Diversion tunnel trash holding mechanism and pumped storage power station

Abstract

The utility model provides a diversion tunnel trash holding mechanism and a pumped storage power station, and relates to the technical field of hydroelectric generation, the diversion tunnel trash holding mechanism provided by the utility model comprises a floating container and an intercepting net; the floating container is used for floating in water, and an opening is formed in the top of the floating container. The intercepting net rotates around the floating container in a matched mode, and the rotating axis of the intercepting net is parallel to the horizontal plane. Floating objects in water can be intercepted through the intercepting net, when the intercepting net rotates to the position above the opening of the floating container, the floating objects fall into the floating container, the floating object intercepting and collecting functions are achieved, follow-up cleaning of the floating objects is facilitated, the intercepting net can be detached, cleaning and replacement of the intercepting net are facilitated, and practicability is high. And floating objects can be prevented from being deposited on the intercepting net, and the flowing smoothness of water is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hydropower generation, in particular to a sewage interception mechanism for a water diversion tunnel and a pumped storage power station. Background Art

[0002] Pumped-storage power stations generate electricity mainly by using the flow of water to drive the rotation of generators. They use diversion tunnels with gentle slopes to divert water from river sections with steeper slopes and more concentrated height differences, as well as river bends or places with large differences in adjacent riverbed elevations, to form a height difference that meets the requirements with the natural water surface for power generation.

[0003] In the construction of pumped storage power stations, the water diversion tunnel project is one of the underground projects. However, there will be a lot of floating objects in the upstream of the reservoir passing through the water diversion tunnel to the downstream, causing pollution downstream, and will enter the generator set and cause damage to the generator set. Usually, trash racks are installed in the water diversion tunnel and at the entrance of the power station to intercept floating objects, but the floating objects and garbage intercepted by the trash racks will accumulate, causing siltation and insufficient water intake to the power station, which in turn affects the power generation efficiency. Utility Model Content

[0004] The utility model aims to provide a water diversion tunnel pollution interception mechanism and a pumped storage power station, which can not only intercept floating objects in the water, but also facilitate the collection and cleaning of the floating objects.

[0005] In a first aspect, the utility model provides a water diversion tunnel pollution interception mechanism, comprising: a floating container and an interception net;

[0006] The floating container is used to float in water, and the top of the floating container has an opening;

[0007] The interception net is rotatably fitted around the floating container, and the rotation axis of the interception net is parallel to the horizontal plane.

[0008] In combination with the first aspect, the utility model provides a first possible implementation of the first aspect, wherein the interception net is provided in multiple pieces;

[0009] The rotation axis of the interception net is parallel to the unfolding surface of the interception net, or the rotation axis of the interception net is located on the unfolding surface of the interception net;

[0010] The plurality of intercepting nets are arranged at intervals along the circumference of the rotation axis of the intercepting net.

[0011] In combination with the first possible implementation of the first aspect, the utility model provides a second possible implementation of the first aspect, wherein the bottom outer wall surface of the floating container is configured as a semi-cylindrical surface around the rotation axis of the interception net;

[0012] The interception net located at the bottom of the floating container is in contact with the bottom outer wall surface of the floating container.

[0013] In combination with the first aspect, the utility model provides a third possible implementation of the first aspect, wherein a bottom wall surface of the floating container is provided with a plurality of through holes, and the plurality of through holes are arranged at intervals.

[0014] In combination with the first aspect, the utility model provides a fourth possible implementation of the first aspect, wherein the water diversion tunnel pollution interception mechanism further includes: a rotating frame;

[0015] The rotating frame is rotatably connected to the floating container around an axis parallel to the horizontal plane, and the intercepting net is installed on the rotating frame.

[0016] In combination with the fourth possible implementation of the first aspect, the utility model provides a fifth possible implementation of the first aspect, wherein the intercepting net is detachably connected to the rotating frame.

[0017] In combination with the fourth possible implementation manner of the first aspect, the utility model provides a sixth possible implementation manner of the first aspect, wherein the rotating frame is connected to a rotating shaft, and the rotating shaft is rotatably matched with the floating container.

[0018] In combination with the sixth possible implementation of the first aspect, the utility model provides a seventh possible implementation of the first aspect, wherein the floating container is provided in plurality, and the plurality of floating containers are arranged at intervals along the axial direction of the rotating shaft and are connected in sequence;

[0019] The rotating frame is installed on each of the floating containers through the rotating shaft, and each of the rotating frames is installed with a plurality of intercepting nets arranged at intervals around the rotating shaft.

[0020] In combination with the seventh possible implementation of the first aspect, the utility model provides an eighth possible implementation of the first aspect, wherein a plurality of the rotating shafts are connected in sequence.

[0021] In the second aspect, the pumped storage power station provided by the utility model is equipped with the water diversion tunnel pollution interception mechanism recorded in the first aspect.

[0022] The embodiments of the utility model bring the following beneficial effects: a floating container is floated in the water, and an opening is provided at the top of the floating container; an interception net rotates around the floating container, and the rotation axis of the interception net is parallel to the horizontal plane; floating objects in the water can be intercepted by the interception net; when the interception net rotates above the opening of the floating container, the floating objects will fall into the floating container, and the floating object interception and collection functions are provided, and subsequent cleaning of the floating objects is facilitated, and the floating objects can be prevented from accumulating on the interception net, thereby ensuring smooth water flow.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 A schematic diagram of a sewage interception mechanism for a water diversion tunnel provided in an embodiment of the utility model;

[0026] Figure 2 A schematic diagram of a combination of multiple water diversion tunnel pollution interception mechanisms provided in an embodiment of the utility model.

[0027] Icons: 100 - floating container; 101 - opening; 102 - through hole; 200 - interception net; 300 - rotating frame; 400 - rotating shaft. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used to describe the difference in names, and cannot be understood as indicating or implying relative importance. The physical quantities in the formula, if not separately marked, should be understood as basic quantities of the basic units of the International System of Units, or derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figure 1 As shown, the water diversion tunnel pollution interception mechanism provided by the embodiment of the utility model includes: a floating container 100 and an interception net 200; the floating container 100 is used to float in the water, and the top of the floating container 100 has an opening 101; the interception net 200 rotates around the floating container 100, and the rotation axis of the interception net 200 is parallel to the horizontal plane.

[0032] Specifically, the floating container 100 can be fixed to the water surface by means of ropes and other devices, and the water flow can pass through the interception net 200 to achieve smooth flow, and the floating objects in the water are intercepted and dropped by the interception net 200. The interception net 200 can be driven manually or by external power to rotate around the floating container 100. When the interception net 200 rotates to above the opening 101, the floating objects on it will fall into the floating container 100. When the interception net 200 rotates downward to contact the water flow, it can continue to intercept the floating objects in the water. In this way, the floating objects are intercepted and collected, and the subsequent cleaning of the floating objects is convenient, and the floating objects can be prevented from accumulating on the interception net, ensuring the smooth flow of water.

[0033] In the embodiment of the utility model, the interception net 200 is provided with multiple pieces; the rotation axis of the interception net 200 is parallel to the unfolded surface of the interception net 200, or the rotation axis of the interception net 200 is located on the unfolded surface of the interception net 200. Multiple pieces of interception nets 200 are arranged at intervals along the circumference of the rotation axis of the interception net 200. Preferably, the number of interception nets 200 provided is greater than or equal to 3 pieces, and the multiple pieces of interception nets 200 are evenly spaced along the circumference of the rotation axis, so as to ensure that at least one piece of interception net 200 is placed in the water, thereby continuously intercepting floating objects in the water.

[0034] Furthermore, the bottom outer wall surface of the floating container 100 is configured as a semi-cylindrical surface around the rotation axis of the interception net 200; the interception net 200 located at the bottom of the floating container 100 is in contact with the bottom outer wall surface of the floating container 100. When the interception net 200 placed in the water intercepts floating objects, the floating objects will swing upward with the interception net 200 until they swing to the top of the opening 101 and fall into the floating container 100. The interception net 200 located at the bottom of the floating container 100 is in contact with the bottom outer wall surface of the floating container 100, which can prevent the intercepted floating objects from leaking out.

[0035] In addition, the bottom wall of the floating container 100 is provided with a plurality of through holes 102 , which are arranged at intervals. The floating container 100 is partially immersed in water, and water can flow through the plurality of through holes 102 , thereby reducing the obstruction effect of the floating container 100 on the water flow.

[0036] In this embodiment, the water diversion tunnel pollution interception mechanism further includes a rotating frame 300 ; the rotating frame 300 is rotatably connected to the floating container 100 around an axis parallel to the horizontal plane, and the interception net 200 is installed on the rotating frame 300 .

[0037] The interception net 200 is supported and fixed by a rotating frame 300, and the interception net 200 and the rotating frame 300 are detachably connected by means of a snap connection or a bolt connection. The interception net 200 can be disassembled, cleaned and replaced separately, which facilitates equipment maintenance, reduces equipment maintenance costs and extends equipment service life.

[0038] Furthermore, the rotating frame 300 is connected to the rotating shaft 400, and the rotating shaft 400 is rotatably matched with the floating container 100. The rotating shaft 400 can be connected to an external power device in a transmission manner, and the rotating shaft 400 is driven to rotate, so that the interception net 200 located below the floating container 100 is swung in the upstream direction, thereby intercepting the floating objects in the water and transporting them to the top of the opening 101.

[0039] like Figure 1 and Figure 2 As shown, a plurality of floating containers 100 are provided, and the plurality of floating containers 100 are arranged at intervals along the axial direction of the rotating shaft 400 and are connected in sequence; a rotating frame 300 is installed on each floating container 100 through the rotating shaft 400, and each rotating frame 300 is installed with a plurality of intercepting nets 200 arranged at intervals around the rotating shaft 400, so that a combination of a plurality of water diversion tunnel pollution intercepting mechanisms can be formed, and the number of floating containers 100 can be adaptively configured according to the width of the water diversion tunnel.

[0040] In addition, the plurality of rotating shafts 400 are connected in sequence, so that they can share the same power source to drive the plurality of rotating shafts 400 and the plurality of rotating frames 300 to rotate synchronously, thereby improving the efficiency of intercepting and collecting floating objects.

[0041] The pumped-storage power station provided by the embodiment of the utility model is equipped with the water diversion tunnel pollution intercepting mechanism recorded in the above-mentioned implementation mode. The pumped-storage power station has the technical effect of the above-mentioned water diversion tunnel pollution intercepting mechanism, can continuously intercept and collect floating objects in the water, and can also avoid clogging caused by floating objects, and is convenient for disassembly, cleaning and replacement of the interception net 200, thereby extending the service life of the equipment and reducing the equipment use cost.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A sewage interception mechanism for a water diversion tunnel, It is characterized in that include: A floating container (100) and an interception net (200); The floating container (100) is used to float in water, and the top of the floating container (100) has an opening (101); The interception net (200) is rotatably fitted around the floating container (100), and the rotation axis of the interception net (200) is parallel to the horizontal plane.

2. The sewage interception mechanism for a water diversion tunnel according to claim 1, It is characterized in that The interception net (200) is provided in multiple pieces; The rotation axis of the interception net (200) is parallel to the unfolding surface of the interception net (200), or the rotation axis of the interception net (200) is located on the unfolding surface of the interception net (200); A plurality of interception nets (200) are arranged at intervals along the circumference of the rotation axis of the interception net (200).

3. The sewage interception mechanism for a water diversion tunnel according to claim 2, It is characterized in that The bottom outer wall surface of the floating container (100) is configured as a semi-cylindrical surface around the rotation axis of the interception net (200); The interception net (200) located at the bottom of the floating container (100) is in contact with the bottom outer wall surface of the floating container (100).

4. The sewage interception mechanism for a water diversion tunnel according to claim 1 or 3, It is characterized in that The bottom wall surface of the floating container (100) is provided with a plurality of through holes (102), and the plurality of through holes (102) are arranged at intervals.

5. The sewage interception mechanism for a water diversion tunnel according to claim 1, It is characterized in that The water diversion tunnel pollution interception mechanism further comprises: a rotating frame (300); The rotating frame (300) is rotatably connected to the floating container (100) around an axis parallel to the horizontal plane, and the intercepting net (200) is installed on the rotating frame (300).

6. The sewage interception mechanism for a water diversion tunnel according to claim 5, It is characterized in that The intercepting net (200) is detachably connected to the rotating frame (300).

7. The sewage interception mechanism for a water diversion tunnel according to claim 5, It is characterized in that The rotating frame (300) is connected to a rotating shaft (400), and the rotating shaft (400) is rotatably matched with the floating container (100).

8. The sewage interception mechanism for a water diversion tunnel according to claim 7, It is characterized in that The floating containers (100) are provided in plurality, and the plurality of floating containers (100) are arranged at intervals along the axial direction of the rotating shaft (400) and are connected in sequence; The rotating frame (300) is installed on each of the floating containers (100) via the rotating shaft (400), and each of the rotating frames (300) is installed with a plurality of intercepting nets (200) spaced apart around the rotating shaft (400).

9. The sewage interception mechanism for a water diversion tunnel according to claim 8, It is characterized in that A plurality of rotating shafts (400) are connected in sequence.

10. A pumped storage power station, It is characterized in that The pumped storage power station is equipped with a water diversion tunnel pollution interception mechanism as described in any one of claims 1-9.

Images