CN203498809U - Water hammer protection device for siphon-type spillway pipeline - Google Patents
Water hammer protection device for siphon-type spillway pipeline Download PDFInfo
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- CN203498809U CN203498809U CN201320420687.5U CN201320420687U CN203498809U CN 203498809 U CN203498809 U CN 203498809U CN 201320420687 U CN201320420687 U CN 201320420687U CN 203498809 U CN203498809 U CN 203498809U
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- water hammer
- spillway
- water tank
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Abstract
The utility model discloses a water hammer protection device for a siphon-type spillway pipeline, which comprises a relatively sealed cylindrical water storage tank or also comprises a ventilation pipeline, wherein one side of the water storage tank is provided with two water filling holes of which the axes are in parallel; the ventilation pipeline transversely runs through the water storage tank; and an inlet of the ventilation pipeline and inlets of the water filling holes are in the same direction and are positioned in the same plane or arc surface. By fixing the water hammer protection device at the top of the spillway pipeline and communicating the water filling holes and the inlet of the ventilation pipeline into the spillway pipeline, an effective impedance-type or differential-type water hammer effect eliminating device is formed, impact caused by pressure fluctuation water flow is retarded, safety of the wall of the spillway pipeline is ensured and the service life of the spillway pipeline is prolonged. The water hammer protection device has a simple integral structure, is flexible to install, is convenient to process, has good durability and stable performance and is suitable to install and use on various siphon-type spillway pipelines.
Description
Technical field
The utility model relates to a kind of water hammer protective device, particularly a kind of for eliminating the water hammer protective device of the excessive big vast pipeline water hammer effect of hydraulic engineering hydrocone type, belongs to hydraulic engineering technical field.
Background technology
Siphon spillways use more in small hydraulic project, and it utilizes siphon principle to carry out flood discharge and draining, reach the effect that water level is automatically adjusted and controlled, and have effectively guaranteed the safety and reliability of hydraulic engineering.The excessive big vast pipeline of hydrocone type is a kind of closed flood spillway, it is laid on weir crest place, when stock's water level reaches certain elevation, water flooding the air vent of excessive big vast pipeline, current mix with air through weir crest, gradually the air in curved tube is taken out of, made to produce vacuum in curved tube, siphonage occurs and automatic drainage.Hydrocone type is overflow big vast ducted current when full siphon state current downflow, flow velocity changes gradually along with the change of stock's water level, follow-up current are under effect of inertia, the fluctuation meeting that pressure is huge causes compared with havoc the excessive big vast pipeline of hydrocone type, brings serious harm to safety and the durability of the big vast pipeline that overflows.Therefore, design a kind of water hammer protective device of eliminating water hammer effect, just become the utility model and want the matter of utmost importance solving.
Summary of the invention
In view of above-mentioned existing situation and deficiency, the utility model aims to provide a kind ofly can effectively eliminate or slow down the hydrocone type water hammer effect of big vast pipeline in full siphon flood discharge process that overflow, to reduce or to avoid the destruction of fluctuation of pressure to the big vast pipeline that overflows, to reach, extend the hydrocone type big vast pipeline object in application life of overflowing.
The utility model is achieved through the following technical solutions:
A water hammer protective device for the excessive big vast pipeline of hydrocone type, comprises a cylindrical water tank for sealing relatively, and a side of water tank is provided with the limbers that two axis are parallel to each other.After limbers is communicated with excessive big vast pipe interior, utilize two limberss to the process of pouring water in water tank, form the protection of impedance type water hammer, slow down the impact of pressure oscillation to the big vast duct wall that overflows.
A water hammer protective device for the excessive big vast pipeline of hydrocone type, comprises cylindrical water tank and the air duct of sealing relatively, and a side of water tank is provided with the limbers that two axis are parallel to each other.Air duct is laterally through water tank, and the entrance of air duct and the entrance of limbers are in the same way and be positioned at same plane or arcwall face.Except utilizing two limberss pour water in water tank; this structure also can utilize air duct to carry out draining, exhaust; because the entrance of air duct and the entrance of limbers are in same plane, thus effective differential type water hammer protection can be formed, and then improve protection effect.
For ease of installing and using, in concrete technical scheme, two limberss can adopt horizontal mode along water tank axis direction, and the axis of limbers and the axis of water tank are perpendicular.Like this, both installed well limbers, can be used as again the top that supporting seat is fixedly connected on the big vast pipeline that overflows.
For ease of putting and form effective ventilation, drainage procedure; the entrance of air duct also can be located between two limberss, except forming differential water hammer protection, also can make limbers be evenly distributed; guarantee stability and the reliability of water hammer effect elimination process, improved the reasonability of structure distribution.
For effectively eliminating or slowing down the impact that pressure oscillation brings, in the design of water hammer protective device, the diameter of limbers is less than the diameter of water tank, so that limbers forms the process of effectively pouring water, produces impedance, slows down impact.
The beneficial effect of the water hammer protective device of the excessive big vast pipeline of a kind of hydrocone type described in the utility model comprises:
1, simple in structure, flexible for installation, easy to process;
2, durability is good, stable performance, reliable;
3, two kinds of protective devices both can be used alone, and also use capable of being combined even can be overlapped together more and be used;
4, less to environment and surrounding structure requirement, applicability is good.
Accompanying drawing explanation
Fig. 1 is partial structurtes sectional view of the present utility model;
Fig. 2 is the mounting structure schematic diagram of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, the water hammer protective device of the excessive big vast pipeline of a kind of hydrocone type described in the utility model, comprises cylindrical water tank 1 and the air duct 5 of sealing relatively.The sidewall of water tank 1 is provided with that two axis are parallel to each other and along the horizontal limbers 7 of water tank axis direction, the axis of the axis of limbers 7 and water tank 1 is perpendicular.Air duct 5 is laterally in water tank 1, and the entrance 6 of air duct 5 and the entrance of limbers 7 are in the same way and be positioned at same arcwall face.For improving the reasonability of structure distribution, air duct entrance 6 is corresponding between two limberss 7, thereby can form effective and stable differential type water hammer protection.And be to form effective impedance, the diameter of limbers 7 is much smaller than the diameter of water tank 1.
As shown in Figure 1 and Figure 2; during actual use; water hammer protective device described in this example is fixed on the bending section top of the excessive big vast pipeline 2 of hydrocone type; because two limberss 7 and air duct entrance 6 lay respectively in same arcwall face; therefore can easily two limberss 7 be connected with the bending section top of the big vast pipeline 2 that overflows respectively with air duct entrance 6; and with its internal communication, by the big vast pipeline 2 that overflows, outer to return to the big vast pipeline 2 that overflows interior near on the water surface of entrance in the outlet 4 of air duct.When having water hammer effect to occur, the current of immense pressure fluctuation are interior mobile at smooth excessive big vast pipeline 2, two limberss 7 of water hammer protective device can constantly be incorporated into press water in the water tank 1 of sealing, fluctuation hydraulic pressure is produced to hindrance function, slow down the surge pressure of current, simultaneously, air duct entrance 6 between two limberss 7 also can introducing portion pressure flow, and in air duct 5 is back to the big vast pipeline 2 that overflows, formation stops the differential type of pressure flow, coordinate the hindrance function of limbers 7 effectively to eliminate or slow down water hammer effect, guaranteed that flood spillway tube wall is not damaged, extended the application life of excessive big vast pipeline 2.
Above-mentioned water hammer protective device is arranged on the bending section top of the big vast pipeline that overflows, and it is a specific implementation process explanation in this example.Clearly, above-mentioned water hammer protective device also can be installed near the rectilinear end top in exit at excessive big vast pipeline, even a plurality of water hammer protective devices can be installed as required simultaneously, to improve protection effect.
Certainly; the water hammer protective device of the excessive big vast pipeline of a kind of hydrocone type of the present invention; also can only include a cylindrical water tank for sealing relatively; a side at water tank is provided with the limbers that two axis are parallel to each other, or along water tank axis direction horizontally and axis and perpendicular two limberss of water tank axis.By water tank being arranged on to the diverse location place at the big vast pipeline top of overflowing, utilize two limberss to be communicated with excessive big vast pipe interior, form impedance type water hammer effect cancellation element, complete the hindrance function to the big vast manifold pressure fluctuating flow that overflows, avoid the infringement of water hammer effect to the big vast duct wall that overflows, its operating principle and said process are close, do not repeat them here.
Claims (5)
1. a water hammer protective device for the excessive big vast pipeline of hydrocone type, is characterized in that, comprise the cylindrical water tank of a sealing, a side of described water tank is provided with the limbers that two axis are parallel to each other.
2. a water hammer protective device for the excessive big vast pipeline of hydrocone type, is characterized in that, comprise the cylindrical water tank of a sealing, a side of described water tank is provided with the limbers that two axis are parallel to each other; Also comprise an air duct, described air duct laterally runs through water tank, and the entrance of air duct and the entrance of limbers are in the same way and be positioned at same plane or arcwall face.
3. the water hammer protective device of the excessive big vast pipeline of a kind of hydrocone type according to claim 1 and 2, is characterized in that, described two limberss are horizontal along water tank axis direction, and the axis of limbers and the axis of water tank are perpendicular.
4. the water hammer protective device of the excessive big vast pipeline of a kind of hydrocone type according to claim 1 and 2, is characterized in that the diameter of described limbers is less than the diameter of water tank.
5. the water hammer protective device of the excessive big vast pipeline of a kind of hydrocone type according to claim 2, is characterized in that, the entrance of described air duct is between two limberss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320420687.5U CN203498809U (en) | 2013-07-16 | 2013-07-16 | Water hammer protection device for siphon-type spillway pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320420687.5U CN203498809U (en) | 2013-07-16 | 2013-07-16 | Water hammer protection device for siphon-type spillway pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203498809U true CN203498809U (en) | 2014-03-26 |
Family
ID=50329801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320420687.5U Expired - Fee Related CN203498809U (en) | 2013-07-16 | 2013-07-16 | Water hammer protection device for siphon-type spillway pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203498809U (en) |
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2013
- 2013-07-16 CN CN201320420687.5U patent/CN203498809U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20140716 |
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| EXPY | Termination of patent right or utility model |