CN210857123U - Trash device and diversion engineering trash rack system - Google Patents
Trash device and diversion engineering trash rack system Download PDFInfo
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- CN210857123U CN210857123U CN201921719586.1U CN201921719586U CN210857123U CN 210857123 U CN210857123 U CN 210857123U CN 201921719586 U CN201921719586 U CN 201921719586U CN 210857123 U CN210857123 U CN 210857123U
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Abstract
The utility model discloses a trash device and diversion engineering trash rack system. The trash rack device comprises a main cable and a floating body arranged on the main cable, wherein two ends of the main cable are connected with an end floating box provided with a roller support, the main cable is directly or indirectly connected with a net rack structure, and a trash rack net is arranged on the net rack structure; the height of the trash rack is larger than the height from the water inlet bottom plate to the water surface. The utility model provides a lead water or the power generation engineering water inlet trash rack filth to pile up in a large number, blockked up the problem of trash rack.
Description
Technical Field
The utility model relates to a block dirty device, especially relate to a set up and intercept the device of blocking dirty of surface of water floater and suspended solid under water before diversion engineering water inlet.
Background
In our country, a large amount of dirt is accumulated in most hydropower stations, particularly in front of a trash rack at a water inlet of a riverbed radial flow type hydropower station. The existence of the dirt not only increases the head loss of the water inlet of the power station, but also seriously interferes the normal operation of the generator set, influences the power generation benefit, particularly in the flood period, has huge dirt cleaning pressure of the power station, and often causes the phenomenon that the generator set cannot run at full load because the dirt blocks the dirt blocking grid. To solve this problem, many hydroelectric power stations have a trash rack in front of the trash rack to intercept the dirt and prevent the dirt from accumulating in front of the trash rack.
The reservoir dirt is divided into water surface floaters and underwater suspended matters according to the positions, most of the dirt blocking the trash rack is the underwater suspended matters, the sources of the suspended matters can be divided into two types, and one type is formed by settlement of the floaters in front of the trash rack after long-term soaking; the other type of the floating substance is suspended in water before entering a water inlet of the power station, the quantity ratio of the two types of the suspended substances has a large relation with the geographical environment and the time and season of the power station, and according to investigation, the two types of the suspended substances have large influence on the blockage of the trash rack of the power station, so that the interception of the floating substances on the water surface and the suspended substances under the water is the key for preventing the trash from blocking the trash rack.
At present, the trash rack in operation in domestic operation mostly has 0.5 m-0.8 m above the water surface along the vertical interception range, 0.8 m-2.0 m underwater, the main intercepted dirt is water surface floating objects, and compared with the water depth of dozens of meters and hundreds of meters before the water inlet of a power station, the interception amount of underwater suspended matters is very small and can be almost ignored.
According to investigation, after the trash rack of some power stations is put into production, although the effect of intercepting water surface floaters is good, and a plurality of floaters are accumulated before the trash rack, the trash rack at the water inlet still has a blocking phenomenon, and the blocking objects mainly comprise trunks, aquatic weeds, large plastic bags and the like which are suspended in water, and the blocking objects are not only suspended caused by power generation water flow, but also deposited by the floaters before the trash rack is discharged. Therefore, the existing trash rack is called as a floating rack and cannot completely intercept the dirt entering the power generation water inlet of the power station, and a brand-new trash rack capable of intercepting the floating objects on the water surface and the suspended objects underwater needs to be designed and researched urgently in the industry.
SUMMERY OF THE UTILITY MODEL
In order to solve diversion or power generation engineering water inlet trash rack filth and pile up in a large number, block up the problem of trash rack, the utility model aims at providing a trash device, this trash device can adapt to reservoir water level change automatically, intercepts the surface of water and floats filth and the filth that suspends under water comprehensively, prevents that the filth from getting into the engineering water inlet.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is:
a trash device comprises a main cable and a floating body arranged on the main cable, and is structurally characterized in that two ends of the main cable are connected with an end floating box provided with a roller support, the main cable is directly or indirectly connected with a net rack structure, and a trash rack is arranged on the net rack structure; the height of the trash rack is larger than the height from the water inlet bottom plate to the water surface.
The following is the further improved technical proposal of the utility model:
the floating body comprises a plurality of small floating barrels and a plurality of large floating barrels; at least one small buoy is arranged between two adjacent large buoys.
The main cable is made of a steel wire rope or a fiber rope, and the small buoy and the large buoy are made of steel or plastic.
The main cable is connected with the bottoms of the large buoy and the small buoy through the hooping ring.
The net rack structure comprises a plurality of vertical cables which are vertically arranged, and underwater anchor points which are fixed at the bottom ends of the vertical cables; and the top of the longitudinal cable is connected with the trash rack along the line from the bottom of the trash rack.
The end buoyancy tanks are arranged in the corresponding end guide grooves; the end buoyancy tanks are horizontally constrained in the end guide channels, and the supporting rollers of the end buoyancy tanks can roll vertically along the end guide channels.
Based on the same invention concept, the utility model also provides a diversion project trash holding system, which comprises the trash holding device which is arranged perpendicular to the water flow direction; the net bottom elevation of the trash rack is lower than the water inlet bottom plate elevation of the diversion project.
From this, arrange this trash device before the water inlet, under the effect of loads such as diversion rivers, trash device forms a big trash rack before the water inlet, and string rack and surface of water flotation pontoon combined action intercept water inlet bottom plate to the suspended solid and the floater of the surface of water, realize the three-dimensional interception of full aspect of water inlet filth. The buoy and the buoyancy tank provide buoyancy for the trash blocking device, the load borne by the trash blocking net bag is transmitted to the main cable and the underwater anchor point through the longitudinal cable, and the load of the main cable is transmitted to the end guide grooves at the two ends through the end buoyancy tank.
Preferably, the diversion project is a hydropower station.
The present invention is further described below.
The utility model discloses a trash device can intercept surface of water floater and suspended solid under water, mainly comprises middle part little flotation pontoon, the big flotation pontoon in middle part, main cable, tip flotation tank, tip guide slot, trash rack, indulge cable, submarine anchor point etc.. The structure is characterized in that: the main cable is alternately connected with a plurality of small middle buoys and large buoys along the line, two ends of the main cable are connected with end buoyancy tanks provided with roller bearings, and the end buoyancy tanks are arranged in the end guide grooves. The bottom of the middle large float is connected with the top end of the longitudinal cable, and the bottom end of the longitudinal cable is connected with the underwater anchor point. The above components form a stressed net rack structure of the trash rack. In order to intercept dirt, a dirt blocking net is arranged on the net rack structure, the top of the dirt blocking net is hung at the bottoms of the small middle buoy and the large buoy along the line, and the top of the longitudinal cable is tied up and connected with the dirt blocking net along the line from the top of the longitudinal cable to the bottom of the dirt blocking net. The height of the trash rack is required to meet the condition that the height of the rack bottom is lower than that of the water inlet bottom plate under each operation condition of the trash rack.
Arrange this trash device before the water inlet, under the effect of loads such as diversion rivers, trash device forms a big trash rack before the water inlet, and string bag and surface of water flotation pontoon combined action intercept water inlet bottom plate to the suspended solid and the floater of the surface of water, realize the three-dimensional interception of full aspect of water inlet filth. The buoy and the buoyancy tank provide buoyancy for the trash blocking device, the load borne by the trash blocking net bag is transmitted to the main cable and the underwater anchor point through the longitudinal cable, and the load of the main cable is transmitted to the end guide grooves at the two ends through the end buoyancy tank.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses simple structure, reliable, the atress is clear, has solved the current problem of blocking the unable abundant interception suspended solid under water of dirt row, has satisfied the functional requirement of blocking dirt comprehensively well. When the reservoir water level changes, the end part floating box supporting roller can vertically roll along the guide groove, so that the whole trash blocking device can automatically adapt to the water level change.
The utility model discloses can intercept the filth that gets into the engineering water inlet comprehensively, surface of water floater and suspended solid under water before the abundant interception water inlet can effectively avoid the water inlet trash rack to block up, improves the fail safe nature of power station unit operation, and can adapt to reservoir water level change automatically, and operation, maintenance convenience, newly-built engineering and production engineering all can be suitable for, have fine spreading value.
Drawings
Fig. 1 is a top view of an embodiment of the present invention (the direction of the arrows is the direction of water flow);
FIG. 2 is a cross-sectional view A-A of FIG. 1;
in the figure:
1-a middle large buoy; 2-a small middle buoy; 3-main rope; 4-end buoyancy tanks; 5-end guide slots; 6-trash rack; 7-longitudinal cable; 8-a water bottom anchor point; 9-water bottom.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.
A trash device for intercepting floating objects on the water surface and suspended objects under water is mainly composed of a plurality of middle large buoys 1, a plurality of middle small buoys 2, a main cable 3, two end buoyancy tanks 4, end guide grooves 5, trash nets 6, longitudinal cables 7, underwater anchor points 8 and the like, and is shown in figures 1 and 2.
The main cable 3 is made of steel wire ropes or fiber ropes and the like, is connected to the bottoms of the middle large buoys 1 and the middle small buoys 2 through hooping rings, and is made of steel or plastic. The two ends of the main cable are connected with the end part buoyancy tanks 4, the buoyancy tanks are made of steel and made of metal, are provided with roller wheel supports, are horizontally constrained in the end part guide grooves 5 at the two ends, and can vertically roll along the guide grooves. The bottom of the middle large buoy is connected with the top end of a longitudinal cable 7, the bottom end of the longitudinal cable is connected with an underwater anchor point 8, the longitudinal cable is made of steel wire ropes or fiber ropes and the like, the underwater anchor point is a ground anchor or a gravity anchor arranged at the water bottom 9, and the ground anchor or the gravity anchor forms a stressed grid structure of the trash holding device. In order to intercept dirt, a trash rack 6 is arranged on the grid structure, the top of the trash rack is hung at the bottoms of the small middle buoy and the large middle buoy along the line, and the top of the longitudinal cable is tied up and connected with the trash rack along the line from the bottom of the trash rack to the bottom of the trash rack.
Arrange the trash device of this embodiment before the water inlet, under the effect of loads such as diversion rivers, trash device forms a big trash rack before the water inlet, and string bag and surface of water flotation pontoon combined action intercept water inlet bottom plate to the suspended solid and the floater of the surface of water, realize the three-dimensional interception of full aspect of water inlet filth. And when reservoir water level changes, tip flotation tank supporting roller can vertically roll along the guide slot for whole trash device can adapt to the water level change automatically.
The above-mentioned embodiments are illustrative and should not be construed as limiting the scope of the invention, which is defined by the appended claims, and all modifications of the equivalent forms of the invention which are obvious to those skilled in the art after reading the present invention.
Claims (8)
1. A trash holding device comprises a main rope (3) and a floating body arranged on the main rope (3), and is characterized in that two ends of the main rope (3) are connected with an end buoyancy tank (4) provided with a roller wheel support, a net frame structure is directly or indirectly connected to the main rope (3), and a trash holding net (6) is arranged on the net frame structure; the height of the trash rack (6) is larger than the height from the water inlet bottom plate to the water surface.
2. The trash holding device of claim 1, wherein the buoyant bodies comprise a plurality of small buoyant bodies and a plurality of large buoyant bodies; at least one small buoy is arranged between two adjacent large buoys.
3. The trash holding device of claim 2, wherein the main cables (3) are made of steel wire or fiber rope, and the small and large buoys are made of steel or plastic.
4. The barrier as claimed in claim 2, wherein the main lines (3) are connected to the bottom of the large (1) and small (2) pontoons by a hoop.
5. The trash holding device of any one of claims 1-4 wherein the grid structure includes a plurality of vertical cables (7) arranged vertically, a bottom anchor point (8) secured to the bottom ends of the vertical cables (7); the top of the longitudinal cable (7) is connected with the trash rack (6) along the line from the bottom of the trash rack (6).
6. The trash holding device of any one of claims 1-4 wherein the end pontoons (4) are mounted in respective end channels (5); the end buoyancy tank (4) is horizontally constrained in the end guide groove (5), and the supporting roller of the end buoyancy tank (4) can vertically roll along the end guide groove (5).
7. A water diversion works trash holding system comprising the trash holding apparatus of any one of claims 1-6 disposed perpendicular to the direction of water flow; the net bottom elevation of the trash rack (6) is lower than the elevation of a water inlet bottom plate of a water diversion project.
8. The pilot project trash holding system of claim 7 wherein the pilot project is a hydropower station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921719586.1U CN210857123U (en) | 2019-10-14 | 2019-10-14 | Trash device and diversion engineering trash rack system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921719586.1U CN210857123U (en) | 2019-10-14 | 2019-10-14 | Trash device and diversion engineering trash rack system |
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| CN210857123U true CN210857123U (en) | 2020-06-26 |
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| CN201921719586.1U Active CN210857123U (en) | 2019-10-14 | 2019-10-14 | Trash device and diversion engineering trash rack system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111705759A (en) * | 2020-07-08 | 2020-09-25 | 大连理工大学 | Device for large variation of reservoir water level, intercepting sewage, guaranteeing flood discharge and generating safety |
| CN111926783A (en) * | 2020-07-07 | 2020-11-13 | 中南林业科技大学 | Floating type sewage blocking and discharging device for hydropower station |
| CN113026695A (en) * | 2021-03-31 | 2021-06-25 | 杭州裳言裳语贸易有限公司 | Automatic clearance blocks dirty floating raft |
-
2019
- 2019-10-14 CN CN201921719586.1U patent/CN210857123U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926783A (en) * | 2020-07-07 | 2020-11-13 | 中南林业科技大学 | Floating type sewage blocking and discharging device for hydropower station |
| CN111705759A (en) * | 2020-07-08 | 2020-09-25 | 大连理工大学 | Device for large variation of reservoir water level, intercepting sewage, guaranteeing flood discharge and generating safety |
| CN113026695A (en) * | 2021-03-31 | 2021-06-25 | 杭州裳言裳语贸易有限公司 | Automatic clearance blocks dirty floating raft |
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