A high-efficiency and energy-saving water conservancy engineering drainage system

Abstract

This invention relates to a high-efficiency and energy-saving water conservancy engineering drainage system, comprising several drainage devices. Each drainage device is connected to the others via drainage pipelines of drainage mechanisms in each infiltration well. Each drainage device includes: a rainwater well, located on both sides of urban roads, for collecting rainwater; a diversion pipe for connecting the rainwater well and the infiltration well; an infiltration well for infiltrating rainwater into groundwater, including a drainage mechanism for draining water into the infiltration wells of adjacent drainage devices; and a central control unit connected to the drainage mechanism, used to determine the target infiltration well for drainage by the current drainage device based on the water level of the infiltration wells in each drainage device. The central control unit determines the activation level and air supply power of the drainage mechanism based on the current water level of the infiltration well, and adjusts the air supply power of the drainage mechanism of the current infiltration well based on the water level of the target infiltration well and the change in water level after a preset drainage time.

Description

Technical Field

[0001] This invention relates to the field of urban drainage, and in particular to a highly efficient and energy-saving water conservancy engineering drainage system. Background Technology

[0002] Highly efficient and energy-saving water conservancy engineering drainage systems typically employ fixed drainage pumping stations installed under road interchanges, bridges, and culverts to forcibly discharge collected floodwater. However, since flooding is not a frequent occurrence, installing fixed drainage pumping stations results in significant equipment waste. Furthermore, manual on-site checks are required to determine whether to activate the pumps based on the floodwater situation, and the design capacity of these pumping stations is insufficient for emergency use.

[0003] Chinese patent CN106499033B discloses a road green belt system for drainage and water conservation. It proposes utilizing existing road green belt resources by constructing a system based on drainage and water conservation, using rainwater resources from roads to maintain the green belts. During urban rainstorms, the water storage space in the storage tank can initially store some water, appropriately reducing the drainage pressure on the urban pipe network. When there is a prolonged drought and the soil is water-scarce, the water in the storage space can flow through permeable baffles and be transported to the plants via the soil. However, it still does not solve the problem of emergency drainage of rainwater trapped in low-lying areas of urban roads due to excessive rainfall. Summary of the Invention

[0004] Therefore, the present invention provides an urban road drainage system that can solve the technical problem of excessive rainwater retention in wells in urban roads, which leads to the inability to drain water in a timely manner and thus causes urban flooding.

[0005] To achieve the above objectives, the present invention provides a high-efficiency and energy-saving drainage system for water conservancy projects, comprising:

[0006] Several drainage devices are connected to each other via drainage pipelines in the drainage mechanisms of each seepage well. The drainage devices include:

[0007] Rainwater wells are installed on both sides of urban roads to collect rainwater;

[0008] The diversion pipe is used to connect the rainwater well and the seepage well;

[0009] The seepage well is used to seep rainwater into groundwater. The seepage well includes a drainage mechanism for draining water into the seepage well of an adjacent drainage device. The drainage mechanism includes a bottom mechanism for supporting a water pump and an air pump, an air pump located above the bottom mechanism for providing kinetic energy to the water pump, and a water pump located above the bottom mechanism and connected to the air pump. The drainage mechanism drives the impeller in the water pump to rotate through the air pump, thereby discharging the rainwater in the seepage well through the drainage pipeline.

[0010] The central control unit, connected to the drainage mechanism, is used to determine the target seepage well for drainage of the current drainage device based on the water level of the seepage well in each drainage device. The central control unit determines the activation level and air supply power of the drainage mechanism based on the current water level of the seepage well, and adjusts the air supply power of the drainage mechanism of the current seepage well based on the water level of the target seepage well and the change in water level after a preset drainage time, so as to ensure that urban road drainage meets the preset standards.

[0011] Furthermore, the central control unit presets a first standard value h1 for the water level in the seepage well. The central control unit compares the detected water level h in the seepage well with the preset first standard value h1, and controls the drainage mechanism to adjust the water level in the seepage well.

[0012] When h≤h1, the central control unit determines that the current water level of the seepage well meets the preset standard, and the central control unit does not need to start the drainage mechanism.

[0013] When h > h1, the central control unit determines that the current water level of the seepage well does not meet the preset standard, and the central control unit needs to activate the drainage mechanism to assist the seepage well in draining water.

[0014] Furthermore, each of the aforementioned seepage wells is equipped with two drainage mechanisms. The first drainage mechanism A1 is connected to the previous seepage well, and the second drainage mechanism A2 is connected to the next seepage well. The central control unit determines the activation level of the drainage mechanism by comparing the current water level h of the seepage well with a preset second standard value h2 for the seepage well water level.

[0015] When h1 < h < h2, the central control unit determines to start a drainage mechanism. The central control unit determines the target seepage well for drainage of the current seepage well based on the water level height of the previous seepage well and the water level height of the next seepage well.

[0016] When h≥h2, the central control unit determines to activate two drainage mechanisms to discharge the rainwater in the current seepage well into the next and next seepage wells.

[0017] Furthermore, the central control unit selects the current air supply power of the seepage well drainage mechanism based on the activation level of the target seepage well drainage mechanism, wherein,

[0018] When the activation amount of the drainage mechanism of the target seepage well is 2, the central control unit selects the first preset air supply power P1 as the air supply power of each drainage mechanism of the current seepage well.

[0019] When the activation amount of the drainage mechanism of the target seepage well is 1, the central control unit selects the second preset air supply power P2 as the air supply power of each drainage mechanism of the current seepage well;

[0020] When the activation amount of the drainage mechanism of the target seepage well is 0, the central control unit selects the third preset air supply power P3 as the air supply power of each drainage mechanism of the current seepage well.

[0021] The central control unit has a preset gas supply power P, and sets a first preset gas supply power P1, a second preset gas supply power P2, and a third preset gas supply power P3.

[0022] Furthermore, when the central control unit determines that the activation level of the drainage mechanism of the current seepage well is 2, the central control unit sets the drainage mechanism of the current seepage well connected to the i-th target seepage well as Ai, where i = 1, 2. The central control unit adjusts the air supply power of the drainage mechanism Ai according to the change in water level height per unit time Δh in the current seepage well.

[0023] When Δh < Δh1, the central control unit does not adjust the air supply power of the drainage mechanism of the current seepage well;

[0024] When Δh1≥Δh1, the central control unit determines that the gas supply power P1 of the drainage mechanism Ai should be increased.

[0025] The central control unit presets Δh1 as the first standard value of water level height change per unit time.

[0026] Furthermore, when the central control unit determines that the activation level of the drainage mechanism of the current seepage well is 2, the central control unit sets the drainage mechanism of the current seepage well connected to the i-th target seepage well as Ai, where i = 1, 2. The central control unit adjusts the air supply power of the drainage mechanism Ai according to the change in water level height per unit time Δh in the current seepage well.

[0027] When △h < △h1, the central control unit determines that it will not adjust the air supply power of the drainage mechanism of the current seepage well;

[0028] When △h1<△h<△h2, the central control unit determines to increase the air supply power P1 of the drainage mechanism Ai to P11, and sets P11=P1×(1+(△h2-△h)×(△h-△h1) / (△h1×△h2));

[0029] When △h≥△h2, the central control unit increases the air supply power P1 of the drainage mechanism Ai to P12, and sets P12=P1×(1+(△h-△h2) / △h2);

[0030] The central control unit presets Δh1 as the first standard value of water level change per unit time and Δh2 as the second standard value of water level change per unit time.

[0031] Furthermore, the central control unit obtains that the change in water level in the current seepage well per unit time is greater than or equal to a preset second standard value for water level change. The central control unit compares the adjusted air supply power P12 of the drainage mechanism Ai with the drainage mechanism power Px used to inject water from the target seepage well to the current seepage well, and adjusts the air supply power of the drainage mechanism Ai accordingly.

[0032] When P12 > Px + △Pu, the central control unit does not adjust the gas supply power of the adjusted drainage mechanism Ai;

[0033] When P12≤Px+△Pu, the central control unit increases the gas supply power of the adjusted drainage mechanism Ai to P121, and sets P121=Px×1.5;

[0034] The central control unit presets ΔPu as the allowable error.

[0035] Furthermore, when the central control unit determines to activate a drainage mechanism, the central control unit compares the water level height hs1 of the previous seepage well with the water level height hx1 of the next seepage well to select the target seepage well for drainage from the current seepage well.

[0036] When hs1 < hx1, the central control unit determines to discharge the water from the current seepage well to the next seepage well;

[0037] When hs1 > hx1, the central control unit determines to discharge the water from the current seepage well to the next seepage well.

[0038] Furthermore, when the central control unit determines to activate a drainage mechanism, it sets the target seepage well as B and the power of the drainage mechanism injecting water from the current seepage well to the target seepage well as P2. The central control unit adjusts the air supply power of the drainage mechanism according to the change in water level height Δh within the current seepage well per unit time.

[0039] When △h < 0, the central control unit is set not to adjust the gas supply power of the drainage mechanism in the current seepage well;

[0040] When Δh≥0, the central control unit adjusts the air supply power P21>∑Py of the drainage mechanism in the current seepage well. Here, ∑Py is the total power of the drainage mechanism supplying water to the current seepage well.

[0041] Further, after a preset time, the central control unit acquires the water level height Hk of the target seepage wells, k = 1, 2. The central control unit then compares the water level height Hk of each target seepage well with the standard value H0k of the target seepage well water level height, and adjusts the air supply power Pa of the current seepage well drainage mechanism.

[0042] If Hk < H0k, the central control unit determines that the power of the drainage mechanism of the current seepage well is qualified;

[0043] Hk > H0k, the difference between the water level height Hk of each target seepage well and the standard value H0k of the target seepage well is used to determine whether to adjust the power of the drainage mechanism of the current seepage well;

[0044] The central control unit presets the target seepage well water level height standard value as H0k.

[0045] Furthermore, the central control unit determines whether to adjust the drainage mechanism power of the current seepage well based on the difference between the water level height Hk of each target seepage well and the standard value H0k of the target seepage well's water level height, and the change in water level height ΔH of the target seepage well per unit time.

[0046] When 0 < Hk - H0k < ΔHk and ΔH < ΔH0, the central control unit determines that it will not adjust the gas supply power of the current seepage well drainage mechanism.

[0047] When 0 < Hk - H0k < △Hk, and △H ≥ △H0, the central control unit determines to reduce the gas supply power Pa of the current seepage well drainage mechanism, so that Pa1 = Pa × (1 - (Hk - H0k)(△Hk + H0k - Hk) / △Hk2);

[0048] When Hk-H0k>△Hk and △H<△H0, the central control unit determines to reduce the gas supply power Pa of the current seepage well drainage mechanism, so that Pa1=Pa×(1-(△Hk+Hk-H0k) / △Hk);

[0049] When Hk-H0k>△Hk and △H>△H0, the central control unit determines that the current seepage well drainage mechanism stops working until Hk<H0k, at which point the central control unit determines that the previous seepage well drainage mechanism resumes working.

[0050] The central control unit presets the standard value of the allowable water level change of the target seepage well as △Hk, and the water level of the target seepage well per unit time is △H0.

[0051] Compared with the prior art, the beneficial effects of the present invention are that it solves the problem of emergency drainage of rainwater in low-lying areas of urban roads caused by excessive rainfall; the drainage system is composed of various drainage units, and the system can automatically adjust the drainage volume of each drainage unit per unit time according to the allowable drainage power of each drainage unit; the drainage system of the present invention also has a water storage function, avoiding the need to set up a separate water storage device, saving urban municipal space, and achieving the implementation effect of low cost, high cost performance, energy saving and high efficiency.

[0052] In particular, the drainage mechanism connects adjacent seepage wells, so that each drainage device is interconnected to form a flood drainage system. The system can automatically adjust the target drainage device for the rainwater that needs to be allocated. The central control unit presets the standard value of the water level in each seepage well and the change of water level per unit time, which can reasonably allocate the drainage volume undertaken by each seepage well and effectively utilize the self-circulation feature of the flood drainage system to achieve dynamic balance of drainage volume among the drainage devices in the system.

[0053] In particular, the central control unit of this invention sets a standard value for the water level of the seepage well to determine whether the water level in the seepage well meets the standard, and further determines whether to activate the drainage mechanism to assist the seepage well in draining water, so as to avoid excessive drainage pressure at a certain inlet of the urban municipal stormwater pipe network, thereby reasonably adjusting the drainage volume of each inlet. Specifically, if the current water level of the seepage well is higher than the preset first standard value for the seepage well water level, the central control unit determines to activate the drainage mechanism in the current seepage well.

[0054] In particular, the central control unit of this invention sets a second standard value for the water level of the seepage well to determine whether the current water level in the seepage well exceeds the predicted water capacity of the seepage well, and further determines the number of drainage mechanisms to be activated, so as to avoid insufficient drainage volume of the current seepage well per unit time and achieve efficient drainage. Specifically, if the current water level of the seepage well is lower than the preset second standard value for the seepage well water level, it means that the water volume in the current seepage well does not exceed the predicted water capacity. The central control unit determines the target seepage well for drainage of the current seepage well based on the water level height of the previous seepage well and the water level height of the next seepage well, and activates the drainage mechanism to drain water to the target seepage well. If the current water level of the seepage well is higher than the preset second standard value for the seepage well water level, it means that the water volume in the current seepage well exceeds the predicted water capacity. The central control unit determines to activate two drainage mechanisms to discharge the rainwater in the current seepage well into the previous seepage well and the next seepage well.

[0055] In particular, this invention preliminarily determines the air supply power of the drainage mechanism within the target seepage well based on the activation level of the drainage mechanism, which can prevent excessive drainage volume allocated to a single seepage well, thus reducing the overall drainage efficiency of the drainage system. The central control unit of this invention sets a first preset air supply power, a second preset air supply power, and a third preset air supply power, which allows the central control unit to accurately adjust the air supply power of the drainage mechanism according to the actual application of the system in a short time, achieving energy-saving and high-efficiency results.

[0056] In particular, the central control unit of this invention presets a first standard value and a second standard value for the change in water level height per unit time as reference parameters. This allows the central control unit to accurately determine the change in water level height in the seepage well per unit time, and thus adjust the air supply power of the drainage mechanism in real time according to the drainage situation in the well, so as to meet the drainage requirements. The central control unit adjusts the air supply power of the drainage mechanism in a timely manner according to the real-time drainage situation in the well, achieving the effect of energy saving and environmental protection.

[0057] In particular, the central control unit of this invention uses the change in water level in the seepage well per unit time as a parameter for adjusting the gas supply power, ensuring that the current rainwater volume in the seepage well does not exceed the predicted capacity, thus preventing the collapse of the rainwater holding function of a certain drainage unit in the drainage system. The central control unit presets an allowable error power, which can flexibly adjust the gas supply power of the drainage mechanism. The central control unit expands the range of gas supply power that meets the drainage requirements of the drainage mechanism, thereby rationalizing the energy utilization rate of the drainage system.

[0058] In particular, the present invention connects adjacent infiltration wells to discharge rainwater between them, preventing the water level in one infiltration well from becoming too high and causing the urban drainage system to collapse. When it is determined that rainwater should be discharged from the current infiltration well, the system determines to discharge water into a certain infiltration well based on the water level of the adjacent upper and lower infiltration wells, thereby reducing the pressure on the urban drainage system. Specifically, when the water level of the upper infiltration well is lower than that of the lower infiltration well, the central control unit determines to discharge water into the upper infiltration well.

[0059] In particular, the present invention connects adjacent seepage wells to mutually regulate the amount of rainwater in the seepage wells. This prevents the simultaneous operation of drainage mechanisms in several seepage wells when the drainage volume is large, thus avoiding excessive drainage pressure on any one seepage well and resulting in an unreasonable distribution of drainage volume among the seepage wells. Specifically, the central control unit determines the air supply power of the drainage mechanism currently in operation within the seepage pump based on the current water level change value per unit time in the seepage well, thereby achieving the effect of mutual adjustment of drainage volume among the seepage wells.

[0060] In particular, the central control unit of this invention performs negative feedback adjustment on the current seepage well based on the water level of the target seepage well, preventing the collapse of the rainwater holding capacity within the target seepage well. The central control unit adjusts the air supply power of the air pumps in each seepage well, enabling each drainage unit within the drainage system to independently allocate its drainage volume, thus maximizing the dynamic balance of drainage volume across all seepage wells in the entire drainage system. Attached Figure Description

[0061] Figure 1 This is a schematic diagram of the drainage system according to an embodiment of the invention;

[0062] Figure 2This is a schematic diagram of the drainage mechanism structure according to an embodiment of the invention;

[0063] Figure 3 This is a schematic diagram of the self-decomposition structure of the drainage mechanism in an embodiment of the invention. Detailed Implementation

[0064] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0065] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0066] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0067] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] This invention is a highly efficient and energy-saving water conservancy engineering drainage system, which can be used as a temporary peak-shaving drainage device for areas of urban roads where water cannot be discharged. It solves the problem that the hard paving of urban roads isolates the channels for rainwater infiltration, causing water accumulation in some low-lying areas. This invention can work when there is a large amount of rainwater stagnating on urban roads to carry out temporary drainage.

[0069] Please see Figure 1 As shown in the schematic diagram of the drainage system of this invention, the high-efficiency and energy-saving water conservancy drainage system includes several drainage devices, each connected to the others via drainage pipelines in the drainage mechanisms of each seepage well. The drainage devices include:

[0070] Rainwater well 1 is installed on both sides of urban roads to collect rainwater;

[0071] The diversion pipe 2 is used to connect the rainwater well 1 and the seepage well 3;

[0072] The seepage well 3 is used to seep rainwater into groundwater. The seepage well includes a drainage mechanism 4 for draining water to the seepage well of an adjacent drainage device. The drainage mechanism includes a bottom mechanism for supporting a water pump and an air pump, an air pump located above the bottom mechanism for providing kinetic energy to the water pump, and a water pump located above the bottom mechanism and connected to the air pump. The drainage mechanism drives the impeller in the water pump to rotate through the air pump to discharge the rainwater in the seepage well through the drainage pipeline 5.

[0073] The central control unit (not shown in the figure) is used to determine the target seepage well for drainage of the current drainage device based on the water level height of the seepage well in each of the drainage devices. The central control unit determines the start-up amount of the drainage mechanism and the air supply power of the drainage mechanism based on the current water level height of the seepage well, and adjusts the air supply power of the current seepage well air supply device based on the water level height of the target seepage well and the change in water level height after a preset drainage time, so as to make urban road drainage meet the preset standards.

[0074] Specifically, the drainage mechanism connects adjacent seepage wells, enabling each drainage device to be interconnected to form a flood control system. The system can automatically adjust the target drainage devices that need to allocate rainwater. The central control unit presets the standard value of water level in each seepage well and the change in water level per unit time, which can reasonably allocate the drainage volume undertaken by each seepage well and effectively utilize the self-circulation feature of the flood control system to achieve dynamic balance of drainage volume among the drainage devices within the system.

[0075] Please see Figure 2 As shown, it is a schematic diagram of the drainage mechanism structure of an embodiment of the present invention, including a bottom mechanism 51 for supporting a water pump 52 and an air pump 53, an air pump disposed above the bottom mechanism for providing kinetic energy to the water pump, and a water pump disposed above the bottom mechanism and connected to the air pump. The drainage mechanism drives the water pump impeller inside the water pump to rotate through the air pump impeller inside the air pump to discharge rainwater in the seepage well through the drainage pipeline. When the drainage mechanism is started to drain the current seepage well, the air pump is started, and the air pump impeller inside the air pump drives the coaxial water pump impeller to rotate, so as to realize the water pump pumping operation.

[0076] Please continue reading. Figure 2 As shown, both the air pump 53 and the water pump 52 are provided with handle fixing points 551 on their surfaces. The handle fixing points 552 are connected to the handle ring and are used to move the drainage mechanism.

[0077] Please see Figure 3As shown, it is a self-disassembly schematic diagram of the drainage mechanism structure of an embodiment of the present invention, including the bottom mechanism 51, which includes a base 511, an air pump bracket 512 and a water pump bracket 513. The air pump bracket and the water pump bracket are arranged parallel to each other above the base to support the air pump body 531 and the water pump body 521.

[0078] Please continue reading. Figure 3 As shown, the air pump 53 includes the air pump body 531. The surface of the air pump body 531 is provided with an air pump inlet 532 and an air pump outlet 533. An air pump impeller 534 is provided inside the air pump body to convert air energy into kinetic energy. The right side of the air pump impeller is provided with an air pump side plate 535 connected to the surface of the air pump body 531 to close the air pump body.

[0079] Please continue reading. Figure 3 As shown, the water pump 52 includes a water pump body 521, a water pump inlet 522 is provided on the surface of the water pump body, a water pump impeller 523 is provided inside the water pump body to convert the kinetic energy provided by the air pump impeller 534 into potential energy, a water pump side plate 524 is provided on the left side of the water pump impeller and connected to the surface of the water pump body to close the water pump body, and a water pump outlet 525 is provided on the surface of the water pump side plate to discharge water to a designated seepage well;

[0080] Please continue reading. Figure 3 As shown, the connecting bearing 54 connects the air pump 53 and the water pump 52 to realize energy transfer. The air pump body 531 and the water pump body 521 are provided with sealed bearings 541 to fix the connecting bearing. The surface of the sealed bearing 541 is provided with maintenance points 542. The outer side of the sealed bearing is provided with a bearing sleeve 543 and a sealing ring 544 to fix the sealed bearing.

[0081] Please continue reading. Figure 1 As shown, the drainage device includes two drainage mechanisms. The first drainage mechanism 11 is connected to the seepage well of the previous drainage device via a first drainage pipeline 21. The second drainage mechanism 12, symmetrically arranged with the first drainage mechanism, is connected to the seepage well of the next drainage device via a second drainage pipeline 22. The central control unit presets a first standard value h1 for the seepage well water level. The central control unit compares the detected seepage well water level h with the preset first standard value h1 to control the drainage mechanism, thereby adjusting the water level in the seepage well.

[0082] When h≤h1, the central control unit determines that the current water level of the seepage well meets the preset standard, and the central control unit does not need to start the drainage mechanism.

[0083] When h > h1, the central control unit determines that the current water level of the seepage well does not meet the preset standard, and the central control unit needs to activate the drainage mechanism to assist the seepage well in draining water;

[0084] Specifically, the central control unit of this invention sets a standard value for the water level of the seepage well to determine whether the water level in the seepage well meets the standard, and further determines whether to activate the drainage mechanism to assist the seepage well in draining water, so as to avoid excessive drainage pressure at a certain inlet of the urban municipal stormwater pipe network, thereby reasonably adjusting the drainage volume of each inlet. Specifically, if the current water level in the seepage well is higher than the preset first standard value for the seepage well water level, the central control unit determines to activate the drainage mechanism in the current seepage well.

[0085] Each of the aforementioned seepage wells is equipped with two drainage mechanisms. The first drainage mechanism A1 is connected to the previous seepage well, and the second drainage mechanism A2 is connected to the next seepage well. The central control unit determines the activation level of the drainage mechanism by comparing the current water level h of the seepage well with a preset second standard value h2 for the seepage well water level.

[0086] When h1 < h < h2, the central control unit determines to start a drainage mechanism. The central control unit determines the target seepage well for drainage of the current seepage well based on the water level height of the previous seepage well and the water level height of the next seepage well.

[0087] When h≥h2, the central control unit determines to activate two drainage mechanisms to discharge the rainwater in the current seepage well into the next and next seepage wells;

[0088] Specifically, the central control unit of this invention sets a second standard value for the water level of the seepage well to determine whether the current water level in the seepage well exceeds the predicted water capacity of the seepage well, and further determines the number of drainage mechanisms to be activated, so as to avoid insufficient drainage volume of the current seepage well per unit time and achieve efficient drainage. Specifically, if the current water level of the seepage well is lower than the preset second standard value for the seepage well water level, it means that the water volume in the current seepage well does not exceed the predicted water capacity. The central control unit determines the target seepage well for drainage of the current seepage well based on the water level height of the previous seepage well and the water level height of the next seepage well, and activates the drainage mechanism to drain water to the target seepage well. If the current water level of the seepage well is higher than the preset second standard value for the seepage well water level, it means that the water volume in the current seepage well exceeds the predicted water capacity. The central control unit determines to activate two drainage mechanisms to discharge the rainwater in the current seepage well into the previous seepage well and the next seepage well.

[0089] Specifically, in this embodiment of the invention, the target seepage well for the current seepage well to drain water is the previous seepage well or the next seepage well.

[0090] The central control unit selects the current air supply power of the seepage well drainage mechanism based on the activation level of the target seepage well drainage mechanism.

[0091] When the activation amount of the drainage mechanism of the target seepage well is 2, the central control unit selects the first preset air supply power P1 as the air supply power of each drainage mechanism of the current seepage well.

[0092] When the activation amount of the drainage mechanism of the target seepage well is 1, the central control unit selects the second preset air supply power P2 as the air supply power of each drainage mechanism of the current seepage well;

[0093] When the activation amount of the drainage mechanism of the target seepage well is 0, the central control unit selects the third preset air supply power P3 as the air supply power of each drainage mechanism of the current seepage well.

[0094] The central control unit has a preset gas supply power P, and sets a first preset gas supply power P1, a second preset gas supply power P2, and a third preset gas supply power P3.

[0095] Specifically, this invention preliminarily determines the air supply power of the drainage mechanism within the target seepage well based on its activation level. This avoids allocating excessive drainage capacity to a single seepage well, which could reduce the overall drainage efficiency of the drainage system. The central control unit of this invention sets a first preset air supply power, a second preset air supply power, and a third preset air supply power. This allows the central control unit to accurately adjust the air supply power of the drainage mechanism within a short time based on the actual application of the system, achieving energy-saving and high-efficiency results.

[0096] When the central control unit determines that the activation level of the drainage mechanism of the current seepage well is 2, the central control unit sets the drainage mechanism of the current seepage well connected to the i-th target seepage well as Ai, where i = 1, 2. The central control unit adjusts the air supply power of the drainage mechanism Ai according to the change in water level height per unit time Δh in the current seepage well.

[0097] When △h < △h1, the central control unit determines that it will not adjust the air supply power of the drainage mechanism of the current seepage well;

[0098] When △h1<△h<△h2, the central control unit determines to increase the air supply power P1 of the drainage mechanism Ai to P11, and sets P11=P1×(1+(△h2-△h)×(△h-△h1) / (△h1×△h2));

[0099] When △h≥△h2, the central control unit increases the air supply power P1 of the drainage mechanism Ai to P12, and sets P12=P1×(1+(△h-△h2) / △h2);

[0100] The central control unit presets Δh1 as the first standard value of water level change per unit time and Δh2 as the second standard value of water level change per unit time.

[0101] Specifically, the central control unit of this invention presets a first standard value and a second standard value for the change in water level height per unit time as reference parameters. This allows the central control unit to accurately determine the change in water level height in the seepage well per unit time, and thus adjust the air supply power of the drainage mechanism in real time according to the drainage situation in the well, ensuring that it meets the drainage requirements. The central control unit's timely adjustment of the air supply power of the drainage mechanism based on the real-time drainage situation in the well achieves energy-saving and environmentally friendly effects.

[0102] The central control unit obtains that the change in water level in the current seepage well per unit time is greater than or equal to a preset second standard value for water level change. The central control unit compares the adjusted air supply power P12 of the drainage mechanism Ai with the drainage mechanism power Px used to inject water from the target seepage well to the current seepage well, and adjusts the air supply power of the drainage mechanism Ai accordingly.

[0103] When P12 > Px + △Pu, the central control unit does not adjust the gas supply power of the adjusted drainage mechanism Ai;

[0104] When P12≤Px+△Pu, the central control unit increases the gas supply power of the adjusted drainage mechanism Ai to P121, and sets P121=Px×1.5;

[0105] The central control unit presets ΔPu as the allowable error.

[0106] Specifically, the central control unit of this invention uses the change in water level in the current seepage well per unit time as a parameter for adjusting the gas supply power. This ensures that the current amount of rainwater in the seepage well does not exceed the predicted capacity, preventing the collapse of the rainwater holding function of a certain drainage unit in the drainage system. The central control unit presets an allowable error power, which can flexibly adjust the gas supply power of the drainage mechanism. The central control unit expands the range of gas supply power that meets the drainage requirements of the drainage mechanism, thus rationalizing the energy utilization rate of the drainage system.

[0107] When the central control unit determines to activate a drainage mechanism, it compares the water level height hs1 of the previous seepage well with the water level height hx1 of the next seepage well to select the target seepage well for drainage.

[0108] When hs1 < hx1, the central control unit determines to discharge the water from the current seepage well to the next seepage well;

[0109] When hs1 > hx1, the central control unit determines to discharge the water from the current seepage well to the next seepage well;

[0110] Specifically, the present invention connects adjacent infiltration wells to discharge rainwater between them, preventing the water level in one infiltration well from becoming too high and causing the urban drainage system to collapse. When it is determined that rainwater should be discharged from the current infiltration well, the system determines to discharge water into a certain infiltration well based on the water level of the adjacent upper and lower infiltration wells, thereby reducing the pressure on the urban drainage system. Specifically, when the water level of the upper infiltration well is lower than that of the lower infiltration well, the central control unit determines to discharge water into the upper infiltration well.

[0111] When the central control unit determines to activate a drainage mechanism, it sets the target seepage well as B and the power of the drainage mechanism injecting water from the current seepage well to the target seepage well as P2. The central control unit adjusts the air supply power of the drainage mechanism according to the change in water level height Δh in the current seepage well per unit time.

[0112] When △h < 0, the central control unit is set not to adjust the gas supply power of the drainage mechanism in the current seepage well;

[0113] When △h≥0, the central control unit adjusts the air supply power of the drainage mechanism in the current seepage well to P21, where P21=∑Py×1.3;

[0114] Where ∑Py is the total power of the drainage mechanism that drains water to the current seepage well.

[0115] Specifically, in this embodiment of the invention, the total power of the drainage mechanism that drains water to the current seepage well is the sum of the air supply power of the drainage mechanisms that drain water from the previous seepage well and the next seepage well to the current seepage well.

[0116] Specifically, this invention connects adjacent seepage wells to mutually regulate the amount of rainwater in each well. This prevents excessive drainage pressure on any single well when multiple wells operate simultaneously, leading to an unreasonable distribution of drainage volume among them, especially when the drainage volume is high. The central control unit determines the air supply power of the currently operating drainage mechanism within the seepage pump based on the current water level change value per unit time in each seepage well, thereby achieving the effect of mutual adjustment of drainage volume among the seepage wells.

[0117] After a preset time, the central control unit acquires the water level height Hk of the target seepage wells, k = 1, 2. The central control unit compares the water level height Hk of each target seepage well with the standard value H0k of the target seepage well water level height, and adjusts the air supply power Pa of the current seepage well drainage mechanism.

[0118] If Hk < H0k, the central control unit determines that the power of the drainage mechanism of the current seepage well is qualified;

[0119] Hk > H0k, the difference between the water level height Hk of each target seepage well and the standard value H0k of the target seepage well is used to determine whether to adjust the power of the drainage mechanism of the current seepage well;

[0120] The central control unit presets the target seepage well water level height standard value as H0k.

[0121] The central control unit determines whether to adjust the drainage mechanism power of the current seepage well based on the difference between the water level height Hk of each target seepage well and the standard value H0k of the target seepage well's water level height, and the change in water level height ΔH of the target seepage well per unit time.

[0122] When 0 < Hk - H0k < ΔHk and ΔH < ΔH0, the central control unit determines that it will not adjust the gas supply power of the current seepage well drainage mechanism.

[0123] When 0 < Hk - H0k < △Hk, and △H ≥ △H0, the central control unit determines to reduce the gas supply power Pa of the current seepage well drainage mechanism, so that Pa1 = Pa × (1 - (Hk - H0k)(△Hk + H0k - Hk) / △Hk2);

[0124] When Hk-H0k>△Hk and △H<△H0, the central control unit determines to reduce the gas supply power Pa of the current seepage well drainage mechanism, so that Pa1=Pa×(1-(△Hk+Hk-H0k) / △Hk);

[0125] When Hk-H0k>△Hk and △H>△H0, the central control unit determines that the current seepage well drainage mechanism stops working until Hk<H0k, at which point the central control unit determines that the previous seepage well drainage mechanism resumes working.

[0126] The central control unit presets the standard value of the allowable water level change of the target seepage well as △Hk, and the water level of the target seepage well per unit time is △H0.

[0127] Specifically, the central control unit of this invention performs negative feedback adjustment on the current seepage well based on the water level of the target seepage well, preventing the collapse of the rainwater holding capacity within the target seepage well. The central control unit adjusts the air supply power of the air pumps in each seepage well, enabling each drainage unit within the drainage system to independently allocate its drainage volume, thus maximizing the dynamic balance of drainage volume across all seepage wells in the entire drainage system.

[0128] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A high-efficiency and energy-saving drainage system for water conservancy projects, characterized in that, include: Several drainage devices are connected to each other via drainage pipelines in the drainage mechanisms of each seepage well. The drainage devices include: Rainwater wells are installed on both sides of urban roads to collect rainwater; The diversion pipe is used to connect the rainwater well and the seepage well; The seepage well is used to seep rainwater into groundwater. The seepage well includes a drainage mechanism for draining water into the seepage well of an adjacent drainage device. The drainage mechanism includes a bottom mechanism for supporting a water pump and an air pump, an air pump located above the bottom mechanism for providing kinetic energy to the water pump, and a water pump located above the bottom mechanism and connected to the air pump. The drainage mechanism drives the impeller in the water pump to rotate through the air pump, thereby discharging the rainwater in the seepage well through the drainage pipeline. The central control unit, which is connected to the drainage mechanism, is used to determine the target seepage well for drainage of the current drainage device based on the water level of the seepage well in each drainage device. The central control unit determines the start-up amount and air supply power of the drainage mechanism based on the current water level of the seepage well, and adjusts the air supply power of the drainage mechanism of the current seepage well based on the water level of the target seepage well and the change in water level after a preset drainage time, so as to make urban road drainage meet the preset standards. The central control unit presets a first standard value h1 for the water level in the seepage well. The central control unit compares the detected water level h in the seepage well with the preset first standard value h1 to determine whether to activate the drainage mechanism, thereby adjusting the water level in the seepage well. When h≤h1, the central control unit determines that the current water level of the seepage well meets the preset standard; When h > h1, the central control unit determines that the current water level of the seepage well does not meet the preset standard, and the central control unit determines to start the drainage mechanism to assist the seepage well in draining water; Each of the aforementioned seepage wells is equipped with two drainage mechanisms. The first drainage mechanism A1 is connected to the previous seepage well, and the second drainage mechanism A2 is connected to the next seepage well. The central control unit determines the activation level of the drainage mechanism by comparing the current water level h of the seepage well with a preset second standard value h2 for the seepage well water level. When h1 < h < h2, the central control unit determines to start a drainage mechanism. The central control unit determines the target seepage well for drainage of the current seepage well based on the water level height of the previous seepage well and the water level height of the next seepage well. When h≥h2, the central control unit determines to activate two drainage mechanisms to discharge the rainwater in the current seepage well into the next and next seepage wells; The central control unit selects the current air supply power of the seepage well drainage mechanism based on the activation level of the target seepage well drainage mechanism. When the activation quantity of the drainage mechanism of the target seepage well is 2, the central control unit selects the first preset air supply power P1 as the air supply power of each drainage mechanism of the current seepage well; When the activation amount of the drainage mechanism of the target seepage well is 1, the central control unit selects the second preset air supply power P2 as the air supply power of each drainage mechanism of the current seepage well; When the activation amount of the drainage mechanism of the target seepage well is 0, the central control unit selects the third preset air supply power P3 as the air supply power of each drainage mechanism of the current seepage well. The central control unit has a preset gas supply power P, and sets a first preset gas supply power P1, a second preset gas supply power P2, and a third preset gas supply power P3.

2. The high-efficiency and energy-saving water conservancy drainage system according to claim 1, characterized in that, When the central control unit determines that the activation level of the drainage mechanism of the current seepage well is 2, the central control unit sets the drainage mechanism of the current seepage well connected to the i-th target seepage well as Ai, where i = 1, 2. The central control unit adjusts the air supply power of the drainage mechanism Ai according to the change in water level height per unit time Δh in the current seepage well. When △h < △h1, the central control unit determines that it will not adjust the air supply power of the drainage mechanism of the current seepage well; When △h1<△h<△h2, the central control unit determines to increase the air supply power P1 of the drainage mechanism Ai to P11, and sets P11=P1×(1+(△h2-△h)×(△h-△h1) / (△h1×△h2)); When △h≥△h2, the central control unit increases the air supply power P1 of the drainage mechanism Ai to P12, and sets P12=P1×(1+(△h-△h2) / △h2); The central control unit presets Δh1 as the first standard value of water level change per unit time and Δh2 as the second standard value of water level change per unit time.

3. The high-efficiency and energy-saving water conservancy drainage system according to claim 2, characterized in that, The central control unit obtains that the change in water level in the current seepage well per unit time is greater than or equal to a preset second standard value for water level change. The central control unit compares the adjusted air supply power P12 of the drainage mechanism Ai with the drainage mechanism power Px used to inject water from the target seepage well to the current seepage well, and adjusts the air supply power of the drainage mechanism Ai accordingly. When P12 > Px + △Pu, the central control unit does not adjust the air supply power of the drainage mechanism Ai after adjustment; When P12≤Px+△Pu, the central control unit increases the gas supply power of the adjusted drainage mechanism Ai to P121, and sets P121=Px×1.5; The central control unit presets ΔPu as the allowable error.

4. The high-efficiency and energy-saving water conservancy drainage system according to claim 1, characterized in that, When the central control unit determines to activate a drainage mechanism, it compares the water level height hs1 of the previous seepage well with the water level height hx1 of the next seepage well to select the target seepage well for drainage. When hs1 < hx1, the central control unit determines to discharge the water from the current seepage well to the next seepage well; When hs1 > hx1, the central control unit determines to discharge the water from the current seepage well to the next seepage well.

5. The high-efficiency and energy-saving water conservancy drainage system according to claim 4, characterized in that, When the central control unit determines to activate a drainage mechanism, it sets the power of the drainage mechanism injecting water from the current seepage well to the target seepage well to P2. The central control unit adjusts the air supply power of the drainage mechanism according to the change in water level height Δh within the current seepage well per unit time. When △h < 0, the central control unit is set not to adjust the gas supply power of the drainage mechanism in the current seepage well; When △h≥0, the central control unit adjusts the air supply power of the drainage mechanism in the current seepage well to P21, where P21=∑Py×1.3; and ∑Py is the total power of the drainage mechanism that drains water to the current seepage well.

6. The high-efficiency and energy-saving water conservancy drainage system according to claim 5, characterized in that, After a preset time, the central control unit acquires the water level height Hk of the target seepage wells, k=1,2, where H1 is the water level height of the first target seepage well and H2 is the water level height of the second target seepage well. It then compares the water level height of each target seepage well with the standard value H0k of the target seepage well water level height and adjusts the air supply power Pa of each drainage mechanism of the current seepage well. If Hk < H0k, the central control unit determines that the power of the drainage mechanism of the current seepage well is qualified; When Hk > H0k, the central control unit determines whether to adjust the power of the drainage mechanism of the current seepage well based on the rate of change of the target seepage well water level height.

7. The high-efficiency and energy-saving water conservancy engineering drainage system according to claim 6, characterized in that, The central control unit determines whether to adjust the drainage mechanism power of the current seepage well based on the difference between the water level height Hk of each target seepage well and the standard value H0k of the target seepage well's water level height, and the change in water level height ΔH of the target seepage well per unit time. When 0 < Hk - H0k < ΔHk and ΔH < ΔH0, the central control unit determines that it will not adjust the gas supply power of the current seepage well drainage mechanism. When 0 < Hk - H0k < ΔHk, and ΔH ≥ ΔH0, the central control unit determines to reduce the gas supply power Pa of the current seepage well drainage mechanism, such that Pa1 = Pa × (1 - (Hk - H0k)(ΔHk + H0k - Hk) / ΔHk²); When Hk-H0k>△Hk and △H<△H0, the central control unit determines to reduce the gas supply power Pa of the current seepage well drainage mechanism, so that Pa1=Pa×(1-(△Hk+Hk-H0k) / △Hk); When Hk-H0k>△Hk and △H>△H0, the central control unit determines that the current seepage well drainage mechanism stops working until Hk<H0k, at which point the central control unit determines that the previous seepage well drainage mechanism resumes working. The central control unit presets the standard value of the allowable water level change of the target seepage well as △Hk, and the water level of the target seepage well per unit time is △H0.

Images