CN216839318U - Water filling valve device with opposite-flushing energy dissipation and shock absorption functions - Google Patents
Water filling valve device with opposite-flushing energy dissipation and shock absorption functions Download PDFInfo
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- CN216839318U CN216839318U CN202220367819.1U CN202220367819U CN216839318U CN 216839318 U CN216839318 U CN 216839318U CN 202220367819 U CN202220367819 U CN 202220367819U CN 216839318 U CN216839318 U CN 216839318U
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- valve device
- filling valve
- energy dissipation
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Abstract
The utility model discloses a water filling valve device with offset energy dissipation shock-absorbing function. The water filling valve device is obliquely and symmetrically arranged on the top section of the gate, and the included angle alpha between the central line of the water filling valve device and the central line of the gate slot ranges from 30 degrees to 60 degrees. The utility model discloses fill water valve device has changed the direction of valve pipe delivery port rivers at gate top festival slope symmetrical arrangement, and the rivers offset of controlling unloads the ability each other, has solved the impact harm that high-pressure high-speed rivers produced low reaches civil engineering structure or downstream gate.
Description
Technical Field
The utility model belongs to the technical field of hydraulic and hydroelectric engineering, concretely relates to water filling valve device with offset energy dissipation shock-absorbing function.
Background
In water conservancy and hydropower engineering, in order to simplify hydraulic structures and reduce civil engineering construction, water filling valves are mostly adopted for medium and high-level gates to fill water and level pressure. In long-term use, the existing water filling valve device has several problems, one is that the water flow pressure at the water outlet of the water filling valve is high, and the impact physical damage is very easy to be generated on other gates or retaining walls and other hydraulic buildings behind the gate, so that the safe operation of the dam is influenced; secondly, high-speed water flow easily forms a local vacuum environment in the water filling valve pipe, and can cause the overflowing vibration of a valve plate structure and even a gate, so that the defects of reduction of the anti-vibration capability and leakage of the water filling valve and the like caused by damage or looseness of a guide block, a fastening bolt and the like are caused, and the damage aging speed of the water filling valve is increased.
According to the analysis of the accident reason of the plane gate, the plane gate is damaged in the opening and closing process of the gate, the severe vibration is often accompanied, the resonance is easily induced, the fatigue damage of the structure of the gate is easily caused by the vibration of the gate, and the gate instability is even induced under a certain condition.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a water filling valve device with hedging energy dissipation and shock absorption functions.
The utility model adopts the technical proposal that: the water filling valve device with the opposite-flushing energy-dissipation shock-absorption function is obliquely and symmetrically arranged on a top section of a gate, and an included angle alpha between the central line of the water filling valve device and the central line of a gate slot ranges from 30 degrees to 60 degrees.
In the scheme, two water flows which almost have equal speed and come out of the water filling valve device (water outlet pipe section) are impacted and collided to form opposite impact energy dissipation; meanwhile, the automatic hanging and releasing beam linkage of the door machine is ensured, the pressure difference signal synthesis of the upstream side and the downstream side of the side door body can be monitored in real time, and the opening and closing of the water filling valve are ensured to be controllable.
The water filling valve device comprises a pipe body and a valve body, wherein the pipe body comprises a water inlet pipe section and a water outlet pipe section, the water inlet pipe section and the water outlet pipe section are respectively and vertically connected with two connecting ends of the lower end of the valve body through a flange plate and a bolt nut, a gate valve for opening and closing is arranged inside the valve body, the gate valve is connected with the lower end of the internal thread assembling rod end knuckle bearing through a connecting shaft, a balancing weight is arranged on the connecting shaft, the connecting end at the upper end of the valve body can be in contact connection with the lower end of the internal thread assembling rod end knuckle bearing to form a closed cavity, and the upper end of the internal thread assembling rod end knuckle bearing is connected with a connecting plate.
In the scheme, in the water filling process, the water filling valve is in a fully-opened state under the action of the driving device connected with the connecting plate, and the horn mouth air supplementing hole effectively avoids overcurrent vibration and damage or looseness of a guide device, a fastening bolt and the like of a valve plate structure caused by water flow, so that the anti-vibration capability of the water filling valve is enhanced. Under the action of gravity of the balancing weight, the water filling valve is in a closed state.
In a further preferred structure, the connecting plate is provided with a connecting hole for installing a driving device for driving the connecting plate to ascend or descend.
In a further preferred structure, the water outlet pipe section is provided with a bell mouth section, and the bell mouth section is positioned at the joint of the bell mouth section and the flange plate and used for air supplement.
In a further preferable structure, the bell-mouth section is provided with a plurality of bell mouths, and the aperture of each bell mouth is phi 13-phi 19. The open area is ensured not to exceed 45 percent of the bell mouth section.
In a further preferred structure, one side of the pipe body is provided with a trash rack.
In a further preferable structure, the pipe diameter of the water inlet pipe section is 295-305 mm, and the pipe diameter of the water outlet pipe section is 495-505 mm.
In a further preferable structure, the pipe diameter of the water outlet pipe section is larger than that of the water inlet pipe section.
In a further preferable structure, the pipe body is made of Q355C, the valve body is DN300 PN10 in model number, and the valve body is made of nodular cast iron.
In a further preferred structure, the internal thread assembly rod end joint bearing is SI35 ES.
In a further preferred structure, the water filling valve device is limited with two sides of the gate lifting lug through the guide block.
The utility model discloses fill water valve device verifies in the gate update transformation of power station, has both guaranteed the maintenance gate concora crush of this power station, has also avoided high-pressure rivers direct action in hydraulic structure, has weakened the vibrations that overflow of filling water valve simultaneously, compares with prior art and has following obvious advantage:
the water filling valve devices are obliquely and symmetrically arranged on the top section of the gate, so that the direction of water flow at the water outlet of the valve pipe is changed, the opposite impact of left and right water flows is mutually relieved, and the impact damage of high-pressure and high-speed water flows to a downstream civil structure or a downstream gate is solved;
two, the valve pipe diameter at current water filling valve both ends is the same, is unfavorable for slowing down the speed of rivers, arouses easily that overflowing of valve plate structure gate even shakes, and the utility model discloses the water filling valve device sets up the horn mouth tonifying qi on the water filling valve outlet pipe, has effectively solved overflowing vibrations of water filling valve plate structure, prolongs its life.
Drawings
FIG. 1 is a schematic view of a prior art fill valve arrangement;
FIG. 2 is a schematic view of the arrangement position of the present invention;
FIG. 3 is a schematic diagram of the arrangement of the opposed energy dissipation of the present invention;
fig. 4 is a plan view of the present invention;
FIG. 5 is an axial view of the present invention;
fig. 6 is a schematic view of the air supply at the bell mouth section of the present invention.
In the figure, 1-a pipe body (1-1-a bell mouth section), 2-a flange plate, 3-a valve body, 4-a connecting shaft, 5-a balancing weight, 6-an internal thread assembly rod end joint bearing, 7-a connecting plate (7-1-a connecting hole), 8-a guide block, 9-a bolt and a nut and 10-a trash rack.
Detailed Description
The invention will be further described in detail with reference to the drawings and the following detailed description, which are provided for the purpose of clearly understanding the invention and are not intended to limit the invention.
A set of maintenance gate and gantry crane automatic hanging and releasing beam at a water inlet of a certain hydropower station is put into operation in 1993 and is operated for 27 years so far, and the gate and opening and closing equipment need to be updated under the condition of not changing the existing metal structure and civil engineering. In the transformation process of the gate flat pressure, the method that the existing water filling valve is arranged (see an area A in figure 1) is considered, water flow at the water outlet of the water filling valve can be directly sprayed to other gates or retaining walls and other hydraulic buildings behind the maintenance gate, and the requirements of energy dissipation and shock absorption cannot be met.
As shown in fig. 2, the water filling valve device of the present invention is disposed at the top section of the gate in an inclined symmetrical arrangement, and the included angle α between the central line of the water filling valve device and the central line of the gate slot is in the range of 30 ° to 60 °.
Fig. 3 shows the opposite-flushing energy dissipation arrangement of the water filling valve of the maintenance gate of a certain hydropower station, the included angle alpha between the inclination of two sets of water filling valve devices and the central line of a gate slot is 40 degrees, two water flows are intersected at the position 1.1m behind a gate, and the opposite-flushing energy dissipation is realized, so that the water flows do not form disastrous interference on a downstream civil structure or a downstream gate.
So that two water flows with almost equal speed from the water filling valve device (water outlet pipe section, shown in figure 3) are impacted and collided to form opposite impact energy dissipation; meanwhile, the automatic hanging and releasing beam linkage of the door machine is ensured, the pressure difference signal synthesis of the upstream side and the downstream side of the side door body can be monitored in real time, and the opening and closing of the water filling valve are ensured to be controllable.
As shown in fig. 4 and 5, the water filling valve device includes a pipe body 1 and a valve body 3, the pipe body 1 includes a water inlet pipe section and a water outlet pipe section, the water inlet pipe section and the water outlet pipe section are respectively and vertically connected with two connecting ends at the lower end of the valve body 3 through a flange 2 and a bolt nut 9, a gate valve for opening and closing is arranged inside the valve body 3, the gate valve is connected with the lower end of an internal thread assembling rod end joint bearing 6 through a connecting shaft 4, a balancing weight 5 is arranged on the connecting shaft 4, the connecting end at the upper end of the valve body 3 can be contacted and connected with the lower end of the internal thread assembling rod end joint bearing 6 to form a closed cavity, and the upper end of the internal thread assembling rod end joint bearing 6 is connected with a connecting plate 7.
In the water filling process, the water filling valve is in a fully open state under the action of the driving device connected with the connecting plate 7, and as shown in a combined figure 6, the bell-mouth air supplementing hole effectively avoids overflowing vibration of a valve plate structure and damages or looseness of a guide device, a fastening bolt and the like caused by water flow, and the anti-vibration capability of the water filling valve is enhanced. Under the action of the gravity of the balancing weight 5, the water filling valve is in a closed state.
The connecting plate 7 is provided with a connecting hole 7-1 for installing a driving device for driving the connecting plate 7 to ascend or descend.
The water outlet pipe section is provided with a bell mouth section 1-1 for air supplement.
Referring to fig. 6, a plurality of bellmouths are formed on the bellmouth section 1-1, and the aperture of each bellmouth is phi 13-phi 19, preferably phi 16. The open area is ensured not to exceed 45 percent of the bell mouth section.
And a trash rack 10 is arranged on one side of the pipe body 1.
The pipe diameter of water inlet pipe section is 295 mm-305 mm, the pipe diameter of play water pipe section is 495 mm-505 mm. Preferably, the pipe diameter of the water inlet pipe section is 300mm, and the pipe diameter of the water outlet pipe section is 500 mm.
The material of the pipe body 1 is Q355C, the model number of the valve body 3 is DN300 PN10, and the material is nodular cast iron.
The type of the rod end joint bearing 6 assembled by the internal threads is SI35 ES.
The water filling valve device is limited with two sides of the gate lifting lug through the guide block 8.
The utility model discloses fill the water valve setting and in gate top festival, the automatic break beam linkage of hanging of AND gate machine, in the stroke scope of filling the water valve, hang the break beam automatically and rise in advance, fill the water valve linkage and open, fill water to a body downstream side from a body upper reaches side. After the designed pressure difference is reached, the water filling process is finished, and the gate crane is matched with the automatic hanging and releasing beam to implement gate lifting operation.
The utility model discloses arrange the slope of filling valve device, set up the horn mouth tonifying qi on filling valve, can effectively solve the gate vibrations that prior art arouses, the part is leaked etc. not enough. In the project of power station gate transformation to having operated certain number of years, the utility model has the advantages of investment province, technical risk are little, the construction is simple.
Those not described in detail in this specification are well within the skill of the art.
Claims (10)
1. The utility model provides a fill water valve device with offset energy dissipation shock-absorbing function which characterized in that: the water filling valve device is obliquely and symmetrically arranged on the top section of the gate, and the included angle alpha between the central line of the water filling valve device and the central line of the gate slot ranges from 30 degrees to 60 degrees.
2. The water filling valve device with the opposite energy dissipation and shock absorption functions as claimed in claim 1, wherein: fill water valve device and include body (1) and valve body (3), body (1) is including the pipeline section of intaking and the pipeline section of going out, the pipeline section of intaking and the pipeline section of going out pass through ring flange (2) and bolt nut (9) perpendicular connection with two links of valve body (3) lower extreme respectively, the inside gate valve that is equipped with the switching of valve body (3), the gate valve passes through connecting axle (4) and is connected with internal thread equipment rod end joint bearing (6) lower extreme, be equipped with balancing weight (5) on connecting axle (4), valve body (3) upper end link can contact with internal thread equipment rod end joint bearing (6) lower extreme and be connected formation closed cavity, internal thread equipment rod end joint bearing (6) upper end is connected with connecting plate (7).
3. The water filling valve device with the opposite energy dissipation and shock absorption functions as claimed in claim 2, wherein: the connecting plate (7) is provided with a connecting hole (7-1) for installing a driving device for driving the connecting plate (7) to ascend or descend.
4. The water filling valve device with the opposite energy dissipation and shock absorption functions as claimed in claim 2, wherein: the water outlet pipe section is provided with a bell mouth section (1-1).
5. The water filling valve device with the opposite energy dissipation and shock absorption functions as claimed in claim 4, wherein: the horn mouth section (1-1) is provided with a plurality of horn mouths, and the aperture of each horn mouth is phi 13-phi 19.
6. The water filling valve device with the opposite energy dissipation and shock absorption functions as claimed in claim 2, wherein: a trash bar (10) is arranged on one side of the pipe body (1).
7. The water filling valve device with the opposite energy dissipation and shock absorption functions as claimed in claim 2, wherein: the pipe diameter of water inlet pipe section is 295 mm-305 mm, the pipe diameter of play water pipe section is 495 mm-505 mm.
8. The water filling valve device with the opposite energy dissipation and shock absorption functions as claimed in claim 2, wherein: the valve body (1) is made of Q355C, the valve body (3) is DN300 PN10 in model number, and the valve body is made of nodular cast iron.
9. The water filling valve device with the opposite energy dissipation and shock absorption functions as claimed in claim 2, wherein: the type of the rod end joint bearing (6) assembled by the internal threads is SI35 ES.
10. The water filling valve device with the opposite energy dissipation and shock absorption functions as claimed in claim 1, wherein: the water filling valve device is limited with two sides of the gate lifting lug through a guide block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220367819.1U CN216839318U (en) | 2022-02-23 | 2022-02-23 | Water filling valve device with opposite-flushing energy dissipation and shock absorption functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220367819.1U CN216839318U (en) | 2022-02-23 | 2022-02-23 | Water filling valve device with opposite-flushing energy dissipation and shock absorption functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216839318U true CN216839318U (en) | 2022-06-28 |
Family
ID=82091085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220367819.1U Active CN216839318U (en) | 2022-02-23 | 2022-02-23 | Water filling valve device with opposite-flushing energy dissipation and shock absorption functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216839318U (en) |
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2022
- 2022-02-23 CN CN202220367819.1U patent/CN216839318U/en active Active
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