CN202360817U - One-way air suction valve - Google Patents
One-way air suction valve Download PDFInfo
- Publication number
- CN202360817U CN202360817U CN2011204619582U CN201120461958U CN202360817U CN 202360817 U CN202360817 U CN 202360817U CN 2011204619582 U CN2011204619582 U CN 2011204619582U CN 201120461958 U CN201120461958 U CN 201120461958U CN 202360817 U CN202360817 U CN 202360817U
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- CN
- China
- Prior art keywords
- valve
- flap
- air suction
- spring
- high speed
- 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.)
- Expired - Lifetime
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a one-way air suction valve, which is mounted on a water delivery pipeline or container and comprises a valve body, a valve bonnet, a high-speed air suction hole and a valve clack with a spring. A pressure plate is arranged above the valve body and is fixed via screws, a valve seat is arranged on the inner wall of a valve opening of the valve body and is sealed with the valve clack via a sealing ring, and the valve clack vertically moves via the spring, so that the high-speed air suction hole of the air suction valve keeps closed or keeps ventilated. The valve only has a high-speed air suction function under negative pressure, but does not have a high-speed exhaust function under positive pressure, can effectively suck air to break vacuum, and accordingly meets certain special requirements of pipeline systems. A filter screen can prevent dust or other media from entering the one-way air suction valve.
Description
Technical field
The utility model relates to a kind of one-way sucting valve, relates in particular to a kind of high speed negative inspiratory pressure valve with vacuum breaking ability.
Background technique
Existing outlet valve all has high speed air inlet function and high speed degassing function; Its high speed suction port and high speed relief opening are same aperture; Intake and exhaust aperture ratio is 1: 1; Can high speed air-breathing again can the high speed exhaust, be one can two-way flow air valve, can not satisfy the air-breathing extraordinary requirement of the unidirectional high speed of a special occasions needs.
The model utility content
The problem that the utility model will solve provide a kind of only can be at the air-breathing and one-way sucting valve of high speed exhaust under positive pressure of high speed under the negative pressure; Satisfy the ventilation requirement under the extraordinary situation in the water circuit system, especially when the vacuum breaking and the safety protection problem that take place under the negative pressure condition.
For solving the problems of the technologies described above; The utility model adopts following technological scheme: a kind of one-way sucting valve, and this Aspirating valves is installed on water transport pipeline or the container, comprises valve body, valve gap, the air-breathing aperture of high speed and has the flap of spring; Said valve body top is provided with pressing plate; This pressing plate is fixed on the valve body through bolt and nut, and said valve interior wall is provided with valve seat, and this valve seat and flap are through the seal ring sealing; Said flap moves up and down along center rail through spring, makes the Aspirating valves sealing or open the air-breathing aperture of high speed to make it to keep shut or aeration status;
Said flap is arranged in the main passage; Two are acting on atmospheric pressure and spring jacking force respectively about it; The direction of making a concerted effort of atmospheric pressure and spring jacking force is used to determine moving up and down of flap with size, this valve is kept shut or opens air intake passage or regulates gettering quantity.
This Aspirating valves has jacking formula flap valve seat construction, and guaranteeing can the high speed exhaust.
When system pressure was increased near atmospheric pressure but still is in micro-vacuum state, the spring jacking force just overcame the flap deadweight and closes the aperture with making a concerted effort of external and internal pressure difference, stops suction, and does not also allow exhaust; Have the air-breathing function of high speed under negative pressure and high speed degassing function under positive pressure not, can effective air-breathing destruction vacuum, thus satisfy some specific (special) requirements of pipe-line system, be a kind of novel vacuum breaking and negative pressure protective equipment.
Be connected through bolt and nut between said valve body and the valve gap.
Said high speed is equipped with filter screen in the air-breathing aperture.
Adopt technique scheme, compared with prior art, the advantage that the utility model had is following;
When pipeline draining or other reasons cause occurring in the system little negative pressure (1kPa～-3kPa) time, the flap of high speed Aspirating valves is descended by the pushing of ambient atmosphere pressure, valve port is opened, and is air-breathing in a large number, destroys vacuum, plays balance pressure, destroys the effect of vacuum; When system pressure was increased near atmospheric pressure but still is in micro-vacuum state, just overcoming the flap deadweight with joint efforts and closing the aperture of spring jacking force and valve external and internal pressure difference stopped suction, and also do not allow exhaust; Make this valve only have the air-breathing function of high speed under negative pressure and high speed degassing function under positive pressure not, can effective air-breathing destruction vacuum, thus satisfy some specific (special) requirements of pipe-line system, be a kind of novel vacuum breaking and negative pressure protective equipment.
Description of drawings
Fig. 1 is the closed condition structure sectional view of the utility model;
Fig. 2 is the aeration status structure sectional view of the utility model.
Among the figure: 1, valve body, 2, spring, 3, flap, 4, seal ring, 5, valve seat, 6, pressing plate, 7, the air-breathing aperture of high speed, 8, filter screen, 9, valve gap.
Embodiment
As shown in Figure 1; Aspirating valves comprises valve body 1, valve gap 9, the air-breathing aperture 7 of high speed and has the flap 3 of spring 2, and valve body 1 top is provided with pressing plate 6, and pressing plate 6 is fixed on the valve body 1 through bolt and nut; Valve body 1 valve port inwall is provided with valve seat 5; Valve seat 5 and flap 3 be through seal ring 4 sealings, and flap 3 moves up and down along center rail through spring 2, makes the Aspirating valves sealing or open the air-breathing aperture 7 of high speed to keep shut or aeration status; High speed is equipped with filter screen 8 in the air-breathing aperture 7, prevents that dust or other foreign material from getting into.
Embodiment one: as shown in Figure 2, during for draining, the water column of some position can produce separation in the system termination of pumping suddenly or throttle down or people; Vacuum (negative pressure) appears in the system; Outside pressure is greater than internal pressure at this moment, and Aspirating valves contained spring 2 is by ambient air pressure and flap deadweight extruding, and the flap 3 on the spring 2 moves down; Air intake passage is opened; Air passes through the air-breathing aperture 7 of high speed of negative inspiratory pressure valve from getting into fast all around, and it is minimum that the interior negative pressure of pipe is dropped to, with the Security of assurance pipe fitting and sealed interface.
Embodiment two: as shown in Figure 1, when system pressure was increased near atmospheric pressure but still is in micro-vacuum state, spring 2 jacking forces just overcame flap 3 deadweights and close the aperture; Stop suction; Do not allow exhaust yet, make this valve only have the air-breathing function of high speed under negative pressure and high speed degassing function under positive pressure not, can effective air-breathing destruction vacuum; Thereby satisfying some specific (special) requirements of pipe-line system, is a kind of novel vacuum breaking and negative pressure protective equipment.
Claims (3)
1. one-way sucting valve; This Aspirating valves is installed on water transport pipeline or the container; It is characterized in that: comprise valve body (1), valve gap (9), the air-breathing aperture of high speed (7) and have the flap (3) of spring (2), said valve body (1) top is provided with pressing plate (6), and this pressing plate (6) is fixed on the valve body (1) through bolt and nut; Said valve body (1) inwall is provided with valve seat (5); This valve seat (5) seals through seal ring (4) with flap (3), and said flap (3) moves up and down along center rail through spring (2), makes the Aspirating valves sealing or open the air-breathing aperture of high speed (7) to make it to keep shut or aeration status.
2. one-way sucting valve according to claim 1; It is characterized in that: said flap (3) is arranged in the main passage; Two are acting on atmospheric pressure and spring jacking force respectively about it; The direction of making a concerted effort of atmospheric pressure and spring jacking force is used to determine moving up and down of flap with size, this valve is kept shut or opens air intake passage or regulates gettering quantity.
3. one-way sucting valve according to claim 1 is characterized in that: this Aspirating valves has jacking formula flap valve seat construction, and guaranteeing can the high speed exhaust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204619582U CN202360817U (en) | 2011-11-18 | 2011-11-18 | One-way air suction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204619582U CN202360817U (en) | 2011-11-18 | 2011-11-18 | One-way air suction valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360817U true CN202360817U (en) | 2012-08-01 |
Family
ID=46572005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204619582U Expired - Lifetime CN202360817U (en) | 2011-11-18 | 2011-11-18 | One-way air suction valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804031A (en) * | 2016-04-08 | 2016-07-27 | 河海大学 | Novel tail water tunnel ventilation hole structure |
| CN113134338A (en) * | 2021-05-25 | 2021-07-20 | 兰州金通储能动力新材料有限公司 | Ammonia gas recovery device capable of achieving air exchange |
-
2011
- 2011-11-18 CN CN2011204619582U patent/CN202360817U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804031A (en) * | 2016-04-08 | 2016-07-27 | 河海大学 | Novel tail water tunnel ventilation hole structure |
| CN113134338A (en) * | 2021-05-25 | 2021-07-20 | 兰州金通储能动力新材料有限公司 | Ammonia gas recovery device capable of achieving air exchange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180319 Address after: Industrial District, Zhuji Town, Zhejiang Patentee after: ZHEJIANG DUNAN INTELLIGENT CONTROL TECHNOLOGY CO., LTD. Address before: Futian District Shenzhen City, Guangdong Province, 518034 North Road No. 7003 building 1706 China Patentee before: Shenzhen Hualida Electromechanical Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |
|
| CX01 | Expiry of patent term |