CN217057593U - Heating furnace burner interlocking protection system - Google Patents
Heating furnace burner interlocking protection system Download PDFInfo
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- CN217057593U CN217057593U CN202220308762.8U CN202220308762U CN217057593U CN 217057593 U CN217057593 U CN 217057593U CN 202220308762 U CN202220308762 U CN 202220308762U CN 217057593 U CN217057593 U CN 217057593U
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Abstract
The utility model discloses a chain protection system of heating furnace combustor belongs to heating furnace combustor protection system technical field, include electronic control cabinet, gas supply pipeline, ignition system and install the temperature transmitter on the heating furnace, the gas supply pipeline includes lower branch road air supply line and bypass air supply line, and wherein lower branch road air supply line is normal air supply line, and the bypass air supply line is reserve pipeline, and its beneficial effect lies in: the utility model discloses a PLC controller realizes the auto-ignition and the time delay ignition of heating furnace combustor, big fire/small fire conversion, automatic start-stop, overtemperature alarm, ignition malfunction alerting, flame real time monitoring, flame extinguish gas automatic cutout protection and alarming function, and degree of automation is high, and is safe in utilization, can satisfy open-air operation requirement, has realized the intercommunication upload of field data and master control room through remote communication module simultaneously, and the later stage control system's of being convenient for upgrading is maintained.
Description
Technical Field
The utility model belongs to the technical field of heating furnace burner protection system, concretely relates to chain protection system of heating furnace burner.
Background
At present, when crude oil is processed by an operator, the operator often needs to use an oil field heating furnace, and flame in a hearth cannot be monitored in the actual use process of the existing oil field heating furnace, so that a natural gas source cannot be cut off in time in the combustion process, fuel gas is input into the hearth for a long time, explosion danger is easy to occur after the fuel gas is ignited again, and serious potential safety hazards exist. Therefore, the improvement of the existing heater combustion furnace is of great significance in improving the personal safety of operators and preventing leakage of crude oil and fuel gas.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to, to the problem that exists among the above prior art, a heating furnace combustor chain protection system is provided, automatic ignition and the time delay ignition of heating furnace combustor are realized through the PLC controller, big fire/small fire conversion, automatic start and stop, the excess temperature is reported to the police, ignition malfunction alerting, flame real time monitoring, flame extinguishes gas automatic cutout protection and alarming function, degree of automation is high, safety in utilization, can satisfy open-air operation requirement, the intercommunication upload of field data and main control room has been realized through remote communication module simultaneously, the later stage control system's of being convenient for upgrading is maintained.
In order to achieve the above object, the utility model discloses specifically adopt following technical scheme:
the utility model provides a heating furnace combustor chain protection system, includes electronic control cabinet 14, gas supply pipeline, ignition system and installs the temperature transmitter on the heating furnace, the inlet end of gas supply pipeline is connected with the inlet line through access flange 1, and the end of giving vent to anger of gas supply pipeline is connected with ignition system through exit flange 12, be provided with down branch air supply pipe and bypass air supply pipe between access flange 1 and the exit flange 12, it has intake pressure meter 4, manual air-vent valve 5, electric actuator 6, capsule manometer 7, solenoid valve 8 and stainless steel ball valve 9 to set gradually from the inlet end to the end of giving vent to anger on the down branch air supply pipe, and electric actuator 6 all is connected with electronic control cabinet 14 with solenoid valve 8, be provided with bypass ball valve 11 on the bypass air supply pipe.
And a basket filter 3 and a flange inlet ball valve 2 are arranged on the gas pipelines between the lower branch gas supply pipeline and the inlet connecting flange 1 and between the bypass gas supply pipeline and the inlet connecting flange 1.
The bypass air supply pipeline is a standby pipeline, and a bypass ball valve 11 arranged on the bypass air supply pipeline is in a normally closed state.
The cabinet body is of a double-layer stainless steel structure.
The ignition system comprises a burner, a high-energy ignition gun and an ultraviolet flame monitor, wherein the burner is connected with the gas outlet end of a gas supply pipeline, the high-energy ignition gun is installed on a gas outlet of the burner, an ignition wire is installed inside the high-energy ignition gun, the control end of the ignition wire is connected with a high-energy igniter wiring terminal and a controller in an electronic control cabinet 14, and the ultraviolet flame monitor is in safe linkage with a rotary warning lamp 13 and an electromagnetic valve 8 and is used for detecting the flame running condition in a hearth of the heating furnace.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a PLC controller realizes the auto-ignition and the time delay ignition of heating furnace combustor, big fire/small fire conversion, automatic start-stop, overtemperature alarm, ignition malfunction alerting, flame real time monitoring, flame extinguish gas automatic cutout protection and alarming function, and degree of automation is high, and is safe in utilization, can satisfy open-air operation requirement, has realized the intercommunication upload of field data and master control room through remote communication module simultaneously, and the later stage control system's of being convenient for upgrading is maintained.
Drawings
Fig. 1 is a control schematic block diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of an installation structure of an embodiment of the present invention.
Fig. 3 is a schematic view of an operation panel of the electronic control cabinet according to an embodiment of the present invention.
Fig. 4 is a control flow chart of the embodiment of the present invention.
Figure number and name: the device comprises an inlet connecting flange 1, a flange inlet ball valve 2, a basket filter 3, an air inlet pressure gauge 4, a manual pressure regulating valve 5, an electric actuator 6, a diaphragm capsule pressure gauge 7, an electromagnetic valve 8, a stainless steel ball valve 9, a flame arrester 10, a bypass ball valve 11, an outlet connecting flange 12, a rotary warning lamp 13 and an electronic control cabinet 14.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-3, a heating furnace burner chain protection system, including electronic control cabinet 14, gas supply pipeline, ignition system and install the temperature transmitter on the heating furnace, can realize automatic ignition and time delay ignition, big fire/small fire conversion, automatic start-stop, overtemperature alarm, ignition failure alarm, flame real time monitoring, flame extinguish gas automatic cutout protection and alarming function.
The gas supply system comprises a gas supply pipeline, an ignition system and a bypass gas supply pipeline, wherein the gas inlet end of the gas supply pipeline is connected with the gas inlet pipeline through an inlet connecting flange 1, the gas outlet end of the gas supply pipeline is connected with the ignition system through an outlet connecting flange 12, a lower branch gas supply pipeline and a bypass gas supply pipeline are arranged between the inlet connecting flange 1 and the outlet connecting flange 12, a gas inlet pressure gauge 4, a manual pressure regulating valve 5, an electric actuator 6, a capsule pressure gauge 7, an electromagnetic valve 8 and a stainless steel ball valve 9 are sequentially arranged on the lower branch gas supply pipeline from the gas inlet end to the gas outlet end, the electric actuator 6 and the electromagnetic valve 8 are both connected with an electronic control cabinet 14, and the bypass gas supply pipeline is provided with a bypass ball valve 11.
And a basket filter 3 and a flange inlet ball valve 2 are arranged on the gas pipelines between the lower branch gas supply pipeline and the inlet connecting flange 1, and flame arresters 10 are arranged on the gas pipelines between the lower branch gas supply pipeline and the outlet connecting flange 12.
The lower branch air supply pipeline is a normal air supply pipeline, a stainless steel ball valve 9 arranged on the lower branch air supply pipeline is ensured to be in an open state before equipment is started to operate, the bypass air supply pipeline is a standby pipeline, and a bypass ball valve 11 arranged on the bypass air supply pipeline is in a normally closed state.
The cabinet body is double-deck stainless steel construction, can satisfy outdoor open-air operation requirement.
Ignition system includes burner, high energy burning torch and ultraviolet flame monitor, and the burner is connected with the end of giving vent to anger of gas supply line, and the high energy burning torch is installed on the gas export of burner, high energy burning torch internally mounted has the ignition line, and the ignition line control end is connected with high energy point firearm binding post and controller in the electronic control cabinet 14, ultraviolet flame monitor and rotatory warning lamp 13 and the 8 safety chain of solenoid valve for detect the flame operating conditions in the heating furnace, ensure that flame normally burns, can cut off the solenoid valve fast when unexpected flame-out appears, lock the combustor, and send out the acousto-optic warning.
The operating panel is provided with 2 operating switches, 3 operating buttons, 1 touch screen and 3 indicator lamps.
The operating switches comprise an on-site/remote operating switch and a valve 1 operating switch, when the switches are arranged on an on-site gear, the starting and the stopping of the combustor can be controlled by a panel of the electronic control cabinet 14, and when the switches are arranged on a remote gear, the starting and the stopping of the combustor can be controlled by a remote computer; when the switch is set to the 'valve 1' position, the lower branch in the fuel gas supply pipeline automatically cuts off the electromagnetic valve 8 to work, and the upper branch automatically cuts off the electromagnetic valve 8 for standby.
The operating buttons comprise a 'manual start' operating button, a 'manual stop' operating button and an 'emergency stop' operating button.
The touch screen is an HMI touch screen and is used for displaying the real-time running state of the system (running, pre-ventilation, ignition and valve opening), the fault alarm (on fire in the pre-ventilation stage, ignition failure, flameout fault and overtemperature protection) type, the real-time water temperature (DEG C) of the heating furnace and parameter setting (detailed in the parameter setting in the following chapter).
The indicating lamps comprise a power indicating lamp, an operation indicating lamp and an alarm indicating lamp.
As shown in fig. 4, the remote control principle of the present invention is: the main control room sends out a starting signal, the field PLC controller controls the burner to start, automatically ignite (delay ignition), monitor flame in real time, switch combustion load, blow out and alarm at limit overtemperature according to the starting signal sent out by the main control room, when a fault occurs in operation, the field gas valve is automatically cut off, and the alarm is given out in sound and light, and meanwhile, an alarm signal is sent to the main control room; when the temperature of the medium in the furnace reaches the furnace shutdown temperature, the on-site gas valve is automatically cut off and does not give an alarm, and the on-site gas valve is automatically started when the temperature of the medium in the furnace is reduced to the starting temperature; the field electronic control cabinet 14 can realize wireless remote data uploading through a wireless communication module, a hardware communication interface is reserved, and data uploading and master control room signal receiving can be realized in an upgradable mode.
The utility model discloses the theory of operation of each function does among:
1) electronic auto-ignition function
The high-energy ignition gun is adopted for ignition, meanwhile, the time relay controls the electromagnetic valve to open air supply, the ignition safety time is 5 seconds at most, after the high-energy ignition gun is ignited, the electromagnetic valve 8 is opened (the valve opening indicator lamp on the main interface of the touch screen is lightened) and starts to supply air to the hearth, the ignition is carried out within the safety time (the ignition indicator lamp on the main interface of the touch screen is lightened), if the ignition is successful, normal work is carried out (the valve opening indicator lamp and the running indicator lamp on the main interface of the touch screen are lightened), otherwise, the electromagnetic valve 8 is alarmed and closed (the valve opening indicator lamp and the running indicator lamp are extinguished), and air supply to the hearth is immediately stopped.
2) Ultraviolet flame monitoring function
The device is provided with an ultraviolet flame detector, a probe, a control module and the like, monitors the flame operation condition of the hearth, is in safe linkage with the rotary warning lamp 13 and the electromagnetic valve 8 on the electronic control cabinet 14, ensures the normal combustion of flame, can quickly cut off the electromagnetic valve when an accident occurs, locks the combustor, and gives out acousto-optic alarm.
3) Automatic gas cutoff function
The device is equipped with an ultraviolet flame detector, a light detection module is arranged in the electronic control cabinet 14, the flame condition is monitored by controlling the ultraviolet flame detector, and flame monitoring is started after ignition is successful. When the burner is accidentally extinguished, the ultraviolet flame detector cannot detect flame, a signal is sent to control the electromagnetic valve 8 to immediately cut off the gas source, and meanwhile, the electronic control cabinet 14 alarm can give an audible and visual alarm. After the operator on duty hears the alarm, the alarm signal can be eliminated by remote control, and the burner is stopped to run; the electronic control cabinet 14 can be restarted after the cause of the fault is found and the fault is indeed cleared on site.
4) Automatic load regulation (big fire/small fire conversion function)
The combination valve of the working medium temperature and the fuel gas in the heating furnace realizes the interlocking control through the PLC and the temperature control meter, can monitor the change of the working medium temperature in the heating furnace in real time, and can realize automatic furnace starting, big fire/small fire conversion, furnace shutdown and over-temperature alarm when the set furnace starting, big fire/small fire conversion, furnace shutdown and over-temperature alarm temperatures are reached. When the temperature of the working medium in the heating furnace is higher than the set big fire/small fire conversion temperature (set by a temperature control meter), the system turns to small fire, and the regulating valve is regulated to the minimum opening; when the temperature of the working medium in the heating furnace is lower than the set big fire/small fire conversion temperature (set by a temperature control meter), the regulating valve is regulated to be in a normal opening degree. And realize the function of automatically cutting off the air source when the fire is extinguished; when the temperature of the working medium in the heating furnace is higher than the set furnace shutdown temperature (set by a temperature control meter), automatically shutting down the furnace, and when the temperature of the working medium in the heating furnace is lower than the set furnace start temperature (set by the temperature control meter), automatically starting the furnace; when the temperature of the working medium in the heating furnace exceeds the set overtemperature alarm temperature (set on a main interface of an HIM touch screen), the system sends out an overtemperature alarm, the burner is locked, an alarm signal is eliminated on the spot on the electronic control cabinet 14, and the burner is stopped to run; the fault reason needs to be found out on site, and the program can be started again after the fault is actually eliminated.
5) System operation and alarm indication
The system operation indication comprises the following steps: power indication, operation indication, pre-ventilation indication, valve opening indication, ignition indication and working medium temperature (HIM touch screen main interface) display in the heating furnace.
Alarm indication (red indicator): ignition failure indication, flameout fault indication, overtemperature furnace shutdown indication and acoustic alarm.
The above is to the technical scheme that the embodiment of the utility model provides introduces in detail, and it is right to have used specific individual example herein the utility model discloses the principle and the implementation of embodiment have been explained, and the description of above embodiment only is applicable to help understanding the utility model discloses the principle of embodiment.
Claims (7)
1. The utility model provides a heating furnace combustor chain protection system, includes electronic control cabinet (14), gas supply line, ignition system and installs the temperature transmitter on the heating furnace which characterized in that: the gas supply pipeline's inlet end is connected with the inlet line through access flange (1), and the gas supply pipeline's the end of giving vent to anger is connected with ignition system through exit linkage flange (12), be provided with down branch air supply pipeline and bypass air supply pipeline between access linkage flange (1) and exit linkage flange (12), it has set gradually intake pressure gauge (4), manual air-vent valve (5), electric actuator (6), capsule manometer (7), solenoid valve (8) and stainless steel ball valve (9) to give vent to anger the end from the inlet end on the lower branch air supply pipeline, and electric actuator (6) and solenoid valve (8) all are connected with electronic control cabinet (14), be provided with bypass ball valve (11) on the bypass air supply pipeline.
2. The interlocking protection system for the burner of the heating furnace according to claim 1, wherein: and a basket filter (3) and a flange inlet ball valve (2) are arranged on the gas pipelines between the lower branch gas supply pipeline and the inlet connecting flange (1) and between the bypass gas supply pipeline and the inlet connecting flange.
3. The interlocking protection system for the burner of the heating furnace according to claim 2, wherein: flame arresters (10) are arranged on the gas pipelines between the lower branch gas supply pipeline and the outlet connecting flange (12) and between the bypass gas supply pipeline and the outlet connecting flange.
4. The interlocking protection system for the burner of the heating furnace according to claim 3, characterized in that: the bypass air supply pipeline is a standby pipeline, and a bypass ball valve (11) arranged on the bypass air supply pipeline is in a normally closed state.
5. The interlocking protection system for the burner of the heating furnace according to claim 1, wherein: electronic control cabinet (14) are including the cabinet body, operating panel, remote communication module and controller, and operating panel fixed mounting is on the panel of the cabinet body, and cabinet body top is provided with rotatory warning light (13), and cabinet body inside fixed mounting has the controller, and the controller is connected with rotatory warning light (13), operating panel, remote communication module, ignition system and temperature transmitter, the controller is connected with the master control room through remote communication module.
6. The interlocking protection system for the burner of the heating furnace according to claim 5, wherein: the cabinet body is of a double-layer stainless steel structure.
7. The interlocking protection system for the burner of the heating furnace according to claim 6, wherein: the ignition system comprises a burner, a high-energy ignition gun and an ultraviolet flame monitor, wherein the burner is connected with the gas outlet end of a gas supply pipeline, the high-energy ignition gun is installed on a gas outlet of the burner, an ignition wire is installed inside the high-energy ignition gun, the control end of the ignition wire is connected with a high-energy igniter wiring terminal and a controller in an electronic control cabinet (14), and the ultraviolet flame monitor is in safe linkage with a rotary warning lamp (13) and an electromagnetic valve (8) and is used for detecting the flame running condition in a hearth of the heating furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220308762.8U CN217057593U (en) | 2022-02-15 | 2022-02-15 | Heating furnace burner interlocking protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220308762.8U CN217057593U (en) | 2022-02-15 | 2022-02-15 | Heating furnace burner interlocking protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217057593U true CN217057593U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220308762.8U Active CN217057593U (en) | 2022-02-15 | 2022-02-15 | Heating furnace burner interlocking protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217057593U (en) |
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2022
- 2022-02-15 CN CN202220308762.8U patent/CN217057593U/en active Active
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