Highway pavement runoff sewage collection pool

Abstract

The invention relates to the technical field of road initial rainwater and accident waste liquid disposal, and discloses an expressway pavement runoff sewage collection pool which comprises water inlet pipes arranged at the road edges of the two sides of an expressway, the inner sides of the water inlet pipes are connected with guide pipes, and the tail ends of the guide pipes are connected with a first-stage pool. The tail end of the bottom surface of the first-stage tank is hermetically connected with a water measuring pipe through a flange, the tail end of the water measuring pipe is connected with a second-stage tank, and the second-stage tank is provided with a water diversion structure. Rainwater enters the first-stage tank and then enters the second-stage tank from the water measuring pipe, and the floating block also floats upwards, so that water in the water nozzle is pressed by air pressure, and once the water nozzle is blocked, the water in the first-stage tank begins to be accumulated and rises until the water level of the first-stage tank reaches the position of the water pipe; the water pipe can guide water downwards into the water outlet pipe, and finally the water is guided into the first collecting pool, so that the beneficial effects that the collecting pool autonomously discriminates whether the rainwater or the hazardous chemical substances enter and correspondingly treats the rainwater or the hazardous chemical substances are achieved.

Description

Technical Field

[0001] This invention relates to the field of road initial rainwater and accident waste liquid treatment technology, specifically a highway pavement runoff sewage collection tank. Background Technology

[0003] To prevent hazardous chemical leaks from flowing into water sources via road runoff, highways in China that traverse water source protection areas and catchment areas of high-quality water bodies are equipped with road runoff collection ponds along their respective sections. Existing technology CN217961406U discloses in section 0028 of its specification that "when this highway road runoff collection and treatment system is in use, under normal circumstances, road runoff is diverted to the initial rainwater collection pond for treatment. If the road transport management agency identifies the GPS information (location and speed) of a hazardous chemical transport vehicle and determines it to be in an accident state, it remotely transmits the signal to the solenoid valve remote controller. The solenoid valve remote controller then controls the overflow solenoid valve and the inlet solenoid valve on the inlet branch pipe of each initial rainwater treatment pond to close, while simultaneously opening the inlet solenoid valve on the inlet branch pipe of the accident wastewater temporary storage pond, diverting the accident waste liquid to the accident wastewater temporary storage pond for temporary storage, thereby separating the accident waste liquid from the initial rainwater for independent treatment." This system can distinguish between rainwater and accident wastewater and treat them accordingly. However, this technical solution relies on road transport management agencies to identify the GPS information of hazardous chemical transport vehicles, namely their location and speed, and determine that an accident has occurred. Only then can it be determined that the liquid is accidental waste, and the corresponding inlet solenoid valve is opened to introduce it into a wastewater storage tank for temporary storage. This involves the problem that leaked hazardous chemicals may flow everywhere with road runoff or fire-fighting wastewater. The aforementioned technical solution can only passively close the solenoid valve based on the judgment of the highway road runoff collection and treatment system. However, before the accident occurs, the hazardous chemical transport vehicle must have been operating continuously in a faulty state for the accident to happen. That is, the hazardous chemical transport vehicle has already started leaking while in a faulty state. Therefore, the aforementioned technical solution can only passively deal with the problem of leaked hazardous chemicals flowing everywhere with road runoff or fire-fighting wastewater after the accident. It cannot collect the hazardous chemicals leaked by the hazardous chemical transport vehicle in a faulty state into the accident wastewater storage tank for temporary storage, nor can it detect the fault of the accident vehicle before the accident occurs. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a highway pavement runoff sewage collection tank, which has the advantages of collecting hazardous chemicals leaked from malfunctioning hazardous chemical transport vehicles before an accident occurs, and the collection tank can autonomously identify whether the incoming water is rainwater or hazardous chemicals and treat them accordingly, thus solving the problems of the aforementioned technologies.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a highway pavement runoff sewage collection tank, comprising an inlet pipe installed along the roadside on both sides of the highway, an inner conduit extending downward and buried in the soil connected to the inner side of the inlet pipe, the tail end of the conduit connecting to the top of the side wall of a primary tank and penetrating its outer wall into its interior, the tail end of the primary tank being sealed with a water pipe symmetrical to the tail end of the conduit via a flange, the water pipe extending downward and merging into an outlet pipe, the tail end of the outlet pipe connecting to a first collection tank, the bottom end of the primary tank being sealed with a water measuring pipe via a flange, the tail end of the water measuring pipe connecting to the top of the side wall of a secondary tank and penetrating its interior, the secondary tank being provided with a water distribution structure; The water separation structure includes: a horizontal bar located above the opening of the secondary pool, a through hole in the middle of the horizontal bar, an electrode inserted into the inside of the through hole, an electrode wire connected to a detector, a vertical bar connected to the bottom of the horizontal bar, the vertical bar extending downward to the lower inside of the secondary pool, and a float slidably connected to the surface of the vertical bar, the top surface of the float having a notch for aligning the bottom of the electrode; It also includes a water nozzle, which is horizontally arranged inside the secondary pool. The water nozzle is a cone shape with openings at the front and back and is hollow. The water nozzle is smaller at the front and larger at the back, and its rear end is sealed and connected to the opening of the water measuring pipe located inside the secondary pool.

[0006] Preferably, the top surface of the crossbar and the two ends of the through hole are also provided with locking components. The locking components include locking blocks. The locking blocks have a threaded hole that passes through them on the side facing the through hole. The screw is threadedly connected to the screw rod inside the threaded hole. The tail end of the screw rod that passes through the threaded hole is movably connected to an arc-shaped clip. The rear wall of the arc-shaped clip and the screw rod are rotatably connected by a bearing, and the front wall is a concave arc shape that fits the electrode surface.

[0007] Preferably, the float is made of polyurethane foam and its surface is coated with a 0.1 mm epoxy resin or polyurethane coating.

[0008] Preferably, the diameter of the float is three-quarters or two-thirds of the inner diameter of the secondary pool.

[0009] Preferably, the float is further provided with vertical grooves on its side, and the vertical grooves are arranged in an orderly manner around the side wall of the float.

[0010] Preferably, the water nozzle is made of natural rubber, and the tail end of the water nozzle is fixed in a sleeve-like manner at the opening of the water measuring tube located inside the secondary pool. A retaining ring is also fixedly installed at the opening of the water measuring tube located inside the secondary pool. The inner diameter of the retaining ring is equal to the inner diameter of the water measuring tube, and the thickness of the retaining ring is half the thickness of the wall of the water measuring tube. The two form a concave-convex difference for connecting with the rear end of the water nozzle.

[0011] Preferably, the water distribution structure further includes a bucket, which fits into the inner side of the secondary pool and slides down from top to bottom inside the secondary pool to form a stack with it. The top of the bucket has slots on both sides, and the inner sides of the two slots are engaged with the beginning and end of the crossbar. The top of the bucket also has a limiting groove that penetrates its own side wall. The width of the limiting groove is greater than the rear diameter of the water nozzle and restricts the water nozzle within the limiting groove.

[0012] Preferably, the bottom inner surface of the bucket also contacts the bottom of the vertical rod extending downwards, and the float is also located on the bottom inner surface of the bucket.

[0013] Preferably, the water distribution structure further includes a diversion pipe, which is vertically located at the bottom of the secondary tank and its bottom is inserted into the tank. The bottom of the diversion pipe is connected to the main hazardous chemical pipe, and the top of the main hazardous chemical pipe is sequentially connected to the diversion pipes installed in the secondary tanks at intervals, and its tail end is connected to the No. 2 collection tank.

[0014] Preferably, the drainage pipe is also equipped with a solenoid valve, which is located at the top of the drainage pipe near the lower part of the secondary pool.

[0015] Compared with the prior art, the present invention provides a highway pavement runoff sewage collection tank, which has the following beneficial effects: 1. In this invention, when hazardous chemicals leak from a continuously operating hazardous chemical transport vehicle during a road malfunction and spill onto the highway surface, the liquid hazardous chemicals will converge to form road runoff and flow towards the lower level, i.e., the water inlet pipe in this embodiment. The hazardous chemicals entering the water inlet pipe eventually reach the secondary tank through the water nozzle. The liquid hazardous chemicals flowing out of the water nozzle flow into the bucket. As the water level inside the bucket rises, the float in the bucket inside the secondary tank continuously rises. Under the constraint of two vertical rods, it can only rise vertically and will not deviate. As the float continues to rise, it will contact the water nozzle. Part of the liquid hazardous chemicals sprayed from the water nozzle is trapped in the notch. Then the float continues to move upward and blocks the water nozzle. After the corresponding electrode contacts the notch, the detector can start detection. The detector in this application can be either the OHR-PH10 model water quality detector or the OHR-MT10 model air quality detector. Because air circulation is slow inside the secondary tank, if hazardous chemicals enter the secondary tank but the water volume is less than half the tank's height, the water quality detector will not trigger. Since hazardous chemicals are volatile, a change in oxygen content in the secondary tank indicates a leak. The evaporation of hazardous chemicals in the secondary tank leads to a decrease in oxygen content, thus the detection results are directly divided into two categories: ordinary rainfall and hazardous chemical leaks. When the result is a decrease in oxygen content or substandard water quality, the detector will immediately issue an alarm, requiring highway staff to manually clean the hazardous chemicals inside the secondary tank. Because the hazardous chemical transport vehicle is continuously operating, a single leak will not result in excessive amounts of hazardous chemicals, thus the total amount is limited and will not fill the secondary tank. This achieves the beneficial effect of collecting leaked hazardous chemicals from malfunctioning hazardous chemical transport vehicles before an accident occurs.

[0016] 2. In this invention, rainwater entering the primary pool will also enter the secondary pool through the water measuring pipe. Similarly, the float will also rise, thus the water inside the water nozzle will be suppressed by air pressure. At the same time, once the water nozzle is blocked, the water in the primary pool will begin to accumulate and rise until the water level in the primary pool reaches the water pipe position. The water pipe will then guide the water downward to the outlet pipe and finally into the No. 1 collection pool. This achieves the beneficial effect of the collection pool autonomously identifying whether the incoming water is rainwater or hazardous chemicals and treating them accordingly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the overall structure of the secondary pool in Embodiment 1 of the present invention; Figure 3 This is a front sectional view of the secondary pool structure according to Embodiment 1 of the present invention; Figure 4 This is an exploded view of the crossbar structure according to Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention; Figure 6 This is a schematic diagram of the secondary pool structure according to Embodiment 2 of the present invention; Figure 7 This is a schematic cross-sectional view of the secondary pool structure according to Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the retaining ring structure of the present invention.

[0018] The components include: 1. Inlet pipe; 2. Guide pipe; 3. Primary tank; 4. Water pipe; 401. Outlet pipe; 5. Measuring pipe; 501. Clamping ring; 6. Secondary tank; 7. Horizontal bar; 701. Through hole; 7011. Vertical bar; 702. Electrode; 703. Clamping block; 705. Screw; 706. Arc-shaped clamp; 8. Water nozzle; 801. Float; 802. Notch; 803. Vertical groove; 9. Lifting bucket; 901. Clamping opening; 902. Limiting groove; 10. Drainage pipe; 11. Hazardous materials main pipe; 12. Solenoid valve. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-8 A highway pavement runoff sewage collection tank includes an inlet pipe 1 installed at the roadside on both sides of the highway. The inner side of the inlet pipe 1 is connected to a conduit 2 that extends downward and is buried in the soil. The tail end of the conduit 2 is connected to the top of the side wall of a primary tank 3 and penetrates its outer wall into its interior. The side wall of the tail end of the primary tank 3 is sealed with a water pipe 4 that is symmetrical to the tail end of the conduit 2 through a flange. The water pipe 4 extends downward and merges into an outlet pipe 401. The tail end of the outlet pipe 401 is connected to a first collection tank. The tail end of the bottom surface of the primary tank 3 is sealed with a water measuring pipe 5 through a flange. The tail end of the water measuring pipe 5 is connected to the top of the side wall of a secondary tank 6 and penetrates its interior. The secondary tank 6 is equipped with a water distribution structure. The water distribution structure includes: a horizontal bar 7, which is located above the opening of the secondary pool 6. A through hole 701 is opened in the middle of the horizontal bar 7. An electrode 702 is inserted into the inside of the through hole 701. The electrode 702 is wired to a water quality tester. A vertical bar 7011 is connected to the bottom of the horizontal bar 7. The vertical bar 7011 extends downward to the lower inside of the secondary pool 6. A float 801 is also slidably connected to the surface of the vertical bar 7011. A notch 802 for aligning the bottom of the electrode 702 is opened on the top surface of the float 801. It also includes a water nozzle 8, which is horizontally arranged inside the secondary pool 6. The water nozzle 8 is a cone shape with openings at the front and back and is hollow. The water nozzle 8 is smaller at the front and larger at the back, and its rear end is sealed and connected to the opening of the water measuring pipe 5 located inside the secondary pool 6.

[0021] The water nozzle 8 is designed as a cone shape with a smaller front and a larger back. This narrows the inner diameter of the water measuring pipe 5, causing the water flowing from the water measuring pipe 5 to contract inside the water nozzle 8 before flowing out from the opening at the front of the water nozzle 8. This completes the pressurization operation. The pressurized water forms a jet stream and flows directly out from the opening of the water nozzle 8 instead of overflowing. This prevents the water from the water measuring pipe 5 from coming into contact with the inner wall of the secondary pool 6 and the connection between the water measuring pipe 5 and the connection, thus preventing the hazardous chemicals in the water from corroding that area and causing leakage, which would prevent the water from flowing normally into the secondary pool 6.

[0022] Furthermore, a locking element is provided on the top surface of the crossbar 7 at both ends of the through hole 701. The locking element includes a locking block 703. The locking block 703 has a threaded hole on the side facing the through hole 701. The screw 705 is threadedly connected to the inner side of the threaded hole. The tail end of the screw 705 passing through the threaded hole is movably connected to the arc-shaped clip 706. The rear wall of the arc-shaped clip 706 is rotatably connected to the screw 705 through a bearing, and the front wall is a concave arc shape that fits the surface of the electrode 702.

[0023] Electrode 702 passes through the through hole 701 in the center of crossbar 7, and then the end of screw 705 is grasped and rotated, as per the instruction manual. Figure 4 As shown, there are two screws 705, so both ends need to rotate simultaneously. Then, the screws 705 move relative to the screw holes and move towards the electrode 702. When the screws 705 move, they drive the arc-shaped clip 706 to move as well. Since the connection between the two is relative to each other, the rotation of the screws 705 will not affect the arc-shaped clip 706 and cause it to rotate as well. As the arc-shaped clip 706 continues to move forward, it will lock the middle end of the electrode 702. At this time, the detection end of the electrode 702 is in the middle of the inner side of the secondary cell 6, and the electrode 702 is limited to the middle of the crossbar 7. After the electrode 702 is fixed, the crossbar 7 and the electrode 702 are integrated. The crossbar 7 is limited above the secondary cell 6, and the initial assembly work is completed. Since the secondary cell 6 is buried underground, a cement shaft needs to be poured above the secondary cell 6 to connect to the ground. When installing, pliers are needed to clamp the crossbar 7 and lower it into the secondary cell 6 from the shaft.

[0024] Furthermore, the detector connected to electrode 702 via wire is a water quality detector, which is existing equipment. In this application, the water quality detector is an OHR-PH10 model water quality detector. Similarly, the electrode 702 in this application is also the electrode 702 that comes with this model of detector. Water is introduced into the secondary pool 6 through the water nozzle 8. The water quality detector directly detects whether the water quality meets the standards. Therefore, it is not necessary to distinguish what kind of chemical leak it is. As long as the water quality entering the secondary pool 6 does not meet the standards, it must be a chemical leak. If the water quality meets the standards, it is rainfall. If it is rainfall, the water can be introduced into the first collection pool.

[0025] Furthermore, the detector in this application can also be an oxygen concentration detector, specifically model OHR-MT10. This device is also an existing device, and electrode 702 is integrated into the OHR-MT10 air detector. Since the air circulation inside the secondary tank 6 is slow, if hazardous chemicals enter the secondary tank 6 but the water volume is insufficient to reach half the height of the secondary tank 6, the water quality detector will not be triggered. Hazardous chemicals are volatile, and once a change in the oxygen content of the secondary tank 6 is detected, it must be a hazardous chemical leak, and the volatilization of hazardous chemicals in the secondary tank 6 leads to a decrease in oxygen content.

[0026] Furthermore, the float 801 is made of polyurethane foam and its surface is coated with a 0.1 mm epoxy resin or polyurethane coating.

[0027] The buoyancy of polyurethane foam enables float 801 to float stably when water is injected into the secondary tank 6. At the same time, the epoxy resin or polyurethane coating on the surface of float 801 is resistant to acid and alkali corrosion. Even if water from a hazardous chemical leak flows directly onto the surface of float 801, it will not cause corrosion, ensuring the durability of float 801.

[0028] Furthermore, the diameter of float 801 is three-quarters or two-thirds of the inner diameter of the secondary pool 6.

[0029] The diameter of the float 801 is smaller than that of the secondary pool 6. When the water flowing out from the spout 8 does not accumulate inside the secondary pool 6, the float 801 will not get stuck inside the secondary pool 6 due to its large diameter and be unable to float.

[0030] Furthermore, vertical grooves 803 are also provided on the side of the float 801, and the vertical grooves 803 are arranged around the side wall of the float 801 at intervals.

[0031] Multiple vertical grooves 803 create an uneven surface on the side of the float 801, further reducing its area. Combined with two vertical rods 7011 penetrating the float 801, this ensures that the float 801 can only rise vertically as the water level rises in the secondary tank 6, preventing it from shifting. As the float 801 continues to rise, it will contact the water nozzle 8. Part of the water sprayed from the nozzle 8 is trapped in the notch 802. Then, as the float 801 continues to move upward, the continuous water spray from the nozzle 8 will cause the float to move further upward. The upward movement of float 801 eventually brings its notch 802 into contact with the detection end of electrode 702. The rising float 801 then directly contacts the water nozzle 8. The water nozzle 8, made of natural rubber, is flexible and deforms upwards after being lifted by float 801. At this point, the water nozzle 8, measuring pipe 5, and secondary tank 6 form a U-shaped pipe. Because the height of the water nozzle 8 increases and the measuring pipe 5 lacks a pump for pressurization, the water inside the water nozzle 8 is held back by air pressure, temporarily slowing its flow. Once the electrode 702 contacts the notch 802, the detector can begin detection. The detector in this application can be either an OHR-PH10 water quality detector or an OHR-MT10 air quality detector. The detector checks whether the water quality meets the standards. Since it only measures water quality or air oxygen content, the detection results are directly divided into two categories: ordinary rainfall and hazardous chemical leakage. This achieves the purpose of collecting hazardous chemicals leaked from a continuously operating hazardous chemical transport vehicle in a faulty state. Because it is a continuously operating hazardous chemical transport vehicle, its individual location will not leak too much hazardous chemicals, so the total amount is limited and will not fill the secondary pool 6. Therefore, the collection and treatment of hazardous chemicals can be completed by cleaning the secondary pool separately afterward. Specifically, cleaning the secondary pool 6 only requires lifting the crossbar 7 out of the shaft, and then inserting the suction end of the hazardous chemical suction pump into the secondary pool 6 for suction. Since this technical solution has not been improved in this application, and the existing technology is already very mature, it will not be described in detail.

[0032] Furthermore, the water nozzle 8 is made of natural rubber, and the tail end of the water nozzle 8 is fixed in a sleeve-like manner at the opening of the water measuring pipe 5 located inside the secondary pool 6. A retaining ring 501 is also fixedly installed at the opening of the water measuring pipe 5 located inside the secondary pool 6. The inner diameter of the retaining ring 501 is equal to the inner diameter of the water measuring pipe 5, and the thickness of the retaining ring 501 is half the wall thickness of the water measuring pipe 5. The two form a concave-convex difference for connecting with the rear end of the water nozzle 8.

[0033] Furthermore, the water distribution structure also includes a bucket 9, which fits into the inner side of the secondary pool 6. The bucket 9 slides down from top to bottom inside the secondary pool 6 and stacks with it. The top of the bucket 9 has slots 901 on both sides, and the two slots 901 are engaged with the beginning and end of the crossbar 7. The top of the bucket 9 also has a limiting groove 902 that penetrates its own side wall. The width of the limiting groove 902 is greater than the rear diameter of the water nozzle 8, and the water nozzle 8 is restricted to the limiting groove 902.

[0034] The bucket 9 is separately installed inside the secondary tank 6. Before actual use, the two ends of the crossbar 7 are first snapped into the slot 901, so that the crossbar 7 and the corresponding electrode 702 are integrated with the bucket 9. Then, the bucket 9 is placed inside the secondary tank 6. It is worth noting that the limiting groove 902 needs to be aligned with the water nozzle 8 when it is lowered. Since the water nozzle 8 is made of natural rubber and is flexible, when the bucket 9 is actually stacked, the water nozzle 8 will be pressed against the inner wall of the secondary tank 6 until it contacts the limiting groove 902. The elasticity of the natural rubber water nozzle 8 will rebound into the limiting groove 902 when there is no pressure from the bucket 9, thus completing the installation preparation work before use.

[0035] Furthermore, the bottom inner surface of the bucket 9 also contacts the bottom of the vertical rod 7011 extending downwards, and the float 801 is also located on the bottom inner surface of the bucket 9.

[0036] Furthermore, the water distribution structure also includes a diversion pipe 10, which is vertically located at the bottom of the secondary tank 6 and its bottom is inserted into the interior of the tank. The bottom of the diversion pipe 10 is connected to the hazardous chemical main pipe 11, and the top of the hazardous chemical main pipe 11 is sequentially connected to multiple diversion pipes 10 installed in the secondary tank 6, and its tail end is connected to the No. 2 collection tank.

[0037] Furthermore, a solenoid valve 12 is also installed on the drainage pipe 10, which is located at the top of the drainage pipe 10 near the secondary pool 6.

[0038] Example 1 In this embodiment, water inlet pipes 1 are laid along the roadside on both sides of the highway, as shown in the attached instruction manual. Figure 1 As shown, the inlet pipe 1 is a semi-circular ditch shape, placed directly in the open. The conduit 2 is placed vertically at the bottom inside the inlet pipe 1. The opening of the conduit 2 can be fitted with a filter screen to filter fallen leaves, stones, and other debris. When a hazardous chemical transport vehicle in a faulty state leaks hazardous chemicals onto the highway surface, the liquid hazardous chemicals will accumulate, forming a runoff that flows towards the lower level, i.e., the inlet pipe 1 in this embodiment. As the liquid hazardous chemicals come into contact with the conduit 2, they then enter the primary tank 3 through the conduit 2, as shown in the attached instruction manual. Figure 3 As shown, a water testing pipe 5 is connected to the bottom of the inner side of the primary tank 3. Under the influence of gravity, liquid hazardous chemicals will enter the lower water testing pipe 5 from the primary tank 3, and then... (The sentence is incomplete and ends abruptly). Figure 3As shown, liquid hazardous chemicals flow from the end of the measuring pipe 5 through the water nozzle 8 into the secondary tank 6. In this embodiment, buckets 9 are stacked inside the secondary tank 6. The liquid hazardous chemicals flowing out of the water nozzle 8 flow into the buckets 9. When the water level inside the buckets 9 rises, the float 801 can only rise vertically under the constraint of the two vertical rods 7011 as the water level in the buckets 9 inside the secondary tank 6 continues to rise, and will not deviate. As the float 801 continues to rise, it will contact the water nozzle 8. Part of the liquid hazardous chemicals sprayed from the water nozzle 8 is trapped in the notch 802. Then the float 801 continues to move upward because the continuous spraying of liquid hazardous chemicals from the water nozzle 8 will cause the float 801 to float. Ultimately, the notch 802 of the float 801 contacts the detection end of the electrode 702. The float 801 rises and eventually directly contacts the water nozzle 8. The water nozzle 8, made of pure natural rubber, is flexible and deforms upwards after being lifted by the float 801. At this point, the water nozzle 8, the measuring pipe 5, and the secondary tank 6 form a "U"-shaped pipe. Due to the increased height of the water nozzle 8 and the absence of a pump in the measuring pipe 5, the liquid hazardous materials inside the water nozzle 8 are held back by air pressure, temporarily slowing their outflow. Once the corresponding electrode 702 contacts the notch 802, the detector can begin detection. The detector in this application can be either an OHR-P... The H10 model water quality detector can also be used with the OHR-MT10 model air quality detector. Because air circulation is slow inside secondary tank 6, if hazardous chemicals enter secondary tank 6 but the water volume is insufficient to reach half the tank's height, the water quality detector will not trigger. Since hazardous chemicals are volatile, a change in oxygen content detected in secondary tank 6 indicates a leak. Furthermore, the evaporation of the hazardous chemicals in secondary tank 6 leads to a decrease in oxygen content. Therefore, the detection results are directly divided into two categories: ordinary rainfall and hazardous chemical leak. In the case of a hazardous chemical leak, the detector will immediately issue an alarm, requiring intervention from highway personnel. The hazardous chemicals inside the secondary tank 6 are manually cleaned, thus achieving the collection of hazardous chemicals leaked from a continuously operating hazardous chemical transport vehicle in a faulty state. Since the hazardous chemical transport vehicle is continuously operating, its individual location will not leak too much hazardous chemicals, and the total amount is limited and will not fill the secondary tank 6. Therefore, the collection and treatment of hazardous chemicals can be completed by cleaning the secondary tank separately afterward. Specifically, cleaning the secondary tank 6 only requires lifting the crossbar 7 out of the vertical shaft, and then inserting the suction end of the hazardous chemical suction pump into the secondary tank 6 to suction. Since this technical solution has not been improved in this application, and the existing technology is already very mature, it will not be described in detail.

[0039] Furthermore, in the event of rainfall, rainwater entering the primary pool 3 will also flow through the measuring pipe 5 into the bucket 9. Similarly, the float 801 will rise. As the float 801 continues to rise, it will contact the water nozzle 8. Part of the water sprayed from the nozzle 8 will be trapped in the notch 802. Then, as the water nozzle 8 continues to spray water, the float 801 will continue to rise, eventually causing the notch 802 of the float 801 to contact the detection end of the electrode 702. Finally, the rising float 801 will directly contact the water nozzle 8, which is made of pure natural rubber and is flexible. When the water nozzle 8 is lifted by the float 801, it deforms and begins to fold upwards. At this time, the water nozzle 8, the measuring pipe 5, and the secondary tank 6 form a "U"-shaped pipe. Because the height of the water nozzle 8 increases and the measuring pipe 5 is not pressurized by a pump, the water inside the water nozzle 8 will be blocked by air pressure, temporarily slowing down the water flow. After the corresponding electrode 702 contacts the notch 802, the detector can start detecting. Since it is ordinary water, the detection result will not trigger an alarm. At the same time, once the water nozzle 8 is blocked, the water in the primary tank 3 will begin to accumulate and rise until the water level in the primary tank 3 reaches the position of the water pipe 4, as shown in the instruction manual. Figure 3 As shown, water pipe 4 will guide water downwards to outlet pipe 401, and finally into collection pool 1. Furthermore, in the event of rainfall, manual intervention is also required in this embodiment to clean the water inside secondary pool 6.

[0040] In use, when a hazardous chemical transport vehicle in a faulty but continuously operating state leaks hazardous chemicals onto the highway surface, the liquid hazardous chemicals will converge to form a road runoff and flow towards the lower level, namely the inlet pipe 1 in this embodiment. As the liquid hazardous chemicals come into contact with the conduit 2, they then enter the primary tank 3 through the conduit 2. The bottom of the inner side of the primary tank 3 is connected to a water measuring pipe 5. Under the action of gravity, the liquid hazardous chemicals will flow from the primary tank 3 into the lower water measuring pipe 5, and then proceed as per the instruction manual. Figure 3As shown, liquid hazardous chemicals flow from the end of the measuring pipe 5 through the water nozzle 8 into the secondary tank 6. In this embodiment, buckets 9 are stacked inside the secondary tank 6. The liquid hazardous chemicals flowing out of the water nozzle 8 flow into the buckets 9. When the water level inside the buckets 9 rises, the float 801, under the constraint of the two vertical rods 7011, can only rise vertically and will not deviate. As the float 801 continues to rise, it will contact the water nozzle 8. Part of the liquid hazardous chemical sprayed from nozzle 8 is trapped in the notch 802. Then, the float 801 continues to move upwards. Because the nozzle 8 continues to spray liquid hazardous chemicals, the float 801 will rise, eventually causing the notch 802 of the float 801 to contact the detection end of the electrode 702. The rising float 801 will then directly contact the nozzle 8. The nozzle 8 is made of pure natural rubber and is flexible. After being lifted by the float 801, it will deform and begin to fold upwards. At this time, the nozzle 8, the measuring tube 5, and the... The secondary pool 6 forms a U-shaped pipe. Due to the increased height of the water nozzle 8 and the absence of a pump for pressurization in the water measuring pipe 5, the liquid hazardous chemicals inside the water nozzle 8 are held back by air pressure, temporarily slowing their outflow. Once the corresponding electrode 702 contacts the notch 802, the detector can begin detection. The detector in this application can be either an OHR-PH10 water quality detector or an OHR-MT10 air quality detector. Because air circulation inside the secondary pool 6 is slow, if hazardous chemicals enter the secondary pool 6 but the water volume is insufficient to reach half the height of the secondary pool 6, the water quality detector will not trigger. Since hazardous chemicals are volatile, once a change in the oxygen content of the secondary pool 6 is detected, it inevitably indicates a hazardous chemical leak. Furthermore, the evaporation of hazardous chemicals in the secondary pool 6 leads to a decrease in oxygen content. Therefore, the detection results are directly divided into two categories: ordinary rainfall and hazardous chemical leak. When the result is a hazardous chemical leak, the detector will directly issue an alarm.

[0041] Example 2 In this embodiment, the crossbar is placed directly above the secondary tank 6. Furthermore, the leaked hazardous chemical liquid flows into the secondary tank 6 as in the previous embodiment, so this will not be described in detail. In this embodiment, when the hazardous chemical liquid enters the secondary tank 6, it directly contacts the inner wall of the secondary tank 6. Then, as the primary tank 3 continues to pour into the secondary tank 6, the float 801 begins to rise. As the float 801 continues to rise, it will contact the water nozzle 8. Part of the liquid hazardous chemical sprayed from the water nozzle 8 is trapped in the notch 802. Then, the float 801 continues to move upward because the continuous spraying of liquid hazardous chemical from the water nozzle 8 will cause the float 801 to rise further. The upward movement of float 801 eventually brings the notch 802 of float 801 into contact with the detection end of electrode 702. The rising float 801 then directly contacts the water nozzle 8. The water nozzle 8, made of natural rubber, is flexible and deforms upwards after being lifted by float 801. At this point, the water nozzle 8, measuring pipe 5, and secondary tank 6 form a U-shaped pipe. Because the height of the water nozzle 8 increases and the measuring pipe 5 is not pressurized by a pump, the liquid hazardous materials inside the water nozzle 8 are held back by air pressure, temporarily slowing their outflow. The corresponding electrode 702 then contacts the notch 802 and detects the liquid hazardous materials. The instrument can begin testing immediately. This application uses either the OHR-PH10 water quality analyzer or the OHR-MT10 air quality analyzer. Because air circulation is slow inside the secondary tank 6, if hazardous chemicals enter the secondary tank 6 but the water volume is insufficient to reach half the tank's height, the water quality analyzer will not trigger. Since hazardous chemicals are volatile, any change in oxygen content detected in the secondary tank 6 indicates a leak. Furthermore, the evaporation of the hazardous chemicals within the secondary tank 6 leads to a decrease in oxygen content, thus the test results are directly classified as... There are two types of leaks: ordinary rainfall and hazardous chemical leaks. In the case of a hazardous chemical leak, the detector will directly issue an alarm, and then highway staff will come to open the solenoid valve. Since the solenoid valve is also an existing device, this application has not improved the solenoid valve, but simply uses the DF4-6 model solenoid valve that is currently available on the market. The operating instructions for this model of solenoid valve have been published in its manual, so this application will not repeat them. When the solenoid valve is opened, the hazardous chemical liquid will flow down the drainage pipe 10 to the hazardous chemical main pipe 11, and finally flow into the No. 2 collection pool for separate treatment.

[0042] Furthermore, in this embodiment, if rainfall occurs, the specific detection process for rainwater is the same as in Embodiment 1. Since it is ordinary water detection, no alarm will be triggered. Simultaneously, once the water inlet 8 is blocked, the water in the primary tank 3 will begin to accumulate and rise until the water level in the primary tank 3 reaches the position of the water pipe 4, as per the attached instruction manual. Figure 7 As shown, water pipe 4 will guide water downwards to outlet pipe 401, and finally into collection pool 1. Furthermore, the water inside secondary pool 6 can also be diverted into collection pool 2 simply by opening the solenoid valve. Since the volume of secondary pool 6 is not large and the water inside secondary pool 6 is ordinary rainfall, it will not have an adverse effect on collection pool 2.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sewage collection tank for runoff from a highway surface, comprising an inlet pipe (1) installed along the roadside on both sides of the highway, wherein the inner side of the inlet pipe (1) is connected to a conduit (2) extending downward and buried in the soil, and the tail end of the conduit (2) is connected to the top of the side wall of a primary tank (3) and penetrates its outer wall into the interior thereof, characterized in that: The tail end side wall of the primary pool (3) is sealed with a water pipe (4) symmetrical to the tail end of the conduit (2) by a flange. The water pipe (4) extends downward and enters the outlet pipe (401). The tail end of the outlet pipe (401) is connected to the No. 1 collection pool. The bottom end of the primary pool (3) is sealed with a water measuring pipe (5) by a flange. The tail end of the water measuring pipe (5) is connected to the top of the side wall of the secondary pool (6) and penetrates into its interior. The secondary pool (6) is equipped with a water distribution structure. The water distribution structure includes: a horizontal bar (7), which is located above the opening of the secondary pool (6), a through hole (701) is opened at the middle end of the horizontal bar (7), an electrode (702) is inserted into the inside of the through hole (701), the electrode (702) is wired to a detector, a vertical bar (7011) is connected to the bottom of the horizontal bar (7), the vertical bar (7011) extends downward to the lower inside of the secondary pool (6), a float (801) is slidably connected to the surface of the vertical bar (7011), and a notch (802) for the bottom of the alignment electrode (702) is opened on the top surface of the float (801). It also includes a water nozzle (8), which is horizontally arranged inside the secondary pool (6). The water nozzle (8) is a cone shape with openings at the front and back and hollow inside. The water nozzle (8) is smaller at the front and larger at the back, and its rear end is sealed and connected to the opening of the water measuring pipe (5) located inside the secondary pool (6).

2. The highway pavement runoff sewage collection tank according to claim 1, characterized in that: The top surface of the crossbar (7) and both ends of the through hole (701) are also provided with locking components. The locking components include a locking block (703). The locking block (703) has a threaded hole through itself on the side facing the through hole (701). The screw (705) is threadedly connected to the screw (705). The tail end of the screw (705) passing through the screw hole is movably connected to an arc-shaped clip (706). The rear wall of the arc-shaped clip (706) and the screw (705) are rotatably connected by a bearing. The front wall is a concave arc shape that fits the surface of the electrode (702).

3. A highway pavement runoff sewage collection tank according to claim 1 or 2, characterized in that: The float (801) is made of polyurethane foam and its surface is coated with 0.1 mm of epoxy resin or polyurethane coating.

4. A highway pavement runoff sewage collection tank according to claim 3, characterized in that: The diameter of the float (801) is three-quarters or two-thirds of the inner diameter of the secondary pool (6).

5. A highway pavement runoff sewage collection tank according to claim 4, characterized in that: The float (801) is also provided with a vertical groove (803) on its side, and the vertical groove (803) surrounds the side wall of the float (801) and is provided at intervals in an orderly manner.

6. A highway pavement runoff sewage collection tank according to claim 5, characterized in that: The water nozzle (8) is made of natural rubber, and the tail end of the water nozzle (8) is fixed in a sleeve form at the opening of the water measuring pipe (5) located inside the secondary pool (6). A retaining ring (501) is also fixedly installed at the opening of the water measuring pipe (5) located inside the secondary pool (6). The inner diameter of the retaining ring (501) is equal to the inner diameter of the water measuring pipe (5), and the thickness of the retaining ring (501) is half the thickness of the wall of the water measuring pipe (5). The two form a concave-convex difference for connecting with the rear end of the water nozzle (8).

7. A highway pavement runoff sewage collection tank according to claim 6, characterized in that: The water distribution structure also includes a bucket (9), which fits into the inner side of the secondary pool (6) and slides down from top to bottom inside the secondary pool (6) to form a stack with it. The top of the bucket (9) has slots (901) on both sides, and the two slots (901) are connected to the beginning and end of the crossbar (7). The top of the bucket (9) also has a limiting groove (902) that penetrates its own side wall. The width of the limiting groove (902) is greater than the rear diameter of the water nozzle (8) and restricts the water nozzle (8) within the limiting groove (902).

8. A highway pavement runoff sewage collection tank according to claim 7, characterized in that: The inner bottom surface of the bucket (9) also contacts the bottom of the vertical rod (7011) extending downwards, and the float (801) is also located on the inner bottom surface of the bucket (9).

9. A highway pavement runoff sewage collection tank according to claim 2, characterized in that: The water distribution structure also includes a diversion pipe (10), which is vertically located on the bottom of the secondary pool (6) and its bottom is inserted into its interior. The bottom of the diversion pipe (10) is connected to the main hazardous chemical pipe (11), and the top of the main hazardous chemical pipe (11) is sequentially connected to the diversion pipes (10) installed in the secondary pool (6) at intervals, and the tail end is connected to the No. 2 collection pool.

10. A highway pavement runoff sewage collection tank according to claim 9, characterized in that: The drainage pipe (10) is also equipped with a solenoid valve (12), which is located at the top of the drainage pipe (10) near the secondary pool (6) below.

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