Low-consumption intelligent centrifugal filtration system

Abstract

The utility model discloses a low-consumption intelligent centrifugal filtration system, which belongs to the technical field of water treatment and comprises a centrifugal barrel, a knife gate valve, a conical sand storage tank, a high-frequency vibration cylinder, a pinch valve and a support, the centrifugal barrel is communicated with a clear water pipeline through a top overflow pipe, a side wall water inlet is connected into a sand-containing water source, and the bottom is connected with the conical sand storage tank through the knife gate valve. The conical sand storage tank is of an inverted cone frustum structure, spiral flow deflectors are welded to the inner wall, and a pressure sensor is embedded into the bottom to achieve sand deposition monitoring. Sand-water separation is accelerated through a high-frequency vibration cylinder, a pipe clamping valve at the bottom of the high-frequency vibration cylinder is controlled by a PLC to achieve accurate sand discharging, and an inverted-V-shaped flow dividing structure at the tail end of a support dispersedly discharges sand at the angle of 50-70 degrees. Centrifugal filtering and high-frequency vibration technologies are integrated, opening and closing and vibration parameters of the knife gate valve are intelligently regulated and controlled through the PLC, efficient sand-water separation and automatic circulation operation are achieved, and the device is particularly suitable for agricultural irrigation scenes of high-sand-content water sources and has the remarkable advantages of being low in energy consumption, low in failure rate and high in water resource utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of agricultural irrigation, specifically a low-consumption intelligent centrifugal filtration system. Background Technology

[0002] In agricultural irrigation, traditional sand and gravel filters generally rely on manual cleaning and require large amounts of water for rinsing, resulting in high water consumption, low efficiency, and high energy consumption. Especially in rivers and well water irrigation with high sand content, sand and gravel easily clog pipes, leading to uneven irrigation, frequent equipment downtime for maintenance, and severely restricting agricultural production efficiency. While existing centrifugal filters can achieve preliminary solid-liquid separation, their rinsing consumes a large amount of water (15%–20% of the filtration flow rate per rinse), and sand removal requires manual valve operation, which is labor-intensive and inefficient (3–5 minutes of manual operation per sand discharge), failing to meet the needs of water-saving agricultural development.

[0003] Therefore, there is an urgent need for a centrifugal filtration system that is automated, energy-efficient, and highly effective to solve the above problems. For example, a self-draining centrifugal filter, as described in application number 201510296255.1, includes a conical tank 3, an inlet pipe 1, an outlet pipe 2, a sand collection tank 4, a guide cone 5, and a sewage discharge control system. The sand collection tank 4 is a vertical conical sand collection tank. The sewage discharge control system consists of a sediment pressure sensor 8 located at the outlet end of the sand collection tank 4, a tank pressure sensor 7 located at the outlet end of the conical tank 3, a solenoid valve 9, and a controller 6. The sediment pressure sensor 8 and the tank pressure sensor 7 are respectively connected to the controller 6. The sewage discharge control system monitors the sediment pressure sensor 8 in real time or automatically calculates the sand discharge time using a sand discharge algorithm, and controls the opening and closing of the solenoid valve 9 accordingly. This overcomes the prominent problems of traditional centrifugal filters, such as reliance on manual opening and closing and low automation, and can significantly improve filtration efficiency and reduce operating costs. This device has good application prospects.

[0004] However, the aforementioned patent applications still suffer from problems such as low sand removal efficiency, easy clogging, and consequently, reduced filtration efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a low-consumption intelligent centrifugal filtration system to overcome the above-mentioned technical problems, achieve efficient filtration and sand removal of sand-containing water, reduce labor costs and water consumption, and improve the stability and reliability of agricultural irrigation systems.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A low-power intelligent centrifugal filtration system is provided, comprising:

[0008] The centrifuge bucket has an overflow pipe at the top center that connects to an external clean water pipe, and a water inlet on the side wall that connects to an external water inlet pipe. The lower end of the overflow pipe is tangent to the lower end of the water inlet pipe. The bottom of the centrifuge bucket has a circular connecting flange and a sealing ring.

[0009] A knife gate valve, which is bolted to the bottom of the centrifuge tank;

[0010] A conical sand storage tank, wherein the conical sand storage tank is in the shape of an inverted truncated cone, the inner wall of the tank is provided with spiral guide vanes, a pressure sensor is embedded at the bottom of the tank, and the conical sand storage tank is connected to the centrifuge tank flange through a knife gate valve;

[0011] A high-frequency vibrating cylinder, which integrates an ultrasonic generator, a vibrating rod and a vibration transmission rod inside, and is equipped with a protective shell on the outside, with a top clamp connecting to a conical sand storage tank;

[0012] A clamp valve is fitted onto the bottom of a high-frequency vibrating cylinder and fixed by a clamp. A sand discharge port is provided at the bottom of the valve body, and the valve body power line is connected to the PLC control system.

[0013] The bracket includes a support frame and a diversion structure. The support frame has adjustable feet at the bottom and a pipe clamp valve is fixed at the top of the frame by a U-shaped pipe clamp. The diversion structure is inverted V-shaped and is located below the sand discharge port. The diversion structure is fixed to the bottom of the support frame by bolts.

[0014] Furthermore, the spiral guide vane is made of 304 stainless steel plate with a thickness of 8mm, a pitch of 8-12cm, and a spiral angle of 30°-45°, and is fixed to the inner wall of the conical sand storage tank by welding.

[0015] Furthermore, the high-frequency vibrating cylinder has a vibration frequency of 30-80Hz and an amplitude of 1-3mm, and is bolted to the annular mounting groove on the outer wall of the conical sand storage tank via an annular bracket.

[0016] Furthermore, the diversion structure is a stainless steel panel or a mesh steel plate, and the diversion angle is 50°-70°.

[0017] Furthermore, the conical sand storage tank body adopts a 45° cone angle, and the wall thickness of the conical sand storage tank body is 4mm.

[0018] Furthermore, the sealing ring is made of fluororubber.

[0019] This application discloses a low-energy intelligent centrifugal filtration system that can efficiently filter sand-containing water sources, achieve fully automatic sand removal and circulation operation, and has a low failure rate. At the same time, through precise PLC control, it significantly reduces energy consumption and water waste, and is suitable for irrigation scenarios such as rivers and well water with high sand content. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0021] Figure 2 This is a schematic diagram of the conical sand storage tank structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the clamp valve structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the support structure of this utility model.

[0024] In the diagram: 1. Centrifuge tank; 2. Knife gate valve; 3. Conical sand storage tank; 31. Spiral guide vane; 32. Pressure sensor; 4. High-frequency vibrating cylinder; 5. Pinch valve; 51. Sand discharge port; 52. Power cord; 6. Bracket; 61. Support frame; 62. Diversion structure; 63. U-shaped pipe clamp. Detailed Implementation

[0025] Example 1:

[0026] like Figure 1-3 As shown, the present invention provides a low-consumption intelligent centrifugal filtration system, comprising:

[0027] Centrifuge tank 1, with an overflow pipe at the top center connected to an external clean water pipeline, and a water inlet on the side wall, the water inlet being 500mm away from the top flange of the centrifuge tank and connected to an external water inlet pipeline, the lower end of the overflow pipe being tangent to the lower end of the water inlet pipeline, and a circular connecting flange and a sealing ring at the bottom of the centrifuge tank 1.

[0028] Knife gate valve 2, which is bolted to the bottom of the centrifuge tank 1;

[0029] The conical sand storage tank 3 is an inverted truncated cone shape. The inner wall of the tank is provided with spiral guide vanes 31, and a pressure sensor 32 is embedded at the bottom of the tank. The conical sand storage tank 3 is connected to the centrifuge tank 1 flange through a knife gate valve 2.

[0030] High-frequency vibrating cylinder 4, which integrates an ultrasonic generator, a vibrating rod and a vibration transmission rod inside, and is equipped with a protective shell on the outside, with a top clamp connecting to a conical sand storage tank 3;

[0031] The clamp valve 5 is sleeved on the bottom of the high-frequency vibrating cylinder 4 and fixed by a clamp. A sand discharge port 51 is provided at the bottom of the valve body. The valve body power line 52 is connected to the PLC control system.

[0032] The bracket 6 includes a support frame 61 and a diversion structure 62. The support frame 61 is provided with adjustable feet at the bottom, and the top of the frame is fixed with a U-shaped pipe clamp 63 to fix the pipe clamp valve 5. The diversion structure 62 is an inverted V-shape and is located below the sand discharge port 51. The diversion structure 62 is fixed to the bottom of the support frame 61 by bolts.

[0033] The spiral guide vane 31 is made of 304 stainless steel plate with a thickness of 8mm, a pitch of 8-12cm, and a spiral angle of 30°-45°. It is fixed to the inner wall of the conical sand storage tank 3 by welding.

[0034] The high-frequency vibrating cylinder 4 has a vibration frequency of 30-80Hz and an amplitude of 1-3mm. It is connected to the annular mounting groove on the outer wall of the conical sand storage tank 3 by bolts through an annular bracket.

[0035] The diversion structure 62 is a stainless steel panel or a mesh steel plate, and the diversion angle is 50°-70°.

[0036] The conical sand storage tank 3 has a 45° cone angle and a wall thickness of 4mm.

[0037] The sealing ring is made of fluororubber.

[0038] Example 2:

[0039] The structure of the low-consumption intelligent centrifugal filtration system in this embodiment is basically the same as that in Embodiment 1. The difference is that the clamp valve 5 is pneumatic (GJQ-100), the valve body rubber sleeve has a pressure resistance of ≥0.6MPa, and the opening and closing time is ≤1 second.

[0040] Operating principle:

[0041] This device is a low-consumption intelligent centrifugal filtration system. Sand removal is assisted only by a high-frequency vibrating cylinder, eliminating the need for additional flushing. The water consumption for a single sand removal is less than 0.5L, saving more than 85% of water compared to traditional filtration equipment. Energy consumption comes only from valve actuation and vibrating cylinder vibration, using less than 1 / 3 of the electricity of traditional equipment, truly achieving "dual low consumption". Its core functions are as follows:

[0042] Before starting, check the components to ensure that the connecting flanges of centrifuge tank 1 and conical sand storage tank 3 are not loose, check that the knife gate valve 2 and clamp valve 5 are in the closed state, and ensure that the sand discharge port 51 is aligned with the diversion structure 62.

[0043] Next, connect the power supply (AC 220V), turn on the PLC control cabinet (Siemens S7-1200), connect the air source (air pressure ≥ 0.6MPa) to the clamp valve 5, and then start it according to the following steps:

[0044] Step 1: Open the inlet electric valve, and the sand-containing water enters the centrifuge tank through the inlet;

[0045] Step 2: Observe the PLC display screen to confirm that the pressure sensor (PTJ-501) value is normal (initial value < 5kPa);

[0046] Step 3: The system automatically enters filtration mode, clean water is discharged from the overflow pipe, and sand and gravel settle into the sand storage tank. Automatic sand discharge process trigger conditions:

[0047] When the pressure at the bottom of the sand storage tank is ≥5kPa, the PLC will automatically trigger the sand discharge program.

[0048] Sand removal steps:

[0049] 0 seconds: The PLC closes the inlet electric valve and knife gate valve 2, cutting off the water flow;

[0050] 1 second: Open the clamp valve 5 and start the high-frequency vibrating cylinder 4;

[0051] 1-11 seconds: Sand and gravel are diverted 52 times by the diversion structure, requiring no human intervention throughout the process;

[0052] 11 seconds: Close the vibratory cylinder and the clamp valve;

[0053] 12 seconds: Restart the inlet and the gate valve, and the system resumes filtration.

[0054] In an emergency:

[0055] Select "Manual Mode" on the PLC interface, then turn on the clamp valve and vibrating cylinder in sequence to force sand removal for 10 seconds.

[0056] System shutdown:

[0057] Step 1: Close the inlet electric valve to stop the water supply.

[0058] Step 2: After the pressure value displayed on the PLC returns to zero, disconnect the power supply and the air supply.

[0059] Step 3: Clean the residual sand and gravel from the diversion structure 62 and check the valve sealing.

[0060] Precautions:

[0061] Do not touch the vibrating cylinder or moving support during operation to avoid mechanical damage. Regularly inspect the electrical wiring to prevent the risk of leakage.

[0062] Maintenance recommendations:

[0063] Clean the centrifuge drum's inner walls and guide vanes weekly to prevent sand and gravel buildup. Calibrate the pressure sensor monthly to ensure data accuracy. Apply an anti-rust coating (epoxy resin recommended) to the support guide channels quarterly.

[0064] Troubleshooting:

[0065] Poor sand discharge: Check if the amplitude of the vibrating cylinder is normal and if the diversion structure 62 is offset.

[0066] Abnormal pressure: Clean the sensors at the bottom of the sand storage tank.

[0067] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship when the device or element is in normal use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation at any time, or be constructed and operated in a specific orientation, unless otherwise stated in the text.

[0068] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A low consumption intelligent centrifugal filtration system, characterized in that, include: The centrifuge bucket has an overflow pipe at the top center that connects to an external clean water pipe, and a water inlet on the side wall that connects to an external water inlet pipe. The lower end of the overflow pipe is tangent to the lower end of the water inlet pipe. The bottom of the centrifuge bucket has a circular connecting flange and a sealing ring. A knife gate valve, which is bolted to the bottom of the centrifuge tank; A conical sand storage tank, wherein the conical sand storage tank is in the shape of an inverted truncated cone, the inner wall of the tank is provided with spiral guide vanes, a pressure sensor is embedded at the bottom of the tank, and the conical sand storage tank is connected to the centrifuge tank flange through a knife gate valve; A high-frequency vibrating cylinder, which integrates an ultrasonic generator, a vibrating rod and a vibration transmission rod inside, and is equipped with a protective shell on the outside, with a top clamp connecting to a conical sand storage tank; A clamp valve is fitted onto the bottom of a high-frequency vibrating cylinder and fixed by a clamp. A sand discharge port is provided at the bottom of the valve body, and the valve body power line is connected to the PLC control system. The bracket includes a support frame and a diversion structure. The support frame has adjustable feet at the bottom and a pipe clamp valve is fixed at the top of the frame by a U-shaped pipe clamp. The diversion structure is inverted V-shaped and is located below the sand discharge port. The diversion structure is fixed to the bottom of the support frame by bolts.

2. A low consumption intelligent centrifugal filtration system according to claim 1, characterized in that, The spiral guide vane is made of 304 stainless steel plate with a thickness of 8mm, a pitch of 8-12cm, and a spiral angle of 30°-45°. It is fixed to the inner wall of the conical sand storage tank by welding.

3. A low consumption intelligent centrifugal filtration system according to claim 1, characterized in that, The high-frequency vibrating cylinder has a vibration frequency of 30-80Hz and an amplitude of 1-3mm. It is bolted to the annular mounting groove on the outer wall of the conical sand storage tank via an annular bracket.

4. A low consumption intelligent centrifugal filtration system according to claim 1, characterized in that, The diversion structure is a stainless steel panel or a mesh steel plate, and the diversion angle is 50°-70°.

5. A low consumption intelligent centrifugal filtration system according to claim 1, characterized in that, The conical sand storage tank has a 45° cone angle and a wall thickness of 4 mm.

6. A low consumption intelligent centrifugal filtration system according to claim 1, characterized in that, The sealing ring is made of fluororubber.

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