CN105156742A - Exhaust valve - Google Patents
Exhaust valve Download PDFInfo
- Publication number
- CN105156742A CN105156742A CN201510593178.6A CN201510593178A CN105156742A CN 105156742 A CN105156742 A CN 105156742A CN 201510593178 A CN201510593178 A CN 201510593178A CN 105156742 A CN105156742 A CN 105156742A
- Authority
- CN
- China
- Prior art keywords
- valve body
- relief opening
- valve
- outlet valve
- sealing gasket
- 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.)
- Granted
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Classifications
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
- F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
- F16K31/22—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve with the float rigidly connected to the valve
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses an exhaust valve, relating to the technical field of valves. The exhaust valve comprises a valve body provided with a cavity, wherein the valve body is provided with an exhaust port communicated with the cavity; a floating ball is arranged in the cavity and fixed to the middle part of a guide bar; the guide bar can move up and down relative to the valve body along the axial line of the exhaust port, and can control the closing between the floating ball and a sealing element arranged on the lower end of the exhaust port to form a seal; the upper part of the guide bar is provided with an elastic seal gasket; and during or before the formation of the seal between the floating ball and the sealing element, the elastic seal gasket can form a seal fit with a bulge arranged on the inner wall of the exhaust port. The exhaust valve disclosed by the invention can overcome the phenomenon of leakage due to no pressure or lower pressure inside the exhaust valve in the past, thereby ensuring the sealability of the exhaust valve, and preventing waste of resources, environmental disruption or safety accidents.
Description
Technical field
The present invention relates to valve technology field, particularly relate to a kind of outlet valve.
Background technique
Outlet valve is applied to the pipeline air exhaust waters such as independent heating system, central heating system, heating boiler, central air-conditioner, floor heating and solar heating system.Because be usually all dissolved with certain air in water, and the solubility of air reduces along with the rising of temperature, such water gas in the process of circulation is separated gradually from water, and the bubble even gas column that formation of getting together gradually is large, because there be supplementing of water, so often there is gas to produce, therefore needs, outlet valve is set on pipeline and is exhausted.
General heavy caliber rapid escape valve possesses the function of gas in quick purging line, but when ducted hypotony (being less than 0.02MPa), the power acted on ball float reduces, sealing force deficiency between ball float and seal ring causes the seal pressure between sealing pair little, medium in valve body easily oozes out between ball float and seal ring, thus causes the relief opening generation phenomenon of leakage.Therefore, after a lot of large-scale water supply project stops water supply, the outlet valve that pipeline is installed leaks until medium liquid level stops lower than during relief opening in outlet valve due to manifold pressure decline, wastes great lot of water resources, and impacts environment or cause security incident.
Summary of the invention
The object of the invention is to propose a kind of outlet valve, can in pipeline without pressure or pressure low time can not produce leakage phenomenon.
For reaching this object, the present invention by the following technical solutions:
A kind of outlet valve, comprise the valve body being provided with cavity, described valve body is provided with relief opening and is communicated with described cavity, ball float is provided with in described cavity, described ball float is fixed in the middle part of guide rod, described guide rod can move up and down along the relatively described valve body of the axis of described relief opening, control closed formation between described ball float and the Sealing being arranged on relief opening lower end to seal, also elastic sealing gasket is provided with on the top of described guide rod, ball float and described Sealing formed seal while or before, described elastic sealing gasket can be sealed and matched with being arranged at convexing to form on the inwall of described relief opening.
Further technological scheme, the external diameter of described elastic sealing gasket is greater than the diameter of described relief opening.
Further technological scheme, the edge of described elastic sealing gasket is provided with hook formation, and described hook formation matches with described projection.
Further technological scheme, is also provided with protection holder in described cavity, described protection holder is located between the peripheral described protection holder of described ball float and described valve body exists space.
Further technological scheme, described protection backing portion is provided with the first pilot hole, and described guide rod through described first pilot hole, and can move back and forth along the relatively described protection holder of the axis of described relief opening.
Further technological scheme, described valve body is provided with the second pilot hole, and described guide rod is simultaneously through described first pilot hole and the second pilot hole.
Further technological scheme, described valve body is provided with hollow out top cover, and described second pilot hole is located on described hollow out top cover.
Further technological scheme, described valve body comprises the valve gap above valve body body and described valve body body, and described valve gap is provided with described relief opening, and described Sealing is fixed on described valve gap.
Further technological scheme, described Sealing is fixed on described valve gap by fixed cover, and described projection is opened on the inwall of described fixed cover.
Further technological scheme, described projection is annular projection.
Beneficial effect of the present invention:
The outlet valve that the present invention proposes, the Sealing comprising ball float and be mated, also comprise elastic sealing gasket, elastic sealing gasket is located at the top of guide rod, when valve inner without pressure or pressure little when cause leak between ball float and Sealing time, elastic sealing gasket can with the male cooperation of relief opening inwall, ensure the sealing of outlet valve, the leakage of interior media can be prevented, prevent the wasting of resources, prevent the generation of security incident, prevent environmental deterioration.
Accompanying drawing explanation
Fig. 1 be the embodiment of the present invention 1 provide outlet valve exhaust time structural representation;
Fig. 2 be the embodiment of the present invention 1 provide exhaust valve sealing time structural representation;
Fig. 3 be the embodiment of the present invention 2 provide outlet valve exhaust time structural representation;
Fig. 4 be the embodiment of the present invention 2 provide exhaust valve sealing time structural representation;
Fig. 5 is the structural representation of the valve gap plan view that the embodiment of the present invention 2 provides.
Wherein, 101, valve body; 102, cavity; 103, relief opening; 104, ball float; 105, guide rod; 106, Sealing; 107, elastic sealing gasket; 108, protruding; 109, hook formation; 110, protection holder; 111, the first pilot hole; 112 valve body bodies; 113, valve gap; 114, fixed cover; 205, guide rod; 215, the second pilot hole; 216, hollow out top cover.
Embodiment
Technological scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Embodiment 1
As shown in Figure 1, a kind of outlet valve, comprise the valve body 101 being provided with cavity 102, valve body 101 is provided with relief opening 103 and is communicated with cavity 102, ducted gas is discharged by relief opening 103 through cavity 102, ball float 104 is provided with in cavity 102, ball float 104 is fixed in the middle part of guide rod 105, guide rod 105 can move up and down along the relative valve body 101 of the axis of relief opening 103, control closed formation between ball float 104 and the Sealing 106 being arranged on relief opening 103 lower end to seal, elastic sealing gasket 107 is also provided with on the top of guide rod 105, ball float 104 and Sealing 106 formed seal while or before, elastic sealing gasket 107 can be formed with the projection 108 be arranged on relief opening 103 inwall and be sealed and matched, ensure when outlet valve inside without pressure or pressure less time, prevent the sealing defective tightness between ball float 104 and Sealing 106 and leakage phenomenon occurs.Wherein valve body 101 can be integratedly also can be divided into valve body body 112 and valve gap 113, is convenient to dismounting and change.Above-mentioned Sealing 106 can be chosen as seal ring, can also select other seal element as the case may be; Above-mentioned protruding 108 are preferably annular projection, ensure that the contact range between protruding 108 and sealing gasket 107, can improve sealing.
For ensureing that elastic sealing gasket 107 realizes the effect of anti-leak, the external diameter of preferred elastomeric sealing gasket 107 is greater than the diameter of relief opening 103.Because the external diameter of elastic sealing gasket 107 is larger, elastic sealing gasket 107 produces distortion under the squeezing action of relief opening 103 inwall, active force is mutual, elastic sealing gasket 107 pairs of relief opening 103 inwalls are applied with pressure, this is designated as pressure P o, ensure that, between elastic sealing gasket 107 and relief opening 103 inwall, there is enough sealings, even if do not seal between ball float 104 and Sealing 106, by cooperatively interacting between elastic sealing gasket 107 and relief opening 103 inwall, enough sealing effects can be formed.
The edge of elastic sealing gasket 107 is provided with hook formation 109, hook formation 109 matches with protruding 108, can prevent sealing gasket 107 from deviating from relief opening 103, as shown in Figure 2, when because outlet valve inner without pressure or pressure less time, elastic sealing gasket 107 is subject to the pressure by the medium of seepage between Sealing 106 and ball float 104, the hook formation 109 at elastic sealing gasket 107 edge catches on protruding 108, elastic sealing gasket 107 intermediate portion is outstanding to the direction away from ball float 104, in this process, the amount of deformation of elastic sealing gasket 107 increases, now, the pressure that the surface of contact of elastic sealing gasket 107 and relief opening 103 inwall is subject to increases to Pm, wherein Pm=Po+Pp, in formula, Pp is elastic sealing gasket 107 to the pressure passing to relief opening 103 inwall away from the elastic sealing gasket 107 increased in the outstanding deformation process in ball float 104 direction, in Pp=KP formula, K represents pressure carry-over factor, P is the pressure that sealed medium acts on elastic sealing gasket 107, the material of elastic sealing gasket 107 is chosen as the material of corresponding K >=1, so Pm > Po, elastic sealing gasket 107 for rubber make time, corresponding K=1, Pm > Po can be realized, therefore when there being the medium osmosis in pipeline to cross Sealing 106 and ball float 104, interaction force between elastic sealing gasket 107 and relief opening 103 comparatively No leakage time larger, therefore in outlet valve without pressure or pressure less elastic sealing gasket 107 and relief opening 103 inwall between can realize leak free sealing, can prevent elastic sealing gasket 107 from deviating from relief opening 103 with hook formation 109 simultaneously, ensure that soundness and the stability of structure.
In order to protect ball float 104 directly washing away by gas or medium; protection holder 110 is also provided with in cavity 102; protection holder 110 is located between the protection holder 110 of ball float 104 periphery and valve body 101 exists space; the gentle body of medium can flow in corresponding space, and the structure of protection holder 110 may be selected to be cupula or other shapes as the case may be.
Be provided with the first pilot hole 111 bottom protection holder 110, guide rod 105 through the first pilot hole 111, and can protect holder 110 to move back and forth along the axis of relief opening 103 relatively.
Be provided with the first pilot hole 111 bottom protection holder 110, guide rod 105 through the first pilot hole 111, and can move back and forth along the relative valve body 101 of the axis of relief opening 103, can ensure the accurate fit of elastic sealing gasket 107 and relief opening 103.
Particularly, valve body is divided into valve body body 112 and valve gap 113, is located at by relief opening 103 on valve gap 113, and Sealing 106 is also fixed on valve gap 113, Sealing 106 is fixed on described valve gap 113 by fixed cover 114, and protruding 108 are opened on the inwall of fixed cover 114.Valve gap 113 and valve body body 112 are provided separately, and when the structural failure that valve gap 113 is arranged, can distinguish repair and replacement, need not change whole valve body 101, can be cost-saving.
When the exhaust valve is opened, gas is discharged from relief opening 103, as illustrated by the arrows in fig. 1; When outlet valve needs sealing, as shown in Figure 2, ball float 104 and elastic sealing gasket 107 move to relief opening 103 direction with guide rod 105, when elastic sealing gasket 107 touches the inwall of relief opening 103, size due to elastic sealing gasket 107 is greater than the diameter of described relief opening 103 inwall, the inwall of elastic sealing gasket 107 pairs of relief openings 103 applies pressure P o, and therefore elastic sealing gasket 107 pairs of relief openings 103 create sealing; When the air pressure in outlet valve is lower, when having interior media to ooze out between ball float 104 and Sealing 106 or leak, interior media is between ball float 104 and elastic sealing gasket 107, less power is applied with to elastic sealing gasket 107, make elastic sealing gasket 107 to the outstanding distortion in relief opening 103 direction, because elastic sealing gasket 107 there occurs further distortion, the pressure of elastic sealing gasket 107 pairs of relief opening 103 inwalls increases, sealing strengthens further, achieves the object of Leakage prevention.
Embodiment 2
The structure basic simlarity of the present embodiment and embodiment 1, difference is, as shown in Figures 3 and 4, valve body 101 is provided with the second pilot hole 215, and guide rod 205 is simultaneously through described first pilot hole 111 and the second pilot hole 215, and guide rod 205 two ends have pilot hole to lead, ensure that outlet valve is in opening and closing process, coordinating more accurately between elastic sealing gasket 107 with relief opening 103, and ensure that the stability that guide rod 205 runs, opening and closing process is more smooth and easy.
As shown in Figure 5, valve body 101 is provided with hollow out top cover 216, second pilot hole 215 and is located on hollow out top cover 216.Discharge from hollow out top cover 216 during exhaust, ensure that exhaust effect; Hollow out top cover 216 also can removably connect with valve body 101 with valve body 101 is one-body molded; in the present embodiment, valve body 101 comprises valve body body 112 and valve gap 113; hollow out top cover 216 is located on valve gap 113; hollow out top cover 216 is one-body molded with valve gap 113; but removably connect mode also in protection scope of the present invention, when other second pilot hole 215 weares and teares or needs to change, by changing hollow out top cover 216; it is convenient to change, and need not change valve gap 113.
Obviously, the above embodiment of the present invention is only to clearly demonstrate example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (10)
1. an outlet valve, comprise the valve body (101) being provided with cavity (102), described valve body (101) is provided with relief opening (103) and is communicated with described cavity (102), ball float (104) is provided with in described cavity (102), described ball float (104) is fixed on guide rod (105, 205) middle part, described guide rod (105, 205) can move up and down along the relatively described valve body (101) of the axis of described relief opening (103), control closed formation between described ball float (104) and the Sealing (106) being arranged on relief opening (103) lower end to seal, it is characterized in that, at described guide rod (105, 205) top is also provided with elastic sealing gasket (107), ball float (104) and described Sealing (106) formed seal while or before, described elastic sealing gasket (107) can be formed with the projection be arranged on the inwall of described relief opening (103) (108) and be sealed and matched.
2. outlet valve according to claim 1, is characterized in that, the external diameter of described elastic sealing gasket (107) is greater than the diameter of described relief opening (103).
3. outlet valve according to claim 2, is characterized in that, the edge of described elastic sealing gasket (107) is provided with hook formation (109), and described hook formation (109) matches with described projection (108).
4. according to the arbitrary described outlet valve of claim 1-3; it is characterized in that; also be provided with protection holder (110) in described cavity (102), described protection holder (110) is located between peripheral described protection holder (110) of described ball float (104) and described valve body (101) exists space.
5. outlet valve according to claim 4; it is characterized in that; described protection holder (110) bottom is provided with the first pilot hole (111); described guide rod (105; 205) through described first pilot hole (111), and can move back and forth along relatively described protection holder (110) of the axis of described relief opening (103).
6. outlet valve according to claim 5, it is characterized in that, described valve body (101) is provided with the second pilot hole (215), and described guide rod (205) is simultaneously through described first pilot hole (111) and the second pilot hole (215).
7. outlet valve according to claim 6, is characterized in that, described valve body (101) is provided with hollow out top cover (216), and described second pilot hole (215) is located on described hollow out top cover (216).
8. according to the arbitrary described outlet valve of claim 1-3 or 5-7, it is characterized in that, described valve body (101) comprises the valve gap (113) of valve body body (112) and described valve body body (112) top, described valve gap (113) is provided with described relief opening (103), and described Sealing (106) is fixed on described valve gap (113).
9. outlet valve according to claim 8, it is characterized in that, described Sealing (106) is fixed on described valve gap (113) by fixed cover (114), and described projection (108) is opened on the inwall of described fixed cover (114).
10., according to the arbitrary described outlet valve of claim 1-3, it is characterized in that, described projection (108) is annular projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510593178.6A CN105156742B (en) | 2015-09-17 | 2015-09-17 | A kind of air bleeding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510593178.6A CN105156742B (en) | 2015-09-17 | 2015-09-17 | A kind of air bleeding valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105156742A true CN105156742A (en) | 2015-12-16 |
| CN105156742B CN105156742B (en) | 2018-07-20 |
Family
ID=54797710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510593178.6A Active CN105156742B (en) | 2015-09-17 | 2015-09-17 | A kind of air bleeding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105156742B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612904A (en) * | 2018-07-18 | 2018-10-02 | 天津市国威给排水设备制造有限公司 | Combined type air inlet and exhaust valve |
| CN112443973A (en) * | 2019-08-29 | 2021-03-05 | 青岛经济技术开发区海尔热水器有限公司 | Exhaust device and water heater |
| CN113090786A (en) * | 2021-03-08 | 2021-07-09 | 海南立昇净水科技实业有限公司 | One-way non-return exhaust valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057281Y (en) * | 2007-07-19 | 2008-05-07 | 吴雳鸣 | Elastic double-sealing balancing floater type bidirectional air valve |
| CN102062253A (en) * | 2010-11-26 | 2011-05-18 | 王旭华 | Automatic vent valve capable of replacing supporting point |
| CN102135186A (en) * | 2010-01-21 | 2011-07-27 | 刘永 | Anti-theft intelligent air release valve |
| CN202381818U (en) * | 2011-11-08 | 2012-08-15 | 姜博生 | Double-sealing leakage-preventive exhaust valve for sewage |
| CN202531987U (en) * | 2012-01-12 | 2012-11-14 | 铜陵国方水暖科技有限责任公司 | Combined vent valve |
| CN103644356A (en) * | 2013-11-28 | 2014-03-19 | 山东建华阀门制造有限公司 | Suction and exhaust valve |
| CN203500633U (en) * | 2013-10-21 | 2014-03-26 | 哈尔滨庆功林泵业股份有限公司 | Ball float valve with guiding, water stopping and ventilating functions |
| CN204961988U (en) * | 2015-09-17 | 2016-01-13 | 天津市国威给排水设备制造有限公司 | Exhaust valve |
-
2015
- 2015-09-17 CN CN201510593178.6A patent/CN105156742B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057281Y (en) * | 2007-07-19 | 2008-05-07 | 吴雳鸣 | Elastic double-sealing balancing floater type bidirectional air valve |
| CN102135186A (en) * | 2010-01-21 | 2011-07-27 | 刘永 | Anti-theft intelligent air release valve |
| CN102062253A (en) * | 2010-11-26 | 2011-05-18 | 王旭华 | Automatic vent valve capable of replacing supporting point |
| CN202381818U (en) * | 2011-11-08 | 2012-08-15 | 姜博生 | Double-sealing leakage-preventive exhaust valve for sewage |
| CN202531987U (en) * | 2012-01-12 | 2012-11-14 | 铜陵国方水暖科技有限责任公司 | Combined vent valve |
| CN203500633U (en) * | 2013-10-21 | 2014-03-26 | 哈尔滨庆功林泵业股份有限公司 | Ball float valve with guiding, water stopping and ventilating functions |
| CN103644356A (en) * | 2013-11-28 | 2014-03-19 | 山东建华阀门制造有限公司 | Suction and exhaust valve |
| CN204961988U (en) * | 2015-09-17 | 2016-01-13 | 天津市国威给排水设备制造有限公司 | Exhaust valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612904A (en) * | 2018-07-18 | 2018-10-02 | 天津市国威给排水设备制造有限公司 | Combined type air inlet and exhaust valve |
| CN108612904B (en) * | 2018-07-18 | 2024-01-26 | 天津市国威给排水设备制造有限公司 | Combined air inlet and outlet valve |
| CN112443973A (en) * | 2019-08-29 | 2021-03-05 | 青岛经济技术开发区海尔热水器有限公司 | Exhaust device and water heater |
| CN113090786A (en) * | 2021-03-08 | 2021-07-09 | 海南立昇净水科技实业有限公司 | One-way non-return exhaust valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105156742B (en) | 2018-07-20 |
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