Novel seawater taking structure and integrated water taking pump room

Abstract

The novel seawater taking structure comprises a water taking pump and a water taking head, the water taking head comprises an outer frame made of a metal material and a filter element plate made of a non-metal material, a plurality of water taking openings are formed in the surface of the outer frame of the water taking head, and the filter element plate is installed at the water taking openings of the outer frame. The water taking head is fixedly installed on the outer wall of the pump room structure or connected with a water taking pump in the pump room structure through a water taking pipe, the soft seabed foundation is replaced by the composite foundation below the pump room structure, and the structure of a gravity type structure on the soft seabed foundation is achieved. According to the innovative water taking process scheme, a structure integrating the water taking function, the flow stabilizing function and the pump station function is provided, the tedious grating design is avoided, the process flow is shortened, the occupied area is reduced, the functions are highly concentrated, the overall investment cost is reduced, and case support and theoretical support are provided for further optimization design of similar projects.

Description

Technical Field

[0001] The invention relates to the technical field of seawater intake engineering, and in particular to a novel seawater intake structure and an integrated water intake pump house. Background Art

[0002] In conventional seawater intake projects, water intake methods include coastal water intake, seabed water intake, tidal water intake, etc. The main water intake methods are as follows:

[0003] (1) Coastal water intake: the water intake pump house is directly arranged on the coast or in front of the wharf; or there is a water diversion open channel, water diversion culvert or water diversion tunnel on the coast, and the water intake pump house is arranged at the end of the diversion channel, ditch or tunnel. This water intake method is suitable for steep coasts with large slopes, deep sea water at the water intake or deep water areas close to the coast; low sand content in seawater and no serious siltation; there are harbors and wharfs available for use; the rock properties of the coastline rocks are good and there are conditions for tunneling.

[0004] (2) Seabed water intake: the water intake pump house is built on the coast, and water is drawn into the sea through a gravity water pipe. This water intake method is suitable for when the beach surface is flat, the low tide level of the sea area is far from the coast, the bay conditions are bad, such as strong winds, high waves, severe drift ice, and the sediment content of the seawater near the coast is high. In order to obtain sufficient seawater and good water quality, the water intake is arranged in a deep sea area far from the coast, with sufficient water depth and outside the wave-breaking zone.

[0005] (3) Tidal water intake: that is, a water storage tank with a regulating capacity is built in the sea area. Through the change of tides, water is introduced into the water storage tank at high tide and water is taken from the water storage tank at low tide. The water intake pump house is built on the coast. This water intake method is suitable for situations where the coast is relatively flat, the deep water area is far from the shore, and there are terrain conditions for building a water storage tank on the shore.

[0006] However, the above conventional water intake forms are restricted by offshore structures and cannot closely arrange the water intake head and the water intake pump room to achieve the requirement of saving building space. The innovative water intake process scheme proposed in this application will undoubtedly provide case support and theoretical support for further optimization design of similar projects. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a novel seawater intake structure and an integrated water intake pump house.

[0008] The present invention is achieved through the following technical solutions:

[0009] A novel seawater intake structure includes a water intake pump and a water intake head connected to the water intake pump, the water intake head includes an outer frame made of metal and a filter core plate made of non-metallic material, a plurality of water intake ports are arranged on the surface of the outer frame of the water intake head, and the filter core plate is installed at the water intake port of the outer frame.

[0010] According to the above technical solution, preferably, the filter core plate is detachably connected to the outer frame. The water inlet and the filter core plate are rectangular structures, and a card slot is provided at the water inlet of the outer frame, and the card slot is symmetrically arranged on both sides of the water inlet, and the two sides of the filter core plate are slidably connected to the card slot.

[0011] According to the above technical solution, preferably, the outer frame of the water intake head is a hexahedral structure, and 9 filter plates are arranged on each side.

[0012] According to the above technical solution, preferably, a plurality of water intake windows are arranged on the filter element plate, the filtering accuracy of the water intake windows is 9 mm in diameter, and the flow rate is controlled within 0.1 m / s.

[0013] According to the above technical solution, preferably, it also includes a backwashing system connected to the water intake head, and the backwashing system includes an air compressor and an air storage tank, which are connected to the water intake head through a pipeline.

[0014] The present application also discloses an integrated water intake pump room, which is based on the above-mentioned new seawater intake structure, including a pump room structure and a composite foundation for supporting the pump room structure. The water intake head is fixedly installed on the outer wall of the pump room structure, or the water intake head is connected to the water intake pump in the pump room structure through a water intake pipe.

[0015] According to the above technical solution, preferably, the composite foundation includes a riprap base bed, thick film bag concrete, a thick crushed stone cushion layer, and a thick medium-coarse sand cushion layer, preferably but not limited to a 10-100kg riprap base bed, a 300mm thick film bag concrete, a 300mm thick crushed stone cushion layer, and a 1000mm thick medium-coarse sand cushion layer, and further includes PHC piles located thereunder to provide vertical loads for the overall structure.

[0016] The beneficial effects of the present invention are:

[0017] The present invention provides a water intake head with high filtering accuracy and backwashing capability, and a gravity-type structure on a soft seabed foundation using a submarine composite foundation. Through optimized design, the patented new water intake method can reduce environmental pollution. The water intake system generally has a high filtering and purification capacity, and can effectively remove impurities, salts, and microorganisms in seawater, thereby reducing pollution to the environment.

[0018] At the same time, the patented new water intake method can improve production efficiency, and its water intake system can achieve continuous and stable water supply to meet the needs of industrial production or residents' lives. For example, in some coastal areas, the patented new water intake system can provide a large amount of desalinated water for industrial parks, meet the production needs of enterprises, and improve production efficiency.

[0019] In addition, this patented new water extraction method can reduce operating costs. Its system can reduce manual operation and maintenance costs through technical means such as automated control and remote monitoring, and has high application and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the water intake head of the present invention.

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the filter core plate and the outer frame of the present invention.

[0022] Figure 3 It is a schematic diagram of the connection relationship between the filter element plate and the outer frame of the present invention.

[0023] Figure 4 It is a connection schematic diagram of the backwash system of the present invention.

[0024] Figure 5 It is a schematic diagram of the cutaway structure of the pump house structure and the composite foundation of the present invention.

[0025] In the figure: 1. water intake head; 2. filter plate; 3. outer frame; 4. slot; 5. air storage tank; 6. air compressor; 7. pump room structure; 8. riprap base bed; 9. PHC pile; 10. thick film bag concrete; 11. thick crushed stone cushion layer; 12. thick medium-coarse sand cushion layer. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and the best embodiment. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the invention.

[0027] In the description of the invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0028] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example 1: As shown in the figure, the present application also discloses a novel seawater intake structure, including a water intake pump and a water intake head 1 connected to the water intake pump, wherein the water intake head 1 includes an outer frame 3 made of metal and a filter element plate 2 made of non-metallic material. In this example, the water intake head 1 preferably but not limited to adopts a material configuration of a duplex stainless steel frame + a non-metallic filter element that prevents biological attachment, to ensure that corrosion and biological attachment will not occur in a seawater environment for a long time.

[0030] The surface of the outer frame 3 of the water intake head 1 is provided with a plurality of water intake ports, and the filter core plate 2 is installed at the water intake port of the outer frame 3. The filter core plate 2 is detachably connected to the outer frame 3, and the replacement of the spare filter core plate 2 can be achieved by plugging, bolting, and other methods. In the later operation and maintenance, if any filter core plate 2 is found to be blocked, the blocked filter core plate 2 can be directly pulled out and replaced with a spare filter core plate 2, and the replacement adopts a spot check method, which is more convenient for underwater maintenance.

[0031] Preferably, the outer frame 3 of the water intake head 1 in this example is a hexahedral structure, 9 filter plates 2 are arranged on each side, the water intake port and the filter plate 2 are rectangular structures, and a card slot 4 is arranged at the water intake port of the outer frame 3, and the card slot 4 is symmetrically arranged on both sides of the water intake port, and the two sides of the filter plate 2 are tightly connected to the card slot 4 by sliding. A plurality of water intake windows are arranged on the filter plate 2, and the filtration accuracy of the water intake window is 9mm in diameter, and the flow rate is controlled within 0.1m / s. The filtration efficiency is high, and garbage larger than the aperture can be effectively intercepted, and the interception efficiency of fibrous garbage is also high. The water intake head 1 is a polyhedron in shape and small in size. It is mainly composed of a duplex stainless steel frame and a non-metallic filter plate 2 that prevents biological attachment. The filter plate 2 is composed of multiple small plates. The insertion and withdrawal function can be achieved through the slots 4 on the outer frame 3 of the water intake head 1. Each small plate can be disassembled independently. During maintenance, only a single diver is required to replace a certain filter plate 2 that needs to be repaired without taking the entire water intake head out for maintenance on shore. The maintenance is simple, basically does not affect water intake, and greatly reduces the subsequent operation and maintenance costs.

[0032] In addition, the novel seawater intake structure disclosed in this example also includes a backwashing system connected to the water intake head 1, and the backwashing system includes an air compressor 6 and an air storage tank 5, which are connected to the water intake head 1 through a pipeline. The water intake head 1 is backwashed at fixed time intervals to form a strong backwashing water flow that is evenly distributed and flows from the inside to the outside, which quickly removes the garbage deposited on the surface of the filter element, and under the action of the ocean current, the garbage is taken downstream, achieving the effect of efficient backwashing and preventing the garbage from leaving the seawater, isolating the garbage and pollutants in the water, and no additional garbage disposal costs are required.

[0033] Embodiment 2: As shown in the figure, the present application also discloses an integrated water intake pump room, which is based on the above-mentioned new type of seawater intake structure, including a pump room structure 7 and a composite foundation for supporting the pump room structure 7. The water intake head 1 is fixedly installed on the outer wall of the pump room structure 7, or the water intake head 1 is connected to the water intake pump in the pump room structure 7 through a water intake pipe. The water intake pump in the pump room absorbs water to generate a seawater level difference inside and outside the pump room, providing water flow power to the water intake head 1, and filtering the offshore seawater into the water absorption chamber in the pump room.

[0034] In this example, the pump house structure 7 adopts a circular + square layout. The circular layout of the water-facing surface increases the distance between the water intake heads and saves the materials used for the structure. In addition, the circular layout can reduce the force of waves and water flow on the structure, which has more favorable water conservancy conditions. The square provides a water inlet channel space for the water pump to inlet water. At the same time, the on-site assembly method is not adopted. The irregular structure is accurately designed and calculated according to the drawings, prefabricated by the prefabrication plant, and then directly transported to the project location by semi-submersible barges.

[0035] The composite foundation includes a riprap base bed 8, thick film bag concrete 10, thick crushed stone cushion layer 11, thick medium coarse sand cushion layer 12 and PHC piles 9, and the preferred parameters include but are not limited to 10-100kg riprap base bed 8, 300mm thick film bag concrete 10, 300mm thick crushed stone cushion layer 11, and 1000mm thick medium coarse sand cushion layer 12. The riprap base bed 8, thick film bag concrete 10, thick crushed stone cushion layer 11, thick medium coarse sand cushion layer 12, and thick medium coarse sand cushion layer 12 replace the soft seabed foundation and provide lateral friction for the main structure to ensure that no horizontal displacement occurs, and the PHC piles 9 provide vertical loads for the overall structure to ensure that the settlement of the structure meets the design requirements.

[0036] The composite foundation is stacked layer by layer, from small to large, and finally protected by riprap to increase its stability on the seabed and ensure that it is not washed away by the ocean. The structure is directly located on the riprap after stability calculation. After the lateral force is accurately calculated, the friction generated by its own weight and the riprap ensures that no displacement occurs.

[0037] This application discloses a structure integrating water intake, flow stabilization and pump station functions, which changes the traditional water intake mode. The traditional water intake mode usually requires the addition of cumbersome grid filtering measures, which greatly increases the complexity of the process and the floor space occupied. The use of this water intake mode can avoid cumbersome grid design, shorten the process flow, reduce the floor space occupied, highly concentrate functions, and reduce the overall investment cost.

[0038] The technical effects of this application are preferably but not limited to:

[0039] (1) Small footprint, simple structure, and long service life: The main pump station of this patented water intake form occupies a smaller area than the conventional water intake head. Compared with the conventional coarse screen + decontamination machine + filter combination water intake head, the new water intake head adopts a finished water intake head, and the frame is made of duplex stainless steel. The filter element is made of non-metallic material, which will not cause corrosion and biological attachment. The system is designed to have a life of 30 years.

[0040] (2) Easy maintenance and low cost: Conventional water intake heads are complicated to maintain, and the garbage trapped by the grilles and grids needs to be regularly removed. Once the grilles and grids are damaged in extreme cases, they need to be removed and replaced as a whole, affecting water intake. There are moving parts underwater, and the maintenance cost is high. However, the new water intake head of this patent has no moving parts in the water, and maintenance is simple. In extreme cases, if it is damaged, only a single diver is required to complete the underwater replacement operation, and there is no need to remove the water intake head as a whole, and there is no need to remove the water intake head as a whole and take it ashore for maintenance. It basically does not affect water intake. There are no moving parts underwater, and the maintenance cost is low.

[0041] (3) High filtration efficiency: The conventional water intake form can effectively intercept garbage larger than the aperture, but the interception efficiency of fibrous garbage is low, and it is easy to hang on the grille and get tangled on the back, which eventually leads to fibrous garbage being blocked by the garbage cleaning machine. The new water intake form of this patent can effectively intercept garbage larger than the aperture, and the interception efficiency of fibrous garbage is also high.

[0042] (4) Good backwash effect: The structural characteristics of the conventional water intake grid make it impossible to form a uniform backwash water flow on the entire filter surface. During backwashing, the compressed air is unevenly distributed, resulting in the cleaning effect of the grid facing the nozzle being much better than the grids in other areas. This patented new water intake method is based on the special structural design of a certain brand of water intake head, which can form a strong backwash water flow that is evenly distributed and flows from the inside to the outside, quickly removing the garbage deposited on the surface of the filter element, and under the action of the ocean current, carrying the garbage downstream, achieving efficient backwashing and keeping the garbage from leaving the seawater.

[0043] (5) Low waste disposal cost and environmental protection: The conventional water intake form screen cleaning machine and the waste intercepted by the grid must be separated from the water and discharged into the sea after landing, which poses an environmental risk. If it is pulled out for treatment, the corresponding waste disposal costs will be incurred. This patented new water intake form water intake system isolates the waste and pollutants in the water, without the need for additional waste disposal costs.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A new type of seawater intake structure, characterized in that: It comprises a water intake pump and a water intake head (1) connected to the water intake pump, The water intake head (1) comprises an outer frame (3) made of metal material and a filter core plate (2) made of non-metal material. The surface of the outer frame (3) of the water intake head (1) is provided with a plurality of water intake ports, and the filter core plate (2) is installed at the water intake ports of the outer frame (3).

2. A novel seawater intake structure according to claim 1, characterized in that: The filter core plate (2) is detachably connected to the outer frame (3).

3. A novel seawater intake structure according to claim 2, characterized in that: The water intake and the filter plate (2) are rectangular structures. A clamping groove (4) is provided at the water intake of the outer frame (3), and the clamping groove (4) is symmetrically arranged on both sides of the water intake, and both sides of the filter core plate (2) are slidably connected to the clamping groove (4).

4. A novel seawater intake structure according to claim 1, characterized in that: The outer frame (3) of the water intake head (1) is a hexahedral structure, with nine filter core plates (2) arranged on each side.

5. According to the novel seawater intake structure of claim 1, it is characterized in that: A plurality of water intake windows are arranged on the filter core plate (2), the filtering accuracy of the water intake windows is 9 mm in diameter, and the flow rate is controlled within 0.1 m / s.

6. The novel seawater intake structure according to any one of claims 1 to 5, characterized in that: It also includes a backwashing system connected to the water intake head (1), The backwashing system comprises an air compressor (6) and an air storage tank (5), which are connected to the water intake head (1) via a pipeline.

7. An integrated water intake pump house, based on a novel seawater intake structure according to claims 1-6, characterized in that: The invention comprises a pump room structure (7) and a composite foundation for supporting the pump room structure (7); the water intake head (1) is fixedly mounted on the outer wall of the pump room structure (7), or the water intake head (1) is connected to a water intake pump in the pump room structure (7) via a water intake pipe.

8. The integrated water intake pump house according to claim 7, characterized in that: The composite foundation comprises a riprap base bed (8), thick film bag concrete (10), a thick crushed stone cushion layer (11), and a thick medium-coarse sand cushion layer (12).

9. The integrated water intake pump house according to claim 8, characterized in that: The composite foundation also includes PHC piles (9) located below the composite foundation, which are used to provide vertical loads for the entire structure.

10. The integrated water intake pump house according to claim 9, characterized in that: The composite foundation comprises a 10-100kg riprap base bed (8), a 300mm thick film bag concrete (10), a 300mm thick crushed stone cushion layer (11), and a 1000mm thick medium-coarse sand cushion layer (12).

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