A lifting-type oil spill interception device and method for river channels

Abstract

This invention discloses a lifting-type oil spill containment device and method for rivers, including a float-type oil boom and two anchor piles installed on both sides of the proposed flood control channel. Each anchor pile has a T-shaped vertical groove with a sliding block that can slide up and down within it. The sliding block, with an I-shaped cross-section, has two symmetrical horizontal pins. This invention utilizes pre-installed anchor piles on both sides of the proposed flood control channel. The anchor piles have a fixed pulley at the top and a winch on the side. In the event of an oil spill, rescue personnel can quickly pull the float-type oil boom across the river using a steel cable, completing the anchoring and deployment of the lifting-type oil boom, thus timely intercepting the oil spill and achieving the goals of risk control and protecting the downstream ecological environment.

Description

Technical Field

[0001] This invention relates to the field of river oil spill prevention and control technology, and in particular to a lifting river oil spill interception device and oil spill interception method. Background Technology

[0002] Crude oil and refined oil products, as important strategic energy resources, are a powerful driving force for the advancement of industrial civilization and a significant contributor to the comprehensive transformation of human material culture. Their transportation often utilizes buried pipelines, whose routes inevitably cross rivers and waterways. Due to natural disasters such as earthquakes and floods, as well as river sand mining and diversion projects, the risk of sudden oil spills from pipelines crossing rivers is constantly increasing. This poses a significant threat to the lives and property of people and the ecological environment in the surrounding areas. Therefore, exploring methods for intercepting and preventing oil spills from pipelines crossing rivers is particularly important.

[0003] To improve the ability to respond to oil spill risks, relevant units have established corresponding emergency response teams. However, according to relevant research findings, current emergency response plans and facilities are mainly aimed at preventing oil spills in marine and port waters, with relatively few dedicated facilities and devices for intercepting oil spills from pipelines crossing rivers. When dealing with sudden oil spills in rivers, the location for intercepting the spill downstream needs to be quickly determined, making it difficult to select the optimal interception point. Furthermore, the disposal process requires on-site deployment of equipment and facilities, and oil booms and other equipment often lack reliable anchoring points on-site, requiring hasty emergency fixation by manpower. This often results in unreliable and secure anchoring, leading to prolonged oil spill interception and disposal times, potentially delaying optimal disposal opportunities and causing the oil spill pollution to spread further, significantly increasing the area and cost of oil spill control. Summary of the Invention

[0004] In order to overcome the technical problems in the background art, the present invention provides a lifting-type river oil spill interception device and oil spill interception method.

[0005] The technical solution adopted by this invention to solve its technical problem is: a lifting-type river oil spill interception device, including a float-type oil boom and two anchor piles set on both sides of the river to be defended. The anchor piles are provided with a vertical groove with a T-shaped cross-section. Two sliders that can slide up and down are provided in the vertical groove. Two horizontal pins are symmetrically provided on the sliders with an I-shaped cross-section. Pin holes for pin insertion and fixing are opened on the anchor piles on both sides of the vertical groove. The sliders can be installed and fixed by inserting the pins into the pin holes on the anchor piles.

[0006] The anchor pile is equipped with a fixed pulley at the top and a winch on the side. The fixed pulleys and winches of the two anchor piles are symmetrically arranged. The fixed pulleys and winches of the two anchor piles are connected to steel cables for the installation of the float-type oil boom across the river.

[0007] The two ends of the float-type oil containment boom are respectively connected and fixed to the sliders of two anchor piles.

[0008] More preferably, the vertical chute is lined with a stainless steel inner plate, the slider is made of stainless steel, and the vertical chute has a T-shaped cross-section. Stainless steel has good corrosion resistance and durability in outdoor environments, allowing the I-shaped slider to remain as a stable anchor point within the T-shaped vertical chute, and enabling it to slide up and down to adjust the height of the float-type oil boom.

[0009] Preferably, the pin holes on the anchor pile are symmetrically and evenly arranged vertically on both sides of the vertical groove. The vertical height difference between adjacent pin holes is 5cm. The height at which the slider is fixed in the vertical groove of the anchor pile can be adjusted according to the seasonal changes in the river water level, and the height of the float-type oil boom can be adjusted so that the float-type oil boom is kept on the water surface to achieve the best oil spill interception effect.

[0010] Preferably, the float-type oil boom is equipped with a lifting ring for pulling across the river. The steel cable can be fixed to the lifting ring on the float-type oil boom through a steel rope clamp, and pulled from the anchor pile on one side of the river to the other side of the river, so as to realize the rapid deployment of the float-type oil boom.

[0011] Preferably, the anchor pile has a rectangular cross-section, with an underground embedment depth of not less than 3m and a ground cantilever length of not less than 3m. The underground embedment depth of not less than 3m ensures that it has sufficient structural and anchoring strength, which can ensure that the float-type oil boom remains stable under the impact load of water flow. The ground cantilever length of not less than 3m can be used to adjust the erection height of the float-type oil boom to adapt to changes in river water level.

[0012] This invention also discloses an oil spill interception method for a lifting-type river oil spill interception device. The specific steps of the oil spill interception method are as follows.

[0013] A. Pipeline and River Parameter Acquisition: Survey and collect parameters such as the diameter of oil pipelines crossing rivers, pipeline transport speed, leakage detection alarm time of pipeline leakage detection system, time required for pipeline valve chamber valves to fully open and close, the maximum water flow velocity of the river over the years, the width of the downstream river channel, and the geological conditions of the downstream riverbank.

[0014] B. Site Selection and Calculation for Interception Devices: Based on the collected parameters, site selection and calculations are performed considering the location of the upstream oil pipeline crossing the river, the leak detection alarm time, the time required for valves in the valve chamber to fully open and close, the maximum annual water flow velocity in the river, the time required for emergency personnel to arrive, and the time required for device installation. Details are as follows:

[0015] The minimum distance D between the location of the interception device and the upstream oil pipeline crossing the river is set.

[0016] D=(T Y +T G +T R +T J )*V

[0017] In the formula, T Y T represents the pipeline leak detection and alarm time, measured in seconds (s). G The time required for a valve in a pipeline valve chamber to fully open and fully close, in seconds (s); T R T represents the arrival time of personnel in the emergency response within this watershed, in seconds (s). J The time for setting up the interception device is in seconds (s); V is the maximum annual water flow velocity in the river channel, in meters per second (m / s).

[0018] C. Setting up an interception device: Anchor piles are installed on both sides of the downstream riverbank at a minimum distance D from the location where the upstream oil pipeline crosses the river. The anchor piles are made of reinforced concrete, and are constructed by mechanical or manual drilling and on-site casting. The anchor piles have a rectangular cross-section with dimensions of not less than 0.8m × 0.8m, wherein the depth of the embedded section below ground is not less than 3m, and the length of the cantilever section above ground is not less than 3m. The stainless steel lining plate inside the vertical chute is pre-embedded and connected to the anchor pile body. A winch and a fixed pulley are installed on the anchor pile. The float-type oil boom, slider, steel cable, and auxiliary equipment such as steel rope clamps and traction ropes can be stored nearby.

[0019] D. Using interception devices to handle oil spill accidents: When an oil spill occurs, emergency rescue personnel arrive at the pre-designated anchor pile site. The first step is to set the slider position based on the real-time water level and fix it in place by inserting pins into the pin holes on the anchor pile body. The second step is to use a traction rope spanning the river to pull a steel cable from one side of the river to the other. By rotating a winch, the steel cable is suspended in the river and passed through a fixed pulley to connect with the winch. The third step is to detach the steel cable from the traction rope and retrieve the traction rope. The fourth step... The lifting rings on the float-type oil boom are fixed to the steel cable with steel rope clamps. The winch on the anchor pile on the other side of the river channel pulls the float-type oil boom across the river through the steel cable until the float-type oil boom is completely suspended on the steel cable crossing the river channel. The fifth step is to fix both ends of the float-type oil boom to the sliders on the anchor piles on both sides of the river channel to prevent it from slipping. Each vertical groove is equipped with two sliders to fix the upper and lower ends of the float-type oil boom respectively. After the float-type oil boom is deployed and placed on the river surface, the oil spill is intercepted. The intercepted oil spill is collected and disposed of centrally.

[0020] E. Oil boom recovery: After the oil spill accident is dealt with, the float-type oil boom is recovered. First, loosen both ends of the float-type oil boom to separate it from the slider. Second, rotate the winch to pull and disassemble the float-type oil boom. Finally, remove the steel cable and slider and store them nearby.

[0021] Furthermore, in step D, during the oil spill response, the height of the float-type oil boom can be adjusted to adapt to the water level by adjusting the height of the lifting slider according to the dynamic changes in the river water level, thereby achieving the best oil spill interception effect.

[0022] Furthermore, in step C, the width of the river channel at the location of the anchor pile is no more than 50m, and the maximum annual water flow velocity of the river channel does not exceed 1.5m / s. This ensures that the float-type oil boom has a good interception effect, and that excessive flow velocity can easily form turbulence, making it easy for the spilled oil to escape from the bottom of the oil boom. The river channel at the location also meets the geological conditions of riverbed stability, ensuring the anchoring strength of the anchor pile, so that the float-type oil boom has a sufficiently reliable water flow impact resistance.

[0023] Furthermore, in step C, the specific method for constructing the anchor pile is as follows: manually excavating or mechanically rotary excavating to form a hole → hoisting and placing the reinforcing cage → supporting the cantilever section with formwork → pouring C30 concrete → curing → acceptance and completion, ensuring that the anchor pile has high anchoring strength.

[0024] The beneficial effects of this invention are as follows: This invention collects parameters of oil pipelines crossing or spanning rivers. Based on the collected parameters, it calculates the location of the upstream oil pipeline crossing the river, the leak detection alarm time, the time required for valves in the valve chamber to fully open and close, the maximum annual water flow velocity of the river, the time for emergency personnel to arrive, and the time for equipment installation. A scientific calculation model and calculation method are established; the optimal oil spill interception point is selected; in the event of a sudden oil spill accident in a river, it can achieve the fastest and most effective response and disposal at the optimal time, effectively preventing further spread of oil spill pollution areas and greatly reducing the cost of oil spill accident disposal, thus achieving the goal of rapid risk prevention and control and protecting the downstream ecological environment.

[0025] The device of this invention uses pre-installed anchor piles on both sides of the proposed flood control channel. The anchor piles are equipped with fixed pulleys on the upper part and winches on the side. In the event of an oil spill, rescue personnel can quickly pull the float-type oil boom across the river via steel cables. This allows for the rapid anchoring and deployment of the liftable float-type oil boom, enabling timely interception of the oil spill and achieving the goals of risk prevention and control and protection of the downstream ecological environment.

[0026] The I-shaped slider can slide up and down within the T-shaped vertical groove, maintaining a stable and secure anchor point for the float-type oil boom and allowing for quick adjustment of the boom's erection height.

[0027] The pin holes on the anchor pile are symmetrically arranged vertically on both sides of the vertical groove opening. The pin holes at different vertical heights can be adjusted according to the seasonal changes in the river water level to fix the slider at the installation height of the anchor pile, so that the float-type oil boom can be stably anchored on the water surface to achieve the best oil spill interception effect.

[0028] The device of this invention has a simple structure, can be installed and deployed quickly, requires no external power supply, and has controllable manufacturing and operating costs. It greatly improves the response speed to sudden oil spill accidents, makes the risk area controllable, and effectively protects the ecological environment safety of the surrounding areas of the watershed through which the oil pipeline passes. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the anchor pile structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the vertical sliding groove and slider structure on the anchor pile of the present invention;

[0032] Figure 4 This is a schematic diagram illustrating an embodiment of the present invention.

[0033] Components and their numbers shown in the picture:

[0034] 1-Float-type oil boom; 2-Anchor pile; 3-Vertical chute; 4-Sliding block; 41-Pin; 6-Fixed pulley; 7-Windlock; 8-Steel cable; 11-Lifting ring. Detailed Implementation

[0035] The following embodiments illustrate a lifting-type river oil spill interception device and oil spill interception method according to the present invention. Figures 1-4 As shown, anchor piles 2 are pre-installed on both sides of the proposed flood control channel. In the event of an oil spill, rescue personnel can quickly pull the float-type oil boom 1 across the river via steel cable 8 to complete the deployment and construction of the liftable float-type oil boom 1, thereby intercepting the oil spill in a timely manner and achieving the purpose of risk prevention and control and protecting the downstream ecological environment.

[0036] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "front", "end", "side", "vertical", "lateral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not mean that the components must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention. Example 1

[0037] like Figures 1-3 As shown, a lifting-type river oil spill containment device includes a float-type oil boom 1 and two anchor piles 2 set on both sides of the river to be protected. The anchor piles 2 are provided with a vertical groove 3 with a T-shaped cross-section. Two sliding blocks 4 are provided in the vertical groove 3, which can slide up and down. Two horizontal pins 41 are symmetrically provided on the sliding blocks 4 with an I-shaped cross-section. The anchor piles 2 on both sides of the vertical groove 3 have pin holes for inserting and fixing the pins 41. The sliding blocks 4 can be installed and fixed by inserting the pins 41 into the pin holes on the anchor piles 2.

[0038] The anchor pile 2 is provided with a fixed pulley 6 at the top and a winch 7 on the side. The fixed pulleys 6 and winches 7 of the two anchor piles 2 are symmetrically arranged. The fixed pulleys 6 and winches 7 of the two anchor piles 2 are connected to a steel cable 8 for pulling the float-type oil boom 1 across the river for installation.

[0039] The two ends of the float-type oil containment boom 1 are respectively connected and fixed to the sliders 4 of the two anchor piles 2.

[0040] In this embodiment, the vertical chute 3 is lined with a stainless steel inner plate, and the slider 4 is made of stainless steel. The vertical chute 3 has a T-shaped cross-section. Stainless steel has good corrosion resistance and durability in outdoor environments. It can keep the I-shaped slider 4 as a stable anchor point within the T-shaped vertical chute 3, and can slide up and down to adjust the erection height of the float-type oil boom 1.

[0041] Preferably, the pin holes on the anchor pile 2 are symmetrically and evenly arranged vertically on both sides of the vertical groove 3. The vertical height difference between adjacent pin holes is 5cm. The height of the slider 4 installed in the vertical groove 3 of the anchor pile 2 can be adjusted according to the seasonal changes in the river water level, and the height of the float-type oil boom 1 can be adjusted so that the float-type oil boom 1 is kept on the water surface to achieve the best oil spill interception effect.

[0042] The floating oil boom 1 is equipped with a lifting ring 11 for pulling across the river. The steel cable 8 can be fixed to the lifting ring 11 on the floating oil boom 1 through a steel rope clamp and pulled from the anchor pile 2 on one side of the river to the other side of the river, so as to realize the rapid deployment of the floating oil boom 1.

[0043] The anchor pile 2 has a rectangular cross section with an underground embedded section depth of not less than 3m and a ground cantilever section length of not less than 3m. The underground embedded section depth of not less than 3m ensures that it has sufficient structural strength and anchoring strength, which can ensure that the float-type oil boom 1 remains stable under the impact load of water flow. The ground cantilever section length of not less than 3m can be used to adjust the erection height of the float-type oil boom 1 to adapt to changes in river water level.

[0044] Implementation process, such as Figures 1-4 As shown, the implementation process of setting up an oil spill interception device in the downstream channel of the oil pipeline crossing the Maliu River in Sichuan is as follows:

[0045] A. Pipeline and River Parameter Acquisition: Surveying and parameter acquisition were conducted on the oil pipeline crossing the Maliu River in Sichuan Province. The Lanzhou-Chengdu crude oil pipeline crossing the Maliu River has a diameter of 610mm and a crude oil transport speed of 1000m / s. 3 The pipeline leakage detection system can alarm and locate leaks exceeding 1.5% of the pipeline's design flow rate. It can issue a correct leak alarm within 120 seconds after a leak occurs. The time required for the valve in the valve chamber to fully open and fully close is 70 seconds. The maximum annual water flow velocity in the river channel is 1.5 m / s. The following parameters were collected from the downstream river channel width and downstream riverbank geological conditions: the maximum width of the Maliu River is 40m, the water level during the non-flood season is 0.2-1.2m, the average flow velocity during the non-flood season is 0.1m / s, the average flow velocity during the flood season is 1.2m / s, and the maximum flow velocity is 1.5m / s. The distance to the Jiange Protection Station is 12km, and the emergency response time for personnel in this basin to arrive at the scene is 25 minutes.

[0046] B. Site Selection and Calculation for Interception Devices: Based on the collected parameters, site selection and calculations are performed considering the location of the upstream oil pipeline crossing the river, the leak detection alarm time, the time required for valves in the valve chamber to fully open and close, the maximum annual water flow velocity in the river, the time required for emergency personnel to arrive, and the time required for device installation. Details are as follows:

[0047] The minimum distance between the location of the interceptor device and the upstream oil pipeline crossing the river is set as D.

[0048] D=(T Y +T G +T R +T J )*V

[0049] In the formula, T Y The alarm time for pipeline leak detection is 120 seconds; T G The time required for a valve in a pipeline valve chamber to fully open and fully close is 70 seconds; T R This represents the time it takes for emergency repair personnel in this watershed to arrive at the scene; parameter value: 1500s. J The setting time for the interception device is 1200s; V is the maximum annual water flow velocity in the river channel, with a value of 1.5m / s.

[0050] Substituting the parameters into the formula, we get: D = (120 + 70 + 1500 + 1200) * 1.5 = 4335m

[0051] The calculation showed that the minimum distance between the interception device and the upstream oil pipeline crossing the river was 4335m. The actual survey showed that at a distance of 4.6km, the river width was no more than 50m, the maximum annual water flow velocity of the river did not exceed 1.5m / s, and the riverbed stability geological conditions were met. Therefore, the calculated site selection location for the interception device was determined to be 4.6km downstream of the oil pipeline crossing the river.

[0052] C. Setting up an interception device: Anchor piles 2 are set up on both sides of the riverbank 4.6km downstream of the location where the upstream oil pipeline crosses the river. The anchor piles 2 are made of reinforced concrete and are formed by mechanical or manual drilling and on-site casting. The anchor piles 2 have a rectangular cross-section with a cross-sectional dimension of not less than 0.8m × 0.8m, of which the depth of the embedded section below the ground is not less than 3m and the length of the cantilever section above the ground is not less than 3m. The stainless steel lining plate in the vertical chute 3 is pre-embedded and connected to the anchor pile 2. A winch 7 and a fixed pulley 6 are set on the anchor pile 2. The float-type oil boom 1, the slider 4, the steel cable 8, and the auxiliary equipment steel rope clamps and traction ropes can be stored nearby.

[0053] D. Handling oil spill accidents using interception devices: When an oil spill occurs, emergency rescue personnel arrive at the pre-designated anchor pile 2. First, based on the real-time water level, the slider 4 is positioned and fixed by inserting pins 41 into the pin holes on the anchor pile 2. Second, a traction rope spanning the river is used to pull the steel cable 8 from one side of the river to the other. The steel cable 8 is suspended in the river by rotating the winch 7 and then passed through the fixed pulley 6 and connected to the winch 7. Third, the steel cable 8 is disconnected from the traction rope, and the traction rope is retrieved. Fourth, the float... The lifting ring 11 on the float-type oil boom 1 is fixed to the steel cable 8 by steel rope clamps. The winch 7 of the anchor pile 2 on the other side of the river channel pulls it across the river through the steel cable 8 until the float-type oil boom 1 is completely suspended on the steel cable 8 that crosses the river channel. The fifth step is to fix both ends of the float-type oil boom 1 to the sliders 4 of the anchor piles 2 on both sides of the river channel to prevent it from sliding. Each vertical chute 3 is equipped with two sliders 4, which fix the upper and lower ends of the float-type oil boom 1 respectively. After the float-type oil boom 1 is deployed on the river surface, it is used to intercept the oil spill. The intercepted oil spill is collected and disposed of in a centralized manner.

[0054] E. Oil boom recovery: After the oil spill accident is dealt with, the float-type oil boom 1 is recovered. First, loosen both ends of the float-type oil boom 1 to separate the float-type oil boom 1 from the slider 4. Second, rotate the winch 7 to pull and disassemble the float-type oil boom 1 at the same time. Finally, remove the steel cable 8 and slider 4 and store them nearby.

[0055] In step D, during the handling of an oil spill, the height of the float-type oil boom 1 can be adjusted to adapt to the water level by adjusting the height of the lifting slider 4 according to the dynamic changes in the river water level, so as to achieve the best oil spill interception effect.

[0056] In step C, the specific method for constructing the anchor pile 2 is as follows: manually excavating or mechanically rotary excavating to form a hole → hoisting and placing the reinforcing cage → supporting the cantilever section with formwork → pouring C30 concrete → curing → acceptance and completion, ensuring that the anchor pile 2 has high anchoring strength. Example 2

[0057] Implementation process, such as Figures 1-4 As shown, the implementation process of setting up an oil spill interception device in Tangjiahe, Sichuan, still using the interception device of Example 1, is as follows:

[0058] A. Pipeline and River Parameter Acquisition: Survey and parameter acquisition were conducted for the oil pipeline crossing the Tangjiahe River. The Lanzhou-Chengdu crude oil pipeline crossing the Tangjiahe River has a diameter of 610mm and a crude oil transport speed of 1000m / s. 3The pipeline leakage detection system can alarm and locate leaks exceeding 1.5% of the pipeline's design flow rate. It can issue a correct leak alarm within 120 seconds after a leak occurs. The time required for the valve in the valve chamber to fully open and fully close is 70 seconds. The maximum annual water flow velocity in the river channel is 1.4 m / s. The following parameters were collected from the downstream river channel width and downstream bank geological conditions: Tangjia River maximum width 30m, water level 0.3-1.0m during non-flood season, average flow velocity 0.1m / s during non-flood season, average flow velocity 0.5m / s and maximum flow velocity 1.4m / s during flood season, distance from Jiange Protection Station 30km, emergency response time for personnel in this basin to arrive at the scene 30min.

[0059] B. Site Selection and Calculation for Interception Devices: Based on the collected parameters, site selection and calculations are performed considering the location of the upstream oil pipeline crossing the river, the leak detection alarm time, the time required for valves in the valve chamber to fully open and close, the maximum annual water flow velocity in the river, the time required for emergency personnel to arrive, and the time required for device installation. Details are as follows:

[0060] The minimum distance from the location of the interception device to the upstream oil pipeline crossing the river is set as D.

[0061] D=(T Y +T G +T R +T J )*V

[0062] In the formula, T Y The alarm time for pipeline leak detection is 120 seconds; T G The time required for a valve in a pipeline valve chamber to fully open and fully close is 70 seconds; T R This represents the time it takes for emergency repair personnel in this watershed to arrive at the scene; the parameter value is 1800s. J The device was installed in 1200 seconds; V represents the maximum annual flow velocity of the river, with a value of 1.4 m / s.

[0063] Substituting the parameters into the formula, we calculate: D = (120 + 70 + 1800 + 1200) * 1.4 = 4466m

[0064] The calculation showed that the minimum distance between the interception device and the upstream oil pipeline crossing the river was 4466m. The actual survey showed that at a distance of 5.2km, the river width was no more than 50m, the maximum annual water flow velocity of the river did not exceed 1.4m / s, and the riverbed stability geological conditions were met. Therefore, the calculated site selection location for the interception device was determined to be 5.2km downstream of the oil pipeline crossing the river.

[0065] C. Setting up an interception device: Anchor piles 2 are set up on both sides of the riverbank 5.2km downstream of the location where the upstream oil pipeline crosses the river. The anchor piles 2 are made of reinforced concrete and are formed by mechanical or manual drilling and on-site casting. The anchor piles 2 have a rectangular cross-section with a cross-sectional dimension of not less than 0.8m × 0.8m, of which the depth of the embedded section below the ground is not less than 3m and the length of the cantilever section above the ground is not less than 3m. The stainless steel lining plate in the vertical chute 3 is pre-embedded and connected to the anchor pile 2. A winch 7 and a fixed pulley 6 are set on the anchor pile 2. The float-type oil boom 1, the slider 4, the steel cable 8, and the auxiliary equipment steel rope clamps and traction ropes can be stored nearby.

[0066] D. Using an interception device to handle oil spill accidents: When an oil spill accident occurs, emergency rescue personnel arrive at the pre-designated anchor pile 2 site. First, based on the real-time water level, the slider 4 is positioned and fixed by inserting pins 41 into the pin holes on the anchor pile 2. Second, a traction rope spanning the river is used to pull the steel cable 8 from one side of the river to the other. The steel cable 8 is suspended on the river by rotating the winch 7, and then passed through the fixed pulley 6 and connected to the winch 7. Third, the steel cable 8 is disconnected from the traction rope, and the traction rope is retrieved. Fourth, the float... The lifting ring 11 on the float-type oil boom 1 is fixed to the steel cable 8 by steel rope clamps. The winch 7 of the anchor pile 2 on the other side of the river channel pulls it across the river through the steel cable 8 until the float-type oil boom 1 is completely suspended on the steel cable 8 that crosses the river channel. The fifth step is to fix both ends of the float-type oil boom 1 to the sliders 4 of the anchor piles 2 on both sides of the river channel to prevent it from sliding. Each vertical chute 3 is equipped with two sliders 4, which fix the upper and lower ends of the float-type oil boom 1 respectively. After the float-type oil boom 1 is deployed on the river surface, it is used to intercept the oil spill. The intercepted oil spill is collected and disposed of in a centralized manner.

[0067] E. Oil boom recovery: After the oil spill accident is dealt with, the float-type oil boom 1 is recovered. First, loosen both ends of the float-type oil boom 1 to separate the float-type oil boom 1 from the slider 4. Second, rotate the winch 7 to pull and disassemble the float-type oil boom 1 at the same time. Finally, remove the steel cable 8 and slider 4 and store them nearby.

[0068] In step D, during the handling of an oil spill, the height of the float-type oil boom 1 can be adjusted to adapt to the water level by adjusting the height of the lifting slider 4 according to the dynamic changes in the river water level, so as to achieve the best oil spill interception effect.

[0069] In step C, the specific method for constructing the anchor pile 2 is as follows: manual excavation or mechanical rotary excavation to form the hole → placement of the reinforcing cage → cantilever section formwork support → pouring C30 concrete → curing → acceptance completion. This ensures that the anchor pile 2 has high anchoring strength.

[0070] This invention involves collecting pipeline and river parameters for oil pipelines crossing or spanning rivers. Based on these parameters, a scientific calculation model and method are established for site selection calculations, including the location of the upstream oil pipeline crossing the river, the leak detection alarm time, the time required for valves in the valve chamber to fully open and close, the river's historical maximum water flow velocity, the time for emergency personnel to arrive, and the time for device installation. This allows for the selection of the optimal oil spill interception point and the installation of interception devices. In the event of a sudden oil spill from a pipeline in a river, the interception device can effectively and promptly intercept the oil before it spreads further, achieving a rapid and effective response and mitigating the further spread of oil pollution. This significantly reduces the cost of handling oil spills and achieves the goals of rapid risk control and protection of the downstream ecological environment.

Claims

1. A method for intercepting oil spills using a lifting-type river oil spill containment device, comprising a float-type oil boom (1), characterized in that, It also includes two anchor piles (2) set on both sides of the proposed flood control channel. The anchor piles (2) are provided with a vertical groove (3) with a T-shaped cross section. The vertical groove (3) is provided with two sliding blocks (4) that can slide up and down. The sliding blocks (4) with an I-shaped cross section are symmetrically provided with two horizontal pins (41). The anchor piles (2) on both sides of the vertical groove (3) are provided with pin holes for the pins (41) to be inserted and fixed. The sliding blocks (4) are installed and fixed by inserting the pins (41) into the pin holes on the anchor piles (2). The anchor pile (2) is provided with a fixed pulley (6) at the top and a winch (7) on the side. The fixed pulley (6) and winch (7) of the two anchor piles (2) are symmetrically arranged. The fixed pulley (6) and winch (7) of the two anchor piles (2) are connected to a steel cable (8) for pulling the float-type oil boom (1) across the river. The float-type oil boom (1) is connected and fixed at both ends to the sliders (4) of two anchor piles (2); The vertical slide (3) is provided with a stainless steel inner lining plate, and the slider (4) is made of stainless steel. The pin holes on the anchor pile (2) are symmetrically and evenly arranged on both sides of the vertical groove (3); The float-type oil boom (1) is equipped with a lifting ring (11) for pulling the float-type oil boom (1) across the river. The anchor pile (2) has a rectangular cross section, with an underground embedded section depth of not less than 3m and a ground cantilever section length of not less than 3m; The specific steps for oil spill containment are as follows: A. Pipeline and River Parameter Acquisition: Survey and collect parameters such as the diameter of oil pipelines crossing rivers, pipeline transport speed, leakage detection alarm time of pipeline leakage detection system, time required for pipeline valve chamber valves to fully open and close, the maximum water flow velocity of the river over the years, the width of the downstream river channel, and the geological conditions of the downstream riverbank. B. Site Selection and Calculation for Interception Devices: Based on the collected parameters, site selection and calculation are performed by considering the location of the upstream oil pipeline crossing the river, the leak detection alarm time, the time required for the valves in the valve chamber to fully open and close, the maximum annual water flow velocity in the river, the time required for emergency personnel to arrive, and the time required to set up the interception device. Details are as follows: The minimum distance D between the location of the interception device and the upstream oil pipeline crossing the river is set. D=(T Y +T G +T R +T J )*V In the formula, T Y T represents the time for pipeline leak detection and alarm, in seconds. G The time required for a valve in a pipeline valve chamber to fully open and fully close, in seconds (T). R The time for emergency personnel to arrive in place, in seconds; T J The time for setting up the interception device is in seconds; V is the maximum annual water flow velocity in the river channel, in m / s. C. Setting up interception devices: Anchor piles (2) are set on both sides of the downstream riverbank at the minimum distance D from the location where the upstream oil pipeline crosses the river. The anchor piles (2) are made of reinforced concrete and are formed by mechanical or manual drilling and on-site casting. The anchor piles (2) have a rectangular cross section. The stainless steel inner lining plate in the vertical chute (3) is pre-embedded and connected to the anchor pile (2) body. A winch (7) and a fixed pulley (6) are set on the anchor piles (2). The float-type oil boom (1), slider (4), steel cable (8), auxiliary equipment steel rope clamp, and traction rope are stored nearby. D. Using interception devices to handle oil spill accidents: When an oil spill accident occurs, emergency rescue personnel arrive at the site of the pre-set anchor pile (2). The first step is to set the position of the slider (4) according to the real-time water level and fix it by inserting the pin (41) into the pin hole on the anchor pile (2). The second step is to use the traction rope that crosses the river to pull the steel cable (8) from one side of the river to the other side. By rotating the winch (7), the steel cable (8) is pulled and suspended on the river, and the steel cable (8) is passed through the fixed pulley (6) and connected to the winch (7). The third step is to separate the steel cable (8) from the traction rope and retrieve the traction rope. The fourth step is to deploy the float-type oil boom. (1) The lifting ring (11) on the float is fixed to the steel cable (8) by the steel rope clamp. The winch (7) of the anchor pile (2) on the other side of the river channel is pulled across the river by the steel cable (8) until the float-type oil boom (1) is completely suspended on the steel cable (8) that crosses the river channel. The fifth step is to fix the lifting ring (11) on both sides of the float-type oil boom (1) to the slider (4) of the anchor pile (2) on both sides respectively. Each vertical chute (3) is equipped with two sliders (4) to fix the upper and lower ends of the float-type oil boom (1) respectively. After the float-type oil boom (1) is deployed and placed on the river surface, the oil spill is intercepted. The intercepted oil spill is collected and disposed of in a centralized manner. E. Oil boom recovery: After the oil spill accident is dealt with, the float-type oil boom (1) is recovered. First, loosen both ends of the float-type oil boom (1) to separate the float-type oil boom (1) from the slider (4); second, rotate the winch (7) to pull and disassemble at the same time to complete the disassembly and recovery of the float-type oil boom (1). Finally, remove the steel cable (8) and slider (4) and store them nearby. In step D, during the oil spill incident handling, the height of the float-type oil boom (1) is adjusted to a height suitable for the water level by adjusting the height of the lifting slider (4) according to the dynamic changes in the river water level. In step C, the width of the river channel at the location of the anchor pile (2) is no more than 50m and the maximum annual water flow velocity of the river channel is no more than 1.5m / s.

2. The oil spill interception method of the lifting river oil spill interception device according to claim 1, characterized in that, In step C, the specific method for constructing the anchor pile (2) is as follows: manually excavating or mechanically rotary excavating to form a hole → hoisting and placing the steel cage → cantilever section formwork support → pouring C30 concrete → curing → acceptance.

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