Novel drainage device for field irrigation waterlogging pool in water conservancy project

Abstract

The invention belongs to the technical field of hydraulic engineering, and particularly relates to a novel drainage device for a hydraulic engineering field irrigation waterlogging pool, the novel drainage device comprises an irrigation waterlogging pool body and a drainage pipe, the drainage pipe is arranged at the bottom end of the irrigation waterlogging pool body, and the water inlet end of the drainage pipe extends to the center of the irrigation waterlogging pool body. The drainage device is effectively prevented from being blocked by floating impurities on the water surface through underwater suspension type water inflow, the drainage device can be prevented from being blocked by silt impurities at the bottom of an irrigation waterlogging pool through simultaneous water inflow of the five electric adjusting valves, the water inflow amount of the five electric adjusting valves further has the adjusting capacity, the drainage efficiency of the drainage device is improved, and the drainage effect is good. The water drainage device is simple in structure, does not need frequent manual maintenance, improves the convenience and reliability of water drainage operation, has a low-temperature anti-freezing function, prolongs the service life, improves the use effect, can normally play the basic function of irrigation water supply, and guarantees the irrigation requirements of agricultural production.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy projects, and in particular relates to a novel water discharge device for field irrigation ponds in water conservancy projects. Background Art

[0002] In agricultural production, irrigation is a key link to ensure the growth of crops and increase yields. As an important facility for water storage and supply, the design and function of the water discharge system of the field pond directly affect the efficient use of water resources and the water demand of crops. The reliability and ease of operation of the water discharge device determine whether the role of the pond in the irrigation process can be maximized. At present, the water discharge devices widely used in field ponds are mostly controlled by gate valves. For example, the patent with authorization announcement number CN217896385U discloses a field irrigation water outlet device.

[0003] Most existing gate valve systems consist of a water pipe and a gate valve. The water pipe is installed at the bottom of the irrigation pond that stores irrigation water, and the water outlet of the water pipe passes through the outer wall of the bottom end of the irrigation pond and is connected to the gate valve. However, from the perspective of durability, the gate valve system used for water release is prone to freezing and expansion in the low temperature environment in winter, causing irreversible frost heave damage to the gate valve and water pipe structure, affecting the service life and effectiveness of the field irrigation gate valve and water pipe, as well as the reliability of field irrigation water release operations. Moreover, since the water inlet end of the water pipe is placed at the bottom of the irrigation pond, it is affected by the water flow. The mud and impurities at the bottom of the irrigation pond can easily enter the water pipe, and even accumulate inside the water pipe and the gate valve, causing water blockage. This not only seriously affects the water discharge efficiency, but also requires frequent maintenance by staff, affecting the convenience and reliability of the existing field irrigation and water discharge equipment, and making it impossible to perform the basic function of irrigation and water supply normally, which brings great obstacles to agricultural production.

[0004] Therefore, a new water release device for field irrigation ponds in water conservancy projects is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a new type of water discharge device for field irrigation ponds in water conservancy projects in order to solve the above problems.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a novel water discharge device for a field irrigation pond in a water conservancy project, comprising an irrigation pond body and a discharge pipe, wherein the discharge pipe is disposed at the bottom end of the irrigation pond body, the water inlet end of the discharge pipe extending to the center of the irrigation pond body, and the water outlet end of the discharge pipe passing through the bottom outer wall of the irrigation pond body; a deep groove is formed at the top end of the irrigation pond body, and a control mechanism is fixedly connected to the groove wall of the deep groove; The water inlet end of the drain pipe is fixedly connected to a submersible electromagnetic flowmeter, the water inlet end of the submersible electromagnetic flowmeter is fixedly connected to an annular pipe, and the upper surface of the annular pipe is fixedly connected to five water inlet hoses; The top end of the water inlet hose is fixedly connected to a water inlet mechanism; An auxiliary mechanism is fixedly connected to the outer wall of the water inlet mechanism.

[0007] In the above-mentioned new water discharge device for field irrigation ponds in water conservancy projects, the control mechanism includes a heat dissipation protective cylinder fixedly embedded in the top of the irrigation pond body, the top of the heat dissipation protective cylinder is provided with a connecting thread, the top inner wall of the heat dissipation protective cylinder is threadedly connected to a threaded connecting ring, the top of the threaded connecting ring is fixedly connected to a heat insulation protective cover plate, the inner wall of the heat dissipation protective cylinder is fixedly connected to a PLC controller and a bracket, and the top of the bracket is fixedly embedded with a control panel.

[0008] In the above-mentioned novel water discharge device for field irrigation ponds in water conservancy projects, a sealing rubber ring is movably sleeved on the outer wall of the threaded connection ring, and a U-shaped handle is fixedly connected to the upper surface of the heat-insulating protective cover.

[0009] In the above-mentioned new water discharge device for field irrigation ponds in a water conservancy project, the water inlet mechanism includes a water flow sensor fixedly connected to the top of a water inlet hose, the top water inlet hole of the water flow sensor is fixedly connected to a bent pipe, the inner wall of the water inlet end of the bent pipe is fixedly connected to an electric regulating valve, the top outer wall of the bent pipe is fixedly connected to a support cover, the upper surface of the support cover is fixedly connected to a corrugated rubber cylinder, the top inner wall of the corrugated rubber cylinder is fixedly connected to a support plate, a circular hole is opened at the top of the support plate, and the hole wall of the circular hole is fixedly connected to a water pressure sensor, the inner wall of the support cover is fixedly connected to a micro air pump, the air inlet end of the micro air pump is fixedly connected to an air intake three-way reversing solenoid valve, the bottom air inlet end of the air intake three-way reversing solenoid valve passes through the lower surface of the support cover and is fixedly connected to an air intake hose, the air outlet end of the micro air pump is fixedly connected to an air outlet three-way reversing solenoid valve, and one side air outlet end of the air outlet three-way reversing solenoid valve is fixedly connected to an exhaust assembly.

[0010] In the above-mentioned new water discharge device for field irrigation ponds in water conservancy projects, the exhaust component includes a branch pipe fixedly connected to the outlet end on one side of the outlet three-way reversing solenoid valve, the outlet end of the branch pipe passes through the side wall of the fixed cover, and the outlet end of the branch pipe is fixedly connected to an exhaust one-way valve.

[0011] In the above-mentioned new water discharge device for field irrigation ponds in water conservancy projects, the auxiliary mechanism includes a guide ring fixedly connected to the lower surface of the support cover, the inner wall of the guide ring is movably connected with an air guide deep cylinder, the bottom end of the air guide deep cylinder is inserted into the bottom end of the irrigation pond body, the air inlet end of the air inlet hose is fixedly connected to the outer wall of the bottom end of the air guide deep cylinder, and the top air inlet end of the air guide deep cylinder is fixedly connected to a waterproof elbow pipe.

[0012] In the above-mentioned novel water discharge device for field irrigation ponds in water conservancy projects, a warning light for reminding that the electric regulating valve is blocked is fixedly connected to the inner wall of the waterproof elbow pipe.

[0013] In the above-mentioned new water discharge device for field irrigation ponds in water conservancy projects, a filter screen cover is provided on the outside of the water inlet end of the electric regulating valve, the outer wall of the filter screen cover is fixedly connected to the lower surface of the support cover and the outer surface of the bent pipe, and the mesh diameter of the filter screen cover is 3-6 mm.

[0014] Compared with existing technologies, the advantages of a new water release device for field irrigation ponds in water conservancy projects are: 1. Through the set water inlet mechanism, auxiliary mechanism and control mechanism, when the field irrigation pond needs to release water to irrigate the farmland, the water inlet mechanism is first controlled by the control mechanism to start, and the water inlet mechanism cooperates with the auxiliary mechanism to lift the position of the electric regulating valve upward, so that the electric regulating valve rises to the water surface below the top of the irrigation water in the irrigation pond body and is suspended. Then the five electric regulating valves are controlled to open the water inlet at the same time. After that, the water enters the annular pipe through the water inlet hose and finally enters the discharge pipe through the submersible electromagnetic flowmeter for discharge, thereby realizing water release for irrigation of farmland. The mechanism effectively avoids clogging of the water discharge device by floating impurities on the water surface through the submersible water inlet, reduces the water inlet flow rate through the five electric regulating valves at the same time, and avoids clogging of the water discharge device by sediment impurities at the bottom of the irrigation pond. It not only effectively improves the efficiency of water discharge of the water discharge device, but also does not require frequent manual maintenance, reduces the labor intensity of the staff, and improves the convenience and reliability of water discharge operation of the water discharge device, can normally play the basic function of irrigation water supply, and ensure the irrigation needs of agricultural production.

[0015] 2. Through the set water flow sensor, warning light and control mechanism, if the water inlet end of an electric regulating valve is blocked, the water inlet volume of the electric regulating valve will be greatly reduced. At this time, the small water flow will reduce the water flow detected by the water flow sensor, and output the corresponding pulse signal to feed back to the PLC controller. The PLC controller will promptly control the opening of the remaining four electric regulating valves to increase, thereby ensuring that the water flow entering the annular pipe is sufficient and will not affect the water discharge efficiency. Then the PLC controller will also control the warning light corresponding to the blocked electric regulating valve to light up the alarm, reminding the staff to maintain the blocked electric regulating valve in time. This mechanism can effectively improve the reliability of the water discharge operation of the water discharge device, avoid the situation where a certain electric regulating valve is blocked and affects the overall water discharge efficiency, and ensure the irrigation needs of agricultural production.

[0016] 3. Through the set water inlet mechanism and control mechanism, when there is no agricultural irrigation demand in winter, the staff will send an antifreeze signal to the PLC controller through the operation panel. The PLC controller will promptly control the closure of the electric regulating valves of the five water inlet mechanisms according to the antifreeze signal, and after the electric regulating valves are sunk to the bottom of the irrigation pond body, in the low temperature environment in winter, the temperature of the bottom of the irrigation pond body is higher than 0 degrees Celsius and will not freeze. Sinking the water inlet mechanism to the bottom of the irrigation pond body can effectively avoid the water inlet mechanism being damaged by low temperature frost heave, and can ensure the continuous and reliable use of the water discharge device. This mechanism enables the water discharge device to have the function of low temperature antifreeze, which not only improves the protection ability of the water discharge device, but also improves the service life and effect of the water discharge device, and improves the reliability of field irrigation and water discharge operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a new type of water discharge device for field irrigation ponds in water conservancy projects provided by the present invention; Figure 2 This is a schematic structural diagram of a cross-section of a control mechanism in a new type of water discharge device for field irrigation ponds in a water conservancy project provided by the present invention; Figure 3 This is a structural schematic diagram of part A of a new type of water discharge device for field irrigation ponds in a water conservancy project provided by the present invention; Figure 4 This is a structural schematic diagram of a submersible electromagnetic flowmeter in a new water discharge device for field irrigation ponds in a water conservancy project provided by the present invention; Figure 5 This is a structural schematic diagram of a water inlet mechanism in a new water discharge device for field irrigation ponds in a water conservancy project provided by the present invention; Figure 6 The present invention provides a schematic structural diagram of an auxiliary mechanism in a new type of water discharge device for field irrigation ponds in a water conservancy project.

[0018] In the figure: 1 irrigation pond body, 2 discharge pipe, 3 control mechanism, 31 heat dissipation protection cylinder, 32 threaded connection ring, 33 heat insulation protection cover, 34 PLC controller, 35 bracket, 36 control panel, 4 submersible electromagnetic flowmeter, 5 annular pipe, 6 water inlet hose, 7 water inlet mechanism, 71 water flow sensor, 72 elbow, 73 electric regulating valve, 74 support cover, 75 corrugated rubber cylinder, 76 support plate, 77 water pressure sensor, 78 micro air pump, 79 air inlet three-way reversing solenoid valve, 710 air inlet hose, 711 air outlet three-way reversing solenoid valve, 8 auxiliary mechanism, 81 guide ring, 82 air guide deep cylinder, 83 waterproof elbow pipe, 9 exhaust assembly, 91 branch pipe, 92 exhaust one-way valve, 10 sealing rubber ring, 11 U-shaped handle, 12 warning light, 13 filter cover. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0020] like Figures 1-6 As shown, a new type of water discharge device for a field irrigation pond in a water conservancy project includes an irrigation pond body 1 and a discharge pipe 2. The discharge pipe 2 is arranged at the bottom end of the irrigation pond body 1, the water inlet end of the discharge pipe 2 extends to the center of the irrigation pond body 1, and the water outlet end of the discharge pipe 2 passes through the outer wall of the bottom end of the irrigation pond body 1. A deep groove is opened at the top of the irrigation pond body 1, and a control mechanism 3 is fixedly connected to the groove wall of the deep groove. The control mechanism 3 includes a heat dissipation protective cylinder 31 fixedly embedded in the top of the irrigation pond body 1. The top of the heat dissipation protective cylinder 31 is opened with a connecting thread. The heat dissipation protective cylinder 31 The inner wall of the top is threadedly connected to a threaded connecting ring 32, the top of the threaded connecting ring 32 is fixedly connected to a heat-insulating protective cover 33, the outer wall of the threaded connecting ring 32 is movably sleeved with a sealing rubber ring 10, the upper surface of the heat-insulating protective cover 33 is fixedly connected to a U-shaped handle 11, the inner wall of the heat dissipation protective cylinder 31 is fixedly connected to a PLC controller 34 and a bracket 35, and the top of the bracket 35 is fixedly embedded with a control panel 36. This mechanism can facilitate the control of the device, and there is no need to build a control room on the irrigation pond body 1, which saves time and effort and improves the convenience of installation and use of the water discharge device.

[0021] The water inlet end of the drain pipe 2 is fixedly connected to a submersible electromagnetic flowmeter 4, and the water inlet end of the submersible electromagnetic flowmeter 4 is fixedly connected to an annular pipe 5. Five water inlet hoses 6 are fixedly connected to the upper surface of the annular pipe 5. The top of the water inlet hose 6 is fixedly connected to a water inlet mechanism 7. The water inlet mechanism 7 includes a water flow sensor 71 fixedly connected to the top of the water inlet hose 6. The top water inlet hole of the water flow sensor 71 is fixedly connected to a bend pipe 72. The inner wall of the water inlet end of the bend pipe 72 is fixedly connected to an electric regulating valve 73. The outer wall of the top of the bend pipe 72 is fixedly connected to a support cover 74. A filter screen cover 13 is provided on the outside of the water inlet end of the electric regulating valve 73. The outer wall of the filter screen cover 13 is fixedly connected to the lower surface of the support cover 74 and the outer surface of the bend pipe 72. The mesh diameter of the filter screen cover 13 is 5 mm. The 5 mm large-aperture filter screen cover 13 has the ability to quickly filter water. The upper surface of the support cover 74 is fixedly connected with a corrugated rubber tube 75, and the top inner wall of the corrugated rubber tube 75 is fixedly connected with a support plate 76. A circular hole is opened at the top of the support plate 76, and the hole wall of the circular hole is fixedly connected with a water pressure sensor 77. The inner wall of the support cover 74 is fixedly connected with a micro air pump 78, and the air inlet end of the micro air pump 78 is fixedly connected with an air intake three-way reversing solenoid valve 79. The bottom air inlet end of the air intake three-way reversing solenoid valve 79 passes through the lower surface of the support cover 74 and is fixedly connected with an air intake hose 710. The air outlet end of the micro air pump 78 is fixedly connected with an air outlet three-way reversing solenoid valve 711.

[0022] One side outlet end of the air outlet three-way reversing solenoid valve 711 is fixedly connected to an exhaust component 9, and the exhaust component 9 includes a branch pipe 91 fixedly connected to one side outlet end of the air outlet three-way reversing solenoid valve 711, and the air outlet end of the branch pipe 91 passes through the side wall of the fixed cover, and the air outlet end of the branch pipe 91 is fixedly connected to an exhaust one-way valve 92. This mechanism can facilitate the discharge of air in the corrugated rubber tube 75.

[0023] The outer wall of the water inlet mechanism 7 is fixedly connected to an auxiliary mechanism 8, and the auxiliary mechanism 8 includes a guide ring 81 fixedly connected to the lower surface of the support cover 74, and the inner wall of the guide ring 81 is movably connected to an air guide deep cylinder 82, and the bottom end of the air guide deep cylinder 82 is inserted into the bottom end of the irrigation pond body 1, and the air inlet end of the air inlet hose 710 is fixedly connected to the outer wall of the bottom end of the air guide deep cylinder 82, and the top air inlet end of the air guide deep cylinder 82 is fixedly connected to a waterproof elbow pipe 83, and the inner wall of the waterproof elbow pipe 83 is fixedly connected to a warning light 12 for reminding that the electric regulating valve 73 is blocked. When the warning light 12 is lit, it is convenient for the staff to promptly maintain the blocked electric regulating valve 73. This mechanism can limit the range of movement of the corrugated rubber cylinder 75 in the water and can reliably move up and down along the air guide deep cylinder 82.

[0024] The submersible electromagnetic flowmeter 4, the control panel 36, the water flow sensor 71 and the water pressure sensor 77 are all electrically connected to the input end of the PLC controller 34 through wires, and the electric regulating valve 73, the micro air pump 78, the air inlet three-way reversing solenoid valve 79, the air outlet three-way reversing solenoid valve 711 and the indicator light 12 are all electrically connected to the output end of the PLC controller 34 through wires. The above-mentioned power-on equipment and electrical connections are all existing technologies and will not be repeated here.

[0025] The operating principle of the present invention is described as follows: when it is necessary to release water from the irrigation pond for farmland irrigation, the staff first rotates the heat-insulating protective cover 33 through the U-shaped handle 11, and separates the threaded connection ring 32 from the heat-dissipating protective cylinder 31, and then sends a water release signal to the PLC controller 34 through the control panel 36. After receiving the water release signal, the PLC controller 34 immediately controls the micro-air pump 78 and the air intake three-way reversing solenoid valve 79 in the five water inlet mechanisms 7 to energize and work. After the air intake three-way reversing solenoid valve 79 is energized, the air intake hose 710 can be connected to the air intake end of the micro-air pump 78, and then the micro-air pump 78 passes through the air intake hose 710 and the guide The air depth cylinder 82 and the waterproof elbow pipe 83 draw in outside air. The outside air then enters the cavity formed by the support cover 74, the corrugated rubber cylinder 75, and the support plate 76 through the unpowered air outlet three-way reversing solenoid valve 711. At the same time, the corrugated rubber cylinder 75 expands, increasing the buoyancy of the corrugated rubber cylinder 75. As the buoyancy increases, the corrugated rubber cylinder 75 and the support cover 74 drive the elbow 72 to rise in the irrigation water stored in the irrigation pond body 1. As the support plate 76 rises, the water pressure of the irrigation water in the irrigation pond body 1 gradually decreases on the water pressure sensor 77. The water pressure sensor 77 transmits the detected water pressure value to the PLC controller 34 as an electrical signal. When the water pressure value detected by the water pressure sensor 77 reaches the low water pressure threshold preset by the PLC controller 34, the PLC controller 34 promptly controls the micro air pump 78 and the air intake three-way reversing solenoid valve 79 to cut off the power. At the same time, the PLC controller 34 also controls the five electric regulating valves 73 to start. At this time, the buoyancy generated by the corrugated rubber tube 75 and the support cover 74 can stably maintain the elbow 72 and the electric regulating valve 73 10-15 cm below the water surface in the irrigation pond body 1, thereby ensuring that the electric regulating valve 73 is always on the lower side of the water surface of the irrigation pond body 1. This not only ensures that the electric regulating valve 73 can reliably inlet water, but also prevents floating impurities on the water surface of the irrigation pond body 1 from approaching the water inlet end of the electric regulating valve 73, and tries to avoid blockage. Moreover, when the five electric regulating valves 73 are opened at the same time, the water inlet flow rate at the water inlet end of each electric regulating valve 73 is reduced. The lower the water inlet flow rate, the more the water flow at the water inlet end of the electric regulating valve 73 is absorbed. The smaller the force, the larger the amount of silt and sand impurities in the irrigation pond body 1 are avoided from being directed to the water inlet end of the electric regulating valve 73, and the situation in which the water inlet end of the electric regulating valve 73 is blocked by a large amount of silt and sand impurities is avoided as much as possible, so that the water enters the annular pipe 5 through the water flow sensor 71 and the water inlet hose 6, and finally the water flows into the discharge pipe 2 through the submersible electromagnetic flowmeter 4, completing the field irrigation pond water discharge operation, and the submersible electromagnetic flowmeter 4 calculates the discharge flow rate. The mechanism effectively avoids the clogging of the discharge device by impurities floating on the water surface through the submersible electromagnetic flowmeter 4. The water is simultaneously discharged through the five electric regulating valves 73 to reduce the water inlet flow rate and avoid the clogging of the discharge device by silt and sand impurities at the bottom of the irrigation pond. This not only effectively improves the efficiency of the discharge device, but also does not require frequent manual maintenance, reduces the labor intensity of the staff, and improves the convenience and reliability of the discharge operation of the discharge device, can normally play the basic function of irrigation water supply, and ensure the irrigation needs of agricultural production; If the water inlet of a certain electric regulating valve 73 is blocked, the water inlet volume of the electric regulating valve 73 is greatly reduced, so that the water flow through the submersible electromagnetic flowmeter 4 is reduced. At this time, the small water flow reduces the speed of the rotor assembly in the water flow sensor 71. Then, the Hall element in the water flow sensor 71 outputs a corresponding pulse signal and feeds it back to the PLC controller 34. The PLC controller 34 promptly controls the opening of the remaining four electric regulating valves 73 to increase. The increase in the opening of the remaining four electric regulating valves 73 is inversely proportional to the water flow into the blocked electric regulating valve 73, thereby ensuring that the water flow entering the annular pipe 5 is sufficient. At the same time, the water flow through the submersible electromagnetic flowmeter 4 meets the water discharge demand and does not affect the water discharge efficiency. Then, the PLC controller 34 also controls the warning light 12 corresponding to the blocked electric regulating valve 73 to light up as an alarm, reminding the staff to promptly maintain the blocked electric regulating valve 73. This mechanism can effectively improve the reliability of the water discharge operation of the water discharge device, avoid the situation where the blockage of a certain electric regulating valve 73 affects the overall water discharge efficiency, and ensure the irrigation needs of agricultural production. When there is no need for agricultural irrigation in winter, the staff sends an antifreeze signal to the PLC controller 34 through the control panel 36. The PLC controller 34 controls the five electric regulating valves 73 to close in time according to the antifreeze signal, so that no water remains in the drain pipe 2 and the annular pipe 5. In addition, the PLC controller 34 controls the micro air pump 78 and the air outlet three-way reversing solenoid valve 711 to be energized. After the air outlet three-way reversing solenoid valve 711 is energized, the auxiliary mechanism 8 can be connected to the air outlet end of the micro air pump 78. Then the micro air pump 78 is connected to the air outlet end of the micro air pump 78 through the non-energized air inlet three-way reversing solenoid valve 711. The air in the support cover 74 and the corrugated rubber tube 75 is sucked toward the electromagnetic valve 79, causing the corrugated rubber tube 75 to shrink and reduce buoyancy, and the micro air pump 78 introduces the sucked air into the branch pipe 91 through the outlet three-way reversing electromagnetic valve 711, and finally discharges it through the exhaust one-way valve 92. As the support cover 74 descends, it will slide along the air guide deep tube 82 through the guide ring 81. The limit of the guide ring 81 and the air guide deep tube 82 can prevent the support cover 74 from swimming in a large range in the irrigation water. At the same time, the water pressure on the water pressure sensor 77 gradually increases. When the water inlet mechanism 7 sinks After reaching the bottom of the irrigation pond body 1, the water pressure value detected by the water pressure sensor 77 reaches the high water pressure threshold preset by the PLC controller 34. Then, the PLC controller 34 controls the micro air pump 78 to stop working, and at the same time controls the air outlet three-way reversing solenoid valve 711 to cut off the power. In the low temperature environment in winter, sinking the water inlet mechanism 7 to the bottom of the irrigation pond body 1 can effectively avoid the water inlet mechanism 7 being damaged by low temperature frost heave. This is because the closer the water temperature is to the bottom of the irrigation pond body 1, the higher the water temperature is. Since the density of water is the largest at 4°C, it will sink to The bottom of the irrigation pond body 1 makes the water temperature at the bottom of the irrigation pond body 1 closer to 4°C, while the surface water of the irrigation pond body 1 is easily affected by the low-temperature air and the temperature drops. The water inlet mechanism 7 at the bottom of the irrigation pond body 1 can contact the water with a higher temperature, which can reduce heat loss and thus prevent damage by freezing, and can ensure the continuous and reliable use of the water discharge device. This mechanism enables the water discharge device to have a low-temperature antifreeze function, which not only improves the protection ability of the water discharge device, but also improves the service life and effect of the water discharge device, and improves the reliability of field irrigation and water discharge operations.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel water discharge device for a field irrigation pond in a water conservancy project, comprising an irrigation pond body (1) and a water discharge pipe (2), characterized in that: The discharge pipe (2) is arranged at the bottom end of the irrigation pond body (1), the water inlet end of the discharge pipe (2) extends to the center of the irrigation pond body (1), and the water outlet end of the discharge pipe (2) passes through the outer wall of the bottom end of the irrigation pond body (1). A deep groove is formed at the top end of the irrigation pond body (1), and a control mechanism (3) is fixedly connected to the groove wall of the deep groove; The water inlet end of the drain pipe (2) is fixedly connected to a submersible electromagnetic flowmeter (4), the water inlet end of the submersible electromagnetic flowmeter (4) is fixedly connected to an annular pipe (5), and the upper surface of the annular pipe (5) is fixedly connected to five water inlet hoses (6); The top end of the water inlet hose (6) is fixedly connected to a water inlet mechanism (7); An auxiliary mechanism (8) is fixedly connected to the outer wall of the water inlet mechanism (7).

2. A novel water discharge device for field irrigation ponds in water conservancy projects according to claim 1, characterized in that: The control mechanism (3) comprises a heat dissipation protection cylinder (31) fixedly embedded in the top of the irrigation pond body (1); a connecting thread is provided at the top of the heat dissipation protection cylinder (31); a threaded connection ring (32) is threadedly connected to the inner wall of the top of the heat dissipation protection cylinder (31); a heat insulation protection cover plate (33) is fixedly connected to the top of the threaded connection ring (32); a PLC controller (34) and a bracket (35) are fixedly connected to the inner wall of the heat dissipation protection cylinder (31); and a control panel (36) is fixedly embedded at the top of the bracket (35).

3. A novel water discharge device for field irrigation ponds in water conservancy projects according to claim 2, characterized in that: A sealing rubber ring (10) is movably sleeved on the outer wall of the threaded connection ring (32), and a U-shaped handle (11) is fixedly connected to the upper surface of the heat-insulating protective cover plate (33).

4. The novel water discharge device for field irrigation ponds in water conservancy projects according to claim 1 is characterized in that: The water inlet mechanism (7) comprises a water flow sensor (71) fixedly connected to the top of the water inlet hose (6); the water inlet hole at the top of the water flow sensor (71) is fixedly connected to a bend pipe (72); the inner wall of the water inlet end of the bend pipe (72) is fixedly connected to an electric regulating valve (73); the outer wall of the top of the bend pipe (72) is fixedly connected to a support cover (74); the upper surface of the support cover (74) is fixedly connected to a corrugated rubber tube (75); the inner wall of the top of the corrugated rubber tube (75) is fixedly connected to a support plate (76); the top of the support plate (76) is provided with a circular hole, and the circular hole is fixedly connected to the inner wall of the top of the support plate (76); The hole wall of the support cover (74) is fixedly connected to a water pressure sensor (77), the inner wall of the support cover (74) is fixedly connected to a micro air pump (78), the air inlet end of the micro air pump (78) is fixedly connected to an air inlet three-way reversing solenoid valve (79), the bottom air inlet end of the air inlet three-way reversing solenoid valve (79) passes through the lower surface of the support cover (74) and is fixedly connected to an air inlet hose (710), the air outlet end of the micro air pump (78) is fixedly connected to an air outlet three-way reversing solenoid valve (711), and one side air outlet end of the air outlet three-way reversing solenoid valve (711) is fixedly connected to an exhaust assembly (9).

5. A novel water discharge device for field irrigation ponds in water conservancy projects according to claim 4, characterized in that: The exhaust assembly (9) comprises a branch pipe (91) fixedly connected to the outlet end of one side of the outlet three-way reversing solenoid valve (711), the outlet end of the branch pipe (91) passing through the side wall of the fixed cover, and the outlet end of the branch pipe (91) fixedly connected to the exhaust one-way valve (92).

6. A novel water discharge device for field irrigation ponds in water conservancy projects according to claim 5, characterized in that: The auxiliary mechanism (8) includes a guide ring (81) fixedly connected to the lower surface of the support cover (74); the inner wall of the guide ring (81) is movably connected to an air guide deep cylinder (82); the bottom end of the air guide deep cylinder (82) is inserted into the bottom end of the irrigation pond body (1); the air inlet end of the air inlet hose (710) is fixedly connected to the outer wall of the bottom end of the air guide deep cylinder (82); and the top air inlet end of the air guide deep cylinder (82) is fixedly connected to a waterproof elbow pipe (83).

7. A novel water discharge device for field irrigation ponds in water conservancy projects according to claim 6, characterized in that: A warning light (12) for reminding the electric regulating valve (73) that it is blocked is fixedly connected to the inner wall of the waterproof elbow pipe (83).

8. The novel water discharge device for field irrigation ponds in water conservancy projects according to claim 4 is characterized in that: A filter screen (13) is provided on the outside of the water inlet end of the electric regulating valve (73), and the outer wall of the filter screen (13) is fixedly connected to the lower surface of the support cover (74) and the outer surface of the elbow (72). The mesh diameter of the filter screen (13) is 3-6 mm.

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