CN206418476U - A kind of Waterpower type ship elevator valve system for possessing resistance to shock - Google Patents
A kind of Waterpower type ship elevator valve system for possessing resistance to shock Download PDFInfo
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- CN206418476U CN206418476U CN201621437260.6U CN201621437260U CN206418476U CN 206418476 U CN206418476 U CN 206418476U CN 201621437260 U CN201621437260 U CN 201621437260U CN 206418476 U CN206418476 U CN 206418476U
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Abstract
The utility model discloses a kind of Waterpower type ship elevator valve system for possessing resistance to shock, the means being combined by " pipeline build after space layout pattern+transformation valve of three valves of optimization ", originally three valves being arranged in juxtaposition positioned at identical elevation are changed into space triangle disposition arrangement, converge section with manifold after the antivibration body replacing valve with " cylinder " profile simultaneously, eliminate low pressure whirlpool area after valve, reduce fluctuation pressure, reduction flow velocity, so as to reach the purpose of antivibration.Verified by model test, the utility model can effectively reduce the vibration amplitude of the fluctuation pressure of current and pipeline side wall after valve, simplify manifold build after valve, ensure the safe operation of Waterpower type ship elevator water-carriage system valve.
Description
Technical field
The utility model is related to a kind of Waterpower type ship elevator valve system for possessing resistance to shock, particularly relates to a kind of answer
For the valve system of Waterpower type ship elevator " master two is auxiliary ", reduce its valve optimization vibrated under the conditions of high water head
Layout pattern and pipeline build.
Background technology
Waterpower type ship elevator controls the speed of service in ship railway carriage or compartment using water-delivery valve, water-delivery valve include a discharge coefficient compared with
Big main valve and the less auxiliary valve of two discharge coefficients, main valve are used to improve the speed of service in ship railway carriage or compartment, auxiliary valve for controlling ship railway carriage or compartment
Accurate docking, three valves are arranged in juxtaposition, and main valve is located at centre, and auxiliary valve is located at main valve both sides respectively, and front and rear utilization breeches pipe converges
Water-main road is bonded to, Fig. 1 is seen.
Because the head that Waterpower type ship elevator valve system is born is very big, valve system vibrates during engineering operation
Acutely, ship lift safe operation is had a strong impact on.
Found after model investigation is carried out to it, there is following vibration source：
1）Three strands of current of the three water-delivery valves output being arranged in juxtaposition are influenceed substantially, in manifold to converge by valve back elbow
Place forms " strip low pressure swirling water current ", and current tip converges area's reciprocating swing in breeches pipe, and fluidised form is extremely unstable." strip low pressure
Swirling water current " is to cause valve segment pipe low-frequency vibration main cause.
2）Under high water head effect, operationally, pipeline wall pressure fluctuations are violent after valve for main valve, auxiliary valve.
3）The cavitation of the valve area that crumbles and fall is attached at valve back vent inside pipe wall, causes valve and pipe vibration to aggravate, is to cause valve
Gate segment pipeline dither main cause.
Therefore, valve vibration is solved the problems, such as, manifold build after valve arrangement pattern and valve must be optimized and changed
Make, eliminate the fluctuation pressure of inner-walls of duct after the influence of " strip low pressure swirling water current ", reduction valve, and improve cavitation number, make pipe
Road side wall crumbles and fall area away from cavitation.
The content of the invention
Technical problem to be solved in the utility model is：For Waterpower type ship elevator valve system under the conditions of high water head
High vibration phenomenon, propose a kind of valve and pipeline configuration of optimization, reduce Waterpower type ship elevator valve system vibration amplitude,
Ensure Waterpower type ship elevator water-delivery valve system safety operation.
The utility model is specifically adopted the following technical scheme that：
A kind of Waterpower type ship elevator valve system for possessing resistance to shock, including Y-pipe and three before the valve of interconnection
Valve, it is characterised in that also including an antivibration body, three valves are in space triangle disposition solid arrangement, the antivibration body
One end connects the outlet of three valves, and the other end is directly connected with downstream technology main pipeline, and the area of passage of antivibration body is more than three
The total sectional area of individual valve.
Advantage of the present utility model is：
1）Three valves change former flow field structure in the layout pattern of space triangle disposition, while antivibration body is current after valve
Larger buffering area is provided, fluidised form after valve is significantly improved, " strip low pressure swirling water current " and its caused low frequency is eliminated
Vibration.
2）Three valves are relatively arranged in juxtaposition the vibration damping for more adapting to " circle " section in space triangle disposition layout pattern with elevation
Body.
3）Manifold is replaced using the larger antivibration body of area of passage, arteries and veins of the current to former breeches pipe inwall can be greatly lowered
Dynamic pressure amplitude.
4）Antivibration body side wall departs from bubble collapse area, cavitation is occurred inside water body, and valve and pipeline occur cavitation corrosion and broken
Probability reduction that is bad and inducing dither.
5）Antivibration physical efficiency reduces flow velocity, the overall anti-cavitation performance of water-delivery valve system is improved, especially in the big aperture of valve
When, substantially reduced using antivibration body late gate critical cavitation number, show that anti-cavitation ability is stronger.
6）Antivibration body overflow section product avoids the stress that square-section is produced at drift angle for the design of " circle "
Concentrate, be more beneficial for the structural stability of antidetonation body.
7）The resistance coefficient and discharge coefficient of valve system layout pattern and former Y-pipe build after optimization are basically identical,
Do not influence conveyance capacity.
Brief description of the drawings
Fig. 1 is former Waterpower type ship elevator " master two is auxiliary " valve and front and rear breeches pipe layout pattern；
Fig. 2 is the Waterpower type ship elevator valve system layout pattern of the utility model optimization design；
Fig. 3 is two kinds of build vibration amplitude comparison diagrams of the identical operating mode of embodiment one；
Fig. 4 is two kinds of build fluctuation pressure root mean square comparison diagrams of the identical operating mode of embodiment one.
Embodiment
Embodiment one
For the valve system of the auxiliary valve of one main valve of Waterpower type ship elevator two, the utility model optimizes the arranged type of three groups of valves
Formula, makes it be arranged in space triangle disposition, while cancelling valve back breeches pipe build, replaces with the antivibration with " circle " overflow section
Body.The utility model can improve fluidised form after valve, and buffering area is provided for current after valve, reduce the pressure fluctuation of pipeline after valve, improve
Valve system anti-cavitation performance, eliminates vibration source, plays antivibration effect.
As shown in Fig. 2 Waterpower type ship elevator valve system includes Y-pipe before valve, three valves being connected with Y-pipe before valve
Door（One main valve 1, two auxiliary valves 2）With an antivibration body 3.Antivibration body 3 is with three water inlets and a delivery port
Hollow structure, three water inlets are connected one to one with valve export, and delivery port is connected with downstream technology main pipeline.Three valves are in sky
Between triangle disposition solid arrangement, using space triangular type arrange, wherein main valve is above, two auxiliary valves respectively be located at main valve under
Square both sides.Antivibration body uses overflow section for the cylinder design of " circle ", and its sectional area is more than the total sectional area of three valves,
For 3 ~ 5 times of three valve total sectional areas.The length of antivibration body is about 3 times or so of water delivery main pipeline diameter.
Vibration characteristics is to such as Fig. 3 before and after transformation：After the utility model optimizing design scheme, main valve measuring point it is vertical to
Vibration amplitude is reduced to 2g by 10g, and horizontal direction vibration is also reduced to 1g from 3g, and effectiveness in vibration suppression is fairly obvious.
Pipeline measuring point pc5 pressure fluctuation root mean square maximums are after fluctuation pressure Character Comparison such as Fig. 4, breeches pipe build main valve
Top measuring point pc7 pressure fluctuations divide equally root maximum for 0.09m, 2.61m smaller than culvert sudden expansion after 2.7m, antivibration body main valve（Drop
It is low by more than 90%）.
In addition to the implementation, the utility model can also have other embodiment.It is all to use three valve spaces " product " word
The technical scheme of " circle " overflow section antivibration body is set up after shape solid layout pattern+valve, the utility model requirement is all fallen within
Protection domain.
Claims (5)
1. a kind of Waterpower type ship elevator valve system for possessing resistance to shock, including Y-pipe and three valves before the valve of interconnection
Door, it is characterised in that also including an antivibration body, three valves are in space triangle disposition solid arrangement, the antivibration body one
The outlet of three valves of end connection, the other end is directly connected with downstream technology main pipeline, and the area of passage of antivibration body is more than three
The total sectional area of valve.
2. a kind of Waterpower type ship elevator valve system for possessing resistance to shock as claimed in claim 1, it is characterised in that three
Valve includes a main valve and two auxiliary valves, and three valve relative positions are：Main valve is above, and two auxiliary valves are located at master respectively
Both sides below valve.
3. a kind of Waterpower type ship elevator valve system for possessing resistance to shock as claimed in claim 1, it is characterised in that described
Antivibration body is the hollow structure with three water inlets and a delivery port, and three water inlets are corresponding with three valve exports to be connected
Connect, delivery port is connected with downstream technology main pipeline.
4. a kind of Waterpower type ship elevator valve system for possessing resistance to shock as claimed in claim 1, it is characterised in that described
The overflow section of antivibration body is rounded.
5. a kind of Waterpower type ship elevator valve system for possessing resistance to shock as claimed in claim 1, it is characterised in that described
The area of passage of antivibration body is 3 ~ 5 times of three valve total sectional areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621437260.6U CN206418476U (en) | 2016-12-26 | 2016-12-26 | A kind of Waterpower type ship elevator valve system for possessing resistance to shock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621437260.6U CN206418476U (en) | 2016-12-26 | 2016-12-26 | A kind of Waterpower type ship elevator valve system for possessing resistance to shock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206418476U true CN206418476U (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621437260.6U Active CN206418476U (en) | 2016-12-26 | 2016-12-26 | A kind of Waterpower type ship elevator valve system for possessing resistance to shock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638534A (en) * | 2016-12-26 | 2017-05-10 | 水利部交通运输部国家能源局南京水利科学研究院 | Optimum design method of hydraulic ship lifter valve system with anti-vibration performance |
-
2016
- 2016-12-26 CN CN201621437260.6U patent/CN206418476U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638534A (en) * | 2016-12-26 | 2017-05-10 | 水利部交通运输部国家能源局南京水利科学研究院 | Optimum design method of hydraulic ship lifter valve system with anti-vibration performance |
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