CN108413122A - A kind of water hammer abatement valve, water hammer abatement pipeline and pipeline water hammer-resistant method - Google Patents
A kind of water hammer abatement valve, water hammer abatement pipeline and pipeline water hammer-resistant method Download PDFInfo
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- CN108413122A CN108413122A CN201810068632.XA CN201810068632A CN108413122A CN 108413122 A CN108413122 A CN 108413122A CN 201810068632 A CN201810068632 A CN 201810068632A CN 108413122 A CN108413122 A CN 108413122A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 199
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010992 reflux Methods 0.000 claims abstract description 28
- 230000007423 decrease Effects 0.000 claims description 3
- FWQHNLCNFPYBCA-UHFFFAOYSA-N fluoran Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11OC(=O)C2=CC=CC=C21 FWQHNLCNFPYBCA-UHFFFAOYSA-N 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/055—Valves therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a kind of water hammer abatement valve, water hammer abatement pipeline and pipeline water hammer-resistant methods.The water hammer cuts down valve, including：Valve body equipped with inlet and outlet, spool is equipped in valve body, the water hammer abatement valve further includes the single-rod piston cylinder controlled by outer signals, the piston rod of single-rod piston cylinder is connect with the spool, the outer signals include that the water pump being equipped in the pipeline of water hammer abatement valve, valve are turned on and off signal, when shutdown signal occurs in water downstream, spool is pushed down the water outlet of valve body and cuts down valve to close the water hammer by control single-rod piston cylinder.The present invention can reduce backwater and cut down the impact of valve or even whole system to water hammer and can realize that the impact energy of reverse reflux consumes, and the present invention effectively reduces the harm of water hammer effect so that pipeline and its attachment safe operation.
Description
Technical field
The present invention relates to a kind of water hammers to cut down valve, relates in particular to a kind of water hammer abatement valve, water hammer abatement pipeline and pipe
Road water hammer-resistant method.
Background technology
Water hammer is also known as water attack.The liquid flowed in pressure conduit, for some reason flow velocity occur suddenly change (valve
Close suddenly, water pump stops suddenly, opens and closes guide vane etc. suddenly), due to the inertia of liquid, pressure is caused drastically to increase or reduce
Alternately change, i.e., pressure wave, this phenomenon are known as water hammer.Since the inner wall of pipeline is smooth, water flowing is freely.When open
Valve is closed suddenly or water pump stops suddenly, and follow-up flow under the action of inertia, continues to flow, after stopping flowing, pipeline
Reverse reflux can be generated prodigious impact force and water pressure, and generate destruction and make by interior water to water pump, valve, pipeline at this time
With since pipeline is smooth, flow circuit above procedure of the water in pipeline could for a long time stop flow circuit, here it is waterpower
Water hammer effect in.Water hammer effect has great destructiveness：Pressure is excessively high, will cause the rupture of pipe, conversely, pressure mistake
Collapsing that is low and can leading to pipe, can also damage valve and water pump etc..
Invention content
The technical problem to be solved by the present invention is to：It one kind is provided can reduce backwater and valve or even whole is cut down to water hammer
The impact of a system and can realize reverse reflux impact energy consumption water hammer abatement valve, water hammer abatement pipeline and pipeline waterproof
Hammer method, the present invention effectively reduce the harm of water hammer effect so that pipeline and its attachment safe operation.
In order to solve the above technical problems, following technical solution is respectively adopted in the present invention：
A kind of water hammer of the present invention cuts down valve, including：Valve body equipped with inlet and outlet is equipped with spool in valve body,
The water hammer abatement valve further includes the single-rod piston cylinder controlled by outer signals, and the piston rod of single-rod piston cylinder connects with the spool
It connects, the outer signals include that the water pump being equipped in the pipeline of water hammer abatement valve, valve are turned on and off signal, when coming
When swimming out of existing shutdown signal under water, spool is pushed down the water outlet of valve body and is cut down with closing the water hammer by control single-rod piston cylinder
Valve.
A kind of water hammer of the present invention cuts down pipeline, includes the dynamical element and control element connected by water pipe, in power
The downstream of element is equipped with water hammer abatement valve and water hammer abatement valve is adjacent with the water outlet of dynamical element, and the water hammer cuts down valve packet
It includes：Valve body equipped with inlet and outlet is equipped with spool in valve body, and the water hammer abatement valve further includes by outer signals control
The single-rod piston cylinder of system, the piston rod of single-rod piston cylinder are connect with the spool, and the outer signals include being equipped with the water hammer
Cut down the water pump in the pipeline of valve, valve is turned on and off signal, when shutdown signal occurs in water downstream, control single pole is lived
Spool is pushed down the water outlet of valve body and cuts down valve to close the water hammer by plug cylinder.
A kind of pipeline water hammer-resistant method of the present invention, the pipeline include the dynamical element connected by water pipe and control first
Part,
It is equipped with water hammer abatement valve in the downstream of dynamical element and water hammer abatement valve is adjacent with the water outlet of dynamical element, the water hammer
Cutting down valve includes：Valve body equipped with inlet and outlet is equipped with spool in valve body, spool is connected to single-rod piston cylinder,
The single-rod piston cylinder is controlled by outer signals,
The outer signals include that the water pump being equipped in the pipeline of water hammer abatement valve, valve are turned on and off signal, when
When the shutdown signal of water pump or valve occurs in water downstream, spool is pushed down the water outlet of valve body to close by control single-rod piston cylinder
Water hammer cuts down valve, and the lee side of the spool is reflected back the downstream reverse reflux arrived first is multi-direction and reversed is returned with subsequent
Stream forms aspectant collision and lateral collision, is reached with the reverse reflux reached in advance reflected the multi-direction impact later stage
Reverse reflux, to realize the energy expenditure of reverse reflux and cut down impact.
Compared with prior art, technical scheme of the present invention has the following advantages that：
Existing hydraulic pipeline arrangement, general that check-valves, gate valve are arranged simultaneously, pipeline water flows back when check-valves is for preventing termination of pumping,
Gate valve or butterfly valve are used to blind off a line when starting mode of pump, because requiring pipeline that must shut when centrifugation pump startup.When detecting
After termination of pumping, hydraulic cylinder oil inlet, hydraulic drive water hammer cuts down the spool movement of valve, is automatically closed with realizing, thoroughly blocks flow,
Existing pipeline can be simplified, after installing the water hammer abatement valve, while cutting down water hammer, instead of the work of check-valves and gate valve
With simplified pipeline arrangement.
1. the present invention realizes that eliminating the arbitrary controllable of water hammer energy and effective solution valve shut-in time in real time asks
Topic.When shutdown signal occurs in water downstream, single-rod piston cylinder starts, and the piston rod of single-rod piston cylinder pushes water hammer abatement valve
Spool closes water hammer and cuts down valve.
When water pump, when being turned on and off of valve, reverse reflux will occur for the water in pipeline and directly impact is connected to list
The spool of the water hammer abatement valve of bar piston cylinder, the energy of reverse reflux is consumed using the flowing of hydraulic oil in single-rod piston cylinder in real time
Amount, avoids impact of the reverse reflux to water pump, valve, pipeline.In addition, the present invention by adjust single-rod piston cylinder into oil flow rate
Go the shut-in time of control water hammer abatement valve.
2. the lee side of spool is arranged to ladder by the present invention, which is the annular gradually declined from center to periphery
Ladder can reduce the impact that backwater cuts down water hammer valve or even whole system, meanwhile, it is multi-direction anti-using being formed by
Jet stream collides follow-up reverse reflux, to realize that the impact energy of reverse reflux consumes.
As Fig. 1 reaches and touch the partial reflux flow quilt of lee side in advance after lee side is using stepped step design
The stepped step of ring ladder rebounds back multi-directionly, by the multi-direction backwater reached in advance to go back that rebounds with after
Phase reach and touch lee side another part backwater formed it is multi-direction collision and form turbulent flow, to consume backwater
Impact energy；
It is noted that the backwater being repelled back there are 360 degree of rebounds, also there is non-360 degree laterally to rebound, non-360 degree
Lateral impact occurs for lateral rebound backwater and the backwater that the later stage reaches and non-frontal head-on collision, is returned This reduces both follow-up
Flowing water stream makes the backwater being repelled in the inside of subsequent reflow flow and subsequent reflow flow water hammer abatement valve impact
Generation is laterally hit back and forth, to further enhance the impact of performance of backwater and reduce the impact to valve.In this way, work as because
When the reasons that switch off the pump etc. suddenly lead to that flow is flow backwards in pipeline, the high-drag of back side will make the flow velocity of water in pipeline drastically
Decline, the kinetic energy of water is consumed in pipeline, while reducing the amount that pipeline kinetic energy is converted to pressure energy, to fundamentally solve
Certainly damage of the water hammer to pipeline.
Compared with plane obstructing surface, due to face spool right end step type obstructing surface when flow flows back, the direction of flow will
It changes, in this process, flow will lose a large amount of kinetic energy, if using integral planar as obstructing surface, to flow
Resistance it is maximum, but the reaction force that valve body is subject to is also maximum, is unfavorable for the service life of valve, using stepped obstructing surface
Water flow dynamic energy can effectively be consumed and generate big reaction force.
3. the characteristics of pipeline water hammer-resistant method of the present invention, is：Using ring ladder, to reaching in advance and touching the back of the body
The partial reflux flow of stream interface implements multi-direction reflection, the backwater of arrival in advance being reflected back and subsequent backwater
The multi-direction collision including aspectant collision and lateral collision is formed, realizes and disappears inside the reverse flow of reverse reflux energy
It consumes and cuts down the impact to valve, system, in this course, with reference to Fig. 8, ring ladder main function is exactly to change recirculation water
Backwater is reflected tapered contrajet by the direction of stream, especially ladder turning.
4. the present invention provides a kind of methods reducing pipeline water hammer：Close to exit of pump position, this hair is set
Valve is cut down in the bright water attack with hydraulic pushing device, on follow-up pipeline, a fixed water hammer is arranged every a distance and disappears
Subtract valve, so that the smooth tube that entire pipeline is no longer resistance very little can reduce rapidly flow when pipeline aqueous reflux
Flow velocity cuts down water flow dynamic energy.
Be pipeline due to occurring water hammer it is approximate smooth tube, therefore, it is necessary to fixed water is added on pipeline
Hammer abatement valve so that pipeline no longer approximate smooth tube in reflux, the arranged for interval of fixed water hammer abatement valve will over long distances
The water flow dynamic energy of conveyance conduit is shared, and impact force and increase reduction flow rate of water flow that single valve body is born can be reduced
Effect, the closing process of cooperation water attack abatement valve, flow slowly reduces, and when water hammer abatement valve is thoroughly closed, flow is also almost
It is static, water hammer is solved the problems, such as from principle.
Description of the drawings
Fig. 1 is the A-A structural schematic diagrams of an embodiment of the present invention.
Fig. 2 is the right view of embodiment illustrated in fig. 1.
Fig. 3 is left valve barrel structural schematic diagram.
Fig. 4 is the structural schematic diagram that fixed water hammer cuts down valve.
Fig. 5 is left valve core structure front view.
Fig. 6 is left valve core structure left view.
Fig. 7 is a kind of pipe-line system schematic diagram.
When Fig. 8 is that flow is flow backwards by valve, schematic diagram is interfered with each other between flow.
Fig. 9 is hydraulic control system schematic diagram.
In figure：Left valve barrel 1, left spool 2, right valve barrel 3, right spool 4, gasket 5, cylinder body 101, piston rod 102, cylinder cap
103, supporting rod 104, oil pipe 105, intake pool 6, water inlet line 7, water pump 8, water hammer abatement valve 9, outlet conduit 10, fixed water
Hammer abatement valve 11, the first sliding groove 13, second sliding slot 14, motor 15, oil pump 16, mailbox 17, filter 18, is adjusted discharge bay 12
Pressurized overflow valve 19, pressure gauge 20, solenoid directional control valve 21, single-rod piston cylinder 22 of the present invention.
Specific implementation mode
Embodiment 1
A kind of water hammer abatement valve, including：Valve body equipped with inlet and outlet, is equipped with spool in valve body, and the water hammer disappears
It further includes the single-rod piston cylinder controlled by outer signals to subtract valve, and the piston rod of single-rod piston cylinder is connect with the spool, described outer
Sector signal includes that the water pump being equipped in the pipeline of water hammer abatement valve, valve are turned on and off signal, is swum out of when under water
When existing shutdown signal, spool is pushed down the water outlet of valve body and cuts down valve to close the water hammer by control single-rod piston cylinder.
The open and close of common hydraulic control system control valve may be used in the present invention, and motor 15 drives oil pump 16
Work, hydraulic oil is aspirated from mailbox 17, enters solenoid directional control valve 21 through filter 18, in order to monitor oil circuit pressure, is equipped with pressure
Power table 20, oil pressure is excessively high in order to prevent, and equipped with pressure adjustment relief valve 19, the high pressure oil of solenoid directional control valve one end and pumping connects, and one
End is connect with fuel tank, and for controlling moving left and right for single-rod piston cylinder 22, when needing to move to left, the right end of single-rod piston cylinder 22 is
High pressure oil, left end reflux fuel tank, when needing to move to right, the left end of single-rod piston cylinder 22 is high pressure oil, right end reflux fuel tank.
In the present embodiment, the lee side of spool is the ring ladder gradually declined from center to periphery；Spool meets stream
Face is the side of the imitative cone formed using the axle center of spool as rotary shaft, by busbar of camber line.The valve body includes being connected with each other
Left valve barrel 1 and right valve barrel 3, the water inlet be located on left valve barrel 1, the water outlet is located on right valve barrel 3；The spool packet
The left spool 2 and right spool 4 for including interconnection are equipped with empty for accommodating single-rod piston cylinder in left spool 2 and right spool 4
Chamber offers the first sliding groove 13, the single-rod piston cylinder packet in the direction of motion along spool of left spool 2 and right spool 4
It sets the cylinder body 101 of single-rod piston in including and is connected to the cylinder cap 103 of cylinder body, piston rod 102 and the right spool 4 of single-rod piston connect
It connects, 2 oil pipes 105 is equipped on cylinder body 101 and the fuel feeding for single-rod piston cylinder and oil return, the oil pipe 105 pass through first
Sliding slot 13 is connected to valve body and is used to support single-rod piston cylinder.It is equipped with supporting rod 104 between valve body and single-rod piston cylinder and props up
The both ends of strut 104 are separately connected valve body with single-rod piston cylinder and for supporting single-rod piston cylinder, in left spool 2 and right spool
Second sliding slot 14 is offered in 4 direction of motion along spool and the supporting rod 104 passes through second sliding slot 14.
When assembling, by flanged joint, left spool is packed into left valve barrel from left end for left valve barrel and right valve barrel, and right spool is from right end
It is packed into left valve barrel.Spool is connect by hydraulic axis with the hydraulic cylinder in left valve barrel, and realizes movement.Increased by the oil pipe on the left side
Pressure drives piston rod to move right, and spool is moved to right end, can realize and seal with gasket 5, realize the effect of sealing；It is logical
The oil pipe supercharging for crossing the right, drives piston rod to be moved to the left, valve is opened.Left and right spool is equipped with the groove of evacuation piston rod,
Fig. 5 is the structural schematic diagram of left spool.
The upstream face of left spool is set as streamlined, when flow proper flow, resistance very little.The back side of right spool is arranged
For annular step ladder type, prodigious resistance is caused to the water of reflux, quickly cuts down water flow dynamic energy.
Embodiment 2
A kind of water hammer abatement pipeline, includes the dynamical element and control element connected by water pipe 6, is equipped in the downstream of dynamical element
Water hammer cuts down valve 8 and water hammer abatement valve is adjacent with the water outlet of dynamical element, and the water hammer abatement valve includes：Equipped with water inlet and
The valve body of water outlet is equipped with spool in valve body, and the water hammer abatement valve further includes the single-rod piston cylinder controlled by outer signals,
The piston rod of single-rod piston cylinder is connect with the spool, and the outer signals include being equipped in the pipeline of water hammer abatement valve
Water pump, valve are turned on and off signal, and when shutdown signal occurs in water downstream, spool is pushed down valve by control single-rod piston cylinder
The water outlet of body cuts down valve to close the water hammer.
In the present embodiment, the lee side of spool is the ring ladder gradually declined from center to periphery；Dynamical element is
Water pump 7, is arranged a fixed water hammer abatement valve on follow-up pipeline every a distance, and the fixed water hammer cuts down valve packet
The valve body equipped with inlet and outlet is included, be equipped in valve body is with the mutually fixed spool of valve body, the fluoran stream surface of the spool
The side of the imitative cone formed using the axle center of spool as rotary shaft, by busbar of camber line, lee side be from center to periphery gradually
The ring ladder of decline.
Embodiment 3
A kind of pipeline water hammer-resistant method, the pipeline includes the dynamical element and control element connected by water pipe 6, in dynamical element
Downstream be equipped with water hammer abatement valve 8 and water hammer abatement valve is adjacent with the water outlet of dynamical element, water hammer abatement valve includes：If
The valve body for having inlet and outlet is equipped with spool in valve body, spool is connected to single-rod piston cylinder, the single-rod piston cylinder
It is controlled by outer signals,
The outer signals include that the water pump being equipped in the pipeline of water hammer abatement valve, valve are turned on and off signal, when
When the shutdown signal of water pump or valve occurs in water downstream, spool is pushed down the water outlet of valve body to close by control single-rod piston cylinder
Water hammer cuts down valve, and the lee side of the spool is reflected back the downstream reverse reflux arrived first is multi-direction and reversed is returned with subsequent
Stream forms aspectant collision and lateral collision, is reached with the reverse reflux reached in advance reflected the multi-direction impact later stage
Reverse reflux, to realize the energy expenditure of reverse reflux and cut down impact.The lee side of the spool is selected as from center to week
The ring ladder that side gradually declines.
When flow reverse flow, due to the stepped obstructing surface of valve so that the loss of flow is very big, and kinetic energy disappears rapidly
Subtract, be equivalent to that pipeline is no longer smooth, namely reduces the pressure of water hammer from water hammer generational verctor.Spool by hydraulic drive,
Moving along conduit axis may be implemented, can realize unlatching, close.For example, a kind of water hammer abatement valve is applied to
In the pipeline of water pump, when water pump is shut down suddenly, all kinds of check-valves that use at this stage may close rapidly one section, remaining
A bit of the to close at a slow speed but total time is generally individually smaller than 1 minute, and a kind of water hammer is used to cut down valve, can be arbitrary
The time that control valve is closed.
The basic principles, main features and advantages of the invention have been shown and described above.Those skilled in the art should
Understand the present invention not limited by above-mentioned specific embodiment, the description in above-mentioned specific embodiment and specification is intended merely into one
Step illustrates the principle of the present invention, and without departing from the spirit and scope of the present invention, the present invention also has various change and changes
Into these changes and improvements all fall within the protetion scope of the claimed invention.The scope of protection of present invention is by claim
Book and its equivalent thereof.
Claims (10)
1. a kind of water hammer cuts down valve, including：Valve body equipped with inlet and outlet, is equipped with spool in valve body, and feature exists
In the water hammer abatement valve further includes the single-rod piston cylinder controlled by outer signals, the piston rod of single-rod piston cylinder and the valve
Core connects, and the outer signals include that the water pump being equipped in the pipeline of water hammer abatement valve, valve are turned on and off signal,
When shutdown signal occurs in water downstream, spool is pushed down the water outlet of valve body and is disappeared with closing the water hammer by control single-rod piston cylinder
Subtract valve.
2. water hammer according to claim 1 cuts down valve, which is characterized in that the lee side of spool be from center to periphery gradually
The ring ladder of decline.
3. water hammer according to claim 2 cuts down valve, which is characterized in that it is rotation that the fluoran stream surface of spool, which is with the axle center of spool,
The side of shaft, the imitative cone formed as busbar using camber line.
4. water hammer according to claim 1,2 or 3 cuts down valve, which is characterized in that the valve body includes the left side being connected with each other
Valve body (1) and right valve barrel (3), the water inlet are located on left valve barrel (1), and the water outlet is located on right valve barrel (3)；The valve
Core includes the left spool (2) being connected with each other and right spool (4), is equipped in left spool (2) and right spool (4) for accommodating
Single-rod piston cylinder cavity offers the first sliding groove in the direction of motion along spool of left spool (2) and right spool (4)
（13）, the single-rod piston cylinder include in set the cylinder body (101) of single-rod piston and be connected to the cylinder cap (103) of cylinder body, single pole live
The piston rod of plug（102）It is connect with right spool (4), 2 oil pipes is equipped on cylinder body (101)（105）And it is used for single-rod piston cylinder
Fuel feeding and oil return, the oil pipe（105）Across the first sliding groove（13）It is connected to valve body and is used to support single-rod piston cylinder.
5. water hammer according to claim 4 cuts down valve, which is characterized in that be equipped with support between valve body and single-rod piston cylinder
The both ends of bar (104) and supporting rod (104) are separately connected valve body with single-rod piston cylinder and for supporting single-rod piston cylinder, in left valve
Second sliding slot is offered in the direction of motion along spool of core (2) and right spool (4)（14）And the supporting rod (104) passes through
Second sliding slot（14）.
6. a kind of water hammer cuts down pipeline, including by water pipe（6）The dynamical element and control element of connection, which is characterized in that dynamic
The downstream of power element is equipped with water hammer and cuts down valve（8）And water hammer abatement valve is adjacent with the water outlet of dynamical element, the water hammer abatement
Valve includes：Valve body equipped with inlet and outlet is equipped with spool in valve body, and the water hammer abatement valve further includes being believed by the external world
The single-rod piston cylinder of number control, the piston rod of single-rod piston cylinder connect with the spool, and the outer signals include equipped with described in
Water pump, valve in the pipeline of water hammer abatement valve are turned on and off signal, and when shutdown signal occurs in water downstream, control is single
Spool is pushed down the water outlet of valve body and cuts down valve to close the water hammer by bar piston cylinder.
7. water hammer according to claim 6 cuts down pipeline, which is characterized in that the lee side of spool be from center to periphery by
Walk the ring ladder declined.
8. water hammer according to claim 6 cuts down pipeline, which is characterized in that dynamical element is water pump（7）, in follow-up pipeline
On one fixed water hammer be set every a distance cut down valve（9）, the fixed water hammer abatement valve includes being equipped with water inlet
With the valve body of water outlet, in valve body be equipped with the mutually fixed spool of valve body, the fluoran stream surface of the spool is the axle center with spool
The side of the imitative cone formed for rotary shaft, by busbar of camber line, lee side are the annular steps gradually declined from center to periphery
Ladder.
9. a kind of pipeline water hammer-resistant method, the pipeline include by water pipe（6）The dynamical element and control element of connection, feature
It is,
It is equipped with water hammer in the downstream of dynamical element and cuts down valve（8）And water hammer abatement valve is adjacent with the water outlet of dynamical element, it is described
Water hammer cuts down valve：Valve body equipped with inlet and outlet is equipped with spool in valve body, spool is connected to single-rod piston
Cylinder, the single-rod piston cylinder are controlled by outer signals,
The outer signals include that the water pump being equipped in the pipeline of water hammer abatement valve, valve are turned on and off signal, when
When the shutdown signal of water pump or valve occurs in water downstream, spool is pushed down the water outlet of valve body to close by control single-rod piston cylinder
Water hammer cuts down valve, and the lee side of the spool is reflected back the downstream reverse reflux arrived first is multi-direction and reversed is returned with subsequent
Stream forms aspectant collision and lateral collision, is reached with the reverse reflux reached in advance reflected the multi-direction impact later stage
Reverse reflux, to realize the energy expenditure of reverse reflux and cut down impact.
10. pipeline water hammer-resistant method according to claim 9, which is characterized in that the lee side of the spool be selected as by
The ring ladder that center gradually declines to periphery.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810068632.XA CN108413122A (en) | 2018-01-24 | 2018-01-24 | A kind of water hammer abatement valve, water hammer abatement pipeline and pipeline water hammer-resistant method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810068632.XA CN108413122A (en) | 2018-01-24 | 2018-01-24 | A kind of water hammer abatement valve, water hammer abatement pipeline and pipeline water hammer-resistant method |
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| CN108413122A true CN108413122A (en) | 2018-08-17 |
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| CN201810068632.XA Pending CN108413122A (en) | 2018-01-24 | 2018-01-24 | A kind of water hammer abatement valve, water hammer abatement pipeline and pipeline water hammer-resistant method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309924A (en) * | 2021-06-04 | 2021-08-27 | 靳玉辉 | Energy-consuming type water hammer effect eliminator |
| CN114576368A (en) * | 2022-03-25 | 2022-06-03 | 安徽皖控自动化仪表有限公司 | High-reliability anti-compression water-closing pipeline for torpedo launching tube liquid level switch |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2083667U (en) * | 1990-08-30 | 1991-08-28 | 王江 | Slide type slowly closing check valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309924A (en) * | 2021-06-04 | 2021-08-27 | 靳玉辉 | Energy-consuming type water hammer effect eliminator |
| CN113309924B (en) * | 2021-06-04 | 2022-11-22 | 国网山东省电力公司烟台市蓬莱区供电公司 | Energy-consuming type water hammer effect eliminator |
| CN114576368A (en) * | 2022-03-25 | 2022-06-03 | 安徽皖控自动化仪表有限公司 | High-reliability anti-compression water-closing pipeline for torpedo launching tube liquid level switch |
| CN114576368B (en) * | 2022-03-25 | 2023-08-22 | 安徽皖控自动化仪表有限公司 | High-reliability compression-resistant closed water pipeline for torpedo transmitting tube liquid level switch |
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