Wetland restoration and maintenance equipment

Abstract

The invention relates to the technical field of wetlands, in particular to wetland repairing and maintaining equipment which comprises a ship body, an algae collecting device and an ultrasonic algae inhibiting device. The algae collecting device is arranged on the ship body; the algae collecting device comprises a collecting chamber, a garbage bin and a collecting bin; a rotatable collecting piece in the collecting chamber is provided with an annularly-distributed intercepting net and is further provided with a clamping position switching mechanism, and the clamping position switching mechanism is composed of a cam on a rotating shaft and an elastic clamping piece on the ship body. The garbage bin and the collecting bin are sequentially communicated, and water enters the collecting chamber through the water inlet channel. The equipment adopts a three-section interception design, large sundries and tiny algae in water are separated through the interception net, when the sundries are accumulated to a certain amount, water flow impacts to enable the interception net to rotate, the clean interception net continues to work, the sundries enter the garbage bin, and the design effectively prevents blockage and ensures effective collection of the tiny algae.

Description

Technical Field

[0001] The present invention relates to the field of wetland technology, and in particular to wetland restoration and maintenance equipment. Background Art

[0002] Generally speaking, filamentous algae, as one of the important primary producers in wetland ecosystems, produce organic matter through photosynthesis, providing food and energy sources for other organisms, thereby maintaining the stability and diversity of the ecosystem. However, under suitable environmental conditions, filamentous algae often overgrow. Overgrown filamentous algae often physically entangle the stems and leaves of submerged plants in large quantities, affecting their physiological activities and causing the submerged vegetation to wither or even disappear; at the same time, overgrown filamentous algae will consume a large amount of dissolved oxygen in the water body, causing the water body to be hypoxic and affecting the survival of other aquatic organisms. In addition, they affect the sediment microbial community by secreting substances, destroying the ecological balance of the wetland. These hazards work together to gradually lose the original ecological function of the wetland, reduce biodiversity, deteriorate water quality, and ultimately lead to the degradation of the wetland ecosystem.

[0003] Although there are many different technologies for the treatment of filamentous algae, there are still some obvious shortcomings. Physical methods such as salvage, although effective in the short term, have high costs of manpower and material resources for long-term continuous investment. Chemical methods such as the use of algaecides, although they can effectively kill filamentous algae, may also cause poisoning to aquatic organisms and wetland environments, affecting the stability of the ecosystem. Ecological methods such as restoring wetland vegetation and optimizing wetland hydrological conditions, although they are beneficial to the recovery and stability of wetland ecosystems in the long run, are difficult to implement and require a long time to see obvious results. At the same time, the effectiveness of ecological methods is also affected by many factors, such as climate conditions, soil types, wetland vegetation types, etc., so multiple factors need to be considered comprehensively in practical applications. Therefore, a wetland restoration and maintenance plan is needed to effectively inhibit the excessive growth of algae, promptly remove dead algae from the water, and maintain the dynamic balance of the wetland ecosystem.

[0004] At present, the publication number CN118850269A provides a river garbage collection ship and method based on acoustic algae removal technology, including a hull, a garbage collection mechanism installed at the head of the hull, and a propulsion mechanism installed at the tail; a garbage conveying mechanism is installed behind the garbage collection mechanism, a collection bin is installed behind the garbage conveying mechanism, and a water quality detection and algae removal module is installed behind the collection bin; a power supply component is installed above the collection bin and the water quality detection and algae removal module; at least two cameras are installed in front of the hull, and the control system performs visual recognition through the images captured by the cameras and controls the propulsion mechanism to move forward along the planned path. This collection ship uses low-frequency ultrasonic algae removal technology to effectively prevent algae entanglement and thus achieve the cleaning of river garbage. However, during the collection process of filamentous algae, the collection boat uses blade cutting and garbage conveying mechanism to collect algae. This method has a better effect on the collection of larger algae. However, it is not suitable for the collection or removal of tiny floating algae floating or suspended in wetland water before the algae outbreak. Therefore, there is a need for a collection or algae removal device for tiny floating algae floating or suspended in wetland water to meet the daily needs of wetland restoration and maintenance and reduce the cost of algae removal maintenance. Summary of the invention

[0005] The purpose of the present invention is to provide a wetland restoration and maintenance equipment, so as to timely remove the excessive reproduction of tiny floating algae in the wetland water body, effectively inhibit the excessive growth of algae, so as to ensure the balance of the wetland ecosystem.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a wetland restoration and maintenance device, comprising a hull and an algae collecting device; the algae collecting device is arranged on the hull;

[0008] The algae collection device includes a collection chamber, a garbage bin and a collection bin; a collection piece is arranged in the collection chamber; the collection piece is rotatably connected to the collection chamber, the collection piece has a rotating shaft, and interception nets are distributed in an annular manner on the rotating shaft; a position switching mechanism is arranged on the rotating shaft, and the position switching mechanism includes a cam sleeved on the rotating shaft; a clamping piece for abutting or clamping with the cam is arranged on the hull, and the clamping piece is connected to the hull through an elastic piece; the garbage bin is arranged on the hull, the inlet end of the garbage bin is connected to the outlet end of the collection chamber, and a mesh plate is arranged at the outlet end of the garbage bin; the collection bin is arranged on the hull, the inlet end of the collection bin is connected to the outlet end of the garbage bin, and filter holes are arranged on the collection bin; wherein a water inlet channel is opened on the hull, the water inlet of the water inlet channel is opened on the outer wall of the hull, the water outlet of the water inlet channel is connected to the water inlet of the collection chamber, and the water inlet of the collection chamber corresponds to the interception net on one side of the collection piece. The collection bin intercepts and cleans the intercepted algae and dead algae to reduce their secondary pollution to the water body. The garbage bin is used to collect and intercept debris larger than the floating and scattered algae.

[0009] By setting up this wetland restoration and maintenance equipment, the fine floating algae that are in the cell germination stage or seedling stage, in the water body or floating, scattered in the water body can be better collected. That is, for the algae scattered in the water body, there may still be a lot of non-algae and larger debris in the water body. If they are directly intercepted by the filter plate and then enter the collection bin, because it is for the collection of fine scattered algae, the filter plate must have a larger mesh number. In this way, after a long time, the debris and algae are bound to clog the filter plate. In order to solve this problem, a three-stage interception method is adopted, namely, collection In the mode of the collection chamber in front, the garbage bin in the middle, and the collection bin in the back, when the water body with debris and floating algae enters the collection chamber, the water flow impacts the interception net on one side of the rotating shaft, which is used to intercept the debris and pass the algae. In this way, the larger debris can be temporarily stored in the collection chamber first, and the small algae can pass through the collection chamber. After the algae continue to pass through the garbage bin, they will eventually be intercepted by the collection bin. After a certain amount of debris is collected in the collection chamber, when the garbage in the collection chamber gradually accumulates and blocks the interception net, as the degree of blockage increases, the impact force of the water flow on the interception net gradually increases. When the impact force reaches a certain threshold, the impact force of the water flow is sufficient to overcome the friction and pressure between the clamp and the cam, so that the cam and the clamp are separated. At this time, the rotating shaft rotates under the action of the water flow, driving the clean interception net on the other side to rotate to the working position, thereby continuing to effectively intercept the debris in the water flow. At this time, the previously intercepted debris enters the garbage bin and is intercepted and collected by the garbage bin. In this way, through the three-stage interception method, the debris is separated from the tiny algae to be collected, so as to better collect the tiny floating algae in the water or floating or scattered in the water.

[0010] Furthermore, the protruding portion on the cam is a streamlined structure, so as to reduce the stress concentration between the clamp and the cam, and facilitate smoother switching of the interception net.

[0011] Furthermore, the water inlet channel includes a main channel and a branch channel; the water inlet of the water inlet channel is the water inlet of the main channel, and the water outlet of the main channel is connected to the reversing valve to connect the two branch channels; the collection chamber is provided with two parallel water inlets, and the two water inlets correspond to the interception nets on both sides of the rotating shaft. After the interception net on one side of the rotating shaft has been used for a long time, some algae or other small-sized debris will remain on the interception net. This scheme adopts the above design so that by switching the branch channel, the interception net is switched by the forward rotating shaft to change direction, and the rotating shaft is reversed, so that the residue on the interception net is recoiled by the impact of the water flow change, thereby cleaning the residue on the interception net, thereby ensuring that the interception net can be kept in a relatively clean state.

[0012] Furthermore, the protruding parts on the cam form protrusions, and there are at least three protrusions that are evenly distributed in the circumferential direction. The spaces between the protruding parts form card slots whose number corresponds to the number of interception nets; and the card parts are adapted to the card slots.

[0013] Furthermore, the protruding portion on the cam forms a protrusion, there are two protrusions and they are symmetrically distributed relative to the center of the rotating shaft, and the intercepting net is symmetrically distributed relative to the center of the rotating shaft; and the clamp is provided with a groove adapted to the protrusion.

[0014] Furthermore, the hull is a catamaran structure, which includes sub-hulls located on both sides, and the two sub-hulls are connected by a bridge; the water inlet channel and the collection chamber are arranged in the sub-hulls, and the collection bin is arranged in the bridge.

[0015] Furthermore, a bottom trough is provided on the bridge frame, and the collecting bin is detachably provided in the bottom trough; or / and a garbage bin mounting groove is provided on the sub-hull, and the garbage bin is detachably provided in the garbage bin mounting groove; filter holes are provided on the bottom surface and / or the side wall of the collecting bin, so that the liquid phase in the collecting bin can flow out of the collecting bin into the bottom trough through the filter holes.

[0016] Furthermore, a water circulation treatment device is also provided in the bridge frame, and the water circulation treatment device includes a filter chamber arranged in the bridge frame, and one or more filter elements are arranged in the filter chamber. The water inlet of the filter chamber is connected with the water outlet of the bottom tank. The filter chamber is used to filter the liquid phase sucked into the filter chamber and then discharge it from the hull.

[0017] Furthermore, the mesh size of the interception net is larger than the filter hole size; the mesh size of the interception net is equal to or larger than the mesh size on the mesh plate.

[0018] Furthermore, the wetland restoration and maintenance equipment also includes an ultrasonic algae inhibition device, which is arranged under the hull and is used to emit ultrasonic waves with a duration of 10 to 15 minutes to the water body; the ultrasonic algae inhibition device is an ultrasonic transmitter with a transmission frequency of 20 to 40 kHz.

[0019] Furthermore, the ultrasonic algae inhibition device comprises an algae online monitoring device and an ultrasonic transmitter; the ultrasonic algae inhibition device has an emission frequency of 20 to 40 kHz, preferably 20 kHz, 30 kHz and 40 kHz.

[0020] Furthermore, the algae online monitoring device includes a sensor module, and the sensor module includes any one or any combination of a chlorophyll fluorescence sensor, a turbidity sensor, a temperature sensor, a pH sensor, and a conductivity sensor.

[0021] The above-mentioned chlorophyll fluorescence sensor is used to detect the chlorophyll content in the water body. Algae contain chlorophyll, and the content of algae can be indirectly measured by detecting chlorophyll fluorescence. Turbidity sensors are used to measure the turbidity of water bodies. The large-scale reproduction of algae will cause the turbidity of water bodies to increase. Temperature sensors are used to monitor the temperature of water bodies, because temperature changes will affect the growth of algae. pH sensors are used to monitor the pH value of water bodies. Algae growth will affect the acidity and alkalinity of water bodies. Conductivity sensors are used to monitor the conductivity of water bodies. Changes in conductivity can reflect the concentration of dissolved salts and nutrients in water bodies.

[0022] The above-mentioned algae online monitoring device is provided with a data processing unit connected with the sensor module for processing the data collected by the sensor and performing data analysis and decision-making.

[0023] The ultrasonic algae inhibition device automatically selects the ultrasonic frequency and duration by online monitoring of algae content, and emits multi-frequency ultrasonic waves into the water body multiple times to destroy algae cells and enhance the inhibitory effect on various algae. The selected ultrasonic frequency and duration are more suitable for destroying algae cells, but the emission frequency and intensity are low, which has less impact on the wetland water ecosystem and environment.

[0024] The ultrasonic algae inhibition device comprises an algae online monitoring device and an ultrasonic transmitter. By online monitoring of algae content results, the ultrasonic frequency and duration are automatically selected, and multi-frequency ultrasonic waves are emitted into the water body multiple times to enhance the inhibitory effect on various algae.

[0025] Furthermore, the above-mentioned data processing unit is connected to the power system of the hull and the pump body, and is used to control the speed change of the power system and / or change the pump suction according to the data collected by the sensor module.

[0026] A wetland restoration and maintenance equipment of the present scheme is more suitable for collecting and killing filamentous algae in the daily restoration and maintenance process of wetlands through daily dynamic control, and continuously controlling the algae biomass in the wetland water body within an appropriate range, thereby strangling the algae outbreak in the wetland in the bud. Since the hull of the present invention is aimed at filamentous algae that are still in the cell germination stage or seedling stage, the hull can be set relatively smaller, with higher flexibility and a wider range of applicable water depths. In addition, compared with the algae removal by large-scale equipment after the algae outbreak, the algae removal of the present invention is through early prevention and control of the wetland, with lower algae removal costs and greater application potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a wetland restoration and maintenance device in an embodiment;

[0028] Figure 2 An exploded view of a main trunk of a wetland restoration and maintenance device in an embodiment;

[0029] Figure 3 A front view schematic diagram of a wetland restoration and maintenance device in an embodiment;

[0030] Figure 4 A rear view schematic diagram of a wetland restoration and maintenance device in an embodiment;

[0031] Figure 5 It is a schematic diagram of the internal chamber of a wetland restoration and maintenance device in the fourth embodiment;

[0032] Figure 6 A schematic diagram of a cam and a clamping member of a wetland restoration and maintenance device in Embodiment 4;

[0033] Figure 7 A schematic diagram of an internal chamber of a wetland restoration and maintenance device in Example 3;

[0034] Figure 8 A schematic diagram of a cam and a clamping member of a wetland restoration and maintenance device in Embodiment 3;

[0035] Fig. 9 A schematic diagram of water flow direction of a wetland restoration and maintenance device according to Embodiment 3;

[0036] In the figure:

[0037] Fig.10 It is a connection diagram of a data processing unit of a wetland restoration and maintenance equipment to control an ultrasonic algae inhibition device in an embodiment;

[0038] 100, hull; 110, sub-hull; 111, garbage bin installation slot; 120, bridge; 121, bottom tank;

[0039] 210, collecting chamber; 220, collecting member; 221, rotating shaft; 222, intercepting net; 223, cam; 224, clamping member; 225, protrusion;

[0040] 230, garbage bin; 231, mesh plate;

[0041] 240. Collection warehouse;

[0042] 250, water inlet channel; 251, main channel; 252, branch channel; 253, reversing valve;

[0043] 300, filter chamber; 310, filter element; 320, drain port;

[0044] 400. Ultrasonic algae inhibition device; 410. Online monitoring device;

[0045] 500, power system; 510, electric motor;

[0046] 600. data processing unit;

[0047] 700. Pump body. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0050] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0051] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0052] See also Figures 1 to 9 , Embodiment 1:

[0053] A wetland restoration and maintenance device includes a hull 100 and an algae collection device; the algae collection device is arranged on the hull 100; the hull 100 can be a small floating unmanned remote-controlled boat, which serves as the basic platform of the entire device, carries other components, and can move automatically on the wetland water surface. The hull 100 can be made of lightweight, corrosion-resistant materials (such as high-density polyethylene or fiberglass) to ensure the buoyancy and durability of the device on the water surface.

[0054] The power system of the hull 100 can be equipped with an electric or solar drive system, including a battery and an electric motor 510, which is used to drive the propeller to move the device on the water surface. A GPS module and a preset path navigation system can be configured on the hull 100 to move on the wetland water surface according to a predetermined route and schedule. The hull 100 can actively pump water, and a pump body 700 is arranged at the drainage end of the algae collection device of the hull 100.

[0055] The algae collection device comprises a collection chamber 210, a garbage bin 230 and a collection bin 240; a collection member 220 is arranged in the collection chamber 210; the collection member 220 is rotatably connected to the collection chamber 210, and the collection member 220 has a rotating shaft 221, and an interception net 222 is annularly distributed on the rotating shaft 221; a position switching mechanism is arranged on the rotating shaft 221, and the position switching mechanism comprises a cam 223 sleeved on the rotating shaft 221; a clamping member 224 for abutting or clamping with the cam 223 is arranged on the hull 100, and the clamping member 224 is connected to the hull 100 through an elastic member; the garbage bin 2 The garbage bin 230 is provided on the hull 100, the inlet end of the garbage bin 230 is connected to the outlet end of the collecting chamber 210, and the outlet end of the garbage bin 230 is provided with a mesh plate 231; the collecting bin 240 is provided on the hull 100, the inlet end of the collecting bin 240 is connected to the outlet end of the garbage bin 230, and the collecting bin 240 is provided with a filter hole; the hull 100 is provided with a water inlet channel 250, the water inlet of the water inlet channel 250 is provided on the outer wall of the hull 100, the water outlet of the water inlet channel 250 is connected to the water inlet of the collecting chamber 210, and the water inlet of the collecting chamber 210 corresponds to the interception net 222 on one side of the collecting element 220. The collecting bin 240 intercepts and cleans the intercepted algae and dead algae to reduce their secondary pollution to the water body. The garbage bin 230 is used to collect and intercept debris larger in size than the floating and scattered algae. The elastic member can be a torsion spring, rubber or silicone, etc. The clamp 224 can have a restoring force. A cover can be provided on the collection bin 240, which is closed at ordinary times and made of a transparent material for easy observation.

[0056] In order to facilitate the rotation of the rotating shaft 221 and prevent the debris from entering the garbage bin 230 together with the fine algae without being intercepted, the above-mentioned collection chamber 210 can be set as a disc-shaped cavity. In order to ensure smooth rotation without missing debris, the gap between the interception net 222 and the inner wall of the collection chamber 210 should not be too large, as long as there is no contact and friction. The above-mentioned rotating shaft 221 is arranged vertically through the bearing, and the above-mentioned cam 223 can be arranged at the upper end or the lower end of the rotating shaft 221 according to the internal space of the hull 100. The above-mentioned cam 223 and the clamp 224 can cooperate with each other and form a docking position that matches the number of the interception nets 222. In terms of the limiting force, the two can make the clamp 224 disengage from the current clamping position after the torque of the rotating shaft 221 reaches a certain threshold.

[0057] By setting up this wetland restoration and maintenance equipment, tiny algae that remain in the water or float or scatter can be effectively collected. In the water, in addition to tiny algae, there may also be a large amount of non-algae and larger debris. If a high-mesh filter plate is used directly for interception, these debris will clog the filter plate together with the algae, affecting the normal operation of the equipment. In order to solve this problem, the present device adopts a three-stage interception method, that is, a structural design in which the collection chamber 210 is in the front, the garbage bin 230 is in the middle, and the collection bin 240 is in the back.

[0058] Specifically, when the water containing debris and floating algae enters the collection chamber 210, the water flow impacts the interception net 222 on one side of the rotating shaft 221 to initially intercept larger debris. The interception net 222 is designed so that larger debris is temporarily stored in the collection chamber 210, while small algae pass through the interception net 222 to the next stage. After the algae continue to pass through the garbage bin 230, they are finally intercepted and collected by the collection bin 240.

[0059] In the collection chamber 210, when garbage gradually accumulates and blocks the interception net 222, as the degree of blockage increases, the impact force of the water flow on the interception net 222 gradually increases. When the impact force reaches a certain threshold, the impact force of the water flow is sufficient to overcome the friction and pressure between the clamp 224 and the cam 223, so that the cam 223 and the clamp 224 are separated. At this time, the rotating shaft 221 rotates under the action of the water flow, driving the clean interception net 222 on the other side to rotate to the working position, thereby continuing to effectively intercept the debris in the water flow. At this time, the debris that was previously intercepted enters the garbage bin 230 and is intercepted and collected by the garbage bin 230.

[0060] Through this three-stage interception method, the present device can effectively separate debris from fine algae, ensure the efficient collection of fine algae, reduce the clogging of the filter plate, and improve the operating efficiency and reliability of the equipment. Compared with the direct use of two-stage filtration, such as setting up a garbage bin 230 to intercept water debris and then directly flowing into the collection bin 240, the present three-stage interception method ensures that the filter plate of the garbage bin 230 located in the middle section can be kept for a long time without being completely blocked by debris. It ensures that the collection bin 240 can have a longer effective algae collection time. This equipment not only improves the efficiency of algae collection, but also extends the service life of the equipment, providing strong technical support for wetland restoration and maintenance. The filter hole diameter of the above-mentioned collection bin 240 is less than or equal to 3 mm, and filter plates with 2 mm, 1 mm, 0.5 mm, and 0.1 mm filter holes can be set.

[0061] Preferably, the protruding portion on the cam 223 is a streamlined structure, so as to reduce the stress concentration between the clamp 224 and the cam 223, so as to facilitate smoother switching of the interception net 222.

[0062] Embodiment 2

[0063] Combination Figure 5 and Figure 7 On the basis of the first embodiment, the water inlet channel 250 includes a main channel 251 and a branch channel 252; the water inlet of the water inlet channel 250 is the water inlet of the main channel 251, and the water outlet of the main channel 251 is connected to the reversing valve 253 to connect the two branch channels 252; the collection chamber 210 is provided with two parallel water inlets, which respectively correspond to the interception nets 222 on both sides of the rotating shaft 221. The aforementioned annular valve can adopt a three-position electromagnetic reversing valve to achieve full disconnection or flow of one of the branch channels 252. When setting up the garbage bin 230 and the collection bin 240, one side thereof can be set to be open and arranged according to the water inlet direction, such as Figure 2 The garbage bin 230 is set to be open on the side facing the collecting chamber 210, that is, on the side facing the bow, and is set to be a mesh plate on the side facing the collecting bin 240. The collecting bin 240 is set to be open on the side facing the bow (the incoming water flows out from the side of the garbage bin 230 and flows into the front of the collecting bin 240), and the other three sides of the collecting bin 240 are filter plates.

[0064] In order to solve the problem of some algae or other tiny debris remaining on the interception net 222 on one side of the shaft 221 after long-term use, this solution adopts a sophisticated design, that is, by switching the tributary waterway, the interception net 222 is automatically switched by the forward rotation of the shaft 221, and then the shaft 221 is reversed, and the residue on the interception net 222 is backwashed by the impact of the water flow change. This mechanism not only does not interrupt the collection of residual algae in the water body, but also effectively removes the accumulated materials on the interception net 222, ensuring that the interception net 222 can continue to remain in a relatively clean state. This design not only improves the self-cleaning ability of the system, but also reduces the need for manual maintenance, thereby improving the overall operating efficiency.

[0065] Embodiment 3

[0066] Combination Figure 7 and Figure 8 On the basis of the above-mentioned embodiment 1 or 2, the protruding part on the cam 223 forms a protrusion 225, and the protrusions 225 are three and evenly distributed in the circumferential direction, and the space between the protruding parts forms a card slot corresponding to the number of the interception nets 222; the card member 224 is adapted to the card slot. This design enables the multiple protrusions 225 on the cam 223 to achieve accurate switching of multiple positions, so that each protrusion 225 corresponds to the position of an interception net 222, and through the cooperation between the protrusion 225 and the card member 224, it can ensure that the rotating shaft 221 is accurately switched between multiple positions.

[0067] Embodiment 4

[0068] Combination Figure 5 and Figure 6 On the basis of the above-mentioned embodiment 1 or 2, the protruding part on the cam 223 forms a protrusion 225, the protrusion 225 is two and symmetrically distributed with respect to the center of the rotating shaft 221, and the interception net 222 is symmetrically distributed with respect to the center of the rotating shaft 221; the clamp 224 is provided with a groove adapted to the protrusion 225. In addition to using three or more interception nets 222, this solution can adopt a simplified solution, that is, using an interception net 222 to be sleeved on the rotating shaft 221 and rotate with the rotating shaft 221, which is more concise and convenient to manufacture and install.

[0069] Embodiment 5

[0070] Combine 1 to Figure 4On the basis of any of the above-mentioned embodiments, the hull 100 of this embodiment is a catamaran structure, which includes sub-hulls 110 located on both sides, and the two sub-hulls 110 are connected by a bridge 120; the water inlet channel 250 and the collection chamber 210 are arranged in the sub-hull 110, and the collection bin 240 is arranged in the bridge 120. The above-mentioned collection chamber 210 and garbage bin 230 are arranged at the front of the sub-hull 110, and when the pump body 700 is not turned on, the water flow can naturally flow from the front of the sub-hull 110 to the collection bin 240 when the boat moves forward. The water inlet of the collection chamber 210 is arranged at the front position of the sub-hull 110, specifically, at the side of the front position close to the bridge 120, and the water inlet can be provided with a railing to prevent oversized objects from entering the water inlet.

[0071] This conventional method adopts a catamaran structure. In view of the characteristics of remote control equipment or unmanned ships, it has better lateral stability than a monohull structure. The two sub-hulls 110 can effectively resist the impact of wind, waves and water flow, reduce the shaking and tilting of the hull 100, and ensure that the equipment can operate normally under conditions with large waves. In view of the needs of unmanned equipment, the stability and safety of the equipment in complex water environments are improved. Here, a water inlet channel 250 and a collection chamber 210 are set in the sub-hull 110, and the space of the hull 100 can be fully utilized, so that the equipment structure is compact, the functional division is clear, and the space utilization rate is improved. The water inlet channel 250, the collection chamber 210, and the garbage bin 230 are respectively set in the two sub-hulls 110, so that each sub-hull 110 can work independently. Even if the water inlet channel 250 or the collection chamber 210 on one side fails, the other side can continue to work.

[0072] The scheme of this embodiment can be further optimized. For example, the bridge frame 120 is provided with a bottom trough 121, and the collection bin 240 is detachably arranged in the bottom trough 121; or / and the sub-hull 110 is provided with a garbage bin installation groove 111, and the garbage bin 230 is detachably arranged in the garbage bin installation groove 111; the bottom surface or / and the side wall of the collection bin 240 are provided with filter holes, which are used to allow the liquid in the collection bin 240 to flow out of the collection bin 240 to the bottom trough 121 through the filter holes. When the garbage bin 230 is pulled out from the hull 100 for garbage cleaning, the mesh plate 231 of the garbage bin 230 can be cleaned.

[0073] The collection bin 240 and the garbage bin 230 are both detachable, and the operator can easily take out the collection bin 240 or the garbage bin 230 for cleaning or replacement, which reduces maintenance time and labor intensity and is also convenient for regular cleaning and maintenance. During the operation of the equipment, if the collection bin 240 or the garbage bin 230 is full, a new collection bin 240 or the garbage bin 230 can be quickly replaced to ensure the continuous operation of the equipment. The above-mentioned liquid phase can flow out of the collection bin 240 through the filter holes and enter the bottom tank 121 or other drainage systems, avoiding the problem of water accumulation in the collection bin 240.

[0074] A water circulation treatment device is also provided in the bridge frame 120, and the water circulation treatment device includes a filter chamber 300 provided in the bridge frame 120, and one or more filter elements 310 are provided in the filter chamber 300. The water inlet of the filter chamber 300 is connected with the water outlet of the bottom tank 121. The filter chamber 300 is used to filter the liquid phase sucked into the filter chamber 300 and discharge it out of the hull 100. The discharge port 320 of the filter chamber 300 can be provided below the tail end of the bridge frame 120.

[0075] By providing one or more filter elements 310, multi-stage filtration can be achieved to effectively remove impurities such as suspended matter, algae fragments, organic matter, etc. in the water, thereby improving the water purification effect. The filtered water can be safely discharged, avoiding the direct discharge of untreated sewage into the water body and reducing the risk of secondary pollution.

[0076] The mesh size of the intercepting net 222 is larger than the filter hole size; the mesh size of the intercepting net 222 is equal to or larger than the mesh size of the mesh plate 231. The size here refers to the diameter or radius if it is a circular hole, the minimum diagonal length if it is a rectangle or rhombus, and the minimum width if it is an irregular shape.

[0077] Embodiment 6

[0078] Reference Figure 5 and Figure 7 The wetland restoration and maintenance equipment also includes an ultrasonic algae inhibition device 400, which is arranged below the hull 100; the ultrasonic algae inhibition device 400 is an ultrasonic transmitter with a transmission frequency of 20 to 40 kHz, which is used to emit ultrasonic waves with a duration of 10 to 15 minutes to the water body to destroy the filamentous algae remaining in the water body. The transmission frequency is 20 to 40 kHz, and preferably, three frequencies of 20 kHz, 30 kHz, and 40 kHz can be used.

[0079] Ultrasonic waves can destroy algae cell walls and cell membranes, affecting their metabolism and reproduction capacity, thereby effectively inhibiting the excessive growth of algae. Compared with chemical methods, ultrasonic waves will not cause chemical pollution to water bodies and are more environmentally friendly. The ultrasonic frequency range of 20 to 40 kHz is selected here because it is particularly sensitive to algae cells and can specifically inhibit algae growth, while having little impact on other aquatic organisms, thus protecting the ecological balance of the water body.

[0080] Combination Fig.10 The ultrasonic algae inhibition device includes an algae online monitoring device 410 and an ultrasonic transmitter 420. By online monitoring of algae content results, the ultrasonic frequency and duration are automatically selected, and multi-frequency ultrasonic waves are emitted into the water body multiple times to enhance the inhibitory effect on various algae.

[0081] The algae online monitoring device 410 includes a sensor module, which includes any one or any combination of a chlorophyll fluorescence sensor, a turbidity sensor, a temperature sensor, a pH sensor, and a conductivity sensor.

[0082] The above-mentioned chlorophyll fluorescence sensor is used to detect the chlorophyll content in the water body. Algae contain chlorophyll, and the content of algae can be indirectly measured by detecting chlorophyll fluorescence. Turbidity sensors are used to measure the turbidity of water bodies. The large-scale reproduction of algae will cause the turbidity of water bodies to increase. Temperature sensors are used to monitor the temperature of water bodies, because temperature changes will affect the growth of algae. pH sensors are used to monitor the pH value of water bodies. Algae growth will affect the acidity and alkalinity of water bodies. Conductivity sensors are used to monitor the conductivity of water bodies. Changes in conductivity can reflect the concentration of dissolved salts and nutrients in water bodies.

[0083] The above-mentioned algae online monitoring device 410 is provided with a data processing unit 600 connected to the sensor module for processing the data collected by the sensor and performing data analysis and decision-making.

[0084] The ultrasonic algae inhibition device automatically selects the ultrasonic frequency and duration by online monitoring of algae content, and emits multi-frequency ultrasonic waves into the water body multiple times to destroy algae cells and enhance the inhibitory effect on various algae. The selected ultrasonic frequency and duration are more suitable for destroying algae cells, but the emission frequency and intensity are low, which has less impact on the wetland water ecosystem and environment.

[0085] The ultrasonic algae inhibition device includes an online algae monitoring device 410 and an ultrasonic transmitter 420. By online monitoring of algae content results, the ultrasonic frequency and duration are automatically selected, and multi-frequency ultrasonic waves are emitted into the water body multiple times to enhance the inhibitory effect on various algae. The ultrasonic transmitter 420 is arranged below the bridge frame 120.

[0086] For example, chlorophyll fluorescence sensors can be used to detect the chlorophyll content in water and indirectly measure the concentration of filamentous algae. Turbidity sensors can be used to measure the turbidity of water and assist in determining the concentration of algae. pH sensors and conductivity sensors can monitor the pH value and conductivity of water to assist in determining the algae growth environment.

[0087] The data processing unit 600 is connected to the power system 500 of the ship and the pump body 700, and is used to control the speed change of the power system 500 and / or change the pump suction according to the data collected by the sensor module.

[0088] When it is determined that the value is greater than the preset threshold, the data processing unit 600 sends a command to the power system of the hull to control the hull speed and the pump body 700. In this scheme, the driving speed v(C) decreases exponentially with the increase of the filamentous algae concentration C, and the pump suction intensity p(C) increases linearly with the increase of the filamentous algae concentration C.

[0089] When the data processing unit 600 is controlled, the power system and the pump body 700 can be controlled according to the following parameters. Set the following parameters:

[0090] C: Algae concentration, in mg / L (milligrams per liter). The value range is usually 0≤C≤100mg / L.

[0091] v(C): driving speed, in m / s (meters per second), with a maximum speed of 1 m / s.

[0092] p(C): Pump suction intensity, unit is W (watt), the minimum pump suction intensity is 50W.

[0093] Using exponential decay function

[0094] v(C)=v max *e -αC

[0095] Maximum driving speed v max =1m / s

[0096] Attenuation coefficient, controls the rate at which the velocity changes with concentration: α = 0.02 L / mg.

[0097] The driving speed function is:

[0098] v(C)=1*e-0.02C

[0099] The pumping intensity function p(C) adopts a linear function:

[0100] p(C)=p min +βC

[0101] Minimum pumping strength: p min =50W

[0102] Growth coefficient, controls the rate at which pumping intensity changes with concentration: β = 1W / mg / L

[0103] The pumping intensity function is:

[0104] p(C)=50+1*C

[0105] We can get:

[0106] v(C)=1*e-0.02Cv(C)=1*e-0.02C

[0107] p(C)=50+1*Cp(C)=50+1*C

[0108] Example Calculation

[0109] Assuming that the measured concentration of filamentous algae at a certain time is C = 20 mg / L, calculate:

[0110] v(20)=1*e-0.02*20=1*e-0.4≈1*0.6703=0.6703m / s

[0111] p(20)=50+1*20=50+20=70W

[0112] The following is an implementation scenario to illustrate the working of this device.

[0113] Before use, after the algae clusters in the large wetland park are harvested and collected manually or by a collection boat with a large cutter, the wetland restoration and maintenance equipment is deployed.

[0114] The operator transports the equipment (hull 100) to the designated waters of the wetland park and starts the equipment through the remote control device. The working path and schedule of the equipment are set through the GPS module and the preset path navigation system to ensure that the equipment can cover all waters that need to be repaired and maintained. The ultrasonic algae inhibition device 400 under the equipment starts to work, emitting ultrasonic waves with a frequency of 20 to 40 kHz to destroy the filamentous algae remaining in the water body and inhibit the metabolism and reproduction ability of the algae.

[0115] Water enters the device through the water inlet channel 250. The water inlet of the water inlet channel 250 is arranged on the outer wall of the hull 100, and the water outlet of the main channel 251 is connected to the two branch channels 252 through the reversing valve 253, wherein the connection mode can be switched by the reversing valve 253.

[0116] After the water flows into the collection chamber 210, the interception net 222 on the collection member 220 in the collection chamber 210 preliminarily intercepts the larger debris in the water. The interception net 222 is designed so that the larger debris is temporarily stored in the collection chamber 210, while the fine algae pass through the interception net 222 to the next stage.

[0117] The water flow after being processed by the collection chamber 210 continues to enter the garbage bin 230, which finally intercepts and collects the larger debris. A mesh plate 231 is provided at the outlet end of the garbage bin 230 to intercept the larger debris and allow the fine algae to pass through.

[0118] The water flow after being processed by the garbage bin 230 finally enters the collection bin 240, and the collection bin 240 finally intercepts and collects the fine algae. A cover can be set on the collection bin 240, which is closed daily and made of transparent material for easy observation.

[0119] When the interception net 222 in the collection chamber 210 is blocked, the impact force of the water flow on the interception net 222 gradually increases. When the impact force reaches a certain threshold, the clamp 224 is disengaged from the cam 223, the rotating shaft 221 rotates, and the clean interception net 222 rotates to the working position to continue to effectively intercept the debris in the water flow. At this time, the previously intercepted debris enters the garbage bin 230 to be collected and intercepted.

[0120] This equipment is equipped with a backwash mechanism. Fig. 9 The water flow direction is controlled by the reversing valve 253, and the automatic switching and backwashing of the interception net 222 are realized by the forward and reverse rotation of the rotating shaft 221, so as to keep the interception net 222 clean and ensure the normal operation of the equipment. Fig. 9 In the figure, the right side branch channel 252 of the left sub-hull 110 is opened, and the left side branch channel 252 of the right sub-hull 110 is opened. The transformation of the rotating shaft 221 can be switched by the reversing valve 253 through the impact of water flow to perform backwashing.

[0121] The liquid phase in the collection bin 240 flows out of the collection bin 240 into the bottom tank 121 through the filter holes. The water in the bottom tank 121 enters the filter chamber 300 and is filtered through one or more filter elements 310 in multiple stages to remove suspended matter, algae fragments, organic matter and other impurities in the water. The filtered water is discharged from the hull 100 through the drain port 320 of the filter chamber 300 to ensure safe discharge of the water and avoid secondary pollution. The above-mentioned collection bin 240 and garbage bin 230 are both detachable, and the operator can easily take out the collection bin 240 or the garbage bin 230 for cleaning or replacement.

[0122] When it is determined that the value of the water area is greater than a preset threshold, the data processing unit 600 sends instructions to the power system of the hull to control the hull speed and the pump body 700. When entering the water area where the concentration of filamentous algae is determined to be greater than the threshold, the hull is controlled to slow down, the pump body is turned on, and the pumping intensity of the pump body is controlled according to the above control logic to optimize electricity consumption to ensure a relatively long cruising time for the entire hull in the entire water area.

[0123] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A wetland restoration and maintenance equipment, characterized in that: The invention comprises a hull and an algae collecting device; the algae collecting device is arranged on the hull; the algae collecting device comprises: A collecting chamber, wherein a collecting member is arranged in the collecting chamber; the collecting member is rotatably connected to the collecting chamber, the collecting member has a rotating shaft, and an interception net is annularly distributed on the rotating shaft; a clamping position switching mechanism is arranged on the rotating shaft, and the clamping position switching mechanism comprises a cam sleeved on the rotating shaft; a clamping member for abutting or clamping with the cam is arranged on the hull, and the clamping member is connected to the hull through an elastic member; A garbage bin is arranged on the hull, the inlet end of the garbage bin is connected with the outlet end of the collection chamber, and a mesh plate is arranged at the outlet end of the garbage bin; A collecting bin is arranged on the hull, the inlet end of the collecting bin is connected with the outlet end of the garbage bin, and the collecting bin is provided with filter holes; Among them, a water inlet channel is opened on the hull, the water inlet of the water inlet channel is opened on the outer wall of the hull, the water outlet of the water inlet channel is connected with the water inlet of the collection chamber, and the water inlet of the collection chamber corresponds to the interception net on one side of the collection component.

2. A wetland restoration and maintenance equipment according to claim 1, characterized in that: The protruding part on the cam is a streamlined structure.

3. A wetland restoration and maintenance equipment according to claim 1, characterized in that: The water inlet channel comprises a main channel and a branch channel; the water inlet of the water inlet channel is the water inlet of the main channel, and the water outlet of the main channel is connected to the reversing valve to connect the two branch channels; The collecting chamber is provided with two water inlets facing in parallel, and the two water inlets correspond to the interception nets on both sides of the rotating shaft respectively.

4. A wetland restoration and maintenance equipment according to claim 1, characterized in that: The protruding parts on the cam form protrusions, which are at least three and evenly distributed in the circumferential direction; the spaces between the protruding parts form card slots whose number corresponds to the number of interception nets; and the card pieces are adapted to the card slots.

5. A wetland restoration and maintenance equipment according to claim 1, characterized in that: The protruding part on the cam forms a protrusion, and the protrusion is two and symmetrically distributed relative to the center of the rotating shaft, and the intercepting net is symmetrically distributed relative to the center of the rotating shaft; the clamp is provided with a groove adapted to the protrusion.

6. A wetland restoration and maintenance equipment according to any one of claims 1 to 5, characterized in that: The hull is a catamaran structure, which includes sub-hulls located on both sides, and the two sub-hulls are connected by a bridge; The water inlet channel and the collecting chamber are arranged in the sub-hull, and the collecting bin is arranged in the bridge frame.

7. A wetland restoration and maintenance equipment according to claim 6, characterized in that: The bridge frame is provided with a bottom groove, and the collection bin is detachably arranged in the bottom groove; Or / and a garbage bin installation slot is provided on the sub-hull, and the garbage bin is detachably arranged in the garbage bin installation slot; The bottom surface and / or side wall of the collecting bin are provided with filter holes, which are used to allow the liquid phase in the collecting bin to flow out of the collecting bin into the bottom tank through the filter holes.

8. A wetland restoration and maintenance equipment according to claim 7, characterized in that: A water circulation treatment device is also provided in the bridge frame, which includes a filter chamber arranged in the bridge frame, one or more filter elements are arranged in the filter chamber, and the water inlet of the filter chamber is connected to the water outlet of the bottom tank. The filter chamber is used to filter the liquid phase sucked into the filter chamber and then discharge it from the hull.

9. A wetland restoration and maintenance equipment according to claim 7, characterized in that: The mesh size of the interception net is larger than the filter hole size; the mesh size of the interception net is equal to or larger than the mesh size on the mesh plate.

10. A wetland restoration and maintenance equipment according to claim 1, characterized in that: It also includes an ultrasonic algae inhibition device, which is arranged under the hull and is used to emit ultrasonic waves with a duration of 10 to 15 minutes to the water body; The ultrasonic algae inhibition device is an ultrasonic transmitter with a transmission frequency of 20 to 40 kHz.

Images