An efficient rural drinking water treatment device and operation method

Abstract

The present invention relates to the technical field of drinking water treatment, and particularly relates to an efficient rural drinking water treatment device and an operation method, including: a raw water tank and a clear water tank, wherein the raw water tank is fixedly connected to the top of the clear water tank and the connection part between the two is not communicated; the clear water tank includes: a clear water area, a steady flow area and a water distribution area which are arranged in sequence from top to bottom, a centrifugal purification component is arranged at the bottom end of the clear water tank, the raw water outlet end of the raw water tank is communicated with the raw water inlet end of the centrifugal purification component through a communication component, the water outlet end of the centrifugal purification component is communicated with the bottom end of the water distribution area, and a filtering component is arranged between the clear water area and the steady flow area. The present invention utilizes the combination of semi-circular corridors with different radii to generate centrifugal forces of different magnitudes, forming a centrifugal effect with variable speed, variable intensity and variable rhythm, and orderly centrifugally settling and removing particles with different densities in water through centrifugal effects in different sequences.

Description

Technical Field

[0001] The present invention relates to the technical field of drinking water treatment, and particularly relates to an efficient rural drinking water treatment device and an operation method thereof. Background Art

[0002] With the development of the economy, the continuous improvement of the standards for domestic drinking water, the attention of the country to the safety guarantee of rural drinking water, and the application of advanced water treatment technologies, the quality of rural drinking water has been improved to a certain extent. At the same time, with the promulgation of the new "Domestic Drinking Water Standards" (GB5749-2022) in China, the requirements for the quality standards of domestic drinking water have been greatly improved, making it extremely urgent to improve the safety guarantee technology and equipment performance of rural drinking water. At present, the existing rural drinking water purification equipment has deficiencies such as short service life, poor anti-shock load capacity when water quality fluctuates, and unstable effluent water quality, so it is difficult to be widely promoted. Summary of the Invention

[0003] The purpose of the present invention is to provide an efficient rural drinking water treatment device and an operation method thereof to solve the technical problems existing in the above background art.

[0004] To achieve the above purpose, the technical solution of the present invention is as follows:

[0005] An efficient rural drinking water treatment device includes: a raw water tank and a clean water tank. The raw water tank is fixedly connected to the top of the clean water tank and the connection part between the two is not communicated; the clean water tank includes: a clean water area, a steady flow area, and a water distribution area arranged in sequence from top to bottom. A centrifugal purification component is arranged at the bottom of the clean water tank. The raw water outlet end of the raw water tank is connected to the raw water inlet end of the centrifugal purification component through a connection component. The outlet end of the centrifugal purification component is connected to the bottom of the water distribution area. A filtering component is arranged between the clean water area and the steady flow area.

[0006] Further, a raw water inlet pipe and an overflow pipe communicated with the inner cavity of the raw water tank are respectively arranged on the upper part of the raw water tank. A raw water inlet valve is arranged on the raw water inlet pipe, and an overflow port valve is arranged on the overflow pipe; a water tank cover plate is fixedly installed at the top of the raw water tank; a clean water outlet pipe is arranged on one side of the lower part of the clean water area of the clean water tank, and a clean water outlet valve is arranged on the clean water outlet pipe; several supporting feet are arranged at the bottom of the clean water tank, and a clean water tank pressure relief exhaust pipe is arranged at the top of the clean water tank. The bottom end of the clean water tank pressure relief exhaust pipe is communicated with the inner cavity of the clean water tank, and the top end of the clean water tank pressure relief exhaust pipe penetrates and extends above the water tank cover plate.

[0007] Further, the connection component includes: a three-way control valve, a chemical dosing port, a valve, a flow control ball valve I, a flow control ball valve II, a flow control ball valve III, a flow control ball valve IV, a flow control ball valve V, a water purifying agent mixing pipe, a raw water distribution pipe, a four-way control valve, and a raw water tank emptying pipe. A raw water outlet pipe communicating with the inner cavity of the raw water tank is arranged on one side of the lower part of the raw water tank. One end of the raw water outlet pipe is connected to one end of the three-way control valve. The other two ends of the three-way control valve are respectively connected to one end of the water purifying agent mixing pipe and the raw water distribution pipe. The other ends of the water purifying agent mixing pipe and the raw water distribution pipe are respectively communicated with the two ends of the four-way control valve. The other two ends of the four-way control valve are respectively connected to the raw water tank emptying pipe and the water inlet end of the centrifugal purification component. A chemical dosing port is arranged on the water purifying agent mixing pipe. A valve is arranged on the chemical dosing port. Flow control ball valve I, flow control ball valve II, flow control ball valve III, flow control ball valve IV, and flow control ball valve V are sequentially arranged on the water purifying agent mixing pipe from top to bottom.

[0008] Further, the centrifugal purification component includes: a first centrifugal purification area and a second centrifugal purification area. The first centrifugal purification area and the second centrifugal purification area are fixedly connected on the opposite sides. The first centrifugal purification area and the second centrifugal purification area both include: a primary centrifugal corridor, a secondary centrifugal corridor, and a tertiary centrifugal corridor. The primary centrifugal corridor, the secondary centrifugal corridor, and the tertiary centrifugal corridor are all semi-circular rings. The primary centrifugal corridor, the secondary centrifugal corridor, and the tertiary centrifugal corridor in each centrifugal purification area are coaxially arranged from outside to inside in sequence. The two ends of each centrifugal corridor are respectively a corridor water inlet and a corridor water outlet. Among two adjacent centrifugal corridors, the corridor water inlet of one centrifugal corridor and the corridor water outlet of the other centrifugal corridor are located on the same side. The water flowing into the centrifugal purification component from the connection component undergoes six-stage centrifugal purification treatment and then flows into the water distribution area.

[0009] Further, a connecting pipe communicating with the four-way control valve is arranged at the corridor water inlet of the primary centrifugal corridor in the first centrifugal purification area. The corridor water outlet of the primary centrifugal corridor in the first centrifugal purification area is communicated with the corridor water inlet of the secondary centrifugal corridor in the first centrifugal purification area. The corridor water outlet of the secondary centrifugal corridor in the first centrifugal purification area is communicated with the corridor water inlet of the tertiary centrifugal corridor in the first centrifugal purification area. The corridor water outlet of the tertiary centrifugal corridor in the first centrifugal purification area is communicated with the corridor water inlet of the tertiary centrifugal corridor in the second centrifugal purification area. The corridor water outlet of the tertiary centrifugal corridor in the second centrifugal purification area is communicated with the corridor water inlet of the secondary centrifugal corridor in the second centrifugal purification area. The corridor water outlet of the secondary centrifugal corridor in the second centrifugal purification area is communicated with the corridor water inlet of the primary centrifugal corridor in the second centrifugal purification area. The corridor water outlet of the primary centrifugal corridor in the second centrifugal purification area is communicated with the water distribution area.

[0010] Alternatively, a connecting pipe communicating with a four-way control valve is provided at the corridor water inlet of the first-stage centrifugal corridor in the first centrifugal purification area. The corridor water outlet of the first-stage centrifugal corridor in the first centrifugal purification area communicates with the corridor water inlet of the first-stage centrifugal corridor in the second centrifugal purification area. The corridor water outlet of the first-stage centrifugal corridor in the second centrifugal purification area communicates with the corridor water inlet of the second-stage centrifugal corridor in the second centrifugal purification area. The corridor water outlet of the second-stage centrifugal corridor in the second centrifugal purification area communicates with the corridor water inlet of the second-stage centrifugal corridor in the first centrifugal purification area. The corridor water outlet of the second-stage centrifugal corridor in the first centrifugal purification area communicates with the corridor water inlet of the third-stage centrifugal corridor in the first centrifugal purification area. The corridor water outlet of the third-stage centrifugal corridor in the first centrifugal purification area communicates with the corridor water inlet of the third-stage centrifugal corridor in the second centrifugal purification area. The corridor water outlet of the third-stage centrifugal corridor in the second centrifugal purification area communicates with the water distribution area.

[0011] Further, it further includes: a corridor sludge discharge port, a sludge discharge pipe and a sludge discharge valve. A sunken hole is opened in the middle of the bottom end of the clear water tank. The top ends of the arc-shaped recessed parts of the two third-stage centrifugal corridors in the first centrifugal purification area and the second centrifugal purification area are hermetically and fixedly connected to the bottom end of the clear water tank to form a sludge collection area. The sludge collection area is directly below the sunken hole. Corridor sludge discharge ports are provided on both sides of the bottom end of the sludge collection area facing each other, on one side of the bottom ends of the first-stage, second-stage and third-stage centrifugal corridors in the first centrifugal purification area, and on the other side of the bottom ends of the first-stage, second-stage and third-stage centrifugal corridors in the second centrifugal purification area. These eight sludge discharge ports are all connected to the sludge discharge pipe, and a sludge discharge valve is provided on the sludge discharge pipe.

[0012] Further, a water distribution partition is provided between the water distribution area and the flow stabilization area, and a number of evenly distributed water distribution round holes are provided on the water distribution partition.

[0013] Further, the filtering assembly includes: a first filter layer, a second filter layer and a third filter layer. The first filter layer, the second filter layer and the third filter layer are arranged in sequence from bottom to top. The first filter layer is a quartz sand filter layer, the second filter layer is an activated carbon filter layer, and the third filter layer is a microfiltration layer using a microfiltration membrane or a nanofiltration layer using a nanofiltration membrane.

[0014] An operation method of an efficient rural drinking water treatment device is as follows:

[0015] I. Determine the turbidity, permanganate index and particle density stability of the raw water.

[0016] II. When the turbidity and permanganate index of the raw water are low, close the sludge discharge valve and the clear water outlet valve, open the overflow port valve and the raw water inlet valve. The raw water enters the raw water tank through the raw water inlet pipe. Adjust the three-way control valve to make the raw water flow into the raw water distribution pipe. At the same time, adjust the four-way control valve to introduce the raw water into the first centrifugal purification area.

[0017] When the turbidity and permanganate index of the raw water are relatively high, close the sludge discharge valve and the clean water outlet valve, open the overflow port valve and the raw water inlet valve. The raw water enters the raw water tank through the raw water inlet pipe. Adjust the three-way control valve and the four-way control valve so that the raw water does not enter the raw water distribution pipe. Adjust the three-way control valve to make the raw water flow into the flocculant mixing pipe. At the same time, adjust the four-way control valve to guide the raw water into the first centrifugal purification area. Meanwhile, open the valve and introduce the flocculant into the raw water through the dosing pipe for mixing. Adjust the opening degrees of the flow control ball valve 1, flow control ball valve 2, flow control ball valve 3, flow control ball valve 4, and flow control ball valve 5 respectively;

[0018] III. When the particle density in the raw water is unstable, select operation mode 1: The raw water or the water purified by the flocculant enters the corridor water inlet of the secondary centrifugal corridor in the first centrifugal purification area from the corridor water outlet of the primary centrifugal corridor in the first centrifugal purification area. Then, it enters the corridor water inlet of the tertiary centrifugal corridor in the first centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor in the first centrifugal purification area. Then, it enters the corridor water inlet of the tertiary centrifugal corridor in the second centrifugal purification area from the corridor water outlet of the tertiary centrifugal corridor in the first centrifugal purification area. Then, it enters the corridor water inlet of the secondary centrifugal corridor in the second centrifugal purification area from the corridor water outlet of the tertiary centrifugal corridor in the second centrifugal purification area. Then, it enters the corridor water inlet of the primary centrifugal corridor in the second centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor in the second centrifugal purification area. Finally, it enters the water distribution area from the corridor water outlet of the primary centrifugal corridor in the second centrifugal purification area;

[0019] When the particle density in the raw water is stable, select operation mode 2: The raw water or the water purified by the flocculant enters the corridor water inlet of the primary centrifugal corridor in the second centrifugal purification area from the corridor water outlet of the primary centrifugal corridor in the first centrifugal purification area. Then, it enters the corridor water inlet of the secondary centrifugal corridor in the second centrifugal purification area from the corridor water outlet of the primary centrifugal corridor in the second centrifugal purification area. Then, it enters the corridor water inlet of the secondary centrifugal corridor in the first centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor in the second centrifugal purification area. Then, it enters the corridor water inlet of the tertiary centrifugal corridor in the first centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor in the first centrifugal purification area. Then, it enters the corridor water inlet of the tertiary centrifugal corridor in the second centrifugal purification area from the corridor water outlet of the tertiary centrifugal corridor in the first centrifugal purification area. Finally, it enters the water distribution area from the corridor water outlet of the tertiary centrifugal corridor in the second centrifugal purification area;

[0020] IV. The water entering the water distribution area is evenly distributed by the water distribution partition and then enters the steady flow area. After being stabilized in the steady flow area, it passes through multiple filtration purifications of filter layer 1, filter layer 2, and filter layer 3 in sequence and then enters the clean water tank. Open the clean water outlet valve, and the clean water can flow out from the clean water outlet pipe;

[0021] Further, when backwashing is required, close the raw water inlet valve, close the three-way control valve, and stop the purification process; close the four-way control valve to stop the water flow in all directions; close the clean water outlet valve, open the sludge discharge valve, and start the backwashing process; first, empty the sludge in the sludge collection area and the centrifugal corridors at all levels in the first and second centrifugal purification areas, then the clean water in the clean water tank flows in the reverse direction, successively flushing filter layer three, filter layer two, and filter layer one, flushing the stable flow area and the water distribution partition plate, and flushing the corridors at all levels in the centrifugal purification area until all the muddy water is drained, then close the sludge discharge valve to complete the backwashing process.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] The present invention makes full use of scientific theories such as the law of conservation and transformation of energy in the fluid flow process, the Bernoulli equation principle of fluid mechanics, and the Newton centrifugal force law in non-inertial systems. By controlling the inlet flow rate and outlet flow rate, the water level in the raw water tank is kept constant, ensuring sufficient and stable pressure and constant flow velocity; in the purification process, the potential energy of the high water head position in the raw water tank is converted into water flow kinetic energy, so that the water flows through the centrifugal purification area at a certain speed, and the organic particles in the water are removed by centrifugal action, and then the water flow kinetic energy is converted and accumulated into the potential energy in the clean water tank; in the backwashing process, the potential energy in the clean water tank is released, so that the water flow has a certain pressure energy and kinetic energy, generating a certain flow velocity, and then forming a relatively large scouring force to wash the filter media, scour the walls of the stable flow area and the water distribution area, and wash the corridors in the centrifugal purification area to remove the attachments and silt in each area, playing a role of backwashing and cleaning to achieve the cleaning effect. Description of the Drawings

[0024] Figure 1 is the structural schematic diagram of the present invention;

[0025] Figure 2 is the structural schematic diagram of the water distribution partition plate in the present invention;

[0026] Figure 3 is the structural view of the centrifugal purification assembly in the present invention;

[0027] Figure 4 is the cross-sectional view of the centrifugal purification assembly when the present invention adopts operation mode one;

[0028] Figure 5 is the longitudinal sectional view of the centrifugal purification assembly when the present invention adopts operation mode one;

[0029] Figure 6 is the cross-sectional view of the centrifugal purification assembly when the present invention adopts operation mode two;

[0030] Figure 7 is the longitudinal sectional view of the centrifugal purification assembly when the present invention adopts operation mode two.

[0031] The reference numerals in the drawings are as follows: 1 - raw water inlet pipe, 2 - raw water inlet valve, 3 - water tank cover plate, 4 - raw water tank, 5 - overflow port valve, 6 - overflow pipe, 7 - three-way control valve, 8 - chemical dosing port, 9 - valve, 10 - flow control ball valve I, 11 - flow control ball valve II, 12 - flow control ball valve III, 13 - flow control ball valve IV, 14 - flow control ball valve V, 15 - water purifying agent mixing pipe, 16 - raw water distribution pipe, 17 - four-way control valve, 18 - raw water tank drain pipe, 19 - support feet, 20 - primary centrifugal corridor, 21 - secondary centrifugal corridor, 22 - tertiary centrifugal corridor, 23 - corridor sludge discharge port, 24 - sludge discharge pipe, 25 - sludge discharge valve, 26 - clean water tank, 27 - steady flow area, 28 - water distribution area, 29 - sludge collection area, 30 - water distribution partition, 31 - clean water outlet pipe, 32 - clean water outlet valve, 33 - clean water tank pressure relief exhaust pipe, 34 - filter layer I, 35 - filter layer II, 36 - filter layer III, 37 - water distribution round holes. Detailed implementation manners

[0032] The present invention will be further described in detail below in conjunction with the drawings and embodiments.

[0033] See Figures 1 to 7 As shown, a high-efficiency rural drinking water treatment device includes: a raw water tank 4 and a clean water tank 26. The raw water tank 4 is fixedly connected to the top end of the clean water tank 26 and the connection part between the two is not communicated; the clean water tank 26 includes: a clean water area, a steady flow area 27 and a water distribution area 28 arranged in sequence from top to bottom. A centrifugal purification component is arranged at the bottom end of the clean water tank 26. The raw water outlet end of the raw water tank 4 is connected to the raw water inlet end of the centrifugal purification component through a connection component, and the water outlet end of the centrifugal purification component is connected to the bottom end of the water distribution area 28. A filtering component is arranged between the clean water area and the steady flow area 27.

[0034] A raw water inlet pipe 1 and an overflow pipe 6 that are communicated with the inner cavity of the raw water tank 4 are respectively arranged on the upper part of the raw water tank 4. A raw water inlet valve 2 is arranged on the raw water inlet pipe 1, and an overflow port valve 5 is arranged on the overflow pipe 6. The overflow port valve 5 can not only play an overflow role but also discharge the air in the raw water tank 4 in time, playing a role of pressure relief and pressure stabilization. During the purification process, the overflow port valve 5 is in an open state all the time, playing an overflow role to avoid the water level in the raw water tank being too high. At the same time, it also has an exhaust and pressure relief function to ensure the pressure stability in the raw water tank; a water tank cover plate 3 is fixedly installed at the top end of the raw water tank 4; a clean water outlet pipe 31 is arranged on one side of the lower part of the clean water area of the clean water tank 26, and a clean water outlet valve 32 is arranged on the clean water outlet pipe 31; a plurality of support feet 19 are arranged at the bottom end of the clean water tank 26, and a clean water tank pressure relief exhaust pipe 33 is arranged at the top end of the clean water tank 26. The bottom end of the clean water tank pressure relief exhaust pipe 33 is communicated with the inner cavity of the clean water tank 26, and the top end of the clean water tank pressure relief exhaust pipe 33 penetrates and extends above the water tank cover plate 3. The gas pressure in the clean water tank 26 can be discharged through the clean water tank pressure relief exhaust pipe 33 to ensure the pressure stability of each area and eliminate the water flow resistance at the same time.

[0035] The connected components include: a three-way control valve 7, a chemical dosing port 8, a valve 9, a flow control ball valve one 10, a flow control ball valve two 11, a flow control ball valve three 12, a flow control ball valve four 13, a flow control ball valve five 14, a water purifying agent mixing pipe 15, a raw water distribution pipe 16, a four-way control valve 17, and a raw water tank drain pipe 18. On one side of the lower part of the raw water tank 4, there is a raw water outlet pipe communicating with the inner cavity of the raw water tank 4. One end of the raw water outlet pipe is connected to one end of the three-way control valve 7. The other two ends of the three-way control valve 7 are respectively connected to one end of the water purifying agent mixing pipe 15 and the raw water distribution pipe 16. The other ends of the water purifying agent mixing pipe 15 and the raw water distribution pipe 16 are respectively communicated with both ends of the four-way control valve 17. The other two ends of the four-way control valve 17 are respectively connected to the raw water tank drain pipe 18 and the water inlet end of the centrifugal purification component; a chemical dosing port 8 is arranged on the water purifying agent mixing pipe 15, a valve 9 is arranged on the chemical dosing port 8, and the flow control ball valve one 10, the flow control ball valve two 11, the flow control ball valve three 12, the flow control ball valve four 13, and the flow control ball valve five 14 are sequentially arranged on the water purifying agent mixing pipe 15 from top to bottom.

[0036] The centrifugal purification component includes: a first centrifugal purification area and a second centrifugal purification area. The opposite sides of the first centrifugal purification area and the second centrifugal purification area are fixedly connected. The first centrifugal purification area and the second centrifugal purification area both include: a primary centrifugal corridor 20, a secondary centrifugal corridor 21, and a tertiary centrifugal corridor 22. The primary centrifugal corridor 20, the secondary centrifugal corridor 21, and the tertiary centrifugal corridor 22 are all semi-circular rings. The primary centrifugal corridor 20, the secondary centrifugal corridor 21, and the tertiary centrifugal corridor 22 in each centrifugal purification area are coaxially arranged from outside to inside in sequence. Both ends of each centrifugal corridor are respectively a corridor water inlet and a corridor water outlet; among two adjacent centrifugal corridors, the corridor water inlet of one centrifugal corridor and the corridor water outlet of the other centrifugal corridor are located on the same side. The water flowing into the centrifugal purification component from the connected components undergoes six-stage centrifugal purification treatment and flows into the water distribution area 28.

[0037] A connecting pipe communicating with the four-way control valve 17 is arranged at the corridor water inlet of the primary centrifugal corridor 20 in the first centrifugal purification area. The corridor water outlet of the primary centrifugal corridor 20 in the first centrifugal purification area is communicated with the corridor water inlet of the secondary centrifugal corridor 21 in the first centrifugal purification area. The corridor water outlet of the secondary centrifugal corridor 21 in the first centrifugal purification area is communicated with the corridor water inlet of the tertiary centrifugal corridor 22 in the first centrifugal purification area. The corridor water outlet of the tertiary centrifugal corridor 22 in the first centrifugal purification area is communicated with the corridor water inlet of the tertiary centrifugal corridor 22 in the second centrifugal purification area. The corridor water outlet of the tertiary centrifugal corridor 22 in the second centrifugal purification area is communicated with the corridor water inlet of the secondary centrifugal corridor 21 in the second centrifugal purification area. The corridor water outlet of the secondary centrifugal corridor 21 in the second centrifugal purification area is communicated with the corridor water inlet of the primary centrifugal corridor 20 in the second centrifugal purification area. The corridor water outlet of the primary centrifugal corridor 20 in the second centrifugal purification area is communicated with the water distribution area 28.

[0038] Alternatively, the corridor inlet of the first-stage centrifugal corridor 20 in the first centrifugal purification zone is provided with a connecting pipe connected to the four-way control valve 17, the corridor outlet of the first-stage centrifugal corridor 20 in the first centrifugal purification zone is connected to the corridor inlet of the first-stage centrifugal corridor 20 in the second centrifugal purification zone, the corridor outlet of the first-stage centrifugal corridor 20 in the second centrifugal purification zone is connected to the corridor inlet of the second-stage centrifugal corridor 21 in the second centrifugal purification zone, the corridor outlet of the second-stage centrifugal corridor 21 in the second centrifugal purification zone is connected to the corridor inlet of the second-stage centrifugal corridor 21 in the first centrifugal purification zone, the corridor outlet of the second-stage centrifugal corridor 21 in the first centrifugal purification zone is connected to the corridor inlet of the tertiary centrifugal corridor 22 in the first centrifugal purification zone, the corridor outlet of the tertiary centrifugal corridor 22 in the first centrifugal purification zone is connected to the corridor inlet of the tertiary centrifugal corridor 22 in the second centrifugal purification zone, and the corridor outlet of the tertiary centrifugal corridor 22 in the second centrifugal purification zone is connected to the water distribution zone 28.

[0039] The high-efficiency agricultural drinking water treatment equipment also includes: a gallery mud discharge port 23, a mud discharge pipe 24 and a mud discharge valve 25. A sinking hole is opened in the middle of the bottom end of the clean water tank 26. The top ends of the arc-shaped recessed parts of the two three-stage centrifugal galleries 22 in the first centrifugal purification area and the second centrifugal purification area are sealed and fixedly connected to the bottom end of the clean water tank 26 to form a mud collecting area 29. The mud collecting area 29 is located directly below the sinking hole; gallery mud discharge ports 23 are arranged on the opposite sides of the bottom end of the mud collecting area 29, one side of the bottom end of the first centrifugal gallery 20, the second centrifugal gallery 21 and the third centrifugal gallery 22 in the first centrifugal purification area, and the other side of the bottom end of the first centrifugal gallery 20, the second centrifugal gallery 21 and the third centrifugal gallery 22 in the second centrifugal purification area. The eight mud discharge ports 23 are all connected to the mud discharge pipe 24, and the mud discharge pipe 24 is provided with a mud discharge valve 25.

[0040] A water distribution baffle 30 is arranged between the water distribution area 28 and the steady flow area 27, and a plurality of water distribution circular holes 37 are evenly arranged on the water distribution baffle 30; the water distribution circular holes 37 of different diameters are opened on the water distribution baffle 30, the diameter of the water distribution circular holes 37 near the centrifugal gallery outlet is 2 cm, and the diameters of the water distribution circular holes 37 away from the new gallery outlet are 3 cm and 5 cm respectively; the purpose of this design is to ensure the water pressure balance at various locations of the water distribution baffle, thereby ensuring the average flow stability of the flow velocity in the steady flow area.

[0041] The filter assembly includes: filter layer one 34, filter layer two 35 and filter layer three 36, which are arranged in sequence from bottom to top. Filter layer one 34 is a quartz sand filter layer, filter layer two 35 is an activated carbon filter layer, and filter layer three 36 is a microfiltration layer using a microfiltration membrane or a nanofiltration layer using a nanofiltration membrane.

[0042] An operating method of a high-efficiency agricultural drinking water treatment equipment, the operating method is as follows:

[0043] 1. Determine the turbidity, permanganate index, and particle density stability of the raw water;

[0044] 2. When the turbidity and permanganate index of the raw water are low, close the sludge discharge valve 25 and the clear water outlet valve 32, open the overflow port valve 5 and the raw water inlet valve 2. The raw water enters the raw water tank 4 through the raw water inlet pipe 1. Adjust the three-way control valve 7 to make the raw water flow into the raw water distribution pipe 16. At the same time, adjust the four-way control valve 17 to introduce the raw water into the first centrifugal purification area;

[0045] When the turbidity and permanganate index of the raw water are high, close the sludge discharge valve 25 and the clear water outlet valve 32, open the overflow port valve 5 and the raw water inlet valve 2. The raw water enters the raw water tank 4 through the raw water inlet pipe 1. Adjust the three-way control valve 7 and the four-way control valve 17 so that the raw water does not enter the raw water distribution pipe 16. Adjust the three-way control valve 7 to make the raw water flow into the flocculant mixing pipe 15. At the same time, adjust the four-way control valve 17 to introduce the raw water into the first centrifugal purification area. Meanwhile, open the valve 9 and introduce the flocculant into the raw water through the dosing pipe 8. According to the water quality, the flocculant can be selected from food-grade flocculants such as liquid polyaluminum chloride or potassium permanganate. Adjust the opening degrees of the flow control ball valve 1, flow control ball valve 2, flow control ball valve 3, flow control ball valve 4, and flow control ball valve 5 respectively. The initial opening degrees of the flow control ball valve 1 to flow control ball valve 5 are 70%, 100%, 70%, 100%, and 70% in sequence. Control the opening degrees of the flow control ball valve 1 to flow control ball valve 5 respectively to adjust the change of the water flow velocity, so as to generate continuous velocity changes in the flocculant mixing pipe 15, which is helpful for the mixing of the medicament; the opening degree can be optimized according to the actual treatment effect; taking the opening angle of zero degrees as fully open and the opening angle of 90 degrees as fully closed, the opening angles of the flow control ball valve 1 to flow control ball valve 5 are 45°→0°→45°→0°→45° in sequence, or can be set to 30°→0°→30°→0°→30°, or can also be set to 45°→0°→30°→0°→45°; adopt different setting methods according to different raw water quality conditions to achieve the best mixing and flocculation reaction effect;

[0046] III. When the particle density in the raw water is unstable, select Operation Mode 1: The raw water or the water purified by the water purifying agent enters the corridor water inlet of the secondary centrifugal corridor 21 in the first centrifugal purification area from the corridor water outlet of the primary centrifugal corridor 20 in the first centrifugal purification area. Then, it enters the corridor water inlet of the tertiary centrifugal corridor 22 in the first centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor 21 in the first centrifugal purification area. Next, it enters the corridor water inlet of the tertiary centrifugal corridor 22 in the second centrifugal purification area from the corridor water outlet of the tertiary centrifugal corridor 22 in the first centrifugal purification area. Then, it enters the corridor water inlet of the secondary centrifugal corridor 21 in the second centrifugal purification area from the corridor water outlet of the tertiary centrifugal corridor 22 in the second centrifugal purification area. Next, it enters the corridor water inlet of the primary centrifugal corridor 20 in the second centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor 21 in the second centrifugal purification area. Finally, it enters the water distribution area 28 from the corridor water outlet of the primary centrifugal corridor 20 in the second centrifugal purification area; that is, in accordance with Figure 4 and 5 The A-B-C-D-E-F-J-H-I-J-K-L flow sequence shown in; when adopting Operation Mode 1, the radii of the centrifugal corridors in the first centrifugal purification area decrease successively from the outside to the inside, and the centrifugal force increases successively, so that the particles with decreasing density in the water can be removed successively; after entering the second centrifugal purification area, the radii of the centrifugal corridors increase successively again, and the centrifugal force decreases successively, avoiding excessive shear force when the water flows out of the second centrifugal purification area and enters the water distribution area on the basis of ensuring the centrifugal purification effect, and ensuring the sedimentation purification effect in the water distribution area and the steady flow area; this operation mode is applicable to the water quality with obvious colloid coagulation reaction and unstable particle density during the water purification process.

[0047] When the particle density in the raw water is stable, select Operation Mode 2: The raw water or the water purified by the water purifying agent enters the corridor water inlet of the primary centrifugal corridor 20 in the second centrifugal purification area from the corridor water outlet of the primary centrifugal corridor 20 in the first centrifugal purification area. Then, it enters the corridor water inlet of the secondary centrifugal corridor 21 in the second centrifugal purification area from the corridor water outlet of the primary centrifugal corridor 20 in the second centrifugal purification area. Next, it enters the corridor water inlet of the secondary centrifugal corridor 21 in the first centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor 21 in the second centrifugal purification area. Then, it enters the corridor water inlet of the tertiary centrifugal corridor 22 in the first centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor 21 in the first centrifugal purification area. Next, it enters the corridor water inlet of the tertiary centrifugal corridor 22 in the second centrifugal purification area from the corridor water outlet of the tertiary centrifugal corridor 22 in the first centrifugal purification area. Finally, it enters the water distribution area 28 from the corridor water outlet of the tertiary centrifugal corridor 22 in the second centrifugal purification area; that is, in accordance with Figure 6 and 7The flow sequence of a-b-c-d-e-f-g-h-i-j-k-l shown in [the figure]; in the second operation mode, the centrifugal radii in the first and second centrifugal purification areas gradually decrease throughout the process, the centrifugal forces gradually increase, and particles with decreasing density are removed in sequence; this operation mode is suitable for water quality with relatively stable particle density in water.

[0048] IV. The water entering the water distribution area 28 is evenly distributed by the water distribution partition 30 and then enters the stable flow area 27. After being stabilized by the stable flow area 27, it passes through the first filter layer 34, the second filter layer 35, and the third filter layer 36 for multi-stage filtration and purification in sequence and then enters the clean water tank 26; when the clean water outlet valve 32 is opened, the clean water can flow out from the clean water outlet pipe 31.

[0049] V. When backwashing is required, close the raw water inlet valve 1, close the three-way control valve 7, and stop the purification process; close the four-way control valve 17 to stop the water flow in all directions; close the clean water outlet valve 32, open the sludge discharge valve 25, and start the backwashing process; after emptying the sludge in the sludge collection area 29 and each centrifugal corridor in the first and second centrifugal purification areas, at the same time, the clean water in the clean water tank 26 flows reversely to wash the third filter layer 36, the second filter layer 35, and the first filter layer 34 in sequence, wash the stable flow area 27 and the water distribution partition 30, and wash each corridor in the centrifugal purification area until all the muddy water is drained, then close the sludge discharge valve 25 to complete the backwashing process.

[0050] The present invention utilizes the combination of semi-circular corridors with different radii to generate different magnitudes of centrifugal forces, forming a centrifugal action with variable speed, variable intensity, and variable rhythm, and orderly centrifugally settling and removing particles with different densities in water through centrifugal actions in different sequences.

[0051] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0052] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any person skilled in the relevant art, without departing from the scope of the technical solution of the present invention, based on the technical essence of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. An efficient rural drinking water treatment device, characterized in that, Including: A raw water tank (4) and a clean water tank (26), the raw water tank (4) is fixedly connected to the top of the clean water tank (26) and the connection part between the two is not communicated; the clean water tank (26) includes: a clean water area, a steady flow area (27) and a water distribution area (28) arranged in sequence from top to bottom. A centrifugal purification component is arranged at the bottom end of the clean water tank (26). The raw water outlet end of the raw water tank (4) is communicated with the raw water inlet end of the centrifugal purification component through a communication component. The water outlet end of the centrifugal purification component is communicated with the bottom end of the water distribution area (28). A filtering component is arranged between the clean water area and the steady flow area (27); The communication component includes: a three-way control valve (7), a chemical dosing port (8), a valve (9), a flow control ball valve one (10), a flow control ball valve two (11), a flow control ball valve three (12), a flow control ball valve four (13), a flow control ball valve five (14), a water purifying agent mixing pipe (15), a raw water distribution pipe (16), a four-way control valve (17), a raw water tank emptying pipe (18). A raw water outlet pipe communicated with the inner cavity of the raw water tank (4) is arranged on one side of the lower part of the raw water tank (4). One end of the raw water outlet pipe is connected to one end of the three-way control valve (7). The other two ends of the three-way control valve (7) are respectively connected to one ends of the water purifying agent mixing pipe (15) and the raw water distribution pipe (16). The other ends of the water purifying agent mixing pipe (15) and the raw water distribution pipe (16) are respectively communicated with the two ends of the four-way control valve (17). The other two ends of the four-way control valve (17) are respectively connected to the raw water tank emptying pipe (18) and the water inlet end of the centrifugal purification component; a chemical dosing port (8) is arranged on the water purifying agent mixing pipe (15). A valve (9) is arranged on the chemical dosing port (8). Flow control ball valve one (10), flow control ball valve two (11), flow control ball valve three (12), flow control ball valve four (13) and flow control ball valve five (14) are arranged on the water purifying agent mixing pipe (15) in sequence from top to bottom; The centrifugal purification component includes: a first centrifugal purification area and a second centrifugal purification area. The first centrifugal purification area and the second centrifugal purification area are fixedly connected to each other on the opposite sides. The first centrifugal purification area and the second centrifugal purification area both include: a primary centrifugal corridor (20), a secondary centrifugal corridor (21) and a tertiary centrifugal corridor (22). The primary centrifugal corridor (20), the secondary centrifugal corridor (21) and the tertiary centrifugal corridor (22) are all semi-circular rings. The primary centrifugal corridor (20), the secondary centrifugal corridor (21) and the tertiary centrifugal corridor (22) in each centrifugal purification area are coaxially arranged from outside to inside in sequence. The two ends of each centrifugal corridor are respectively a corridor water inlet and a corridor water outlet; among two adjacent centrifugal corridors, the corridor water inlet of one centrifugal corridor and the corridor water outlet of the other centrifugal corridor are located on the same side. The water flowing into the centrifugal purification component from the communication component undergoes six-stage centrifugal purification treatment and then flows into the water distribution area (28); A connecting pipe communicating with a four-way control valve (17) is provided at the corridor water inlet of the first-stage centrifugal corridor (20) in the first centrifugal purification area. The corridor water outlet of the first-stage centrifugal corridor (20) in the first centrifugal purification area communicates with the corridor water inlet of the second-stage centrifugal corridor (21) in the first centrifugal purification area. The corridor water outlet of the second-stage centrifugal corridor (21) in the first centrifugal purification area communicates with the corridor water inlet of the third-stage centrifugal corridor (22) in the first centrifugal purification area. The corridor water outlet of the third-stage centrifugal corridor (22) in the first centrifugal purification area communicates with the corridor water inlet of the third-stage centrifugal corridor (22) in the second centrifugal purification area. The corridor water outlet of the third-stage centrifugal corridor (22) in the second centrifugal purification area communicates with the corridor water inlet of the second-stage centrifugal corridor (21) in the second centrifugal purification area. The corridor water outlet of the second-stage centrifugal corridor (21) in the second centrifugal purification area communicates with the corridor water inlet of the first-stage centrifugal corridor (20) in the second centrifugal purification area. The corridor water outlet of the first-stage centrifugal corridor (20) in the second centrifugal purification area communicates with the water distribution area (28). Alternatively, a connecting pipe communicating with a four-way control valve (17) is provided at the corridor water inlet of the first-stage centrifugal corridor (20) in the first centrifugal purification area. The corridor water outlet of the first-stage centrifugal corridor (20) in the first centrifugal purification area communicates with the corridor water inlet of the first-stage centrifugal corridor (20) in the second centrifugal purification area. The corridor water outlet of the first-stage centrifugal corridor (20) in the second centrifugal purification area communicates with the corridor water inlet of the second-stage centrifugal corridor (21) in the second centrifugal purification area. The corridor water outlet of the second-stage centrifugal corridor (21) in the second centrifugal purification area communicates with the corridor water inlet of the second-stage centrifugal corridor (21) in the first centrifugal purification area. The corridor water outlet of the second-stage centrifugal corridor (21) in the first centrifugal purification area communicates with the corridor water inlet of the third-stage centrifugal corridor (22) in the first centrifugal purification area. The corridor water outlet of the third-stage centrifugal corridor (22) in the first centrifugal purification area communicates with the corridor water inlet of the third-stage centrifugal corridor (22) in the second centrifugal purification area. The corridor water outlet of the third-stage centrifugal corridor (22) in the second centrifugal purification area communicates with the water distribution area (28).

2. The high-efficiency rural drinking water treatment equipment according to claim 1, characterized in that: The upper part of the original water tank (4) is respectively provided with an original water inlet pipe (1) and an overflow pipe (6) that communicate with the inner cavity of the original water tank (4). An original water inlet valve (2) is arranged on the original water inlet pipe (1), and an overflow port valve (5) is arranged on the overflow pipe (6). A water tank cover plate (3) is fixedly installed at the top of the original water tank (4). A clear water outlet pipe (31) is arranged on one side of the lower part of the clear water area of the clear water tank (26), and a clear water outlet valve (32) is arranged on the clear water outlet pipe (31). A plurality of supporting feet (19) are arranged at the bottom end of the clear water tank (26), and a clear water tank pressure relief exhaust pipe (33) is arranged at the top end of the clear water tank (26). The bottom end of the clear water tank pressure relief exhaust pipe (33) communicates with the inner cavity of the clear water tank (26), and the top end of the clear water tank pressure relief exhaust pipe (33) penetrates and extends above the water tank cover plate (3).

3. The efficient rural drinking water treatment device according to claim 2, wherein: It further includes: A corridor sludge discharge port (23), a sludge discharge pipe (24), and a sludge discharge valve (25). A sinking hole is formed in the middle of the bottom end of the clear water tank (26). The top ends of the arc-shaped recessed parts of the two three-stage centrifugal corridors (22) in the first centrifugal purification area and the second centrifugal purification area are hermetically and fixedly connected to the bottom end of the clear water tank (26) to form a sludge collection area (29). The sludge collection area (29) is located directly below the sinking hole. Corridor sludge discharge ports (23) are arranged on both sides of the bottom end of the sludge collection area (29) facing each other, on one side of the bottom ends of the first-stage centrifugal corridor (20), the second-stage centrifugal corridor (21), and the three-stage centrifugal corridor (22) in the first centrifugal purification area, and on the other side of the bottom ends of the first-stage centrifugal corridor (20), the second-stage centrifugal corridor (21), and the three-stage centrifugal corridor (22) in the second centrifugal purification area. The eight sludge discharge ports (23) are all connected to the sludge discharge pipe (24), and a sludge discharge valve (25) is arranged on the sludge discharge pipe (24).

4. An efficient rural drinking water treatment device according to claim 3, characterized in that: A water distribution partition plate (30) is arranged between the water distribution area (28) and the steady flow area (27), and a plurality of water distribution round holes (37) are evenly arranged on the water distribution partition plate (30).

5. An efficient rural drinking water treatment device according to claim 4, characterized in that: The filtering assembly includes: a first filter layer (34), a second filter layer (35), and a third filter layer (36). The first filter layer (34), the second filter layer (35), and the third filter layer (36) are arranged in sequence from bottom to top. The first filter layer (34) is a quartz sand filter layer, the second filter layer (35) is an activated carbon filter layer, and the third filter layer (36) is a microfiltration layer using a microfiltration membrane or a nanofiltration layer using a nanofiltration membrane.

6. The operating method of an efficient rural drinking water treatment device according to claim 5, characterized in that: The operation method is as follows:

1. Determine the turbidity, permanganate index, and particle density stability of the raw water; 2. When the turbidity and permanganate index of the raw water are low, close the sludge discharge valve (25) and the clear water outlet valve (32), open the overflow port valve (5) and the raw water inlet valve (2). The raw water enters the original water tank (4) from the original water inlet pipe (1), adjust the three-way control valve (7) to make the raw water flow into the raw water distribution pipe (16), and at the same time adjust the four-way control valve (17) to introduce the raw water into the first centrifugal purification area; When the turbidity and permanganate index of the raw water are relatively high, close the sludge discharge valve (25) and the clean water outlet valve (32), open the overflow port valve (5) and the raw water inlet valve (2). The raw water enters the raw water tank (4) from the raw water inlet pipe (1). Adjust the three-way control valve (7) and the four-way control valve (17) so that the raw water does not enter the raw water distribution pipe (16). Adjust the three-way control valve (7) to make the raw water flow into the flocculant mixing pipe (15). At the same time, adjust the four-way control valve (17) to introduce the raw water into the first centrifugal purification area. Meanwhile, open the valve (9) and introduce the flocculant into the raw water for mixing from the chemical dosing port (8). Adjust the opening degrees of the flow control ball valve one (10), the flow control ball valve two (11), the flow control ball valve three (12), the flow control ball valve four (13) and the flow control ball valve five (14) respectively; III. When the particle density in the raw water is unstable, select operation mode one: The raw water or the water purified by the flocculant enters the corridor water inlet of the secondary centrifugal corridor (21) in the first centrifugal purification area from the corridor water outlet of the primary centrifugal corridor (20) in the first centrifugal purification area, then enters the corridor water inlet of the tertiary centrifugal corridor (22) in the first centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor (21) in the first centrifugal purification area, then enters the corridor water inlet of the tertiary centrifugal corridor (22) in the second centrifugal purification area from the corridor water outlet of the tertiary centrifugal corridor (22) in the first centrifugal purification area, then enters the corridor water inlet of the secondary centrifugal corridor (21) in the second centrifugal purification area from the corridor water outlet of the tertiary centrifugal corridor (22) in the second centrifugal purification area, then enters the corridor water inlet of the primary centrifugal corridor (20) in the second centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor (21) in the second centrifugal purification area, and finally enters the water distribution area (28) from the corridor water outlet of the primary centrifugal corridor (20) in the second centrifugal purification area; When the particle density in the raw water is stable, select operation mode two: The raw water or the water purified by the flocculant enters the corridor water inlet of the primary centrifugal corridor (20) in the second centrifugal purification area from the corridor water outlet of the primary centrifugal corridor (20) in the first centrifugal purification area, then enters the corridor water inlet of the secondary centrifugal corridor (21) in the second centrifugal purification area from the corridor water outlet of the primary centrifugal corridor (20) in the second centrifugal purification area, then enters the corridor water inlet of the secondary centrifugal corridor (21) in the first centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor (21) in the second centrifugal purification area, then enters the corridor water inlet of the tertiary centrifugal corridor (22) in the first centrifugal purification area from the corridor water outlet of the secondary centrifugal corridor (21) in the first centrifugal purification area, then enters the corridor water inlet of the tertiary centrifugal corridor (22) in the second centrifugal purification area from the corridor water outlet of the tertiary centrifugal corridor (22) in the first centrifugal purification area, and finally enters the water distribution area (28) from the corridor water outlet of the tertiary centrifugal corridor (22) in the second centrifugal purification area; IV. The water entering the water distribution area (28) is evenly distributed by the water distribution partition plate (30) and then enters the stable flow area (27). After being stabilized in the stable flow area (27), it passes through the first filter layer (34), the second filter layer (35), and the third filter layer (36) for multi-stage filtration and purification in sequence and then enters the clear water tank (26). When the clear water outlet valve (32) is opened, the clear water can flow out from the clear water outlet pipe (31).

7. The operating method of an efficient rural drinking water treatment device according to claim 6, characterized in that: When backwashing is required, close the raw water inlet valve (2), close the three-way control valve (7), and stop the purification process; close the four-way control valve (17) to stop the water flow in all directions; close the clear water outlet valve (32), open the sludge discharge valve (25), and start the backwashing process. First, after emptying the sludge in the sludge collection area (29) and each centrifugal corridor in the first and second centrifugal purification areas, the clear water in the clear water tank (26) flows reversely, flushing the third filter layer (36), the second filter layer (35), and the first filter layer (34) in sequence, flushing the stable flow area (27) and the water distribution partition plate (30), and flushing each corridor in the centrifugal purification area until all the muddy water is drained. Then close the sludge discharge valve (25) to complete the backwashing process.

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