Anti-clogging device for taking seawater
By designing an inclined anti-silt cover and water inlet grille in the seawater intake device, the problem of silt in the seawater intake pipeline is solved, and the effect of effectively preventing silt and sand from entering the pipeline is achieved, reducing construction risks and costs.
Patent Information
- Application Number
- CN202421684072.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-16
AI Technical Summary
In sea areas with many silt and fluctuations, seawater intake pipes are prone to silt and silt, and the existing technology is difficult and costly to deal with.
A seawater water intake anti-silt device is designed, including a water intake horizontal pipe and a vertical pipe. The water intake port is equipped with a water inlet grille, support and anti-silt cover. The anti-silt cover is set inclined. The silt and sand and large particulate objects in the seawater are deposited on the bottom anti-silt cover under the action of gravity to avoid entering the water intake pipe.
It effectively prevents silt and sand and large-particle objects from entering the water intake pipeline, avoids pipeline silt, and reduces the risks and costs of offshore construction.
Smart Images
Figure CN222796584U_ABST
Abstract
Description
Technical Field
[0001] The utility model generally relates to the field of seawater intake equipment, and in particular to a seawater intake anti-clogging device. Background Art
[0002] The heat source of the open rack vaporizer (ORV) of LNG receiving stations at home and abroad is generally seawater, and most seawater diversion projects use pipelines to draw water from offshore water sources far from the shore to the seawater pump forebay. However, in sea areas with a lot of sediment and rising and falling tides, the sediment problem of the water source is more serious, and the sediment will be brought into the pipeline at the water intake head during the rising and falling tides, which is more likely to cause sediment blockage in the water intake pipeline. Generally, the blockage position is the vertical pipe at the water intake head and the horizontal pipe section close to the vertical pipe. In view of the large water intake flow (more than 10,000 m / h), the deep water intake position (the horizontal pipe water depth is more than 10 meters), the large size of the water intake head (about 6 meters in diameter), and the limitations of water flow velocity and working space, the handling difficulty is very large.
[0003] In the existing technology, the common treatment methods to solve the silt blockage at the water intake head and pipeline are manual diving, purging joints, forward and reverse flushing, and the use of hydraulic dredgers. However, there are many technical problems in actual operation: manual diving construction at sea is difficult, risky, and has high operating costs; purging joints and forward and reverse flushing are difficult to implement in existing projects, and their application has limitations; hydraulic dredgers are restricted by water head differences, and their operating range is limited, so they need to be combined with other methods. Utility Model Content
[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a seawater intake anti-clogging device.
[0005] In the first aspect, the utility model provides a device for preventing siltation in seawater intake, comprising a water intake transverse pipe and a water intake vertical pipe, wherein the water intake transverse pipe is fixedly connected to the water intake vertical pipe and is internally communicated with the water intake vertical pipe, a water intake port is arranged at the top of the water intake vertical pipe, and the water intake port is provided with a water inlet grille, a support member and a top anti-siltation cover in sequence from bottom to top, the top anti-siltation cover is provided with a first cover shell, the end of the first cover shell away from the support member is inclined downward, the outer side wall of the water intake port is fixedly connected with a bottom anti-siltation cover, the bottom anti-siltation cover is provided with a second cover shell, the end of the second cover shell away from the water intake port is inclined downward, a flow channel for seawater to pass through is arranged between the first cover shell and the second cover shell, and the height of the first cover shell away from the end of the support member is less than the height of the bottom of the water inlet grille.
[0006] According to the technical solution provided in the embodiment of the present application, during the water intake process, seawater flows through the flow channel, passes through the water inlet grid and enters the water intake vertical pipe. The flow direction of seawater in the flow channel is from bottom to top, and the silt and large particles in the seawater will be deposited on the bottom anti-silt cover under the action of their own gravity. Since the bottom anti-silt cover is inclined, the silt and large particles will move downward along the bottom anti-silt cover and be deposited around the bottom anti-silt cover, preventing the silt and large particles from entering the water intake transverse pipe and the water intake vertical pipe, and preventing the water intake transverse pipe and the water intake vertical pipe from being blocked. In addition, the water intake is provided with a water inlet grid, which can screen and filter the solid particles in the seawater to prevent them from entering the water intake transverse pipe and the water intake vertical pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0008] Figure 1 It is a structural schematic diagram of a seawater intake anti-clogging device according to an embodiment of the utility model. DETAILED DESCRIPTION
[0009] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.
[0010] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0011] Please refer to Figure 1 The utility model discloses a seawater intake anti-blocking device, comprising a water intake horizontal pipe 100 and a water intake vertical pipe 200, wherein the water intake horizontal pipe 100 is fixedly connected to the water intake vertical pipe 200 and is internally connected, a water intake port 210 is arranged at the top of the water intake vertical pipe 200, and a water intake grille 300, a support member 400 and a top anti-silt cover 500 are arranged at the water intake port 210 in sequence from bottom to top, the top anti-silt cover 500 is provided with a first cover shell 510, and the end of the first cover shell 510 away from the support member 400 is inclined downward, the outer side wall of the water intake port 210 is fixedly connected with a bottom anti-silt cover 600, and the bottom anti-silt cover 600 is provided with a second cover shell 610, and the end of the second cover shell 610 away from the water intake port 210 is inclined downward, a flow channel 700 for seawater to pass through is arranged between the first cover shell 510 and the second cover shell 610, and the height of the end of the first cover shell 510 away from the support member 400 is less than the height of the bottom of the water intake grille 300.
[0012] In the embodiment of the utility model, the water intake horizontal pipe 100 is fixedly connected with the water intake vertical pipe 200, which can be, but not limited to, welded and fixed to the water intake horizontal pipe 100 and the water intake vertical pipe 200. The water intake horizontal pipe 100 is connected to the inside of the water intake vertical pipe 200, and a water intake port 210 is provided on the top of the water intake vertical pipe 200. Seawater enters the water intake vertical pipe 200 through the water intake port 210, and then enters the water intake horizontal pipe 100 to complete water intake.
[0013] The water intake 210 is provided with a water inlet grille 300, a support member 400 and a top anti-silt cover 500 from bottom to top. The water inlet grille 300 is fixedly connected to the water intake 210, and the water inlet grille 300 is in communication with the water intake 210. The support member 400 is fixedly connected to the top of the water inlet grille 300, and the top anti-silt cover 500 is fixedly connected to the top of the support member 400. The top anti-silt cover 500 is provided with a first cover shell 510, and the outer side wall of the water intake 210 is fixedly connected with a bottom anti-silt cover 600, and the bottom anti-silt cover 600 is provided with a second cover shell 610, and the first cover shell 510 and the second cover shell 610 are both inclined. A flow channel 700 for seawater to pass through is provided between the first cover shell 510 and the second cover shell 610, and the height of the first cover shell 510 away from the end of the support member 400 is less than the height of the bottom of the water inlet grille 300. During the water intake process, seawater flows through the flow channel 700, passes through the water intake grid 300 and enters the water intake vertical pipe 200. The flow direction of seawater in the flow channel 700 is from bottom to top, and the silt and large particles in the seawater will be deposited on the bottom anti-silt cover 600 under the action of their own gravity. Since the bottom anti-silt cover 600 is inclined, the silt and large particles will move downward along the bottom anti-silt cover 600 and deposit around the bottom anti-silt cover 600, preventing the silt and large particles from entering the water intake horizontal pipe 100 and the water intake vertical pipe 200, and preventing the water intake horizontal pipe 100 and the water intake vertical pipe 200 from being blocked. In addition, the water intake 210 is provided with a water intake grid 300, which can screen and filter the solid particles in the seawater to prevent them from entering the water intake horizontal pipe 100 and the water intake vertical pipe 200. When the silt and large particles are deposited to a certain height, they can be desilted around the bottom anti-silt cover 600 by a desilting vessel.
[0014] It is possible but not limited to that a plurality of first support rods 800 are provided between the water intake vertical pipe 200 and the bottom anti-silt cover 600 to support the bottom anti-silt cover 600 and improve the strength of the bottom anti-silt cover 600. A plurality of second support rods 900 are provided between the top anti-silt cover 500 and the bottom anti-silt cover 600 to support the top anti-silt cover 500 and improve the strength of the top anti-silt cover 500.
[0015] Furthermore, the water intake horizontal pipe 100 is arranged in the horizontal direction, and the water intake vertical pipe 200 is arranged in the vertical direction.
[0016] In the embodiment of the utility model, the water intake vertical pipe 200 is arranged in the vertical direction so that the vertical position of the water intake 210 is as high as possible, thereby reducing the possibility of mud and large particles in the seawater entering the water intake 210.
[0017] Furthermore, a cover plate 310 is provided on the top of the water inlet grille 300 .
[0018] In the embodiment of the utility model, the cover plate 310 can close the top of the water inlet grid 300 to prevent seawater from entering from the top of the water inlet grid 300. The water inlet grid 300 is guaranteed to screen and filter the solid particles in the seawater.
[0019] Furthermore, the top anti-silt cover 500 is provided with a support plate 520 , the support plate 520 is fixedly connected to the top of the support member 400 , and the first cover shell 510 is fixedly connected to the support plate 520 .
[0020] In the embodiment of the present invention, the support plate 520 is used to connect the support member 400 and the first cover shell 510 , thereby ensuring the stability of the support for the first cover shell 510 .
[0021] Furthermore, the first cover shell 510 is configured as a frustum.
[0022] Furthermore, the second cover shell 610 is configured as a frustum.
[0023] In the embodiment of the utility model, a flow channel 700 for seawater to pass through is provided between the first cover 510 and the second cover 610, and the height of the first cover 510 away from one end of the support member 400 is less than the height of the bottom of the water inlet grille 300. During the water intake process, seawater flows through the flow channel 700, passes through the water inlet grille 300 and enters the water intake vertical pipe 200, and the flow direction of seawater in the flow channel 700 is from bottom to top. The silt and large particles in the seawater will be deposited on the bottom anti-silt cover 600 under the action of their own gravity. Since the bottom anti-silt cover 600 is inclined, the silt and large particles will move downward along the bottom anti-silt cover 600 and deposit around the bottom anti-silt cover 600, so as to prevent the silt and large particles from entering the water intake horizontal pipe 100 and the water intake vertical pipe 200, and prevent the water intake horizontal pipe 100 and the water intake vertical pipe 200 from being blocked. The second cover 610 is set as a round table, which can make the silt and large particles move downward along the second cover 610.
[0024] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.
Claims
1. A seawater intake anti-clogging device, characterized in that: It includes a water intake horizontal pipe and a water intake vertical pipe, the water intake horizontal pipe is fixedly connected to the water intake vertical pipe and is internally communicated, a water intake port is arranged on the top of the water intake vertical pipe, and the water intake port is provided with a water inlet grille, a support member and a top anti-silt cover in sequence from bottom to top, the top anti-silt cover is provided with a first cover shell, the end of the first cover shell away from the support member is inclined downward, the outer side wall of the water intake port is fixedly connected with a bottom anti-silt cover, the bottom anti-silt cover is provided with a second cover shell, the end of the second cover shell away from the water intake port is inclined downward, a flow channel for seawater to pass through is arranged between the first cover shell and the second cover shell, and the height of the first cover shell away from the support member is less than the height of the bottom of the water inlet grille.
2. The seawater intake anti-clogging device according to claim 1, characterized in that: The water intake horizontal pipe is arranged along the horizontal direction, and the water intake vertical pipe is arranged along the vertical direction.
3. The seawater intake anti-clogging device according to claim 1, characterized in that: A cover plate is arranged on the top of the water inlet grille.
4. The seawater intake anti-clogging device according to claim 1, characterized in that: The top anti-silt cover is provided with a support plate, the support plate is fixedly connected to the top of the support member, and the first cover shell is fixedly connected to the support plate.
5. The seawater intake anti-clogging device according to claim 1, characterized in that: The first cover shell is configured as a frustum.
6. The seawater intake anti-clogging device according to claim 1, characterized in that: The second cover shell is configured as a frustum.