Fire extinguishing assembly and fire extinguishing device for oil and gas gathering and transportation system

Abstract

The utility model relates to the technical field of fire extinguishing equipment, and discloses a fire extinguishing assembly and a fire extinguishing device for an oil and gas gathering and transportation system, the fire extinguishing assembly comprises a branch pipe used for inputting fire extinguishing agents, a first electric valve is arranged at an inlet of the branch pipe, and the branch pipe is arranged above the oil and gas gathering and transportation system; the at least one fire behavior detection unit is fixed to the branch pipe, the fire behavior detection unit comprises at least one sensor of a smoke sensor, a flame sensor and a temperature sensor, and the fire behavior detection unit is connected to the side, facing the oil delivery pump, of the branch pipe; the at least one spraying unit is mounted on the branch pipe and communicated with the branch pipe, and the spraying unit is arranged towards the oil and gas gathering and transportation system; and the shunt controller is electrically connected with the first electric valve and the fire behavior detection unit, and the shunt controller is used for receiving a detection signal of the fire behavior detection unit. Compared with a traditional oil transportation system fire extinguishing device, the design is larger in coverage range and quicker in response.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing equipment, and in particular to a fire extinguishing component and fire extinguishing device for oil and gas gathering and transportation systems. Background Technology

[0002] Oil pumps in oil and gas gathering and transportation systems handle fuels that are highly flammable, explosive, and corrosive. Therefore, potential leakage points include pump assembly connections, gaps between the pump shaft and casing, overly tight shaft seals leading to idling and overheating, and corrosion cracks at pump body and pipe interfaces, as well as between the pump casing and balance pipe. These leaks can easily ignite fuel if exposed to an open flame or sparked by friction or impact on the pump shaft. Furthermore, the close proximity of multiple pumps increases the risk of large-scale fires.

[0003] The existing fire extinguishing systems in oil pumping stations pose significant safety hazards. The primary emergency fire extinguishing measure in these stations is mechanically triggered, such as hanging a suspended dry powder fire extinguisher above the pumping station. This extinguisher works by triggering the extinguisher through the expansion and shattering of a heat-sensitive glass tube. However, the triggering mechanism of suspended dry powder fire extinguishers is relatively slow, and their capacity is limited, resulting in extremely limited fire coverage and extinguishing effectiveness. Furthermore, oil pumps themselves have a large flow rate, and leaks cause a wide spread of fire, leading to rapid fire spread after ignition. Current fire extinguishing systems are insufficient to address these issues.

[0004] Therefore, providing a fire extinguishing component and device with a large coverage area and rapid triggering has become an urgent problem to be solved. Utility Model Content

[0005] The main purpose of this utility model is to provide a fire extinguishing component and fire extinguishing device for oil and gas gathering and transportation systems, aiming to solve the current technical problems of fire extinguishing.

[0006] To achieve the above objectives, this utility model provides a fire extinguishing component for an oil and gas gathering and transportation system, comprising: a branch pipe for inputting fire extinguishing agent, wherein a first electric valve is provided at the inlet of the branch pipe, and the branch pipe is positioned above the oil and gas gathering and transportation system; at least one fire detection unit fixed to the branch pipe, the fire detection unit including at least one of a smoke sensor, a flame sensor, and a temperature sensor, the fire detection unit being connected to the side of the branch pipe facing the oil pump; at least one spraying unit installed on and connected to the branch pipe, the spraying unit being positioned facing the oil and gas gathering and transportation system; and a branch controller electrically connected to the first electric valve and the fire detection unit respectively, the branch controller being used to receive detection signals from the fire detection unit, and upon receiving the detection signals, opening the first electric valve to allow the fire extinguishing agent to extinguish the fire in the oil and gas gathering and transportation system through the spraying unit.

[0007] Preferably, it also includes a vision module electrically connected to the branch controller. The vision module is oriented toward 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 detection vision algorithm, it sends the corresponding detection signal to the branch 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.

[0008] Preferably, the fire detection unit further includes a first pressure transmitter sensor, which is installed on the branch pipe and is used to monitor the pressure of the extinguishing agent in the branch pipe.

[0009] Preferably, the spraying unit includes a connecting pipe and a nozzle. The connecting pipe is disposed between any two of the smoke sensor, the flame sensor, and the temperature sensor. One or both ends of the connecting pipe are threadedly connected to the branch pipe, and the nozzle is connected to 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 connected to the connecting pipe, and the top periphery of the first spraying section is provided with an air inlet for introducing air for foaming. The second spraying section is connected to the bottom end of the first spraying section, and the periphery of the bottom end of the second spraying section is provided with a foam generation port for spraying out foamed fire extinguishing agent.

[0011] Preferably, the diffuser is disposed at the bottom end of the second spraying section, and the angle between the end face of the diffuser and the horizontal plane at the bottom end of the second spraying section is greater than 30°, so that the 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.

[0012] This utility model also provides a fire extinguishing device for an oil and gas gathering and transportation system, comprising several fire extinguishing components for an oil and gas gathering and transportation system, characterized in that it further comprises: a fire extinguishing agent storage tank containing fire extinguishing agent, wherein 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, wherein the main pipeline is sequentially connected to the branch pipelines, and a second electric valve is connected between the main pipeline and the fire extinguishing agent storage tank; and a main controller electrically connected to all the branch controllers and the second electric valve, wherein the main controller is used to control the start and stop of the entire device and to trigger an external alarm.

[0013] Preferably, it also includes a vibration sensor for detecting whether the oil pump has abnormal vibration. The vibration sensor is connected to the oil pump motor and electrically connected to the main controller or branch controller. When the vibration sensor detects abnormal vibration of the oil pump motor, it sends an abnormality to the main controller or branch controller to control the power supply of the oil pump motor to be cut off.

[0014] Preferably, it also includes a water inlet pipe connected to the main pipeline, the water inlet pipe being equipped with a booster pump for increasing the water pressure and a second pressure transmitter sensor for detecting the water pressure in the water inlet pipe; the top of the fire extinguishing agent storage tank is provided with a capillary tube connected to the main pipeline, the fire extinguishing agent transported by the capillary tube and the water transported by the water inlet pipe are mixed in the main pipeline and then flow to the branch pipeline.

[0015] Preferably, the bottom of the fire extinguishing agent storage tank is provided with a liquid delivery chamber that communicates with the main pipeline, a water level gauge that communicates with the top of the fire extinguishing agent storage tank is provided on one side of the liquid delivery chamber, a pressure balancing pipeline that communicates with the outside is provided at the bottom of the liquid delivery chamber, and a pressure relief valve is provided in the pressure balancing pipeline.

[0016] The technical solution provided by this utility model allows for the extension of branch pipes or the parallel connection of multiple fire extinguishing components based on the number and distribution of oil pumps. This creates a fire extinguishing coverage area without blind spots above the oil and gas gathering and transportation system. Each fire extinguishing component operates independently, reducing the risk of the entire system failing due to a single component malfunction. One or more fire detection units installed above the oil pumps use sensors to detect whether the pumps are on fire. Upon detecting a fire signal, the branch controller opens the first electric valve to allow the extinguishing agent to be sprayed from the spraying unit to extinguish the flames. Compared to traditional suspended dry powder fire extinguishers, this design offers a larger coverage area, higher detection accuracy, faster response, and reusability, reducing the cost of the fire protection system. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1 This is a schematic diagram of one embodiment of the fire extinguishing device of the present invention for use in oil and gas gathering and transportation systems;

[0019] Figure 2 This is a schematic diagram of the structure of one embodiment of the fire extinguishing component of the present invention for an oil and gas gathering and transportation system;

[0020] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is a schematic diagram of one embodiment of the fire extinguishing device of the present invention for use in oil and gas gathering and transportation systems;

[0022] Figure 5 for Figure 4 Sectional view at point BB;

[0023] Figure 6 This is a schematic diagram of one embodiment of the fire extinguishing device of the present invention for oil and gas gathering and transportation systems.

[0024] In the picture:

[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; 1223. Second spraying section; 1224. Foam generation 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. Extinguishing agent storage tank; 21. Liquid level sensor; 22. Capillary tube; 23. Liquid delivery chamber; 231. Pressure balancing pipeline; 232. Pressure relief valve; 24. Water level gauge;

[0027] 3. Main pipeline; 31. Second electric valve; 32. Drain valve;

[0028] 4. Main controller;

[0029] 5. Water inlet pipe; 51. Booster pump; 52. Second pressure transmitter sensor;

[0030] 6. Oil pump; 61. Vibration sensor. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0032] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal communication between two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] Furthermore, the technical features involved in the 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 This utility model provides a fire extinguishing component 1 for an oil and gas gathering and transportation system, comprising: a branch pipe 11 for inputting fire extinguishing agent, a first electric valve 111 at the inlet of the branch pipe 11, and the branch pipe 11 being positioned above the oil and gas gathering and transportation system; at least one fire detection unit 14 fixed to the branch pipe 11, the fire detection unit 14 including 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 the side of the branch pipe 11 facing the oil pump 6; at least one spraying unit 12 installed on and connected to the branch pipe 11, the spraying unit 12 being positioned facing the oil and gas gathering and transportation system; and a branch controller 13 electrically connected to the first electric valve 111 and the fire detection unit 14, the branch controller 13 receiving fire signals and, upon receiving a fire signal, opening the first electric valve 111 to allow the fire extinguishing agent to extinguish the fire in the oil and gas gathering and transportation system through the spraying unit 12.

[0035] In the technical solution provided by this utility model, branch pipes 11 can be extended or multiple fire extinguishing components 1 can be connected in parallel according to the number and distribution of oil pumps 6. This can form a fire extinguishing coverage area without blind spots above the oil and gas gathering and transportation system. Moreover, each fire extinguishing component 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 set above the oil pumps 6 detect whether the oil pumps 6 are on fire through sensors. After detecting the fire signal, the branch controller 13 controls the opening of the first electric valve 111 to allow the fire extinguishing agent to be sprayed from the spraying unit 12 to extinguish the flames. Compared with traditional suspended dry powder fire extinguishers, this design has a larger coverage area, higher detection accuracy, faster response, and can be reused to reduce the cost of the fire protection system.

[0036] Please refer to Figure 2 In this embodiment, the fire extinguishing assembly also includes a vision module 15 electrically connected to the branch controller 13. The vision module is positioned facing 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, process the real-time images through a built-in fire detection visual algorithm, and send corresponding detection signals to the branch controller 13. The vision module 15 includes an industrial camera and a matching lens. The industrial camera, branch controller 13, or main controller 4 have built-in visual algorithms that can determine whether the gathering and transportation system is on fire by recognizing the pixel colors in the real-time images and the contrast of the overall brightness of the pixel blocks. If a fire is detected, an alarm signal is issued, causing the spray unit 12 to spray extinguishing agent to extinguish the fire. The vision module 15, smoke sensor 141, flame sensor 142, and 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, it will send an alarm signal to the branch controller 13. The branch controller 13 can then verify and supplement the signal sent by other sensors to determine whether the conditions for a fire have been met. This multi-detection mechanism can greatly reduce the probability of misjudging whether a fire has occurred in the oil pump 6 and reduce the application cost of the fire-fighting equipment.

[0037] Please refer to Figure 2 In this embodiment, the fire detection unit 14 further includes a first pressure transmitter sensor 144, which is installed on the branch pipe 11. The first pressure transmitter sensor 144 is used to monitor the pressure of the extinguishing agent in the branch pipe 11. The first pressure transmitter sensor 144 can monitor the pressure change of the extinguishing agent in the branch pipe 11 in real time. When the pressure is lower than the preset pressure, the extinguishing agent in the branch pipe 11 is replenished through the main pipe 3; when the pressure is higher than the preset pressure, the replenishment is stopped to avoid pipe bursting. This allows the entire component to respond quickly and release the extinguishing agent when a fire occurs. It can also accurately control the release amount of the 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 disposed between any two of the smoke sensor 141, the flame sensor 142, and the temperature sensor 143. One 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. This design ensures that the signal transmission between the sensors is not interfered with, and also allows the spraying unit 12 to be tightly 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 extinguishing agent to the nozzle 122 through the connecting pipe 121 before spraying it out.

[0039] Please refer to Figure 2 and Figure 3In 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, and an air inlet 1222 for introducing air to form foam 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, and a foam generating port 1224 for spraying out the foamed extinguishing agent is provided on the periphery of the bottom end of the second spraying section 1223. Because the formation of foam requires effective mixing of extinguishing agent and air, the air inlet 1222 provided on the periphery of the top end of the first spraying section 1221 allows air from the surrounding environment to be introduced when the extinguishing agent flows through the nozzle 122. The generated foam is sprayed out from the foam generating port 1224 for further dispersion and refinement, which can more effectively cover the fire source, isolate oxygen, and suppress the combustion of the flame.

[0040] Please refer to Figure 2 and Figure 3 In this embodiment, the diffuser 1225 is disposed at the bottom end of the second spraying section 1223. 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 greater than 30°, so that the 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. This not only increases the contact area between the extinguishing agent and the fire source, but also increases the residence time of the extinguishing agent above the fire source. The design of the diffuser 1225 enables the extinguishing agent to be sprayed onto the fire source in a gentler and more uniform manner, avoiding splashing or rebound phenomena that may occur due to high-pressure injection.

[0041] Please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6 This utility model also provides a fire extinguishing device for an oil and gas gathering and transportation system, including several fire extinguishing components 1 for the oil and gas gathering and transportation system, and further including: a fire extinguishing agent storage tank 2, which stores fire extinguishing agent, and a liquid level sensor 21 is provided at the bottom of the fire extinguishing agent storage tank 2 to detect the internal fire extinguishing agent storage status, so as to facilitate timely replenishment of fire extinguishing agent; a main pipeline 3, which is connected to the fire extinguishing agent storage tank 2, and the main pipeline 3 is connected to the branch pipeline 11 in sequence. A second electric valve 31 is connected between the main pipeline 3 and the fire extinguishing agent storage tank 2 to control the delivery of fire extinguishing agent to the main pipeline 3; a main controller 4, which is electrically connected to all branch controllers 13 and the second electric valve 31. The main controller 4 is used to control the start and stop of the entire device and external alarm. The main controller 4 can alarm the staff through the alarm lights on both sides, and can also communicate with a remote terminal to send alarm information. The oil pump 6 is equipped with a vibration sensor 61, which can detect whether there is abnormal vibration in the drive motor of the oil pump 6 in real time. The vibration sensor 61 is electrically connected to the main controller 4 and can send an abnormal signal to the main controller 4, so that the corresponding fire extinguishing component 1 can be activated or the staff can be notified to carry out maintenance through an alarm.

[0042] Please refer to Figure 1 , Figure 4 and Figure 5 In this embodiment, a waterless fire extinguishing device is provided. The bottom of the fire extinguishing agent storage tank 2 is provided with a delivery chamber 23 connected to the main pipeline 3. A water level gauge 24 connected to the top of the fire extinguishing agent storage tank 2 is provided on one side of the delivery chamber 23. A pressure balancing pipeline 231 connected to the outside is provided at the bottom of the delivery chamber 23. A pressure relief valve 232 is provided inside the pressure balancing 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-mixing fire extinguishing device is provided. The fire extinguishing device for the oil and gas gathering and transportation system also includes a water inlet pipe 5 connected to the main pipeline 3. The water inlet pipe 5 is equipped with a booster pump 51 for increasing the water pressure and a second pressure transmitter sensor 52 for detecting the water pressure of the water inlet pipe 5. The booster pump 51 can improve the water inlet efficiency, and the second pressure transmitter sensor 52 can realize the real-time monitoring function to detect abnormal water pressure in time and prevent pipe bursts.

[0043] Please refer to Figure 6 In this embodiment, the top of the extinguishing agent storage tank 2 of the water-mixing fire extinguishing device is equipped with a capillary tube 22 connected to the main pipeline 3. The extinguishing agent transported by the capillary tube 22 and the water transported 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, the pressure near the main pipeline 3 will decrease due to the increase in flow velocity. At the same time, the capillary tube 22 above is connected to the main pipeline 3. Due to the decrease in pressure in the main pipeline 3, a negative pressure will be generated inside the capillary tube 22. This negative pressure will attract the liquid extinguishing agent in the extinguishing agent storage tank 2, causing it to enter 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 mixture. This structure realizes the automatic mixing and spraying of water and foam liquid, improves the fire extinguishing efficiency, and reduces the burden on operators.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fire suppression assembly for an oil and gas gathering system, comprising: The application relates to a branch pipe (11) for inputting fire extinguishing agent, wherein a first electric valve (111) is arranged at the inlet of the branch pipe (11), and the branch pipe (11) is arranged above an oil and gas gathering and transferring system. At least one fire detection unit (14) is fixed to the branch pipe (11), wherein the fire detection unit (14) comprises 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 one side of the branch pipe (11) facing the oil pump (6). At least one spraying unit (12) is arranged on the branch pipe (11) and communicates with the branch pipe (11), and the spraying unit (12) is arranged towards the oil and gas gathering and transferring system. A branch controller (13) is electrically connected with the first electric valve (111) and the fire detection unit (14), respectively, and the branch controller (13) is used for receiving a detection signal of the fire detection unit (14) and opening the first electric valve (111) to make the fire extinguishing agent pass through the spraying unit (12) to extinguish the fire of the oil and gas gathering and transferring system. A visual module (15) is electrically connected with the branch controller (13), and the visual module (15) is arranged towards the oil and gas gathering and transferring system, and the visual module (15) is used for collecting real-time images of the oil and gas gathering and transferring system, processing the real-time images through a built-in fire judgment visual algorithm, and sending corresponding detection signals to the branch controller (13).

2. The fire suppression assembly for use in an oil and gas gathering system of claim 1, wherein, The visual module (15), the smoke sensor (141), the flame sensor (142) and the temperature sensor (143) are arranged on the branch pipe (11) in any number of sequences. The fire detection unit (14) further comprises a first pressure transmitting sensor (144) arranged on the branch pipe (11), and the first pressure transmitting sensor (144) is used for monitoring the pressure of the fire extinguishing agent in the branch pipe (11).

3. The fire suppression assembly for use in an oil and gas gathering system of claim 2, wherein, The spraying 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 with the branch pipe (11), and the nozzle (122) is communicated with the bottom end of the connecting pipe (121).

4. The fire suppression assembly for use in an oil and gas gathering system of claim 3, wherein, 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 communicated with the connecting pipe (121), air inlet notches (1222) for introducing air to foam are arranged on the top end of the first spraying section (1221), the second spraying section (1223) is communicated with the bottom end of the first spraying section (1221), and foam generating ports (1224) for spraying the foamed fire extinguishing agent are arranged on the bottom end of the second spraying section (1223).

5. The fire suppression assembly for use in an oil and gas gathering system of claim 4, wherein, ​ 6. The fire suppression assembly for use in an oil and gas gathering system of claim 5, wherein, The second spraying section (1223) is provided with a diffusion sheet (1225) at the bottom end, and the angle between the end face of the diffusion sheet (1225) and the horizontal plane of the bottom end of the second spraying section (1223) is less than 30°, so that the fire extinguishing agent forms an umbrella-shaped liquid spray above the oil and gas gathering and transportation system after being refracted and guided by the diffusion sheet (1225).

7. A fire extinguishing device for an oil and gas gathering system comprising several fire extinguishing assemblies (1) for an oil and gas gathering system according to any one of claims 1 to 6, characterized in that Further comprising: a fire extinguishing agent storage tank (2) storing fire extinguishing agent, wherein the bottom of the fire extinguishing agent storage tank (2) is provided with a liquid level sensor (21); a main pipeline (3) in communication with the fire extinguishing agent storage tank (2), wherein the main pipeline (3) is in communication with the branch pipeline (11) in sequence, and a second electric valve (31) is connected between the main pipeline (3) and the fire extinguishing agent storage tank (2); a total controller (4) electrically connected with all the branch controllers (13) and the second electric valve (31), wherein the total controller (4) is used to control the start and stop of the whole device and external alarm.

8. The fire suppression apparatus for use in an oil and gas gathering system of claim 7, wherein, Further comprising a vibration sensor (61) for detecting whether the oil transfer pump has abnormal vibration, wherein the vibration sensor (61) is connected with the oil transfer pump motor, and the vibration sensor (61) is electrically connected with the total controller (4) or the branch controller (13), and when the vibration sensor (61) detects abnormal vibration of the oil transfer pump motor, it sends an exception to the total controller (4) or the branch controller (13) to control the power supply of the oil transfer pump motor to be cut off.

9. The fire suppression apparatus for use in an oil and gas gathering system of claim 8, wherein, Further comprising a water inlet pipe (5) in communication with the main pipeline (3), wherein the water inlet pipe (5) is provided with a booster pump (51) for enhancing the water pressure and a second pressure variable sensor (52) for detecting the water pressure of the water inlet pipe (5); the top of the fire extinguishing agent storage tank (2) is provided with a capillary tube (22) in communication with the main pipeline (3), and the fire extinguishing agent delivered by the capillary tube (22) and the water delivered by the water inlet pipe (5) are mixed in the main pipeline (3) and then flow to the branch pipeline (11).

10. The fire suppression apparatus for use in an oil and gas gathering system of claim 8, wherein, the bottom of the fire extinguishing agent storage tank (2) is provided with a liquid delivery cavity (23) in communication with the main pipeline (3), one side of the liquid delivery cavity (23) is provided with a water level meter (24) in communication with the top of the fire extinguishing agent storage tank (2), and the bottom of the liquid delivery cavity (23) is provided with a pressure balance pipeline (231) in communication with the outside, and the pressure balance pipeline (231) is provided with a pressure relief valve (232).

Images