CN217612659U - Combustion system of oil field heating furnace - Google Patents
Combustion system of oil field heating furnace Download PDFInfo
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- CN217612659U CN217612659U CN202123276643.3U CN202123276643U CN217612659U CN 217612659 U CN217612659 U CN 217612659U CN 202123276643 U CN202123276643 U CN 202123276643U CN 217612659 U CN217612659 U CN 217612659U
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Abstract
The utility model discloses a combustion system of an oil field heating furnace, which comprises a combustor, a fire extinguishing device and a control device, wherein the combustor comprises a body, the body comprises a combustor shell, the fire extinguishing device comprises a foam fire extinguishing device, a main pipeline for conveying foam fire extinguishing medium, a fire tube fire extinguishing unit and a control circuit, the fire tube fire extinguishing unit comprises a branch pipeline and an electric control valve, the inlet of the main pipeline is connected with the foam fire extinguishing medium outlet of the foam fire extinguishing device, and the inlet of the branch pipeline is connected with the main pipeline; the electric control valve is connected in series in the branch pipeline, and the outlet of the branch pipeline is connected with the combustor shell; the control circuit comprises a controller, and the control end of the foam fire extinguishing device and the control end of the electric control valve are respectively connected with the control signal output end of the controller. The utility model discloses when discovering the fire tube weeping of oil field heating furnace, control circuit can start gaseous foam extinguishing device, carries foam fire extinguishing medium in to the fire tube from the combustor casing through main line and branch pipeline, can put out the conflagration that the weeping appears in the fire tube rapidly.
Description
[ technical field ]
The utility model relates to an oil field heating furnace especially relates to a combustion system of oil field heating furnace.
[ background Art ]
The oil field heating furnace is a heating device widely used in oil field to heat multiphase mixed liquid in oil field production, and the multiphase mixed liquid includes crude oil, water and other impurities. The oil field heating furnace comprises a furnace body and a fire tube, wherein the fire tube is a main heating device of the heating furnace and comprises a fire tube and a smoke tube. The simple combustion system of the oil field heating furnace comprises a burner and a control system, wherein the burner is arranged outside a furnace body and is positioned at one end of a fire tube. The fuel is ignited in the burner at one end of the fire tube and sprayed into the fire tube for combustion, and the multiphase mixed liquid outside the fire tube and the outer wall of the fire tube exchange heat in a convection manner to realize oil-water separation. However, if the fire tube is perforated due to fire, multi-phase mixed liquid flows into the fire tube to cause fire, and at present, no fire extinguishing device specially aiming at fire catching of the fire tube of the oil field heating furnace due to liquid leakage exists, so that the fire tube has high fire extinguishing difficulty.
[ summary of the invention ]
The to-be-solved technical problem of the utility model is to provide a combustion system of oil field heating furnace that can put out a fire section of thick bamboo conflagration rapidly.
In order to solve the technical problem, the utility model adopts the technical scheme that the combustion system of the oil field heating furnace comprises a combustor, a fire extinguishing device and a control device, wherein the combustor comprises a body, the body comprises a combustor shell, the fire extinguishing device comprises a foam fire extinguishing device, a main pipeline for conveying foam fire extinguishing medium, a fire tube fire extinguishing unit and a control circuit, the fire tube fire extinguishing unit comprises a branch pipeline and an electric control valve, the inlet of the main pipeline is connected with the foam fire extinguishing medium outlet of the foam fire extinguishing device, and the inlet of the branch pipeline is connected with the main pipeline; the electric control valve is connected in series in the branch pipeline, and the outlet of the branch pipeline is connected with the combustor shell; the control circuit comprises a controller, and the control end of the foam fire extinguishing device and the control end of the electric control valve are respectively connected with the control signal output end of the controller.
The combustion system of the oil field heating furnace comprises two burners, and the fire extinguishing device comprises a tee joint and two fire cylinder fire extinguishing units; the inlets of the three-way joints are connected with the main pipeline, and the inlets of the branch pipelines of the two fire-tube extinguishing units are respectively connected with the outlet of one three-way joint; outlets of branch pipelines of the two fire-cylinder fire-extinguishing units are respectively connected with a combustor shell; the back of the shell of the burner is provided with at least one foam fire-extinguishing medium injection pipe facing the inner cavity of the burner, and the outlet of the branch pipeline is connected with the foam fire-extinguishing medium injection pipe.
In the combustion system of the oil field heating furnace, the foam fire extinguishing medium injection pipe comprises a spray pipe, a mounting flange and a pipe joint, the rear part of the combustor shell comprises a spray pipe hole corresponding to the foam fire extinguishing medium injection pipe, and the spray pipe penetrates through the spray pipe hole to enter the combustor; the installation flange of the foam fire extinguishing medium injection pipe is fixed on the shell of the burner, and the pipe joint of the foam fire extinguishing medium injection pipe is connected with the outlets of the branch pipelines through connecting pipes.
The combustion system of the oil field heating furnace comprises a fire tube fire extinguishing unit, wherein the pressure sensor of the fire tube fire extinguishing unit is arranged in a branch pipeline and is positioned between an electric control valve and an outlet of the branch pipeline, and the pressure signal output end of the pressure sensor of the fire tube fire extinguishing unit is connected with the pressure signal input end of a controller.
The combustion system of the oil field heating furnace, the fire tube fire extinguishing unit comprises a fire tube liquid leakage detection sensor and an AI image recognition flame detector.
In the combustion system of the oil field heating furnace, the fire tube liquid leakage detection sensor is an input type liquid level transmitter, the input type liquid level transmitter comprises a liquid level transmitter body, a liquid level probe and a pressure guide pipe for connecting the transmitter body and the liquid level probe, the liquid level transmitter body is arranged outside the combustor shell through a support, the fire tube of the combustor shell is connected through the pressure guide pipe, and the liquid level probe is arranged at the lower part or in front of the inner cavity of the combustor shell; the signal output end of the liquid level transmitter is connected with the fire tube liquid leakage signal input end of the controller.
In the combustion system of the oil field heating furnace, the burner comprises the air feeder, the mounting flange at the front end of the air feeder is fixed on the rear plate of the burner shell, the mounting flange of the air feeder comprises the observation hole, and the front part of the AI image recognition flame detector is fixed on the mounting flange of the air feeder and is positioned behind the observation hole; the lens of the AI image recognition flame detector penetrates through the observation hole and enters the combustor.
In the combustion system of the oil field heating furnace, the fire extinguishing device comprises a water inlet pipeline, an electric valve and a booster water pump, and the foam fire extinguishing device comprises a negative pressure type proportional mixer; the electric valve and the booster water pump are connected in series between the water inlet pipeline and the inlet of the negative pressure type proportional mixer, and the outlet of the negative pressure type proportional mixer is connected with the main pipeline as the foam fire extinguishing medium outlet of the foam fire extinguishing device; the control end of the electric valve and the control end of the booster water pump are respectively connected with the control signal output end of the controller.
The utility model discloses in case when discovering the fire tube weeping of oil field heating furnace, control circuit can start gaseous foam extinguishing device, carries foam fire extinguishing medium in to the fire tube from the combustor casing through main line and branch pipeline, can put out the conflagration that the weeping appears in the fire tube rapidly.
[ description of the drawings ]
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a front view of a combustion system of an oil field heating furnace according to an embodiment of the present invention.
Fig. 2 is a top view of a combustion system of an oil field heating furnace according to an embodiment of the present invention.
Fig. 3 is a perspective view of a fire extinguishing unit of the embodiment of the present invention.
Fig. 4 is a perspective view of a foam fire extinguishing medium injection pipe according to an embodiment of the present invention.
Fig. 5 is a perspective view of the fire tube leakage detecting sensor according to the embodiment of the present invention.
[ detailed description of the invention ]
The structure of the fire extinguishing system of the oil field heating furnace provided by the utility model is as shown in figures 1 to 5, and comprises two burners 40, a control device of the oil field heating furnace and a fire extinguishing device.
The burner 40 includes a burner body including a case 41, and a blower 42 fixed to a rear end of the case 41.
The fire extinguishing device comprises a water inlet pipeline 16, an electric valve 17, a booster water pump 18, a foam fire extinguishing device 10, a main pipeline 14 for conveying foam fire extinguishing medium, a three-way joint 15, two fire cylinder fire extinguishing units 60 and a control circuit.
The oilfield furnace 100 has two fire cylinders (not shown) each having a burner 40 mounted at the rear end thereof, and therefore two fire cylinder fire extinguishing units 60 are required. The burner 40 is located in the firing chamber 200 of an oilfield heating furnace.
Each fire-cylinder fire extinguishing unit 60 includes a branch pipe line 61, an electric control valve 62, a flash pressure sensor 63, two foam fire extinguishing medium spraying pipes 12, a liquid leakage detection sensor 50, and an AI image recognition flame detector 70.
A negative pressure type proportioner 10B is arranged on the foam fire extinguishing device 10, and the negative pressure type proportioner 10B is connected with a main body 10A of the foam fire extinguishing device through a pipeline 10C. The utility model discloses foam extinguishing device 10 adopts the PY series foam extinguishing device that Jinan Ring ball industry fire fighting equipment limited company produced.
An electric valve 17 and a booster water pump 18 are connected in series between a pressure water inlet pipeline 16 and an inlet of the negative pressure type proportional mixer 10B, and an outlet of the negative pressure type proportional mixer 10B is used as a foam fire extinguishing medium outlet of the foam fire extinguishing device and is connected with an inlet of the main pipeline 14. The pressure water inlet pipeline 16 is provided with a water inlet pressure sensor 161, the control end of the electric valve 17 and the control end of the booster water pump 18 are respectively connected with the control signal output end of the controller, and the water pressure signal output end of the water inlet pressure sensor 161 is connected with the water inlet pressure signal input end of the controller.
The inlet of the three-way joint 15 is connected with the outlet of the main pipeline 14, and the inlets of the two fire-cylinder fire-extinguishing units 60 and the branch pipelines 61 are respectively connected with the outlet of one three-way joint 15. The outlets of the two fire-fighting unit branch pipes 61 are connected to the housing 41 of a burner via a foam extinguishing medium injection pipe 12.
The rear part of each burner housing 41 is provided with two foam extinguishing medium spraying pipes 12 facing the inner cavity of the burner, and the outlets of the branch pipes 61 are connected with the foam extinguishing medium spraying pipes 12 through connecting hoses 13.
The foam extinguishing medium spraying pipe 12 comprises a nozzle 121, a mounting flange 122 and a pipe joint 123, and the rear part of the burner housing 41 has two nozzle holes corresponding to the foam extinguishing medium spraying pipe 12, and the nozzle 121 passes through the nozzle holes into the interior of the burner housing 41. The mounting flange 122 of the foam extinguishing medium spraying pipe 12 is fixed to the housing 41 of the burner, and the pipe joint 123 of the foam extinguishing medium spraying pipe 12 is connected to the outlet of the branch line 61 through the connection hose 13.
An electronic control valve 62 and a flash pressure sensor 63 are installed in the branch line 61. An electric control valve 62 is connected in series in the branch line 61 near the outlet of the three-way joint 15, and a flash pressure sensor 63 is installed between the electric control valve 62 and the connection hose 13. When fire is extinguished, the high-pressure foam fire extinguishing medium generated by the foam fire extinguishing device 10 passes through the main pipeline 14, the three-way joint 15 and the connecting hose 13 and is sprayed into a fire tube of an oil field heating furnace from the foam fire extinguishing medium spraying pipe 12 on the burner shell 41.
The control circuit comprises a controller and an alarm circuit, the valve of the electric control valve 62 is normally open, the control end of the electric control valve 62 is connected with the control signal output end of the controller, and the valve opening and closing signal output end of the electric control valve 62 is connected with the valve opening and closing signal input end of the electric control valve of the controller. The pressure signal output end of the flash pressure sensor 63 is connected with the pressure signal input end of the controller, the signal output end of the leakage detection sensor 50 is connected with the leakage detection signal input end of the controller, and the signal output end of the AI image identification flame detector 70 is connected with the flame identification signal input end of the controller.
The flash pressure sensor 63 of this embodiment includes a voltage-variable bridge, a signal amplifying circuit, and an analog-to-digital converter, wherein an output terminal of the voltage-variable bridge is connected to an input terminal of the signal amplifying circuit, and an output terminal of the signal amplifying circuit is connected to a pressure signal input terminal of the controller through the analog-to-digital converter.
As shown in fig. 5, in the present embodiment, the liquid leakage detecting sensor 50 is a drop-in type liquid level transmitter, the drop-in type liquid level transmitter includes a liquid level transmitter body 51, a liquid level probe 52 and a pressure pipe 53 connecting the transmitter body 51 and the liquid level probe 52, the liquid level transmitter body 51 is mounted outside the burner housing 41 through a bracket 54, the pressure pipe 53 passes through the burner housing 41 and enters the fire tube, and the liquid level probe 52 is disposed at the lower part inside the fire tube of the heating furnace and can be in the inner cavity of the burner housing 41 or pass through the inner cavity of the burner housing 41 and enter the interior of the fire tube. And the signal output end of the liquid level transmitter is connected with the leakage detection signal input end of the controller.
The AI image recognition flame detector 70 is mounted on the blower 42 of the burner. A mounting flange 421 at the front end of the blower is fixed to the rear plate of the burner housing 41, an observation hole (not shown) is formed in the mounting flange 421 of the blower 42, and the front end of the AI image recognition flame detector 70 is fixed to the mounting flange 421 of the blower 42. Behind the viewing aperture. The lens of the AI image recognition flame detector 70 obtains the flame image inside the fire tube through the observation hole, and the signal output end of the AI image recognition flame detector 70 is connected with the flame recognition signal input end of the controller.
The utility model discloses above embodiment oil field heating furnace's fire extinguishing systems during operation, including following step:
1) The controller monitors the water pressure of the water inlet pipeline in real time, and when the water pressure of the water inlet pipeline is lower than a set value, the controller gives an alarm through the alarm circuit;
2) Each liquid leakage detection sensor monitors oil leakage of the fire tube of the unit in real time, when a controller of the control circuit receives an oil leakage signal sent by any liquid leakage detection sensor, the controller sends a signal to the control device, and the control device stops power and gas of a combustor of the fire tube with the oil leakage;
3) After the burner of the oil leakage fire tube is powered off and gas is stopped, the control device informs the controller to detect flame in the oil leakage fire tube, and the controller starts a related AI image recognition flame detector to work;
4) If the fire is cut off and the gas is stopped, the related AI image recognition flame detector can still detect the open fire, the controller closes the electric control valve irrelevant to the fire extinguishing at this time, and the electric control valve corresponding to the liquid leakage fire tube is still in an open state;
5) The closed electric control valve feeds a signal of the closed valve back to the controller, after the controller receives a signal that the electric control valve irrelevant to the fire extinguishing, the controller opens the electric valve, starts the booster water pump, pressure water enters the negative pressure type proportional mixer, and triggers the interior of the body of the foam fire extinguishing device to generate high-pressure foam, and the high-pressure foam is mixed with high-pressure water flow in the negative pressure type proportional mixer to form a high-pressure foam fire extinguishing medium which is sprayed out from an outlet of the negative pressure type proportional mixer; the fire extinguishing medium is sprayed into the fire tube with leaked oil through the main pipeline and the branch pipelines by the related burners, and flames generated by the fire tube with leaked oil of the oil field heating furnace are extinguished;
6) The pressure sensor in the branch pipeline for delivering the foam fire extinguishing medium by the fire tube with leaked oil senses the pressure of the high-pressure foam fire extinguishing medium and feeds back the information that the high-pressure foam fire extinguishing medium reaches the burner to the controller so as to confirm that the fire extinguishing device works normally; if the controller does not receive the pressure signal of the foam fire extinguishing medium sent by the pressure sensor in the branch pipeline, the controller starts an alarm signal to prevent the fire tube from leaking oil and flame from being out of control.
Claims (6)
1. A combustion system of an oil field heating furnace comprises burners and a control device, wherein each burner comprises a body, and each body comprises a burner shell, and the combustion system is characterized by comprising a fire extinguishing device and two burners, wherein each fire extinguishing device comprises a foam fire extinguishing device, a main pipeline for conveying foam fire extinguishing medium, a fire tube fire extinguishing unit and a control circuit, each fire tube fire extinguishing unit comprises a branch pipeline and an electric control valve, the inlet of the main pipeline is connected with the foam fire extinguishing medium outlet of the foam fire extinguishing device, and the inlet of the branch pipeline is connected with the main pipeline; the electric control valve is connected in series in the branch pipeline, and the outlet of the branch pipeline is connected with the combustor shell; the control circuit comprises a controller, and the control end of the foam fire extinguishing device and the control end of the electric control valve are respectively connected with the control signal output end of the controller; the inlet of the three-way joint is connected with the main pipeline, and the inlets of the branch pipelines of the two fire-tube extinguishing units are respectively connected with the outlet of the three-way joint; outlets of branch pipelines of the two fire-cylinder fire-extinguishing units are respectively connected with a combustor shell; the back part of the shell of the combustor is provided with at least one foam fire-extinguishing medium injection pipe facing to the inner cavity of the combustor, the outlet of the branch pipeline is connected with the foam fire-extinguishing medium injection pipe, the foam fire-extinguishing medium injection pipe comprises a spray pipe, a mounting flange and a pipe joint, the back part of the shell of the combustor comprises a spray pipe hole corresponding to the foam fire-extinguishing medium injection pipe, and the spray pipe penetrates through the spray pipe hole to enter the interior of the combustor; the mounting flange of the foam fire-extinguishing medium injection pipe is fixed on the shell of the burner, and the pipe joint of the foam fire-extinguishing medium injection pipe is connected with the outlet of the branch pipeline through a connecting pipe.
2. The combustion system of an oilfield heating furnace of claim 1, wherein the fire-fighting unit comprises a pressure sensor, the pressure sensor of the fire-fighting unit is installed in the branch line between the electrical control valve and the outlet of the branch line, and a pressure signal output terminal of the pressure sensor of the fire-fighting unit is connected to a pressure signal input terminal of the controller.
3. The combustion system of an oilfield heating furnace of claim 1, wherein the firebox fire suppression unit comprises a firebox weeping detection sensor and an AI image recognition flame detector.
4. The combustion system of the oilfield heating furnace according to claim 3, wherein the fire tube leakage detection sensor is a drop-in type liquid level transmitter, the drop-in type liquid level transmitter comprises a liquid level transmitter body, a liquid level probe and a pressure guide pipe connecting the transmitter body and the liquid level probe, the liquid level transmitter body is installed outside the combustor shell through a bracket, the pressure guide pipe is connected with the fire tube of the combustor shell, and the liquid level probe is arranged at the lower part or in front of the inner cavity of the combustor shell; the signal output end of the liquid level transmitter is connected with the fire tube liquid leakage signal input end of the controller.
5. The combustion system of an oilfield heating furnace according to claim 3, wherein the burner includes a blower, a mounting flange at a front end of the blower is fixed to a rear plate of the burner housing, the mounting flange of the blower includes an observation hole, and a front portion of the AI image recognition flame detector is fixed to the mounting flange of the blower behind the observation hole; the lens of the AI image recognition flame detector penetrates through the observation hole and enters the combustor.
6. The combustion system of an oilfield heating furnace of claim 3, wherein the fire suppression device comprises a water inlet conduit, an electrically operated valve, and a booster water pump, and the foam fire suppression device comprises a negative pressure proportioner; the electric valve and the booster water pump are connected in series between the water inlet pipeline and the inlet of the negative pressure type proportional mixer, and the outlet of the negative pressure type proportional mixer is used as a foam fire extinguishing medium outlet of the foam fire extinguishing device and is connected with the main pipeline; the control end of the electric valve and the control end of the booster water pump are respectively connected with the control signal output end of the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123276643.3U CN217612659U (en) | 2021-12-23 | 2021-12-23 | Combustion system of oil field heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123276643.3U CN217612659U (en) | 2021-12-23 | 2021-12-23 | Combustion system of oil field heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217612659U true CN217612659U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123276643.3U Active CN217612659U (en) | 2021-12-23 | 2021-12-23 | Combustion system of oil field heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217612659U (en) |
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2021
- 2021-12-23 CN CN202123276643.3U patent/CN217612659U/en active Active
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