Its system architecture: the temperature of boiler each several part, pressure and other parameters sensor connect the analog quantity input module of PLC, switching value connects the PLC digital quantity input module, analog quantity output and digital quantity output module are controlled corresponding executing agency, comprise the start and stop of ignition procedure device.Serial port on the PLC connects touch-screen (HMI), realizes that systematic parameter is regulated and demonstration.During work, the program that weaves is write Programmable Logic Controller (PLC) and touch-screen respectively, open by Programmable Logic Controller (PLC) control igniting programmer, again by degree of cure, the higher ignition procedure device of stability is realized system's sequencing igniting, flame supervision, system status indication, system diagnostics and trouble hunting, the safety and stability when guaranteeing the fuel oil steam injection boiler operation.PLC makes corresponding processing according to temperature sensor, pressure sensor, combustible gas detector and respective switch signal feedback to the control object in this process; PLC communicates by letter the running status that real-time display system is current by corresponding communications protocol with touch-screen (HMI).

The beneficial effects of the utility model are: owing to adopt degree of cure, the higher ignition procedure device of stability has been realized system's sequencing igniting, flame supervision, system status indication, system diagnostics and trouble hunting, safety and stability when guaranteeing the fuel oil steam injection boiler operation, prolonged boiler service life, significantly reduce fire-putting-out emergency, by the chain warning blowing out of control realization automatically, improved the security of boiler operatiopn simultaneously.

Description of drawings:

Fig. 1 is the utility model injection boiler control block diagram.

Fig. 2 is the utility model ignition procedure device working state schematic representation.

Among the figure 1, executing agency, 2, Programmable Logic Controller (PLC), 3, touch-screen (HMI), 4, the ignition procedure device: 4.1, the dynamo-electric motivation of combustor blast, 4.2, ignition transformer, 4.3, main combustion valve, 4.4, killer swich, 4.5, interlock, 4.6, the clean boot testing fixture, 4.7, flame detector, 5, burner.

The specific embodiment:

In the accompanying drawings, injection boiler programmer ignition control device, by executing agency 1, Programmable Logic Controller (PLC) 2, touch-screen (HMI) 3, ignition procedure device 4: the dynamo-electric motivation 4.1 of combustor blast, ignition transformer 4.2, main combustion valve 4.3, killer swich 4.4, interlock 4.5, clean boot testing fixture 4.6, flame detector 4.7, burner 5 is formed: ignition procedure device 4 is the igniting of control injection boiler sequencing, the core parts of flame supervision, Programmable Logic Controller (PLC) 2, touch-screen (HMI) the 3rd is realized the igniting programmer to system, the plunger displacement pump frequency converter, the critical elements that on-the-spot each measuring instrument system operation is monitored; Connect with circuit between each element; Its system architecture: the temperature of boiler each several part, pressure and other parameters sensor connect the analog quantity input module of PLC2, switching value connects the PLC2 digital quantity input module, analog quantity output and digital quantity output module are controlled corresponding executing agency, comprise the start and stop of ignition procedure device 4.Serial port on the PLC2 connects touch-screen (HMI) 3, realizes that systematic parameter is regulated and demonstration; From touch-screen (HMI) 3 systematic parameter is set, by serial port parameter is reached PLC2, programmer and instrument and meter executing agency are sent in the instruction that PLC2 will receive, by the igniting of ignition procedure device control burner sequencing, flame supervision, with signal back PLC2, PLC2 is illustrated in feedback information on the touch-screen 3 by serial port more simultaneously.

In Fig. 2, the ignition procedure device is made of the dynamo-electric motivation 4.1 of combustor blast, ignition transformer 4.2, main combustion valve 4.3, killer swich 4.4, interlock 4.5, clean boot testing fixture 4.6, flame detector 4.7.Ignition procedure device 4 modules are core design with the microprocessor, light a fire automatically in conjunction with burner.The ignition procedure device started (only power supply) after at first PLC2 sent enabling signal, interlock 4.5 beginning self checks, and flame detector starts safety inspection, begins the prepurge → fire foundation → master combustion fire that ignites according to program curing and sets up, put into operation.Flame detector carries out the flame effect in the running, flame failure occurs and in time feeds back to system, is handled accordingly by control module.

Claims (1)

1. injection boiler programmer ignition control device, by executing agency (1), Programmable Logic Controller (2), touch-screen (3), ignition procedure device (4), burner (5) is formed, wherein ignition procedure device (4) comprises combustor blast motor (4.1), ignition transformer (4.2), main combustion valve (4.3), killer swich (4.4), interlock (4.5), clean boot testing fixture (4.6), flame detector (4.7), it is characterized in that: ignition procedure device (4) is the igniting of control injection boiler sequencing, the core parts of flame supervision, Programmable Logic Controller (2), touch-screen (3) is to realize the igniting programmer to system, the plunger displacement pump frequency converter, the critical elements that on-the-spot each measuring instrument system operation is monitored; Connect with circuit between each element; Its system architecture: the temperature of boiler each several part, pressure parameter sensor connect the analog quantity input module of Programmable Logic Controller (2), switching value connects the digital quantity input module of Programmable Logic Controller (2), analog quantity output and digital quantity output module are controlled corresponding executing agency, comprise the start and stop of ignition procedure device; Serial port on the Programmable Logic Controller (2) connects touch-screen (3), realizes that systematic parameter is regulated and demonstration; From touch-screen (3) systematic parameter is set, by serial port parameter is reached Programmable Logic Controller (2), programmer and instrument and meter executing agency are sent in the instruction that Programmable Logic Controller (2) will be received, by the igniting of ignition procedure device control burner sequencing, flame supervision, with signal back Programmable Logic Controller (2), Programmable Logic Controller (2) is illustrated in feedback information on the touch-screen by serial port more simultaneously; Ignition procedure device (4) module is core design with the microprocessor, lights a fire automatically in conjunction with burner; The ignition procedure device started after at first Programmable Logic Controller (2) sent enabling signal, interlock (4.5) beginning self check, and flame detector starts safety inspection, begins the prepurge → fire foundation → master combustion fire that ignites according to program curing and sets up, put into operation; Flame detector in the running (4.7) carries out the flame effect, flame failure occurs and in time feeds back to system, is handled accordingly by control module.

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