Grid for water taking head of pipeline

Abstract

The utility model relates to a grating for a water taking head of a pipeline. The grating comprises a coarse grating layer, a transition section, a middle grating layer and a connecting section which are connected in sequence, wherein the connecting section is detachably connected with a water taking pipeline, and raw water enters from the coarse screen layer and flows out from the water taking pipeline after being filtered; the water taking system has the beneficial effects that impurities in raw water can be effectively removed, the water inlet quality of the raw water and stable and safe operation of the water taking system are ensured, and the operation and maintenance cost of the water taking system is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal plants and stations, and specifically relates to a grille for a pipeline water intake head. Background Art

[0002] There are many forms of water intake structures, among which the water intake head is an important part. There are many types of water intake heads, and the commonly used ones include trumpet pipes, mushroom shapes, fish-shaped covers, box types, and pier types, etc. The water intake structure is mainly used for raw water intake.

[0003] The quality of the source water inlet is mainly controlled by the grille. The grille has the function of removing impurities and improving the quality of raw water. Traditional grilles include straight bar grilles, arc grilles, rotary drum grilles, movable bar grilles, etc. Most traditional pipeline grilles can only remove large particle impurities, and some small particle impurities cannot be removed. In water intake projects, straight bar grilles are used more frequently, but the impurity removal effect of traditional straight bar grilles is average, increasing the risk of operation obstacles in the water intake project system. At the same time, some small particle impurities cannot be removed, reducing the quality of the raw water inlet. Summary of the Utility Model

[0004] The utility model aims at the technical problems existing in the prior art, and provides a grille for a pipeline water intake head, which improves the impurity removal rate and reduces the risk of system failures.

[0005] The technical solution for the utility model to solve the above technical problems is as follows: A grille for a pipeline water intake head, comprising: a coarse grille layer, a transition section, a medium grille layer, and a connection section connected in sequence;

[0006] Wherein, the connection section is detachably connected to the water intake pipeline, and the raw water enters from the coarse grille layer and flows out from the water intake pipeline after being filtered.

[0007] As a further technical solution, the coarse grille layer includes a first grille mesh at the water inlet end, a plurality of first grid bars, and a first connecting piece. The two ends of the first grid bars are respectively connected to the grille mesh and the first connecting piece, and a plurality of the first grid bars are arranged at equal intervals along the circumferential direction of the grille mesh, so that the grille mesh, the first grid bars, and the first connecting piece form a grille cover.

[0008] As a further technical solution, the first grille mesh includes a circular round steel and a plurality of second grid bars. The plurality of second grid bars are arranged at equal intervals on the round steel to form a circular grille mesh;

[0009] Wherein, the first grid bars and the second grid bars are vertically arranged in space.

[0010] As a further technical solution, the distance between adjacent first grid bars is 45 - 55 mm, and the diameter of the first grid bars is 8 - 12 mm.

[0011] As a further technical solution, the first connecting member is circular, and first bolt holes are equidistantly arranged on its circumference.

[0012] As a further technical solution, the transition section includes a bellmouth pipe and a second connecting member welded to the bellmouth pipe. The large-diameter end and the small-diameter section of the bellmouth pipe are respectively connected to the second connecting member and the middle grid layer;

[0013] Among them, the second connecting member is detachably connected to the first connecting member.

[0014] As a further technical solution, the middle grid layer includes a second grid mesh and a third connecting member arranged along the circumference of the second grid mesh. The two ends of the third connecting member are respectively connected to the connecting section and the small-diameter end of the bellmouth pipe.

[0015] As a further technical solution, the grid mesh is made of vertically crossed steel wires.

[0016] As a further technical solution, the connecting section is in the shape of a pipe, and a number of second bolt holes are equidistantly arranged along its circumference;

[0017] Among them, the water inlet end of the water intake pipe is inserted into the connecting section and abuts against the middle grid layer, and is detachably connected to the connecting section through the second bolt holes.

[0018] The beneficial effects of the present utility model are:

[0019] 1. It can effectively remove impurities in the raw water, ensure the quality of the raw water inlet and the stable and safe operation of the water intake system, and effectively reduce the operation and maintenance costs of the water intake system;

[0020] 2. It is convenient to disassemble, and each structure is assembled. When the pipe orifice is blocked, it is convenient to disassemble, repair and clean;

[0021] 3. With the overall structure design, it can effectively reduce the production and operation costs, and is more in line with the development concept of green, low-carbon and energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a grid structure for a pipeline water intake head of the present utility model. Among them, the arrow indicates the flow direction of the raw water;

[0023] Figure 2 is Figure 1 the schematic cross-sectional structure diagram of A - A in

[0024] Figure 3 isFigure 1 Schematic diagram of the sectional structure along B-B;

[0025] Figure 4 is Figure 1 Schematic diagram of the sectional structure along C-C;

[0026] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0027] Coarse grille layer 1, first grille mesh 11, round steel 111, second grille bar 112, first grille bar 12, first connecting member 13, first bolt hole 14;

[0028] Transition section 2, bellmouth 21, second connecting member 22;

[0029] Medium grille layer 3, second grille mesh 31, third connecting member 32;

[0030] Connection section 4, second bolt hole 41;

[0031] Water intake pipe 5, bolt 6. Specific implementation manner

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0033] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0034] In the description of the present application, the term "for example" is used to mean "serving as an example, illustration, or explanation". Any embodiment described as "for example" in the present application is not necessarily construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present utility model. In the following description, details are set forth for purposes of explanation. It should be understood that those of ordinary skill in the art can recognize that the present utility model can be implemented without the use of these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of the present utility model with unnecessary details. Therefore, the present utility model is not intended to be limited to the embodiments shown, but rather to be in line with the broadest scope consistent with the principles and features disclosed in the present application.

[0035] In order to remove larger particulate impurities in the raw water while assisting the safe and stable operation of the water intake system and reducing the production and operation maintenance costs, this embodiment provides a grille for the pipeline water intake head. Refer to Figure 1 , which includes a coarse grille layer 1, a transition section 2, a medium grille layer 3, and a connection section 4 connected in sequence; wherein, the connection section 4 is detachably connected to the water intake pipeline 5, and the raw water enters from the coarse grille layer 1 and flows out from the water intake pipeline 5 after being filtered; during this process, the large particulate impurities in the raw water are removed by the coarse grille layer 1, and the transition layer is used to carry the impurities removed by the medium grille layer 3, and the medium grille layer 3 effectively removes medium-sized impurities.

[0036] In the specific implementation process, refer to Figure 1 、 Figure 2, the coarse grille layer 1 includes a first grille mesh 11 at the water inlet end, several first grille bars 12, and a first connecting member 13. The two ends of the first grille bars 12 are respectively connected to the first grille mesh 11 and the first connecting member 13, and several of the first grille bars 12 are arranged at equal intervals along the circumferential direction of the first grille mesh 11, so that the first grille mesh 11, the first grille bars 12, and the first connecting member 13 form a grille cover; further, the distance between adjacent first grille bars 12 is 45 - 55 mm, optionally 50 mm, the diameter of the first grille bars 12 is 8 - 12 mm, optionally 10 mm, and the length can be 200 mm; the first connecting member 13 is circular, and bolt holes 14 for bolts 6 are arranged at equal intervals on its circumference. The coarse grille layer 1 is connected to the transition section 2 by passing bolts 6 through the bolt holes 14 for bolts 6. When it is necessary to repair or process the impurities intercepted in the coarse grille layer 1, the coarse grille layer 1 can be separated from the transition section 2 by removing the bolts 6, and then the impurities are processed; the first connecting member 13 can be a flat steel, and its width is appropriately adjusted according to the size of the surface connected to the transition section 2. For stability, the flat steel is equally divided into 8 parts according to the circular angle, and 8 bolt holes 14 for bolts 6 are arranged at equal intervals on the circumference of the flat steel. To extend its service life, the flat steel is made of stainless steel material;

[0037] Further, referring to Figure 2 , the first grille mesh 11 includes a round steel 111 and several second grille bars 112. The several second grille bars 112 are arranged at equal intervals on the round steel 111 to form a circular first grille mesh 11. The first grille mesh 11 intercepts large particulate impurities in the raw water, and the diameter of the second grille bars 112 is 8 - 12 mm, optionally 10 mm, and the length can be 200 mm. The distance between adjacent first grille bars 12 is 45 - 55 mm, optionally 50 mm; wherein, the first grille bars 12 and the second grille bars 112 are vertically arranged in space.

[0038] In the specific implementation process, referring to Figure 1 , Figure 3 , the transition section 2 includes a bellmouth 21 and a second connecting member 22 welded to the bellmouth 21. The large-diameter end and the small-diameter section of the bellmouth 21 are respectively connected to the second connecting member 22 and the medium grille layer 3, and the inner diameter of the small-diameter port of the bellmouth 21 is the outer diameter of the water intake pipe 5; wherein, the second connecting member 22 is detachably connected to the first connecting member 13. More specifically, the second connecting member 22 is a flat steel, and has the same size and material as the first connecting member 13, and is connected by bolts 6; that is, holes for bolts 6 to pass through are evenly distributed on the circumference of the second connecting member 22.

[0039] In the specific implementation process, referring toFigure 1 , Figure 4 , the middle grille layer 3 includes a second grille mesh 31 and a third connecting member 32 arranged along the circumferential direction of the second grille mesh 31. The two ends of the third connecting member 32 are respectively connected to the connecting section 4 and the small-diameter end of the horn pipe 21. The second grille mesh is woven by vertically crossing a plurality of steel wires. Preferably, the diameter of the steel wire is 2 mm, and the mesh gap of the second grille mesh 31 is 20 mm × 20 mm. However, this gap can be appropriately adjusted according to the diameter of the water intake pipe. The third connecting member 32 is a flat steel with a specification of 15 mm × 2 mm. The third connecting member 32 is made of the same material as the first connecting member 13.

[0040] In the specific implementation process, the connecting section 4 is in the shape of a pipe, and a number of second bolt holes 41 are equidistantly arranged along its circumferential direction. Preferably, there are eight second bolt holes 41. The connecting section 4 is made of steel pipe, and the length can be selected as 200 mm. The inner diameter of the steel pipe is the outer diameter of the water intake pipe. Among them, the water inlet end of the water intake pipe 5 is inserted into the connecting section 4 and abuts against the middle grille layer 3, and is detachably connected to the connecting section 4 through the second bolt holes 41.

[0041] In the above embodiments, the structural dimensions, spacings, etc. can be reasonably adjusted according to the actual situation and are not limited herein.

[0042] It should be noted that in the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0043] Although the preferred embodiments of the present invention have been described, once those skilled in the art learn the basic creative concept, additional changes and modifications can be made to these embodiments. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A grille for a pipe water intake head, characterized in that: It comprises a coarse grid layer (1), a transition section (2), a medium grid layer (3), and a connecting section (4) which are connected in sequence; The connecting section (4) is detachably connected to the water intake pipe (5), and raw water enters from the coarse grid layer (1) and flows out from the water intake pipe (5) after being filtered.

2. A grille for a pipe water intake head according to claim 1, characterized in that: The coarse grid layer (1) comprises a first grid mesh (11) located at a water inlet end, a plurality of first grid bars (12), and a first connecting member (13), wherein two ends of the first grid bars (12) are respectively connected to the first grid mesh (11) and the first connecting member (13), and the plurality of first grid bars (12) are arranged at equal intervals along the circumferential direction of the first grid mesh (11), so that the first grid mesh (11), the first grid bars (12), and the first connecting member (13) constitute a grid cover.

3. A grille for a pipe water intake head according to claim 2, characterized in that: The first grid mesh (11) comprises a circular round steel bar (111) and a plurality of second grid bars (112), wherein the plurality of second grid bars (112) are arranged at equal intervals on the round steel bar (111) to form a circular first grid mesh (11); The first grid bars (12) and the second grid bars (112) are arranged vertically in space.

4. A grille for a pipe water intake head according to claim 2, characterized in that: The spacing between adjacent first grid bars (12) is 45-55 mm, and the diameter of the first grid bar (12) is 8-12 mm.

5. A grille for a pipe water intake head according to claim 2, characterized in that: The first connecting member (13) is circular, and first bolt holes (14) are arranged at equal intervals on its circumference.

6. A grille for a pipe water intake head according to claim 2, characterized in that: The transition section (2) comprises a bell tube (21) and a second connecting piece (22) welded to the bell tube (21); the large diameter end and the small diameter end of the bell tube (21) are respectively connected to the second connecting piece (22) and the middle grid layer (3); The second connecting member (22) is detachably connected to the first connecting member (13).

7. A grille for a pipe water intake head according to claim 6, characterized in that: The middle grid layer (3) comprises a second grid mesh and a third connecting piece (32) arranged along the circumference of the second grid mesh, and the third connecting piece (32) is connected at both ends to the connecting section (4) and the small-diameter end of the bell tube (21), respectively.

8. A grille for a pipe water intake head according to claim 7, characterized in that: The second grid mesh is formed by vertically crossing steel wires.

9. A grille for a pipe water intake head according to claim 7, characterized in that: The connecting section (4) is in the shape of a pipe and is provided with a plurality of second bolt holes (41) at equal intervals along its circumference; Wherein, the water inlet end of the water intake pipe is inserted into the connecting section (4) and abuts against the middle grid layer (3), and is detachably connected to the connecting section (4) through the second bolt hole (41).

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