CN201487311U - Exhaust valve with single nozzle - Google Patents
Exhaust valve with single nozzle Download PDFInfo
- Publication number
- CN201487311U CN201487311U CN2009201922896U CN200920192289U CN201487311U CN 201487311 U CN201487311 U CN 201487311U CN 2009201922896 U CN2009201922896 U CN 2009201922896U CN 200920192289 U CN200920192289 U CN 200920192289U CN 201487311 U CN201487311 U CN 201487311U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- flap
- pipeline
- disk
- 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 - Fee Related
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Abstract
The utility model relates to an exhaust valve with a single valve, comprising a valve body, a valve disk, a valve cap and a valve seat. The exhaust valve is mainly characterized in that the valve body is internally provided with a bracket; the lower end of the bracket is fixedly connected with the internal wall at the inlet side of the valve body; the internal wall of the valve body is provided with guide ribs uniformly; the valve disk is made of ABS engineering plastic; the center of the valve disc is provided with a closed chamber; and the upper plane of the valve disk is internally provided with a valve disk sealing ring that is movably arranged between the upper plane of the bracket and the guide rib. As the ABS engineering plastic has approximate specific gravity with water, the valve disk has thicker wall thickness, strong pressure bearing capability and a nominal pressure up to PN4.0 MPa, and has the advantage of high working pressure. The exhaust valve is applicable to water supply and drainage systems; and when the air gathered in a pipeline is exhausted and the pipeline has negative pressure internally, the exhaust valve absorbs ambient air and ensures the safety of the pipeline.
Description
Technical field
The utility model relates to a kind of valve, particularly about a kind of outlet valve.The utility model is applicable in the supply and drain water system, is used for getting rid of the air in the pipeline.
Background technique
In the ordinary course of things, contain dissolved air in the water, in the water delivery process, these air accumulate in the height point place of pipeline by constantly discharging in the water, form air bag the conveyance power of water of system is descended, therefore at water-carriage system outlet valve is installed, is used for getting rid of dissolved air.Existing outlet valve is generally by an oval valve body; ball float, lever, thick stick frame, valve seat that stainless steel material is made are set in the valve body; be installed on the eminence that pumps the mouth of a river or water-carriage system; get rid of the air that gathers in the pipeline; in a single day and when in pipe, having negative pressure to produce; this valve sucks ambient air rapidly, with the damage that the protection pipeline is produced because of negative pressure, guarantees pipeline safety.Its deficiency is that ball float adopts stainless steel material, in order to guarantee buoyancy, the wall thickness of ball float is all very thin, when ball float is in closed condition under medium buoyancy and pressure effect, can produce very big stress between the annulus area of ball float and sealing surface of seat, when this stress surpasses the limit of elasticity of ball float, can make ball float produce local deformation, influence the proper functioning of outlet valve.Therefore, the maximum nominal pressure of existing outlet valve is limited in below the PN2.5MPa, and working pressure is lower.
Summary of the invention
The purpose of this utility model is the deficiency that exists at prior art, provides a kind of working pressure high Single Opening Exhaust Valves.
The technical solution of the utility model comprises valve body, flap, valve gap, valve seat, and valve seat is installed between valve body and the valve gap, and the valve seat center is shaped on through hole, and valve gap is provided with ventilating hole.Mainly be to be provided with a support in the valve body, the lower end of support is fixedly connected on valve body suction side inwall, and valve interior wall evenly is shaped on guiding rib.Flap adopts the ABS engineering plastic materials, and the center is shaped on airtight cavity, is provided with the flap seal ring in the last plane, and activity is placed on the support between the plane and guiding rib.
In above technological scheme, valve body, support are cylindrical shape, and flap is cylindrical.
The utility model advantage compared with prior art is that flap adopts the ABS engineering plastic materials to make, make airtight cavity at the center, because of the proportion of the proportion of ABS engineering plastic materials and water close, so flap has thicker wall thickness, its bearing capacity is strong, nominal pressure can reach PN4.0MPa, has the high advantage of working pressure.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Single Opening Exhaust Valves as shown in Figure 1, valve body 1, flap 3, valve gap 7, valve seat 5.Valve seat 5 is installed between valve body 1 and the valve gap 7, and valve seat 5 centers are shaped on through hole, and establish O-ring seals 4 between the valve body 1, and valve gap 7 is provided with ventilating hole.Be provided with a support 2 in the valve body 1, the lower end of support 2 is fixedly mounted on the inwall of valve body 1 suction side, and sidewall has opening, guarantees necessary medium circulation area.Valve body 1 inwall evenly is shaped on guiding rib 8.Flap 3 adopts the ABS engineering plastic materials, and the center is shaped on airtight cavity, because of the proportion of the proportion of ABS engineering plastic materials and water is close, so flap 3 has thicker wall thickness, keeps bigger bearing capacity.Be provided with flap seal ring 6 on the flap 3 in the plane, activity is placed on the support 2 between the plane and guiding rib 8.The periphery of flap 3 and guiding rib 8 activity contact matching, the location when keeping it to move up and down has enough clearance spaces between adjacent guiding rib 8 and valve body 1 and the flap 3, to satisfy the gas purging area.Described flap seal ring 6 and valve seat 5 fitted seal, when flap 3 was closed under medium buoyancy and pressure effect, flap seal ring 6 contact valve seat 5 was earlier realized the low-pressure states sealing, when pressure increases gradually, the last plane of flap 3 and valve seat 5 contact seals.Valve body 1, support 2 are cylindrical shape, and flap 3 is cylindrical.
Claims (2)
1. Single Opening Exhaust Valves, comprise valve body (1), flap (3), valve gap (7), valve seat (5), valve seat (5) is installed between valve body (1) and the valve gap (7), valve seat (5) center is shaped on through hole, valve gap (7) is provided with ventilating hole, it is characterized in that being provided with in the valve body (1) support (2), the lower end of support (2) is fixedly connected on valve body (1) suction side inwall, valve body (1) inwall evenly is shaped on guiding rib (8), flap (3) adopts the ABS engineering plastic materials, the center is shaped on airtight cavity, is provided with flap seal ring (6) in the last plane, and activity is placed in support (2) and goes up between plane and the guiding rib (8).
2. Single Opening Exhaust Valves according to claim 1 is characterized in that valve body (1), support (2) are cylindrical shape, and flap (3) is a cylindrical structural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201922896U CN201487311U (en) | 2009-08-31 | 2009-08-31 | Exhaust valve with single nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201922896U CN201487311U (en) | 2009-08-31 | 2009-08-31 | Exhaust valve with single nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487311U true CN201487311U (en) | 2010-05-26 |
Family
ID=42426190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201922896U Expired - Fee Related CN201487311U (en) | 2009-08-31 | 2009-08-31 | Exhaust valve with single nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487311U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807470A (en) * | 2012-11-01 | 2014-05-21 | 浙江正华阀门厂 | Combined valve of gate valve and check valve |
| CN112483661A (en) * | 2020-12-17 | 2021-03-12 | 东方电气集团东方电机有限公司 | Exhaust structure suitable for generator lubricating oil circulation pipeline system |
-
2009
- 2009-08-31 CN CN2009201922896U patent/CN201487311U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807470A (en) * | 2012-11-01 | 2014-05-21 | 浙江正华阀门厂 | Combined valve of gate valve and check valve |
| CN112483661A (en) * | 2020-12-17 | 2021-03-12 | 东方电气集团东方电机有限公司 | Exhaust structure suitable for generator lubricating oil circulation pipeline system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20140831 |
|
| EXPY | Termination of patent right or utility model |