CN206398173U - Open labyrinth adjusting valve in advance - Google Patents
Open labyrinth adjusting valve in advance Download PDFInfo
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- CN206398173U CN206398173U CN201621483607.0U CN201621483607U CN206398173U CN 206398173 U CN206398173 U CN 206398173U CN 201621483607 U CN201621483607 U CN 201621483607U CN 206398173 U CN206398173 U CN 206398173U
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Abstract
Labyrinth adjusting valve is opened the utility model discloses one kind in advance, including valve body and valve seat, installation sleeve on medium channel in valve body, valve rod is provided with sleeve, flap and flap support are installed on valve rod, flap includes the big valve flap and small flap that split is set, and big valve flap coordinates with sleeve, and pre- unblank road is provided with the middle part of big valve flap；Pre- unblank road coordinates with small flap, is installed on the valve rod below small flap and flap support is provided with below labyrinth structure, labyrinth structure, flap support coordinates with valve rod can drive big valve flap relative sleeve to move.The utility model is provided with equalizing valve, equalizing valve below small flap on flap relative to existing telescoping valve and is provided with labyrinth structure, while equalizing valve is opened, the aperture in labyrinths at different levels and small flap aperture maintain like change, to share medium differential pressure, it is to avoid valve port erosion failure；After big valve flap and small flap Close All, the channel that can be leaked completely in blocked valve.
Description
Technical field
The utility model is related to a kind of valve, more particularly to can balance flap pressure difference and block one kind of valves leakage to open in advance
Labyrinth adjusting valve.
Background technology
Conventional high-temperature high-pressure medium regulating valve mainly has two kinds at present, and one kind is two-seat version, as shown in Figure 1；It is another
It is socket type, as shown in Figure 2.The shortcoming of wherein two-seat version is, due to foozle reason, is easily caused two closing force differences,
Leaked in being formed；There is gap and the shortcoming of socket type is, between sleeve and flap causes interior leakage, if addition soft sealed packing, one
It is meeting increasing friction force, two be the easy aging of soft sealed packing, is not suitable for being used for a long time under high temperature and high pressure environment.Both the above is adjusted
Save valve, although during regulation, the thrust that medium differential pressure is produced can be offset, but cause thrust not have due to interior leakage during shut-off
There is counteracting or be not completely counterbalanced by, cause opening force still very big.In addition, both valves are all present under big pressure difference condition of work
Valve port wash away problem.
In the other Chinese patent of applicant（Authorization Notice No. CN201706047U）In, disclose a kind of " micro- behaviour
Type valve ", including influent stream chamber, cushion chamber, outflow lumen, cushion chamber are arranged between influent stream chamber and outflow lumen, influent stream chamber set into
Mouthful, outflow lumen sets outlet, and above three chamber is situated between by valve element and opened, medium channel is set between cushion chamber and outflow lumen, is situated between
Control valve is set on matter path.The valve borrows medium pressure itself by amplification by setting control valve in medium channel
Effect, you can realize less control valve events, completes the big switch of valve and regulation action, rapid operation energy-conservation, reliability
Greatly increase, due in addition to big valve valve port without any passage leakage current, thus, it is possible to well solve valves leakage the problem of.But
The valve element of the valve is independently arranged in valve body, and using valve rod directly band movable valve plug in existing socket type regulating valve（Or valve
Valve）Structure it is different, because the valve element of micro-operation type valve is present without constraint quick condition, it sometimes appear that Vibration Condition, therefore,
Applicant is innovated and improved on the basis of " micro-operation type valve ", to solve leakage, valve port in existing socket type regulating valve
The problem of washing away, and " micro-operation type valve " disc vibration problem.
Utility model content
The utility model provides one kind and opens formula labyrinth adjusting valve in advance, to solve the problems of the prior art.
In order to realize the purpose of this utility model, using following technical scheme：
Pre- open sets valve in installation sleeve on labyrinth adjusting valve, including valve body and valve seat, the medium channel of valve body, sleeve
Flap and flap support are installed, the flap includes the big valve flap and small flap that split is set, and big valve flap is matched somebody with somebody with sleeve on bar, valve rod
Close, pre- unblank road is provided with the middle part of big valve flap；The pre- unblank road coordinates with small flap, and labyrinth is installed on the valve rod below small flap
Flap support is provided with below structure, labyrinth structure, flap support coordinates with valve rod can drive big valve flap relative sleeve to move.
Further to realize effect of the present utility model, following technical scheme can also be used.
Labyrinth adjusting valve is opened in advance as described above, and gap is provided between the big valve flap and sleeve.
Further, the aperture of the small flap is identical with the aperture in labyrinths at different levels, circulation when small flap aperture is maximum
Area is not less than more than 4 times of gap flow area.
The big valve flap is the tubular construction that Open Side Down, and tubular construction central area opens up vertical passageway and forms pre- unblank
Road.
Further, the small flap is located at the top of vertical passageway, and small flap bottom, vertical passageway port are respectively equipped with
The arcwall face or taper surface of mutual cooperation；The flap support is located at the tubular inboard below vertical passageway.
As described above to open labyrinth adjusting valve in advance, the valve rod lower end is fixedly mounted by cap, by the valve rod above cap
Spring pad and flap support are installed successively, the flap support center is provided with screw thread.
Labyrinth adjusting valve, the equal welding-on of the valve seat, sleeve and valve body are opened in advance as described above.
As described above to open labyrinth adjusting valve in advance, the big valve flap outer lower portion is provided with annular table.
Compared with existing socket type regulating valve, the beneficial effects of the utility model are：
The 1st, the pre- unblank set on equalizing valve, namely the small flap and big valve flap being connected with valve rod is set on big valve flap
Road, during valve opening, valve rod can drive small flap pretrigger, open pre- unblank road, so as to greatly reduce pressure difference, reduce big valve
The opening force of valve；Meanwhile, by setting small flap, when telescoping valve is closed, channel that can be to be leaked in blocked valve.
2nd, labyrinth structure is provided with below small flap, is opened simultaneously in equalizing valve, the aperture in labyrinths at different levels and small flap aperture
Change is maintained like, to share medium differential pressure, it is to avoid valve port erosion failure.
3rd, the utility model is provided with gap between big valve flap and sleeve, not bite when opening big valve flap, reduces it
Resistance, operation is more laborsaving, is easy to use.
4th, equalizing valve and labyrinth structure do not change the shape and volume of tunica cylinder, and existing socket type regulating valve can be carried out
Used after transformation, so as to larger reduction valve cost, effectively improve the use quality and life cycle of regulating valve.
5th, the utility model is provided with annular table in the periphery bottom of big valve flap, and the annular table is formed outwards relative to big valve flap
Projection, thus big valve flap can be ensured in the on state, produce downward pressure, big valve flap is departed from flap all the time
Support, it is to avoid big valve flap is under free suspended state the problems such as producing vibration, rotation and control failure.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described.
Fig. 1 is the structural representation of existing two-seat version regulating valve；
Fig. 2 is the structural representation of existing socket type regulating valve；
Fig. 3 is structural representation of the present utility model；
Fig. 4 is the top view of flap support described in Fig. 3.
Reference：1- valve bodies；2- valve seats；3- medium channels, 4- sleeves, 5- valve rods, 6- flaps, 61- big valve flaps, 62-
Small flap, 7- flap supports, the pre- unblank roads of 8-, 9- labyrinth structures, 10- gaps, 11- is by cap, 12- spring pads, 13- annular tables.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
As shown in Figure 2, Figure 3, Figure 4, the present embodiment is opened in labyrinth adjusting valve, including valve body 1 and valve seat 2, valve body 1 and is situated between in advance
It is provided with installation sleeve 4 on matter passage 3, sleeve 4 on valve rod 5, valve rod 5 and flap 6 and flap support 7 is installed, flap 6 is set including split
The big valve flap 61 and small flap 62 put, big valve flap 61 coordinate with sleeve 4, and the middle part of big valve flap 61 is provided with pre- unblank road 7；Pre- unblank road
7 coordinate with small flap 62, and labyrinth structure 9 is installed on the valve rod 5 of the small lower section of flap 62, and the lower section of labyrinth structure 9 is provided with flap support 7,
Flap support 7 coordinates with valve rod 5 can drive the relative sleeve 4 of big valve flap 61 to move.
In the present embodiment, the structure of big valve flap 61 is the tubular that Open Side Down, and the central area of tubular opens up vertical passageway, is made
For pre- unblank road 7；Small flap 62 is arranged on the top of vertical passageway and fixed with valve rod 5, and small flap 62 coordinates with vertical passageway
Formed before being opened relative to big valve flap 61, the equalizing valve that can be opened in advance；The lower section of small flap 62 is installed by labyrinth structure 9, valve rod 5
End is installed by cap 11, and flap support 7 and spring pad 12 are installed between cap 11 and labyrinth structure 9, and flap support 7 is used in small flap
After 62 open, drive big valve flap 61 to be moved up with valve rod 5, medium channel 3 is opened, namely open big valve, realize this regulation
The unlatching of valve.The center of flap support 7 is provided with screw thread, is come off when preventing it from coordinating with valve rod 5, and setting is easy to flap support 7 to pacify by cap 11
Dress, spring pad 12 can give cushioning effect certain during the activity of flap support 7, prevent it from damaging.The lower section of small flap 62 is provided with more
Level labyrinth mechanism, when equalizing valve is opened with the same aperture of small flap 62, to share medium differential pressure, it is to avoid valve port washes away damage
It is bad.For the ease of making and installing, valve seat 2 is embedded on valve body 1 with sleeve 4 using welding manner.
Specifically, the utility model opens labyrinth adjusting valve in advance, and flap 6 is arranged to the big valve flap 61 and small valve of split
Valve 62, big valve flap 61 coordinates with sleeve 4, and sets equalizing valve on big valve flap 61, and equalizing valve is including being located on big valve flap 61
Pre- unblank road 7 and with the small flap 62 on valve rod 5, small flap 62 coordinates with pre- unblank road 7.During valve opening, pass through valve
Bar 5 only needs to the lifting force with very little, first turns on equalizing valve, makes the both sides pressure balance of big valve flap 61 or disappearance, then enter one
Step opens big valve；During closing, big valve flap 61 is first shut off in place, and then small flap 62 closes equalizing valve.Once small flap 62
Close, under the closing force effect of same Impact direction, size flap 62 has blocked the channel of interior leakage simultaneously.The valve port of regulating valve
Problem is washed away, unlatching moment is occurred mainly in, the utility model has been given equalizing valve the moment of unlatching, set in equalizing valve bottom
There is labyrinth structure 9, using the feedback effect of small flap 62 and labyrinth structure 9, when equalizing valve aperture changes, labyrinths at different levels are opened
Degree and the small aperture of flap 62 maintain like the change of size, have thus divided equally medium differential pressure, it is to avoid valve port erosion failure.
In addition to disclosed in the present embodiment, big valve flap, the structure of small flap can also be other forms, as long as can be big
Before flap is opened, small flap is relative to big valve flap formation pretrigger；Flap support can also directly be fixedly mounted on big valve flap
On, drive big valve flap to coordinate with sleeve to close medium channel by small flap.Labyrinth structure with it is of the prior art identical,
It will not be repeated here.
In order that not bite during the unlatching of big valve flap 61, reduces its resistance, it is easy to use, regulation, in big valve flap 61 and sleeve 4
Between be provided with gap 10；Circulation area when the small aperture of flap 62 is maximum is not less than more than 4 times of the flow area of gap 10.As schemed
Shown in 3, the gap of the present embodiment is located at the middle part on the outside of big valve flap, the big valve flaps of the upper and lower parts in gap respectively with sleeve, valve
Seat forms fitted seal, can improve the stability of big valve flap.
Further, the present embodiment is respectively equipped with the arcwall face of mutual cooperation in the small bottom of flap 62, vertical passageway port
Or taper surface；Flap support 7 is located at the tubular inboard below vertical passageway.The arcwall face or taper surface cooperated is set, can be with
Improve the sealing property of small flap 62 and vertical passageway；Flap support 7 and the end of valve rod 5 are each provided on the inside of tubular construction, can be subtracted
The volume of small sleeve 4, makes the more reasonable structure, compact of this regulating valve.
As shown in figure 3, the outer lower portion of big valve flap 61 is provided with annular table 13 in the present embodiment.The annular table 13 is relative to big
Flap 61 forms outside projection, thus can ensure big valve flap 61 in the on state, produces downward pressure, makes big valve flap
61 can not depart from flap support 7 all the time, it is to avoid big valve flap 61, which is under free suspended state, produces vibration, rotation and control failure
The problems such as.Annular table 13 is preferably provided at the downside in gap 10, is easy to processing and manufacturing, provides stable and larger to big valve flap 61
Downward pressure.
The utility model opens labyrinth adjusting valve in advance, as shown in Figure 2 and Figure 3, can be on existing sleeve adjusting valve basis
On, to flap（Valve element）Carry out transformation to use, equalizing valve and labyrinth structure 9 do not change the shape and volume of tunica cylinder, so that most
The cost for the reduction regulating valve changed greatly, and efficiency improves the use quality and life cycle of regulating valve.
The technology contents of the not detailed description of the utility model are known technology.
Claims (8)
1. pre- open sets valve in installation sleeve on labyrinth adjusting valve, including valve body and valve seat, the medium channel of valve body, sleeve
Flap and flap support are installed, it is characterised in that the flap includes the big valve flap and small flap that split is set, greatly on bar, valve rod
Flap coordinates with sleeve, and its middle part is provided with pre- unblank road；The pre- unblank road coordinates with small flap, on the valve rod below small flap
Install and flap support is provided with below labyrinth structure, labyrinth structure, flap support coordinates with valve rod can drive big valve flap relative sleeve to move
It is dynamic.
2. pre- labyrinth adjusting valve is opened according to claim 1, it is characterised in that be provided between the big valve flap and sleeve
Gap.
3. pre- labyrinth adjusting valve is opened according to claim 2, it is characterised in that the aperture of the small flap and fans at different levels
The aperture in palace is identical, and circulation area when small flap aperture is maximum is not less than more than 4 times of gap flow area.
4. pre- labyrinth adjusting valve is opened according to claim 1, it is characterised in that the big valve flap is the cylinder that Open Side Down
Shape structure, tubular construction central area opens up vertical passageway and forms pre- unblank road.
5. pre- labyrinth adjusting valve is opened according to claim 4, it is characterised in that the small flap is located at vertical passageway
Top, small flap bottom, vertical passageway port are respectively equipped with the arcwall face or taper surface of mutual cooperation；The flap support is located at perpendicular
To the tubular inboard below passage.
6. pre- labyrinth adjusting valve is opened according to claim 1, it is characterised in that quilt is fixedly mounted in the valve rod lower end
Cap, is installed spring pad and flap support successively on the valve rod above cap, the flap support center is provided with screw thread.
7. pre- labyrinth adjusting valve is opened according to claim 1, it is characterised in that the equal welding-on of the valve seat, sleeve and valve
Body.
8. pre- labyrinth adjusting valve is opened according to claim 1, it is characterised in that the big valve flap outer lower portion is provided with ring
Shape platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621483607.0U CN206398173U (en) | 2016-12-30 | 2016-12-30 | Open labyrinth adjusting valve in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621483607.0U CN206398173U (en) | 2016-12-30 | 2016-12-30 | Open labyrinth adjusting valve in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206398173U true CN206398173U (en) | 2017-08-11 |
Family
ID=59515987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621483607.0U Active CN206398173U (en) | 2016-12-30 | 2016-12-30 | Open labyrinth adjusting valve in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206398173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251512A (en) * | 2021-12-08 | 2022-03-29 | 西安热工研究院有限公司 | Low pressure side sealed pre-opening type multi-stage pressure reducing device |
-
2016
- 2016-12-30 CN CN201621483607.0U patent/CN206398173U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251512A (en) * | 2021-12-08 | 2022-03-29 | 西安热工研究院有限公司 | Low pressure side sealed pre-opening type multi-stage pressure reducing device |
| CN114251512B (en) * | 2021-12-08 | 2024-06-04 | 西安热工研究院有限公司 | Pre-opening type multistage pressure reducing device with low-pressure side seal |
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