CN105179755A - Swing axial-flow check valve - Google Patents
Swing axial-flow check valve Download PDFInfo
- Publication number
- CN105179755A CN105179755A CN201410242782.XA CN201410242782A CN105179755A CN 105179755 A CN105179755 A CN 105179755A CN 201410242782 A CN201410242782 A CN 201410242782A CN 105179755 A CN105179755 A CN 105179755A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- check valve
- flow
- rotating shaft
- 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
Landscapes
- Check Valves (AREA)
Abstract
The invention belongs to a check valve, and specifically relates to an axial-flow check valve which starts in low pressure difference, has low flow resistance, and switches in a swing type motion method. The check valve comprises a valve body. The top of the valve body is connected with a valve cover through a bolt, and a pressure boundary is formed. The internal of the valve body is connected with moving parts. The moving parts comprise a rocker and a valve element. One end of the rocker is connected with the valve element, and the other end of the rocker is connected with a rotating shaft. The rotating shaft is arranged in the valve body. The rocker drives the valve element to do pendulum motion around the rotating shaft. The internal of the valve body is also provided with a positioning lug. The check valve is advantaged in that when the valve element is opened completely, the state of the valve is similar to an axial-flow check valve structure, flow resistance is low, and flow coefficient is large, and a relatively complex guiding structure in a common axial-flow check valve does not exist. The swing axial-flow check valve is better in flow capacity, the upper part of the valve body is provided with bolts which can be opened and the bolts are connected with a medium flange. Components are installed from the upper part, and on-line overhaul is realized.
Description
Technical field
The invention belongs to a kind of safety check, be specifically related to a kind of axial flow safety check with low voltage difference unlatching, low flow resistance, employing rotary-open type motion mode switch.
Background technique
Safety check is the valve controlling pipeline internal medium one-way flow, is used for preventing the medium in pipeline from flowing backwards.The common structure of safety check comprises: Swing check valve, Lift check valve, butterfly check valve, axial flow type check valve.Swing check valve is modal check valve structure form, and motion mode is that the rotating shaft above valve seat rotates, and this type safety check technical maturity, maintenance are conveniently.Axial flow type check valve structure for being arranged symmetrically with, streamlined, motion mode is the straight line motion along axis, its have operate steadily, flow resistance is little, fluidised form good, the feature of, low noise fast to media variations response.The requirement of polluting valve green, low energy consumption, low noise along with country is more and more higher, and axial flow type check valve is a developing direction.Rotary-open type axial flow safety check combines the advantage of Swing check valve and axial flow type check valve, is a brand-new safety check kind.
Summary of the invention
The object of this invention is to provide a kind of rotary-open type axial flow safety check, it combines the advantage of Swing check valve and axial flow type check valve.
The present invention realizes like this, rotary-open type axial flow safety check, it comprises valve body, and the top of valve body has been bolted valve gap and mineralization pressure border, valve body be internally connected with movement parts, movement parts comprises rocking bar and spool, one end of rocking bar connects spool, the other end connection rotating shaft of rocking bar, and rotating shaft is arranged on valve inner, rocking bar band movable valve plug does tilting movement around rotating shaft, and the inside of valve body is also provided with location lug.
Described spool comprises ball-shaped end and taper afterbody.
Described spool is tilting sealing surface on the sphere of end, due to sphere with plane is tangent is all circle, forms the valve core sealed cover of annular.
One end of valve body 1 is also provided with sealing surface of seat.
Advantage of the present invention is, 1) and because spool does not need whiz runner, only need the angle of swing of common Swing check valve 1/3rd to realize full open, therefore there is switch rapid, close impact little, the feature that starting differential pressure is low, easily reach fully open position simultaneously; 2) spool afterbody as counterweight, can make spool center of gravity rearward, and gyration center can not need to be located at directly over valve seat, does not need to use curved rocking bar, reduces valve body, rocking bar design manufacturing difficulty; 3) when spool is all opened, the state of valve is similar with axial flow type check valve structural type, and flow resistance is little, flow coefficient is large, and do not have the guide structure that plain shaft flow check valve is more complicated, negotiability is stronger simultaneously; 4) flange during valve body top has openable bolt to connect, part loads from top, can realize on-bne repair.
Accompanying drawing explanation
Fig. 1 is rotary-open type axial flow safety check fully open position structural drawing provided by the present invention;
Fig. 2 is rotary-open type axial flow safety check closed positions structural drawing provided by the present invention;
Fig. 3 is rotary-open type axial flow safety check fully open position plan view provided by the present invention.
In figure: 1 valve body, 2 spools, 3 rocking bars, 4 rotating shafts, 5 valve gaps, 6 bolts, 7 sealing surface of seats, 8 valve core sealed covers, 9 location lugs.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail:
As Figure 1-3, rotary-open type axial flow safety check comprises the valve body 1 with three-port structure, and the top of valve body 1 is connected with valve gap 5 and mineralization pressure border by bolt 6.Valve body 1 be internally connected with movement parts, movement parts comprises rocking bar 3 and spool 2, and one end of rocking bar 3 connects spool 2, the other end connection rotating shaft 4 of rocking bar, and it is inner that rotating shaft 4 is fixed on valve body 1, and rocking bar 3 is with movable valve plug 2 to do tilting movement around rotating shaft 4.The inside of valve body 1 is also fixed with location lug 9.One end of valve body 1 is also provided with sealing surface of seat 7.Spool 2 comprises ball-shaped end and taper afterbody.Tilting sealing surface on the sphere of end, due to sphere with plane is tangent is all circle, forms the valve core sealed cover 8 of annular, can realize effective sealing (as shown in Figure 2) in closed position with sealing surface of seat 7.Locate by location lug 9 at enable possition spool 2, be located on runner center line, can be formed and be arranged symmetrically with, realize the flow field (as shown in Figure 3) of similar axial flow valve.
Owing to not needing spool whiz runner during rotary-open type axial flow safety check standard-sized sheet, so opening angle is very little, only has the angle of swing of common Swing check valve 1/3rd.
Claims (4)
1. rotary-open type axial flow safety check, it is characterized in that: it comprises valve body (1), the top of valve body (1) is connected with valve gap (5) and mineralization pressure border by bolt (6), valve body (1) be internally connected with movement parts, movement parts comprises rocking bar (3) and spool (2), one end of rocking bar (3) connects spool (2), the other end connection rotating shaft (4) of rocking bar (3), it is inner that rotating shaft (4) is arranged on valve body (1), rocking bar (3) band movable valve plug (2) does tilting movement around rotating shaft (4), the inside of valve body (1) is also provided with location lug (9).
2. rotary-open type axial flow safety check as claimed in claim 1, is characterized in that: described spool (2) comprises ball-shaped end and taper afterbody.
3. rotary-open type axial flow safety check as claimed in claim 2, is characterized in that: described spool (2) is tilting sealing surface on the sphere of end, due to sphere with plane is tangent is all circle, forms the valve core sealed cover (8) of annular.
4. rotary-open type axial flow safety check as claimed in claim 1, is characterized in that: one end of valve body 1 is also provided with sealing surface of seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410242782.XA CN105179755A (en) | 2014-06-03 | 2014-06-03 | Swing axial-flow check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410242782.XA CN105179755A (en) | 2014-06-03 | 2014-06-03 | Swing axial-flow check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105179755A true CN105179755A (en) | 2015-12-23 |
Family
ID=54902051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410242782.XA Pending CN105179755A (en) | 2014-06-03 | 2014-06-03 | Swing axial-flow check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105179755A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI567519B (en) * | 2016-01-29 | 2017-01-21 | 優盛醫學科技股份有限公司 | Exhaust pressure relief device |
| CN107940092A (en) * | 2017-12-18 | 2018-04-20 | 珠海格力电器股份有限公司 | Gas flow adjusting device, air duct assembly and air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB536543A (en) * | 1940-01-24 | 1941-05-19 | Robert Arnold Blakeborough | An improvements in or relating to non-return valves |
| CN2089103U (en) * | 1991-04-25 | 1991-11-20 | 李金铎 | Mini-resistance valve with curve flow path |
| CN202646801U (en) * | 2012-05-28 | 2013-01-02 | 中核苏阀科技实业股份有限公司 | High-flow check valve |
| CN202659981U (en) * | 2012-05-31 | 2013-01-09 | 泉州市沪航阀门制造有限公司 | Silent check valve |
| JP2013133842A (en) * | 2011-12-26 | 2013-07-08 | Kawasaki Heavy Ind Ltd | Swing type check valve |
| CN103277542A (en) * | 2013-06-18 | 2013-09-04 | 苏州德兰能源科技有限公司 | Check valve structure |
-
2014
- 2014-06-03 CN CN201410242782.XA patent/CN105179755A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB536543A (en) * | 1940-01-24 | 1941-05-19 | Robert Arnold Blakeborough | An improvements in or relating to non-return valves |
| CN2089103U (en) * | 1991-04-25 | 1991-11-20 | 李金铎 | Mini-resistance valve with curve flow path |
| JP2013133842A (en) * | 2011-12-26 | 2013-07-08 | Kawasaki Heavy Ind Ltd | Swing type check valve |
| CN202646801U (en) * | 2012-05-28 | 2013-01-02 | 中核苏阀科技实业股份有限公司 | High-flow check valve |
| CN202659981U (en) * | 2012-05-31 | 2013-01-09 | 泉州市沪航阀门制造有限公司 | Silent check valve |
| CN103277542A (en) * | 2013-06-18 | 2013-09-04 | 苏州德兰能源科技有限公司 | Check valve structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI567519B (en) * | 2016-01-29 | 2017-01-21 | 優盛醫學科技股份有限公司 | Exhaust pressure relief device |
| CN107940092A (en) * | 2017-12-18 | 2018-04-20 | 珠海格力电器股份有限公司 | Gas flow adjusting device, air duct assembly and air conditioner |
| CN107940092B (en) * | 2017-12-18 | 2024-05-14 | 珠海格力电器股份有限公司 | Air flow adjusting device, air duct assembly and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105179755A (en) | Swing axial-flow check valve | |
| CN105937646A (en) | Intelligent gas meter motor valve | |
| CN104482253A (en) | Combined valve | |
| CN207195757U (en) | A kind of swing check valve with collection fluid media (medium) function | |
| CN203686193U (en) | High-temperature-resistant rigidity seal rapidly-closed door | |
| CN104500818B (en) | Balance type electromagnetic valve with mechanical valve position indicator and manual operating device | |
| CN103453182A (en) | High pressure exhaust check valve | |
| CN104879503B (en) | A kind of quick-action slurry stop valve | |
| CN108036065A (en) | A kind of fluid flow directional control valve | |
| CN202451900U (en) | Right-angle quick closing check valve | |
| CN208967094U (en) | A kind of flow control ball valve | |
| CN205877293U (en) | It instructs structure swing check valve to have valve position | |
| CN202469034U (en) | Pilot-operated gate valve | |
| CN202327183U (en) | Top entry ball valve | |
| CN201866292U (en) | Lightly-opened gate valve | |
| CN103322242B (en) | A kind of Multifunctional combined valve | |
| CN203703216U (en) | Novel top-mounted valve body structure | |
| CN205331514U (en) | Cast steel swing check valve's valve body | |
| CN202790720U (en) | Double-bushing swing check valve | |
| CN203335941U (en) | Multifunctional combination valve | |
| CN204437337U (en) | Four-way with special nozzle dusts ball valve | |
| CN204226663U (en) | A kind of elasticity stop valve | |
| CN203703187U (en) | Elastic upper sealing mechanism of corrugated pipe valve | |
| CN203322284U (en) | High-water-pressure shut-off valve with graphite ring | |
| CN201747971U (en) | Orbit ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |