Water supply pipeline with anti-blocking structure

Abstract

The utility model relates to the technical field of water supply pipelines, in particular to a water supply pipeline with an anti-blocking structure. Comprising a water supply pipeline, at least two anti-blocking assemblies are arranged on the water supply pipeline at intervals in the water flow direction, and multiple sets of flow guide fins are arranged on the inner wall, corresponding to the upstream end of each anti-blocking assembly, of the water supply pipeline at equal intervals; the anti-blocking assembly comprises an expanding settling cavity integrally arranged with the water supply pipeline, a fixing rod is arranged in the middle of a cavity body of the expanding settling cavity in the radial direction, a hinge shaft in the middle of the fixing rod is connected with two crossed connecting rods, and the upstream ends of the two connecting rods are connected to the inner wall of an expanding section of the expanding settling cavity through springs correspondingly. The downstream ends of the two connecting rods are jointly connected with the edge of the nickel-titanium filter screen, the nickel-titanium filter screen triggers pore diameter adjustment based on water flow pressure difference changes, the pore diameter of the nickel-titanium filter screen can stretch out and draw back in a self-adaptive mode between 50 micrometers and 500 micrometers, and the self-adaptive pipeline anti-blocking function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water supply pipeline technical field especially a water supply pipeline with prevent blocking structure. BACKGROUND

[0002] The water supply pipeline with prevent blocking structure is a water delivery system that actively intercepts, separates or removes impurities such as silt, algae and rust in water through special flow channel design or built-in functional components, and its core principle includes physical interception, aiming to reduce the risk of pipeline blockage, reduce maintenance frequency and prolong the service life of the pipe network, and is widely used in municipal water supply, industrial circulating water and agricultural irrigation fields.

[0003] The main defects of the existing water supply pipeline with prevent blocking structure are passive prevent blocking and insufficient dynamic adaptability, and the existing prevent blocking structure usually adopts a single prevent blocking structure, which uses a traditional filter screen to intercept impurities. SUMMARY

[0004] The utility model discloses a water supply pipeline with prevent blocking structure, which solves the problems of single prevent blocking structure, low impurity interception rate, fixed filter screen aperture and excessive pressure caused by blockage.

[0005] To solve the above technical problems, the utility model provides a water supply pipeline with prevent blocking structure, which comprises a water supply pipeline, and at least two prevent blocking components are arranged on the water supply pipeline at intervals along the water flow direction.

[0006] The prevent blocking component comprises a diameter expansion settling cavity integrally arranged with the water supply pipeline, a fixed rod is arranged in the cavity middle part of the diameter expansion settling cavity in the radial direction, the middle part of the fixed rod is connected with two cross connecting rods through a hinge shaft, the upstream end of the two connecting rods is respectively connected to the inner wall of the diameter expansion section of the diameter expansion settling cavity through a spring, and the downstream end of the two connecting rods is connected to the edge of a nickel-titanium filter screen.

[0007] Further improvement of the utility model technical scheme is that the interval distance between the two adjacent prevent blocking components is 3 to 5 times of the inner diameter of the water supply pipeline.

[0008] Further improvement of the utility model technical scheme is that each group of guide ribs comprises left-handed guide ribs and right-handed guide ribs arranged alternately, the inclination angle of the guide ribs is 45 degrees, and a continuous variable-direction spiral flow channel is formed in the water supply pipeline.

[0009] The further improvement of the technical scheme of the utility model lies in that the interval of the rotation direction switching of the two adjacent groups of flow guide ribs is 1.5 times of the inner diameter of the water supply pipeline.

[0010] The further improvement of the technical scheme of the utility model lies in that the diameter expansion settling cavity is coaxially communicated with the water supply pipeline, the maximum inner diameter of the diameter expansion settling cavity is 1.5 to 2 times of the inner diameter of the water supply pipeline, and the axial length of the diameter expansion settling cavity is 0.8 to 1.2 times of the inner diameter of the water supply pipeline.

[0011] The further improvement of the technical scheme of the utility model lies in that the two ends of the fixed rod are fixedly connected to the inner side wall of the diameter expansion settling cavity, and the axial direction of the fixed rod is coincident with the radial direction of the diameter expansion settling cavity.

[0012] The further improvement of the technical scheme of the utility model lies in that the inner wall of the water supply pipeline is circumferentially provided with an annular clamping groove at the downstream end of the two connecting rods, the cross section of the annular clamping groove is a gradually tapered arc shape, the arc degree of which is adapted to the movement track of the downstream end of the connecting rod rotating around the hinge shaft, the annular clamping groove is used for limiting the edge of the nickel-titanium filter screen and bearing the radial stress generated by the expansion and deformation of the nickel-titanium filter screen, so as to prevent the displacement or falling of the nickel-titanium filter screen.

[0013] The further improvement of the technical scheme of the utility model lies in that the nickel-titanium filter screen is woven by the nickel-titanium alloy wire with elasticity, the initial aperture of the nickel-titanium filter screen is 50μm, and the nickel-titanium filter screen can be elastically deformed based on the pressure difference change.

[0014] The further improvement of the technical scheme of the utility model lies in that the radial bottom of the diameter expansion settling cavity is provided with a detachable dirt collecting groove, the volume of the dirt collecting groove is 15% to 20% of the volume of the diameter expansion settling cavity, and the bottom of the dirt collecting groove is provided with a manual blow-down valve.

[0015] By adopting the above technical scheme, the utility model has the following beneficial effects:

[0016] 1. The water supply pipeline with the anti-blocking structure is provided with a plurality of groups of flow guide ribs in the pipeline, which is beneficial to dynamic flow disturbance; the flow guide ribs are alternately arranged in left-handed and right-handed spiral layout, forming a continuous variable-direction spiral flow channel, through the periodic switching of the centrifugal force, the impurities are forced to repeatedly hit the different sides of the pipe wall, the stable deposition path of the impurities is destroyed, and the pre-separation of coarse particles is realized.

[0017] 2. The water supply pipeline with the anti-blocking structure is provided with a diameter expansion settling cavity in the pipeline, which is beneficial to the inertial settling of the impurities; the diameter expansion settling cavity adopts a coaxial gradually expanding-tapering structure, the maximum inner diameter of which is 1.5 to 2 times of the inner diameter of the water supply pipeline; after the water flow enters the diameter expansion settling cavity, the volume of the cavity is increased, so that the flow rate is reduced, and the settling efficiency of 100 to 500μm impurity particles is greater than 90% under the cooperation of the gravity; the bottom of the settling cavity is integrated with a detachable dirt collecting groove, and the impurities can be quickly cleaned through the manual blow-down valve, so that the blow-down efficiency is improved.

[0018] 3. The water supply pipeline with the anti-blocking structure, the water supply pipeline is internally provided with the nickel-titanium filter screen, which is beneficial to triggering aperture adjustment based on water flow pressure difference change, the aperture of the nickel-titanium filter screen can be self-adaptively expanded and contracted between 50 and 500 microns, and excessive pressure caused by blockage is prevented.

[0019] 4. The water supply pipeline with the anti-blocking structure, the water supply pipeline is internally provided with two connecting rods, which assist the nickel-titanium filter screen in maintaining a normally closed state, and prolong the service life of the nickel-titanium filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0021] Figure 1 It is a whole schematic view of the water supply pipeline with the anti-blocking structure;

[0022] Figure 2 It is a half sectional view of the water supply pipeline with the anti-blocking structure;

[0023] Figure 3 It is a half sectional view of the water supply pipeline with the anti-blocking structure;

[0024] Figure 4 It is a structural schematic view of the connecting rod and the nickel-titanium filter screen of the present application;

[0025] Figure 5 It is a half sectional view of the water supply pipeline with the anti-blocking structure;

[0026] Figure 6 It is Figure 5 It is an enlarged schematic view of part A in the figure;

[0027] Figure 7 It is Figure 5 It is an enlarged schematic view of part B in the figure.

[0028] Fig. 1 is a water supply pipeline; Fig. 2 is a flow guide fin; Fig. 3 is an anti-blocking assembly; Fig. 31 is an expanded diameter settling cavity; Fig. 32 is a fixed rod; Fig. 33 is a hinged shaft; Fig. 34 is a connecting rod; Fig. 35 is a spring; Fig. 36 is a nickel-titanium filter screen; Fig. 37 is an annular clamping groove; and Fig. 38 is a sewage collecting tank. DETAILED DESCRIPTION

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The present invention will be further explained below with reference to specific embodiments.

[0033] like Figures 1-7 As shown in the figure, this embodiment provides a water supply pipe with an anti-clogging structure, including a water supply pipe 1. At least two anti-clogging components 3 are spaced apart along the water flow direction on the water supply pipe 1. The spacing between two adjacent anti-clogging components 3 is 3 to 5 times the inner diameter of the water supply pipe 1. Multiple sets of flow-guiding ribs 2 are evenly spaced on the inner wall of the water supply pipe 1 corresponding to the upstream end of each anti-clogging component 3. Each set of flow-guiding ribs 2 includes alternating left-handed and right-handed flow-guiding ribs 2, with an inclination angle of 45°, forming a continuously changing spiral flow channel within the water supply pipe 1. The rotation direction switching interval between two adjacent sets of flow-guiding ribs 2 is 1.5 times the inner diameter of the water supply pipe 1. Multiple sets of flow-guiding ribs 2 are beneficial for dynamic turbulence. The flow-guiding ribs 2 adopt an alternating left-handed and right-handed layout to form a continuously changing spiral flow channel. Through the periodic switching of centrifugal force, impurities are forced to repeatedly impact different sides of the pipe wall, disrupting their stable deposition path and achieving pre-separation of coarse particles.

[0034] like Figures 2-3As shown, in the embodiment, the anti-blocking assembly 3 comprises a diameter-expanded settling cavity 31 arranged integrally with the water supply pipeline 1, the diameter-expanded settling cavity 31 is coaxially communicated with the water supply pipeline 1, the maximum inner diameter of the diameter-expanded settling cavity 31 is 1.5 to 2 times of the inner diameter of the water supply pipeline 1, and the axial length of the diameter-expanded settling cavity 31 is 0.8 to 1.2 times of the inner diameter of the water supply pipeline 1. The diameter-expanded settling cavity 31 is beneficial to the inertial settling of impurities, the diameter-expanded settling cavity 31 adopts a coaxial gradually-expanded-gradually-contracted structure, after the water flow enters the diameter-expanded settling cavity 31, the volume is increased, which leads to a decrease in flow rate, and cooperates with the gravity to achieve a settling efficiency of 100 to 500 μm impurity particles of > 90%, a detachable sludge collecting tank 38 is arranged at the radial bottom of the diameter-expanded settling cavity 31, the volume of the sludge collecting tank 38 is 15% to 20% of the volume of the diameter-expanded settling cavity 31, and a manual blowdown valve (not shown in the figure) is arranged at the bottom of the sludge collecting tank 38, the manual blowdown valve can quickly clean the impurities and improve the blowdown efficiency.

[0035] As shown, Figures 2-6 In the embodiment, a fixed rod 32 is arranged at the middle part of the cavity of the diameter-expanded settling cavity 31 in the radial direction, both ends of the fixed rod 32 are fixedly connected to the inner side wall of the diameter-expanded settling cavity 31, and the axial direction of the fixed rod 32 coincides with the radial direction of the diameter-expanded settling cavity 31. The middle part of the fixed rod 32 is connected to two cross connecting rods 34 through a hinge shaft 33, the upstream end of each of the two connecting rods 34 is connected to the inner wall of the diameter-expanded section of the diameter-expanded settling cavity 31 through a spring 35, and the downstream end of each of the two connecting rods 34 is connected to the edge of a nickel-titanium filter screen 36. The nickel-titanium filter screen 36 triggers pore size adjustment based on the change in water flow pressure difference, and the pore size of the nickel-titanium filter screen 36 can be self-adaptively expanded and contracted between 50 and 500 μm. The nickel-titanium filter screen 36 is beneficial to triggering pore size adjustment based on the change in water flow pressure difference, and the pore size of the nickel-titanium filter screen 36 can be self-adaptively expanded and contracted between 50 and 500 μm, which prevents excessive pressure caused by blockage, the two connecting rods 34 assist the nickel-titanium filter screen 36 to maintain a normally closed state, and prolong the service life of the nickel-titanium filter screen 36; when the internal and external pressure difference of the nickel-titanium filter screen 36 is in a low pressure state of < 0.05 MPa, the nickel-titanium filter screen 36 does not deform due to the self-supporting force of the nickel-titanium filter screen 36 and the pre-tightening force of the spring 35, the connecting rods 34 are in a balanced position, and the hinge shaft 33 does not rotate; when the internal and external pressure difference of the nickel-titanium filter screen 36 is in a high pressure state of ≥ 0.05 MPa, the pore size of the nickel-titanium filter screen 36 is self-adaptively expanded, the edge of the nickel-titanium filter screen 36 pulls the connecting rods 34 to rotate, the angle of the downstream end of the two connecting rods 34 is reduced, and therefore the angle of the upstream end is also reduced, and the spring 35 is stretched to provide power for the recovery of the nickel-titanium filter screen 36; when the nickel-titanium filter screen 36 releases impurities, the internal and external pressure difference of the nickel-titanium filter screen 36 is < 0.05 MPa, the nickel-titanium filter screen 36 restores to the original state based on its own properties, and at the same time, the spring 35 is retracted to pull the upstream end of the connecting rods 34 to expand, and to drive the downstream end of the connecting rods 34 to expand, which provides power assistance for the recovery of the nickel-titanium filter screen 36 and accelerates the recovery of the nickel-titanium filter screen 36.

[0036] As shown, Figures 2-6As shown, in the embodiment, the inner wall of the water supply pipeline 1 is provided with an annular clamping groove 37 corresponding to the downstream end of the two connecting rods 34, the cross section of the annular clamping groove 37 is a tapered arc, and the radian of the tapered arc is adapted to the movement track of the downstream end of the connecting rod 34 rotating around the hinge shaft 33, the annular clamping groove 37 is used for limiting the edge of the nickel-titanium filter screen 36, bearing the radial stress generated by the elastic deformation of the nickel-titanium filter screen 36, and preventing the displacement or falling of the nickel-titanium filter screen 36. The nickel-titanium filter screen 36 is woven by elastic nickel-titanium alloy wire, the initial pore diameter of the nickel-titanium filter screen 36 is 50 microns, and the nickel-titanium filter screen 36 can generate elastic deformation based on the pressure difference change. The initial pore diameter of the nickel-titanium filter screen 36 filters impurity particles greater than 50 microns, when the nickel-titanium filter screen 36 is partially blocked, causing the pressure difference to be greater than or equal to 0.05 MPa, the nickel-titanium filter screen 36 forms a dome-shaped structure, the pore diameter is self-adaptively expanded to 500 microns, the blocked impurities are released, the impurities enter the next anti-blocking assembly 3 for continuous interception, and after the pressure difference is restored, the nickel-titanium filter screen 36 returns to the original state, the pore diameter is reduced to 50 microns, and the nickel-titanium filter screen 36 has a particle retention rate of greater than 95% for 50-100 micron impurities. The comprehensive interception efficiency is improved by nearly 50% compared with the traditional filter screen, and the impurity escape amount is less than 3%.

[0037] The working principle of the technical scheme provided by the utility model in use is as follows:

[0038] When the water flows through the water supply pipeline 1, the water first flows through the flow guide ribs 2 arranged in the upstream section, and the left-handed and right-handed flow guide ribs 2 arranged alternately force the water flow to form a periodic turning spiral flow channel, so that the coarse particle impurities are thrown to different sides of the pipe wall under the action of centrifugal force, and pre-separation is realized. Subsequently, the water flow enters the diameter expansion settling chamber 31 of the anti-blocking assembly 3, the maximum inner diameter of the chamber is 1.5 to 2 times the pipe diameter, the flow rate is reduced, and the particles are settled to the detachable dirt collecting tank 38 at the bottom under the action of gravity, and the remaining water flow containing trace impurities continues to advance to the nickel-titanium filter screen 36.

[0039] The nickel-titanium filter screen 36 is woven by nickel-titanium alloy wire with elasticity, and the initial aperture is 50 μm. The edge of the nickel-titanium filter screen 36 is fixed to the inner wall of the pipeline through the annular clamping groove 37. When the pressure difference between the inside and outside of the nickel-titanium filter screen 36 is in a low pressure state of <0.05 MPa, the nickel-titanium filter screen 36 does not deform due to the self-supporting force of the nickel-titanium filter screen 36 and the pre-tightening force of the spring 35, the connecting rod 34 is in a balanced position, and the hinge shaft 33 does not rotate. When the pressure difference between the inside and outside of the nickel-titanium filter screen 36 is in a high pressure state of ≥0.05 MPa, the aperture of the nickel-titanium filter screen 36 self-adapts to expand, the edge of the nickel-titanium filter screen 36 pulls the connecting rod 34 to rotate, the angle of the downstream end of the two connecting rods 34 decreases, so the angle of the upstream end also decreases, and the spring 35 is stretched to provide power for the recovery of the nickel-titanium filter screen 36. When the nickel-titanium filter screen 36 releases impurities, the pressure difference between the inside and outside of the nickel-titanium filter screen 36 is <0.05 MPa, the nickel-titanium filter screen 36 recovers to the original state based on its own properties, at the same time, the spring 35 retracts, pulls the upstream end of the connecting rod 34 to expand, and drives the downstream end of the connecting rod 34 to expand, which provides power assistance for the recovery of the nickel-titanium filter screen 36, and speeds up the recovery of the nickel-titanium filter screen 36 to complete the self-cleaning cycle.

[0040] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A water supply pipe with an anti-clogging structure, characterized in that, The water supply pipeline (1) is provided with at least two anti-blocking assemblies (3) at intervals in the water flow direction, and a plurality of groups of guide ribs (2) are arranged at equal intervals on the inner wall of the water supply pipeline (1) corresponding to the upstream end of each anti-blocking assembly (3); The anti-blocking assembly (3) comprises a diameter-expanded settling cavity (31) integrally arranged with the water supply pipeline (1), a fixed rod (32) is arranged in the middle of the cavity of the diameter-expanded settling cavity (31) in the radial direction, the middle part of the fixed rod (32) is connected to two cross connecting rods (34) through a hinge shaft (33), the upstream end of each connecting rod (34) is connected to the inner wall of the diameter-expanded section of the diameter-expanded settling cavity (31) through a spring (35), and the downstream end of each connecting rod (34) is connected to the edge of a nickel-titanium filter screen (36). The nickel-titanium filter screen (36) bends based on the impact of water flow, so that the pore size of the nickel-titanium filter screen (36) changes by 50-500 μm.

2. The water supply pipe with anti-blocking structure according to claim 1, characterized in that, The interval distance between the two adjacent anti-blocking assemblies (3) is 3-5 times the inner diameter of the water supply pipeline (1).

3. The water supply pipe with anti-blocking structure according to claim 1, characterized in that, Each group of guide ribs (2) comprises left-handed guide ribs (2) and right-handed guide ribs (2) arranged alternately, the inclination angle of the guide ribs (2) is 45°, and a continuous variable-direction spiral flow channel is formed in the water supply pipeline (1).

4. The water supply pipe with anti-blocking structure according to claim 1, characterized in that, The rotation direction switching interval of the two adjacent groups of guide ribs (2) is 1.5 times the inner diameter of the water supply pipeline (1).

5. The water supply pipe with anti-blocking structure according to claim 1, characterized in that, The diameter-expanded settling cavity (31) is coaxially communicated with the water supply pipeline (1), the maximum inner diameter of the diameter-expanded settling cavity (31) is 1.5-2 times the inner diameter of the water supply pipeline (1), and the axial length of the diameter-expanded settling cavity (31) is 0.8-1.2 times the inner diameter of the water supply pipeline (1).

6. The water supply pipe with anti-blocking structure according to claim 1, characterized in that, The two ends of the fixed rod (32) are fixedly connected to the inner side wall of the diameter-expanded settling cavity (31), and the axial direction of the fixed rod (32) coincides with the radial direction of the diameter-expanded settling cavity (31).

7. The water supply pipe with anti-blocking structure according to claim 1, characterized in that, The inner wall of the water supply pipeline (1) is provided with an annular clamping groove (37) corresponding to the downstream end of the two connecting rods (34) in the circumferential direction, the cross section of the annular clamping groove (37) is a tapered arc, the arc is adapted to the movement track of the downstream end of the connecting rod (34) rotating around the hinge shaft (33), the annular clamping groove (37) is used for limiting the edge of the nickel-titanium filter screen (36) and bearing the radial stress generated by the elastic deformation of the nickel-titanium filter screen (36), so as to prevent the displacement or falling of the nickel-titanium filter screen (36).

8. The water supply pipe with anti-blocking structure according to claim 1, characterized in that, The nickel-titanium filter screen (36) is woven by a nickel-titanium alloy wire with elasticity, the initial pore size of the nickel-titanium filter screen (36) is 50 μm, and the nickel-titanium filter screen (36) can elastically deform based on the pressure difference change.

9. The water supply pipe with anti-blocking structure according to claim 1, characterized in that, A detachable dirt collecting groove (38) is arranged at the radial bottom of the diameter-expanded settling cavity (31), the volume of the dirt collecting groove (38) is 15%-20% of the volume of the diameter-expanded settling cavity (31), and a manual dirt discharge valve is arranged at the bottom of the dirt collecting groove (38).

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