CN212481368U - Combustion furnace safety control device - Google Patents
Combustion furnace safety control device Download PDFInfo
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- CN212481368U CN212481368U CN202021212111.6U CN202021212111U CN212481368U CN 212481368 U CN212481368 U CN 212481368U CN 202021212111 U CN202021212111 U CN 202021212111U CN 212481368 U CN212481368 U CN 212481368U
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- combustion furnace
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Abstract
The utility model relates to a fire burning furnace safety control device, including firing burning furnace, the air-blower, the draught fan, the combustor, the flame detector, the atmospheric pressure detector, combustible gas automatically controlled valve and controller that admits air, fire burning furnace including firing burning furnace main part, the air inlet end, combustible gas inlet end and exhaust end, the air-blower sets up at the air inlet end, the draught fan sets up at the exhaust end, the combustor sets up in the furnace that fires the furnace main part, whether flame detector is used for detecting the flame spout department of combustor has flame, the atmospheric pressure detector is used for detecting the atmospheric pressure in the furnace, combustible gas automatically controlled valve that admits air sets up at the combustible gas inlet end, the flame detector, the atmospheric pressure detector, the air-blower, the draught fan, combustor and combustible gas automatically controlled valve and controller signal connection. This fire burning furnace safety control device controls relevant equipment action through detecting relevant data, realizes firing burning furnace safety detection and control, promotes the security of firing burning furnace.
Description
Technical Field
The utility model relates to a fire burning furnace safety control device.
Background
The combustion furnace is one of the common combustion devices in industrial treatment, and the existing combustion furnace is not provided with a set of safe and reliable control device in the actual application process so as to carry out safe detection and control on the combustion furnace and ensure that the combustion furnace has poor safety in the actual application process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fire burning furnace safety control device for solve current fire burning furnace and fire the relatively poor problem of security in the practical application process.
In order to solve the problem, the utility model adopts the following technical scheme:
a combustion furnace safety control device comprising:
the combustion furnace comprises a combustion furnace body, an air inlet end, a combustible gas inlet end and an exhaust end;
a blower disposed at the air intake end;
the induced draft fan is arranged at the exhaust end;
a burner disposed within a hearth of the furnace body, the burner including a flame port;
the flame detector is arranged at the flame nozzle and used for detecting whether flame exists at the flame nozzle;
the air pressure detector is arranged in the hearth of the combustion furnace main body and used for detecting the air pressure in the hearth of the combustion furnace main body;
the combustible gas inlet electric control valve is arranged at the combustible gas inlet end; and
the controller, the signal output part of flame detector and baroceptor is connected the signal input part of controller, the signal output part of controller is connected air-blower, draught fan, combustor and combustible gas automatically controlled valve that admits air.
Optionally, the combustion furnace safety control device further comprises a combustible gas concentration detector, the combustible gas concentration detector is arranged in the hearth of the combustion furnace main body and is used for detecting the concentration of the combustible gas in the hearth of the combustion furnace main body, and a signal output end of the combustible gas concentration detector is connected with a signal input end of the controller.
Optionally, the combustion furnace safety control device further comprises an exhaust button and a start button, and signal output ends of the exhaust button and the start button are connected with a signal input end of the controller.
The utility model has the advantages that: before the combustion furnace is actually applied, namely before the combustion furnace is ignited, the operation of the air blower and the draught fan is controlled, the air blower and the draught fan discharge redundant combustible gas and other harmful gas in a hearth of the combustion furnace main body out of the hearth, the explosion of the combustible gas in the hearth during the ignition is avoided, the operation safety of the gas furnace is improved, in addition, the air blower and the draught fan operate simultaneously and are used in a matched mode, one end of the air blower blows air, the other end of the air blower inhales air, the discharge of the redundant combustible gas and other harmful gas in the hearth is quicker and more; in the application process of the combustion furnace, the flame detector at the flame nozzle is used for detecting whether flame exists at the flame nozzle, when flame does not exist, the burner can be controlled to be closed, the operation safety of the combustion furnace is improved, the waste of energy sources of the burner is avoided, the combustible gas intake electric control valve can be controlled to be closed, and the risk of safety accidents caused by the fact that the combustible gas is continuously transmitted into a hearth is prevented; the air pressure detector in the hearth is used for detecting the air pressure in the hearth, and when the air pressure is not in a normal range, the burner and the combustible gas air inlet electric control valve can be controlled to be closed, the combustion of the combustion furnace is stopped, and safety accidents are avoided. Therefore, the combustion furnace safety control device controls the action of relevant equipment by detecting relevant data, realizes the safety detection and control of the combustion furnace and improves the safety of the combustion furnace.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described as follows:
FIG. 1 is a schematic view showing the overall construction of a safety control device for a combustion furnace;
fig. 2 is a control schematic diagram of a combustion furnace safety control device.
Detailed Description
The embodiment provides a combustion furnace safety control device, as shown in fig. 1, which includes a combustion furnace, a blower 5, an induced draft fan 6, a burner 7, a flame detector 9, a gas pressure detector 10, a combustible gas concentration detector 11, and a combustible gas intake electric control valve 12.
The combustion furnace comprises a combustion furnace body 1, an air inlet end 2, a combustible gas inlet end 3 and an exhaust end 4. It should be understood that the shape of the combustion furnace body 1 and the size and shape of the furnace chamber are set according to actual requirements, and the positions of the air inlet 2, the combustible gas inlet 3 and the air outlet 4 on the combustion furnace body 1 are also set according to actual requirements, fig. 1 shows a specific embodiment, the air inlet 2 and the combustible gas inlet 3 are set on the left side of the combustion furnace body 1 and are set below, and the air outlet 4 is set on the right side of the combustion furnace body 1 and is set above.
The combustible gas of the combustion furnace is not limited, and may be natural gas, hydrogen, and the like, and in this embodiment, the combustible gas is natural gas as an example.
The air blower 5 is arranged at the air inlet end 2, and the induced draft fan 6 is arranged at the air outlet end 4. It should be understood that the air outlet end of the blower 5 is connected with the air inlet end 2, and the air inlet end of the blower 5 can be connected with an air inlet pipeline; the air inlet end of the draught fan 6 is connected with the air outlet end 4, and the air outlet end of the draught fan 6 can be connected with an air exhaust pipeline or a gas recovery tank. The electrical parameters of the blower 5 and the induced draft fan 6 are determined by actual requirements.
The burner 7 is disposed in the furnace chamber of the combustion furnace body 1, and the specific position is set according to actual needs, in this embodiment, the burner 7 is disposed on the left side of the furnace chamber. The burner 7 comprises flame ports 8, the flame ports 8 being arranged towards the right. As the burner is arranged in the hearth by the conventional technical means, and the burner usually comprises a flame nozzle, the detailed description is omitted.
The flame detector 9 is arranged at the flame nozzle 8 and is used for detecting whether flames exist at the flame nozzle 8. The flame detector 9 may be a conventional flame detection device. The flame detector 9 may be disposed at a certain position around the flame nozzle 8, and the position of the flame detector 9 is required to detect whether there is a flame at the flame nozzle 8, but is not limited to its specific position, and the flame detector 9 is disposed above the flame nozzle 8 in fig. 1.
The air pressure detector 10 is disposed in the furnace for detecting air pressure in the furnace, and the air pressure detector 10 may be a conventional air pressure detecting device. The combustible gas concentration detector 11 is arranged in the hearth and used for detecting the concentration of combustible gas in the hearth, the combustible gas concentration detector 11 can be conventional combustible gas concentration detection equipment, the equipment type is specifically determined by the type of the combustible gas, and if the combustible gas is natural gas, the combustible gas concentration detector 11 is the natural gas concentration detection equipment. It should be understood that the gas pressure detector 10 and the combustible gas concentration detector 11 need to be capable of detecting the gas pressure in the furnace and the combustible gas concentration in the furnace, and the embodiment is not limited to the specific arrangement positions of the gas pressure detector 10 and the combustible gas concentration detector 11 in the furnace, and fig. 1 shows a specific arrangement position, which is arranged at the lower right side of the furnace. The combustible gas concentration detector 11 is an optimized embodiment, and as another embodiment, the combustible gas concentration detector 11 may not be provided.
It should be understood that, because the temperature in the furnace is relatively high when the combustible gas in the furnace is burning, the detecting devices in the furnace, such as: when the type of the flame detector 9, the air pressure detector 10 and the combustible gas concentration detector 11 is selected, equipment with high temperature resistance needs to be selected, and the equipment belongs to common equipment and is not described any more.
The combustible gas inlet electric control valve 12 is arranged at the combustible gas inlet end 3. The electrically controlled valve 12 for the combustible gas inlet can be a conventional electrically controlled valve for gas. It should be understood that one end of the fuel gas inlet electrically-controlled valve 12 is connected to the fuel gas inlet end 3, and the other end can be connected to a fuel gas input pipeline.
As a specific embodiment, in order to facilitate combustion, the combustible gas input from the combustible gas inlet end 3 can be output to the position of the flame nozzle 8 through the combustible gas delivery pipe 13, and then one end of the combustible gas delivery pipe 13 is connected to the combustible gas inlet end 3, and the other end is located at the position of the flame nozzle 8; the air input from the air inlet 2 can be output to the flame outlet 8 through the air delivery pipe 14, and then one end of the air delivery pipe 14 is connected to the air inlet 2 and the other end is at the flame outlet 8, as shown in fig. 1.
In order to realize the safety control of the combustion furnace, the safety control device of the combustion furnace further comprises a controller 15, the controller 15 can be a conventional control chip, such as a single chip microcomputer, and the specific type of the control chip is determined by actual needs. The controller 15 may be provided in a control box fixed at a position outside the burner body 1, and the control box may be spaced apart from the burner body 1 to prevent high temperature from affecting the normal operation of the controller 15. As shown in fig. 2, the signal output ends of the flame detector 9, the air pressure detector 10 and the combustible gas concentration detector 11 are connected with the signal input end of the controller 15, and the signal output end of the controller 15 is connected with the blower 5, the induced draft fan 6, the burner 7 and the combustible gas air inlet electric control valve 12.
In order to realize the exhaust control and the startup control, the combustion furnace safety control device further comprises an exhaust button 16 and a startup button 17, and signal output ends of the exhaust button 16 and the startup button 17 are connected with a signal input end of the controller 15. The exhaust button 16 and the power-on button 17 may be provided on the control box. As other embodiments, the exhaust and startup control can also be realized through a touch screen, an intelligent terminal, and the like.
It should be understood that the controller 15 and each of the other devices may be communicatively coupled via corresponding communication lines.
Before burning the start of burning furnace, before combustor 7 ignites promptly, operation exhaust button 16, controller 15 control start-up air-blower 5 and draught fan 6, air-blower 5 and draught fan 6 cooperation use, and one end is blown one end and is breathed in, discharges furnace fast completely with unnecessary natural gas in the furnace and other harm gases, and natural gas takes place to explode in the furnace when having avoided lighting, can also promote harm gas exhaust velocity.
After the exhaust is finished, the starting button 17 is operated, the air blower 5 and the induced draft fan 6 continuously run, the controller 15 controls the burner 7 to be ignited, the combustible gas intake electric control valve 12 to be conducted, and the natural gas enters the hearth to be combusted. In the combustion process, the flame detector 9 at the flame nozzle 8 detects whether flame exists at the flame nozzle 8 or not, and outputs a detection signal to the controller 15, and the controller 15 performs the following control: if no flame is detected at the flame nozzle 8, the burner 7 is controlled to be closed and the combustible gas inlet electric control valve 12 is controlled to be closed, and an alarm can be given through an external alarm; the combustible gas concentration detector 11 detects the concentration of combustible gas in the furnace and outputs a detection signal to the controller 15, and the controller 15 performs the following control: when the concentration of the combustible gas is too high, namely higher than a set concentration threshold value, controlling the combustible gas inlet electric control valve 12 to close; the air pressure detector 10 detects the air pressure in the furnace and outputs a detection signal to the controller 15, and the controller 15 performs the following control: if the air pressure is not in the preset normal range (the preset normal range refers to a range between positive pressure and negative pressure), that is, the air pressure is too high or too low, the burner 7 is controlled to be closed, and the combustible gas inlet electric control valve 12 is controlled to be closed.
It should be understood that the present embodiment protects the hardware structure of the furnace safety control device, and the control strategy in the controller 15 is a conventional strategy, and the furnace safety control device is controlled by using the existing control strategy only, and the furnace safety control device is not limited by the control strategy, and other control strategies disclosed in the prior art can be adopted besides the control strategy described above.
Claims (3)
1. A combustion furnace safety control device, comprising:
the combustion furnace comprises a combustion furnace body, an air inlet end, a combustible gas inlet end and an exhaust end;
a blower disposed at the air intake end;
the induced draft fan is arranged at the exhaust end;
a burner disposed within a hearth of the furnace body, the burner including a flame port;
the flame detector is arranged at the flame nozzle and used for detecting whether flame exists at the flame nozzle;
the air pressure detector is arranged in the hearth of the combustion furnace main body and used for detecting the air pressure in the hearth of the combustion furnace main body;
the combustible gas inlet electric control valve is arranged at the combustible gas inlet end; and
the controller, the signal output part of flame detector and baroceptor is connected the signal input part of controller, the signal output part of controller is connected air-blower, draught fan, combustor and combustible gas automatically controlled valve that admits air.
2. The combustion furnace safety control device as claimed in claim 1, further comprising a combustible gas concentration detector disposed in the furnace of the combustion furnace body for detecting the concentration of the combustible gas in the furnace of the combustion furnace body, wherein a signal output terminal of the combustible gas concentration detector is connected to a signal input terminal of the controller.
3. The furnace safety control device of claim 1, further comprising an exhaust button and a start-up button, wherein signal outputs of the exhaust button and the start-up button are connected to a signal input of the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021212111.6U CN212481368U (en) | 2020-06-28 | 2020-06-28 | Combustion furnace safety control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021212111.6U CN212481368U (en) | 2020-06-28 | 2020-06-28 | Combustion furnace safety control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212481368U true CN212481368U (en) | 2021-02-05 |
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ID=74413810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021212111.6U Active CN212481368U (en) | 2020-06-28 | 2020-06-28 | Combustion furnace safety control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212481368U (en) |
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2020
- 2020-06-28 CN CN202021212111.6U patent/CN212481368U/en active Active
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