CN212388498U - Device for intercepting dirt, guaranteeing flood discharge and generating safety of reservoir in severe cold area - Google Patents
Device for intercepting dirt, guaranteeing flood discharge and generating safety of reservoir in severe cold area Download PDFInfo
- Publication number
- CN212388498U CN212388498U CN202021379046.6U CN202021379046U CN212388498U CN 212388498 U CN212388498 U CN 212388498U CN 202021379046 U CN202021379046 U CN 202021379046U CN 212388498 U CN212388498 U CN 212388498U
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- flood discharge
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000007667 floating Methods 0.000 claims abstract description 18
- 238000009423 ventilation Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000010248 power generation Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 238000007710 freezing Methods 0.000 claims description 2
- 230000008014 freezing Effects 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000010813 municipal solid waste Substances 0.000 abstract description 33
- 230000006378 damage Effects 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 3
- 239000005413 snowmelt Substances 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 208000034699 Vitreous floaters Diseases 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model provides a device that is used for severe cold area reservoir interception filth, guarantees flood discharge and electricity generation safety, includes the floating box for connect the high tensile cable of floating box, arrange the air vent of the air vent pipeline and the air vent pipeline interval arrangement of the floating box left and right sides in, air vent pipeline is connected with the floating box through the fixed lath, and the air compressor machine is connected with air vent pipeline, is blowing the bubble through the air vent for produce between box and the ice sheet and not freeze the surface of water. The device passes through the bubble disturbance water method, produces the unfrozen surface of water around the box, has avoided the box to freeze and has swelled the extrusion and destroy, also avoided when ice and snow melt in spring, the damage that causes trash device with the ice sheet that the box freezes together collapses suddenly, guaranteed trash device function normal play, effectual interception filth can prevent during the flood discharge that the filth from blockking up the flood discharge passageway, avoid taking place the harm of flood dam to avoid the filth to get into the hydraulic turbine, influence the safety of electricity generation.
Description
Technical Field
The utility model relates to a device that is used for severe cold area reservoir interception filth, guarantees flood discharge and electricity generation safety.
Background
When the reservoir is built in a severe cold area with uneven runoff, the reservoir water level is usually large in amplitude, and when more dirt is brought to the upstream of the reservoir, a dirt blocking device is usually required to be arranged. The general existence of floaters has potential safety hazards to engineering operation, and the influence of the floaters on a power generation and water diversion system is particularly serious. A water diversion water inlet of a power station is generally provided with a trash rack for intercepting floating dirt in a reservoir area, but the trash rack is often blocked due to large amount of the dirt, so that a water head is reduced and the output of a unit is reduced, thereby influencing the power generation benefit; the trash rack structure can be damaged if the weight is heavy, and the operation safety of the unit is endangered if the weight is heavy. The shutdown maintenance of the trash rack or the cleaning of the hydropower station is troublesome work which is labor-consuming and time-consuming. In practical engineering, most hydropower stations are provided with a trash rack at a water inlet and a trash rack facility at the front edge of the water inlet.
For the power generation diversion system, the arrangement of the trash blocking device has the following practical benefits:
1) the water head benefit is improved, the water head of about 0.3m can be improved by adopting the inlet and tail water pressure difference meter for comparison and calculation.
2) The machine is free from shutdown and load reduction pollution cleaning loss, a pollution blocking device is not used, the machine is completely shutdown for 3-5 times due to too much garbage at a water inlet of the machine set every year, and the loss can be avoided after the floating blocking device is installed.
3) The benefits generated by the downtime during flood are reduced, and the downtime caused by flood is reduced, so that the generated energy is improved.
4) The efficiency of the safe operation of the unit, after the trash blocking device is installed, the vibration of the unit is reduced because no garbage enters the flow channel of the unit, the cooling water of the unit is free of blocking phenomenon, the temperature is reduced, and the long-period safe and stable operation of the unit is effectively guaranteed.
5) Comprehensive benefits, after the trash blocking device is installed, foreign garbage at the water inlet of the machine set runner is reduced, the trash cleaning amount of the trash rack at the water inlet of the machine set runner is greatly reduced, the large investment of manpower and material resources in trash cleaning work in the flood season is reduced, and secondary pollution of land and urban roads caused by garbage transfer is avoided.
In severe cold areas, due to cold winter, reservoirs are often frozen and frozen, so that a box body of the trash holding device bears a large frost heaving force, the large frost heaving force often causes the box body to be damaged, the trash holding device cannot float up and down along with the change of water level, and the trash holding effect is lost; in addition, when ice and snow melt in spring, the ice layer and the box body are frozen together, when the ice layer collapses suddenly, huge impact force is generated, the safety of the cable body, the box body and the anchoring columns at two sides of the trash holding device is endangered, the trash holding device is damaged, the trash holding function is difficult to play, the maintenance is needed every year, labor and time are wasted, and the great waste of manpower and financial resources is caused. It is therefore desirable to have new trash holding devices that avoid the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem, the utility model provides a device that is used for severe cold area reservoir interception filth, guarantee flood discharge and electricity generation safety, the device is through setting up vent line and gas hole on the box, make trash device can go up and down along with the water level variation, the interception filth, can utilize the air compressor machine to pass through pipeline and gas hole bubbling disturbance water again winter, the people is for causing a not frozen surface of water, frost heaving destruction and the ice and snow in spring of trash device box itself melt, the huge impact force of the production of collapsing suddenly with the ice sheet that the box freezes together is to the destruction of whole trash device.
In order to solve the above problem, the utility model discloses the technical scheme who adopts is: the vertical columns are arranged on the left bank and the right bank in front of the reservoir dam and are connected with anchor cables on the mountain through the cross rods, the intercepting nets are arranged between the vertical columns, floating balls are arranged on the nets and are located on the underwater parts, the intercepting nets and the vertical columns are connected through lantern rings with the balls, and the intercepting nets can freely slide up and down on the vertical columns along with the change of the water level, so that the purpose of intercepting water surface dirt is achieved, and the whole structure is completed.
The utility model has the advantages that: through adopting a device that is used for severe cold area reservoir interception filth, guarantees flood discharge and electricity generation safety, the device has guaranteed that trash device function normal performance, and effectual interception filth can prevent that the filth from blockking up the flood discharge passageway during the flood discharge, avoids taking place the harm that the flood overflows the dam to avoid the filth to get into the hydraulic turbine, influence electricity generation safety.
Drawings
Fig. 1 is a structural diagram of a device for intercepting dirt, ensuring flood discharge and generating safety of a reservoir in a severe cold region.
Detailed Description
The invention will be described in further detail with reference to the following drawings and embodiments:
as shown in fig. 1, a device for intercepting dirt, ensuring flood discharge and generating safety of a reservoir in a severe cold region is characterized by comprising a floating box body 1, a high-strength steel cable 2 for connecting the floating box body 1, vent pipelines 3 arranged at the left side and the right side of the floating box body 1 and air nozzles 4 arranged at intervals on the vent pipelines 3; the ventilation pipeline 3 is connected with the floating box body 1 through the fixing strip 5, the air compressor 7 is connected with the ventilation pipeline 3, and bubbles are blown at the air jet 4, so that a non-freezing water surface 8 is generated between the box body 1 and the ice layer 6. The device passes through the bubble disturbance water method, produces the unfrozen surface of water around the box, has avoided the box to freeze and has swelled the extrusion and destroy, also avoided when ice and snow melt in spring, the damage that causes trash device with the ice sheet that the box freezes together collapses suddenly, guaranteed trash device function normal play, effectual interception filth can prevent during the flood discharge that the filth from blockking up the flood discharge passageway, avoid taking place the harm of flood dam to avoid the filth to get into the hydraulic turbine, influence the safety of electricity generation.
The floating box body 1 can be but not limited to polyethylene plastic, and can be but not limited to round and have a diameter
The high-strength steel cable 2 is formed by weaving high-strength steel wires with the strength not less than 1500 Mpa.
The depth of the air jet 4 on the water surface is more than or equal to 3.0m, and the spacing distance on the vent pipeline 3 is less than or equal to 6 m.
The vent pipeline 3 is made of seamless stainless steel pipe with diameter
In the present embodiment, the construction is performed according to the following steps: according to the construction of the traditional trash holding device, the ventilation pipeline and the air nozzles are installed on two sides of the box body, the ventilation pipeline is connected with the air compressor, air is supplied to the air blowing holes through the air compressor, air with certain pressure is discharged through the air blowing holes, water is disturbed, a non-frozen water surface is generated around the box body of the trash holding device, and the whole construction is completed.
The above-mentioned examples are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the scope of the present invention should not be limited by the examples, i.e. all equivalent changes or modifications made by the spirit of the present invention are still within the scope of the present invention.
Claims (8)
1. A device for intercepting dirt and ensuring flood discharge and power generation safety of a reservoir in a severe cold area is characterized by comprising a floating box body (1), a high-strength steel cable (2) for connecting the floating box body (1), vent pipelines (3) arranged on the left side and the right side of the floating box body (1) and air nozzles (4) arranged on the vent pipelines (3) at intervals; the air pipeline (3) is connected with the floating box body (1) through the fixing battens (5), the air compressor (7) is connected with the air pipeline (3), and air bubbles are blown at the air jet ports (4) so that the non-freezing water surface (8) is generated between the floating box body (1) and the ice layer (6).
2. The device for intercepting dirt, ensuring flood discharge and generating safety of the reservoir in the severe cold region as claimed in claim 1, wherein the floating box body (1) is made of polyethylene plastic, is circular in shape, and has a diameter phi of more than or equal to 50 cm.
3. The device for intercepting dirt, ensuring flood discharge and generating safety of the reservoir in the severe cold region as claimed in claim 1 or 2, wherein the high-strength steel cable (2) is woven by high-strength steel wires with the strength of more than or equal to 1500 Mpa.
4. The device for intercepting dirt, ensuring flood discharge and generating safety of the reservoir in the severe cold region is characterized in that the air jet ports (4) are arranged on the water surface at a depth of more than or equal to 3.0m, and the spacing distance on the ventilation pipeline (3) is less than or equal to 6 m.
5. The device for intercepting dirt, ensuring flood discharge and generating safety of the reservoir in the severe cold region as claimed in claim 3, wherein the depth of the air jet (4) on the water surface is more than or equal to 3.0m, and the spacing distance on the ventilation pipeline (3) is less than or equal to 6 m.
6. The device for intercepting dirt, ensuring flood discharge and generating safety of the reservoir in the severe cold region according to the claim 1, 2 or 5, characterized in that the air vent pipeline (3) is made of seamless stainless steel pipe with diameter phi larger than or equal to 5 cm.
7. The device for intercepting dirt, ensuring flood discharge and generating safety of the reservoir in the severe cold region as claimed in claim 3, wherein the ventilation pipeline (3) is made of seamless stainless steel pipe with diameter phi larger than or equal to 5 cm.
8. The device for intercepting dirt, ensuring flood discharge and generating safety of the reservoir in the severe cold region as claimed in claim 4, wherein the ventilation pipeline (3) is made of seamless stainless steel pipe with diameter phi larger than or equal to 5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021379046.6U CN212388498U (en) | 2020-07-14 | 2020-07-14 | Device for intercepting dirt, guaranteeing flood discharge and generating safety of reservoir in severe cold area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021379046.6U CN212388498U (en) | 2020-07-14 | 2020-07-14 | Device for intercepting dirt, guaranteeing flood discharge and generating safety of reservoir in severe cold area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212388498U true CN212388498U (en) | 2021-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021379046.6U Active CN212388498U (en) | 2020-07-14 | 2020-07-14 | Device for intercepting dirt, guaranteeing flood discharge and generating safety of reservoir in severe cold area |
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| CN (1) | CN212388498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676920A (en) * | 2020-07-14 | 2020-09-18 | 大连理工大学 | Device for intercepting dirt, guaranteeing flood discharge and generating safety of reservoir in severe cold area |
-
2020
- 2020-07-14 CN CN202021379046.6U patent/CN212388498U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676920A (en) * | 2020-07-14 | 2020-09-18 | 大连理工大学 | Device for intercepting dirt, guaranteeing flood discharge and generating safety of reservoir in severe cold area |
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