CN107676253A - A kind of twin-stage flap valve of free side-turning type - Google Patents
A kind of twin-stage flap valve of free side-turning type Download PDFInfo
- Publication number
- CN107676253A CN107676253A CN201711107633.2A CN201711107633A CN107676253A CN 107676253 A CN107676253 A CN 107676253A CN 201711107633 A CN201711107633 A CN 201711107633A CN 107676253 A CN107676253 A CN 107676253A
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- Prior art keywords
- flap valve
- level
- order
- twin
- stage
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of twin-stage flap valve of free side-turning type, belong to hydraulic engineering technical field.Twin-stage flap valve, including two symmetrically arranged semicircle flap valve components, flap valve component include first order flap valve（2）With second level flap valve（3）, first order flap valve（2）Pass through the first hinged door hinge component（41）In gate seat（1）On, second level flap valve（3）Pass through the second door hinge component（42）It is arranged on first order flap valve（2）On.Flap valve of the present invention includes one-level door leaf, two level door leaf, gate seat, and flap valve smoothly, can be opened timely when door hinge component both can guarantee that water pump start, and and can ensures that flap valve is closed in time using a part of gravity during shutdown, and high degree reduces impact.
Description
Technical field
The cut-off device closed the present invention relates to being opened during a kind of start of irrigation and drainage pumping station, during shutdown, be especially it is a kind of from
By the twin-stage flap valve of side turn over, belong to hydraulic engineering technical field.
Background technology
Flap valve mainly applies to the cut-off device of the outlet of pumping plant, is closed in compressor emergency shutdown, separates current, prevents current
Unit is inverted into pump assembly.At present, existing flap valve species, which much has, hangs counterweight cast iron flap valve, side-turning type flap valve,
Twin-stage flap valve, but its particular technique is perfect not enough, there are problems that.The hinge of some side-turning type flap valves is arranged on perpendicular
The upward midpoint of Nogata, the consequence so brought are exactly that flap valve can not be closed rationally using its own gravity；If hinge
It is arranged at oblique upper, although can voluntarily be closed using a part of gravity, Men Litai is closed in large pumping station greatly and can be produced
Raw vibrations.And an overall flap valve is divided into two pieces of reduction impacts by twin-stage flap valve, but resistance is too when can have water pump start
Greatly, the situation of the bad opening of door.The above situation is all but to have generation, an important factor for also influenceing water pump operation.
The content of the invention
In order to which flap valve is not easy to open when solving water pump start, the problem of impact is too big during shutdown, the present invention provides a kind of
The twin-stage flap valve of free side-turning type, present invention incorporates the advantages of side-turning type flap valve and twin-stage flap valve, clapped when both can guarantee that start
Door smoothly, can be opened timely, and and can ensures that flap valve is closed in time using a part of gravity during shutdown, and high degree reduces
Impact.
The technical solution adopted for the present invention to solve the technical problems is a kind of twin-stage flap valve of free side-turning type, including
Two symmetrically arranged semicircle flap valve components, flap valve component include first order flap valve and second level flap valve, and first order flap valve leads to
The first hinged door hinge component is crossed on gate seat, second level flap valve is arranged on first order flap valve by the second door hinge component.
Preferably, the first order flap valve includes arc section and straightway, two end points of the straightway of first order flap valve
Overlapped with two end points of the arc section of first order flap valve；
The second level flap valve is triangular structure, including first straight line section, second straight line section and the first arc section, first straight line
The length of section is the diameter length of two-shipper flap valve, and the second straight line section of second level flap valve overlaps with the straightway of first order flap valve to be set
Put and be hinged, the arc section of second level flap valve and the circular arc segment length sum of first order flap valve are the one of the girth of two-shipper flap valve
Half.
Preferably, the length of the arc section of the second level flap valve is less than the circular arc segment length of first order flap valve.
Preferably, the quality of the first order flap valve is more than the quality of second level flap valve.
Preferably, the first door hinge component is arranged on the midpoint of first order flap valve arc section.
Preferably, the maximum folding angle of the second level flap valve and second level flap valve support is 150 °.
Preferably, the first straight line section of the second level flap valve is provided with sealing gasket.
Preferably, the quantity of the second door hinge component is two, and two the second door hinge components are evenly arranged in the second level
In the second straight line section of flap valve and the straightway of first order flap valve.
Compared with prior art, the beneficial effects of the invention are as follows：
First, the twin-stage flap valve of free side-turning type of the present invention, including one-level door leaf, two level door leaf, gate seat, door hinge component.One-level
Door leaf is heavier, and two level door leaf is lighter.Flap valve one-level door leaf quality is larger, two level door leaf lighter weight.Flap valve door hinge position is located at
45 ° obliquely of the horizontal line center of circle.Flap valve shares door leaf 4, and is arranged symmetrically.Two level flap valve commissure has sealing intersecting.Two level
Flap valve and one-level flap valve maximum angle are restricted.
Second, flap valve of the present invention can start when water-carrying capacity it is little when, impact flap valve, now lighter weight two level clap
Door is washed open by water, and with the increase of rate of water added, two level flap valve to certain aperture, the larger one-level flap valve of quality is also rushed to open, now
Flap valve standard-sized sheet, the angle versus primary flap valve of two level flap valve it is big, be difficult disposable handle which solves common side-turning type flap valve
The problem of door is fully open.When shutting down, because water pressure suffered by one-level flap valve is larger, and it is bigger than two level flap valve to conduct oneself with dignity, so
First close, then one-level flap valve turns off.Because hinge is that oblique upper is arranged so being that the component of gravity and water pressure serve
Effect, rather than flap valve are all conducted oneself with dignity, and this reduces impact when greatly closing.
Brief description of the drawings
Fig. 1 is a kind of twin-stage flap valve schematic diagram of free side-turning type of the present invention.
1 gate seat in figure, 2 first order flap valves, 3 second level flap valves, 21 arc sections, 22 straightways, 31 first straight line sections, 32
Second straight line section, 33 first arc sections, 41 first hinged door hinge components, 42 second door hinge components.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of twin-stage flap valve of free side-turning type, including two symmetrically arranged semicircle flap valve components.
Flap valve component includes first order flap valve 2 and second level flap valve 3, and first order flap valve 2 passes through the first hinged door hinge component 41
On gate seat 1, second level flap valve 3 is arranged on first order flap valve 2 by the second door hinge component 42.
First order flap valve 2 includes arc section 21 and straightway 22, two end points of the straightway 22 of first order flap valve 2 and
Two end points of the arc section 21 of one-level flap valve 2 overlap；
The second level flap valve 3 is triangular structure, including first straight line section 31, the arc section 33 of second straight line section 32 and first,
The length of first straight line section 31 is the diameter length of two-shipper flap valve, the second straight line section 32 of second level flap valve 3 and first order flap valve 2
Straightway 22 overlap and set and be hinged, the arc section 33 of second level flap valve 3 and the length of arc section 21 of first order flap valve 2 it
With the half of the girth for two-shipper flap valve.
The length of the arc section 33 of second level flap valve 3 is less than the length of arc section 21 of first order flap valve 2.
Preferably, the quality of the first order flap valve 2 is more than the quality of second level flap valve 3.
First door hinge component 41 is arranged on the midpoint of the arc section 21 of first order flap valve 2.
The maximum folding angle of second level flap valve 3 and the support of second level flap valve 2 is 150 °.
The first straight line section 31 of second level flap valve 3 is provided with sealing gasket.
The quantity of second door hinge component 42 is two, and two the second door hinge components 42 are evenly arranged in second level flap valve 3
On the straightway 22 of second straight line section 32 and first order flap valve 2.
As shown in figure 1, a kind of course of work of the twin-stage flap valve of free side-turning type is：When water pump assembly is started shooting, water from
Outlet conduit flows out, and what is be rushed to open first is the second level flap valve 3 of lighter weight, when the aperture of second level flap valve 3 reaches certain journey
When spending, the first order flap valve 2 of heavier mass is rushed to open, but the angle of second level flap valve 3 is bigger than first order flap valve 2, now water
Stream smoothly goes out stream.When water pump assembly shuts down, water is slowly reduced in pipeline, and first order flap valve 2 relied on the component of gravity before this
Closed with water pressure, now also drive the aperture of second level flap valve 3 to diminish, when first order flap valve 2 completely closes, second level flap valve
3 also close gradually, until completely closing.
Claims (8)
1. a kind of twin-stage flap valve of free side-turning type, it is characterized in that, the flap valve includes two symmetrically arranged semicircle flap valves
Component, flap valve component include first order flap valve（2）With second level flap valve（3）, first order flap valve（2）Pass through the first hinged door hinge component
（41）In gate seat（1）On, second level flap valve（3）Pass through the second door hinge component（42）It is arranged on first order flap valve（2）On.
2. a kind of twin-stage flap valve of free side-turning type according to claim 1, it is characterized in that, the first order flap valve（2）
Including arc section（21）And straightway（22）, first order flap valve（2）Straightway（22）Two end points and first order flap valve（2）
Arc section（21）Two end points overlap；
The second level flap valve（3）For triangular structure, including first straight line section（31）, second straight line section（32）With the first circular arc
Section（33）, first straight line section（31）Length be two-shipper flap valve diameter length, second level flap valve（3）Second straight line section（32）
With first order flap valve（2）Straightway（22）Overlap and set and be hinged, second level flap valve（3）Arc section（33）With the first order
Flap valve（2）Arc section（21）Length sum is the half of the girth of two-shipper flap valve.
3. a kind of twin-stage flap valve of free side-turning type according to claim 2, it is characterized in that, the second level flap valve（3）
Arc section（33）Length be less than first order flap valve（2）Arc section（21）Length.
4. a kind of twin-stage flap valve of free side-turning type according to claim 1,2 or 3, it is characterized in that, the first order is clapped
Door（2）Quality be more than second level flap valve（3）Quality.
5. a kind of twin-stage flap valve of free side-turning type according to claim 4, it is characterized in that, the first door hinge component
（41）It is arranged on first order flap valve（2）Arc section（21）Midpoint.
6. a kind of twin-stage flap valve of free side-turning type according to claim 5, it is characterized in that, the second level flap valve（3）
With second level flap valve（2）The maximum folding angle of support is 150 °.
7. a kind of twin-stage flap valve of free side-turning type according to claim 2, it is characterized in that, the second level flap valve（3）
First straight line section（31）It is provided with sealing gasket.
8. a kind of twin-stage flap valve of free side-turning type according to claim 2, it is characterized in that, the second door hinge component
（42）Quantity be two, two the second door hinge components（42）It is evenly arranged in second level flap valve（3）Second straight line section（32）
With first order flap valve（2）Straightway（22）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107633.2A CN107676253B (en) | 2017-11-10 | 2017-11-10 | A kind of twin-stage flap valve of free side-turning type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107633.2A CN107676253B (en) | 2017-11-10 | 2017-11-10 | A kind of twin-stage flap valve of free side-turning type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107676253A true CN107676253A (en) | 2018-02-09 |
| CN107676253B CN107676253B (en) | 2019-04-09 |
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ID=61146250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711107633.2A Active CN107676253B (en) | 2017-11-10 | 2017-11-10 | A kind of twin-stage flap valve of free side-turning type |
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| CN (1) | CN107676253B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253488A (en) * | 2020-10-16 | 2021-01-22 | 扬州大学 | Novel two-stage flexible flap valve device suitable for bidirectional pump station and operation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222519A (en) * | 1990-06-30 | 1993-06-29 | Om Industrial Co., Ltd. | Reverse-flow prevention device for fuel tank |
| JPH10318387A (en) * | 1997-05-15 | 1998-12-04 | Tlv Co Ltd | Butterfly check valve |
| JP2003004152A (en) * | 2001-06-21 | 2003-01-08 | Ebara Corp | Cut-off part separable type check valve |
| CN2685394Y (en) * | 2004-01-12 | 2005-03-16 | 广州市科阳机电阀门有限公司 | Hydraulic floating gates |
| CN201166165Y (en) * | 2008-03-24 | 2008-12-17 | 张坚 | Spherical shell type double-side opening self-closing flap valve |
| CN203200894U (en) * | 2013-05-17 | 2013-09-18 | 福州市规划设计研究院 | Three-segment type energy-saving flap valve |
| CN203585451U (en) * | 2013-10-24 | 2014-05-07 | 铜陵市经纬流体科技有限公司 | Portable check valve |
-
2017
- 2017-11-10 CN CN201711107633.2A patent/CN107676253B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222519A (en) * | 1990-06-30 | 1993-06-29 | Om Industrial Co., Ltd. | Reverse-flow prevention device for fuel tank |
| JPH10318387A (en) * | 1997-05-15 | 1998-12-04 | Tlv Co Ltd | Butterfly check valve |
| JP2003004152A (en) * | 2001-06-21 | 2003-01-08 | Ebara Corp | Cut-off part separable type check valve |
| CN2685394Y (en) * | 2004-01-12 | 2005-03-16 | 广州市科阳机电阀门有限公司 | Hydraulic floating gates |
| CN201166165Y (en) * | 2008-03-24 | 2008-12-17 | 张坚 | Spherical shell type double-side opening self-closing flap valve |
| CN203200894U (en) * | 2013-05-17 | 2013-09-18 | 福州市规划设计研究院 | Three-segment type energy-saving flap valve |
| CN203585451U (en) * | 2013-10-24 | 2014-05-07 | 铜陵市经纬流体科技有限公司 | Portable check valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253488A (en) * | 2020-10-16 | 2021-01-22 | 扬州大学 | Novel two-stage flexible flap valve device suitable for bidirectional pump station and operation method thereof |
| CN112253488B (en) * | 2020-10-16 | 2022-04-19 | 扬州大学 | Novel two-stage flexible flap valve device suitable for bidirectional pump station and operation method thereof |
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| Publication number | Publication date |
|---|---|
| CN107676253B (en) | 2019-04-09 |
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