CN106855148A - A kind of aerodynamic loading canceller for gas valve - Google Patents
A kind of aerodynamic loading canceller for gas valve Download PDFInfo
- Publication number
- CN106855148A CN106855148A CN201510892425.2A CN201510892425A CN106855148A CN 106855148 A CN106855148 A CN 106855148A CN 201510892425 A CN201510892425 A CN 201510892425A CN 106855148 A CN106855148 A CN 106855148A
- Authority
- CN
- China
- Prior art keywords
- spring
- gas valve
- valve
- lateral spring
- output shaft
- 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
-
- 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
- F16K31/44—Mechanical actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of aerodynamic loading canceller for gas valve, including valve body, lower lateral spring, spring(-supported) mount, gas valve output shaft, upper lateral spring, stop nut, spring upper supporting plate, driver part；The lower lateral spring is connected with valve body, and spring(-supported) mount lower end is connected through gas valve output shaft with lower lateral spring, realizes that spring(-supported) mount is connected with gas valve output shaft by stop nut；The upper lateral spring is arranged on the upper end of spring(-supported) mount, and spring upper supporting plate is connected through gas valve output shaft with valve body, and gas valve output shaft is attached with driver part.Aerodynamic loading canceller for gas valve of the invention, it is possible to decrease drive system volume and weight, reduces counteracting of the gas valve in the peak load of the course of work.
Description
Technical field
Present invention is mainly applied to solid rail control gas valve control technology field, and in particular to a kind of aerodynamic loading canceller for gas valve.
Background technology
In terms of solid rail control gas valve control technology, it is domestic to be still in the starting stage, for the drive system of gas valve, there need to be the requirement of lightweight miniaturization, but due to gas valve in the course of the work, its airload is larger, and during Driving Scheme, driving force need to be ensured much larger than peak load power, make gas valve that there is acceleration higher.The power that this results in whole drive system is larger, it is impossible to installed in the space of regulation.
The content of the invention
In view of the shortcomings of the prior art, it is a kind of for reducing drive system volume and weight it is an object of the invention to design, reduce counteracting method of the gas valve in the peak load of the course of work.
Realizing technical solution of the invention is：A kind of aerodynamic loading canceller for gas valve, including valve body, lower lateral spring, spring(-supported) mount, gas valve output shaft, upper lateral spring, stop nut, spring upper supporting plate, driver part；The lower lateral spring is connected with valve body, and spring(-supported) mount lower end is connected through gas valve output shaft with lower lateral spring, realizes that spring(-supported) mount is connected with gas valve output shaft by stop nut；The upper lateral spring is arranged on the upper end of spring(-supported) mount, and spring upper supporting plate is connected through gas valve output shaft with valve body, and gas valve output shaft is attached with driver part.
Further, described driver part uses ball-screw, rack-and-pinion or linear electric motors.
Further, described upper lateral spring, lower lateral spring can use butterfly spring or helical spring.
Compared with prior art, the aerodynamic loading canceller for gas valve of the invention, it is possible to decrease drive system volume and weight, reduces counteracting of the gas valve in the peak load of the course of work.
Brief description of the drawings
Below with reference to accompanying drawing and implementation, the invention will be further described.
Fig. 1 is the structural representation of gas valve aerodynamic loading canceller of the present invention；
Fig. 2 is the similar gas valve aerodynamic loading example that the present invention is provided.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
It is used for gas valve aerodynamic loading canceller the invention discloses one kind.The device includes valve body, lower lateral spring, spring(-supported) mount, gas valve output shaft, upper lateral spring, stop nut, spring upper supporting plate, driver part（Can be ball-screw, rack-and-pinion, linear electric motors etc.）, wherein：
Shown in Figure 1, lower lateral spring is connected with valve body, and spring(-supported) mount lower end is connected through gas valve output shaft with lower lateral spring, realizes that spring(-supported) mount is connected with gas valve output shaft by stop nut.Upper lateral spring is arranged on the upper end of spring(-supported) mount, and spring upper supporting plate is connected through gas valve output shaft with valve body, and gas valve output shaft is attached with driver part.
Aerodynamic loading load curve shown in Figure 2,（A）It is the dynamic characteristic under the conditions of diverse location, (B) is the relation of pneumatic force direction and position；The course of work of the high-temperature fuel gas valve aerodynamic loading canceller discussed is comprised the following steps：（1）When valve is in middle position, bilateral spring is in free state, does not carry out the counteracting of aerodynamic loading.（2）During valve working, when driver part band ovable valve stem is moved downward, stem movement direction is identical with the direction of aerodynamic force, and the bigger aerodynamic force in position is bigger.By the effect of this aerodynamic loading canceller, during valve rod is moved downward, the making a concerted effort for aerodynamic force and spring force that valve rod bears so that the peak load of valve rod effectively declines.（3）During valve working, when driver part band ovable valve stem is moved upwards, stem movement direction is identical with the direction of aerodynamic force, and the bigger aerodynamic force in position is bigger.By the effect of this aerodynamic loading canceller, during valve rod is moved upwards, the making a concerted effort for aerodynamic force and spring force that valve rod bears so that the peak load of valve rod effectively declines.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, can in other specific forms realize the present invention.
Claims (5)
1. a kind of aerodynamic loading canceller for gas valve, it is characterised in that：Including valve body, lower lateral spring, spring(-supported) mount, gas valve output shaft, upper lateral spring, stop nut, spring upper supporting plate, driver part；The lower lateral spring is connected with valve body, and spring(-supported) mount lower end is connected through gas valve output shaft with lower lateral spring, realizes that spring(-supported) mount is connected with gas valve output shaft by stop nut；The upper lateral spring is arranged on the upper end of spring(-supported) mount, and spring upper supporting plate is connected through gas valve output shaft with valve body, and gas valve output shaft is attached with driver part.
2. the aerodynamic loading canceller of gas valve is used for as claimed in claim 1, it is characterised in that：Described driver part uses ball-screw, rack-and-pinion or linear electric motors.
3. the aerodynamic loading canceller of gas valve is used for as claimed in claim 1, it is characterised in that：Described upper lateral spring, lower lateral spring can use butterfly spring or helical spring.
4. the aerodynamic loading canceller of gas valve is used for as claimed in claim 1, it is characterised in that：The spring force that described upper lateral spring, lower lateral spring are chosen is offset for the half of aerodynamic force, is determined according to valve real work stroke.
5. the aerodynamic loading canceller of gas valve is used for as claimed in claim 4, it is characterised in that：When valve is in middle position, upper lateral spring, lower lateral spring are in free state, do not carry out the counteracting of aerodynamic loading；During valve working, when driver part band ovable valve stem is moved downward, stem movement direction is identical with the direction of aerodynamic force, and the bigger aerodynamic force in position is bigger；During valve rod is moved downward, valve rod bear for aerodynamic force and upper lateral spring, lower lateral spring are made a concerted effort so that the peak load of valve rod effectively declines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510892425.2A CN106855148A (en) | 2015-12-08 | 2015-12-08 | A kind of aerodynamic loading canceller for gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510892425.2A CN106855148A (en) | 2015-12-08 | 2015-12-08 | A kind of aerodynamic loading canceller for gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106855148A true CN106855148A (en) | 2017-06-16 |
Family
ID=59131489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510892425.2A Pending CN106855148A (en) | 2015-12-08 | 2015-12-08 | A kind of aerodynamic loading canceller for gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106855148A (en) |
-
2015
- 2015-12-08 CN CN201510892425.2A patent/CN106855148A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170616 |
|
| RJ01 | Rejection of invention patent application after publication |