CN214426051U - Thick oil heating flame monitored control system - Google Patents
Thick oil heating flame monitored control system Download PDFInfo
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- CN214426051U CN214426051U CN202120397484.3U CN202120397484U CN214426051U CN 214426051 U CN214426051 U CN 214426051U CN 202120397484 U CN202120397484 U CN 202120397484U CN 214426051 U CN214426051 U CN 214426051U
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Abstract
A thick oil heating flame monitoring system comprises a main road for connecting a water jacket furnace to convey natural gas, wherein a main stop valve is arranged on the main road, a monitoring branch is connected in parallel on the main road, and two ends of the monitoring branch are connected to two sides of the main stop valve; two branch stop valves and an explosion-proof electromagnetic valve are arranged on the monitoring branch, and the explosion-proof electromagnetic valve is positioned between the two branch stop valves; the system is also provided with a monitoring controller, a flame detector and a time delay relay, wherein the flame detector is a non-contact ultraviolet flame detector, and the signal output end of the flame detector is connected with the signal input end of the monitoring controller through a lead; and two ends of a pair of normally open contacts of the monitoring controller are respectively connected with the positive electrode and the negative electrode of the power supply through a time delay relay and a coil of the explosion-proof electromagnetic valve. The system is applied to natural gas flame monitoring in the working process of the field water jacket furnace, can acquire the combustion state and the heating condition of the natural gas flame in real time, and prevents production and safety accidents.
Description
Technical Field
The utility model relates to a flame control field, in particular to viscous crude heating flame monitored control system that uses in viscous crude transportation.
Background
In the process of petroleum exploitation and transportation, in order to prevent petroleum from solidifying and blocking an oil pipeline, the industrial water jacket furnace is used for heating thick oil which is just exploited, and petroleum transportation is facilitated.
Generally, the basic requirement of the industrial water jacket furnace on the combustion state of fuel is to keep the flame to be fully and stably combusted, and to minimize the occurrence of unstable combustion, thereby preventing safety accidents such as furnace explosion, gas leakage, heavy metal pollution and the like caused by furnace flameout. Therefore, it is very necessary to monitor the flame of the hearth of the industrial water jacket furnace, provide an alarm and take corresponding rescue measures when the flame is in an abnormal combustion state, and simultaneously reduce the normal working time delayed due to fault maintenance and periodic maintenance as much as possible.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a viscous crude heating flame monitored control system is provided, and natural gas flame control in the field water jacket stove working process is applied to this system, can gather natural gas flame combustion state and the heating condition in real time, prevents to take place production and incident.
The technical scheme of the utility model as follows:
the utility model provides a viscous crude heating flame monitored control system, is equipped with the main stop valve including being used for connecting the main road that the water jacket stove carried the natural gas on the main road, and its special character is: a monitoring branch is connected in parallel on the main line, and two ends of the monitoring branch are connected to two sides of the main stop valve; two branch stop valves and an explosion-proof electromagnetic valve are arranged on the monitoring branch, and the explosion-proof electromagnetic valve is positioned between the two branch stop valves;
the system is also provided with a monitoring controller, a flame detector and a time delay relay, wherein the flame detector is a non-contact ultraviolet flame detector, and the signal output end of the flame detector is connected with the signal input end of the monitoring controller through a lead; the flame state is detected and transmitted to the monitoring controller;
and two ends of a pair of normally open contacts of the monitoring controller are respectively connected with the positive electrode and the negative electrode of the power supply through a time delay relay and a coil of the explosion-proof electromagnetic valve, and the normally open contacts are used for controlling the on-off of the explosion-proof electromagnetic valve and starting and monitoring in ignition time delay according to the flame state detected by the flame detector.
Preferably, the system is also provided with an audible and visual alarm which is electrically connected with the power supply through the other pair of normally open contacts of the monitoring controller and used for alarming and prompting when flame is extinguished.
Preferably, the monitoring controller is an R4343 type hounwell controller.
Preferably, the flame detector is a C7027a1049 type hounerville combustion ultraviolet flame detector.
The utility model has the advantages that:
1. the flame detector is a non-contact ultraviolet flame detector, so that the sensitivity is high, the reaction time is about 0.01 second, the flame detector is not directly contacted with the flame, the flame detector can be prevented from being damaged by the high temperature of the flame, and the service life is long; when flame goes out, the flame detector sends a signal to the monitoring controller after detecting the flame, the monitoring controller controls the pair of normally open contacts in the monitoring controller to be closed, so that the explosion-proof electromagnetic valve is quickly powered on and closed, the monitoring branch is in a cut-off state, and the system is quick in response, safe and reliable. The system is applied to natural gas flame monitoring in the working process of the field water jacket furnace, can acquire the combustion state and the heating condition of the natural gas flame in real time, and prevents production and safety accidents.
2. Because the two ends of the normally open contact of the monitoring controller are respectively connected with the positive electrode and the negative electrode of the power supply through the time delay relay and the coil of the explosion-proof electromagnetic valve, the ignition time of the water jacket furnace can be ensured to be sufficient through the time delay relay, and the monitoring controller is matched for use, so that the time delay starting equipment can be realized, and the stable and reliable work can be ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
In the figure: the flame detector comprises a flame detector 1, a monitoring controller 2, an explosion-proof electromagnetic valve 3, a time delay relay 4, an audible and visual alarm 5, a monitoring branch 6, a tee joint 7, a branch stop valve 8, a flange 9, a power supply 10, a main line 11, a lead 12 and a main stop valve 13.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-2, the thick oil heating flame monitoring system of the present invention comprises a main line 11 for connecting a water jacket furnace to transport natural gas, wherein a main stop valve 13 is installed on the main line 11, a monitoring branch 6 is connected in parallel to the main line 11 through two tees 7, and two ends of the monitoring branch 6 are connected to two sides of the main stop valve 13; two branch stop valves 8 and an explosion-proof electromagnetic valve 3 are installed on the monitoring branch 6, and the explosion-proof electromagnetic valve 3 is located between the two branch stop valves 8 and is installed on the monitoring branch 6 through a flange 9.
The system is also provided with a monitoring controller 2, a flame detector 1 and a time delay relay 4, wherein the flame detector 1 is a non-contact ultraviolet flame detector, and the signal output end of the flame detector is connected with the signal input end, namely pins 1 and 2, of the monitoring controller 2 through a lead; for detecting the flame condition and communicating to the monitoring controller 2.
Two ends, namely pins 7 and 8, of a pair of normally open contacts of the monitoring controller 2 are respectively connected with a positive electrode and a negative electrode of a power supply 10 through a time delay relay 4 and a coil of the explosion-proof electromagnetic valve 3, and the monitoring controller is used for controlling the on-off of the explosion-proof electromagnetic valve 3 according to the flame state detected by the flame detector 1 and starting the monitoring system in a time delay manner when the flame detector is ignited.
The system is also provided with an audible and visual alarm 5, and the audible and visual alarm 5 is electrically connected with a power supply 10 through another pair of normally open contacts (namely pins 5 and 6) of the monitoring controller 2 and used for alarming and prompting when flame is extinguished.
The monitoring controller 2 is preferably a honeywell controller of R4343 type and is connected with a power supply 10 through a power switch and a lead 12. The flame detector 1 is preferably a HONEYWELL COMBUSTION ULTRAVIOLET FLAME DETECTOR of C7027A1049 type. The power supply 10 is a 220V alternating current power supply.
Before the flame detector is used, the flame detector 1 is arranged at one end of a light guide pipe outside the water jacket furnace, the connection mode is NPT threaded connection, the light guide pipe is aligned to the middle and front bright positions of flame, and a certain distance is reserved between the light guide pipe and the flame combustion position. The delay time of the delay relay 4 is set according to the ignition time.
When the system is used, the power switch is turned on, the system is electrified to prepare for work, the main stop valve 13 is closed, and the two branch stop valves 8 are opened, so that natural gas can only pass through the monitoring branch during normal work, ignition operation is completed within the time set by the delay relay, equipment is not cut off and is not alarmed, namely, the equipment works normally, and workers can withdraw. When flame is extinguished due to an accident, the flame detector 1 immediately sends a signal to the monitoring controller 2 after detecting, and the monitoring controller 2 controls the two pairs of pins 7 and 8 and the pins 5 and 6 of the normally open contacts in the monitoring controller 2 to be closed, so that the explosion-proof electromagnetic valve is quickly powered on and closed, and the monitoring branch is in a cut-off state; meanwhile, the audible and visual alarm 5 flickers and gives out alarm sound to remind workers of maintaining and warn nearby personnel of safety.
When the natural gas burner is maintained or overhauled, in order to guarantee that the natural gas can be continuously combusted without delaying the normal work, the main stop valve 13 is opened to keep flame continuously combusted, the two branch stop valves 8 are closed to prevent the natural gas from leaking, the power supply is cut off, and the reasons of specific accidents are checked.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields where the invention is suitable, and further modifications may readily be made by those skilled in the art, and the invention is therefore not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.
Claims (4)
1. The utility model provides a viscous crude heating flame monitored control system, is equipped with main stop valve, characterized by including being used for connecting the main road that the water jacket stove carried the natural gas on the main road: a monitoring branch is connected in parallel on the main line, and two ends of the monitoring branch are connected to two sides of the main stop valve; two branch stop valves and an explosion-proof electromagnetic valve are arranged on the monitoring branch, and the explosion-proof electromagnetic valve is positioned between the two branch stop valves;
the system is also provided with a monitoring controller, a flame detector and a time delay relay, wherein the flame detector is a non-contact ultraviolet flame detector, and the signal output end of the flame detector is connected with the signal input end of the monitoring controller through a lead; the flame state is detected and transmitted to the monitoring controller;
and two ends of a pair of normally open contacts of the monitoring controller are respectively connected with the positive electrode and the negative electrode of the power supply through a time delay relay and a coil of the explosion-proof electromagnetic valve, and the normally open contacts are used for controlling the on-off of the explosion-proof electromagnetic valve and starting and monitoring in ignition time delay according to the flame state detected by the flame detector.
2. The thick oil heating flame monitoring system of claim 1, wherein: the system is also provided with an audible and visual alarm which is electrically connected with the power supply through the other pair of normally open contacts of the monitoring controller and used for alarming and prompting when flame is extinguished.
3. A thick oil heating flame monitoring system according to claim 1 or 2, characterized in that: the monitoring controller is an R4343 type Honeville controller.
4. The thick oil heating flame monitoring system according to claim 3, wherein: the flame detector is a C7027A1049 type Honeywell combustion ultraviolet flame detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120397484.3U CN214426051U (en) | 2021-02-23 | 2021-02-23 | Thick oil heating flame monitored control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120397484.3U CN214426051U (en) | 2021-02-23 | 2021-02-23 | Thick oil heating flame monitored control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214426051U true CN214426051U (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120397484.3U Active CN214426051U (en) | 2021-02-23 | 2021-02-23 | Thick oil heating flame monitored control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214426051U (en) |
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2021
- 2021-02-23 CN CN202120397484.3U patent/CN214426051U/en active Active
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