A system for preventing clogging of a water intake pipe
By installing filter heads and basket filters in the water intake pipes and combining them with an automated backwashing system, the problem of water intake pipe blockage was solved, achieving efficient interception and automated cleaning, and improving the safety and convenience of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA STATE CONSTR HARBOR CONSTR
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-12
AI Technical Summary
Existing water intake pipeline anti-clogging systems are complex in structure, occupy a large space, are inconvenient to clean once the pipeline is blocked, and pose safety hazards.
The system employs a first filter head, a second filter head, a first basket filter, and a second basket filter for primary and secondary interception. It combines an electrical contact vacuum pressure gauge, a backwash pump, and an electric valve to achieve automated backwashing. A liquid level sensor controls the automatic replenishment of the backwash water tank.
It effectively intercepts solid particles and impurities in the water, reduces the probability of pipe blockage, improves the safety and automation of the water intake system, and simplifies the cleaning process.
Smart Images

Figure CN224345522U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water intake pipe anti-clogging systems, specifically a system for preventing water intake pipe blockage. Background Technology
[0002] When drawing water from natural water bodies, water intake pipes are prone to blockage due to factors such as solid impurities, organisms, and plants in the water. Therefore, it is necessary to consider how to prevent water intake pipe blockage and how to solve the pipe blockage problem once it occurs.
[0003] However, existing water intake pipe anti-clogging systems are often complex in structure, occupy a lot of space, and are difficult to clean underwater once a blockage occurs. They often face a variety of thorny problems when blockage occurs.
[0004] Therefore, there is an urgent need to design a system for preventing blockages in water intake pipes to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a system for preventing blockages in water intake pipes, which effectively solves the problems of existing anti-blockage systems for water intake pipes being complex in structure, occupying a large space, being inconvenient to clean underwater once the pipes are blocked, and ensuring water intake safety.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a system for preventing blockage in water intake pipes, comprising: a first filter head, the outlet end of which is connected to the inlet end of a first basket filter via a pipe;
[0007] A first water intake pump has its inlet end connected to the outlet end of the first basket filter via a pipeline; a first electrical contact vacuum pressure gauge is installed on the pipeline between the first basket filter and the first water intake pump.
[0008] A second filter head, the outlet of which is connected to the inlet of a second basket filter via a pipe;
[0009] A second water pump has its inlet end connected to the outlet end of the second basket filter via a pipe, and its outlet end connected to the outlet end of the first water pump via a pipe; a second electrical contact vacuum pressure gauge is installed on the pipeline between the second basket filter and the second water pump.
[0010] A backwash pump, the inlet of which is connected via pipes to the outlets of the first filter head and the second filter head respectively, and a first backwash electric valve and a second backwash electric valve are respectively installed on the pipes between the backwash pump and the first filter head and the second filter head; and
[0011] A backwash water tank with a liquid level sensor on top is provided. The outlet of the backwash water tank is connected to the outlet of the backwash pump through a pipe, and the inlet of the backwash water tank is connected to the outlets of the first water intake pump and the second water intake pump through a pipe. A water replenishment electric valve is provided on the pipe connecting the backwash water tank to the first water intake pump and the second water intake pump.
[0012] Preferably, both the first filter head and the second filter head are composed of a processed water intake pipe, and a number of rectangular strip-shaped filter holes extending axially are evenly opened on their outer edges in the circumferential direction.
[0013] Preferably, the number of filter holes is 8.
[0014] Preferably, the inlet ends of the first filter head and the second filter head are respectively connected to a flange blind plate.
[0015] Preferably, the pore size of both the first basket filter and the second basket filter is 20 mesh.
[0016] Preferably, the first basket filter and the second basket filter are connected to the pipeline via flanges.
[0017] Preferably, the backwash pump is welded to the pipes between the first filter head and the second filter head.
[0018] This utility model provides a system for preventing blockage in water intake pipes, which has the following beneficial effects:
[0019] 1. This system for preventing blockage in water intake pipes, through the setting of a first filter head, a second filter head, a first basket filter, and a second basket filter, can effectively intercept solid particles, impurities, and organisms in the water during the water intake process, greatly filtering out impurities in the water.
[0020] 2. This system for preventing blockage in water intake pipes, through the installation of a first electric contact vacuum pressure gauge, a second electric contact vacuum pressure gauge, a backwash pump, a first backwash electric valve, and a second backwash electric valve, can effectively realize the automated backwash function of the system, reduce the probability of pipe blockage, and improve the safety of the water intake system.
[0021] 3. This system for preventing blockage in water intake pipes achieves automated water replenishment of the backwash tank through the installation of a liquid level sensor, a backwash water tank, a first water intake pump, a second water intake pump, and a water replenishment electric valve. Attached Figure Description
[0022] Figure 1This is a schematic diagram illustrating the working principle of a system for preventing blockage in water intake pipes according to this utility model.
[0023] Figure 2 This is a schematic diagram of the structure of the first filter head and the second filter head in a system for preventing blockage of water intake pipes according to the present invention.
[0024] Figure 3 for Figure 2 Schematic diagram of the cross-section at point 1-1;
[0025] Figure 4 for Figure 2 A schematic diagram of the cross-section at point 2-2.
[0026] In the diagram: 1. First filter head; 2. First basket filter; 3. First water intake pump; 4. First electrical contact vacuum pressure gauge; 5. Second filter head; 6. Second basket filter; 7. Second water intake pump; 8. Second electrical contact vacuum pressure gauge; 9. Backwash pump; 10. First backwash electric valve; 11. Second backwash electric valve; 12. Backwash water tank; 121. Liquid level sensor; 13. Water supply electric valve; 14. Filter hole; 15. Flange blind plate. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0028] Please see Figure 1-4 This utility model provides a technical solution: a system for preventing blockage in water intake pipes, comprising:
[0029] A first filter head 1, the outlet end of which is connected to the inlet end of a first basket filter 2 via a pipe; in this embodiment, the first basket filter 2 is connected to a pipe flange, and its model is SRB100-I with a pore size of 20 mesh.
[0030] A first water intake pump 3 has its inlet end connected to the outlet end of a first basket filter 2 via a pipe; a first electrical contact vacuum pressure gauge 4 is installed on the pipe between the first basket filter 2 and the first water intake pump 3.
[0031] A second filter head 5 has its outlet end connected to the inlet end of a second basket filter 6 via a pipe. In this embodiment, the second basket filter 6 is connected to a pipe flange and is of type SRB100-I with a mesh size of 20. The first basket filter 2 and the second basket filter 6 also include an inspection port, a drain port, and a filter screen. In addition, in this embodiment, both the first filter head 1 and the second filter head 5 are composed of a processed water intake pipe, and a number of rectangular strip-shaped filter holes 14 extending axially are evenly opened along the outer edge of the water intake pipe (in this embodiment, the number of filter holes 14 is 8). The inlet ends of the first filter head 1 and the second filter head 5 are respectively connected to a flange blind plate 15 with water inlet holes, and the size and number of the water inlet holes of the flange blind plate 15 are determined according to the water intake scale.
[0032] A second water pump 7 has its inlet end connected to the outlet end of a second basket filter 6 via a pipe, and its outlet end connected to the outlet end of a first water pump 3 via a pipe; a second electrical contact vacuum pressure gauge 8 is installed on the pipeline between the second basket filter 6 and the second water pump 7.
[0033] A backwash pump 9 has its inlet end connected to the outlet ends of a first filter head 1 and a second filter head 5 via pipes. A first backwash electric valve 10 and a second backwash electric valve 11 are respectively installed on the pipes between the backwash pump 9 and the first filter head 1 and the second filter head 5. In this embodiment, the pipes between the backwash pump 9 and the first filter head 1 and the second filter head 5 are welded together.
[0034] A backwash water tank 12 with a liquid level sensor 121 on top is provided. The outlet of the backwash water tank 12 is connected to the outlet of the backwash pump 9 through a pipe, and the inlet of the backwash water tank 12 is connected to the outlet of the first water intake pump 3 and the second water intake pump 7 through a pipe. A water replenishment electric valve 13 is provided on the pipe connecting the backwash water tank 12 to the first water intake pump 3 and the second water intake pump 7.
[0035] The working principle and usage of this utility model are as follows:
[0036] First, external water flows in through the first filter head 1 and the second filter head 5. During the water intake process, the first filter head 1 and the second filter head 5 can perform primary interception of larger diameter solid particles, impurities, and organisms in the water. The water inlets of the first filter head 1 and the second filter head 5 are both connected to a flange blind plate 15 with water inlet holes. The size and number of water inlet holes are determined according to the scale of water intake. The first basket filter 2 and the second basket filter 6 can perform secondary interception of solid particles, impurities, and organisms passing through the first filter head 1 and the second filter head 5. The pore size of the first basket filter 2 and the second basket filter 6 is 20 mesh, so they can effectively intercept solid particles, impurities, and organisms with a diameter greater than 20 mesh. The primary and secondary interception can intercept most of the solid particles, impurities, and organisms in the water.
[0037] Then, when both the first filter head 1, the second filter head 5, the first basket filter 2, and the second basket filter 6 fail to function, and when the value displayed by the first electric contact vacuum pressure gauge 4 or the second electric contact vacuum pressure gauge 8 is below -0.08MPa, the backwash pump 9 is started and the first backwash electric valve 10 or the second backwash electric valve 11 is opened accordingly. Water from the backwash water tank 12 flows out from the outlet to backwash the inlet pipes of the first water intake pump 3 and the second water intake pump 7, cleaning away solid particles, impurities, and biological matter remaining in the pipes to prevent pipe blockage. The backwashing time is approximately 1 minute (adjustable). After backwashing is completed, the backwash pump 9 and the first backwash electric valve 10 or the second backwash electric valve 11 are turned off. This greatly reduces the probability of pipe blockage and also realizes the automated backwashing function of the system.
[0038] Finally, the water filtered through the first filter head 1, the second filter head 5, the first basket filter 2, and the second basket filter 6 flows out through the first water intake pump 3 and the second water intake pump 7. A portion of the outflowing water flows into the backwash water tank 12. Specifically, when the level sensor 121 detects that the liquid level in the backwash water tank 12 is lower than the minimum set value, the first water intake pump 3 and the second water intake pump 7 are started and the water replenishment electric valve 13 is opened, allowing the water flowing through the first water intake pump 3 and the second water intake pump 7 to flow into the backwash water tank 12 for replenishment. When the level sensor 121 detects that the liquid level in the backwash water tank 12 has reached the normal liquid level set value, the first water intake pump 3 and the second water intake pump 7 are turned off and the water replenishment electric valve 13 is closed. This achieves automatic water replenishment of the backwash water tank 12 of the system.
[0039] In summary, this utility model has the following advantages:
[0040] This system for preventing blockages in water intake pipes effectively filters solid particles, impurities, and organisms from the water during the intake process through the installation of a first filter head, a second filter head, a first basket filter, and a second basket filter. This significantly reduces impurities in the water. The system also features a first and second electric contact vacuum pressure gauge, a backwash pump, a first backwash electric valve, and a second backwash electric valve, enabling automated backwashing and reducing the probability of pipe blockage while improving the safety of the water intake system. Finally, the system utilizes a level sensor, a backwash water tank, a first water intake pump, a second water intake pump, and a water replenishment electric valve to automatically replenish the backwash water tank.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A system for preventing blockage in water intake pipes, characterized in that, The system includes: a first filter head, the outlet of which is connected to the inlet of a first basket filter via a pipe; A first water intake pump has its inlet end connected to the outlet end of the first basket filter via a pipeline; a first electrical contact vacuum pressure gauge is installed on the pipeline between the first basket filter and the first water intake pump. A second filter head, the outlet of which is connected to the inlet of a second basket filter via a pipe; A second water pump has its inlet end connected to the outlet end of the second basket filter via a pipe, and its outlet end connected to the outlet end of the first water pump via a pipe; a second electrical contact vacuum pressure gauge is installed on the pipeline between the second basket filter and the second water pump. A backwash pump, the inlet of which is connected via pipes to the outlets of the first filter head and the second filter head respectively, and a first backwash electric valve and a second backwash electric valve are respectively installed on the pipes between the backwash pump and the first filter head and the second filter head; and A backwash water tank with a liquid level sensor on top is provided. The outlet of the backwash water tank is connected to the outlet of the backwash pump through a pipe, and the inlet of the backwash water tank is connected to the outlets of the first water intake pump and the second water intake pump through a pipe. A water replenishment electric valve is provided on the pipe connecting the backwash water tank to the first water intake pump and the second water intake pump.
2. The system for preventing blockage in water intake pipes according to claim 1, characterized in that: Both the first filter head and the second filter head are composed of a processed water intake pipe, and a number of rectangular strip-shaped filter holes extending axially are evenly opened on their outer edges.
3. The system for preventing blockage of water intake pipes according to claim 2, characterized in that: The number of filter holes is 8.
4. The system for preventing blockage of water intake pipes according to claim 1, characterized in that: The inlet ends of the first filter head and the second filter head are respectively connected to a flange blind plate.
5. The system for preventing blockage of water intake pipes according to claim 1, characterized in that: Both the first and second basket filters have a pore size of 20 mesh.
6. The system for preventing blockage of water intake pipes according to claim 1, characterized in that: The first basket filter and the second basket filter are connected to the pipeline via flanges.
7. The system for preventing blockage of water intake pipes according to claim 1, characterized in that: The backwash pump is welded to the pipes between the first filter head and the second filter head.