CN103574155A - Throttling rotary valve - Google Patents
Throttling rotary valve Download PDFInfo
- Publication number
- CN103574155A CN103574155A CN201310559682.5A CN201310559682A CN103574155A CN 103574155 A CN103574155 A CN 103574155A CN 201310559682 A CN201310559682 A CN 201310559682A CN 103574155 A CN103574155 A CN 103574155A
- Authority
- CN
- China
- Prior art keywords
- valve plate
- valve
- throttle valve
- delthyrium
- throttling
- 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.)
- Pending
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0209—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor the valve having a particular passage, e.g. provided with a filter, throttle or safety device
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a throttling rotary valve which comprises a left flange, a throttling valve plate and a right flange. The left flange and the right flange are located on the two sides of the throttling valve plate respectively. Eight first triangular holes are formed in the throttling valve plate and distributed around the circle center of the throttling valve plate. Eight second triangular holes are formed in the right flange and correspond to the first triangular holes in the throttling valve plate. The throttling valve plate can rotate freely. The throttling rotary valve can effectively reduce airflow pressure and flows, airflows are ordered after pressure reduction, linearity of pressure adjustment is good, and measuring precision is high.
Description
Technical field
The present invention relates to a kind of rotary valve, the throttling rotary valve that especially a kind of blower fan is measured, belongs to component of machine technical field.
Background technique
In the application of fan test, usually need the incoming flow of negative pressure, contribute to like this to reduce the required air horsepower of blower fan, can reduce the hardware requirement of test.For the blower fan of some superhigh powers, conventionally adopt such method to test.
In prior art, conventionally adopt gate valve to carry out step-down throttling, when the pressure of required decline is larger, air-flow tends to very disorderly, thereby need one section of very long straight pipeline that disorderly air-flow is become evenly again, avoid the measurement of follow-up blower fan to produce adverse influence.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of throttling rotary valve is provided, this rotary valve can effectively reduce stream pressure, reduces flow, and more orderly by the air-flow after step-down, and its pressure linear adjustment is good, and measuring accuracy is high.
According to technological scheme provided by the invention, a kind of throttling rotary valve comprises left flange, throttle valve valve plate and right flange; Described left flange and right flange lay respectively at the both sides of throttle valve valve plate; On throttle valve valve plate, have 8 the first delthyriums, the first delthyrium is uniformly distributed around the center of circle of throttle valve valve plate; Described right flange is provided with 8 second delthyriums corresponding with the first delthyrium on throttle valve valve plate; Described throttle valve valve plate can freely rotate.
As a further improvement on the present invention, also have two handles on described throttle valve valve plate, left flange is provided with the groove of the waist type coordinating with handle.
As a further improvement on the present invention, described the first delthyrium is identical with the second delthyrium shape, is obtuse angle isosceles triangle, and the first delthyrium is 20 ° with respect to the fan-shaped subtended angle a in the throttle valve valve plate center of circle, and a is less than 22.5 °.
As a further improvement on the present invention, described groove is waist type groove.
Compared with the prior art the present invention has the following advantages:
On the one hand, the circulating area that the present invention is comprised of N delthyrium distributes along even circumferential, airflow passes throttling rotary valve, in the time of effective step-down, air turbulence degree is significantly reduced, and the required steady flow segment length in downstream can reduce 50%, has also reduced blower fan and has tested required site requirements simultaneously.
On the other hand, in prior art, throttle valve valve plate angle of swing and circulating area be varied to direct ratio.And the present invention is when throttle valve valve plate is rotating closed, 1 ° of every rotation, the variation of triangle circulating area is less, so more meets hydromechanical principle, and the pressure of air-flow changes more even, and Pressure characteristics is more partial to linearity, is more conducive to guarantee the precision regulating.It is good that the present invention has antihypertensive effect, and practicability is also strong.
Accompanying drawing explanation
Fig. 1 is the plan view of structure of the present invention.
Fig. 2 is the A-A view of Fig. 1.
Embodiment
The present invention is below further described in connection with the embodiment in accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
As Figure 1-Figure 2: comprise left flange 1, throttle valve valve plate 2, right flange 3, the first delthyrium 21, the second delthyrium 31, waist type groove 11.
Described left flange 1 and right flange 3 lay respectively at the both sides of throttle valve valve plate 2; On throttle valve valve plate 2, there are 8 the first delthyrium 21, the first delthyriums 21 to be uniformly distributed around the center of circle of throttle valve valve plate 2; Described right flange 3 is provided with 8 second delthyriums 31 corresponding with the first delthyrium 21 on throttle valve valve plate 2; Described throttle valve valve plate 2 can freely rotate.
On described throttle valve valve plate 2, also have two handles 22, throttle valve valve plate 2 normal vector directions are outwards provided with handle 22, and left flange 1 is provided with the groove 11 of the waist type coordinating with handle 22; Handle 22 can rotate along the track of groove 31, thereby drives throttle valve valve plate 2 to rotate, and during rotation, throttle valve valve plate 2 makes 8 the first delthyriums 21 and 8 the second delthyriums 31 on right flange 3 form dislocation, thereby controls circulation area.
Described the first delthyrium 21 is identical with the second delthyrium 31 shapes, is obtuse angle isosceles triangle, and the first delthyrium 21 is 20 ° with respect to the fan-shaped subtended angle a in throttle valve valve plate 2 centers of circle, and a is less than 22.5 °, can guarantee that like this throttling rotary valve can be completely closed.
The present invention is simple in structure, compact, reasonable.During airflow passes throttling rotary valve, pass through 8 the second delthyrium regions, the uninterrupted in the through-flow region that the second delthyrium forms can be controlled by 2 rotations of throttle valve valve plate.Air flow stream is crossed behind 8 the second delthyrium regions, circulation area sudden enlargement, and flow velocity sharply reduces, and a part of air-flow forms and refluxes, and the vortex in backflow produces larger flow loss, and stream pressure is declined.Compared with the prior art, after this throttling rotary valve, there are 8 recirculating zones, place in whole flow field, is circumferentially being uniformly distributed.The flow losses that vortex produces are relatively disperseed, and after pressure drop, in downstream line, because vortex is smaller, can again comb rapidly whole.In addition, when the throttle valve valve plate 2 of throttling rotary valve of the present invention is rotating closed, 1 ° of every rotation, the variation of triangle circulating area is less, more meets hydromechanical principle, and the control characteristic linearity is high, and pressure changes more even, and precision is higher.Be proven, throttling rotary valve of the present invention can effectively reduce the turbulence of air-flow after step-down, greatly shortens the required barretter length in downstream, has also reduced blower fan and has tested required site requirements simultaneously.
Claims (3)
1. a throttling rotary valve, is characterized in that: comprise left flange (1), throttle valve valve plate (2) and right flange (3); Described left flange (1) and right flange (3) lay respectively at the both sides of throttle valve valve plate (2); Throttle valve valve plate (2) is provided with 8 the first delthyriums (21), and the first delthyrium (21) is uniformly distributed around the center of circle of throttle valve valve plate (2); Described right flange (3) is provided with 8 second delthyriums (31) corresponding with upper the first delthyrium of throttle valve valve plate (2) (21); Described throttle valve valve plate (2) can freely rotate;
Described throttle valve valve plate (2) is provided with two handles (22), and left flange (1) is provided with the groove (11) coordinating with handle (22).
2. a kind of throttling rotary valve as claimed in claim 1, it is characterized in that: described the first delthyrium (21) is identical with the second delthyrium (31) shape, be obtuse angle isosceles triangle, the first delthyrium (21) is 20 ° with respect to the fan-shaped subtended angle a in throttle valve valve plate (2) center of circle, and a is less than 22.5 °.
3. a kind of throttling rotary valve as claimed in claim 1, is characterized in that: described groove (11) is waist type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310559682.5A CN103574155A (en) | 2013-11-12 | 2013-11-12 | Throttling rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310559682.5A CN103574155A (en) | 2013-11-12 | 2013-11-12 | Throttling rotary valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103574155A true CN103574155A (en) | 2014-02-12 |
Family
ID=50046575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310559682.5A Pending CN103574155A (en) | 2013-11-12 | 2013-11-12 | Throttling rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103574155A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769064A (en) * | 2016-12-24 | 2017-05-31 | 中国科学院工程热物理研究所 | A kind of orifice-plate type back pressure regulator device |
| CN107061774A (en) * | 2017-06-09 | 2017-08-18 | 浙江万龙机械有限公司 | A kind of valve plate hole of propeller blade shape |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1190602C (en) * | 1998-03-13 | 2005-02-23 | 法国天然气公司 | Flow conditioner for gas transport pipe |
| US20090277204A1 (en) * | 2008-05-07 | 2009-11-12 | Airbus Deutschland Gmbh | Adjustable Orifice For Use In An Air Conditioning System, In Particular An Aircraft Air Conditioning System |
| CN103016896A (en) * | 2012-12-13 | 2013-04-03 | 国家电网公司 | Single-stage adjustable throttling orifice |
| CN103291943A (en) * | 2013-06-17 | 2013-09-11 | 无锡杰尔压缩机有限公司 | Throttle dropping equipment |
| CN203442186U (en) * | 2013-09-10 | 2014-02-19 | 无锡杰尔压缩机有限公司 | Throttling rotary valve |
-
2013
- 2013-11-12 CN CN201310559682.5A patent/CN103574155A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1190602C (en) * | 1998-03-13 | 2005-02-23 | 法国天然气公司 | Flow conditioner for gas transport pipe |
| US20090277204A1 (en) * | 2008-05-07 | 2009-11-12 | Airbus Deutschland Gmbh | Adjustable Orifice For Use In An Air Conditioning System, In Particular An Aircraft Air Conditioning System |
| CN103016896A (en) * | 2012-12-13 | 2013-04-03 | 国家电网公司 | Single-stage adjustable throttling orifice |
| CN103291943A (en) * | 2013-06-17 | 2013-09-11 | 无锡杰尔压缩机有限公司 | Throttle dropping equipment |
| CN203442186U (en) * | 2013-09-10 | 2014-02-19 | 无锡杰尔压缩机有限公司 | Throttling rotary valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769064A (en) * | 2016-12-24 | 2017-05-31 | 中国科学院工程热物理研究所 | A kind of orifice-plate type back pressure regulator device |
| CN106769064B (en) * | 2016-12-24 | 2019-06-18 | 中国科学院工程热物理研究所 | A kind of orifice-plate type back pressure regulator device |
| CN107061774A (en) * | 2017-06-09 | 2017-08-18 | 浙江万龙机械有限公司 | A kind of valve plate hole of propeller blade shape |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |