CN203770809U - Low gravity center adjusting valve - Google Patents
Low gravity center adjusting valve Download PDFInfo
- Publication number
- CN203770809U CN203770809U CN201420192198.3U CN201420192198U CN203770809U CN 203770809 U CN203770809 U CN 203770809U CN 201420192198 U CN201420192198 U CN 201420192198U CN 203770809 U CN203770809 U CN 203770809U
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- gravity
- centre
- axis
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a low gravity center adjusting valve which comprises a valve body, a valve cover, an execution mechanism, a valve core and a valve rod, wherein the valve core and the valve rod are arranged in the valve body and the valve cover; the bottom of the valve core is matched with a valve base which is arranged in the valve body; the upper end of the valve rod is connected and matched with the execution mechanism; the execution mechanism comprises an upper film cover, a lower film cover and a telescopic bracket which is fixedly connected below the lower film cover; a spring and a central shaft are arranged in the bracket; the upper ends of the spring and the central shaft are fixedly connected with the lower surface of the lower film cover respectively; the lower end of the spring is fixedly connected with a spring pad; the bracket and the valve cover are fixedly connected; the lower end of the central shaft is connected with the valve rod. According to the lower gravity center adjusting device, the height of the valve cover is reduced by using high temperature resistant filling materials; the whole gravity center of the valve is lowered by virtue of the spring arranged on the execution mechanism below an air chamber, so that the whole structure rigidity and inherent frequency of the valve are increased and the valve can stand a strong earthquake test.
Description
Technical field
The utility model relates to a kind of valve, refers in particular to a kind of centre of gravity modulating valve being applied under high-temperature and high-pressure conditions.
Background technique
At present, the structure of known modulating valve mainly comprises that valve body, trim, valve gap, support, actuator, electric attachments form.The general multiselect of form of the valve body of large bore valves is with there being founding type, because the difficult processing of bigbore forging, the structural type of trim has also been shaped after valve selection completes, so affect the main structure of large bore valves center of gravity, has valve gap and actuator.And the form of valve gap has conventional type and high temperature, low temperature elongation type according to the difference of valve circulation medium temperature, there are single spring and many springs in actuator, so select which type of structural type to have a great impact the center of gravity of valve.Conventional high-temperature high pressure valve structural design is selected high temperature elongation type valve gap and conventional many spring acuators exactly, such structure just has a design deficiency, the integral installation that is exactly valve is highly high, center of gravity is higher, shock strength impact on valve is very large, so a lot of such valve mechanism just need to consider that supplemental support fixes when installing.
Model utility content
In order to solve, existing high-temperature high pressure valve structural entity setting height(from bottom) is high causes the problem that center of gravity is higher, shock strength is low, the utility model proposes a kind of centre of gravity modulating valve, adopt high temperature resistant filler to reduce valve gap height, the scheme of the actuator of employing spring fitting below air chamber reduces the center of gravity of valve integral body, improved overall structure rigidity and the natural frequency of valve, made valve can bear stronger seismic test.
The technological scheme that the utility model adopts is: a kind of centre of gravity modulating valve, comprise valve body, valve gap, actuator and be arranged on valve body and valve gap in spool and valve rod, described spool bottom is equipped with the valve seat being arranged in valve body, described valve rod upper end connects and coordinates actuator, described actuator comprises membrane cover, lower membrane cover and be fixedly connected on the telescopic support of lower membrane cover below, in described support, be provided with spring and axis, the upper end of described spring, the upper end of axis is fixedly connected with the lower surface of lower membrane cover respectively, the lower end of spring is fixedly connected with spring pad, support is fixedly connected with valve gap, the lower end of axis is connected with valve rod.
The utility model adopts the scheme in single spring and the spring fitting support below actuator, can reduce the center of gravity of valve integral body, has improved overall structure rigidity and the natural frequency of valve, makes valve can bear stronger seismic test.
As preferably, between described upper membrane cover and lower membrane cover, be fixedly installed diaphragm, diaphragm upper surface is equipped with pallet.
As preferably, described axis is telescopic pipe, and spring pad lower end is connected with the regulating block of adjustable axis extending amount, and described regulating block is connected with axis by adjusting nut.
As preferably, the lower end of described axis with valve rod by fixture block is connected.By fixture block is fixed together axis and valve rod.
As preferably, described support is hollow cylinder.In the support of hollow body structure, spring is set, by the decrement of Regulation spring, regulates the center of gravity of whole valve.
As preferably, described valve gap comprises outer surface, exotic material layer and internal surface.The filler of valve gap inside is selected the exotic materials such as graphite, make the valve gap being applied under high temperature condition no longer need to adopt high temperature elongation type structure, thereby reduced the center of gravity of valve integral body, improved overall structure rigidity and the natural frequency of valve, made valve can bear stronger seismic test.
As further preferred, described exotic material layer is graphite layer.
As preferably, the bottom of described valve body is provided with valve base.At the bottom design base of valve body, and make base strengthen weight under the prerequisite that meets casting requirement.
The beneficial effects of the utility model are: adopt high temperature resistant filler to reduce valve gap height, the scheme of the actuator with spring fitting below air chamber reduces the center of gravity of valve integral body, improved overall structure rigidity and the natural frequency of valve, made valve can bear stronger seismic test.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the structural scheme of mechanism of actuator of the present utility model.
In figure, 1-valve body, 2-valve gap, 3-actuator, 4-valve rod, 5-valve base, the upper membrane cover of 6-, membrane cover under 7-, 8-support, 9-axis, 10-spring, 11-spring pad, 12-regulating block, 13-is to fixture block, 14-diaphragm, 15-pallet, 16-scale-board.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of centre of gravity modulating valve, comprise valve body 1, valve gap 2, actuator 3 and be arranged on valve body 1 and valve gap 2 in spool and valve rod 4, spool bottom is equipped with the valve seat being arranged in valve body 1.Exotic material layer and internal surface that valve gap 2 comprises outer surface, by graphite, made.The bottom of valve body 1 is also fixed with valve base 5, and makes valve base 5 strengthen weight under the prerequisite that meets casting requirement.
As shown in Figure 2, actuator 3 comprises membrane cover 6 and lower membrane cover 7, between upper membrane cover 6 and lower membrane cover 7, be fixedly installed diaphragm 14, diaphragm 14 upper surfaces are equipped with pallet 15, lower membrane cover 7 belows are fixedly connected with the telescopic support 8 of hollow circuit cylinder body structure, and support 8 and valve gap 2 are bolted.In support 8, be provided with spring 10 and axis 9, axis 9 is the telescopic pipe of two joints, the lower end of axis 9 with valve rod 4 by fixture block 13 is connected, the upper end of the upper end of spring 10, axis 9 is bolted to connection with the lower surface of lower membrane cover 7 respectively, the lower end of spring 10 is fixedly connected with spring pad 11, spring pad 11 lower ends are connected with the regulating block 12 of adjustable axis 9 extending amounts, and regulating block 12 is connected with axis 9 by adjusting nut.Regulating block 12 can regulate the length of axis 9, thus compressible amount that can Regulation spring 10.Support 8 is also connected with a scale-board 16, in order to indicate valve opening position.
The utility model adopts high temperature resistant filler to reduce valve gap height, and the scheme of the actuator with spring fitting below air chamber reduces the center of gravity of valve integral body, has improved overall structure rigidity and the natural frequency of valve, makes valve can bear stronger seismic test.
Above embodiment is only explanation technological thought of the present utility model; can not limit protection domain of the present utility model with this; every technological thought according to the utility model proposes, any change of doing on technological scheme basis, within all falling into protection domain of the present utility model.
Claims (8)
1. a centre of gravity modulating valve, comprise valve body, valve gap, actuator and be arranged on valve body and valve gap in spool and valve rod, it is characterized in that: described spool bottom is equipped with the valve seat being arranged in valve body, described valve rod upper end connects and coordinates actuator, described actuator comprises membrane cover, lower membrane cover and be fixedly connected on the telescopic support of lower membrane cover below, in described support, be provided with spring and axis, the upper end of described spring, the upper end of axis is fixedly connected with the lower surface of lower membrane cover respectively, the lower end of spring is fixedly connected with spring pad, support is fixedly connected with valve gap, the lower end of axis is connected with valve rod.
2. centre of gravity modulating valve according to claim 1, is characterized in that: between described upper membrane cover and lower membrane cover, be fixedly installed diaphragm, diaphragm upper surface is equipped with pallet.
3. centre of gravity modulating valve according to claim 1, is characterized in that: described axis is telescopic pipe, and spring pad lower end is connected with the regulating block of adjustable axis extending amount, and described regulating block is connected with axis by adjusting nut.
4. according to the centre of gravity modulating valve described in claim 1 or 3, it is characterized in that: the lower end of described axis with valve rod by fixture block is connected.
5. centre of gravity modulating valve according to claim 1, is characterized in that: described support is hollow cylinder.
6. centre of gravity modulating valve according to claim 1, is characterized in that: described valve gap comprises outer surface, exotic material layer and internal surface.
7. centre of gravity modulating valve according to claim 6, is characterized in that: described exotic material layer is graphite layer.
8. according to the centre of gravity modulating valve described in claim 1 or 2 or 3 or 5 or 6, it is characterized in that: the bottom of described valve body is provided with valve base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192198.3U CN203770809U (en) | 2014-04-21 | 2014-04-21 | Low gravity center adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192198.3U CN203770809U (en) | 2014-04-21 | 2014-04-21 | Low gravity center adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770809U true CN203770809U (en) | 2014-08-13 |
Family
ID=51288000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420192198.3U Expired - Fee Related CN203770809U (en) | 2014-04-21 | 2014-04-21 | Low gravity center adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819338A (en) * | 2015-05-04 | 2015-08-05 | 中国海洋石油总公司 | Deep sea valve execution mechanism of leather bag type two-way pressure dynamic balance compensation device |
-
2014
- 2014-04-21 CN CN201420192198.3U patent/CN203770809U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819338A (en) * | 2015-05-04 | 2015-08-05 | 中国海洋石油总公司 | Deep sea valve execution mechanism of leather bag type two-way pressure dynamic balance compensation device |
| CN104819338B (en) * | 2015-05-04 | 2017-06-06 | 中国海洋石油总公司 | The deep sea valve executing agency of bladder bidirection press dynamic equilibrium compensation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105570376B (en) | Electrorheological fluid vibration damper | |
| KR101708002B1 (en) | A venting valve for cargo tanks | |
| CN201425104Y (en) | Ball valve | |
| CN104613124A (en) | Double-piston electro-rheological shock absorber | |
| CN203770809U (en) | Low gravity center adjusting valve | |
| CN202132564U (en) | Combined type multifunctional safety valve | |
| CN103453068B (en) | Frequency modulation type Buoyant Raft Shock-resistant System | |
| CN203832224U (en) | Engine suspension device with rigidity and damping adjustable | |
| CN103322249A (en) | Direct-acting sequence valve | |
| CN103291986A (en) | Directly-operated type reducing valve | |
| CN203656011U (en) | Vehicle shock absorber | |
| CN203477160U (en) | Hydraulic shock absorber with active adjustable damping | |
| KR20120010881A (en) | a variable compression ratio apparatus for a vehicle's engine | |
| CN202520680U (en) | Novel direct-acting overflow valve | |
| CN104019283A (en) | Oil pipeline support | |
| CN204239829U (en) | A kind of weight arm formula safety valve | |
| CN203906637U (en) | Hydraulic damper used for bicycle and electric bicycle | |
| CN203532939U (en) | Opening pressure indicator for steam air valve | |
| CN205117886U (en) | Thrust is floated and is cushioned industrial furnace hydraulic cylinder | |
| CN205745075U (en) | A kind of bearing amortisseur | |
| CN203146953U (en) | High-pressure-difference boiler feed water regulating valve | |
| CN209325784U (en) | A kind of clamping compresses formula incinerator | |
| CN2913643Y (en) | High-pressure reducing regulator for compressed natural gas | |
| CN104595637A (en) | Method for performing uniform force type installation on marine generator with externally connected shock absorbers | |
| CN202141498U (en) | Transformer oil level gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20190421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |