Fire extinguishing assembly and fire extinguishing device for oil and gas gathering and transportation system
By designing fire extinguishing components for oil and gas collection and transportation systems, including branch pipes, fire detection units, spray units and branch controllers, the problem of limited coverage and effect of existing fire extinguishing devices is solved, and fire extinguishing effects with larger coverage, faster response speed and higher detection accuracy are achieved.
Patent Information
- Application Number
- CN202510170235.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-06-27
AI Technical Summary
The existing fire extinguishing devices of oil transmission pump rooms have great safety hazards, and the fire extinguishing coverage and fire extinguishing effects are extremely limited, so it is impossible to effectively deal with large-scale fire accidents in oil and gas collection and transportation systems.
A fire extinguishing component for oil and gas collection and transportation system is designed, including branch pipes, fire detection units, spraying units and branch controllers. The fire is detected through smoke sensors, flame sensors and temperature sensors, and the electric valve is controlled to open through the branch controller. The spraying unit sprays out fire extinguishing agent to extinguish the fire.
It achieves a fire extinguishing effect with a larger coverage range, faster response speed and higher detection accuracy, and can effectively deal with large-scale fire accidents in the oil and gas collection and transportation system, and can be repeatedly used to reduce the cost of the fire protection system.
Smart Images
Figure CN120204658A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of fire extinguishing equipment, and particularly to a fire extinguishing component and a fire extinguishing device for an oil and gas gathering and transportation system. Background Art
[0002] The fuel processed by the oil transfer pump in the oil and gas gathering and transportation system has highly flammable, explosive and corrosive characteristics. Therefore, the connection parts of the oil transfer pump group, the gap between the pump shaft and the pump housing, the idling and overheating phenomena caused by too tight shaft seals, and the corrosion cracks at the pump body and pipeline interfaces and between the pump housing and the balance pipe all constitute potential leakage risk points and may cause fuel leakage. Once the leaked fuel encounters an open flame, or the pump shaft of the oil transfer pump generates sparks due to friction or impact, it is extremely easy to ignite the fuel. Moreover, multiple oil transfer pumps are generally densely arranged, which is likely to cause large-scale fire accidents.
[0003] The existing fire extinguishing devices in the oil transfer pump house have great potential safety hazards. The main emergency fire extinguishing measures in the oil transfer pump house are mechanically triggered types, such as hanging a suspended dry powder fire extinguisher above the pump house. Its principle is to be triggered by the thermal expansion and fragmentation of a heat-sensitive glass tube. The triggering mechanism of the suspended dry powder fire extinguisher is relatively lagging and has limited capacity. Therefore, its fire coverage and fire extinguishing effect are extremely limited. The oil transfer pump itself has a large flow rate, and after leakage, the diffusion area is large, and the fire spreads rapidly after ignition. The current fire extinguishing devices cannot meet the requirements.
[0004] Therefore, providing a fire extinguishing component and a device with a large coverage area and rapid triggering has become an urgent problem to be solved. Summary of the Invention
[0005] The main purpose of the present invention is to provide a fire extinguishing component and a fire extinguishing device for an oil and gas gathering and transportation system, aiming to solve the existing technical problems in fire extinguishing.
[0006] To achieve the above purpose, the present invention provides a fire extinguishing component for an oil and gas gathering and transportation system, including: a branch pipe for inputting fire extinguishing agent, a first electric valve is provided at the entrance of the branch pipe, and the branch pipe is arranged above the oil and gas gathering and transportation system; at least one fire detection unit fixed on the branch pipe, the fire detection unit includes at least one of a smoke sensor, a flame sensor and a temperature sensor, and the fire detection unit is connected to the side of the branch pipe facing the oil transfer pump; at least one spraying unit installed on the branch pipe and communicating with the branch pipe, the spraying unit is arranged facing the oil and gas gathering and transportation system; a branch controller electrically connected to the first electric valve and the fire detection unit respectively, the branch controller is used to receive the detection signal of the fire detection unit and open the first electric valve after receiving the detection signal to enable the fire extinguishing agent to extinguish the fire on the oil and gas gathering and transportation system through the spraying unit.
[0007] Preferably, it further includes a vision module electrically connected to the shunt controller. The vision module is arranged facing the oil and gas gathering and transportation system. The vision module is used to collect real-time images of the oil and gas gathering and transportation system, and after processing the real-time images through a built-in fire judgment vision algorithm, it sends corresponding detection signals to the shunt controller; the vision module, the smoke sensor, the flame sensor, and the temperature sensor are arranged and installed on the branch pipe in any number and order combination.
[0008] Preferably, the fire detection unit further includes a first pressure transmitting sensor. The first pressure transmitting sensor is installed on the branch pipe, and the first pressure transmitting sensor is used to monitor the pressure of the fire extinguishing agent in the branch pipe.
[0009] Preferably, the spraying unit includes a connecting pipe and a nozzle. The connecting pipe is arranged between any two of the smoke sensor, the flame sensor, and the temperature sensor. One end or both ends of the connecting pipe are threadedly connected to the branch pipe, and the nozzle is communicated with the bottom end of the connecting pipe.
[0010] Preferably, the nozzle includes a first spraying section and a second spraying section. The top end of the first spraying section is communicated with the connecting pipe. An air intake notch for introducing air for foaming is provided on the peripheral side of the top end of the first spraying section. The second spraying section is communicated with the bottom end of the first spraying section. A foam generating port for spraying the foamed fire extinguishing agent is provided on the peripheral side of the bottom end of the second spraying section.
[0011] Preferably, the diffusion plate is arranged at the bottom end of the second spraying section. The angle between the end face of the diffusion plate and the horizontal plane at the bottom end of the second spraying section is greater than 30°, so that the fire extinguishing agent forms an umbrella-shaped liquid jet above the oil and gas gathering and transportation system after being refracted and diverted by the diffusion plate.
[0012] The present invention also provides a fire extinguishing device for an oil and gas gathering and transportation system, including a plurality of the fire extinguishing components for the oil and gas gathering and transportation system. It is characterized in that it further includes: a fire extinguishing agent storage tank storing a fire extinguishing agent, and a liquid level sensor is provided at the bottom of the fire extinguishing agent storage tank; a main pipeline connected to the fire extinguishing agent storage tank, the main pipeline is sequentially connected to the branch pipeline, and a second electric valve is connected between the main pipeline and the fire extinguishing agent storage tank; a total controller electrically connected to all the shunt controllers and the second electric valve, and the total controller is used to control the start and stop of the entire device and external alarm.
[0013] Preferably, it further includes a vibration sensor for detecting whether the oil transfer pump has abnormal vibration. The vibration sensor is connected to the oil transfer pump motor, and the vibration sensor is electrically connected to the total controller or the shunt controller. When the vibration sensor detects abnormal vibration of the oil transfer pump motor, it sends an abnormality to the total controller or the shunt controller to control the power supply of the oil transfer pump motor to be cut off.
[0014] Preferably, it further includes a water inlet pipe communicated with the main pipeline. The water inlet pipe is provided with a booster pump for enhancing the water inlet pressure and a second pressure transmitter for detecting the water pressure of the water inlet pipe; a capillary tube is provided at the top end of the fire extinguishing agent storage tank and communicated with the main pipeline. The fire extinguishing agent conveyed by the capillary tube and the water conveyed by the water inlet pipe are mixed in the main pipeline and then flow to the branch pipeline.
[0015] Preferably, a liquid delivery chamber communicated with the main pipeline is provided at the bottom of the fire extinguishing agent storage tank. A water level gauge communicating with the top of the fire extinguishing agent storage tank is provided on one side of the liquid delivery chamber. A pressure balance pipeline communicating with the outside is provided at the bottom of the liquid delivery chamber, and a pressure relief valve is provided in the pressure balance pipeline.
[0016] In the technical solution provided by the present invention, according to the number and distribution of the oil transfer pumps, the branch pipelines can be lengthened or multiple fire extinguishing components can be connected in parallel, so as to form a fire extinguishing coverage area without dead angles above the oil and gas gathering and transportation system. Moreover, each fire extinguishing component works independently, reducing the risk of the entire device being paralyzed due to the failure of a single component; one or more fire detection units provided above the oil transfer pump detect whether the oil transfer pump catches fire through sensors. After detecting the fire signal, the shunt controller controls to open the first electric valve so that the fire extinguishing agent is ejected from the spraying unit to extinguish the fire. Compared with the traditional suspended dry powder fire extinguisher, this design has a larger coverage area, higher detection accuracy, faster response, and can be reused repeatedly to reduce the cost of the fire protection system. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise stated, and the drawings in the figures do not constitute a proportional limitation.
[0018] Figure 1 It is a schematic structural diagram of an embodiment of the fire extinguishing device for the oil and gas gathering and transportation system of the present invention;
[0019] Figure 2 It is a schematic structural diagram of an embodiment of the fire extinguishing component for the oil and gas gathering and transportation system of the present invention;
[0020] Figure 3 It is Figure 2 The partial enlarged view at A in
[0021] Figure 4 It is a schematic structural diagram of an embodiment of the fire extinguishing device for the oil and gas gathering and transportation system of the present invention;
[0022] Figure 5 It is Figure 4 The cross-sectional view taken along line B-B in
[0023] Figure 6 The figure is a schematic structural diagram of an embodiment of a fire extinguishing device for an oil and gas gathering and transportation system according to the present invention.
[0024] In the figure:
[0025] 1. Fire extinguishing assembly; 11. Branch pipe; 111. First electric valve; 12. Spraying unit; 121. Connecting pipe; 122. Nozzle; 1221. First spraying section; 1222. Air inlet notch; 1223. Second spraying section; 1224. Foam generating port; 1225. Diffuser; 13. Branch controller; 14. Fire detection unit; 141. Smoke sensor; 142. Flame sensor; 143. Temperature sensor; 144. First pressure transmitter sensor; 15. Vision module;
[0026] 2. Fire extinguishing agent storage tank; 21. Liquid level sensor; 22. Capillary tube; 23. Liquid delivery chamber; 231. Pressure balance pipeline; 232. Pressure relief valve; 24. Water level gauge;
[0027] 3. Main pipe; 31. Second electric valve; 32. Drain valve;
[0028] 4. Master controller;
[0029] 5. Water inlet pipe; 51. Booster pump; 52. Second pressure transmitter sensor;
[0030] 6. Oil pump; 61. Vibration sensor. DETAILED DESCRIPTION
[0031] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are only for illustrative purposes. In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "include" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may be present or added.
[0032] In addition, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, or it may be a communication inside two components. All technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.
[0033] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0034] Please refer to Figures 1 to 6 , the present invention provides a fire extinguishing assembly 1 for an oil and gas gathering and transportation system, including: a branch pipe 11 for inputting a fire extinguishing agent, a first electric valve 111 is provided at the inlet of the branch pipe 11, and the branch pipe 11 is arranged above the oil and gas gathering and transportation system; at least one fire detection unit 14 is fixed on the branch pipe 11, and the fire detection unit 14 includes at least one of a smoke sensor 141, a flame sensor 142, and a temperature sensor 143, and the fire detection unit 14 is connected to the side of the branch pipe 11 facing the oil transfer pump 6; at least one spraying unit 12 is installed on the branch pipe 11 and communicates with the branch pipe 11, and the spraying unit 12 is arranged facing the oil and gas gathering and transportation system; a shunt controller 13 is electrically connected to the first electric valve 111 and the fire detection unit 14 respectively, and the shunt controller 13 is used to receive a fire signal and open the first electric valve 111 after receiving the fire signal so that the fire extinguishing agent extinguishes the fire on the oil and gas gathering and transportation system through the spraying unit 12.
[0035] In the technical solution provided by the present invention, according to the number and distribution of the oil transfer pumps 6, the branch pipe 11 can be lengthened or multiple fire extinguishing assemblies 1 can be connected in parallel, so as to form a fire extinguishing coverage area without dead corners above the oil and gas gathering and transportation system, and each fire extinguishing assembly 1 works independently, reducing the risk of the entire device being paralyzed due to the failure of a single component; one or more fire detection units 14 arranged above the oil transfer pump 6 detect whether the oil transfer pump 6 catches fire through sensors, and after detecting a fire signal, the shunt controller 13 controls the opening of the first electric valve 111 so that the fire extinguishing agent is ejected from the spraying unit 12 to extinguish the fire. Compared with the traditional hanging dry powder fire extinguisher, this design has a larger coverage area, higher detection accuracy, faster response, and can be reused repeatedly to reduce the cost of the fire protection system.
[0036] Please refer to Figure 2, in this embodiment, the fire extinguishing assembly further includes a vision module 15 electrically connected to the shunt controller 13. The vision module is oriented towards the oil and gas gathering and transportation system. The vision module 15 is used to collect real-time images of the oil and gas gathering and transportation system, and after processing the real-time images through a built-in fire detection vision algorithm, it sends corresponding detection signals to the shunt controller 13. The vision module 15 includes an industrial camera and a supporting lens. The industrial camera, the shunt controller 13 or the master controller 4 has a built-in vision algorithm, which can judge whether there is a fire in the gathering and transportation system by identifying the pixel colors in the real-time images and the visual algorithm contrast of the overall brightness of the pixel blocks. If a fire is identified, an alarm signal is sent to make the spraying unit 12 spray out the fire extinguishing agent for fire extinguishing; the vision module 15, the smoke sensor 141, the flame sensor 142 and the temperature sensor 143 are arranged and installed on the branch pipe 11 in any number and order. When one of the sensors detects an abnormality, an alarm signal is sent to the shunt controller 13, and the shunt controller 13 can verify and supplement this signal through the signals sent by other sensors to judge whether it meets the conditions for a fire. This multiple detection mechanism can greatly reduce the misjudgment probability of whether a fire occurs in the oil pump 6 and reduce the application cost of the fire protection device.
[0037] Please refer to Figure 2 , in this embodiment, the fire detection unit 14 further includes a first pressure transmission sensor 144. The first pressure transmission sensor 144 is installed on the branch pipe 11, and the first pressure transmission sensor 144 is used to monitor the pressure of the fire extinguishing agent in the branch pipe 11. The first pressure transmission sensor 144 can monitor the pressure change of the fire extinguishing agent in the branch pipe 11 in real time. When the pressure is lower than the preset pressure, the main pipe 3 is used to supplement the fire extinguishing agent in the branch pipe 11, and when the pressure is higher than the preset pressure, the supplement is stopped to avoid pipe explosion; this enables the entire assembly to quickly respond and release the fire extinguishing agent during a fire, and can also precisely control the release amount of the fire extinguishing agent by monitoring the pressure, avoiding waste and unnecessary losses.
[0038] Please refer to Figure 2 and Figure 3 , in this embodiment, the spraying unit 12 includes a connecting pipe 121 and a nozzle 122. The connecting pipe 121 is arranged between any two of the smoke sensor 141, the flame sensor 142 and the temperature sensor 143. One end or both ends of the connecting pipe 121 are threadedly connected to the branch pipe 11, and the nozzle 122 communicates with the bottom end of the connecting pipe 121. This design ensures that the signal transmission between the sensors is not interfered, and also enables the spraying unit 12 to be closely integrated into the fire detection system, enabling the spraying unit 12 to quickly respond to the detection area of the corresponding sensor and deliver the fire extinguishing agent to the nozzle 122 through the connecting pipe 121 and then spray it out.
[0039] Please refer to Figure 2 and Figure 3, in this embodiment, the nozzle 122 includes a first spraying section 1221 and a second spraying section 1223. The top end of the first spraying section 1221 is connected to the connecting pipe 121. An air intake notch 1222 for introducing air for foaming is provided on the peripheral side of the top end of the first spraying section 1221. The second spraying section 1223 is connected to the bottom end of the first spraying section 1221. A foam generation port 1224 for spraying the foamed fire extinguishing agent is provided on the peripheral side of the bottom end of the second spraying section 1223. Since the formation of foam requires the effective mixing of the fire extinguishing agent and air, the air intake notch 1222 provided on the peripheral side of the top end of the first spraying section 1221 allows air in the surrounding environment to be introduced when the fire extinguishing agent flows through the nozzle 122. The generated foam is ejected from the foam generation port 1224 and further dispersed and refined, which can more effectively cover the fire source, isolate oxygen, and inhibit the combustion of the flame.
[0040] Please refer to Figure 2 and Figure 3 , in this embodiment, the diffusion plate 1225 is arranged at the bottom end of the second spraying section 1223. The angle between the end face of the diffusion plate 1225 and the horizontal plane at the bottom end of the second spraying section 1223 is greater than 30°. This enables the fire extinguishing agent to form an umbrella-shaped liquid jet above the oil and gas gathering and transportation system after being refracted and deflected by the diffusion plate 1225. This not only increases the contact area between the fire extinguishing agent and the fire source but also prolongs the residence time of the fire extinguishing agent above the fire source. The design of the diffusion plate 1225 allows the fire extinguishing agent to be sprayed onto the fire source in a gentler and more uniform manner, avoiding splashing or rebounding phenomena that may occur due to high-pressure spraying.
[0041] Please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6 , the present invention also provides a fire extinguishing device for an oil and gas gathering and transportation system, which includes several fire extinguishing components 1 for the oil and gas gathering and transportation system, and further includes: a fire extinguishing agent storage tank 2 storing the fire extinguishing agent. A liquid level sensor 21 is provided at the bottom of the fire extinguishing agent storage tank 2 to detect the internal storage situation of the fire extinguishing agent, facilitating timely replenishment of the fire extinguishing agent; a main pipeline 3 connected to the fire extinguishing agent storage tank 2. The main pipeline 3 is sequentially connected to the branch pipeline 11. A second electric valve 31 is connected between the main pipeline 3 and the fire extinguishing agent storage tank 2 to control the transportation of the fire extinguishing agent to the main pipeline 3; a total controller 4 electrically connected to all sub-controllers 13 and the second electric valve 31. The total controller 4 is used to control the start and stop of the entire device and external alarm. The total controller 4 can alarm the staff through the alarm lights on both sides of it, or communicate with a remote terminal to send alarm information. A vibration sensor 61 is provided on the oil transfer pump 6 to detect in real time whether there is abnormal vibration in the drive motor of the oil transfer pump 6. The vibration sensor 61 is electrically connected to the total controller 4 and can send an abnormal signal to the total controller 4, causing the corresponding fire extinguishing component 1 to start or notify the staff through alarm for maintenance.
[0042] Please refer to Figure 1 、 Figure 4 and Figure 5 ,In this embodiment, a water-free fire extinguishing device is provided. A liquid delivery chamber 23 communicating with the main pipeline 3 is provided at the bottom of the fire extinguishing agent storage tank 2. A water level gauge 24 communicating with the top of the fire extinguishing agent storage tank 2 is provided on one side of the liquid delivery chamber 23. A pressure balance pipeline 231 communicating with the outside is provided at the bottom of the liquid delivery chamber 23. A pressure relief valve 232 is provided in the pressure balance pipeline 231. When the internal pressure of the fire extinguishing agent storage tank 2 exceeds a preset value, the pressure relief valve 232 will automatically open to release the excess pressure and ensure the safe operation of the storage tank. Please refer to Figure 6 ,In this embodiment, a water-inlet mixing type fire extinguishing device is provided. The fire extinguishing device for the oil and gas gathering and transportation system further includes a water inlet pipe 5 communicating with the main pipeline 3. The water inlet pipe 5 is provided with a booster pump 51 for enhancing the water inlet pressure and a second pressure transmission sensor 52 for detecting the water pressure in the water inlet pipe 5. The booster pump 51 can improve the water inlet efficiency, and the second pressure transmission sensor 52 can realize the real-time monitoring function and timely detect abnormal water pressure to prevent pipe bursting.
[0043] Please refer to Figure 6 ,In this embodiment, a capillary tube 22 is provided at the top end of the fire extinguishing agent storage tank 2 of the water-inlet mixing type fire extinguishing device and communicates with the main pipeline 3. The fire extinguishing agent conveyed by the capillary tube 22 and the water conveyed by the water inlet pipe 5 are mixed in the main pipeline 3 and then flow to the branch pipeline 11. When the high-speed water flow in the main pipeline passes through the main pipeline 3, due to the increase in the flow rate, the pressure near the main pipeline 3 will decrease. At the same time, the upper capillary tube 22 is connected to the main pipeline 3. Due to the decrease in the pressure of the main pipeline 3, a negative pressure will be generated inside the capillary tube 22. This negative pressure will attract the liquid fire extinguishing agent in the fire extinguishing agent storage tank 2, so that it enters the main pipeline 3 through the capillary tube 22. The foam liquid entering the main pipeline 3 meets and mixes with the high-speed water flow to form a foam mixed liquid. This structure realizes the automatic mixing and spraying of water and foam liquid, improves the fire extinguishing efficiency, and reduces the burden on the operator.
[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A fire extinguishing assembly for an oil and gas gathering and transportation system, characterized in that: include: A branch pipe (11) is used to input a fire extinguishing agent, a first electric valve (111) is provided at the inlet of the branch pipe (11), and the branch pipe (11) is arranged above the oil and gas gathering and transportation system; at least one fire detection unit (14) fixed on the branch pipe (11), the fire detection unit (14) comprising at least one of a smoke sensor (141), a flame sensor (142) and a temperature sensor (143), the fire detection unit (14) being connected to a side of the branch pipe (11) facing the oil delivery pump (6); at least one spray unit (12), installed on the branch pipe (11) and connected to the branch pipe (11), the spray unit (12) being arranged toward the oil and gas gathering and transportation system; The branch controller (13) is electrically connected to the first electric valve (111) and the fire detection unit (14), respectively. The branch controller (13) is used to receive a detection signal from the fire detection unit (14), and after receiving the detection signal, open the first electric valve (111) to allow the fire extinguishing agent to extinguish the oil and gas gathering and transportation system through the spraying unit (12).
2. The fire extinguishing assembly for oil and gas gathering and transportation system according to claim 1, characterized in that: It also includes a visual module (15) electrically connected to the branch controller (13), the visual module (15) being arranged toward the oil and gas gathering and transportation system, and the visual module (15) being used to collect real-time images of the oil and gas gathering and transportation system, and to process the real-time images with a built-in visual algorithm for fire judgment, and then send corresponding detection signals to the branch controller (13); The visual module (15), the smoke sensor (141), the flame sensor (142) and the temperature sensor (143) are arranged in any order and combined and installed on the branch pipe (11).
3. The fire extinguishing assembly for oil and gas gathering and transportation system according to claim 2, characterized in that: The fire detection unit (14) further comprises a first pressure transmitter sensor (144), wherein the first pressure transmitter sensor (144) is installed on the branch pipe (11), and the first pressure transmitter sensor (144) is used to monitor the pressure of the fire extinguishing agent in the branch pipe (11).
4. The fire extinguishing assembly for oil and gas gathering and transportation system according to claim 3, characterized in that: The spray unit (12) comprises a connecting pipe (121) and a nozzle (122); the connecting pipe (121) is arranged between any two of the smoke sensor (141), the flame sensor (142) and the temperature sensor (143); one end or both ends of the connecting pipe (121) are threadedly connected to the branch pipe (11); and the nozzle (122) is connected to the bottom end of the connecting pipe (121).
5. The fire extinguishing assembly for oil and gas gathering and transportation system according to claim 4, characterized in that: The nozzle (122) comprises a first spraying section (1221) and a second spraying section (1223); the top end of the first spraying section (1221) is connected to the connecting pipe (121); an air inlet notch (1222) for introducing air for foaming is provided on the periphery of the top end of the first spraying section (1221); the second spraying section (1223) is connected to the bottom end of the first spraying section (1221); a foam generating port (1224) for spraying a foamed fire extinguishing agent is provided on the periphery of the bottom end of the second spraying section (1223).
6. The fire extinguishing assembly for oil and gas gathering and transportation system according to claim 5, characterized in that: The diffuser (1225) is arranged at the bottom end of the second spraying section (1223), and the angle between the end face of the diffuser (1225) and the horizontal plane at the bottom end of the second spraying section (1223) is less than 30°, so that the fire extinguishing agent forms an umbrella-shaped liquid jet above the oil and gas gathering and transportation system after being refracted and guided by the diffuser (1225).
7. A fire extinguishing device for oil and gas gathering and transportation system, comprising a plurality of fire extinguishing assemblies (1) for oil and gas gathering and transportation system according to any one of claims 1 to 6, characterized in that: Also includes: A fire extinguishing agent storage tank (2) storing fire extinguishing agent, wherein a liquid level sensor (21) is provided at the bottom of the fire extinguishing agent storage tank (2); A main pipe (3) is connected to the fire extinguishing agent storage tank (2), the main pipe (3) is connected to the branch pipe (11) in sequence, and a second electric valve (31) is connected between the main pipe (3) and the fire extinguishing agent storage tank (2); The main controller (4) is electrically connected to all the branch controllers (13) and the second electric valve (31), and the main controller (4) is used to control the start and stop of the entire device and to generate an external alarm.
8. The fire extinguishing device for oil and gas gathering and transportation system according to claim 7, characterized in that: It also includes a vibration sensor (61) for detecting whether the oil pump has abnormal vibration, the vibration sensor (61) is connected to the oil pump motor, and the vibration sensor (61) is electrically connected to the main controller (4) or the branch controller (13). When the vibration sensor (61) detects abnormal vibration of the oil pump motor, it sends an abnormality to the main controller (4) or the branch controller (13) to control cutting off the power supply of the oil pump motor.
9. The fire extinguishing device for oil and gas gathering and transportation system according to claim 8, characterized in that: It also includes a water inlet pipe (5) connected to the main pipe (3), wherein the water inlet pipe (5) is provided with a booster pump (51) for increasing the water pressure of the inlet water and a second pressure transmitter (52) for detecting the water pressure of the water inlet pipe (5); A capillary tube (22) is provided at the top of the fire extinguishing agent storage tank (2) and is connected to the main pipe (3); the fire extinguishing agent transported by the capillary tube (22) and the water transported by the water inlet pipe (5) are mixed in the main pipe (3) and then flow to the branch pipe (11).
10. The fire extinguishing device for oil and gas gathering and transportation system according to claim 8, characterized in that: The bottom of the fire extinguishing agent storage tank (2) is provided with a liquid delivery chamber (23) connected to the main pipe (3); one side of the liquid delivery chamber (23) is provided with a water level gauge (24) connected to the top of the fire extinguishing agent storage tank (2); the bottom of the liquid delivery chamber (23) is provided with a pressure balancing pipeline (231) connected to the outside; and a pressure relief valve (232) is provided in the pressure balancing pipeline (231).