CN107676253B - 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
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- CN107676253B CN107676253B CN201711107633.2A CN201711107633A CN107676253B CN 107676253 B CN107676253 B CN 107676253B CN 201711107633 A CN201711107633 A CN 201711107633A CN 107676253 B CN107676253 B CN 107676253B
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- flap valve
- level
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- twin
- stage
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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 valves 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 includes first order flap valve (2) and second level flap valve (3), 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) first order flap valve (2) by the second door hinge component (42).Flap valve of the present invention includes level-one door leaf, second level door leaf, gate seat, and flap valve is closed in time using a part of gravity when flap valve can smoothly, timely be opened, but also can guarantee shutdown when door hinge component not only can guarantee water pump booting, and high degree reduces impact force.
Description
Technical field
The present invention relates to being opened when a kind of booting of irrigation and drainage pumping station, the cut-off device that when shutdown closes, 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 technique
Flap valve mainly applies to the cut-off device of the outlet of pumping plant, closes in compressor emergency shutdown, separates water flow, prevents water flow
Into inverting unit in pump assembly.Currently, existing flap valve type, 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 some problems.The hinge of some side-turning type flap valves is arranged on perpendicular
The upward midpoint of histogram, such bring consequence are exactly that flap valve can not be closed rationally using its own gravity；If hinge
It is arranged at oblique upper, is voluntarily closed although can use a part of gravity, Men Litai is closed in large pumping station greatly and can produce
Raw vibration.And a whole flap valve is divided into two pieces of reduction impact forces by twin-stage flap valve, but resistance is too when can have water pump booting
Greatly, the case where door bad opening.Above situation is all an important factor for but having generation, also will affect water pump operation.
Summary of the invention
In order to which flap valve is not easy to open when solving water pump booting, impact force too big problem when shutdown, the present invention provides one kind
The advantages of twin-stage flap valve of free side-turning type, present invention incorporates side-turning type flap valve and twin-stage flap valves, bat when both can guarantee booting
Flap valve is closed in time using a part of gravity when door can smoothly, timely be opened, and can guarantee shutdown, and high degree reduces
Impact force.
The technical solution adopted by 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 includes first order flap valve and second level flap valve, and first order flap valve is logical
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 endpoints of the straightway of first order flap valve
It is overlapped with two endpoints 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
The length of straightway is the diameter length of two-shipper flap valve, the second straight line section of second level flap valve and the straightway weight of first order flap valve
It closes setting and is hinged, the sum of the arc section of second level flap valve and the circular arc segment length of first order flap valve are the perimeter 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 greater than the quality of second level flap valve.
Preferably, the midpoint of first order flap valve arc section is arranged in the first door hinge component.
Preferably, the maximum folding angle of the second level flap valve and second level flap valve bracket is 150 °.
Preferably, the first straight line section of the second level flap valve is equipped with 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 present invention are:
First, the twin-stage flap valve of free side-turning type of the present invention, including level-one door leaf, second level door leaf, gate seat, door hinge component.
Level-one door leaf is heavier, and second level door leaf is lighter.Flap valve level-one door leaf quality is larger, second level door leaf lighter weight.Flap valve door hinge position
Positioned at 45 ° obliquely of the horizontal line center of circle.Flap valve shares door leaf 4, and is arranged symmetrically.Second level flap valve commissure has sealing to intersect.
Second level flap valve and level-one flap valve maximum angle are restricted.
Second, flap valve of the present invention can booting when water flow it is little when, impact flap valve, at this time lighter weight second level clap
Door is washed open by water, and with the increase of rate of water added, second level flap valve to certain aperture, the biggish level-one flap valve of quality is also rushed to open, at this time
Flap valve standard-sized sheet, the angle versus primary flap valve of second level flap valve it is big, which solves common side-turning type flap valves to be difficult disposably handle
The fully open problem of door.When shutting down, the water pressure as suffered by level-one flap valve is larger, and it is bigger than second level flap valve to be self-possessed, so
It first closes, then level-one flap valve turns off.Since hinge is oblique upper arrangement so being that the component of gravity and water pressure play
Effect, rather than flap valve is all self-possessed, this reduces impact forces when greatly closing.
Detailed description of the invention
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.
Specific embodiment
Present invention will be further explained below with reference to the attached 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 endpoints of the straightway 22 of first order flap valve 2 and the
Two endpoints of the arc section 21 of level-one flap valve 2 are overlapped；
The second level flap valve 3 is triangular structure, including first straight line section 31, second straight line section 32 and the first arc section
33, the length of first straight line section 31 is the diameter length of two-shipper flap valve, and the second straight line section 32 and the first order of second level flap valve 3 are clapped
The straightway 22 of door 2 is overlapped setting and is hinged, and the arc section 33 of second level flap valve 3 and the arc section 21 of first order flap valve 2 are long
The sum of degree is the half of the perimeter of two-shipper flap valve.
The length of the arc section 33 of second level flap valve 3 is less than 21 length of arc section of first order flap valve 2.
Preferably, the quality of the first order flap valve 2 is greater than the quality of second level flap valve 3.
The midpoint of 2 arc section 21 of first order flap valve is arranged in first door hinge component 41.
The maximum folding angle of second level flap valve 3 and 2 bracket of second level flap valve is 150 °.
The first straight line section 31 of second level flap valve 3 is equipped with 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 are as follows: when water pump assembly booting when, water from
Outlet conduit outflow, what is be rushed to open first is the second level flap valve 3 of lighter weight, when flap valve 3 aperture in the second level 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, at this time water
Stream smoothly goes out to flow.When water pump assembly shutdown, water is slowly reduced in pipeline, and first order flap valve 2 relied on the component of gravity before this
It is closed with water pressure, also flap valve 3 aperture in the second level is driven to become smaller at this time, when first order flap valve 2 completely closes, second level flap valve
3 also close gradually, until completely closing.
Claims (7)
1. a kind of twin-stage flap valve of free side-turning type, characterized in that the flap valve includes two symmetrically arranged semicircle flap valves
Component, flap valve component include first order flap valve (2) and second level flap valve (3), and first order flap valve (2) passes through the first door hinge component
(41) it is arranged 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 ends of the straightway (22) of first order flap valve (2)
Point is overlapped with two endpoints of the arc section (21) of first order flap valve (2)；
The second level flap valve (3) is triangular structure, including first straight line section (31), second straight line section (32) and the first circular arc
Section (33), the length of first straight line section (31) are the diameter length of twin-stage flap valve, the second straight line section (32) of second level flap valve (3)
It is overlapped setting with the straightway (22) of first order flap valve (2) and is hinged, the arc section (33) and the first order of second level flap valve (3)
The sum of arc section (21) length of flap valve (2) is the half of the perimeter of twin-stage flap valve.
2. a kind of twin-stage flap valve of free side-turning type according to claim 1, 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.
3. a kind of twin-stage flap valve of free side-turning type according to claim 1 or 2, characterized in that the first order flap valve
(2) quality is greater than the quality of second level flap valve (3).
4. a kind of twin-stage flap valve of free side-turning type according to claim 3, characterized in that the first door hinge component
(41) it is arranged at the midpoint of first order flap valve (2) arc section (21).
5. a kind of twin-stage flap valve of free side-turning type according to claim 4, characterized in that the second level flap valve (3)
Maximum folding angle with second level flap valve (2) bracket is 150 °.
6. a kind of twin-stage flap valve of free side-turning type according to claim 1, characterized in that the second level flap valve (3)
First straight line section (31) be equipped with gasket.
7. a kind of twin-stage flap valve of free side-turning type according to claim 1, characterized in that the second door hinge component
(42) quantity is two, and two the second door hinge components (42) are evenly arranged in the second straight line section (32) of second level flap valve (3)
On the straightway (22) of first order flap valve (2).
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 CN107676253A (en) | 2018-02-09 |
| CN107676253B true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0810016Y2 (en) * | 1990-06-30 | 1996-03-27 | オーエム工業株式会社 | Fuel tank backflow prevention device |
| JPH10318387A (en) * | 1997-05-15 | 1998-12-04 | Tlv Co Ltd | Butterfly check valve |
| JP4091274B2 (en) * | 2001-06-21 | 2008-05-28 | 株式会社荏原製作所 | Water stop separation 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 |
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2017
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| CN107676253A (en) | 2018-02-09 |
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