Combustor control system

Abstract

The utility model relates to a combustor control system, which comprises a combustor, a PLC (programmable logic controller), an ignition controller and an ignition transformer, the combustor is connected with a natural gas pipe and an air pipe, the air pipe is connected to a fan, the PLC is connected to a remote terminal and is in communication connection with the remote terminal, the natural gas pipe is provided with an electromagnetic valve and an electric control regulating valve A, and the electric control regulating valve A is connected with the ignition transformer. The air pipe is provided with an electric control regulating valve B, a linkage connecting rod is arranged between the two electric control regulating valves, the PLC is in signal connection with the electric control regulating valve A and the ignition controller, the ignition controller is in signal connection with the ignition transformer, the ignition transformer is connected with an ignition electrode of the combustor, and the ignition controller comprises a control unit and a detection unit. The control unit is in signal connection with the electromagnetic valve and the fan. The detection unit is used for detecting whether flames exist in the combustor or not. According to the utility model, the ignition process is dynamically associated with gas supply and air supply, and the ignition failure can be timely displayed and alarmed.

Description

TECHNICAL FIELD

[0001] The utility model relates to burner technical field, specifically a kind of burner control system. BACKGROUND

[0002] Some combustion furnace, heating furnace and other furnace type need to use burner, burner is used to produce flame continuously in furnace body, the following problems exist in the use of existing burner: ignition process lacks dynamic correlation with gas supply and air supply, gas leakage or ignition failure is prone to occur;And there is no immediate prompt after ignition failure, which is not conducive to timely processing and correct response to failure. SUMMARY

[0003] The utility model mainly aims at solving the above-mentioned prior art problems, and provides a kind of burner control system.

[0004] The specific scheme of the utility model is: a kind of burner control system, including burner, burner is connected with natural gas pipe and air pipe, air pipe is connected to fan, further including PLC controller, ignition controller, ignition transformer, the PLC controller is connected to remote terminal, PLC controller is connected between remote terminal, electromagnetic valve and electric control regulating valve A are equipped on the natural gas pipe, electric control regulating valve B is installed on the air pipe, linkage connecting rod is installed between two electric control regulating valves, the PLC controller is signal connected with electric control regulating valve A and ignition controller, ignition controller is signal connected with ignition transformer, ignition transformer is connected with the ignition electrode of burner, the ignition controller includes control unit and detection unit, control unit is signal connected with the electromagnetic valve and fan respectively, detection unit is used to detect whether there is flame in burner.

[0005] Further, the PLC controller is connected to the remote terminal, and the PLC controller is communicatively connected between the remote terminal.

[0006] Further, the control unit is provided with a timer, and the timer is used to time the start time of the fan during ignition.

[0007] Further, the natural gas pipe is provided with a manual ball valve.

[0008] Further, the detection unit includes a flame detection sensor, and the ignition controller is further connected with an alarm, and the alarm is signal connected with the control unit.

[0009] Further, the flame detection sensor uses an ultraviolet sensor or an infrared sensor.

[0010] Compared with the prior art, the utility model has the following advantages: the ignition process has dynamic correlation with gas supply and air supply, and when ignition fails, it can be displayed in the remote terminal in time and an alarm is sent to prompt. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the connection diagram of the utility model;

[0012] In the figure: 1, burner; 2, ignition transformer; 3, electromagnetic valve; 4, electric control regulating valve A; 5, manual ball valve; 6, fan. DETAILED DESCRIPTION

[0013] Referring to Figure 1 , the embodiment is a kind of burner 1 control system, including burner 1, burner 1 is connected with natural gas pipe and air pipe, air pipe is connected to fan 6, still including PLC controller, ignition controller, ignition transformer 2, the PLC controller is connected to remote terminal, communication connection between PLC controller and remote terminal, the natural gas pipe is equipped with electromagnetic valve 3 and electric control regulating valve A 4, the air pipe is equipped with electric control regulating valve 4B, linkage connecting rod is equipped between two electric control regulating valves, the PLC controller is connected with electric control regulating valve A 4 and ignition controller signal, ignition controller is connected with ignition transformer 2 signal, ignition transformer 2 is connected with the ignition electrode of burner 1, the ignition controller includes control unit and detection unit, control unit is connected with the signal of electromagnetic valve 3 and fan 6 respectively, detection unit is used to detect whether burner 1 has flame.

[0014] Further, the PLC controller is connected to remote terminal, communication connection between PLC controller and remote terminal.

[0015] Further, the control unit is equipped with timer, and timer is used to start time clock of fan 6 when igniting.

[0016] Further, the natural gas pipe is equipped with manual ball valve 5, manual ball valve 5 is always opened when normal work, and manual ball valve 5 is closed when needing to overhaul or long time shutdown.

[0017] Further, the detection unit includes flame detection sensor, the ignition controller is also connected with alarm, alarm is connected with control unit signal, alarm adopts audible and visual alarm, to prompt on-site maintenance personnel in first time.

[0018] Further, the flame detection sensor adopts ultraviolet sensor or infrared sensor.

[0019] The utility model discloses the working principle as follows: the operator clicks the ignition button in the computer picture, and the PLC receives the ignition instruction and first adjusts the electric control governing valve A4 opening to 12%, simultaneously, the PLC transmits the instruction analysis to the ignition controller, and the ignition controller receives the ignition instruction, and the control unit sends the signal to the fan 6 and starts to blow and clean simultaneously, and the timer carries out timing, and after timing 5 seconds, sends the signal to the electromagnetic valve 3 and the ignition transformer 2 and carries out ignition, and the detection unit detects whether the burner 1 has the flame after ignition, if shows the flame, then this time ignition succeeds, and the ignition controller returns the signal of ignition success to the PLC and finally shows the flame signal on the remote terminal computer display screen, and the subsequent combustion machine adjusts the electric control governing valve A4 according to PID, and the electric control governing valve A4 drives the electric control governing valve B through the linkage connecting rod synchronous belt, realizes the control flame temperature and the flame size. If the detection unit cannot detect the flame, then the ignition fails, at this time, the ignition controller outputs the extinguishing alarm signal to the PLC and simultaneously triggers the alarm of the scene and issues the alarm to remind the scene processing, and the PLC transmits the extinguishing signal to the remote terminal computer and displays the extinguishing, and after the remote terminal operating system resets, can ignite again.

Claims

1. A burner control system comprising a burner, the burner having a natural gas pipe and an air pipe connected thereto, the air pipe being connected to a fan, characterized in that: It also includes PLC controller, ignition controller, ignition transformer, the PLC controller is connected to remote terminal, communication connection between PLC controller and remote terminal, the natural gas pipe is equipped with electromagnetic valve and electric control regulating valve A, the air pipe is equipped with electric control regulating valve B, the linkage connecting rod is equipped between two electric control regulating valves, the PLC controller is signal connected with electric control regulating valve A and ignition controller, the ignition controller is signal connected with ignition transformer, the ignition transformer is connected with the ignition electrode of burner, the ignition controller includes control unit and detection unit, the control unit is signal connected with electromagnetic valve and fan respectively, the detection unit is used for detecting whether the burner has flame.

2. A burner control system according to claim 1, characterised in that: The control unit is provided with timer, and the timer is used for timing the starting time of the fan when ignition.

3. A burner control system according to claim 1, characterized in that: The natural gas pipe is equipped with manual ball valve.

4. A burner control system according to claim 1, characterized in that: The detection unit includes flame detection sensor, the ignition controller is also connected with alarm, and the alarm is signal connected with the control unit.

5. A burner control system according to claim 4, characterised in that: The flame detection sensor adopts ultraviolet sensor or infrared sensor.

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