CN106895183A - One kind regulation and control check-valves - Google Patents
One kind regulation and control check-valves Download PDFInfo
- Publication number
- CN106895183A CN106895183A CN201510951111.5A CN201510951111A CN106895183A CN 106895183 A CN106895183 A CN 106895183A CN 201510951111 A CN201510951111 A CN 201510951111A CN 106895183 A CN106895183 A CN 106895183A
- Authority
- CN
- China
- Prior art keywords
- chamber
- discharge orifice
- governor motion
- water hammer
- sealing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
Abstract
The invention discloses one kind regulation and control check-valves, governor motion is in the range of outlet plenum into step-type piston, governor motion middle part is provided with control chamber, the control chamber is provided with the first chamber and the second chamber, first chamber and the second chamber are connected with each other by throttling element, throttling element is provided with apertured partition, serve as restriction in the opening of apertured partition, water hammer self balancing device is that discharge orifice is opened up on valve plate, discharge orifice sealing plate fixed support is fixed with the surrounding of discharge orifice, the side of sealing plate is provided with the axis of guide, set to help between fixed support and sealing plate and close spring, spring is arranged on the axis of guide, opposite side is supported on fixed support.When governor motion is moved, low pressure is formed in the second chamber, rapidly realize the pressure balance between the first chamber and the second chamber, the few and durable valve of noise can be realized；If discharge orifice, water hammer current are released, effectively pre- water hammer-resistant is produced；Spring promotes sealing plate design, spring setting damping force effectively to absorb water hammer.
Description
Technical field
The invention belongs to water hammer-resistant check-valves technical field, it is related to a kind of valve plate to be provided with the check-valves of discharge orifice, check-valves is opened in particularly a kind of water hammer self-balancing rotation for being provided with spring assembly in valve plate discharge orifice.
Background technology
Check-valves (One-way valve) is also known as check valve or non-return valve, its effect is to prevent the medium in pipeline from flowing backwards, and check-valves belongs to automatic valve class, is mainly used on the pipeline of medium one-way flow, medium is only allowed to be flowed to a direction, to try to avert accidents.When import lateral pressure is less than outlet side, flap automatically closes passage in the presence of Fluid pressure and gravity itself, prevents fluid countercurrent current.Press flap motion mode different, check-valves is broadly divided into lift, swing type, butterfly and water conservancy control formula etc..Check-valves is such as closed too fast, and water attack may be caused in fluid pipeline, also known as water hammer, produces noise, even results in the damage of valve partses and water supply line.To avoid such case, the check-valves of pooling feature is can select when needing, to extend the shut-in time, what is used at present is pressure Slow Close measure, such as Tiny Drag Slow Shut Check Valves, micro-resistance slowly-closed butterfly swing check valve, fluid power Self force valve etc., including water conservancy control class check-valves, such as multifunctional water pump control valve, its processing mode to water hammer harm is to realize the slowly closing of valve plate by the forceful action of diaphragm by upper and lower chamber, still not no to water hammer prevention and receives function.Following problem occurs when pressure medium is applied to control chamber, i.e., piston is placed in vibration due to the reason manipulated with pressure medium, because the system that piston is rendered as vibration ability with spring assembly.This vibration is undesirable, because on the one hand it can cause noise, and on the other hand results even in the damage of valve.
The content of the invention：
It is an object of the invention to the technical disadvantages for overcoming existing water hammer to prevent and receive, solve the problems, such as that check-valves reply water hammer is opened in rotation at present from principle and structure, there is provided check-valves is opened in water hammer self-balancing rotation a kind of rational in infrastructure and scientific in principle.
To achieve these goals, the technical scheme taken of the present invention is：
One kind regulation and control check-valves, including valve plate, governor motion, water hammer self balancing device, governor motion is in the range of outlet plenum into step-type piston, governor motion middle part is provided with control chamber, the control chamber is provided with the first chamber and the second chamber, first chamber and the second chamber are connected with each other by throttling element, throttling element is provided with apertured partition, serve as restriction in the opening of apertured partition, described water hammer self balancing device is that discharge orifice is opened up on valve plate, discharge orifice sealing plate fixed support is fixed with the surrounding of discharge orifice, the side of sealing plate is provided with the axis of guide, set to help between fixed support and sealing plate and close spring, spring is arranged on the axis of guide, opposite side is supported on fixed support.
Further, the governor motion is arranged between entrance cavity and outlet plenum.
Further, the governor motion by spring come pretension.
Further, it is provided with discharge orifice on the valve plate.
Beneficial effects of the present invention are：
The present invention is compared with prior art, governor motion is in the range of outlet plenum into step-type piston, governor motion middle part is provided with control chamber, when governor motion is moved, low pressure is formed in the second chamber, to be applied on governor motion to moving reactive power by the low pressure, rapidly realize the pressure balance between the first chamber and the second chamber, the few and durable valve of noise can be realized；If discharge orifice, water hammer current are released, effectively pre- water hammer-resistant is produced；Spring promotes sealing plate design, spring setting damping force effectively to absorb water hammer.Its structure is novel, safe and reliable, with prominent protecting water hammer function, wide adaptation range.
Specific embodiment
One kind regulation and control check-valves, including valve plate, governor motion, water hammer self balancing device, governor motion is in the range of outlet plenum into step-type piston, governor motion middle part is provided with control chamber, the control chamber is provided with the first chamber and the second chamber, first chamber and the second chamber are connected with each other by throttling element, throttling element is provided with apertured partition, serve as restriction in the opening of apertured partition, when governor motion is moved, low pressure is formed in the second chamber, to be applied on governor motion to moving reactive power by the low pressure, rapidly realize the pressure balance between the first chamber and the second chamber, the few and durable valve of noise can be realized；Described water hammer self balancing device is that discharge orifice is opened up on valve plate, discharge orifice sealing plate fixed support is fixed with the surrounding of discharge orifice, the side of sealing plate is provided with the axis of guide, sets to help between fixed support and sealing plate and closes spring, spring is arranged on the axis of guide, and opposite side is supported on fixed support.
The governor motion is arranged between entrance cavity and outlet plenum.
The governor motion is by spring come pretension.
Discharge orifice is provided with the valve plate.
Check-valves is opened in water hammer self-balancing rotation of the present invention, when check-valves during operating mode when closing, valve plate falls under waterpower and Action of Gravity Field to sealing surface, medium is gradually blocked in dropping process, reduce velocity of medium, water hammer is produced therewith, when spring setting force of the water hammer for producing more than self balancing device, spring is compressed, and discharge orifice sealing plate is opened, and water hammer current are discharged by discharge orifice, reduce the generation of water hammer, meanwhile, spring has damping action to water attack current, eliminates the water hammer power that a part has been formed.Discharge flow, spring, water hammer power autobalance, prevent and eliminate water hammer and the generation of water hammer is carried out continuously, untill setting pressure in the process.So as to effectively protect valve in itself and water supply network.
The above is not limitation of the present invention, it should be pointed out that：For those skilled in the art, on the premise of essential scope of the present invention is not departed from, some changes, remodeling, addition can also be made or is replaced, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (4)
1. one kind regulates and controls check-valves, it is characterized in that, including valve plate, governor motion, water hammer self balancing device, governor motion is in the range of outlet plenum into step-type piston, governor motion middle part is provided with control chamber, the control chamber is provided with the first chamber and the second chamber, first chamber and the second chamber are connected with each other by throttling element, throttling element is provided with apertured partition, serve as restriction in the opening of apertured partition, described water hammer self balancing device is that discharge orifice is opened up on valve plate, discharge orifice sealing plate fixed support is fixed with the surrounding of discharge orifice, the side of sealing plate is provided with the axis of guide, set to help between fixed support and sealing plate and close spring, spring is arranged on the axis of guide, opposite side is supported on fixed support.
2. one kind regulates and controls check-valves according to claim 1, it is characterised in that the governor motion is arranged between entrance cavity and outlet plenum.
3. one kind regulates and controls check-valves according to claim 1, it is characterised in that the governor motion is by spring come pretension.
4. one kind regulates and controls check-valves according to claim 1, it is characterised in that be provided with discharge orifice on the valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510951111.5A CN106895183A (en) | 2015-12-19 | 2015-12-19 | One kind regulation and control check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510951111.5A CN106895183A (en) | 2015-12-19 | 2015-12-19 | One kind regulation and control check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106895183A true CN106895183A (en) | 2017-06-27 |
Family
ID=59188461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510951111.5A Pending CN106895183A (en) | 2015-12-19 | 2015-12-19 | One kind regulation and control check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106895183A (en) |
-
2015
- 2015-12-19 CN CN201510951111.5A patent/CN106895183A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108386050A (en) | A kind of pressure controllable type fluid linking damper | |
| CN101709799A (en) | Multifunctional sleeve type energy dissipation valve | |
| CN201273386Y (en) | Piston type pressure-control check valve | |
| CN205226505U (en) | Adjustable relief pressure valve of direct current sleeve piston bivalve lamella | |
| CN201262254Y (en) | Self-operated slowly closed check valve | |
| CN205479527U (en) | Check valve with adjustable damping buffering | |
| CN106895183A (en) | One kind regulation and control check-valves | |
| CN103836237B (en) | Fusiformis is adjustable non-return valve | |
| CN206386526U (en) | The reverse pressure release type of one master-slave type is noiseless check-valves | |
| CN202708220U (en) | Noise reduction structure of pump pipeline valve applied to water supplying and draining system | |
| CN203686268U (en) | Self-flushing damping and abrasion-resistant screwing type check valve | |
| CN209084091U (en) | Electronic relief valve | |
| CN207486079U (en) | A kind of speed closes butterfly valve | |
| JP6086802B2 (en) | Lever float drain trap | |
| CN205036863U (en) | Piston water hammer pressure release main valve | |
| CN206539740U (en) | A kind of barrier film buffer-type rubber flap check valve | |
| CN211010010U (en) | Swing type rubber valve clack slow-closing check valve | |
| CN104819323A (en) | Water hammer self-balancing swing one-way valve | |
| CN104747763A (en) | Current limiting check valve | |
| CN107339471B (en) | Diaphragm buffer type rubber flap check valve | |
| KR20070009766A (en) | Check valve system | |
| CN203176453U (en) | Slowly-closed device for check valve | |
| CN207349553U (en) | One kind automatically shuts down hydraulic butterfly valve | |
| CN205896290U (en) | Fast closed check valve | |
| CN102392905A (en) | Straight-through type water-hammer eliminating check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170627 |
|
| WD01 | Invention patent application deemed withdrawn after publication |