CN111576551A - Water intake device with cleaning pipe in filter material - Google Patents

Abstract

The invention relates to a water intake device with cleaning pipes in filter materials, wherein an inner hole (17) is drilled in the pipe wall of an inner pipe (4) of the device, 2 layers of corrosion-resistant inner pipe filter screens (11) are wound outside the inner pipe (4), an outer pipe (3) is sleeved outside the inner pipe (4), an outer hole (18) is drilled in the outer pipe (3), 2 layers of outer pipe filter screens (12) are lined in the outer pipe (3), filter materials (1) are added between the inner pipe filter screens (11) and the outer pipe filter screens (12) between the inner pipe (4) and the outer pipe (3), an annular main pipe (10) is arranged on a top sealing cover (5), a plurality of jet cleaning pipes (2) are arranged in the filter materials (1) between the outer pipe (3) and the inner pipe (4), the jet cleaning pipes (2) are connected to the annular main pipe (10) on the top sealing cover (5), and the annular main pipe. The invention is simple and practical, has strong adaptability, and is very necessary to take water from turbid seawater.

Description

Water intake device with cleaning pipe in filter material

Technical Field

The invention belongs to the technical field of water supply and drainage, and particularly relates to a water taking device with a cleaning pipe arranged in a filter material, which can be applied to occasions needing to filter taken water, particularly to a coastal seawater taking device. The method can also be applied to water taking of turbid water sources under similar conditions.

Background

At present, with the rapid development of economy and the rapid improvement of living standard, the water consumption of industry, agriculture, commerce and living is continuously increased, and water resources are in short supply day by day. The direct use of seawater and more seawater desalination projects are used to supplement the shortage of fresh water. In these projects, because the intake is influenced by the intake position, the ocean current flow field, the seabed siltation, the wind wave and other factors, the seawater often becomes very turbid, and a large amount of suspended matters exist in the seawater, and if the raw water is used without being treated, the equipment will be silted up, the internal pressure of the equipment is increased, the service life of mechanical equipment is shortened, the maintenance frequency is increased and other adverse factors are caused. Therefore, the seawater is very necessary to be subjected to primary physical filtration, so that the difficulty of subsequent treatment can be reduced, the failure rate of equipment is reduced, the guarantee rate is improved, and energy is saved. Therefore, it is necessary to pretreat seawater. Common seawater intake facilities include open-type facilities for taking water directly from the ocean and underground intake facilities. The open type water taking facility selects a coast with less suspended matters to directly arrange a water taking port for taking water; the underground water taking facility is on a coastline with more suspended matters and comprises two major categories of water taking wells and water taking galleries, wherein each water taking well comprises a vertical well, an inclined well, a radiation water collecting well and a horizontal well; the water taking gallery system is generally built under water for 3-5 meters, the construction difficulty is high, the cost is high, a special filtering structure needs to be arranged, silting is easy, and marine organisms and microorganisms are easy to breed on the filtering system. The water taking well system generally needs a thicker sand layer or a permeable rock stratum, needs larger special drilling equipment and is difficult to implement in places without the conditions. Therefore, the invention is necessary to provide a simple, practical and adaptable device for taking water from turbid seawater, and the equipment is invented according to the requirement.

Disclosure of Invention

The invention aims to provide a device capable of realizing primary physical filtration treatment of turbid seawater, which can filter and remove particles with more than a certain particle size in the seawater, provide relatively clean seawater for subsequent treatment processes and provide good working conditions for subsequent equipment. The technical scheme adopted for realizing the invention is as follows: the utility model provides a set up water intake device of scavenge pipe in filter material, includes filter material, outer tube, inner tube, closing cap, upper hose, high-order pond, pump, collection mud ditch and mud pipe, its characterized in that: the device's pipe wall of inner tube has bored the hole, the outer 2 corrosion-resistant inner tube filter screens of outer twine of inner tube, the outer tube of outer suit of inner tube, it has the outer hole to bore on the outer tube, outer tube inside lining has 2 outer tube filter screens, add the filter material between inner tube filter screen and the outer tube filter screen between inner tube and outer tube, install bottom cover and top cover at the both ends of inner tube and outer tube and with the inner tube, outer tube and filter material are fixed, set up annular house steward on the top cover, set up many jet cleaning pipes in the filter material between outer tube and inner tube, be equipped with the jet orifice on the jet cleaning pipe, jet cleaning pipe connects on the annular house steward on the top cover, annular house steward connects the downcomer, the high-order pond is connected to the downcomer, be equipped with the solenoid valve on the downcomer and control rivers, be equipped. The outer pipe and the inner pipe are both engineering plastic pipes or corrosion-resistant stainless steel pipes with seawater corrosion resistance, the outer pipe and the inner pipe are equal in length, and the diameter of the outer pipe is larger than that of the inner pipe by 250-350 mm. The inner pipe filter screen and the outer pipe filter screen are made of corrosion-resistant polytetrafluoroethylene or carbon fiber materials, the inner pipe filter screen is 60 meshes/square inch, and the outer pipe filter screen is 30 meshes/square inch. The aperture ratio of the inner pipe is larger than 15%, the diameter of the hole is 3-5 mm, the aperture ratio of the outer pipe is larger than 20%, and the diameter of the hole is 4-6 mm. The filter material adopts medium sand or light ceramic particles with equal particle size to reduce weight. The number of the jet cleaning pipes is 4-8. The bottom of the high-level water tank is obliquely arranged, and fine particles in water settle to the bottom of the water tank and slide to the lower end under the action of gravity. Is discharged through a mud collecting ditch and a mud discharging pipe.

When the seawater filtering device is used, seawater enters the inner pipe through the filtering material and the filtering net, and suspended matters, mainly fine soil particles, with the diameter larger than the gaps of the filtering material are filtered. The water enters the inner pipe and is pumped into the high-level water pool by the water pump. With the increase of time, the particles with small particle size are retained on the filter material and the filter screen under the action of the suction force, so that the water inflow is reduced. Under this condition, open the solenoid valve on the wet return, rivers enter into the injection scavenge pipe under the action of gravity, spout through the aperture on it, because the aperture on inlet opening and the filter screen on the outer tube is greater than the inlet opening on the inner tube and the aperture on the filter screen, the granule that spun water will enter into in the filter material washes away to resume filter material filtration ability of intaking.

The invention is simple and practical, has strong adaptability and can take water from turbid seawater.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view of a portion of the structure in fig. 1A.

In the figure, 1, a filter material; 2. a jet cleaning pipe; 3. an outer tube; 4. an inner tube; 5. a capping cover; 6. a water feeding pipe; 7. a high-level water tank; 8. an electromagnetic valve; 9. a sewer pipe; 10. a ring-shaped main pipe; 11. an inner pipe filter screen; 12. an outer tube filter screen; 13. a pump; 14. sealing the bottom cover; 15. a mud collecting ditch; 16. a sludge discharge pipe 17, an inner hole 18, an outer hole 19 and an injection hole.

The specific implementation mode is as follows:

referring to the drawings, a water intake device with a cleaning pipe arranged in filter materials comprises a filter material 1, an outer pipe 3, an inner pipe 4, a top sealing cover 5, a water feeding pipe 6, a high-level water tank 7, a pump 13, a sludge collecting ditch 15 and a sludge discharge pipe 16, and is characterized in that: an inner hole 17 is drilled on the pipe wall of an inner pipe 4 of the device, 2 layers of corrosion-resistant inner pipe filter screens 11 are wound outside the inner pipe 4, an outer pipe 3 is sleeved outside the inner pipe 4, an outer hole 18 is drilled on the outer pipe 3, 2 layers of outer pipe filter screens 12 are lined inside the outer pipe 3, a filter material 1 is added between the inner pipe filter screens 11 and the outer pipe filter screens 12 between the inner pipe 4 and the outer pipe 3, a bottom sealing cover 14 and a top sealing cover 5 are additionally arranged at two ends of the inner pipe 4 and the outer pipe 3 to fix the inner pipe 4, the outer pipe 3 and the filter material 1, an annular main pipe 10 is arranged on the top sealing cover 5, a plurality of jet cleaning pipes 2 are arranged in the filter material 1 between the outer pipe 3 and the inner pipe 4, jet holes 19 are arranged on the jet cleaning pipes 2, the annular main pipe 10 on the top sealing cover 5 is connected with a sewer pipe 9, the sewer pipe 9 is connected with a high-level, a water pump 13 is connected to the upper water pipe 6 to pump water into the high-level water tank 7. The outer pipe 3 and the inner pipe are both engineering plastic pipes or corrosion-resistant stainless steel pipes with seawater corrosion resistance, the outer pipe 3 and the inner pipe 4 are equal in length, and the diameter of the outer pipe 3 is larger than that of the inner pipe 4 by 250-350 mm. The inner pipe filter screen 11 and the outer pipe filter screen 12 are made of corrosion-resistant polytetrafluoroethylene or carbon fiber materials, the inner pipe filter screen 11 is 60 meshes/square inch, and the outer pipe filter screen 12 is 30 meshes/square inch. The aperture ratio of the inner tube 4 is larger than 15%, the diameter of the hole is 3-5 mm, the aperture ratio of the outer tube 3 is larger than 20%, and the diameter of the hole is 4-6 mm. The filter material 1 adopts medium sand or light ceramic particles with equal particle size to reduce weight. The number of the jet cleaning pipes 2 is 4-8. The bottom of the high-level water tank 7 is obliquely arranged, the sludge collecting ditch 15 is positioned at a low position, and fine particles in water are precipitated at the bottom of the water tank and slide to the low end under the action of gravity. Through the sludge collecting channel 15 and discharged through the sludge discharge pipe 16.

The working process of the invention is as follows:

the water taking device is placed in seawater, and during operation, the seawater enters the inner pipe 4 through the outer pipe 3 with holes, the outer pipe filter screen 12, the filter material 1, the inner pipe filter screen 11 and the inner pipe 4 with holes, and is pumped into the high-level water tank 7 through the water pump 13. When the water pump 13 is started but water is not supplied or the water quantity is insufficient, the filter screen and the filter material are blocked, the electromagnetic valve 8 is opened, water in the high-level water tank 7 enters the annular main pipe 9 through the sewer pipe 9 and then enters the jet cleaning pipe 2, fine particles in the filter material and on the filter screen and fine particles on the outer pipe 3 with holes are washed down, and the water supply capacity of the water intake device is recovered.

If the height of the high-level water tank is not enough and the jet speed of water is too small, a pressure pump can be additionally arranged. A certain amount of water is reserved in the high-level water tank 7 for cleaning. The water in the water collecting tank 7 has fine particles, the fine particles can settle to the bottom of the tank after standing, and the inclination angle of the bottom of the tank is larger than the underwater repose angle of saturated unconsolidated sludge, so that the sludge enters the sludge collecting ditch 15 and is periodically discharged through the sludge discharge pipe 16.

Claims (8)

1. The utility model provides a set up water intake device of scavenge pipe in filter material, including filter material (1), outer tube (3), inner tube (4), capping (5), upward water pipe (6), high-order pond (7), pump (13), collection mud ditch (15) and mud pipe (16), its characterized in that: an inner hole (17) is drilled on the pipe wall of an inner pipe (4) of the device, 2 layers of corrosion-resistant inner pipe filter screens (11) are wound outside the inner pipe (4), an outer pipe (3) is sleeved outside the inner pipe (4), an outer hole (18) is drilled on the outer pipe (3), 2 layers of outer pipe filter screens (12) are lined inside the outer pipe (3), a filter material (1) is added between the inner pipe filter screen (11) and the outer pipe filter screen (12) between the inner pipe (4) and the outer pipe (3), a bottom sealing cover (14) and a top sealing cover (5) are added at two ends of the inner pipe (4) and the outer pipe (3), the inner pipe (4), the outer pipe (3) and the filter material (1) are fixed, an annular main pipe (10) is arranged on the top sealing cover (5), a plurality of jet cleaning pipes (2) are arranged in the filter material (1) between the outer pipe (3) and the inner pipe (4), jet holes (19) are arranged on the jet cleaning pipes (2), and the jet, the annular main pipe (10) is connected with a sewer pipe (9), the sewer pipe (9) is connected with a high-level water pool (7), a water pump (13) is arranged in the inner pipe (4), and the water pump (13) is connected with an upper water pipe (6) to pump water into the high-level water pool (7).

2. The water intake device with a cleaning pipe arranged in the filter material according to claim 1, characterized in that: an electromagnetic valve (8) is arranged on the water outlet pipe (9) to control water flow.

3. The water intake device with a cleaning pipe arranged in the filter material according to claim 1, characterized in that: the outer pipe (3) and the inner pipe (4) are both engineering plastic pipes or corrosion-resistant stainless steel pipes with seawater corrosion resistance, the lengths of the outer pipe (3) and the inner pipe (4) are equal, and the diameter of the outer pipe (3) is larger than that of the inner pipe (4) by 250-350 mm.

4. The water intake device with a cleaning pipe arranged in the filter material according to claim 1, characterized in that: the inner pipe filter screen (11) and the outer pipe filter screen (12) are made of corrosion-resistant polytetrafluoroethylene or carbon fiber materials, the inner pipe filter screen (11) is 60 meshes/square inch, and the outer pipe filter screen (12) is 30 meshes/square inch.

5. The water intake device with a cleaning pipe arranged in the filter material according to claim 1, characterized in that: the aperture ratio of the inner pipe (4) is larger than 15%, the diameter of the hole is 3-5 mm, the aperture ratio of the outer pipe (3) is larger than 20%, and the diameter of the hole is 4-6 mm.

6. The water intake device with a cleaning pipe arranged in the filter material according to claim 1, characterized in that: the filter material (1) adopts medium sand or light ceramic particles with equal particle size.

7. The water intake device with a cleaning pipe arranged in the filter material according to claim 1, characterized in that: the number of the jet cleaning pipes (2) is 4-8.

8. The water intake device with a cleaning pipe arranged in the filter material according to claim 1, characterized in that: the bottom of the high-level water pool (7) is obliquely arranged, and the sludge collecting ditch (15) is positioned at a low position.

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