Automatic drainage device and drainage method for emergency pool

Abstract

The present invention discloses an automatic drainage device and drainage method for an emergency pool. The automatic drainage device for an emergency pool includes an emergency pool, a siphon assembly and a sewage collection assembly. The sewage collection assembly is connected to the emergency pool. The water inlet end of the siphon assembly is arranged in the emergency pool. The drainage end of the siphon assembly is connected to the outside of the emergency pool. The emergency pool is provided with a maximum water level and a minimum water level. When the water level of the emergency pool is at the maximum water level, the siphon assembly can automatically generate a siphon and discharge the water to the minimum water level. When the water level of the emergency pool is lower than the minimum water level, the siphon work of the siphon assembly is destroyed and the siphon is automatically stopped. By setting the siphon assembly, the water (rainwater, sewage, etc.) in the emergency pool can be discharged in time, leaving an effective emergency space for storing accident water, reducing the risk of environmental pollution of the protected water body by emergencies, and the water does not require remote monitoring or a water level alarm system during the discharge process, and does not require manual intervention. The system runs automatically, reducing the operating cost.

Description

Technical Field

[0001] The invention relates to an emergency device for highway bridge and culvert engineering, in particular to an automatic drainage device for an emergency pool and a drainage method of the device. Background Art

[0002] During the construction of highway projects in my country, due to natural conditions and the limitations of the project itself, crossing sensitive water bodies (such as drinking water sources) frequently occurs. It is generally prohibited to set up sewage outlets in drinking water source protection areas. However, for major public infrastructure projects such as bridges across water bodies and highways that cannot be avoided, they can be approved for construction on the premise of sufficient demonstration. The demonstration plan must be strict, and measures must be taken to prevent spillage and leakage, and a dedicated collection system must be set up to treat the collected sewage off-site and discharge it in compliance with standards.

[0003] There are two main aspects of the impact of highways or bridges on sensitive water bodies during operation. On the one hand, rainwater runoff from the road or bridge surface washes away road pollutants and affects the water body. On the other hand, when an accident occurs in a hazardous goods transport vehicle, hazardous chemicals leak and pollute the water body.

[0004] At present, when highways or bridges cross protected areas, the treatment of accident water mainly adopts the road runoff collection system to collect it into the emergency pool, and then further treat it. However, the emergency pool of this runoff collection system lacks information transmission functions such as remote control and water level alarm. When the water level in the pool reaches the highest design water level, it cannot be discharged in time. If there is a sudden leakage of dangerous chemicals during the rainy season with heavy and frequent rainfall, the pool often cannot provide effective emergency space, thus losing its emergency function, causing the accident water to overflow, and then causing serious water pollution consequences. Summary of the invention

[0005] One purpose of the present invention is to provide an automatic drainage device for an emergency pool, which has a simple structure and can automatically empty the emergency pool, leaving an effective emergency space to collect accident water and avoid accident water overflowing and polluting the environment.

[0006] Another object of the present invention is to provide a drainage method which can automatically drain water and is easy to operate.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] In a first aspect, an automatic drainage device for an emergency pool is provided, comprising an emergency pool, a siphon assembly and a sewage collection assembly, wherein the sewage collection assembly is connected to the emergency pool and is used to transport water collected from a road surface or a bridge deck to the emergency pool, wherein a water inlet end of the siphon assembly is arranged in the emergency pool, and a drainage end of the siphon assembly is connected to the outside of the emergency pool, wherein a maximum water level and a minimum water level are provided in the emergency pool, and when the water level of the emergency pool is at the maximum water level, the siphon assembly can automatically generate a siphon and discharge water; when the water level of the emergency pool is lower than the minimum water level, the siphon work of the siphon assembly is destroyed and the siphon is automatically stopped.

[0009] As a preferred solution of the automatic drainage device of the emergency pool, the siphon assembly includes a siphon hood and a siphon tube, the siphon hood is installed in the emergency pool, one end of the siphon hood is open and the other end is sealed, the open end of the siphon hood faces the bottom of the emergency pool, one end of the siphon tube extends into the siphon hood, and the other end passes through the emergency pool and extends outside the emergency pool, the highest water level is not lower than the distance between the end face of the siphon tube inserted into the siphon hood and the bottom of the emergency pool, and the lowest water level is not higher than the distance between the open end of the siphon hood and the bottom of the emergency pool.

[0010] As a preferred solution of the automatic drainage device for the emergency pool, the height of the siphon hood is adjustable.

[0011] As a preferred solution of the automatic drainage device for the emergency pool, the siphon tube includes a first tube and a second tube detachably connected to the first tube, the second tube is vertically arranged, and one end of the second tube away from the first tube is arranged in the siphon cover.

[0012] As a preferred solution for the automatic drainage device of the emergency pool, the first pipe includes an integrally formed first part and a second part, the first part is perpendicular to the second part, the second part is vertically arranged, and one end of the second part away from the first part is threaded or clamped to the second pipe or connected through a pipe joint.

[0013] As a preferred solution of the automatic drainage device for the emergency pool, the second pipe is a telescopic pipe.

[0014] As a preferred solution of the automatic drainage device of the emergency pool, a drain valve is provided at the bottom of the emergency pool.

[0015] As a preferred solution of the automatic drainage device for the emergency pool, a treatment pool is provided outside the emergency pool adjacent to the emergency pool, and the treatment pool is connected to the drainage end of the siphon assembly.

[0016] As a preferred solution of the automatic drainage device of the emergency pool, the emergency pool is provided with a treatment pool, and a detection component capable of detecting water quality in real time is provided at the sewage inlet end of the treatment pool or in the treatment pool.

[0017] In a second aspect, a drainage method is also provided, using the automatic drainage device for an emergency pool, wherein the sewage collection component of the automatic drainage device for the emergency pool collects water from the ground or the bridge deck and transports it to the emergency pool, and the water level in the emergency pool gradually rises. When the water level reaches the highest water level, the siphon component in the emergency pool starts to automatically generate a siphon to discharge the water in the emergency pool, and the water level in the emergency pool gradually decreases. When the water level drops to the lowest water level, the siphon work of the siphon component is destroyed and the siphon stops automatically.

[0018] The beneficial effects of the embodiments of the present invention are as follows: by setting up a siphon component, the water (rainwater, sewage, etc.) in the emergency pool can be discharged in a timely manner, leaving an effective emergency space for storing accident water, thereby reducing the risk of environmental pollution to the protected water body caused by emergencies, and the water does not require remote monitoring or a water level alarm system during the discharge process, and does not require manual intervention. The system runs automatically, thereby reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic structural diagram of an automatic drainage device for an emergency pool according to an embodiment of the present invention.

[0021] In the figure:

[0022] 1. Collection port; 2. Collection pipe; 3. Siphon hood; 4. Siphon pipe; 41. First pipe; 42. Second pipe; 5. Vent valve; 6. Emergency pool. DETAILED DESCRIPTION

[0023] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] like Figure 1 As shown, the automatic drainage device of the emergency pool of the embodiment of the present invention comprises an emergency pool 6, a siphon assembly and a sewage collection assembly. The sewage collection assembly is connected to the emergency pool 6 and is used to transport the collected water from the road surface or bridge surface to the emergency pool 6. The water inlet end of the siphon assembly is arranged in the emergency pool 6, and the drainage end of the siphon assembly is connected to the outside of the emergency pool 6. The emergency pool 6 is provided with a maximum water level and a minimum water level. When the water level of the emergency pool 6 is at the maximum water level, the siphon assembly can automatically generate siphon and discharge the water; when the water level of the emergency pool 6 is lower than the minimum water level, the siphon work of the siphon assembly is destroyed and the siphon is automatically stopped. By setting up the siphon assembly, the water (rainwater, sewage, etc.) in the emergency pool 6 can be discharged in time, leaving an effective emergency space for storing accident water, reducing the risk of environmental pollution of the protected water body by emergencies, and the water does not require remote monitoring or water level alarm system during the discharge process, and does not require manual intervention. The system runs automatically, reducing the operating cost. .

[0027] The automatic drainage device for the emergency pool in the embodiment of the present invention is mainly used for handling highway accidents to prevent the pollution of the protected water body caused by the accident water of the emergency when the highway crosses the protected water body.

[0028] In this embodiment, the siphon assembly includes a siphon cover 3 and a siphon tube 4. The siphon cover 3 is installed in the emergency pool 6. One end of the siphon cover 3 is open and the other end is sealed. The open end of the siphon cover 3 faces the bottom of the emergency pool 6. One end of the siphon tube 4 extends into the siphon cover 3, and the other end passes through the emergency pool 6 and extends to the outside of the emergency pool 6. The highest water level is not lower than the distance between the end face of the end of the siphon tube 4 inserted into the siphon cover 3 and the bottom of the emergency pool 6, and the lowest water level is not higher than the distance between the open end of the siphon cover 3 and the bottom of the emergency pool 6. Optionally, the siphon cover 3 is detachably arranged in the emergency pool 6. The cooperation of the siphon cover 3 and the siphon tube 4 can realize a relatively stable siphon operation, and the siphon cover 3 is independent of the emergency pool 6, which can facilitate position adjustment, maintenance or replacement.

[0029] The sewage collection component includes a collection port 1 and a collection pipe 2. The collection port 1 is arranged at a lower position on the bridge deck or the road surface. One end of the collection pipe 2 is connected to the collection port 1, and the other end is connected to the emergency pool 6.

[0030] Optionally, one end of the collecting pipe 2 connected to the emergency pool 6 is arranged adjacent to the top of the emergency pool 6 .

[0031] In one embodiment, the height of the siphon hood 3 is adjustable. By setting the siphon hood 3 to be height adjustable, the position of the lowest water level can be adjusted, thereby changing the distance between the highest water level and the lowest water level, and the volume between the highest water level and the lowest water level is the effective emergency space, and the adjustable volume can be adjusted in real time according to the needs of different periods to ensure that the accident water can be completely collected and processed.

[0032] The optimal effective emergency space of the emergency pool 6 needs to be determined based on the following factors: the maximum tank volume of hazardous chemicals transport vehicles, the maximum fire water consumption during an accident, the rainfall in different regions and different time periods may be different, and the maximum local rainfall during the leakage accident. If all are set according to the maximum volume, the capacity of the emergency pool 6 will be wasted. Therefore, when selecting, the height of the siphon hood 3 can be adjusted according to the precipitation in different time periods to reasonably plan the effective emergency space of the emergency pool 6.

[0033] Specifically, the siphon cover 3 is fixed to the top of the emergency pool 6 by a lifting rod (not shown in the figure). The lifting rod can be a structure of a sleeve rod and a limiting member, that is, the lifting rod includes a first rod and a second rod sleeved outside the first rod, and the first rod and the second rod are both provided with a plurality of limiting holes arranged at equal intervals in the vertical direction, and the limiting member is a limiting screw, and when the relative positions of the first rod and the second rod are adjusted, the limiting screw is inserted to lock the relative positions of the first rod and the second rod.

[0034] In other embodiments, the lifting rod can also be made of memory metal. Stretching or compressing the lifting rod can realize the lifting and lowering of the siphon hood 3. Due to the characteristics of the memory metal, it can be fixed in the stretched position after stretching, and can be fixed in the fixed position after compression. Such a structure can reduce the difficulty of lifting and lowering the siphon hood 3.

[0035] A height scale is provided on the pool wall of the emergency pool 6 , and the height scale can facilitate the lifting and lowering adjustment of the siphon cover 3 .

[0036] In one embodiment, the siphon pipe 4 includes a first pipe 41 and a second pipe 42 detachably connected to the first pipe 41, the second pipe 42 is vertically arranged, and one end of the second pipe 42 away from the first pipe 41 is arranged in the siphon cover 3. By detachably arranging the second pipe 42 and the first pipe 41, the second pipe 42 of different lengths can be selected as needed to change the position of the highest water level, thereby changing the effective emergency space of the emergency pool 6, and the adjustment range is large, which is convenient for greatly increasing or reducing the effective emergency space, and has a wider range of application. Different regions can also use the same set of automatic drainage devices for the emergency pool 6, reducing the difficulty of manufacturing.

[0037] In this embodiment, the first tube 41 includes an integrally formed first part and a second part, the first part is perpendicular to the second part, the second part is vertically arranged, and one end of the second part away from the first part is threadedly screwed or clamped or connected to the second tube 42 through a pipe joint.

[0038] In other embodiments, the second tube 42 is a telescopic tube. By setting the second tube 42 as a telescopic tube, the height of the second tube 42 in the vertical direction can be adjusted without replacing the second tube 42, which reduces the difficulty of operation, and does not need to equip multiple second tubes 42 to correspond to effective emergency spaces of different volumes, thereby reducing the number of parts and manufacturing costs.

[0039] In order to facilitate the adjustment of the height of the second tube 42 in the vertical direction, a pull ring can be provided on the outer wall of the second tube 42, and a pull rope is tied to the pull ring. The other end of the pull rope away from the pull ring passes through the pull hole on the emergency pool 6 and is fixed to the fixed ring outside the emergency pool 6. During operation, the pull rope is pulled to allow the second tube 42 to shrink upward in the vertical direction. When the second tube 42 needs to be stretched downward in the vertical direction, the pull ring can be supported by the push rod.

[0040] In one embodiment, a drain valve 5 is provided at the bottom of the emergency pool 6. When the emergency pool 6 collects the accident water, the drain valve 5 at the bottom of the pool can be opened, and the water in the emergency pool 6 can be pumped to a tank truck for harmless treatment by a corresponding hazardous waste treatment qualification unit.

[0041] In one embodiment, an emergency pool 6 is provided near the treatment pool. By providing the treatment pool near the emergency pool 6, rainwater and other sewage can be quickly treated nearby without the need to add a power device to transport the water in the emergency pool 6, thereby reducing the treatment cost.

[0042] In this embodiment, the treatment tank is arranged in a rainwater treatment station.

[0043] In one embodiment, a detection component that can detect the water quality in real time is set at the sewage inlet end of the treatment pool or in the treatment pool. By setting the detection component, the staff in the rainwater treatment station can judge in real time whether there is accident water overflowing into the treatment pool. If there is, it means that the effective emergency space in the emergency pool 6 is not enough to store the accident water. Then the distance between the highest water level and the lowest water level can be adjusted in real time to increase the effective emergency space and facilitate the storage of accident water. After the subsequent accident water is completely transported away, the highest water level and the lowest water level are adjusted to the initial position to collect or discharge conventional rainwater and other sewage.

[0044] An embodiment of the present invention also provides a drainage method, using an automatic drainage device for an emergency pool as in any of the above embodiments, wherein a sewage collection component of the automatic drainage device for the emergency pool collects water from the ground or the bridge deck and transports it to an emergency pool 6, and the water level in the emergency pool 6 gradually rises. When the water level reaches the highest water level, a siphon component in the emergency pool 6 starts to automatically generate a siphon, and the water level in the emergency pool 6 gradually decreases. When the water level drops to the lowest water level, the siphon work of the siphon component is destroyed and the siphon stops automatically.

[0045] When the accident water is collected in the emergency pool 6, the drain valve 5 at the bottom of the emergency pool 6 is opened, so that all the accident water in the emergency pool 6 is pumped into the tank truck and transported to the treatment unit.

[0046] In other embodiments, the emergency pool 6 is connected to a treatment pool in a nearby rainwater treatment station through a siphon 4. When the accident water in the emergency pool 6 overflows into the treatment pool, the detection component in the treatment pool detects the accident water, and adjusts the height of the siphon cover 3 and the height of one end of the siphon 4 extending into the siphon cover 3 to increase the maximum water level and lower the minimum water level, thereby increasing the effective emergency space in the emergency pool 6, collecting accident water in the largest range, and reducing the number of times the accident water is transported and treated.

[0047] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the purpose of clarifying the device. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0048] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. An automatic drainage device for an emergency pool, characterized in that: It comprises an emergency pool, a siphon assembly and a sewage collection assembly. The sewage collection assembly is in communication with the emergency pool and is used to transport the collected water from the road surface or bridge deck to the emergency pool. The water inlet end of the siphon assembly is arranged in the emergency pool, and the drainage end of the siphon assembly is connected to the outside of the emergency pool. The emergency pool is provided with a maximum water level and a minimum water level. When the water level of the emergency pool is at the maximum water level, the siphon assembly can automatically generate a siphon and discharge the water; when the water level of the emergency pool is lower than the minimum water level, the siphon work of the siphon assembly is destroyed and the siphon is automatically stopped. The siphon assembly includes a siphon cover and a siphon tube. The siphon cover is installed in the emergency pool. One end of the siphon cover is open and the other end is sealed. The open end of the siphon cover faces the bottom of the emergency pool. One end of the siphon tube extends into the siphon cover, and the other end passes through the emergency pool and extends to the outside of the emergency pool. The highest water level is not lower than the distance between the end face of the end of the siphon tube inserted into the siphon cover and the bottom of the emergency pool. The lowest water level is not higher than the distance between the open end of the siphon cover and the bottom of the emergency pool. The siphon cover The height of the siphon cover (3) is adjustable; by arranging the siphon cover (3) to be height-adjustable, the position of the lowest water level can be adjusted, thereby changing the distance between the highest water level and the lowest water level; the siphon pipe comprises a first pipe and a second pipe detachably connected to the first pipe, the second pipe is arranged vertically, an end of the second pipe away from the first pipe is arranged in the siphon cover, the second pipe is a telescopic pipe, and by arranging the second pipe (42) to be a telescopic pipe, the position of the highest water level can be changed, thereby changing the effective emergency space of the emergency pool (6).

2. The automatic drainage device for emergency pool according to claim 1, characterized in that: The first tube comprises an integrally formed first part and a second part, the first part is perpendicular to the second part, the second part is vertically arranged, and one end of the second part away from the first part is threadedly screwed or clamped to the second tube or connected via a pipe joint.

3. The automatic drainage device for emergency pool according to claim 1 or 2, characterized in that: A drain valve is arranged at the bottom of the emergency pool.

4. The automatic drainage device for emergency pool according to claim 1 or 2, characterized in that: A treatment pool is provided outside the emergency pool and adjacent thereto, and the treatment pool is communicated with the drainage end of the siphon assembly.

5. The automatic drainage device for emergency pool according to claim 1 or 2, characterized in that: A treatment pool is arranged outside the emergency pool and adjacent thereto. A detection component capable of detecting water quality in real time is arranged at the sewage inlet end of the treatment pool or inside the treatment pool.

6. A drainage method, characterized in that: Using the automatic drainage device for an emergency pool as described in any one of claims 1 to 5, the sewage collection component of the automatic drainage device for the emergency pool collects water from the ground or the bridge deck and transports it to the emergency pool. The water level in the emergency pool gradually rises. When the water level reaches the highest water level, the siphon component in the emergency pool starts to automatically siphon and discharge the water in the emergency pool. The water level in the emergency pool gradually decreases. When the water level drops to the lowest water level, the siphon work of the siphon component is destroyed and the siphon stops automatically.

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