Pipeline anti-blocking device for recycling waste heat of circulating water

By installing filter components, anti-scaling components, and flow guiding components in the circulating water waste heat recovery pipeline, the problem of pipeline blockage is solved, and effective impurity filtration, scale prevention, and water flow guidance are achieved, thereby improving the waste heat recovery efficiency.

CN224258411UActive Publication Date: 2026-05-19SHIJIAZHUANG GRAN DISTRIBUTION ENERGY TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIJIAZHUANG GRAN DISTRIBUTION ENERGY TECH
Filing Date
2025-05-20
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The waste heat recovery pipeline of circulating water is prone to clogging. Existing devices cannot effectively solve the problems of impurity filtration, scale prevention and water flow guidance, which affects the operation of the system.

Method used

Design a pipe anti-clogging device, comprising a filter component, an anti-scaling component, and a flow guiding component, which are used to filter impurities, prevent scale formation, and ensure uniform water flow, respectively. The component consists of a filter screen, an anti-scaling block, and a flow guiding cylinder, and is combined with a flow straightening plate to achieve multi-layer filtration and flow guiding.

Benefits of technology

It effectively prevents pipe blockage, improves waste heat recovery efficiency, filters impurities through multi-layer filter screens, prevents scale formation, and reduces sedimentation through flow guiding components, ensuring uniform water flow.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a circulating water waste heat recovery pipeline anti-blocking device which comprises a tubular shell installed on a circulating water waste heat recovery pipeline, and a filtering assembly, an anti-scaling assembly, a rectifying pore plate and a flow guide assembly are sequentially arranged in the tubular shell in the water flow direction. The filter assembly comprises a mounting frame which is detachably mounted in the tubular shell, and a filter screen is arranged in the mounting frame; the anti-scaling assembly comprises a plurality of anti-scaling blocks arranged on the inner wall of the tubular shell; the flow guide assembly comprises a flow guide cylinder fixedly arranged on the inner wall of the tubular shell, and the interior of the flow guide cylinder is a flow guide channel with the caliber gradually reduced in a segmented mode in the water flow direction. Through the arrangement of the filtering assembly, the anti-scaling assembly, the rectifying pore plate and the flow guide assembly, large-particle impurities in circulating water can be filtered out firstly, then ions possibly forming scale are treated through the anti-scaling assembly, finally, water flow evenly flows and accelerates through the flow guide assembly, deposition is reduced, pipeline blockage can be effectively prevented, and the service life of the circulating water is prolonged. And the waste heat recovery efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of circulating water waste heat recovery technology, specifically to a pipe anti-clogging device for circulating water waste heat recovery. Background Technology

[0002] In circulating water waste heat recovery systems, impurities, algae, and scale easily accumulate in the pipes, leading to blockages, reduced waste heat recovery efficiency, and even affecting the normal operation of the entire system. Traditional pipe anti-clogging devices often have limited functionality and cannot effectively solve problems such as impurity filtration, scale prevention, and water flow guidance simultaneously. Therefore, a more effective pipe anti-clogging device is needed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a pipe anti-clogging device for circulating water waste heat recovery, so as to solve the problem of easy clogging of circulating water waste heat recovery pipes in the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A pipe anti-clogging device for circulating water waste heat recovery includes a tubular shell installed on the circulating water waste heat recovery pipe. Inside the tubular shell, along the water flow direction, are sequentially arranged a filter assembly, an anti-scaling assembly, a flow rectifier plate, and a flow guiding assembly. The filter assembly includes a mounting frame detachably installed inside the tubular shell, with a filter screen installed within the mounting frame. The anti-scaling assembly includes multiple anti-scaling blocks disposed on the inner wall of the tubular shell. The flow guiding assembly includes a flow guiding cylinder fixedly disposed on the inner wall of the tubular shell, the interior of which is a flow guiding channel with a gradually decreasing diameter along the water flow direction.

[0006] Preferably, the tubular shell is provided with connecting flanges at both ends for connecting the circulating water waste heat recovery pipeline.

[0007] Preferably, the filter screen is composed of multiple layers of wire mesh with different mesh counts, and the mesh count of the filter screen increases sequentially along the water flow direction.

[0008] Preferably, the anti-scaling block is a neodymium iron boron permanent magnet, and multiple anti-scaling blocks are staggered and evenly arranged along the inner wall of the tubular shell.

[0009] Preferably, the rectifier plate is uniformly provided with grids or honeycomb-shaped through holes for pre-regulating the water flow.

[0010] Preferably, the inlet of the guide tube is a convex tubular shell with a rounded transition to avoid abrupt changes in water flow that could generate eddies.

[0011] Preferably, the tubular housing is provided with a pressure gauge for monitoring pressure.

[0012] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0013] This invention, through the design of a filter assembly, an anti-scaling assembly, a flow rectifier plate, and a flow guiding assembly, enables the circulating water to first filter out large particulate impurities, then treat ions that may form scale through the anti-scaling assembly, and finally use the flow guiding assembly to make the water flow evenly and accelerate, reducing sedimentation, effectively preventing pipe blockage, and improving waste heat recovery efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] The components are: 1. Tubular shell, 2. Filter assembly, 21. Mounting frame, 22. Filter screen, 3. Anti-scaling assembly, 31. Anti-scaling block, 4. Orifice plate, 5. Flow guiding assembly, 51. Flow guiding cylinder, 52. Flow guiding channel, 6. Connecting flange, 7. Pressure gauge. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] A pipe anti-clogging device for waste heat recovery of circulating water, combined with Figure 1 As shown, the device includes a tubular housing 1 installed on a circulating water waste heat recovery pipeline. Inside the tubular housing 1, along the water flow direction, there are sequentially arranged a filter assembly 2, an anti-scaling assembly 3, a flow rectifier plate 4, and a flow guide assembly 5. The filter assembly 2 is used to filter impurities of different sizes in the circulating water; the anti-scaling assembly 3 is used to prevent scale buildup; the flow rectifier plate 4 is used to pre-regulate the water flow; and the flow guide assembly 5 is used to reduce the deposition of impurities and scale.

[0018] The tubular shell 1 is provided with connecting flanges 6 at both ends. The connecting flanges 6 are used to connect the circulating water waste heat recovery pipeline, which facilitates installation and disassembly.

[0019] The filter assembly 2 includes a mounting frame 21 that can be detachably installed inside the tubular housing 1. A filter screen 22 is disposed in the mounting frame 21. The filter screen 22 is composed of multiple layers of wire mesh with different mesh counts, and the mesh count of the filter screen 22 increases sequentially along the water flow direction, which can effectively filter impurities of different sizes. At the same time, the filter assembly 2 is detachable, which is convenient for cleaning and replacement.

[0020] The anti-scaling component 3 includes multiple anti-scaling blocks 31 disposed on the inner wall of the tubular shell 1. The multiple anti-scaling blocks 31 are staggered and uniformly disposed along the inner wall of the tubular shell 1, and the anti-scaling blocks 31 are neodymium iron boron permanent magnets, which can magnetize calcium and magnesium ions in water, interfere with the normal growth and aggregation of scale crystals, thereby achieving the effect of anti-scaling.

[0021] A flow-rectifying orifice plate 4 is positioned before the inlet of the flow guide tube 51. The orifice plate 4 has uniformly distributed grid or honeycomb-shaped through-holes for pre-regulating the water flow. The flow guide assembly 5 includes a flow guide tube 51 fixedly mounted on the inner wall of the tubular shell 1. The outer wall of the flow guide tube 51 is cylindrical, adaptable to the inner wall of the tubular shell 1. The interior of the flow guide tube 51 consists of flow guide channels 52 with gradually narrowing diameters along the water flow direction. The inlet of the flow guide tube 51 has a convex transition fillet protruding towards the tubular shell 1, which is used to prevent abrupt changes in water flow that could generate eddies. Through the design of the flow-rectifying orifice plate 4 and the flow guide assembly 5, the water flow can be guided to flow uniformly, reducing the generation of eddies. Simultaneously, the gradually narrowing flow guide channels 52 can increase the water flow velocity, further reducing the deposition of impurities and scale.

[0022] A pressure gauge 7 is installed on the tubular housing 1, and the pressure gauge 7 is located near the inlet of the tubular housing 1 to monitor the pressure. When the pressure value monitored by the pressure gauge 7 is too high, the device can be removed for cleaning, and the filter assembly 2 can also be removed separately for cleaning.

[0023] When this utility model is in use, the circulating water flows in the circulating water waste heat recovery pipeline. First, it passes through the filter assembly 2 inside the tubular shell 1, where the filter screen 22 filters impurities in the water. Then, the water flows through the anti-scaling assembly 3, where the anti-scaling block 31 magnetizes the water to prevent scale formation. Finally, the water flows through the rectifier plate 4 and the guide assembly 5. The rectifier plate 4 and the guide cylinder 51 guide the water flow evenly and accelerate it, reducing the deposition of impurities and scale, thereby effectively preventing pipeline blockage and improving the efficiency of circulating water waste heat recovery.

Claims

1. A pipe anti-clogging device for circulating water waste heat recovery, comprising a tubular shell (1) installed on the circulating water waste heat recovery pipe, characterized in that: The tubular shell (1) is provided with a filter assembly (2), an anti-scaling assembly (3), a flow straightening plate (4), and a flow guiding assembly (5) in sequence along the water flow direction. The filter assembly (2) includes a mounting frame (21) that can be detachably installed in the tubular shell (1), and a filter screen (22) is provided in the mounting frame (21). The anti-scaling assembly (3) includes a plurality of anti-scaling blocks (31) provided on the inner wall of the tubular shell (1). The flow guiding assembly (5) includes a flow guiding cylinder (51) fixedly installed on the inner wall of the tubular shell (1), and the interior of the flow guiding cylinder (51) is a flow guiding channel (52) with a gradually narrowing diameter along the water flow direction.

2. The anti-clogging device for a pipeline used in waste heat recovery of circulating water according to claim 1, characterized in that: The tubular shell (1) is provided with connecting flanges (6) at both ends for connecting the circulating water waste heat recovery pipeline.

3. The anti-clogging device for a circulating water waste heat recovery pipeline according to claim 1, characterized in that: The filter screen (22) is made of multiple layers of wire mesh with different mesh counts, and the mesh count of the filter screen (22) increases sequentially along the water flow direction.

4. The anti-clogging device for a circulating water waste heat recovery pipeline according to claim 1, characterized in that: The anti-scaling block (31) is a neodymium iron boron permanent magnet, and multiple anti-scaling blocks (31) are staggered and evenly arranged along the inner wall of the tubular shell (1).

5. The anti-clogging device for a circulating water waste heat recovery pipeline according to claim 1, characterized in that: The rectifier plate (4) is uniformly provided with grids or honeycomb-shaped through holes for pre-regulating the water flow.

6. The anti-clogging device for a pipeline used in waste heat recovery of circulating water according to claim 1, characterized in that: The inlet of the guide tube (51) is a convex tubular shell (1) to avoid the transition rounded corner of the water flow to avoid the generation of eddies due to sudden changes in water flow.

7. The anti-clogging device for a circulating water waste heat recovery pipeline according to claim 1, characterized in that: A pressure gauge (7) for monitoring pressure is provided on the tubular housing (1).