A water purification device utilizing plant transpiration

Abstract

The present invention discloses a water purification device utilizing plant transpiration, belonging to the technical field of sewage purification. It solves the problem of insufficient sewage purification in existing sewage treatment devices due to the filtration method used to purify sewage. The device comprises a sealed shed disposed over a sewage channel, in which aquatic plants are planted. An air purification assembly for purifying the air within the sealed shed and a pruning assembly for pruning the aquatic plants are mounted on the sealed shed. A water collection assembly for condensing the moist air within the sealed shed is also provided within the sealed shed. The present invention utilizes plant transpiration to purify a portion of the sewage. The transpiration of the aquatic plants converts a portion of the flowing sewage into moist air, which is then condensed by the water collection assembly to obtain purified water. Compared to conventional filtration devices for purifying sewage, the purified water of the present invention contains fewer impurities and has a higher degree of purification.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage purification and treatment, and in particular to a water purification device utilizing plant transpiration. Background Art

[0002] At present, the soil in some areas, such as those near highly polluting enterprises, is polluted and sometimes wells have to be hundreds of meters deep to obtain uncontaminated water, and filtration is generally used to purify the water.

[0003] For example, a Chinese patent with publication number CN116177771A discloses a sewage treatment method and apparatus, relating to the technical field of sewage purification. The sewage treatment method is performed in the following order: treatment with a plant filter layer, treatment with a small-particle filter layer, and treatment with a large-particle filter layer, with the sewage flowing downward; the plant filter layer is planted with aquatic plants; the small-particle filter layer has a small-particle filter diameter of 3 to 8 mm, and the large-particle filter layer has a large-particle filter diameter of 20 to 30 mm; the large-particle filter layer is aerated, and the gas generated by the aeration passes through the large-particle filter layer, the small-particle filter layer, and the plant filter layer in sequence.

[0004] The sewage treatment method of the invention has the advantages of high sewage treatment efficiency and simple operation, but it only filters the sewage layer by layer, and the degree of purification of the sewage is limited, and a small amount of impurities still remain. Summary of the Invention

[0005] In response to the above problems in the prior art, the present invention provides a water purification device using plant transpiration, which solves the problem that the existing sewage treatment device uses filtration to purify sewage, resulting in insufficient sewage purification.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] Provided is a water purification device utilizing plant transpiration, comprising a sealed shed arranged on a sewage channel, wherein aquatic plants are planted in the sewage channel, an air purification component for purifying the air in the sealed shed and a pruning component for pruning the aquatic plants are installed on the sealed shed, and a water collection component for condensing the wet air in the sealed shed is arranged in the sealed shed.

[0008] In this solution, the transpiration of aquatic plants is used to convert part of the sewage into wet air, and the combination of a sealed shed and air purification components ensures the cleanliness of the wet air, and condenses it through the water collection component to achieve purified water. Compared with purifying sewage through filtering devices, the use of biological sewage purification has a high degree of purification and less impurity content.

[0009] Furthermore, the sewage channel includes a plurality of flow channels distributed at intervals, and a cover plate including a plurality of through holes is installed on each of the flow channels. A root guide ball for guiding the growth direction of the roots of aquatic plants is provided at the through holes on each cover plate, and aquatic plants are planted in each root guide ball. The use of a plurality of flow channels distributed at intervals facilitates the uniform distribution of multiple aquatic plants, which is beneficial to the growth of aquatic plants and transpiration.

[0010] Furthermore, the root guide ball has a hemispherical opening structure, and a plurality of lateral root tubes for lateral root growth are provided on the side of the root guide ball, and a main root hole for main root growth is provided at the bottom round end of the root guide ball; the use of the root guide ball is not only convenient for fixing aquatic plants, but also the plurality of lateral root tubes can guide the lateral roots of aquatic plants to spread around and be evenly distributed in the sewage in the flow channel, which is conducive to growth; the main roots of aquatic plants are guided to grow vertically downward through the main root hole at the bottom of the root guide ball, thereby avoiding the lateral roots of aquatic plants competing for nutrients within the main root range in the sewage.

[0011] Furthermore, the air purification component includes a ventilator fixed on the sealed shed and connected to the outside world, the air outlet of the ventilator is connected to the air inlet of the coarse filter, the air outlet of the coarse filter is connected to the air inlet of the cyclone separator, the clean air outlet of the cyclone separator is connected to the wire mesh filter, the electrostatic precipitator and the water curtain filter in sequence, and the air outlet of the water curtain filter extends into the sealed shed.

[0012] In this solution, the coarse filter filters some leaves, stones and flying catkins; the cyclone separator filters some dust and dust with larger particles; the wire mesh filter further filters the dust; the electrostatic precipitator filters fine particles; and the water curtain filter separates some soluble gas pollutants. The air purification components are set up in this way to avoid the pollution of wet air in the sealed shed.

[0013] Furthermore, the water collection component includes a condenser installed in the sealed shed, the air outlet of the condenser is connected to the vacuum pump, the exhaust pipe of the vacuum pump extends out of the sealed shed, and the condensation water outlet of the condenser is connected to the clean water pipeline; the condenser is used to condense the wet air in the sealed shed through plant transpiration, thereby obtaining clean water.

[0014] Furthermore, the pruning assembly includes a three-axis motion platform fixed on the top of the sealed shed, on which a pruning machine is fixed, and the pruning machine is connected to a collection box for collecting pruned branches of aquatic plants; the sealed shed increases the temperature, so that the aquatic plants grow faster, and the pruning machine is driven by the three-axis motion platform to move in the sealed shed to prune the aquatic plants, thereby improving the vitality of the aquatic plants, and the pruned branches are collected through the collection box.

[0015] Furthermore, the pruning machine includes a fixed shell fixed on a three-axis motion platform, the fixed shell has an open structure at one end, and a pruning knife is rotatably arranged in the fixed shell, and each blade of the pruning knife is connected to a heating component; a collecting hose connected to a collecting box is provided on the side of the fixed shell; each blade on the pruning knife is evenly heated by the heating component, so that when the pruning knife rotates to cut the aquatic plants, it is not only conducive to cutting off the branches of the aquatic plants, but also at the moment of cutting the branches, the temperature on the blades can disinfect the cut ends on the branches, promote the healing of the cut ends, and prevent the cut ends from being infected by bacteria to cause necrosis of the aquatic plants.

[0016] Furthermore, the collection box is located outside the sealed shed, and an air pump is provided in the collection box to provide negative pressure for the collection hose; the air pump provides negative pressure for the collection hose, which facilitates the pruned branches to enter the collection box through the collection hose.

[0017] Furthermore, the heating assembly includes a plurality of heat-conducting rods, one end of each heat-conducting rod is vertically fixed on each blade of the pruning knife, and the other end of each heat-conducting rod extends out of the annular opening in the middle of the fixed shell and is fixedly connected to the heating ring, and the heating ring is electrically connected to the upper machine through a conductive slip ring; the heat of the heating ring can be transferred to each blade of the pruning knife by using the plurality of heat-conducting rods, and the conductive slip ring can avoid line entanglement when the heating ring is driven to rotate by the pruning knife, thereby ensuring the normal operation of the heating ring.

[0018] Furthermore, an infrared temperature sensor for measuring the temperature of the pruning knife blade is installed in the fixed shell, and the infrared temperature sensor is electrically connected to the host computer; the use of the infrared temperature sensor facilitates the detection of the temperature of the pruning knife blade, thereby facilitating the host computer to control the heating temperature of the heating ring and control the temperature of the pruning knife within an appropriate range.

[0019] The present invention discloses a water purification device utilizing plant transpiration, which has the following beneficial effects:

[0020] The present invention utilizes the transpiration of plants to purify part of the sewage, converts part of the flowing sewage into wet air through the transpiration of aquatic plants, and condenses it through a water collection component to obtain purified water. Compared with traditional filtering devices that filter and purify sewage, the purified water of the present invention has fewer impurities and a higher degree of purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a water purification device that utilizes plant transpiration;

[0022] Figure 2 Schematic diagram of the structure of the water collection component;

[0023] Figure 3 It is a structural diagram of the air purification component;

[0024] Figure 4It is a structural diagram of the trimming component;

[0025] Figure 5 It is a partial schematic diagram of a trimming machine;

[0026] Figure 6 This is a schematic diagram of the structure of the root guide ball;

[0027] Among them: 1. Sewage channel; 2. Water collection component; 3. Air purification component; 4. Sealed shed; 5. Three-axis motion platform; 6. Pruning component; 7. Aquatic plants; 8. Root guide ball; 21. Condenser; 22. Vacuum pump; 31. Ventilator; 32. Coarse filter; 33. Cyclone separator; 34. Wire mesh filter; 35. Electrostatic precipitator; 36. Water curtain filter; 61. Pruning machine; 62. Collection hose; 63. Collection box; 81. Lateral root canal; 82. Main root hole; 91. First pair of grating sensors; 92. Second pair of grating sensors; 611. Pruning knife; 612. Heat conduction rod; 613. Heating ring; 614. Infrared temperature sensor. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all inventions and creations utilizing the concepts of the present invention are protected.

[0029] Example 1

[0030] This embodiment provides a water purification device using plant transpiration, which is used to solve the problem of insufficient sewage purification in existing sewage treatment devices due to the use of filtration to purify sewage.

[0031] refer to Figure 1 The present invention provides a water purification device utilizing plant transpiration, including a sewage channel 1, a sealing shed 4, an air purification component 3, a pruning component 6 and a water collection component 2.

[0032] The sealed shed 4 is a transparent shed installed on the sewage channel 1 to isolate the external environment and ensure that the air in the sealed shed 4 is not polluted, thereby facilitating condensation to obtain relatively pure purified water.

[0033] The air purification component 3 and the pruning component 6 are both installed on the sealed shed 4. The air purification component 3 is used to purify the air entering the sealed shed 4 from the outside and filter out impurities in the air from the outside; the pruning component 6 is used to prune aquatic plants 7 to prevent the aquatic plants 7 from growing in a disorderly manner, and proper pruning is conducive to the growth of aquatic plants 7.

[0034] The water collecting assembly 2 is installed in the sealed shed 4 and is used to condense the wet air in the sealed shed 4 to obtain relatively pure purified water.

[0035] In this embodiment, part of the sewage is converted into wet air by utilizing the transpiration of aquatic plants 7, and the cleanliness of the wet air is ensured by utilizing the cooperation of the sealed shed 4 and the air purification component 3, and the water is purified by condensation through the water collection component 2. Compared with purifying sewage through a filtering device, biological sewage purification has a high degree of purification and less impurity content.

[0036] As a further embodiment of this embodiment, the sewage channel 1 includes multiple spaced-apart flow channels, which provide a continuous flow of water to the roots of aquatic plants 7. The flow channels also improve the water quality during the growth of the aquatic plants 7. The use of multiple spaced-apart flow channels facilitates the even distribution of multiple aquatic plants 7, facilitating their growth and transpiration.

[0037] A cover plate including a plurality of through holes is installed on each of the plurality of flow channels, and a root guide ball (8) for guiding the root growth direction of the aquatic plant 7 is provided at the through hole of each cover plate, and an aquatic plant 7 is planted in each root guide ball (8); the use of the cover plate can reduce the natural volatilization of sewage in the flow channel, reduce the exchange of sewage with the air in the sealed shed 4, and ensure the cleanliness of the air in the sealed shed 4.

[0038] refer to Figure 6 The root guide ball 8 has a hemispherical open structure. Multiple lateral root tubes 81 are evenly distributed along the sides of the root guide ball 8, allowing for lateral root growth. A taproot hole 82 is provided at the bottom circular end of the root guide ball 8 for the main root to grow. Using the root guide ball 8 not only facilitates the fixation of the aquatic plant 7, but the multiple lateral root tubes 81 can guide the lateral roots of the aquatic plant 7 to spread outward, evenly distributed in the sewage in the flow channel, and thus facilitate growth. The through-holes at the bottom of the root guide ball 8 guide the taproot of the aquatic plant 7 to grow vertically downward, thereby preventing the lateral roots of the aquatic plant 7 from competing for nutrients within the taproot's area in the sewage, thus facilitating the growth of the aquatic plant 7.

[0039] As a further solution of this embodiment, refer to Figure 3 The air purification component 3 includes a ventilator 31, a coarse filter 32, a cyclone separator 33, a wire mesh filter 34, an electrostatic precipitator 35 and a water curtain filter 36.

[0040] The ventilator 31 is fixed on one side of the sealed shed 4 and is connected to the outside. The air outlet of the ventilator 31 is connected to the air inlet of the coarse filter 32, and the air outlet of the coarse filter 32 is connected to the air inlet of the cyclone separator 33. The clean air outlet of the cyclone separator 33 is connected to the wire mesh filter 34, the electrostatic precipitator 35 and the water curtain filter 36 in sequence. The air outlet of the water curtain filter 36 extends into the sealed shed 4.

[0041] In this embodiment, the coarse filter 32 filters some leaves, stones and flying catkins; the cyclone separator 33 filters some dust and dust with larger particles; the wire mesh filter 34 further filters the dust; the electrostatic precipitator 35 filters fine particles; the water curtain filter 36 separates some soluble gas pollutants. The air purification component 3 is arranged in this way to avoid the pollution of wet air in the sealed shed 4.

[0042] As a further solution of this embodiment, refer to Figure 2 The water collection component 2 includes a condenser 21 installed in the sealed shed 4. In this embodiment, a plate condenser is preferably used. The air outlet of the condenser 21 is connected to the vacuum pump 22, and the exhaust pipe of the vacuum pump 22 extends out of the sealed shed 4. The condensation water outlet of the condenser 21 is connected to the clean water pipeline; the condenser 21 is used to condense the wet air generated by plant transpiration in the sealed shed 4, thereby obtaining clean water.

[0043] Example 2

[0044] This embodiment provides a specific structure of the trimming component 6 based on the embodiment 1.

[0045] refer to Figure 1 The pruning assembly 6 of this embodiment includes a three-axis motion platform 5 fixed on the top of the sealed shed 4, and a pruning machine 61 is fixed on the three-axis motion platform 5. The pruning machine 61 is connected to a collection box 63 for collecting pruned branches of aquatic plants 7. The collection box 63 is located outside the sealed shed 4. An air suction pump is provided in the collection box 63 to provide negative pressure for the collection hose 62; the air suction pump provides negative pressure for the collection hose 62, which facilitates the pruned branches to enter the collection box 63 through the collection hose 62.

[0046] In this embodiment, since the sealed shed 4 increases the temperature, the growth of aquatic plants 7 is promoted. The three-axis motion platform 5 can drive the trimmer 61 to move in the sealed shed 4 to trim the aquatic plants 7, thereby improving the vitality of the aquatic plants 7, and collect the trimmed branches through the collection box 63 to avoid splashing of the trimmed branches.

[0047] As a further solution of this embodiment, the trimmer 61 includes a fixed shell fixed on the three-axis motion platform 5, the fixed shell has an open structure at one end, and a pruning knife 611 is set in the fixed shell by the rotation of the motor. The pruning knife 611 includes multiple blades, and each blade of the pruning knife 611 is connected to the heating component; a collecting hose 62 connected to the collecting box 63 is opened on the side of the fixed shell, and the collecting hose 62 is a steel wire telescopic hose.

[0048] In this embodiment, each blade on the pruning knife 611 is evenly heated by the heating component, so that when the pruning knife 611 rotates to cut the aquatic plant 7, it is not only conducive to cutting off the branches of the aquatic plant 7, but also at the moment of cutting the branch, the temperature on the blade is used to disinfect the cut on the branch, promote the healing of the cut, and prevent the cut from being infected by bacteria to cause necrosis of the aquatic plant 7.

[0049] Specifically, refer to Figure 4 and Figure 5 The heating assembly includes multiple heat-conducting rods 612 and a heating ring 613. One end of each heat-conducting rod 612 is vertically fixed to each blade of the pruning knife 611. The other end of each heat-conducting rod 612 extends out of the annular opening in the middle of the fixed shell and is fixedly connected to the heating ring 613. The heating ring 613 is electrically connected to the host computer through a conductive slip ring. The multiple heat-conducting rods 612 can transfer the heat of the heating ring 613 to each blade of the pruning knife 611. The conductive slip ring can prevent the wire from being entangled when the heating ring 613 is driven to rotate by the pruning knife 611, thereby ensuring the normal operation of the heating ring 613.

[0050] An infrared temperature sensor 614 for measuring the temperature of the blades of the pruning knife 611 is installed in the fixed housing. The infrared temperature sensor 614 is electrically connected to the host computer. The infrared temperature sensor 614 is used to easily detect the temperature of the blades on the pruning knife 611, thereby facilitating the host computer to control the heating temperature of the heating ring 613 and control the temperature on the pruning knife 611 within an appropriate range.

[0051] As a further solution of this embodiment, a pair of grating sensors are horizontally mounted at two heights on the sealed shed 4. The two pairs of grating sensors are respectively a first pair of grating sensors 91 and a second pair of grating sensors 92. The first pair of grating sensors 91 is located above the second pair of grating sensors 92. The first pair of grating sensors 91 is used to trigger the host computer to activate the three-axis motion platform 5 and the trimmer 61 to perform a circuitous trimming of the aquatic plants 7. The second pair of grating sensors 92 is used to determine the trimming height of the aquatic plants 7. When the second pair of grating sensors 92 are not blocked by the aquatic plants 7, the trimming process of the aquatic plants 7 is completed.

[0052] In this embodiment, the host computer is a conventional PLC or PC in this field. In this embodiment, it is preferably a PLC, which is electrically connected to the air purification component 3, the water collection component 2, the heating ring 613, the infrared temperature sensor 614, the three-axis motion platform 5, the first pair of grating sensors 91, the second pair of grating sensors 92 and the motor in the trimmer 61.

[0053] In this embodiment, the water purification device can be used in the back end of sludge treatment in an existing sewage treatment device. Since aeration is required in the operation process of activated sludge, the oxygen concentration in the gas discharged by the water purification device after purifying the sewage will be higher than that in the air. A vacuum pump can be used to supply air to the aeration tank. At the same time, the water discharged from the activated sludge tank will contain a large amount of inorganic salts, which can provide water for the aquatic plants 7 of this water purification device.

[0054] The water purification working principle of this scheme is:

[0055] The air purification component 3 purifies the air entering the sealed shed 4 from the outside and filters impurities in the outside air; the aquatic plants 7 on each row of flow channels absorb nutrients in the sewage and grow and transpire in the sealed shed 4, thereby converting a small amount of sewage into humid air in the sealed shed 4. By condensing the humid air produced by the transpiration of plants in the sealed shed 4, clean water is obtained.

[0056] The pruning principle of this scheme is as follows:

[0057] The top of the aquatic plant 7 triggers the first pair of grating sensors, and the upper computer starts the heating ring 613. When the infrared temperature sensor 614 detects that the blade of the pruning knife 611 has reached the adapted temperature, the starting axis motion platform drives the trimmer 61 to move in a circuitous manner on the horizontal plane in the sealed shed 4 to trim the aquatic plant 7. Every time a horizontal plane movement is completed, the three-axis motion platform 5 drives the trimmer 61 to move down a height, repeating the circuitous route to continue trimming the aquatic plant 7 until the second pair of grating sensors 92 is not blocked by the aquatic plant 7, and the trimming process of the aquatic plant 7 is completed.

[0058] Although the specific embodiments of the invention are described in detail in conjunction with the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Within the scope described by the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. A water purification device utilizing plant transpiration, characterized in that: The invention comprises a sealed shed (4) arranged on a sewage channel (1), aquatic plants (7) being planted in the sewage channel (1), an air purification component (3) for purifying the air in the sealed shed (4) and a trimming component (6) for trimming the aquatic plants (7) being installed on the sealed shed (4), and a water collection component (2) for condensing the wet air in the sealed shed (4) being arranged in the sealed shed (4); The air purification component (3) includes a ventilator (31) fixed on the sealed shed (4) and connected to the outside, the air outlet of the ventilator (31) is connected to the air inlet of the coarse filter (32), the air outlet of the coarse filter (32) is connected to the air inlet of the cyclone separator (33), the clean air outlet of the cyclone separator (33) is connected to the wire mesh filter (34), the electrostatic precipitator (35) and the water curtain filter (36) in sequence, and the air outlet of the water curtain filter (36) extends into the sealed shed (4); The pruning assembly (6) includes a three-axis motion platform (5) fixed on the top of the sealed shed (4), a pruning machine (61) is fixed on the three-axis motion platform (5), and the pruning machine (61) is connected to a collection box (63) for collecting the pruned branches of the aquatic plants (7); the pruning machine (61) includes a fixed shell fixed on the three-axis motion platform (5), the fixed shell has an open structure at one end, a pruning knife (611) is rotatably arranged in the fixed shell, and each blade of the pruning knife (611) is connected to the heating assembly; a collection hose (62) is opened on the side of the fixed shell and is connected to the collection box (63); The heating assembly comprises a plurality of heat-conducting rods (612), one end of each heat-conducting rod (612) being vertically fixed to each blade of the pruning knife (611), and the other end of each heat-conducting rod (612) extending out of the annular opening in the middle of the fixed shell and being fixedly connected to a heating ring (613), and the heating ring (613) being electrically connected to a host computer via a conductive slip ring; An infrared temperature sensor (614) for measuring the temperature of a blade of the pruning knife (611) is installed in the fixed housing, and the infrared temperature sensor (614) is electrically connected to the host computer.

2. The water purification device utilizing plant transpiration according to claim 1, characterized in that: The sewage channel (1) comprises a plurality of flow channels distributed at intervals, each of the flow channels being provided with a cover plate comprising a plurality of through holes, each through hole on the cover plate being provided with a root guide ball (8) for guiding the growth direction of the roots of the aquatic plant (7), and each of the root guide balls (8) being planted with the aquatic plant (7).

3. The water purification device utilizing plant transpiration according to claim 2, characterized in that: The root guide ball (8) has a hemispherical opening structure, a plurality of lateral root tubes (81) for lateral root growth are provided on the side of the root guide ball (8), and a main root hole (82) for main root growth is provided at the bottom circular end of the root guide ball (8).

4. The water purification device utilizing plant transpiration according to claim 1, characterized in that: The water collection assembly (2) comprises a condenser (21) installed in the sealed shed (4); an air outlet of the condenser (21) is connected to an air pump (22); an exhaust pipe of the air pump (22) extends out of the sealed shed (4); and a condensate outlet of the condenser (21) is connected to a clean water pipeline.

5. The water purification device utilizing plant transpiration according to claim 1, characterized in that: The collecting box (63) is located outside the sealed shed (4), and an air suction pump for providing negative pressure for the collecting hose (62) is provided in the collecting box (63).

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