CN210946712U

CN210946712U - Trash rack for preventing underwater organisms from attaching

Info

Publication number: CN210946712U
Application number: CN201921362328.2U
Authority: CN
Inventors: 董旭; 耿清华; 刘顺东; 赵勇; 何传凯
Original assignee: Datang Hydropower Science and Technology Research Institute Co Ltd
Current assignee: Datang Hydropower Science and Technology Research Institute Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-07-07
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a prevent adnexed trash rack of biology under water relates to power station trash rack technical field, including main frame and grid. The main frame is rectangular structure, and the inside interval of main frame is worn to establish and is fixed with many grids, and the surface of main frame and grid is provided with the polytetrafluoroethylene dope layer. The polytetrafluoroethylene coating layer is a low surface energy material, and is sprayed and arranged outside the trash rack, underwater biological adsorption is firm without iron materials, and the adsorbed organisms can be easily vibrated to fall off during treatment, so that the phenomenon that the trash rack is blocked due to attachment of organisms can be prevented.

Description

Trash rack for preventing underwater organisms from attaching

Technical Field

The utility model relates to a power station trash rack technical field, in particular to prevent adnexed trash rack of biology under water.

Background

The hydropower station trash rack is placed underwater for a long time, so that underwater organisms such as shellfish are easily adsorbed, a large amount of bacteria are adhered to the surface of the material, and a layer of biological regulation film is formed. The larva and spore of the primary plankton fall on the biological regulation membrane in succession to secrete mucus with enhanced adhesive force, and strongly adhere and propagate through one or more synergistic effects of chemical bonding, electrostatic interaction, mechanical interlocking and diffusion interlocking. After the old generation of organisms die, part of the organisms cannot fall off automatically, and the new generation of organisms can be attached to the surface again to finally form large-scale biological groups. The marine organisms such as shellfish hard shells and the like die in fresh water for about one week, but cannot automatically fall off due to strong adhesion after the marine organisms die, so that the marine organisms become the basis for the attachment of a new round of organisms. The attached organisms can accelerate the blockage of the trash rack to cause water level difference behind the front grid of the trash rack, especially in the flood season, the water turbine set is fully opened, and when the garbage is the most, the set cannot be stopped, the trash rack garbage cannot be cleaned in time, so that great water head loss can be caused, and great economic loss can be caused.

Disclosure of Invention

In order to solve the above problem, the utility model discloses a following technical scheme realizes:

a trash rack for preventing underwater organisms from attaching comprises a main frame and grid bars;

the main frame is of a rectangular structure;

a plurality of grid bars are arranged in the main frame at intervals in a penetrating manner and are fixed;

the outer surfaces of the main frame and the grid bars are provided with polytetrafluoroethylene coating layers.

The polytetrafluoroethylene coating layer is a low surface energy material, and is sprayed and arranged outside the trash rack, underwater biological adsorption is firm without iron materials, and the adsorbed organisms can be easily vibrated to fall off during treatment, so that the phenomenon that the trash rack is blocked due to attachment of organisms can be prevented.

Preferably, the main frame comprises a plurality of horizontal bars and a plurality of vertical pipes;

the plurality of transverse bars are provided with pipe holes and grid bar holes, and the plurality of transverse bars are arranged in parallel at intervals;

the longitudinal pipe is fixedly arranged in the pipe hole in a penetrating way, and a plurality of transverse strips are fixedly connected to form a rectangular frame;

the grid bars are fixedly arranged in the grid bar holes in a penetrating way;

the vertical pipe is of a tubular structure with one open end and the other closed end, and a vibrating rod is detachably arranged in the vertical pipe in a penetrating mode.

When the trash rack needs to be cleaned, the vibrating rod can be inserted into the longitudinal pipe and then is connected with the vibrator to vibrate, so that attachments on the trash rack can be easily shaken off, and the cleaning time of operators is greatly saved.

Preferably, the main frame is made of brass material;

the grid bars are made of iron materials.

Brass is also the bottom surface energy material and does not adhere easily if the teflon paint layer fails. In consideration of the cost problem, the grid bars are made of iron materials, but polytetrafluoroethylene coating layers are sprayed outside the grid bars, and when the grid bars are damaged, the grid bars can be independently replaced, so that the replacement cost can be reduced.

Preferably, the outer surfaces of the main frame and the grid bars are sprayed with polytetrafluoroethylene coating layers.

The polytetrafluoroethylene coating layer can be more uniform and smooth by adopting a spraying mode, and the adhesion capability of the polytetrafluoroethylene coating layer is improved.

Preferably, the open end of the longitudinal pipe is provided with the pipe plug for plugging the pipe orifice to prevent water and microorganisms from entering.

The utility model discloses beneficial effect includes:

simple structure, ingenious structure, good stability and convenient assembly and maintenance.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the embodiment provided by the present invention;

FIG. 2 is a schematic view of the main frame;

FIG. 3 is a schematic view of the tamper rod as it is inserted;

in the drawings, each reference numeral denotes: the vibrating bar comprises a main frame 1, a grid bar 2, a vibrating bar 3, a transverse bar 10 and a longitudinal pipe 11.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described clearly and completely with reference to fig. 1 to 3 of the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

As shown in fig. 1, a trash rack for preventing attachment of underwater organisms includes a main frame 1 and bars 2.

The main frame 1 has a rectangular structure. The main frame 1 includes a plurality of horizontal bars 10 and a plurality of vertical pipes 11, the horizontal bars 10 are strip-shaped structures, and the cross section thereof is a rectangular structure. The transverse bars 10 are provided with tube holes and grid bar holes. In this embodiment, 4 pipe holes are opened on each horizontal bar 10, and are uniformly distributed along the length direction of the horizontal bar 10. 3 grid holes are arranged between each pipe hole and are also uniformly distributed.

As shown in fig. 2, 4 transverse bars 10 are arranged in parallel at intervals, the longitudinal pipes 11 are fixed in the pipe holes in a penetrating manner, and the transverse bars 10 are connected and fixed to form a rectangular frame.

Referring to fig. 1 and 2, the grills 2 are fixed in the grills holes.

The outer surfaces of the main frame 1 and the grid bars 2 are provided with polytetrafluoroethylene coating layers.

In order to facilitate cleaning of attachments outside the trash rack, in one embodiment, the longitudinal tube 11 is a tubular structure with one end open and the other end closed, and the vibrating rod 3 is detachably arranged in the longitudinal tube 11 in a penetrating manner. The vibrating rod 3 is a tool commonly used for concrete vibration, is available in the prior art, and is not specifically described again.

When needs clearance trash rack, can insert the vibrator 3 with vibrating rod and shake in the vertical pipe 11 then connect the vibrator, just can easily shake the attachment on the trash rack and fall, saved operating personnel's clearance time greatly.

In addition, in order to further prevent the adhesion of microorganisms due to the failure of the teflon coating layer, the main frame 1 is made of brass. The grid bars 2 are made of iron materials. The outer surfaces of the main frame 1 and the grid bars 2 are sprayed with polytetrafluoroethylene coating layers.

Brass is also the bottom surface energy material and does not adhere easily if the teflon paint layer fails. In consideration of the cost problem, the grid bars 2 are made of iron materials, but polytetrafluoroethylene coating layers are sprayed outside the grid bars 2, and when the grid bars 2 are damaged, the grid bars can be independently replaced, so that the replacement cost can be reduced.

When the cleaning is not needed, a pipe plug is arranged at the open end of the longitudinal pipe 11 and used for plugging the pipe orifice to prevent water and microorganisms from entering.

The utility model discloses simple structure, the structure is ingenious, and stability is good, the equipment and the maintenance of being convenient for.

Claims

1. A trash rack for preventing underwater organisms from attaching is characterized by comprising a main frame (1) and grid bars (2);

the main frame (1) is of a rectangular structure;

a plurality of grid bars (2) are arranged in the main frame (1) at intervals in a penetrating manner and are fixed;

the outer surfaces of the main frame (1) and the grid bars (2) are provided with polytetrafluoroethylene coating layers.

2. The trash rack of claim 1, wherein:

the main frame (1) comprises a plurality of transverse strips (10) and a plurality of longitudinal pipes (11);

pipe holes and grid bar holes are formed in the plurality of transverse bars (10), and the plurality of transverse bars (10) are arranged in parallel at intervals;

the longitudinal pipes (11) are fixedly arranged in the pipe holes in a penetrating way, and a plurality of transverse strips (10) are fixedly connected to form a rectangular frame;

the grid bars (2) are fixedly arranged in the grid bar holes in a penetrating way;

the vertical pipe (11) is of a tubular structure with one open end and the other closed end, and the vibrating rod (3) can be detachably arranged in the vertical pipe (11) in a penetrating mode.

3. A trash rack as claimed in claim 1 or claim 2 wherein:

the main frame (1) is made of brass material;

the grid bars (2) are made of iron materials.

4. The trash rack of claim 1, wherein:

the outer surfaces of the main frame (1) and the grid bars (2) are sprayed with polytetrafluoroethylene coating layers.

5. The trash rack of claim 2, wherein:

and a pipe plug is arranged at the open end of the longitudinal pipe (11) and used for plugging the pipe orifice to prevent water and microorganisms from entering.