CN105422881B - A kind of labyrinth type discharge valve flap - Google Patents
A kind of labyrinth type discharge valve flap Download PDFInfo
- Publication number
- CN105422881B CN105422881B CN201510621406.6A CN201510621406A CN105422881B CN 105422881 B CN105422881 B CN 105422881B CN 201510621406 A CN201510621406 A CN 201510621406A CN 105422881 B CN105422881 B CN 105422881B
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- CN
- China
- Prior art keywords
- bottom part
- flap
- adjusting
- type discharge
- labyrinth type
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- 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.)
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Safety Valves (AREA)
Abstract
The present invention provides a kind of labyrinth type discharge valve flap, including main body, body exterior is equipped with the guide surface of cylinder, and bottom part body is equipped with sealing surface, and hollow top cavity is formed above bottom part body, and the guide surface of the body exterior is equipped with circumferential ring-shaped groove；The sealing surface outer ring of the bottom part body is equipped with the adjusting passage for penetrating through the bottom part body, adjusts channel middle attachment screw passage.Device provided by the invention overcomes the deficiencies in the prior art; flap is not only reduced with being oriented to the frictional force of inner room; and equipment actual condition can be protected according to bleeder valve; effective adjustment control is carried out to bleeder valve blow pressure; on the basis of bleeder valve sealing performance is improved, the safety and reliability of bleeder valve ensure that.
Description
Technical field
The present invention relates to valve class technical field, more particularly to a kind of labyrinth type discharge valve flap.
Background technology
For existing valve arrangement of releasing as shown in Figure 1, including flap 1, flap 1 is internally formed back pressure cavity 2, is set outside flap 1
There is guide sleeve 3,3 lower outer of guide sleeve is equipped with upper circle 4, and the upper lower section of circle 4 is equipped with lower circle 5.With reference to Fig. 2, flap 1 includes main body,
Body exterior is equipped with guide surface A, and bottom part body is equipped with sealing surface, hollow top cavity C is formed above bottom part body.Guide surface
A is smooth, cylindrical peripheral surface, and is communicated between body floor B and top cavity C without passage.
When bleeder valve is opened, medium flows therethrough into back pressure cavity 2 from flap 1 and 3 gap location of guide sleeve.On the one hand, due to
The effect of pressure medium, makes flap 1 be partial to 3 side of guide sleeve, adds the frictional force between flap 1 and guide sleeve 3, so as to produce
Go out flap 1 and 3 excessive wear of guide sleeve or card resistance phenomenon occur；Meanwhile bleeder valve when being again switched off due to abrasion and card resistance etc.
Factor can cause seal failure and reveal.On the other hand, due to the pressure of back pressure cavity 2 be by flow through flap 1 and guide sleeve 3 it
Between the medium in gap formed, therefore its back pressure is uncontrollable, and this back pressure formed on 1 top of flap one it is downward
Additional forces, and the size of this active force directly affects the performance of bleeder valve；I.e.：When active force is excessive, make blow pressure
It is excessive so that bleeder valve produce chatter phenomenon；When active force is too small, make blow pressure too low, even lower than system work pressure
Power, so as to influence the normal work that bleeder valve protects equipment.
Therefore, it is necessary to a kind of new bleeder valve valve flap structure is provided, to solve flap existing in the prior art and lead
To inner room frictional force it is excessive caused by seal failure and leakage, and the pressure of back pressure cavity uncontrollable protects bleeder valve
The problem of equipment normal work impacts.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of frictional force that can reduce flap and be oriented to inner room, and can be with
The bleeder valve flap that equipment actual condition effectively adjusts the pressure of back pressure cavity is protected according to bleeder valve.
In order to solve the above-mentioned technical problem, the technical scheme is that providing a kind of labyrinth type discharge valve flap, including
Main body, body exterior are equipped with the guide surface of cylinder, and bottom part body is equipped with sealing surface, hollow top is formed above bottom part body
Cavity, it is characterised in that：The guide surface of the body exterior is equipped with circumferential ring-shaped groove；Outside the sealing surface of the bottom part body
Circle is equipped with the adjusting passage for penetrating through the bottom part body, adjusts channel middle attachment screw passage.
Preferably, the adjusting passage is incline structure.
Preferably, the screw conduits are overhead, i.e., from it is described adjusting channel middle upwardly extend up to it is described on
Portion's cavity through connection.
Preferably, the screw conduits are underneath type, i.e., are extended downwardly from the adjusting channel middle up to through described
Bottom part body.
Preferably, shape has angle between the screw conduits and the adjusting passage.
Preferably, adjusting screw is equipped with the screw conduits, by adjusting the depth that is screwed into of adjusting screw, described in control
The blow pressure of bleeder valve.
Device provided by the invention overcomes the deficiencies in the prior art, not only reduces flap with being oriented to the friction of inner room
Power, and equipment actual condition can be protected according to bleeder valve, effective adjustment control is carried out to bleeder valve blow pressure, is being carried
On the basis of high bleeder valve sealing performance, the safety and reliability of bleeder valve ensure that.
Brief description of the drawings
Fig. 1 is traditional bleeder valve structure diagram；
Fig. 2 is traditional bleeder valve valve flap structure schematic diagram；
Fig. 3 is the labyrinth type discharge valve flap screw conduits top load arrangement schematic diagram provided in embodiment 1；
Fig. 4 is schematic diagram after the valve flap structure shown in Fig. 3 is installed on bleeder valve；
Fig. 5 is the labyrinth type discharge valve flap screw conduits underneath type structure diagram provided in embodiment 2；
Fig. 6 is schematic diagram after the valve flap structure shown in Fig. 5 is installed on bleeder valve.
Embodiment
To become apparent the present invention, hereby with several preferred embodiments, and attached drawing is coordinated to be described in detail below.
Embodiment 1
Fig. 3 is labyrinth type discharge valve valve flap structure schematic diagram provided in this embodiment, the labyrinth type discharge valve flap
If being the setting arterial highway circumferential direction ring-shaped groove 1-1 on the guide surface A of traditional flap, labyrinth seal is formed, to reduce bleeder valve row
Medium enters back pressure cavity 2 when putting, at the same in groove 1-1 medium to flap circumference to homogeneous air-cushion effect is formed, hang flap
Float on guide sleeve 3, so as to reduce the frictional force between flap 1 and guide sleeve 3, effectively prevent when bleeder valve from closing due to abrasion and
The factors such as card resistance cause seal failure and reveal.
Meanwhile the adjusting passage 1-2 of perforation flap bottom is set in the sealing surface outer ring of flap bottom, adjust passage 1-2
Attachment screw passage 1-3.It is incline structure to adjust passage 1-2.Screw conduits 1-3 is overhead, i.e., in the middle part of adjusting passage 1-2
The top cavity C through connections until with flap are upwardly extended, as shown in Figure 3.Screw conduits 1-3 can be underneath type, i.e., from
Adjust and extended downwardly in the middle part of passage 1-2 until running through flap bottom, as shown in Figure 5.In this implementation, screw conduits 1-3 is vertical
Set, i.e. shape has angle between screw conduits 1-3 and adjusting passage 1-2.
With reference to Fig. 4, adjusting screw 6 is screwed into screw conduits 1-3 at the cavity C of top, by adjusting adjusting screw 6
Depth is screwed into, to control the blow pressure of bleeder valve.When adjusting screw 6 is screwed into, adjusts passage and reduce, into Jie of back pressure cavity
Matter pressure rise is slack-off, and blow pressure reduces；When adjusting screw 6 is back-outed, passage increase is adjusted, into the medium pressure of back pressure cavity
Power rise is accelerated, blow pressure increase, so that bleeder valve blow pressure is effectively controlled.
Labyrinth type discharge valve valve flap structure provided in this embodiment, it is excessive and make bleeder valve both to have can effectively avoid blow pressure
Generation chatter, and blow pressure can be avoided too low and the valve protection equipment that makes to release can not work normally.
Labyrinth type discharge valve valve flap structure provided in this embodiment, on the one hand reduces the friction between flap 1 and guide sleeve 3
Power, effectively prevents when bleeder valve from closing since the factors such as abrasion and card resistance cause seal failure and reveal；On the other hand can basis
Bleeder valve protects equipment actual condition, and effective adjustment control is carried out to bleeder valve blow pressure.Integrate, the present embodiment carries
The labyrinth type discharge valve valve flap structure of confession, on the basis of bleeder valve sealing performance is improved, can more effectively adjust back seat pressure
Power, ensure that the safety and reliability of bleeder valve.
Embodiment 2
With reference to Fig. 5, the present embodiment is underneath type difference lies in screw conduits 1-3 with embodiment 1, i.e., from adjusting passage 1-
2 middle parts are extended downwardly until running through flap bottom.In this implementation, screw conduits 1-3 is to be vertically arranged, i.e. screw conduits 1-3
Shape has angle between adjusting passage 1-2.
With reference to Fig. 6, adjusting screw 6 is screwed into screw conduits 1-3 from flap bottom, by adjusting twisting for adjusting screw 6
Enter depth, to control the blow pressure of bleeder valve.When adjusting screw 6 is screwed into, adjusts passage and reduce, into the medium of back pressure cavity
Pressure rise is slack-off, and blow pressure reduces；When adjusting screw 6 is back-outed, passage increase is adjusted, into the pressure medium of back pressure cavity
Rise is accelerated, blow pressure increase, so that bleeder valve blow pressure is effectively controlled.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (6)
1. a kind of labyrinth type discharge valve flap, including main body, body exterior is equipped with the guide surface (A) of cylinder, and bottom part body is set
There is sealing surface, hollow top cavity (C) formed above bottom part body, it is characterised in that：The guide surface (A) of the body exterior
It is equipped with circumferential ring-shaped groove (1-1)；The adjusting that the sealing surface outer ring of the bottom part body is equipped with the perforation bottom part body is led to
Road (1-2), adjusts attachment screw passage (1-3) in the middle part of passage (1-2).
A kind of 2. labyrinth type discharge valve flap as claimed in claim 1, it is characterised in that：The adjusting passage (1-2) is to incline
Biassed fabric.
A kind of 3. labyrinth type discharge valve flap as claimed in claim 2, it is characterised in that：The screw conduits (1-3) are upper
Put formula, i.e., upwardly extended in the middle part of adjusting passage (1-2) up to top cavity (C) through connection.
A kind of 4. labyrinth type discharge valve flap as claimed in claim 2, it is characterised in that：Under the screw conduits (1-3) are
Formula is put, i.e., is extended downwardly in the middle part of the adjusting passage (1-2) up to running through the bottom part body.
A kind of 5. labyrinth type discharge valve flap as described in claim 3 or 4, it is characterised in that：The screw conduits (1-3) with
Shape has angle between the adjusting passage (1-2).
A kind of 6. such as labyrinth type discharge valve flap of Claims 1 to 4 any one of them, in bleeder valve, it is characterised in that：
Adjusting screw (6) is equipped with the screw conduits (1-3), by adjusting the depth that is screwed into of adjusting screw (6), is released described in control
The blow pressure of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621406.6A CN105422881B (en) | 2015-09-25 | 2015-09-25 | A kind of labyrinth type discharge valve flap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621406.6A CN105422881B (en) | 2015-09-25 | 2015-09-25 | A kind of labyrinth type discharge valve flap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422881A CN105422881A (en) | 2016-03-23 |
| CN105422881B true CN105422881B (en) | 2018-04-20 |
Family
ID=55501317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510621406.6A Active CN105422881B (en) | 2015-09-25 | 2015-09-25 | A kind of labyrinth type discharge valve flap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422881B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718361A (en) * | 2010-01-27 | 2010-06-02 | 浙江超达阀门股份有限公司 | Constant-pressure check valve |
| CN201615268U (en) * | 2010-04-02 | 2010-10-27 | 吴江市东吴机械有限责任公司 | Main steam security valve |
| CN101893096A (en) * | 2009-05-20 | 2010-11-24 | 冯敬 | Electromagnetic valve structure |
| US8307856B2 (en) * | 2007-11-07 | 2012-11-13 | Tdw Delaware Inc. | Double block and bleed plug |
| CN202768896U (en) * | 2012-08-29 | 2013-03-06 | 江阴万讯自控设备有限公司 | Multi-stage valve core structure of adjusting valve |
| CN104896109A (en) * | 2015-05-29 | 2015-09-09 | 杭州华惠阀门有限公司 | Pressure reducing valve |
-
2015
- 2015-09-25 CN CN201510621406.6A patent/CN105422881B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8307856B2 (en) * | 2007-11-07 | 2012-11-13 | Tdw Delaware Inc. | Double block and bleed plug |
| CN101893096A (en) * | 2009-05-20 | 2010-11-24 | 冯敬 | Electromagnetic valve structure |
| CN101718361A (en) * | 2010-01-27 | 2010-06-02 | 浙江超达阀门股份有限公司 | Constant-pressure check valve |
| CN201615268U (en) * | 2010-04-02 | 2010-10-27 | 吴江市东吴机械有限责任公司 | Main steam security valve |
| CN202768896U (en) * | 2012-08-29 | 2013-03-06 | 江阴万讯自控设备有限公司 | Multi-stage valve core structure of adjusting valve |
| CN104896109A (en) * | 2015-05-29 | 2015-09-09 | 杭州华惠阀门有限公司 | Pressure reducing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422881A (en) | 2016-03-23 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 200240 Shanghai city Minhang District Jianchuan Road No. 1115 Patentee after: SHANGHAI POWER EQUIPMENT Research Institute Patentee after: SHANGHAI PURUI ENERGY TECHNOLOGY Co.,Ltd. Address before: 200240 Shanghai city Minhang District Jianchuan Road No. 1115 Patentee before: SHANGHAI POWER EQUIPMENT Research Institute Patentee before: SHANGHAI PURUI ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200922 Address after: 200240 Shanghai city Minhang District Jianchuan Road No. 1115 Patentee after: SHANGHAI POWER EQUIPMENT Research Institute Address before: 200240 Shanghai city Minhang District Jianchuan Road No. 1115 Patentee before: SHANGHAI POWER EQUIPMENT Research Institute Patentee before: SHANGHAI PURUI ENERGY TECHNOLOGY Co.,Ltd. |