CN104712799B - Venturi valve equipped with robust seal structure - Google Patents
Venturi valve equipped with robust seal structure Download PDFInfo
- Publication number
- CN104712799B CN104712799B CN201510161518.8A CN201510161518A CN104712799B CN 104712799 B CN104712799 B CN 104712799B CN 201510161518 A CN201510161518 A CN 201510161518A CN 104712799 B CN104712799 B CN 104712799B
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- China
- Prior art keywords
- rod
- valve
- valve body
- swing rod
- seal structure
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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
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses the venturi valves for being equipped with robust seal structure, including valve body, valve rod, locating support, spool, adapting rod, swing rod, adjusting bracket, adjusting rod, pedestal, it is characterized by also including the sealing elements being placed on the swing rod, one end of the sealing element is placed in the valve body, and the other end is pierced by the valve body and is pressed on the valve body by a sealing clamp.The beneficial effects of the present invention are: the upper skirt of sealing element is compacted on valve body by being arranged sealing element on adjusting rod, and using sealing clamp, firm sealing structure is adequately achieved.Under the premise of effectively ensuring that valve inner pressure values and air quantity precisely adjust control, also ensuring gas will not leak outside, and reduce harm and environmental pollution.
Description
Technical field
The present invention relates to fluid valve technical fields, more particularly, to a kind of venturi valve equipped with robust seal structure.
Background technique
Venturi control damper can be incited somebody to action since it combines the unrelated adjuster of mechanical pressure and high-speed flow controller
Gas flow optimized extends to highest level.By aerodynamic design, valve has mute working performance.Fast reaction it is automatic
Pressure equaliser provides the control of reliable vent cabinet dust and room pressure.Venturi valve has not to be become by air duct pressure
Change influence, Boiler pressure control range it is wide from 60m3/h to 10,000m3/h, be swift in response (less than 1 second), adjust accurate (± 5%)
The features such as, it is widely used in certain biological products factory, poisonous and harmful, chemical laboratory and lifes for requiring control negative pressure
Object security laboratory (such as P3 grades of biology laboratory) place.Because considering human safety issues, system pressure difference control is necessary
It is high-precision, high reliability.
However, the structure that venturi valve existing on the market does not consolidate but in swing rod sealing at present, to realize valve body
Internal pressure value and air quantity are precisely controlled.
In order to solve above-mentioned problem, inventor combines experience to have developed one kind and is equipped with precision voluntarily adjustment structure
Venturi valve.
Summary of the invention
The purpose of the present invention is to provide a kind of venturi valve equipped with robust seal structure with excellent sealing ability,
To solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
Venturi valve equipped with robust seal structure, including valve body, set on the intracorporal valve rod of the valve, it is described to support
The locating support of valve rod, the spool being connected with the valve rod are connected with the valve rod by an adapting rod and are pierced by the valve body
Swing rod, be connected except the valve body and by adjusting bracket that the swing rod passes through, with the adjusting bracket and band
There is the adjusting rod of graduated scale and one be fixed on the valve body pedestal to the fixation swing rod and the adjusting bracket,
It is characterized by:
It further include a sealing element being placed on the swing rod, one end of the sealing element is placed in the valve body, another
End is pierced by the valve body and is pressed on the valve body by a sealing clamp, to prevent gas in the valve body from leaking；
One end of the adjusting rod is connected with the swing rod, and the other end passes through the adjusting bracket and a self-locking precision tune
It saves device to be connected, the adjusting rod moves back and forth with the rotation and then level of the self-locking precise regulator, automatic to realize
Degree of regulation is additionally provided with accuracy coordinate in the adjusting bracket.
The sealing element preferably rubber sleeve made of fluorubber, be placed in the intracorporal one end of the valve by adhesive with
The swing rod is closely coupled, to prevent gas from escaping along the swing rod body of rod.
It is corrugated that the sealing element is placed in the intracorporal one end of the valve, tightly tends to the swing rod under negative pressure state.
A locking is equipped in the self-locking precise regulator, to limit the random of the self-locking precise regulator
Rotation.
The accuracy coordinate includes two kinds of structures of liquid crystal display or non-liquid crystal display.
The valve body, valve rod, locating support, spool, swing rod, adjusting bracket and adjusting rod are all made of stainless steel and are made,
It is preferred that 316 stainless steels.
Compared with prior art, the beneficial effects of the present invention are: by being arranged sealing element on adjusting rod, and sealing is utilized
The upper skirt of sealing element is compacted on valve body by pressing plate, adequately achieves firm sealing structure.Effectively ensuring valve inner
Under the premise of pressure values and air quantity precisely adjust control, also ensuring gas will not leak outside, and reduce harm and environmental pollution.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
The venturi valve of robust seal structure is equipped with shown in referring to Fig.1, including valve body 1, the valve in the valve body 1
Bar 2, the spool 4 being connected with the valve rod 2, passes through an adapting rod 5 and institute at two groups of locating supports 3 to support the valve rod 2
State the adjusting branch that valve rod 2 is connected and is pierced by the swing rod 6 of the valve body 1, passes through except the valve body 1 and by the swing rod 6
Frame 7, be connected with the adjusting bracket 7 and with graduated scale adjusting rod 8 and one be fixed on the valve body 1 to
The pedestal 9 of the fixed swing rod 6 and the adjusting bracket 7, further includes a sealing element 10 being placed on the swing rod 6.Wherein:
One end of the sealing element 10 is placed in the valve body 1, and the other end is pierced by the valve body 1 and by a sealing clamp
11 are pressed on the valve body 1, to prevent in the valve body 1 sealing element 10 described in gas leakage preferably made of fluorubber
Rubber sleeve, be placed in one end in the valve body 1 by adhesive and the swing rod 6 it is closely coupled, with prevent gas edge described in
The body of rod of swing rod 6 escapes.One end that the sealing element 10 is placed in the valve body 1 is corrugated, tightly tends under negative pressure state
The swing rod 6.
One end of the adjusting rod 8 is connected with the swing rod 6, and the other end passes through the adjusting bracket 7 and self-locking essence
Adjuster 12 to be spent to be connected, the adjusting rod 8 moves back and forth with the rotation and then level of the self-locking precise regulator 12, with
It realizes automatic adjustment precision, a locking 121 is equipped in the self-locking precise regulator 12, to limit the self-locking essence
Spend the random rotation of adjuster 12.
Accuracy coordinate 13 is additionally provided in the adjusting bracket 7, the accuracy coordinate 13 includes liquid crystal display or non-liquid crystal
Show two kinds of structures.
The valve body 1, valve rod 2, locating support 3, spool 4, swing rod 6, adjusting bracket 7 and adjusting rod 8 are all made of stainless
Steel is made, preferably 316 stainless steels.
Compared with prior art, the beneficial effects of the present invention are: by being arranged sealing element on adjusting rod, and sealing is utilized
The upper skirt of sealing element is compacted on valve body by pressing plate, adequately achieves firm sealing structure.Effectively ensuring valve inner
Under the premise of pressure values and air quantity precisely adjust control, also ensuring gas will not leak outside, and reduce harm and environmental pollution.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, nothing
By from the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended
Claim rather than above description limit, it is intended that the institute that will be fallen within the meaning and scope of the equivalent elements of the claims
It changes and is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. be equipped with robust seal structure venturi valve, including valve body, set on the intracorporal valve rod of the valve, to support the valve
The locating support of bar, the spool being connected with the valve rod are connected with the valve rod by an adapting rod and are pierced by the valve body
Swing rod, be connected except the valve body and by adjusting bracket that the swing rod passes through, with the adjusting bracket and have
The adjusting rod of graduated scale and one pedestal to the fixation swing rod and the adjusting bracket is fixed on the valve body,
It is characterized in that:
It further include a sealing element being placed on the swing rod, one end of the sealing element is placed in the valve body, and the other end is worn
It the valve body and is pressed on the valve body by a sealing clamp out, to prevent gas in the valve body from leaking；
One end of the adjusting rod is connected with the swing rod, and the other end passes through the adjusting bracket and a self-locking precise regulator
It is connected, the adjusting rod moves back and forth with the rotation and then level of the self-locking precise regulator, to realize automatic adjustment
Precision is additionally provided with accuracy coordinate in the adjusting bracket.
2. the venturi valve according to claim 1 equipped with robust seal structure, it is characterised in that: the sealing element is preferred
The rubber sleeve made of fluorubber, be placed in the intracorporal one end of the valve by adhesive and the swing rod it is closely coupled, with hinder
Only gas is escaped along the swing rod body of rod.
3. the venturi valve according to claim 1 equipped with robust seal structure, it is characterised in that: the sealing element is placed in
Described intracorporal one end of valve is corrugated, tightly tends to the swing rod under negative pressure state.
4. the venturi valve according to claim 1 equipped with robust seal structure, it is characterised in that: in the self-locking essence
It spends adjuster and is equipped with a locking, to limit the random rotation of the self-locking precise regulator.
5. the venturi valve according to claim 1 equipped with robust seal structure, it is characterised in that: the accuracy coordinate packet
Include two kinds of structures of liquid crystal display or non-liquid crystal display.
6. the venturi valve according to claim 1 equipped with robust seal structure, it is characterised in that: the valve body, valve rod,
Locating support, spool, swing rod, adjusting bracket and adjusting rod are all made of stainless steel and are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161518.8A CN104712799B (en) | 2015-04-07 | 2015-04-07 | Venturi valve equipped with robust seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161518.8A CN104712799B (en) | 2015-04-07 | 2015-04-07 | Venturi valve equipped with robust seal structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104712799A CN104712799A (en) | 2015-06-17 |
| CN104712799B true CN104712799B (en) | 2019-09-13 |
Family
ID=53412388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510161518.8A Active CN104712799B (en) | 2015-04-07 | 2015-04-07 | Venturi valve equipped with robust seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712799B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812990B (en) * | 2015-11-27 | 2019-06-21 | 上海卓思智能科技股份有限公司 | A kind of driving method of venturi valve and its valve cone |
| CN106122574A (en) * | 2016-08-22 | 2016-11-16 | 张国君 | Compact air quantity regulation venturi valve |
| CN107504238B (en) * | 2017-07-31 | 2019-04-02 | 长江大学 | The adjustable machinery of critical flow is jammed venturi nozzle |
| US11725745B2 (en) | 2018-04-27 | 2023-08-15 | Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | Regulator |
| US11371621B2 (en) | 2019-01-30 | 2022-06-28 | Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | Balance structure for a regulator |
| CN110332365B (en) * | 2019-07-09 | 2024-02-20 | 上海智全控制设备有限公司 | Venturi valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202432055U (en) * | 2012-02-07 | 2012-09-12 | 胡崔健 | Air flow controller |
| JP2015052336A (en) * | 2013-09-06 | 2015-03-19 | アズビル株式会社 | Shaft position control device and method of venturi valve |
| CN204961947U (en) * | 2015-04-07 | 2016-01-13 | 张国君 | Venturi valve with firm seal structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140284508A1 (en) * | 2013-03-25 | 2014-09-25 | E.H. Price Ltd. | Venturi Valve with Hard Stop |
-
2015
- 2015-04-07 CN CN201510161518.8A patent/CN104712799B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202432055U (en) * | 2012-02-07 | 2012-09-12 | 胡崔健 | Air flow controller |
| JP2015052336A (en) * | 2013-09-06 | 2015-03-19 | アズビル株式会社 | Shaft position control device and method of venturi valve |
| CN204961947U (en) * | 2015-04-07 | 2016-01-13 | 张国君 | Venturi valve with firm seal structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104712799A (en) | 2015-06-17 |
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