CN213407885U

CN213407885U - Automatic back-washing switching device for hydropower station

Info

Publication number: CN213407885U
Application number: CN202021604785.0U
Authority: CN
Inventors: 朱马超; 张福雨; 范家庆
Original assignee: Fuzhou Davalve Fluid Technology Co ltd
Current assignee: Fuzhou Davalve Fluid Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-06-11
Anticipated expiration: 2030-08-05

Abstract

The utility model discloses an automatic backwashing switching device for hydropower station in the technical field of filtering equipment, which comprises a shell and a filter element, wherein the shell is provided with a water inlet pipe and a water outlet pipe, the upper part of the filter element is provided with a water inlet and a water outlet, the outer wall of the upper part of the filter element is provided with a baffle mechanism, the baffle mechanism comprises a vertical baffle and a horizontal baffle, the vertical baffle is provided with a first opening and a second opening, the horizontal baffle is provided with a third opening, the bottom of the horizontal baffle is provided with a first gear, the first gear is engaged with a second gear, the second gear is engaged with a third gear, the third gear is provided with a driving device, and the middle part of the filter element is rotationally connected with a cleaning mechanism, the filter element can be cleaned by matching with back washing, and the cleaning effect is improved.

Description

Automatic back-washing switching device for hydropower station

Technical Field

The utility model relates to a filtration equipment technical field specifically is an automatic back flush auto-change over device for power station.

Background

The hydropower station is a comprehensive engineering facility for converting water energy into electric energy, and generally comprises a reservoir formed by a water retaining structure and a water discharging structure, a hydropower station water diversion system, a power generation plant, electromechanical equipment and the like. High-level water of the reservoir flows into a workshop through the water diversion system to push the hydroelectric generating set to generate electric energy, and then the electric energy is input into a power grid through the step-up transformer, the switching station and the power transmission line. Most of externally introduced water has impurities, and the water entering the water turbine generator set needs to be filtered due to the influence on the rotation of the water turbine caused by excessive impurity accumulation and the influence on power generation.

After the filter is used for a period of time, the filter screen can be cleaned in a back flushing mode, and the filtering efficiency is guaranteed. The existing backwashing switching device is mostly realized by overcoming the elasticity of a spring by the pressure of inlet water, but under the condition of low pressure, the water pressure cannot compress the spring to switch positions, and the backwashing switching effect cannot be achieved.

Based on this, the utility model designs an automatic back flush auto-change over device is used in power station to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power station is with automatic back flush auto-change over device to solve above-mentioned filter under the condition of low pressure, water pressure can not compression spring, carries out the position and switches, can not reach the problem of the effect that the back flush was switched.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic backwashing switching device for a hydropower station comprises a filter body, wherein the filter body comprises a shell and a filter element, a water inlet pipe and a water outlet pipe are respectively arranged on two sides of the upper part of the shell, a water inlet and a water outlet are arranged on the upper part of the filter element, a baffle mechanism is arranged on the outer wall of the upper part of the filter element and comprises a vertical baffle, a horizontal baffle is arranged at the bottom of the vertical baffle, a first opening and a second opening are arranged on the vertical baffle, a third opening is arranged on the horizontal baffle, a sliding groove matched with the horizontal baffle is arranged on the inner wall of the shell, a first gear is arranged at the bottom of the horizontal baffle, a second gear is connected to the first gear in a meshing manner, the second gear penetrates through the side wall of the shell and is connected with a third gear in a meshing;

the filter core middle part is rotated and is connected with clean mechanism, clean mechanism includes the impeller, the impeller passes through support and rotary drum inner wall connection, the rotary drum outer wall is provided with the brush.

Preferably, a sewage draining outlet is formed in the bottom of the shell.

Preferably, the second opening and the third opening are symmetrically arranged.

Preferably, the first openings and the second openings are staggered.

Preferably, the filter element is mounted on the inner wall of the shell through a mounting frame.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has reasonable structural design, on one hand, the movement direction of the water flow can be changed by rotating the baffle mechanism, so that the filter realizes the switching between the normal filtering state and the back flushing state, and the operation is convenient; on the other hand, the filter element is provided with the cleaning mechanism which can clean the filter element by matching with back washing, thereby improving the cleaning effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the filtering state structure of the present invention;

FIG. 2 is a schematic view of the position of the filtering state baffle mechanism of the present invention;

FIG. 3 is a schematic structural view of the back-washing state of the present invention;

FIG. 4 is a schematic view of the position of the baffle mechanism in the back-washing state of the present invention;

FIG. 5 is a sectional view taken along the line A-A of the present invention;

fig. 6 is a schematic structural view of the baffle mechanism of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

2. a housing; 21. a chute; 22. a sewage draining outlet; 3. a filter element; 31. a mounting frame; 4. a cleaning mechanism; 41. an impeller; 42. a support; 43. a rotating drum; 44. a brush; 5. a water inlet pipe; 6. a water outlet pipe; 7. a water inlet; 8. a water outlet; 91. a vertical baffle; 911. a first opening; 912. a second opening; 92. a horizontal baffle; 921. a third opening; 93. a first gear; 94. a second gear; 95. a third gear; 96. a drive device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: an automatic backwashing switching device for a hydropower station comprises a filter body, the filter body comprises a shell 2 and a filter element 3, a water inlet pipe 5 and a water outlet pipe 6 are respectively arranged on two sides of the upper part of the shell 2, a water inlet 7 and a water outlet 8 are arranged on the upper part of the filter element 3, a baffle mechanism is arranged on the outer wall of the upper part of the filter element 3 and comprises a vertical baffle 91, a horizontal baffle 92 is arranged at the bottom of the vertical baffle 91, a first opening 911 and a second opening 912 are arranged on the vertical baffle 91, a third opening 921 is arranged on the horizontal baffle 92, a chute 21 matched with the horizontal baffle 92 is arranged on the inner wall of the shell 2, the chute 21 is L-shaped, a first gear 93 is arranged at the bottom of the horizontal baffle 92, a second gear 94 is engaged and connected on the first gear 93, the second gear 94 is engaged and connected with a third gear 95 through, drive arrangement 96 can set up to motor or twist grip, 3 middle parts of filter core are rotated and are connected with clean mechanism 4, clean mechanism 4 includes impeller 41, impeller 41 is single direction rotation, impeller 41 passes through support 42 and rotary drum 43 inner wall connection, support 42 includes the upper bracket, lower carriage and ring carrier, the upper bracket, the lower carriage passes through the ring carrier and fixes and set up in rotary drum 43 inner wall, rotary drum 43 passes through tapered roller bearing and 3 lateral walls of filter core and rotates and be connected, rotary drum 43 outer wall is provided with brush 44, brush 44 corresponds with 3 lower part filtering areas of filter core, set up to rectangular shape, be provided with the brush body towards filter core 3 one side.

Further, a drain outlet 22 is arranged at the bottom of the shell 2, and a control valve is arranged on the drain outlet 22 and can discharge sewage after backwashing.

Furthermore, the second opening 912 and the third opening 921 are symmetrically arranged, so that the water body can enter the cavity between the housing 2 and the filter element 3 through the third opening 921, and flows out of the second opening 912 after being filtered by the filter element 3, and normal filtering operation is performed.

Further, the first opening 911 and the second opening 912 are alternately arranged, and the filtering state and the backwashing state are switched by changing the positions of the first opening 911 and the second opening 912.

Further, the filter element 3 is mounted on the inner wall of the shell 2 through the mounting frame 31, so that the filter element 3 is stably placed.

One specific application of this embodiment is: when filtering, the second opening 912 is aligned with the water outlet 8, at this time, the first opening 911 is staggered with the water inlet 7, the third opening 921 is located below the water inlet pipe 5, water flow can enter the cavity between the housing 2 and the filter element 3 from the third opening 921, and the water flow flows out through the second opening 912 after being filtered by the filter element 3, so that the filtering is completed;

during back flushing, the sewage discharge port 22 is opened, the driving device 96 drives the third gear 95 to rotate, the third gear 95 drives the second gear 94 to rotate, the second gear 94 drives the first gear 93 to rotate clockwise, the first gear 93 drives the horizontal baffle 92 and the vertical baffle 91 to rotate, so that the first opening 911 is aligned with the water inlet 7, the third opening is staggered with the water inlet pipe 5, the second opening 912 is staggered with the water outlet 8, water enters the filter element 3 through the water inlet 7 and moves downwards, the impeller 41 is driven by the water flow to rotate, the impeller 41 drives the rotary drum 43 to rotate along the side wall of the filter element 3, the rotary drum 43 drives the outer brush 44 to rotate, and the brush 44 loosens the filter area at the lower part of the filter element 3, meanwhile, water flows out of the filtering holes in the filter element 3, filter residues on the filtering holes and the side wall are washed away, and the filter residues are discharged from the discharge device of the bottom sewage outlet 22 along with the water flow, so that backwashing is completed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a power station is with automatic back flush auto-change over device, includes filter body, filter body includes casing (2), filter core (3), casing (2) upper portion both sides are provided with inlet tube (5) and outlet pipe (6) respectively, its characterized in that: the upper part of the filter element (3) is provided with a water inlet (7) and a water outlet (8), the outer wall of the upper part of the filter element (3) is provided with a baffle mechanism which comprises a vertical baffle (91), a horizontal baffle (92) is arranged at the bottom of the vertical baffle (91), a first opening (911) and a second opening (912) are arranged on the vertical baffle (91), a third opening (921) is arranged on the horizontal baffle (92), a sliding groove (21) matched with the horizontal baffle (92) is arranged on the inner wall of the shell (2), a first gear (93) is arranged at the bottom of the horizontal baffle (92), a second gear (94) is meshed and connected with the first gear (93), the second gear (94) penetrates through the side wall of the shell (2) and is connected with a third gear (95) in a meshing manner, and a driving device (96) is arranged on the third gear (95);

the filter core (3) middle part is rotated and is connected with clean mechanism (4), clean mechanism (4) include impeller (41), impeller (41) pass through support (42) and rotary drum (43) inner wall connection, rotary drum (43) outer wall is provided with brush (44).

2. The automatic backwash switching device for the hydropower station as defined in claim 1, wherein: a sewage draining outlet (22) is arranged at the bottom of the shell (2).

3. The automatic backwash switching device for the hydropower station as defined in claim 1, wherein: the second opening (912) and the third opening (921) are symmetrically arranged.

4. The automatic backwash switching device for the hydropower station as defined in claim 1, wherein: the first openings (911) and the second openings (912) are staggered.

5. The automatic backwash switching device for the hydropower station as defined in claim 1, wherein: the filter element (3) is installed on the inner wall of the shell (2) through an installation frame (31).