A rainfall runoff collection and response system for an open pond of haematococcus

Abstract

This invention relates to the field of Haematococcus pluvialis cultivation technology, specifically to a rainwater runoff collection and management system for an open Haematococcus pluvialis pond. The system includes a canopy, and several water collection mechanisms arranged side-by-side on both sides of the open pond. Each water collection mechanism includes a water collection pipe located at the bottom of the sloping surface of the canopy, a diversion pipe connected in the middle of the water collection pipe, and a water storage tank connected at the bottom of the diversion pipe. This invention achieves a normally closed seal of the water collection pipe by using an arc-shaped drain rod driven by a float to block the water collection trough, ensuring the quality of collected rainwater from the source. By using a diversion ball valve with a three-way diversion channel driven by a servo motor, combined with a water quality monitoring unit and a control unit, real-time judgment and diversion of water quality are achieved. This results in the automatic discharge of heavily polluted initial rainwater and the collection of only high-quality mid-to-late-stage rainwater, significantly improving the quality of recycled water resources.

Description

Technical Field

[0001] This invention relates to the field of Haematococcus pluvialis cultivation technology, specifically to a rainfall runoff collection and response system for an open Haematococcus pluvialis pond. Background Technology

[0002] As a microalga with high economic value, *Hylococcus pluvialis* is highly susceptible to the impact of rainfall in its outdoor open-pond cultivation. Rainfall brings multiple hazards: First, large amounts of rainwater directly enter the cultivation pond, diluting the algal solution, reducing nutrient concentration, and disrupting the stable growth environment; second, rainwater runoff carries pollutants such as dust, leaves, and bird droppings into the pond, causing biological pollution; third, sudden changes in water temperature can disrupt the normal physiological activities of *Hylococcus pluvialis*, affecting its growth and astaxanthin accumulation.

[0003] Patent application CN201410542662.1 discloses an ecological vegetated swale for urban areas with abundant water resources. Located on one side of a pedestrian walkway, the swale comprises, from top to bottom, a vegetation layer, a planting soil layer, a brick block layer, a drainage pipe, and a gravel layer. This ecological vegetated swale, placed on one side of a pedestrian walkway, collects rainwater runoff from the walkway, reducing pollutants in the runoff and achieving on-site purification and control of runoff pollution. Located between the pedestrian walkway and green space, it does not affect the landscape and facilitates construction. Rainwater runoff is trapped in the gravel layer, gradually and slowly infiltrating, ultimately replenishing the soil moisture content of the green space, achieving complete absorption and purification of rainwater runoff while reducing irrigation water usage. The lower end of the drainage pipe connects to a storm drain or storm well, while the other end is closed, facilitating the collection of rainwater runoff from the pedestrian walkway into the storm drain or storm well, thereby reducing rainwater runoff and delaying flood peaks.

[0004] Existing patents focus on treating rainfall by using structures such as vegetation layers, brickwork layers, and gravel layers to purify, infiltrate, and retain rainwater runoff on-site, ultimately replenishing the soil moisture content of green spaces or draining it into stormwater wells. This solution is a surface ecological ditch structure, which cannot be applied to the area above or around open ponds containing *Alternaria lobata* for active interception and collection; finally, it completely lacks the ability to intelligently assess water quality and coordinate with the required diversion capabilities.

[0005] Therefore, there is a lack of existing technologies for a system specifically designed for open ponds of *Rhodotorula glutinis* that can intelligently respond to rainfall hazards and achieve efficient utilization of rainwater resources. Summary of the Invention

[0006] In order to overcome the defects in the prior art, the present invention aims to provide a rainwater runoff collection and response system for an open pond of *Rhodophyta pulmonata*. By setting up a diversion ball valve driven by a servo motor and having a special three-way diversion channel inside, and combining it with a water quality monitoring unit and a control unit, the system completes real-time judgment and diversion of water quality, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides a rainfall runoff collection and response system for an open pond of *Rhodophyta pulmonata*, comprising an A-shaped canopy above the open pond, and several water collection mechanisms arranged side by side on both sides of the open pond to support the canopy and receive the rainfall runoff from the canopy; the water collection mechanism includes a water collection pipe located at the bottom of the sloping surface of the canopy, a diversion pipe connected in the middle of the water collection pipe, and a water storage tank connected at the bottom of the diversion pipe; the water collection pipe is arranged horizontally and has a water collection area at its intersection with the canopy, and water collection troughs are symmetrically opened on the side of the water collection pipe facing the water collection area; The top of the drainage tube is fitted with a three-way branch pipe, and a branch ball valve is fitted at the junction of the three-way branch pipe. The ball valve is driven to rotate by a servo motor. The interior of the branch ball valve has a branch channel with a three-way hole at its center. The branch channel is set to correspond to the three-way pipe inside the branch tube. The top of the diversion pipe is equipped with a water quality monitoring unit and a control unit. The control unit controls the servo motor to drive the diversion ball valve to rotate according to the water quality parameters fed back by the water quality monitoring unit, so as to discharge rainwater that does not meet the preset water quality standards and then divert the rainwater that meets the preset water quality standards to the water storage tank for storage.

[0008] As a further improvement to this technical solution, the water quality monitoring unit is a turbidity sensor and is connected to the control unit. A water pump is installed at the bottom of the water storage tank, and a water level sensor is installed on the inner wall of the top of the open pool and is connected to the control unit. Based on the feedback from the water level sensor, the control unit controls the water pump to pump the rainwater collected in the water storage tank into the open pool.

[0009] As a further improvement to this technical solution, a pair of drain rods are fitted and rotated on the inner wall of the water collection pipe. The drain rods are arc-shaped and larger than the size of the water collection tank. A float is provided on the bottom edge of the drain rod, and the float is engaged and slidably connected to the water collection tank.

[0010] As a further improvement to this technical solution, a filter section is provided on the outside of the water collection pipe. The filter section includes a pair of claw rods placed in the water collection area, a double-headed motor placed on the outer wall of the water collection pipe away from the water collection area, and several gears coaxially connected to the double-headed motor.

[0011] As a further improvement to this technical solution, the claw rod consists of a long shaft and several claws fixedly mounted on it. The two ends of the long shaft of the claw rod are fixedly provided with retaining rings. The retaining rings are open circular rings that engage with and rotate with the water collection pipe. The outer wall of the retaining rings is provided with a semi-circular toothed ring that meshes with a gear.

[0012] As a further improvement to this technical solution, the upper half of the diversion pipe is fitted with a water-collecting cylinder. The inner diameter of the water-collecting cylinder is equal to the inner diameter of the outer port of the diversion channel. The diversion channel is a three-way hole formed by connecting a long channel and a short channel. The long channel is arc-shaped and runs through the center of the upper and lower surfaces of the diversion ball valve. The short channel is vertically connected to the concave arc of the long channel.

[0013] As a further improvement to this technical solution, the ends of two adjacent water collection pipes are connected by a sleeve to form a beam for spreading out the awning. The middle part of the water collection pipe is fitted with a sleeve with a three-way pipe structure. The vertical section of the sleeve is fitted with the top of the diversion pipe. A through hole is opened on the bottom surface of the middle part of the water collection pipe.

[0014] As a further improvement to this technical solution, several pairs of sleeves are provided between the top of the water collection pipe and the middle layer side wall. Each pair of sleeves is distributed outside the water collection trough, and a support is inserted into each pair of sleeves to support the spread of the canopy.

[0015] As a further improvement to this technical solution, a sleeve is provided on the side wall of the water collection pipe and below the water collection trough. The length of the sleeve is greater than the length of the water collection trough. Several buckles are provided at equal intervals on the side wall of the drainage pipe. Several hanging buckles are provided at equal intervals on the bottom surface of the support frame. The canopy is pressed and spread out by inserting a long bar into the sleeve, several buckles and several hanging buckles.

[0016] As a further improvement to this technical solution, a protective cover is fixedly connected to the top surface of the sleeve. The two ends of the protective cover are aligned with the two ends of the water collection pipe to cover the dual-head motor and the drainage and filtration of debris.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The rainwater runoff collection and response system of this open pond for *Alternaria rubra* achieves normal sealing of the collection pipe by setting up an arc-shaped drain rod driven by a float to block the water collection tank. This achieves intelligent collection that can be "open when there is water and closed when there is no water" without the need for external energy input. It also effectively prevents mosquitoes from entering and laying eggs and avoids dust and debris from contaminating the collection system, thus ensuring the quality of collected rainwater from the source.

[0018] 2. The rainwater runoff collection and response system of the open pond of *Alternaria rubra* is equipped with a diversion ball valve with a three-way diversion channel inside, driven by a servo motor. Combined with a water quality monitoring unit and a control unit, it completes the real-time judgment and diversion of water quality, achieving the technical effect of automatically discharging heavily polluted first rainwater and collecting only high-quality mid-to-late rainwater, thereby significantly improving the quality of recycled water resources.

[0019] 3. The rainwater runoff collection and response system of the open pond of *Alternaria rubra* automatically grabs and cleans leaves and debris from the surface of the water collection area by setting up a filter section with claws and wire mesh driven by a dual-head motor and gears, thus achieving the technical effect of ensuring smooth water collection channels.

[0020] 4. The rainwater runoff collection and response system of the open pond of *Alternaria rubra* achieves rapid installation and fixation by pressing the canopy onto the water collection mechanism with long poles, while naturally forming an efficient water collection channel, thus achieving multiple technical effects such as simplifying the installation process and improving water collection efficiency. Attached Figure Description

[0021] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, will select various possible shapes and proportions to implement the invention according to specific circumstances.

[0022] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention; Figure 2 This is a schematic diagram of a partial assembly structure of the present invention; Figure 3 For the present invention Figure 2 Top view; Figure 4 For the present invention Figure 2 Side view; Figure 5 This is a schematic diagram of the assembly structure of the water collection mechanism of the present invention; Figure 6 This is a split view of the water collection pipe of the present invention; Figure 7 This is a schematic diagram of the assembly structure of the filter section of the present invention; Figure 8 This is an exploded view of the water collection mechanism of the present invention; Figure 9 This is a schematic diagram of the internal structure of the diversion tube of the present invention; The meanings of the labels in the diagram are as follows: 100. Rain shelter; 110. Water catchment area; 200. Water collection mechanism; 210. Water collection pipe; 211. Water collection trough; 212. Drain rod; 2121. Float rod; 213. Sleeve; 214. Sleeve base; 220. Drain pipe; 221. Pipe sleeve; 222. Buckle; 230. Water storage tank; 240. Filter section; 241. Claw rod; 2411. Snap ring; 242. Double-headed motor; 243. Gear; 250. Diverter pipe; 251. Diverter ball valve; 252. Diverter channel; 253. Water collection cylinder; 300. Support frame; 310. Hanging buckle; 400. Protective cover. Detailed Implementation

[0023] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art will conceive of any possible variations of the invention, all of which should be considered within the scope of the invention. The terms "installation" and "connection" should be interpreted broadly, referring to direct connection as well as indirect connection through an intermediate medium.

[0024] The terms "central axis," "vertical," "horizontal," "front," "rear," "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer" used herein to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of the invention, "a number" means two or more, unless otherwise explicitly specified.

[0025] Please see Figures 1-9 As shown, the present invention provides a rainfall runoff collection and response system for an open pond of *Rhodotorula pulmonale*, including a gable-shaped canopy 100 installed above the open pond, preferably covered with a transparent plastic film for rain collection; several water collection mechanisms 200 are arranged side by side on both sides of the open pond to support the canopy 100 and receive the rainfall runoff from the canopy 100; the water collection mechanism 200 includes a water collection pipe 210 installed at the bottom of the slope of the canopy 100, a diversion pipe 220 connected in the middle of the water collection pipe 210, and a water storage tank 230 connected at the bottom of the diversion pipe 220, the water storage tank 230 being buried underground to avoid occupying the external space of the open pond; the water collection pipe 210 is arranged horizontally and a water collection area 110 is provided at the intersection with the canopy 100, and a water collection trough 211 is symmetrically opened on the side of the water collection pipe 210 facing the water collection area 110; A pair of drain rods 212 are attached to the inner wall of the water collection pipe 210 and rotate. The drain rods 212 are arc-shaped and larger than the size of the water collection trough 211. This seals the water collection trough 211 under natural conditions, preventing mosquitoes from entering and laying eggs, which would affect the water quality. A float 2121 is provided at the bottom edge of the drain rod 212. The float 2121 is engaged and slides with the water collection trough 211. The float 2121 is made of plastic material with a density lower than water. After the water collection area 110 collects rainwater, the float 2121 floats up and drives the drain rod 212 to open the water collection trough 211, allowing rainwater to enter the water collection pipe 210 and then enter the water storage tank 230 through the drainage pipe 220 for collection.

[0026] Specifically, in order to enable the canopy 100 to be laid out quickly and stably, a sleeve 213 is provided on the side wall of the water collection pipe 210 and below the water collection trough 211. The length of the sleeve 213 is greater than the length of the water collection trough 211. Several buckles 222 are provided at equal intervals on the side wall of the drain pipe 220. Several hanging buckles 310 are provided at equal intervals on the bottom surface of the support frame 300. The longitudinal sections of the sleeve 213, the buckles 222 and the hanging buckles 310 are all C-shaped, so that the canopy 100 can be pressed and laid out by inserting the long bar into the sleeve 213, the buckles 222 and the hanging buckles 310. Thus, the water collection area 110 is formed at the point where the canopy 100 is pressed with the sleeve 213, which is used to collect rainwater and raise the drain rod 212 to automatically drain the water.

[0027] Furthermore, several pairs of sleeves 214 are provided between the top of the water collection pipe 210 and the middle side wall. Each pair of sleeves 214 is distributed outside the water collection trough 211. Each pair of sleeves 214 is connected to a support 300 for supporting the spread of the canopy 100. Since the root of the support 300 is higher than the position of the sleeve 213, when the canopy is fixed from the support 300 to the water collection pipe 210, a low-lying state is formed in the water collection area 110, which is conducive to the concentrated flow of rainwater to the water collection trough 211.

[0028] Specifically, in order to improve the quality of rainwater collection, a diversion pipe 250 in the shape of a three-way pipe is embedded at the top of the diversion pipe 220. A diversion ball valve 251 is embedded at the intersection of the three-way pipes of the diversion pipe 250. The ball valve 251 is driven to rotate by a servo motor. A diversion channel 252 in the shape of a three-way hole is opened in the center of the diversion ball valve 251. The diversion channel 252 is set to correspond to the three-way pipe inside the diversion pipe 250.

[0029] The top of the diversion pipe 220 is equipped with a water quality monitoring unit and a control unit. The control unit controls the servo motor to drive the diversion ball valve 251 to rotate according to the water quality parameters fed back by the water quality monitoring unit, so as to discharge rainwater that does not meet the preset water quality standards and then divert the rainwater that meets the preset water quality standards to the water storage tank 230 for storage.

[0030] The water quality monitoring unit is a turbidity sensor and is connected to the control unit. A water pump is installed at the bottom of the water storage tank 230, and a water level sensor is installed on the inner wall of the top of the open pool and is connected to the control unit. Based on the feedback from the water level sensor, the control unit controls the water pump to pump the rainwater collected in the water storage tank 230 into the open pool.

[0031] Furthermore, such as Figure 9 As shown, a water-collecting cylinder 253 is fitted onto the upper half of the diversion pipe 250. The inner diameter of the water-collecting cylinder 253 is equal to the inner diameter of the outer port of the diversion channel 252, so that rainwater entering the diversion pipe 250 can be introduced into the diversion channel 252 through the water-collecting cylinder 253. The diversion channel 252 is a three-way connection formed by a long channel and a short channel. The long channel is arc-shaped and runs through the center of the upper and lower surfaces of the diversion ball valve 251. The short channel is vertically connected to the concave arc of the long channel. The arc shape of the long channel allows the rainwater falling in to be preferentially guided to the lower port for discharge along its slope, avoiding it from flowing into the horizontal short channel and being discharged.

[0032] Furthermore, the ends of two adjacent water collection pipes 210 are connected by a sleeve to form a beam for spreading out the awning. A sleeve 221 with a three-way pipe structure is fitted in the middle of the water collection pipe 210. The vertical section of the sleeve 221 is fitted with the top of the diversion pipe 250. A through hole is opened on the bottom surface of the middle part of the water collection pipe 210.

[0033] Specifically, in order to prevent leaves and other debris from clogging the water collection area 110, a filter section 240 is provided on the outside of the water collection pipe 210. The filter section 240 includes a pair of claw rods 241 placed in the water collection area 110, a double-headed motor 242 placed in the water collection pipe 210 away from the outer wall of the water collection area 110, and several gears 243 coaxially connected to the double-headed motor 242. The double-headed motor 242 drives the gears 243 to rotate the claw rods 241, thereby cleaning the leaves and other debris from the water collection area 110.

[0034] Furthermore, such as Figure 7 As shown, the claw rod 241 consists of a long shaft and several claws fixedly mounted on it. At least two claws are deployed to grip debris. In addition, each of the claws forms a row covered with wire mesh, thus forming a lifting shape to intercept and collect particulate debris. The long shaft of the claw rod 241 is fixed with a retaining ring 2411 at both ends. The retaining ring 2411 is an open ring that engages with and rotates with the water collection pipe 210. The outer wall of the retaining ring 2411 is provided with a semi-circular toothed ring, which meshes with the gear 243. The gear 243 drives the retaining ring 2411 to rotate around the central axis of the water collection pipe 210, thereby rotating the claw rod 241 to the top of the water collection pipe 210 and dumping the debris out.

[0035] In addition, a protective cover 400 is fixedly connected to the top surface of the sleeve 221. The two ends of the protective cover 400 are aligned with the two ends of the water collection pipe 210 to cover the double-headed motor 242 from rain and to prevent debris from being dumped by the diversion claw rod 241.

[0036] In the rainwater runoff collection and response system of the open pond of *Alternaria rubra* of the present invention, when rainfall occurs, rainwater falls on the A-shaped canopy 100 and flows along the slope to the water collection area 110; in the initial stage, the drain rod 212 remains closed under its own weight, sealing the water collection trough 211 and preventing debris from entering.

[0037] As rainwater accumulates in the catchment area 110, the water level rises, and the float 2121, made of low-density plastic, floats upward under the action of buoyancy. The upward movement of the float 2121 causes the arc-shaped drain rod 212 connected to it to rotate around its axis, thereby opening the water collection trough 211. Rainwater then enters the water collection pipe 210 through the water collection trough 211.

[0038] Rainwater flowing into the collection pipe 210 flows downwards and collects through the diversion pipe 250 at the top of the diversion pipe 220. Here, a turbidity sensor monitors the rainwater quality in real time. The control unit receives the sensor signal: if it determines that the water quality is poor, such as at the beginning of rainfall, it controls the servo motor to drive the diversion ball valve 251 to rotate, so that the short channel opening of its diversion channel 252 faces upwards to drain the rainwater; if it determines that the water quality meets the standards, it controls the diversion ball valve 251 to rotate, so that the long channel opening faces upwards to connect with the pipe leading to the water storage tank 230 for collection and storage.

[0039] At the same time, the dual-head motor 242 is started periodically, and the claw rod 241 is driven by the gear 243 to flip up around the water collection pipe 210, so that the claw with wire mesh flips up above the water collection pipe 210, thereby grabbing the leaves and other debris accumulated in the water collection area 110, flipping them up above the protective cover 400 and then tilting them down to complete the automatic cleaning.

[0040] The clean rainwater collected in the water storage tank 230 can be pumped into the tank by the control unit based on the water shortage signal fed back by the water level sensor in the open pool on sunny days, so as to realize the recycling of water resources and precise water replenishment.

[0041] It should be noted that the fixed connections and fixing methods of the present invention are achieved using conventional fixing means such as bolt connections or welding. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A rainfall runoff collection and response system for an open pond of *Rhodophyta pulmonata*, comprising an A-shaped canopy installed above the open pond, characterized in that, Several water collection mechanisms are arranged side by side on both sides of the open pool to support the canopy and receive the rainwater runoff from the canopy. The water collection mechanism includes a water collection pipe located at the bottom of the sloping surface of the canopy, a diversion pipe connected in the middle of the water collection pipe, and a water storage tank connected at the bottom of the diversion pipe. The water collection pipe is arranged horizontally and a water collection area is provided at the intersection with the canopy. A water collection trough is symmetrically opened on the side of the water collection pipe facing the water collection area. The top of the drainage tube is fitted with a three-way branch pipe, and a branch ball valve is fitted at the junction of the three-way branch pipe. The ball valve is driven to rotate by a servo motor. The interior of the branch ball valve has a branch channel with a three-way hole at its center. The branch channel is set to correspond to the three-way pipe inside the branch tube. The top of the diversion pipe is equipped with a water quality monitoring unit and a control unit. The control unit controls the servo motor to drive the diversion ball valve to rotate according to the water quality parameters fed back by the water quality monitoring unit, so as to discharge rainwater that does not meet the preset water quality standards and then divert the rainwater that meets the preset water quality standards to the water storage tank for storage.

2. The rainwater runoff collection and response system for the open pond of *Rhodophyta pulmonata* according to claim 1, characterized in that: The water quality monitoring unit is a turbidity sensor and is connected to the control unit. A water pump is installed at the bottom of the water storage tank, and a water level sensor is installed on the inner wall of the top of the open pool and is connected to the control unit. Based on the feedback from the water level sensor, the control unit controls the water pump to pump the rainwater collected in the water storage tank into the open pool.

3. The rainwater runoff collection and response system for the open pond of *Rhodophyta pulmonata* according to claim 2, characterized in that: The inner wall of the water collection pipe is fitted with a pair of drain rods that rotate. The drain rods are arc-shaped and larger than the size of the water collection tank. The bottom edge of the drain rods is provided with float rods that are engaged and slide with the water collection tank.

4. The rainwater runoff collection and response system for the open pond of *Rhodophyta pulmonata* according to claim 3, characterized in that: The outside of the water collection pipe is provided with a filter section, which includes a pair of claw rods placed in the water collection area, a double-headed motor placed on the outer wall of the water collection pipe away from the water collection area, and several gears coaxially connected to the double-headed motor.

5. The rainwater runoff collection and response system for the open pond of *Rhodophyta pulmonata* according to claim 4, characterized in that: The claw rod consists of a long shaft and several claws fixedly mounted on it. The two ends of the long shaft of the claw rod are fixed with retaining rings. The retaining rings are open circular rings that engage with and rotate with the water collection pipe. The outer wall of the retaining rings is provided with a semi-circular toothed ring that meshes with a gear.

6. The rainwater runoff collection and response system for the open pond of *Rhodophyta pulmonata* according to claim 5, characterized in that: The upper half of the diversion pipe is fitted with a water-collecting cylinder. The inner diameter of the water-collecting cylinder is equal to the inner diameter of the outer port of the diversion channel. The diversion channel is a three-way hole formed by connecting a long channel and a short channel. The long channel is arc-shaped and runs through the center of the upper and lower surfaces of the diversion ball valve. The short channel is vertically connected to the concave arc of the long channel.

7. The rainwater runoff collection and response system for the open pond of *Rhodophyta pulmonata* according to claim 6, characterized in that: The ends of two adjacent water collection pipes are connected by a sleeve to form a beam for spreading out the awning. The middle of the water collection pipe is fitted with a sleeve with a three-way pipe structure. The vertical section of the sleeve is fitted with the top of the diversion pipe. A through hole is opened on the bottom surface of the middle of the water collection pipe.

8. The rainwater runoff collection and response system for the open pond of *Rhodophyta pulmonata* according to claim 7, characterized in that: Several pairs of sleeves are provided between the top of the water collection pipe and the middle side wall. Each pair of sleeves is distributed outside the water collection trough, and each pair of sleeves is connected to a support frame for supporting the spread of the canopy.

9. The rainwater runoff collection and response system for the open pond of *Rhodophyta pulmonata* according to claim 8, characterized in that: The side wall of the water collection pipe and below the water collection trough is provided with a retaining sleeve, the length of which is greater than the length of the water collection trough. The side wall of the drainage pipe is provided with several buckles at equal intervals. The bottom surface of the support frame is provided with several hanging buckles at equal intervals. The canopy is pressed and spread out by inserting a long bar into the retaining sleeve, several buckles and several hanging buckles.

10. The rainwater runoff collection and response system for the open pond of *Rhodophyta pulmonata* according to claim 9, characterized in that: A protective cover is fixedly connected to the top surface of the sleeve. The two ends of the protective cover are aligned with the two ends of the water collection pipe to cover the dual-head motor and the debris filter.

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