Turbulent flow device used at inlet of centrifugal water pump pipeline

Abstract

The utility model relates to the field of centrifugal water pump pipelines, in particular to a spoiler device used at an inlet of a centrifugal water pump pipeline, which comprises a reducer pipe and a combined spoiler, a sleeve pipe is arranged on the outer side of the combined spoiler, a clamping seat is arranged on the inner wall of the reducer pipe, and the sleeve pipe is connected with the clamping seat in a clamping manner. The combined spoiler is composed of transverse rib plates and longitudinal rib plates, and the transverse rib plates and the longitudinal rib plates are distributed in a cross-shaped staggered mode. The transverse rib plates and the longitudinal rib plates form the net-shaped net plate and are installed in the reducer pipe, so that water flow is segmented when passing through, generation of vortexes is reduced, turbulent flow is achieved, the vortexes are eliminated, abrasion of the vortexes to an impeller and a shell of the centrifugal water pump is reduced, and the service life is prolonged; the transverse rib plates and the longitudinal rib plates are inserted, the combined spoiler is convenient to disassemble and assemble, the whole reducer pipe does not need to be replaced when the combined spoiler is damaged, maintenance is convenient, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal water pump pipeline field especially, a disturbance device for centrifugal water pump pipeline entrance. BACKGROUND

[0002] Cooling circulating water device is widely used in metallurgy, nonferrous, energy chemical industry, equipment manufacturing and other industrial fields because of its low cost and strong environmental adaptability, and the circulating water pump as the heart of the cooling circulating water device is in the core position, and the length of its life, the efficiency, the low failure rate are very key to guarantee the good operation of the main device.

[0003] In the design and construction process, due to the personnel level, construction process control, etc., there are deviations from the actual operation, such as the treatment of the inner wall weld of the pipeline, the position and layout of the water inlet and water return of the pool, the installation of valves and expansion joints and other accessories, the long pre-pump pipeline and the unreasonable reducing, which greatly affect the water flow environment of the pre-pump pipeline, and easily produce vortex, and the high-speed rotating flow into the pump causes different degrees of wear of the impeller and the shell, greatly affects the stable operation of the centrifugal water pump, increases the operation cost, and has a great influence on the whole circulating water station.

[0004] Therefore, in view of the above-mentioned problem that the existing centrifugal water pump pipeline is prone to vortex, a disturbance device for the inlet of the centrifugal water pump pipeline can be designed to effectively improve the water flow state in the pre-stage pipeline of the circulating water pump, eliminate vortex, reduce the wear of the impeller and the shell of the centrifugal water pump, and increase the service life. UTILITY MODEL CONTENTS

[0005] In order to overcome the problem that the existing centrifugal water pump pipeline is prone to vortex.

[0006] The technical scheme of the utility model is: a disturbance device for the inlet of the centrifugal water pump pipeline, comprising a reducing pipe, and a combined spoiler plate, a sleeve pipe is arranged on the outer side of the combined spoiler plate, a clamping seat is arranged on the inner wall of the reducing pipe, and the sleeve pipe and the clamping seat are clamped and connected.

[0007] The combined spoiler plate is composed of a horizontal rib plate and a vertical rib plate, and the horizontal rib plate and the vertical rib plate are distributed in a warp-weft staggered manner, and the two ends of the horizontal rib plate and the vertical rib plate are respectively welded and fixed to the inner wall of the sleeve pipe.

[0008] Preferably, the horizontal rib plate and the vertical rib plate form a cross-shaped mesh plate, and are installed in the reducing pipe, so that the water flow is divided when passing through, the generation of vortex is reduced, the disturbance is realized, the vortex is eliminated, the wear of the impeller and the shell of the centrifugal water pump is reduced, and the service life is increased.

[0009] Preferably, one end of the reducing pipe is provided with a large-diameter side, and the other end of the reducing pipe is provided with a small-diameter side, the diameter of the large-diameter side is 630-1200 mm, and the diameter of the small-diameter side is 400-650 mm.

[0010] Preferably, five transverse rib plates and five longitudinal rib plates are arranged respectively, and the distances between the transverse rib plates and the longitudinal rib plates are the same, and the length of the transverse rib plates and the longitudinal rib plates is half of the reducing pipe.

[0011] Preferably, a clamping groove one is arranged on the outer side of the surface of the transverse rib plate, a clamping groove two corresponding to the clamping groove one of the transverse rib plate is arranged on the longitudinal rib plate, and the width of the clamping groove and the thickness of the transverse rib plate are matched.

[0012] Preferably, the sleeve pipe and the reducing pipe are connected in a fit mode, and the two ends of the sleeve pipe are sleeved with the two ends of the reducing pipe respectively.

[0013] Preferably, the clamping seat is in an L-shaped structure, and the end of the clamping seat is an elastic metal sheet.

[0014] Preferably, the clamping seat is in an annular array and has four groups, and each group of the clamping seat has two clamping seats.

[0015] The utility model discloses the beneficial effect that:

[0016] The turbulence device for the pipeline entrance of the centrifugal water pump is formed with the net-shaped net plate through the transverse rib plate and the longitudinal rib plate, is installed in the reducing pipe, water flow is divided when passing through, the generation of vortex is reduced, turbulence is realized, vortex is eliminated, the abrasion of the centrifugal water pump impeller and the shell by vortex is reduced, the service life is increased, the structure of the clamping groove is used, the transverse rib plate and the longitudinal rib plate are formed with the plug-in combination, the dismounting of the combined turbulence plate is facilitated, the whole reducing pipe does not need to be replaced when being damaged, maintenance is facilitated, and the practicality is improved. ACCURACY OF DRAWINGS

[0017] Figure 1 The utility model discloses a turbulence device for the pipeline entrance of the centrifugal water pump is shown as the three-dimensional Figure 1 ;

[0018] Figure 2 The utility model discloses a turbulence device for the pipeline entrance of the centrifugal water pump is shown as the three-dimensional Figure 2 ;

[0019] Figure 3 The utility model discloses a turbulence device for the pipeline entrance of the centrifugal water pump is shown as the three-dimensional

[0020] Figure 4 The utility model discloses a turbulence device for the pipeline entrance of the centrifugal water pump is shown as the three-dimensional.

[0021] Explanation of reference signs: 1, reducing pipe; 21, transverse rib plate; 22, longitudinal rib plate; 3, sleeve pipe; 4, clamping seat. DETAILED DESCRIPTION

[0022] The utility model is further explained in connection with the drawings and examples.

[0023] Please refer to Figures 1-4 , the utility model provides a kind of example: a turbulence device for centrifugal water pump pipeline entrance, including reducing pipe 1, still including combined spoiler, the outside of combined spoiler is provided with sleeve pipe 3, clamping seat 4 is provided on the inner wall of reducing pipe 1, sleeve pipe 3 and clamping seat 4 clamping connection, one end of reducing pipe 1 is provided with large-diameter side, the other end of reducing pipe 1 is provided with small-diameter side, the diameter of large-diameter side is 630mm-1200mm, the diameter of small-diameter side is 400mm-650mm;

[0024] Combined spoiler is composed of transverse rib plate 21 and longitudinal rib plate 22, transverse rib plate 21 and longitudinal rib plate 22 are staggered distribution, the two ends of transverse rib plate 21 and longitudinal rib plate 22 are respectively welded and fixed with the inner wall of sleeve pipe 3, cross type net plate is formed by transverse rib plate 21 and longitudinal rib plate 22, and is installed into reducing pipe 1, so that water flow is divided when passing, reduces the generation of eddy current, realizes turbulence, to eliminate eddy current, reduce the abrasion of centrifugal water pump impeller and shell, increase service life.

[0025] Please refer to Figure 1 、 Figure 3 And Figure 4 , in the embodiment, transverse rib plate 21 and longitudinal rib plate 22 are provided with five respectively, and the spacing between transverse rib plate 21 and longitudinal rib plate 22 is same, the length of transverse rib plate 21 and longitudinal rib plate 22 is half of reducing pipe 1, the outside of transverse rib plate 21 surface is provided with clamping groove one, longitudinal rib plate 22 is provided with clamping groove two corresponding with the clamping groove one of transverse rib plate 21, the width of clamping groove and the thickness of transverse rib plate 21 are adapted, the plug-in connection of transverse rib plate 21 and longitudinal rib plate 22 can realize dismounting, and whole reducing pipe 1 does not need to be replaced, improve the convenience.

[0026] Please refer to Figure 1 And Figure 2 , in the embodiment, sleeve pipe 3 and reducing pipe 1 are connected, and the two ends of sleeve pipe 3 are respectively and the two ends of reducing pipe 1 are sleeved, clamping seat 4 is designed as L type structure, the end of clamping seat 4 is elastic sheet, clamping seat 4 is annular array distribution and has four groups, each group of clamping seat 4 is provided with two, facilitate the installation and dismounting of turbulence structure, convenient to replace, improve practicality.

[0027] In the work, the front pipe of circulating water pump reducer pipe 1 is disassembled from the main pipe, the rib plate size is measured according to the corresponding interval, the rib plate can be made of stainless steel plate, according to the measured size, the cutting machine is cut down, a total of 10 pieces, according to the butt joint size, the required engagement groove is cut, the transverse rib plate 21 and the longitudinal rib plate 22 are formed into splicing, convenient disassembly and assembly, the outside is connected and fixed by sleeve pipe 3, a group of rib plates and sleeve pipe 3 are welded and fixed, and according to the spacing of the combined spoiler, the clamping seat 4 is fixed in the reducer pipe 1, then the sleeve pipe 3 is inserted from the large diameter side of the reducer pipe 1, and the clamping seat 4 is formed into clamping limiting, finally the reducer pipe 1 is reinstalled and connected, so that the water flow is divided when passing through, the vortex is reduced, the vortex is realized, the vortex is eliminated, the wear of the centrifugal water pump impeller and the shell is reduced, the service life is increased, and the combined spoiler is convenient to disassemble and assemble, convenient to maintain.

[0028] Through the above steps, the cross type net plate is formed by the transverse rib plate 21 and the longitudinal rib plate 22, and is installed into the reducer pipe 1, so that the water flow is divided when passing through, the vortex is reduced, the vortex is realized, the vortex is eliminated, the wear of the centrifugal water pump impeller and the shell is reduced, the service life is increased, and the problem that the existing centrifugal water pump pipe is prone to vortex is solved.

Claims

1. A flow-turbulence device for the inlet of a centrifugal water pump pipeline, comprising a reducing pipe (1), characterized in that: It also includes a combined spoiler, with a sleeve (3) provided on the outer side of the combined spoiler and a locking seat (4) provided on the inner wall of the reducing pipe (1). The sleeve (3) and the locking seat (4) are locked together. The combined spoiler consists of transverse stiffeners (21) and longitudinal stiffeners (22). The transverse stiffeners (21) and longitudinal stiffeners (22) are distributed in an alternating pattern. The two ends of the transverse stiffeners (21) and longitudinal stiffeners (22) are welded and fixed to the inner wall of the sleeve tube (3).

2. The turbulence-disrupting device for the inlet of a centrifugal water pump pipeline according to claim 1, characterized in that: One end of the reducing pipe (1) is provided with a large diameter side and the other end is provided with a small diameter side. The diameter of the large diameter side is 630mm-1200mm and the diameter of the small diameter side is 400mm-650mm.

3. A flow-disrupting device for the inlet of a centrifugal water pump pipeline according to claim 2, characterized in that: Five transverse stiffeners (21) and five longitudinal stiffeners (22) are provided, and the transverse stiffeners (21) and the longitudinal stiffeners (22) are distributed at equal intervals. The length of the transverse stiffeners (21) and the longitudinal stiffeners (22) is half that of the reducing pipe (1).

4. A flow-disrupting device for the inlet of a centrifugal water pump pipeline according to claim 3, characterized in that: A first engagement groove is provided on the transverse stiffener (21), and a second engagement groove corresponding to the first engagement groove of the transverse stiffener (21) is provided on the longitudinal stiffener (22). The width of the first engagement groove is adapted to the thickness of the transverse stiffener (21).

5. A flow-disrupting device for the inlet of a centrifugal water pump pipeline according to claim 4, characterized in that: The sleeve (3) and the reducer (1) are fitted together, and the two ends of the sleeve (3) are respectively matched with the two port diameters of the reducer (1).

6. A flow-turbulence device for the inlet of a centrifugal water pump pipeline according to claim 5, characterized in that: The locking seat (4) has an L-shaped structure, and the end of the locking seat (4) is an elastic metal sheet.

7. A flow-disrupting device for the inlet of a centrifugal water pump pipeline according to claim 6, characterized in that: The card holders (4) are arranged in a ring array of four groups, with two card holders in each group.

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