CN107202185A - Check-valves being sealed a kind of water hammer-resistant multiple flow passages more - Google Patents
Check-valves being sealed a kind of water hammer-resistant multiple flow passages more Download PDFInfo
- Publication number
- CN107202185A CN107202185A CN201710500791.8A CN201710500791A CN107202185A CN 107202185 A CN107202185 A CN 107202185A CN 201710500791 A CN201710500791 A CN 201710500791A CN 107202185 A CN107202185 A CN 107202185A
- Authority
- CN
- China
- Prior art keywords
- flap
- valve
- check
- valves
- buffer body
- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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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
- 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
- F16K47/026—Means in valves for absorbing fluid energy for preventing water-hammer or noise preventing noise in a single handle mixing valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention provides seal check-valves a kind of water hammer-resistant multiple flow passages more, including valve body, baffle, the first bushing, flap, the axis of guide and spring, flap is assemblied on the inside of baffle by the axis of guide, the first bushing, spring is assemblied on the axis of guide, also include buffer body, buffer body is fixed on valve body by support, and buffer body is arranged on flap closing direction side and in sealing contact with flap when flap is closed；It is to be provided with the second bushing in buffering cavity, arc buffering wall that buffer body, which has in the arc buffering wall of protrusion, arc buffering wall, and the axis of guide is passed from flap and is connected with the second bushing, and the pod apertures with buffering cavity conducting are additionally provided with flap.Valve of the present invention has buffer body structure, in the normal excessively stream work of valve, can reduce due to the water hammer that fluid pressure difference is excessive and produces, it is to avoid cause the abrasion of valve because impulsive force is excessive, can also realize the effect of Jing Yin non-return.
Description
Technical field
The invention belongs to valve technology field, more particularly, to sealing check-valves a kind of water hammer-resistant multiple flow passages more.
Background technology
Check-valves is also known as check (non-return) valve, counterbalance valve or check valve, and the main function of check-valves is to prevent medium from flowing backwards.Check-valves
Belong to automatic valve, automatically turn on or close by the thrust of media flow in pipeline.
The flap during opening and closing element of check-valves, axis of the flap along valve body moves up and down, and the flap of check-valves can load bullet
Spring, can be achieved quick closedown.Existing check-valves flap is during long-term use, by long-term mill of the medium to sealing pair
Damage, the problem of bearing capacity reduces or even damaged easily occur, cause valve service life to reduce.
The content of the invention
In view of this, the present invention is directed to propose sealing check-valves a kind of water hammer-resistant multiple flow passages, to provide a kind of valve body valve more
Valve withstands shocks, and power is small, sealing surface wear is small, the check-valves of valve service life length.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
Check-valves, including valve body, baffle, the first bushing, flap, the axis of guide and bullet are sealed a kind of water hammer-resistant multiple flow passages more
Spring, flap is assemblied on the inside of baffle by the axis of guide, the first bushing, and spring is assemblied on the axis of guide, in addition to buffer body, is delayed
Rush body to be fixed on valve body by support, buffer body is arranged on flap closing direction side and sealed with flap when flap is closed
Contact；
Buffer body has the arc buffering wall of protrusion, is buffering cavity in arc buffering wall, provided with the in arc buffering wall
Two bushings, the axis of guide is passed from flap and is connected with the second bushing, and the pod apertures with buffering cavity conducting are additionally provided with flap.
Further, the flap has a primary sealing area with valve body contact, and flap has the contacted with buffer body
Two sealing surfaces, during closure of check ring, the primary sealing area and secondary sealing area of flap are simultaneously closed.
Further, the buffer body is at the secondary sealing area contact position of flap to be provided with cushion seal circle.
Further, axisymmetrical of the flap along the axis of guide is provided with least two pod apertures.
Relative to prior art, check-valves of the present invention has the advantage that：Valve has buffer body structure, in valve
When the normal excessively stream of door works, it can reduce due to the water hammer that fluid pressure difference is excessive and produces, it is to avoid cause valve because impulsive force is excessive
The abrasion of door, can also realize the effect of Jing Yin non-return；During valve working, medium can be increased by the pod apertures excessively stream on flap
The circulation area of medium, the impulsive force suffered by reduction valve body and flap are added；Flap and valve body, flap and buffer body are multiple-sealed
Single sealing can be avoided to cause the fireballing problem of sealing surface wear, the sealing of valve is not only ensure that, can also reduce
Medium reduces the normal pressure that flap is born to the long term wear of sealing pair, extends valve service life；Valve can use soft seal
Or two kinds of seal forms are sealed firmly, and it can apply in most circulation, it is applied widely.
Brief description of the drawings
The accompanying drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound
The schematic description and description made is used to explain the invention, does not constitute the improper restriction to the invention.
In accompanying drawing：
Fig. 1 is the schematic diagram of the check-valves described in the embodiment of the present invention；
Fig. 2 is the schematic diagram of the check-valves buffer body described in the embodiment of the present invention；
Fig. 3 is the schematic diagram of the check-valves secondary sealing area described in the embodiment of the present invention；
Fig. 4 is the schematic diagram of the check-valves cushion hole described in the embodiment of the present invention；
Fig. 5 is the check-valves opening schematic diagram described in the embodiment of the present invention；
Fig. 6 is the closure of check ring view described in the embodiment of the present invention.
Description of reference numerals：
10- valve bodies；11- baffles；The bushings of 12- first；13- flaps；The 14- axis of guides；15- springs；16- buffer bodies；17-
Support；18- arc buffering walls；19- buffers cavity；The bushings of 20- second；21- pod apertures；22- primary sealing areas；23- second is close
Front cover；24- cushion seal circles.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the invention can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than indicate
Or imply that the device or element of meaning must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the invention
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
Describe the invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The technical program technical problem to be solved is：Existing check-valves sealing pair during long-term work weares and teares
Seriously, valve service life is relatively low.
In order to solve the above-mentioned technical problem, stop as shown in figure 1, present embodiments providing to seal a kind of water hammer-resistant multiple flow passages more
Valve is returned, the existing structure of check-valves is to include valve body 10, baffle 11, the first bushing 12, flap 13, the axis of guide 14 and spring
15, flap 13 is assemblied in the inner side of baffle 11 by the axis of guide 14, the first bushing 12, and spring 15 is assemblied on the axis of guide 14.It is existing
Some check-valves are in closing and opening action, and the sealing surface of flap 13 and valve body 10 can produce friction, i.e. on-off action first
Sealing surface 22 will undertake the extruding force between whole flap 13 and valve body 10, be easily caused the abrasion of primary sealing area 22, cause
Valve service life declines.During valve working, fluid pressure difference it is larger and produce water hammer flap 13 is directly impacted, valve
Valve 13 and the axis of guide 14 of support, spring 15 bear larger impulsive force, meanwhile, impact of water hammer flap 13 can produce larger make an uproar
Sound.
As shown in Fig. 2 in order to reduce fluid impact and impact of water hammer, buffer body is set in the closing direction side of flap 13
16, buffer body 16 is fixed on valve body 10 by support 17, and buffer body 16 has the arc buffering wall 18 of protrusion, arc buffering wall
18 can scatter the impulsive force of the impulsive force of fluid and water hammer, and effectively reduction water hammer is to flap 13, the axis of guide 14 of support, bullet
The impulsive force of the grade part of spring 15.
It is buffering cavity 19 in arc buffering wall 18, is provided with the second bushing 20 in arc buffering wall 18, the axis of guide 14 is from valve
Valve 13 is passed and is connected with the second bushing 20, the pod apertures 21 turned on buffering cavity 19 is additionally provided with flap 13, such as Fig. 4 institutes
Show, during valve working, medium can also pass through leading on flap 13 except passing through by the gap between flap 13 and valve body 10
Discharge orifice 21 flows through, and adds the circulation area of medium, the surge suffered by reduction valve body 10 and flap 13.Arc buffering wall 18
There is secondary sealing area 23 between flap 13, as shown in Fig. 2 during flap 13 is opened and closed, having primary sealing area 22 and second close
The two sealed structures of front cover 23 rub stress simultaneously, reduce the abrasion to primary sealing area 22, add the use longevity of valve
Life.
Fig. 5 is the schematic diagram of valve working state, in other words valve opening state, and the direction of arrow is the side of opening of flap 13
To Fig. 6 is the schematic diagram of valve-closed state, and the direction of arrow is the closing direction of flap 13.
The buffer body 16 is at the contact position of secondary sealing area 23 of flap 13 to be provided with cushion seal circle 24.Flap 13
When being closed to flap closing direction, secondary sealing area 23 and the buffer body 16 of flap 13 are in close contact, and cushion seal circle 24 is squeezed
Compressive strain forms sealing structure, reaches the purpose that medium can not pass through.
Technical scheme that the embodiment is provided has the technical effect that：Valve has the structure of buffer body 16, normal in valve
When excessively stream works, it can reduce due to the water hammer that fluid pressure difference is excessive and produces, it is to avoid cause the mill of valve because impulsive force is excessive
Damage, the effect of Jing Yin non-return can also be realized；During valve working, medium can be increased by the excessively stream of pod apertures 21 on flap 13
The circulation area of medium, reduces valve body 10 and the impulsive force suffered by flap 13；Flap 13 and valve body 10, flap 13 and buffer body
16 it is multiple-sealed can avoid it is single sealing cause the fireballing problem of sealing surface wear, not only ensure that the sealing of valve,
Long term wear of the medium to sealing pair can also be reduced, reduce the normal pressure that flap 13 is born, extend valve service life；Valve
Two kinds of seal forms can be sealed using soft seal or firmly, can be applied in most circulation, it is applied widely.
The preferred embodiment of the invention is the foregoing is only, creation is not intended to limit the invention, it is all at this
Within the spirit and principle of innovation and creation, any modification, equivalent substitution and improvements made etc. should be included in the invention
Protection domain within.
Claims (5)
1. check-valves is sealed a kind of water hammer-resistant multiple flow passages more, including valve body, baffle, the first bushing, flap, the axis of guide and bullet
Spring, flap is assemblied on the inside of baffle by the axis of guide, the first bushing, and spring is assemblied on the axis of guide, it is characterised in that：Also wrap
Buffer body is included, buffer body is fixed on valve body by support, buffer body is arranged on flap closing direction side and in flap closure
When it is in sealing contact with flap；
It is provided with the second lining in buffering cavity, arc buffering wall that buffer body, which has in the arc buffering wall of protrusion, arc buffering wall,
Set, the axis of guide is passed from flap and is connected with the second bushing, and the pod apertures with buffering cavity conducting are additionally provided with flap.
2. sealing check-valves a kind of water hammer-resistant multiple flow passages according to claim 1 more, it is characterised in that：Flap has and valve
The primary sealing area of body contact, flap has the secondary sealing area contacted with buffer body, and during closure of check ring, the first of flap is close
Front cover is simultaneously closed with secondary sealing area.
3. sealing check-valves a kind of water hammer-resistant multiple flow passages according to claim 2 more, it is characterised in that：Buffer body is valve
Cushion seal circle is provided with the secondary sealing area contact position of valve.
4. sealing check-valves a kind of water hammer-resistant multiple flow passages according to claim 2 more, it is characterised in that：Primary sealing area and
Secondary sealing area is soft seal or hard sealing.
5. sealing check-valves a kind of water hammer-resistant multiple flow passages according to claim 1 more, it is characterised in that：Flap is along the axis of guide
Axisymmetrical be provided with least two pod apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710500791.8A CN107202185A (en) | 2017-06-27 | 2017-06-27 | Check-valves being sealed a kind of water hammer-resistant multiple flow passages more |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710500791.8A CN107202185A (en) | 2017-06-27 | 2017-06-27 | Check-valves being sealed a kind of water hammer-resistant multiple flow passages more |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107202185A true CN107202185A (en) | 2017-09-26 |
Family
ID=59908239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710500791.8A Pending CN107202185A (en) | 2017-06-27 | 2017-06-27 | Check-valves being sealed a kind of water hammer-resistant multiple flow passages more |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107202185A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220019A (en) * | 2019-07-10 | 2019-09-10 | 上海沪工阀门厂(集团)有限公司 | A kind of check-valves |
| CN110285259A (en) * | 2019-06-20 | 2019-09-27 | 新春仪表（常熟）有限公司 | A kind of electropneumatic valve positioner reducing stress |
| JPWO2019167586A1 (en) * | 2018-02-28 | 2021-01-07 | 株式会社テイエルブイ | Shock absorber |
| CN112728170A (en) * | 2020-12-31 | 2021-04-30 | 五洲阀门股份有限公司 | Fine-adjustment slow-closing check valve |
| CN113339552A (en) * | 2021-07-12 | 2021-09-03 | 深圳市金力洁净设备安装有限公司 | Clean compressed air conveying pipeline system |
| CN114484020A (en) * | 2022-01-26 | 2022-05-13 | 宁波一机阀门制造有限公司 | Suspension type double-seat metal hard sealing check valve without shaft and sleeve |
-
2017
- 2017-06-27 CN CN201710500791.8A patent/CN107202185A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2019167586A1 (en) * | 2018-02-28 | 2021-01-07 | 株式会社テイエルブイ | Shock absorber |
| JP7311896B2 (en) | 2018-02-28 | 2023-07-20 | 株式会社テイエルブイ | shock absorber |
| CN110285259A (en) * | 2019-06-20 | 2019-09-27 | 新春仪表（常熟）有限公司 | A kind of electropneumatic valve positioner reducing stress |
| CN110220019A (en) * | 2019-07-10 | 2019-09-10 | 上海沪工阀门厂(集团)有限公司 | A kind of check-valves |
| CN112728170A (en) * | 2020-12-31 | 2021-04-30 | 五洲阀门股份有限公司 | Fine-adjustment slow-closing check valve |
| CN113339552A (en) * | 2021-07-12 | 2021-09-03 | 深圳市金力洁净设备安装有限公司 | Clean compressed air conveying pipeline system |
| CN114484020A (en) * | 2022-01-26 | 2022-05-13 | 宁波一机阀门制造有限公司 | Suspension type double-seat metal hard sealing check valve without shaft and sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170926 |