Artificial rainfall simulation system capable of preventing endophytic algae in pipeline

Abstract

The invention discloses an artificial rainfall simulation system capable of preventing endophytic algae in a pipeline, which relates to the technical field of rainfall simulation and comprises a support frame, a water storage tank, a water pump, a main water supply pipe, a plurality of rainfall nozzles, a gas injection emptying unit and a control unit. The water storage tank is connected with the water inlet through a water inlet pipe, and is provided with first and second electromagnetic switch valves for controlling water inlet and outlet; the water pump conveys water to the rainfall nozzles through the main water feeding pipe, and electromagnetic switch valves are arranged on the pipelines to control water flow. An air pump of the air injection emptying unit is communicated with the main water feeding pipe through an air injection pipe, and water accumulated in the pipeline can be emptied through air injection after rainfall is finished so as to prevent algae from growing in the pipeline. Three 120-degree side spraying type nozzles are arranged on the rainfall sprayer in the circumferential direction, so that uniform rainfall can be realized. A liquid level sensor is arranged in the water storage tank. The main water feeding pipe and the branch water feeding pipes are canvas water pipes. According to the invention, algae breeding in the pipeline is effectively prevented, blockage of the pipeline or the rainfall nozzle is avoided, long-term stable operation of the rainfall simulation system is ensured, and reliable technical support is provided for rainfall related research.

Description

Technical Field

[0001] The invention relates to the technical field of rainfall simulation, in particular to an artificial rainfall simulation system capable of preventing algae from growing in pipelines. Background Art

[0002] As the main means and important platform for simulating the rainfall process and its impact on plants, soil, etc., the artificial rainfall simulation system is of great significance. It can help study the formation and evolution of rainfall, as well as its impact on the environment and ecosystem in a short period of time. Against the backdrop of global warming, the seasonality and intensity of rainfall have changed, and the frequency and intensity of extreme rainfall events have increased, making the study of the impact of rainfall on soil and water conservation, ecohydrology, plant-water relationship and water balance a hot topic of research at home and abroad.

[0003] At present, many research institutions at home and abroad have built a large number of rainfall simulation systems. As far as the existing research is concerned, the focus is mainly on the accuracy and uniformity of rainfall equipment (rainfall nozzles), as well as the types of rainfall nozzles, such as needle type, hanging wire type, pipe network type and rainfall nozzle type. However, there is a serious lack of research on algae removal technology and algae prevention technology in rainfall pipes.

[0004] Taking the intelligent rainfall simulation system built by the Shapotou Desert Experimental Research Station of the Chinese Academy of Sciences based on the lysimeter group as an example, it was found in the experimental practice that algae in the water storage tanks and pipes of the system are very easy to breed and reproduce. This problem leads to the blockage of pipes or rainfall sprinklers, which in turn causes the rainfall accuracy and uniformity to decrease, seriously affecting the normal operation of the rainfall simulation system and the accuracy of the research results. Therefore, the development of an artificial rainfall simulation system that can effectively prevent algae from growing in pipes has urgent practical needs and important application value for ensuring the long-term stable operation of the field rainfall simulation system and promoting the in-depth development of related research. Summary of the invention

[0005] The purpose of the present invention is to provide an artificial rainfall simulation system that can prevent algae from growing in pipes, so as to solve the problems existing in the above-mentioned prior art, prevent the growth of algae in pipes, and thus avoid the blockage of pipes or rainfall sprinklers due to the presence of algae.

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

[0007] The present invention provides an artificial rainfall simulation system capable of preventing algae from growing in pipelines, comprising:

[0008] Support frame;

[0009] A water tank, wherein a water inlet is arranged at the top of the water tank, a water inlet pipe is arranged on the water inlet, a first electromagnetic switch valve is arranged on the water inlet pipe, a drain outlet is arranged at the bottom of the water tank, and a second electromagnetic switch valve is arranged on the drain outlet;

[0010] A water pump, wherein the water pump is arranged in the water storage tank;

[0011] A main water supply pipe, one end of which extends into the water storage tank and is connected to the water outlet of the water pump, the main water supply pipe is fixedly connected to the support frame, and a third electromagnetic switch valve is arranged on the main water supply pipe;

[0012] A plurality of rainfall sprinklers, each of which is arranged on the top of the support frame and is fixedly connected to the support frame, the rainfall sprinklers face downward, the water inlet of each rainfall sprinkler is connected to the main water pipe through a branch water pipe, and the rainfall sprinklers correspond to the branch water pipes one by one, and each branch water pipe is provided with a fourth electromagnetic switch valve;

[0013] an air injection and emptying unit, the air injection and emptying unit comprising an air pump, the air outlet of the air pump being connected to the main water supply pipe through an air injection pipe, the connection point between the air injection pipe and the main water supply pipe being farther away from the water pump than the third electromagnetic switch valve, and a fifth electromagnetic switch valve being arranged on the air injection pipe;

[0014] A control unit, the control unit includes a controller and a touch screen, the touch screen is connected to the controller signal, the controller is used to control the opening and closing of the first electromagnetic switch valve, the second electromagnetic switch valve, the third electromagnetic switch valve, the fourth electromagnetic switch valve, the fifth electromagnetic switch valve, the water pump and the air pump; the controller can close the first electromagnetic switch valve and the third electromagnetic switch valve while closing the water pump, and open the second electromagnetic switch valve, the fourth electromagnetic switch valve, the fifth electromagnetic switch valve and the air pump, and after maintaining the set time, close the second electromagnetic switch valve, the fourth electromagnetic switch valve, the fifth electromagnetic switch valve and the air pump.

[0015] Preferably, each rainfall sprinkler head is evenly provided with three 120° side spray nozzles circumferentially.

[0016] Preferably, a liquid level sensor connected to the controller signal is provided at the top of the water tank.

[0017] Preferably, the main water pipe and the branch water pipe are both canvas water pipes.

[0018] Preferably, the number of the rainfall nozzles is 12.

[0019] Preferably, all the rainfall nozzles are evenly distributed in the same horizontal plane.

[0020] Preferably, the main water pipe portion is located on the top of the support frame.

[0021] Preferably, the water tank and the water pump are both arranged beside the supporting frame.

[0022] Preferably, a vent hole is provided on the top of the water tank.

[0023] Preferably, the water tank is made of stainless steel.

[0024] Compared with the prior art, the present invention has achieved the following technical effects:

[0025] The artificial rainfall simulation system for preventing algae from growing in pipes of the present invention builds a complete and efficient rainfall simulation system by integrating multiple parts such as a support frame, a water storage tank, a water pump, a main water pipe, a rainfall nozzle, an air injection and emptying unit, and a control unit. The coordinated operation of each part not only realizes the basic function of rainfall simulation, but also effectively solves the problem of algae growing in pipes through a unique design, ensuring the long-term stable operation of the system, which provides a reliable technical platform for rainfall-related research.

[0026] Furthermore, a water inlet and a first electromagnetic switch valve are provided at the top of the water tank, and a drain port and a second electromagnetic switch valve are provided at the bottom. The design of the water inlet facilitates water injection, and the first electromagnetic switch valve, under the action of the control unit, can accurately control the timing and flow of water inlet to ensure that the amount of water in the water tank meets the experimental requirements. The bottom drain port cooperates with the second electromagnetic switch valve to drain the water in the water tank in time. When the water tank needs to be cleaned or maintained, the operation can be completed quickly and conveniently, while preventing algae from continuing to grow in the stagnant water, reducing the possibility of algae reproduction from the source.

[0027] Furthermore, a water pump is arranged in the water storage tank, and its water outlet is connected to the main water pipe. The water pump pressurizes the water in the water storage tank and delivers it to the main water pipe, which is fixedly connected to the support frame to ensure the stability of the water delivery process. The third electromagnetic switch valve is arranged on the main water pipe to control the on-off of the water flow in the main pipeline. When the system stops running, closing the third electromagnetic switch valve can prevent water from being retained in the pipeline for a long time and reduce the risk of algae growth. Moreover, the stable connection between the main water pipe and the support frame ensures the reliable operation of the entire water delivery system and avoids problems such as leakage caused by shaking or displacement.

[0028] Furthermore, a plurality of rainfall sprinklers are arranged on the top of the support frame, installed downward and connected to the main water pipe through the branch water pipe, and a fourth electromagnetic switch valve is arranged on each branch water pipe. The rainfall sprinklers correspond to the branch water pipes one by one, and the fourth electromagnetic switch valve can independently control the working state of each rainfall sprinkler, which makes it possible to flexibly adjust the opening quantity and distribution of the rainfall sprinklers when simulating rainfall, so as to achieve simulation of different rainfall intensities and uniformities. At the same time, the connection method between the rainfall sprinklers and the branch water pipes and the setting of the electromagnetic switch valve are conducive to quickly emptying the accumulated water in the pipe after the system stops running, thereby reducing the living environment of algae.

[0029] Furthermore, the air pump of the air injection and emptying unit is connected to the main water pipe through the air injection pipe, and the connection point is farther away from the water pump than the third electromagnetic switch valve. After the rainfall simulation system is finished, the control unit starts the air pump, and the airflow generated by the air pump enters the main water pipe through the air injection pipe, and then reaches each rainfall nozzle through the branch water pipe to dry the residual water in the pipe. This design can effectively inhibit the growth of algae in a humid environment, fundamentally solve the problem of algae reproduction caused by water accumulation in the pipe, greatly extend the service life of the pipe, and improve the stability and reliability of the system operation.

[0030] Furthermore, the controller of the control unit can uniformly control the opening and closing of the first electromagnetic switch valve, the second electromagnetic switch valve, the third electromagnetic switch valve, the fourth electromagnetic switch valve, the fifth electromagnetic switch valve, the water pump and the air pump. Through the pre-set program, the controller can accurately control the entire rainfall simulation process according to the experimental requirements, including water intake, drainage, water delivery, and air injection and emptying. This intelligent control method not only improves the accuracy and repeatability of the experiment, but also greatly improves the operating efficiency of the system, reduces the cost of manual operation, and ensures the coordinated work of various parts of the equipment, effectively preventing the occurrence of algae problems in the pipeline.

[0031] Furthermore, three 120° side spray nozzles are evenly arranged on each rainfall sprinkler. This design enables the water sprayed by the rainfall sprinkler to cover the target area more evenly, simulating an effect closer to natural rainfall. At the same time, the multi-angle water spraying method also reduces the experimental error caused by the concentration or uneven dispersion of local water flow, and improves the accuracy and reliability of rainfall simulation.

[0032] Furthermore, a liquid level sensor connected to the controller signal is set at the top of the water tank. The liquid level sensor monitors the water level in the water tank in real time and feeds back the signal to the controller. The controller automatically controls the opening and closing of the first electromagnetic switch valve according to the liquid level information to ensure that the water tank always maintains a suitable water level, which not only avoids the risk of overflow caused by too high water level, but also prevents the normal operation of the system from being affected by too low water level, further ensuring the stable operation of the system and the smooth progress of the experiment.

[0033] Furthermore, the main water pipe and branch water pipe adopt canvas water pipe, which has the advantages of good flexibility and lightness. Good flexibility enables the pipe to flexibly adapt to different terrains and experimental layout requirements during installation and use, reducing the problem of poor water flow caused by pipe bending. The lightness reduces the installation difficulty and cost of the entire system. At the same time, the canvas material is relatively difficult to attach algae, and combined with the design of air injection and emptying unit, it can better prevent algae from growing in the pipe.

[0034] Furthermore, there are 12 rainfall nozzles evenly distributed in the same horizontal plane. This setting ensures the coverage and uniformity of rainfall simulation. During the experiment, the simulated rainfall can be evenly applied to the experimental area, avoiding the problem of excessive differences in local rainfall intensity due to uneven distribution of rainfall nozzles, and providing more accurate experimental conditions for studying the impact of rainfall on plants, soil, etc.

[0035] Furthermore, the main water pipe is located on the top of the support frame. This layout makes the connection between the main water pipe and the rainfall sprinkler more compact and reasonable, reduces the head loss during the water delivery process, and improves the water delivery efficiency. At the same time, the compact layout is also easy to maintain and manage, reducing the risk of failure caused by too long pipes or complex layouts.

[0036] Furthermore, the water tank and water pump are arranged next to the support frame, which facilitates the installation, maintenance and overhaul of the equipment. At the same time, placing the water tank and water pump in a close position shortens the length of the connecting pipe between the water pump and the water tank, reduces water flow resistance, improves the water delivery efficiency of the system, and is beneficial to the stability and aesthetics of the overall system.

[0037] Furthermore, a vent hole is provided on the top of the water tank, and the existence of the vent hole ensures the air pressure balance in the water tank. During the water intake and drainage process, the vent hole can avoid problems such as poor water flow or water tank deformation caused by air pressure changes, ensuring the normal operation of the water tank, and also helping to reduce the impact of unstable air pressure on the algae breeding environment.

[0038] Furthermore, the water tank is made of stainless steel, which has high strength and hardness and can withstand greater pressure and weight. This allows stainless steel water tanks to be designed in various shapes and sizes to meet different water storage needs. Even when storing a large amount of water, they can maintain structural stability and are not prone to deformation or cracking. Compared with some plastic or fiberglass water tanks, stainless steel water tanks have obvious advantages in strength and can better adapt to different installation environments and use conditions. For example, in high-rise buildings, industrial plants and other places, stainless steel water tanks can reliably store and supply water. Since stainless steel has strong corrosion resistance and is not easy to rust and damage, it does not require frequent anti-corrosion treatment and maintenance during use. Compared with some easily corroded materials, such as cast iron water tanks, stainless steel water tanks can save a lot of maintenance costs and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 It is a structural schematic diagram of the artificial rainfall simulation system for preventing algae from growing in pipelines according to the present invention;

[0041] In the figure: 1. support frame; 2. water storage tank; 3. main water pipe; 4. branch water pipe; 5. rainfall nozzle; 6. water inlet pipe; 7. first solenoid switch valve; 8. second solenoid switch valve; 9. third solenoid switch valve; 10. fourth solenoid switch valve; 11. fifth solenoid switch valve; 12. water pump; 13. liquid level sensor; 14. air pump; 15. controller; 16. touch screen. DETAILED DESCRIPTION

[0042] 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.

[0043] The purpose of the present invention is to provide an artificial rainfall simulation system that can prevent algae from growing in pipes, so as to solve the problems existing in the above-mentioned prior art, prevent the growth of algae in pipes, and thus avoid the blockage of pipes or rainfall sprinklers due to the presence of algae.

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] like Figure 1 As shown, this embodiment provides an artificial rainfall simulation system capable of preventing algae from growing in pipes, comprising:

[0046] Support frame 1;

[0047] A water tank 2 is provided with a water inlet at the top of the water tank 2, a water inlet pipe 6 is provided on the water inlet, and a first electromagnetic switch valve 7 is provided on the water inlet pipe 6. The design of the water inlet and the water inlet pipe 6 is convenient for water injection. Under the action of the control unit, the first electromagnetic switch valve 7 can accurately control the timing and flow of water inlet to ensure that the amount of water in the water tank 2 meets the experimental requirements; a drain outlet is provided at the bottom of the water tank 2, and a second electromagnetic switch valve 8 is provided on the drain outlet. The water in the water tank 2 can be emptied in time through the drain outlet. When the water tank 2 needs to be cleaned or maintained, the operation can be completed quickly and conveniently, and at the same time, algae can be prevented from continuing to grow in the stagnant water, thereby reducing the possibility of algae reproduction from the source;

[0048] A water pump 12, which is disposed in the water storage tank 2, and is used to pressurize the water in the water storage tank 2 and transport it to the main water supply pipe 3;

[0049] The main water pipe 3, one end of which extends into the water storage tank 2 and is connected to the water outlet of the water pump 12, is fixedly connected to the support frame 1, thereby ensuring the stability of the water delivery process. The main water pipe 3 is provided with a third electromagnetic switch valve 9, which is arranged on the main water pipe 3 and can control the on-off of the water flow in the main pipeline; when the system stops running, closing the third electromagnetic switch valve 9 can prevent water from being retained in the pipeline for a long time, thereby reducing the risk of algae breeding;

[0050] Multiple rain nozzles 5, each rain nozzle 5 is arranged on the top of the support frame 1 and is fixedly connected to the support frame 1, the rain nozzle 5 faces downward, the water inlet of each rain nozzle 5 is connected to the main water pipe 3 through the branch water pipe 4, and the rain nozzle 5 corresponds to the branch water pipe 4 one by one, and each branch water pipe 4 is provided with a fourth electromagnetic switch valve 10, which can independently control the working state of each rain nozzle 5, so that when simulating rainfall, the opening number and distribution of the rain nozzle 5 can be flexibly adjusted to achieve simulation of different rainfall intensities and uniformity. At the same time, the connection method between the rain nozzle 5 and the branch water pipe 4 and the setting of the electromagnetic switch valve are conducive to quickly emptying the accumulated water in the pipe after the system stops running, reducing the living environment of algae;

[0051] The air injection and emptying unit includes an air pump 14. The air outlet of the air pump 14 is connected to the main water pipe 3 through an air injection pipe. The connection point between the air injection pipe and the main water pipe 3 is farther away from the water pump 12 than the third electromagnetic switch valve 9. The fifth electromagnetic switch valve 11 is arranged on the air injection pipe. After the operation of the rainfall simulation system is finished, the control unit starts the air pump 14. The airflow generated by the air pump 14 enters the main water pipe 3 through the air injection pipe, and then reaches each rainfall nozzle 5 through the branch water pipe 4 to dry the residual water in the pipe. This design can effectively inhibit the growth of algae in a humid environment, fundamentally solves the problem of algae reproduction caused by water accumulation in the pipe, greatly prolongs the service life of the pipe, and improves the stability and reliability of the system operation.

[0052] The control unit includes a controller 15 and a touch screen 16. The controller 15 is used to control the opening and closing of the first electromagnetic switch valve 7, the second electromagnetic switch valve 8, the third electromagnetic switch valve 9, the fourth electromagnetic switch valve 10, the fifth electromagnetic switch valve 11, the water pump 12 and the air pump 14. Through the pre-set program, the controller 15 can accurately control the entire rainfall simulation process according to the experimental requirements, including water intake, drainage, water delivery, gas injection and emptying and other links; for example, the specific visual process of gas injection and emptying is: the pre-set program in the controller 15 enables the controller 15 to close the first electromagnetic switch valve 7 and the third electromagnetic switch valve 9 while closing the water pump 12, and open the second electromagnetic switch valve 8, the fourth electromagnetic switch valve 10, the fifth electromagnetic switch valve 11 and the air pump 14, and after maintaining the set time (the specific size of the time is determined by the technician according to the drainage time of the water storage tank 2 and the time required for gas injection and emptying), close the second electromagnetic switch valve 8, the fourth electromagnetic switch valve 10, the fifth electromagnetic switch valve 11 and the air pump 14. The controller 15 can be controlled by the touch screen 16, and the touch screen 16 can also display the operating status of each electromagnetic switch valve, the water pump 12 and the air pump 14, and can also display the operating status of the entire system, such as shutdown, simulated rainfall, and air injection and emptying. This intelligent control method not only improves the accuracy and repeatability of the experiment, but also greatly improves the operating efficiency of the system, reduces the cost of manual operation, and ensures the coordinated work of various parts of the equipment, effectively preventing the occurrence of algae problems in pipelines.

[0053] In the optional solution of this embodiment, it is more preferred that three 120° side spray nozzles are evenly arranged on each rainfall nozzle 5 in the circumferential direction. This design enables the water flow sprayed by the rainfall nozzle 5 to cover the target area more evenly, simulating an effect closer to natural rainfall. At the same time, the multi-angle water spraying method also reduces the experimental error caused by the uneven concentration or dispersion of local water flow, and improves the accuracy and reliability of rainfall simulation.

[0054] In the optional scheme of this embodiment, it is more preferred that a liquid level sensor 13 connected to the controller 15 signal is arranged on the top of the water tank 2, and the liquid level sensor 13 monitors the water level in the water tank 2 in real time and feeds back the signal to the controller 15. The controller 15 automatically controls the opening and closing of the first electromagnetic switch valve 7 according to the liquid level information to ensure that the water tank 2 always maintains a suitable water level, which not only avoids the overflow risk caused by too high a water level, but also prevents the normal operation of the system from being affected by too low a water level, further ensuring the stable operation of the system and the smooth progress of the experiment.

[0055] Among the optional schemes of the present embodiment, it is more preferred that both the main water pipe 3 and the branch water pipe 4 are made of canvas water pipes. The canvas water pipes have the advantages of good flexibility and lightness. The good flexibility enables the pipes to flexibly adapt to different terrains and experimental layout requirements during installation and use, reducing the problem of poor water flow caused by pipe bending. The lightness reduces the installation difficulty and cost of the entire system. At the same time, the canvas material is relatively difficult to attach algae, and combined with the design of air injection and emptying unit, it can better prevent algae from growing in the pipe.

[0056] In the optional scheme of this embodiment, it is more preferred that the number of rainfall nozzles 5 is 12 and all rainfall nozzles 5 are evenly distributed in the same horizontal plane. This setting ensures the coverage and uniformity of rainfall simulation. During the experiment, the simulated rainfall can be evenly applied to the experimental area, avoiding the problem of excessive differences in local rainfall intensity due to uneven distribution of rainfall nozzles 5, and providing more accurate experimental conditions for studying the impact of rainfall on plants, soil, etc.

[0057] In the optional scheme of this embodiment, it is more preferred that the main water pipe 3 is partially located on the top of the support frame 1. This layout makes the connection between the main water pipe 3 and the rainfall sprinkler 5 more compact and reasonable, reduces the head loss during the water delivery process, and improves the water delivery efficiency. At the same time, the compact layout is also convenient for maintenance and management, reducing the risk of failure caused by too long pipes or complex layouts.

[0058] In the optional scheme of this embodiment, it is more preferred that the water tank 2 and the water pump 12 are both arranged beside the support frame 1. This design facilitates the installation, maintenance and overhaul of the equipment. At the same time, placing the water tank 2 and the water pump 12 in a similar position shortens the length of the connecting pipe between the water pump 12 and the water tank 2, reduces the water flow resistance, improves the water delivery efficiency of the system, and is conducive to the stability and aesthetics of the overall system.

[0059] In the optional scheme of this embodiment, preferably, a vent hole is provided on the top of the water storage tank 2, and the existence of the vent hole ensures the air pressure balance in the water storage tank 2. During the water intake and drainage process, the vent hole can avoid problems such as poor water flow or water tank deformation caused by air pressure changes, ensure the normal operation of the water storage tank 2, and also help reduce the impact of unstable air pressure on the algae breeding environment.

[0060] In the optional scheme of the present embodiment, it is more preferred that the material of the water storage tank 2 is stainless steel, which has high strength and hardness and can withstand greater pressure and weight. This allows the stainless steel water storage tank to be designed in various shapes and sizes to meet different water storage needs. Even when storing a large amount of water, the structural stability can be maintained and it is not easy to deform or break. Compared with some water tanks made of plastic or fiberglass, stainless steel water tanks have obvious advantages in strength and can better adapt to different installation environments and use conditions. For example, in places such as high-rise buildings and industrial plants, stainless steel water tanks can reliably store and supply water. Since stainless steel has strong corrosion resistance and is not easy to rust and damage, it does not need to be frequently treated with corrosion protection and repair during use. Compared with some easily corroded materials, such as cast iron water tanks, stainless steel water tanks can save a lot of maintenance costs and time costs.

[0061] The specific method of using the artificial rainfall simulation system capable of preventing algae from growing in pipes in this embodiment is as follows:

[0062] Simulate rainfall process: first, water is injected into the water tank 2, and the control unit (controller 15) sends a signal to open the first electromagnetic switch valve 7 on the water inlet pipe 6, and the water source enters the water tank 2 through the water inlet pipe 6; the liquid level sensor 13 at the top of the water tank 2 monitors the water level in real time and feeds back the signal to the controller 15; when the water level reaches the set value, the controller 15 closes the first electromagnetic switch valve 7 to stop water inflow;

[0063] When the rainfall simulation is started, the controller 15 turns on the water pump 12 in the water tank 2, the third electromagnetic switch valve 9 on the main water pipe 3, and the fourth electromagnetic switch valve 10 on the branch water pipe 4; the water pump 12 pumps the water in the water tank 2 out, and transports it through the main water pipe 3 after pressurization; the water is then distributed to each rainfall nozzle 5 through the branch water pipe 4; each rainfall nozzle 5 is evenly arranged with three 120° side spray nozzles in the circumference, and the downward rainfall nozzle 5 sprays water evenly through these nozzles to simulate rainfall; since the number of rainfall nozzles 5 is 12 and they are evenly distributed in the same horizontal plane, it can ensure uniform coverage of rainfall in a certain area, and realize effective simulation of the rainfall process; after the simulated rainfall is completed, drainage is required: the controller 15 turns on the second electromagnetic switch valve 8 at the drain outlet at the bottom of the water tank 2 to drain the water in the water tank 2;

[0064] After each rainfall simulation, the controller 15 starts the air pump 14 of the air injection and emptying unit, closes the third electromagnetic switch valve 9 and opens the fourth electromagnetic switch valve 10; the gas generated by the air pump 14 enters the main water pipe 3 through the air injection pipe, and reaches each rainfall nozzle 5 through the branch water pipe 4; the gas is used to dry the residual moisture in the main water pipe 3 and the branch water pipe 4 to avoid the pipe being in a humid environment for a long time; since algae need moisture to grow and reproduce, this method destroys the conditions for algae growth, effectively preventing algae from growing in the pipe, thereby avoiding the blockage of the pipe or rainfall nozzle 5 caused by algae reproduction;

[0065] During the entire working process, under the unified coordination of the control unit, various components complete operations such as water intake, rainfall simulation, drainage and prevention of algae growth in pipes in an orderly manner, ensuring the normal operation of the system and the realization of the key function of preventing algae growth in pipes.

[0066] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An artificial rainfall simulation system capable of preventing algae from growing in pipes, characterized in that: include: Support frame; A water tank, wherein a water inlet is arranged at the top of the water tank, a water inlet pipe is arranged on the water inlet, a first electromagnetic switch valve is arranged on the water inlet pipe, a drain outlet is arranged at the bottom of the water tank, and a second electromagnetic switch valve is arranged on the drain outlet; A water pump, wherein the water pump is arranged in the water storage tank; A main water supply pipe, one end of which extends into the water storage tank and is connected to the water outlet of the water pump, the main water supply pipe is fixedly connected to the support frame, and a third electromagnetic switch valve is arranged on the main water supply pipe; A plurality of rainfall sprinklers, each of which is arranged on the top of the support frame and is fixedly connected to the support frame, the rainfall sprinklers face downward, the water inlet of each rainfall sprinkler is connected to the main water pipe through a branch water pipe, and the rainfall sprinklers correspond to the branch water pipes one by one, and each branch water pipe is provided with a fourth electromagnetic switch valve; an air injection and emptying unit, the air injection and emptying unit comprising an air pump and an air injection pipe, the air outlet of the air pump is connected to the main water supply pipe through the air injection pipe, the connection point between the air injection pipe and the main water supply pipe is farther away from the water pump than the third electromagnetic switch valve, and a fifth electromagnetic switch valve is arranged on the air injection pipe; A control unit, the control unit includes a controller and a touch screen, the touch screen is connected to the controller signal, the controller is used to control the opening and closing of the first electromagnetic switch valve, the second electromagnetic switch valve, the third electromagnetic switch valve, the fourth electromagnetic switch valve, the fifth electromagnetic switch valve, the water pump and the air pump; the controller can close the first electromagnetic switch valve and the third electromagnetic switch valve while closing the water pump, and open the second electromagnetic switch valve, the fourth electromagnetic switch valve, the fifth electromagnetic switch valve and the air pump, and after maintaining the set time, close the second electromagnetic switch valve, the fourth electromagnetic switch valve, the fifth electromagnetic switch valve and the air pump.

2. The artificial rainfall simulation system capable of preventing algae from growing in pipes according to claim 1, characterized in that: Each rainfall sprinkler head is evenly provided with three 120° side spray nozzles circumferentially.

3. The artificial rainfall simulation system capable of preventing algae from growing in pipes according to claim 1, characterized in that: A liquid level sensor connected to the controller signal is arranged on the top of the water tank.

4. The artificial rainfall simulation system capable of preventing algae from growing in pipes according to claim 1, characterized in that: The main water pipe and the branch water pipe are both made of canvas water pipes.

5. The artificial rainfall simulation system capable of preventing algae from growing in pipes according to claim 1, characterized in that: The number of the rainfall sprinkler heads is 12.

6. The artificial rainfall simulation system capable of preventing algae from growing in pipes according to claim 1, characterized in that: All the rainfall sprinklers are evenly distributed in the same horizontal plane.

7. The artificial rainfall simulation system capable of preventing algae from growing in pipes according to claim 1, characterized in that: The main water pipe portion is located on the top of the support frame.

8. The artificial rainfall simulation system capable of preventing algae from growing in pipes according to claim 1, characterized in that: The water storage tank and the water pump are both arranged beside the supporting frame.

9. The artificial rainfall simulation system capable of preventing algae from growing in pipes according to claim 1, characterized in that: The top of the water tank is provided with an air hole.

10. The artificial rainfall simulation system capable of preventing algae from growing in pipes according to claim 1, characterized in that: The water storage tank is made of stainless steel.

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