Novel buried integrated drip irrigation pump station and operation method

Abstract

The invention relates to the technical field of irrigation pump stations, and discloses a novel buried integrated drip irrigation pump station which comprises a cylindrical pump station barrel, a water inlet pipe is connected to the water inlet side of a drip irrigation pump, a water outlet pipe is arranged on the other side of the pump station barrel, and a filtering mechanism is arranged between the water outlet side of the drip irrigation pump and the water outlet pipe; the plurality of well mouths are formed in the pump station barrel, the pump station barrel is further provided with a ventilation assembly with a ventilation pipe and a fan, and a control cabinet is installed on the ground above the pump station barrel; the water collecting tank and the sewage discharging mechanism are arranged on one side of the pump station barrel. The device is simple in structure and convenient to install, is pre-assembled and debugged in a pump station cylinder before leaving a factory, can be put into use only by fixing a concrete foundation and connecting a water inlet and outlet pipe on site, reduces on-site construction steps, and improves construction efficiency. The problems that agricultural irrigation cannot be guaranteed and the maintenance cost is high due to uneven construction quality caused by the fact that a drip irrigation pump station is influenced by external factors in the construction process are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of irrigation pump stations, in particular to a new type of buried integrated drip irrigation pump station and operation method. BACKGROUND

[0002] In the process of farmland irrigation, it is usually necessary to use a pump station to pump water from a water source to the farmland for irrigation. The existing farmland irrigation pump station usually includes a pump station body, a water pump and a water delivery pipeline, and its working principle is to pump water from the water source into the pump station body by the water pump, and then deliver the water to the farmland through the water delivery pipeline to realize irrigation and fertilization of the farmland. The various components used in the conventional construction of drip irrigation pump stations are uneven in quality due to the influence of the environment, such as temperature, humidity, and the skill of the assembly workers, which leads to some irrigation pump stations not being able to guarantee irrigation and water supply, and increases the maintenance workload of the manufacturers. Therefore, some users and manufacturers of farmland irrigation pump stations hope to have a simple and stable irrigation pump station for automatic irrigation, so as to improve production efficiency and reduce maintenance costs. SUMMARY

[0003] To solve the above technical problems, the present application provides a new type of buried integrated drip irrigation pump station and operation method, which solves the problems of long on-site assembly period, uneven quality caused by external factors, lack of irrigation and water supply guarantee, and increased maintenance workload.

[0004] To achieve the above purpose, the technical scheme of the present application is as follows: A new type of buried integrated drip irrigation pump station, comprising: A cylindrical pump station cylinder, which is placed horizontally and has a concrete foundation inside, a drip irrigation pump is installed on the concrete foundation, a water inlet pipe is connected to the water inlet side of the drip irrigation pump, a water outlet pipe is provided on the other side of the pump station cylinder, a filter mechanism is provided between the water outlet side of the drip irrigation pump and the water outlet pipe, and the filter mechanism comprises a centrifugal filter and a laminated filter; A plurality of wellheads are opened on the pump station cylinder, a ventilation assembly with a ventilation pipe and a fan is further provided on the pump station cylinder, and a control cabinet is installed on the ground above the pump station cylinder; A water collecting pool and a sewage discharge mechanism are provided on one side of the pump station cylinder.

[0005] As a preferred embodiment of the present application, a butterfly valve is connected between the water inlet of the drip irrigation pump and the water inlet pipe, and a valve group is provided between the water outlet of the drip irrigation pump and the filter mechanism.

[0006] As a preferred scheme of the present application, the centrifugal filter and the laminated filter are connected in series, and the fluid delivered by the drip irrigation pump passes through the centrifugal filter and the laminated filter in sequence.

[0007] As a preferred scheme of the present application, the water collecting pool is composed of the in-cylinder concrete base and the circumference and bottom wall of the pump station cylinder.

[0008] As a preferred scheme of the present application, the sewage discharge mechanism comprises a sewage pump and a sewage pump outlet pipe, the sewage pump is installed in the water collecting pool, one end of the sewage pump outlet pipe is installed at the water outlet of the sewage pump, and the other end of the sewage pump outlet pipe extends to outside of the pump station cylinder.

[0009] As a preferred scheme of the present application, an automatic dosing system is further included, the automatic dosing system comprises an automatic dosing and fertilizing tank and an in-cylinder pipeline module, the automatic dosing and fertilizing tank is arranged on the ground above the pump station cylinder, and the automatic dosing and fertilizing tank is connected to the filtering mechanism through the in-cylinder pipeline module to realize automatic dosing and fertilizing by using pressure difference.

[0010] As a preferred scheme of the present application, the automatic dosing and fertilizing tank is a pressure difference dosing and fertilizing tank, and the pressure difference dosing and fertilizing tank has a horizontal structure and adopts a lower inlet and upper outlet interface.

[0011] As a preferred scheme of the present application, the in-cylinder pipeline module comprises an interface end extending to outside of the pump station cylinder and a pressure boosting assembly, the interface end comprises a liquid inlet and a liquid outlet, the inlet of the pressure difference dosing and fertilizing tank is connected to the liquid inlet of the interface end, the outlet of the pressure difference dosing and fertilizing tank is connected to the liquid outlet of the interface end, the pressure boosting assembly is a micro pressure boosting pump, the micro pressure boosting pump is used to increase water pressure of inlet water, and a pressure sensor is arranged at a pressurizing access point of the filtering mechanism.

[0012] As a preferred scheme of the present application, the outlet of the pressure difference dosing and fertilizing tank is connected to the liquid outlet of the interface end through an ejector.

[0013] A running method of a novel buried integrated drip irrigation pump station, comprising the following steps: System starting preparation: checking the state of a control cabinet installed on the ground above the pump station cylinder, ensuring that the electrical connection of the control cabinet with the drip irrigation pump, the sewage pump, the ventilation assembly and the automatic dosing system is normal, and confirming that the water collecting pool composed of the in-cylinder concrete base and the circumference and bottom wall of the pump station cylinder has no initial water accumulation; Water inlet pressurization operation: opening a butterfly valve between a water inlet pipe and a water inlet of the drip irrigation pump, starting the drip irrigation pump through the control cabinet, and delivering the fluid after being pressurized by the drip irrigation pump to the filtering mechanism through a valve group between the water outlet of the drip irrigation pump and the filtering mechanism. Multi-stage filtration: The pressurized fluid flows through a centrifugal filter and a disc filter arranged in series. First, the centrifugal filter separates large particles of mud and sand from the fluid, and then the disc filter filters out fine suspended impurities to obtain clean fluid that meets the requirements of drip irrigation water quality. Automatic dosing / fertilizing: Utilizing a horizontal differential pressure dosing and fertilizing tank installed on the ground above the pump station cylinder, fluid is introduced through the inlet of the interface end of the pipeline module inside the cylinder. The micro booster pump in the pipeline module inside the cylinder is activated to increase the inlet water pressure. Combined with the monitoring signal of the pressure sensor at the pressurization access point of the filter mechanism, the agent or fertilizer in the differential pressure dosing and fertilizing tank is delivered to the outlet pipeline of the filter mechanism through the outlet end and ejector under the action of water pressure difference, and mixed with the clean fluid to form a drip irrigation solution containing the agent / fertilizer. Drip irrigation water supply: The drip irrigation solution containing pesticides / fertilizers is delivered to the farmland drip irrigation system through the outlet pipe on the other side of the pump station cylinder to complete the farmland drip irrigation operation; Sewage Discharge and System Monitoring: During operation, the water collection tank collects the seepage water inside the pump station cylinder. When the water reaches the preset amount, the control cabinet automatically starts the sewage pump and discharges the water to the outside of the pump station cylinder through the sewage pump outlet pipe. At the same time, the control cabinet monitors the output pressure of the drip irrigation pump, the operating status of the filter mechanism, and the dosage of the automatic dosing system in real time, and dynamically adjusts the operating parameters of each component based on the monitoring data. System shutdown: After the drip irrigation operation is completed, turn off the drip irrigation pump, the micro booster pump, the butterfly valve and valve group in sequence through the control cabinet, and finally turn off the sewage pump and ventilation components.

[0014] The beneficial technical effects of this invention are: This invention has a simple structure and is easy to install. It is pre-assembled and debugged in the pump station cylinder before leaving the factory. On-site, only the concrete foundation needs to be fixed and the inlet and outlet water pipes need to be connected before it can be put into use. This reduces on-site construction steps and solves the problem that the construction quality of drip irrigation pump stations is inconsistent due to external factors, resulting in unreliable agricultural irrigation and high maintenance costs.

[0015] In this invention, the pump station cylinder is equipped with an internal concrete foundation, which facilitates the installation of equipment inside the pump station cylinder. A water collection pool is designed based on the internal concrete foundation, and a sewage discharge mechanism is configured to promptly discharge liquid inside the pump station cylinder in the event of accidental leakage, ensuring the safe operation of equipment inside the pump station cylinder and strengthening protection.

[0016] The present invention also includes a filtration mechanism consisting of a centrifugal filter and a disc filter, as well as an automatic dosing and fertilization system. It utilizes pressure difference to automate the dosing or fertilization process. The structure is ingenious, and the filtration, dosing or fertilization process is stable, ensuring the quality of drip irrigation.

[0017] The automatic dosing fertilization system in the application is improved based on the buried pump station cylinder, the differential pressure dosing fertilization tank is arranged above the pump station cylinder, so as to facilitate dosing, fertilization and daily maintenance, the in-cylinder pipeline module is arranged, the connection between the differential pressure dosing fertilization tank and the filtering mechanism is realized, and the booster assembly is designed, so as to guarantee the pressure requirement after the pipeline is extended, the in-cylinder pipeline module can be made into a separate module, so as to facilitate the installation with the pump station cylinder and guarantee the stability of operation, and the jet flow device is also designed, the jet flow device is connected in series between the outlet end of the dosing tank and the inlet of the lamination filter before the transverse pipe bank, through the synergistic effect of high-speed jet flow, negative pressure suction, turbulent mixing and diffusion uniform distribution, the existing pressure can be fully utilized to drive dosing, the mixing efficiency of the fertilizer liquid and the irrigation water can be improved, and the jet flow device is a core guarantee component for realizing efficient, accurate and low-consumption operation of the external dosing fertilization tank. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view schematic diagram of the pump station cylinder in the application; Figure 2 It is a top view schematic diagram of the application; Figure 3 It is a partial side view schematic diagram of the application; Figure 4 It is a schematic diagram of the principle of the automatic dosing fertilization system in the application.

[0019] In the drawing: 1, in-cylinder concrete foundation; 2, pump station cylinder; 3, drip irrigation pump; 4, water inlet pipe; 5, water outlet pipe; 6, valve group; 7, sewage pump water outlet pipe; 8, butterfly valve; 9, filtering mechanism; 10, water collecting pool; 11, sewage pump; 12, well lid; 13, ventilation assembly; 14, control cabinet; 15, ladder; 16, automatic dosing and fertilization tank; 17, in-cylinder pipeline module; 171, interface end; 172, booster assembly. DETAILED DESCRIPTION

[0020] In order to more clearly understand the technical means of the application and can be implemented according to the content of the specification, the specific embodiments of the application are further described in detail below, the following examples are used to illustrate the application, but not to limit the scope of the application.

[0021] In combination Figure 1 With the above-mentioned technical scheme, Figure 4 The application provides the following examples: A novel buried integrated drip irrigation pump station comprises: The pump station cylinder 2 is cylindrical, is buried underground, a buried pit is dug underground, and a concrete cushion, foundation pre-embedded bottom plate and the like are constructed at the bottom of the buried pit, such as Figure 1The pump station barrel 2 is made of glass fiber and unsaturated resin material, which has good structural strength and corrosion resistance, and is low in price, facilitating large-scale production of the application. It is also more economical than a steel barrel in transportation and hoisting. The pump station barrel 2 is placed transversely and has a concrete foundation 1 inside, on which a drip irrigation pump 3 is installed. The water inlet side of the drip irrigation pump 3 is connected with a water inlet pipe 4, and the other side of the pump station barrel 2 is provided with a water outlet pipe 5. A filtering mechanism is arranged between the water outlet side of the drip irrigation pump 3 and the water outlet pipe 5, and the filtering mechanism includes a centrifugal filter and a laminated filter. A plurality of wellheads are opened in the pump station barrel 2, and well covers 12 and safety grilles are arranged at the wellheads. A ladder 15 is arranged between one of the wellheads and the bottom of the pump station barrel 2 for easy access. A ventilation assembly 13 with a ventilation pipe and a fan is arranged on the pump station barrel 2, and a control cabinet 14 is installed on the ground above the pump station barrel 2. A water collecting pool 10 and a sewage discharge mechanism are arranged on one side of the pump station barrel 2, and the water collecting pool 10 can be designed to detect the liquid level.

[0022] Before starting, check the electrical connection of each part and the water accumulation in the water collecting pool 10 through the control cabinet 14; after starting, the drip irrigation pump 3 pressurizes the water source water through the water inlet pipe 4, delivers it to the filtering mechanism for purification, and then delivers the purified water to the farmland pipe network through the water outlet pipe 5 to complete the drip irrigation operation; during operation, the ventilation assembly 13 is started regularly to realize air circulation in the barrel, the control cabinet 14 monitors the equipment state in real time, the water collecting pool 10 collects the leakage water in the barrel, and the sewage discharge mechanism discharges the water.

[0023] The ventilation assembly 13 reduces the humidity in the barrel and discharges odors through air circulation to ensure the safety of maintenance personnel; the enclosed structure of the water collecting pool utilizes the waterproofness of concrete and the airtightness of the barrel to form an independent water collection space, avoiding soaking of the core equipment, and cooperating with the liquid level detection and the sewage discharge mechanism to realize automatic sewage discharge.

[0024] Further, a butterfly valve 8 is connected between the water inlet of the drip irrigation pump 3 and the water inlet pipe 4, and a valve group 6 is arranged between the water outlet of the drip irrigation pump 3 and the filtering mechanism. Specifically, the valve group 6 includes a butterfly valve and a check valve, and the check valve of the valve group 6 prevents the water from flowing back to the pump body from the filtering mechanism side; when stopping, the butterfly valves 8 and 6 are closed first to cut off the water flow, avoiding water hammer impact and pump impeller reversal.

[0025] Further, the centrifugal filter and the laminated filter are connected in series, and the fluid delivered by the drip irrigation pump 3 passes through the centrifugal filter and the laminated filter in sequence. Specifically, the centrifugal filter utilizes the centrifugal force difference to realize solid-liquid separation, and can remove large-particle impurities without filter screen, avoiding pressure loss caused by filter screen blockage; the laminated filter utilizes the gap interception principle, and the multiple laminated filters form dense filtration channels, which can accurately intercept small impurities, and the detachable laminated filters prolong the service life of the filtration elements; the series connection design makes the two filtering principles complementary, first removing large impurities to protect the laminated filter, then fine filtering to protect water quality, and improving the overall filtering efficiency. The series connection filtering improves the overall filtering efficiency, completely solves the drip irrigation hole blockage problem; the centrifugal filter does not need to be cleaned frequently, and the cleaning cycle of the laminated filter is prolonged, thereby reducing the maintenance man-hours per year; the service life of the filtration elements is prolonged, and the replacement cost of the filtration components is reduced.

[0026] Further, the water collecting pool 10 is composed of the circumferential wall and the bottom wall of the pump station cylinder 2 and the inner concrete foundation 1. Specifically, during the operation of the pump station, the accumulated water generated by pipeline leakage and condensation flows along the surface of the inner concrete foundation 1 to the water collecting pool 10. When the accumulated water reaches the preset water level, the sewage discharge mechanism is started to discharge the accumulated water, thereby avoiding overflow of the accumulated water. In the present application, the water collecting pool 10 is composed of the circumferential wall and the bottom wall of the pump station cylinder 2 and the side wall of the inner concrete foundation 1, and does not need to be designed separately, which is ingenious in structure, saves the inner space of the cylinder, reduces the construction cost, and is convenient to use.

[0027] Further, the sewage discharge mechanism includes a sewage pump 11 and a sewage pump outlet pipe 7. The sewage pump 11 is installed in the water collecting pool 10, one end of the sewage pump outlet pipe 7 is installed at the water outlet of the sewage pump 11, and the other end of the sewage pump outlet pipe 7 extends to the outside of the pump station cylinder 2. Specifically, the submersible sewage pump can be directly immersed in the accumulated water without additional water diversion, and has fast start response speed; the upwardly extending water outlet pipe utilizes the siphon principle to assist water discharge, improves the water discharge efficiency, and the outlet is higher than the ground to avoid rainwater backflow; the liquid level sensor for liquid level detection is linked to the control cabinet 14 to realize automatic discharge of the accumulated water without manual attendance. The water outlet pipe 7 is also provided with a check valve and a gate valve.

[0028] Further, the automatic dosing system is also included, and the automatic dosing and fertilizing system includes an automatic dosing and fertilizing tank and an inner cylinder pipeline module. The automatic dosing and fertilizing tank is arranged on the ground above the pump station cylinder 2, and is connected to the filtering mechanism through the inner cylinder pipeline module to realize automatic dosing and fertilizing by utilizing the pressure difference. The natural pressure difference between the inlet and outlet of the filtering mechanism is used as the dosing power without additional high-power equipment, thereby saving energy consumption; the drip irrigation and dosing / fertilizing integration is realized without separate operation, thereby saving manual working hours; the pressure difference driving improves the uniformity of dosing, and reduces the waste rate of the medicament / fertilizer; the corrosion-resistant pipeline design prolongs the service life of the dosing system, and reduces the pipeline replacement cost; and manual contact with the medicament is avoided, thereby improving the operation safety.

[0029] Further, the automatic dosing and fertilizing tank is a differential pressure dosing and fertilizing tank, which has a horizontal structure and adopts a lower inlet and an upper outlet.

[0030] The water in the liquid inlet pipe flows into the bottom of the tank from the lower inlet, and the water flow drives the flow of the medicament / fertilizer in the tank, avoiding the precipitation of the medicament; the mixed liquid flows out from the upper outlet at the top and enters the liquid outlet pipe; when adding the medicament / fertilizer, the sealing cover of the filling port at the top of the tank is opened, the sealing cover is tightened after the medicament / fertilizer is added, and the one-way valve of the exhaust port is opened to exhaust the air in the tank, ensuring smooth addition of the medicament. The horizontal structure increases the contact area of the tank with the ground, improves the stability compared with the vertical structure, saves the floor area, and is suitable for the limited space around the pump station; the lower inlet and upper outlet design makes the water flow from the bottom to the top, forming a stirring effect, avoiding the precipitation of the medicament / fertilizer leading to uneven concentration; the interface filter screen prevents undissolved particles from entering the pipeline and causing blockage, ensuring smooth pipeline.

[0031] Further, the in-cylinder pipeline module includes an interface end extending to the outside of the pump station cylinder 2 and a booster assembly, the interface end includes a liquid inlet and a liquid outlet, the inlet of the differential pressure dosing and fertilizing tank is connected with the liquid inlet of the interface end, the outlet of the differential pressure dosing and fertilizing tank is connected with the liquid outlet of the interface end, and the booster assembly is a micro booster pump. The access point on the filtering mechanism is provided with a pressure sensor.

[0032] The pressure sensor monitors the pressure of the access point of the filtering mechanism in real time. When the pressure is lower than the preset value, the PLC controller of the control cabinet 14 sends a signal to start the micro booster pump to increase the pressure of the liquid inlet of the interface end, so as to ensure that the pressure difference between the inlet and outlet of the differential pressure fertilizing tank is stable; when the pressure returns to above the preset value, the controller closes the micro booster pump. In this embodiment, the access point is shown in Figure 4 The water inlet point is at the outlet pipe of the centrifugal filter, and the water outlet point is at the horizontal pipe on the water inlet side of the stacked filter.

[0033] Further, the outlet of the differential pressure dosing and fertilizing tank is connected with the liquid outlet of the interface end through an ejector. The ejector is a Venturi ejector, the inlet end is connected with the outlet of the differential pressure fertilizing tank, and the inlet end can replace the orifice plate. The Venturi effect forms negative pressure at the throat, so that the medicament can be sucked and mixed without additional power, saving energy; the orifice plate accurately controls the flow of the medicament by changing the flow area, and cooperates with the pressure difference adjustment to realize accurate control of the dosing concentration.

[0034] A novel operation method of a buried integrated drip irrigation pump station, comprising the following steps: System startup preparation: check the state of the control cabinet 14 installed on the ground above the pump station cylinder 2, ensure that the electrical connection of the control cabinet 14 with the drip irrigation pump 3, the sewage pump 11, the ventilation assembly 13 and the automatic dosing system is normal, and at the same time confirm that the water collecting pool 10 composed of the in-cylinder concrete foundation 1 and the circumference and bottom wall of the pump station cylinder 2 has no initial water accumulation; Water inlet pressurization operation: open the butterfly valve 8 between the water inlet pipe 4 and the water inlet of the drip irrigation pump 3, start the drip irrigation pump 3 through the control cabinet 14, the drip irrigation pump 3 sucks the external water source through the water inlet pipe 4 and pressurizes, and then the pressurized fluid is delivered to the filtering mechanism through the valve group 6 between the water outlet of the drip irrigation pump 3 and the filtering mechanism; Multi-stage filtering treatment: the pressurized fluid flows through the centrifugal filter and the laminated filter arranged in series, first passes through the centrifugal filter to separate the large particle silt impurities in the fluid, and then passes through the laminated filter to filter the fine suspended impurities, so that the clean fluid meeting the drip irrigation water quality requirement is obtained; Automatic dosing / fertilizing: the horizontal differential pressure dosing and fertilizing tank installed on the ground above the pump station cylinder 2 introduces the fluid through the interface end liquid inlet of the in-cylinder pipeline module, starts the micro booster pump in the in-cylinder pipeline module to increase the water inlet pressure, and combines the monitoring signal of the pressure sensor at the pressurization access point of the filtering mechanism, so that the medicament or fertilizer in the differential pressure dosing and fertilizing tank is delivered to the outflow pipeline of the filtering mechanism through the interface end liquid outlet and the ejector under the action of water pressure difference, and mixed with the clean fluid to form drip irrigation liquid with medicament / fertilizer; Drip irrigation water supply: the drip irrigation liquid with medicament / fertilizer is delivered to the farmland drip irrigation system through the water outlet pipe 5 on the other side of the pump station cylinder 2 to complete the farmland drip irrigation operation; Sewage discharge and system monitoring: during operation, the seepage accumulated water in the pump station cylinder 2 is collected in the water collecting pool 10, when the accumulated water reaches the preset amount, the control cabinet 14 automatically starts the sewage pump 11, and the accumulated water is discharged to the outside of the pump station cylinder 2 through the sewage pump outlet pipe 7; at the same time, the control cabinet 14 monitors the output pressure of the drip irrigation pump 3, the running state of the filtering mechanism and the amount of automatic dosing system in real time, and dynamically adjusts the running parameters of each component according to the monitoring data; System shutdown: after the drip irrigation operation is completed, the drip irrigation pump 3, the micro booster pump, the butterfly valve 8 and the valve group 6 are closed in turn through the control cabinet 14, and finally the sewage pump 11 and the ventilation assembly are closed.

[0035] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. A new type of buried integrated drip irrigation pumping station, characterized in that, The utility model relates to a kind of drip irrigation pump station, including: Cylindrical pump station cylinder (2), the pump station cylinder (2) is transversely placed and its inside is provided with barrel concrete foundation (1), drip irrigation pump (3) is installed on the barrel concrete foundation (1), water inlet pipe (4) is connected to the water inlet side of drip irrigation pump (3), water outlet pipe (5) is provided on the other side of the pump station cylinder (2), filter mechanism is arranged between the water outlet side of drip irrigation pump (3) and the water outlet pipe (5), and the filter mechanism includes centrifugal filter and laminated filter; Several wellheads are opened in the pump station cylinder (2), and a ventilation assembly 13 with a ventilation pipe and a fan is further provided on the pump station cylinder (2), and a control cabinet (14) is installed on the ground above the pump station cylinder (2); A water collection pool (10) and a sewage discharge mechanism are arranged on one side of the pump station cylinder (2).

2. The new type of integrated drip irrigation pump station buried in the ground according to claim 1, characterized in that, A butterfly valve (8) is connected between the water inlet of the drip irrigation pump (3) and the water inlet pipe (4), and a valve group (6) is arranged between the water outlet of the drip irrigation pump (3) and the filter mechanism.

3. The new type of integrated drip irrigation pump station buried in the ground according to claim 1, characterized in that, The centrifugal filter and the laminated filter are connected in series, and the fluid delivered by the drip irrigation pump (3) passes through the centrifugal filter and the laminated filter in sequence.

4. The new type of integrated drip irrigation pump station buried in the ground according to claim 1, characterized in that, The water collection pool (10) is composed of the barrel concrete foundation (1) and the circumferential wall and bottom wall of the pump station cylinder (2).

5. The new type of integrated drip irrigation pump station buried in the ground according to claim 4, characterized in that, The sewage discharge mechanism includes a sewage pump (11) and a sewage pump outlet pipe (7), the sewage pump (11) is installed in the water collection pool (10), one end of the sewage pump outlet pipe (7) is installed at the water outlet of the sewage pump (11), and the other end of the sewage pump outlet pipe (7) extends to the outside of the pump station cylinder (2).

6. The new type of buried integrated drip irrigation pump station according to claim 1, characterized in that, An automatic dosing system is further included, the automatic dosing system includes an automatic dosing tank and an in-cylinder pipeline module, the automatic dosing tank is arranged on the ground above the pump station cylinder (2), and the automatic dosing tank is connected to the filter mechanism through the in-cylinder pipeline module to realize automatic dosing and fertilization by using pressure difference.

7. The new type of integrated subterranean drip irrigation pumping station according to claim 6, characterized in that, The automatic dosing tank is a pressure-difference dosing tank, the pressure-difference dosing tank has a horizontal structure and adopts a lower-inlet and upper-outlet interface.

8. The new type of integrated drip irrigation pump station buried in the ground according to claim 7, characterized by the fact that, The in-cylinder pipeline module includes an interface end extending to the outside of the pump station cylinder (2) and a pressure boosting assembly, the interface end includes a liquid inlet and a liquid outlet, the inlet of the pressure-difference dosing tank is connected to the liquid inlet of the interface end, the outlet of the pressure-difference dosing tank is connected to the liquid outlet of the interface end, the pressure boosting assembly is a micro pressure boosting pump, the micro pressure boosting pump is used to increase the water pressure of water inlet, and a pressure sensor is arranged at a pressure boosting access point on the filter mechanism.

9. The new type of integrated subterranean drip irrigation pumping station according to claim 8, characterized in that, The outlet of the pressure-difference dosing tank is connected to the liquid outlet of the interface end through an ejector.

10. A method for operating a new type of integrated buried drip irrigation pumping station, characterized in that, The utility model includes the following steps: System startup preparation: check the state of the control cabinet (14) installed on the ground above the pump station cylinder (2), ensure that the electrical connection of the control cabinet (14) with the drip irrigation pump (3), the sewage pump (11), the ventilation assembly (13) and the automatic dosing system is normal, and confirm that the water collection pool (10) composed of the barrel concrete foundation (1) and the circumferential wall and bottom wall of the pump station cylinder (2) has no initial water accumulation; Water inlet pressurization operation: open the butterfly valve (8) between the water inlet pipe (4) and the water inlet of the drip irrigation pump (3), start the drip irrigation pump (3) through the control cabinet (14), the drip irrigation pump (3) sucks in the external water source through the water inlet pipe (4) and pressurizes it, then the pressurized fluid is delivered to the filtering mechanism through the valve group (6) between the drip irrigation pump (3) outlet and the filtering mechanism; Multi-stage filtration treatment: the pressurized fluid flows through the centrifugal filter and the laminated filter in series, first through the centrifugal filter to separate the large particle silt impurities in the fluid, and then through the laminated filter to filter the fine suspended impurities, to obtain clean fluid meeting the drip irrigation water quality requirements; Automatic dosing / fertilizing: using the horizontal differential pressure dosing and fertilizing tank installed on the ground above the pump station cylinder (2), the fluid is introduced through the interface end liquid inlet of the in-cylinder pipeline module, the micro booster pump in the in-cylinder pipeline module is started to increase the water inlet pressure, combined with the monitoring signal of the pressure sensor at the filtering mechanism pressurization access point, the medicament or fertilizer in the differential pressure dosing and fertilizing tank is transported to the filtering mechanism outlet pipeline through the interface end liquid outlet and the ejector under the action of water pressure difference, and mixed with clean fluid to form drip irrigation liquid with medicament / fertilizer; Drip irrigation water supply: the drip irrigation liquid with medicament / fertilizer is transported to the farmland drip irrigation system through the water outlet pipe (5) on the other side of the pump station cylinder (2), and the farmland drip irrigation operation is completed; Sewage and system monitoring: during operation, the seepage accumulated water in the pump station cylinder (2) is collected in the water collecting pool (10), when the accumulated water reaches the preset amount, the control cabinet (14) automatically starts the sewage pump (11), and the accumulated water is discharged to the outside of the pump station cylinder (2) through the sewage pump outlet pipe (7); at the same time, the control cabinet (14) monitors the output pressure of the drip irrigation pump (3), the running state of the filtering mechanism and the amount of the automatic dosing system, and dynamically adjusts the running parameters of each component according to the monitoring data; System shutdown: after the drip irrigation operation is completed, the drip irrigation pump (3), the micro booster pump, the butterfly valve (8) and the valve group (6) are closed in turn through the control cabinet (14), and finally the sewage pump (11) and the ventilation assembly are closed.

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