CN203670828U - Inflation type butterfly valve - Google Patents
Inflation type butterfly valve Download PDFInfo
- Publication number
- CN203670828U CN203670828U CN201320729207.3U CN201320729207U CN203670828U CN 203670828 U CN203670828 U CN 203670828U CN 201320729207 U CN201320729207 U CN 201320729207U CN 203670828 U CN203670828 U CN 203670828U
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- valve
- pneumatic actuator
- gas
- valve shaft
- type butterfly
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses an inflation type butterfly valve which comprises a valve base, a valve shaft and a butterfly plate part. The valve base is provided with a medium channel which is provided with a center line in the axial direction; the valve shaft is arranged on the valve base and is provided with a rotary axis, and the rotary axis extends and penetrates through the center line; the butterfly plate part is fixed to the valve shaft and located in the channel; an extending portion provided with a valve shaft installation channel inside is arranged above the valve base, the free end of the extending portion is provided with a pneumatic actuator installation flange, the pneumatic actuator installation flange is provided with a pneumatic actuator, a drive shaft of the pneumatic actuator is connected with the valve shaft, the inner wall of the valve base is provided with an annular insert made of an elastic material in the circumferential direction, the insert is provided with two embedding ends used for being embedded into the valve base and a deformable portion which is located between the embedding ends and forms an inflatable cavity with the inner wall of the valve base, the inflatable cavity is communicated with an inflation hole formed in a valve body, and the pneumatic actuator and the inflation hole of the valve body are connected with an external gas source through an electromagnetic valve. The inflation type butterfly valve has the advantages of being low in friction, small in torque, resistant to abrasion, long in service life and suitable for the field of chemical engineering.
Description
Technical field
The utility model relates to a kind of valve for chemical field, especially relates to a kind of gas-filled type butterfly valve.
Background technique
The particularity of air-transport system working environment has determined to coordinate the valve of its use must meet its working condition requirement, cut-off fed sheet of a media adopts butterfly valve more, for using the butterfly valve of rubber sealing structure, it is because torque is compared with operating greatly comparatively inconvenience, and between sealing configuration and valve body, under long-term rubbing action, wear intensity is higher, affect the airtight performance of butterfly valve, and then affect the work of whole transporting system.
For chemical field, butterfly plate easily produces friction at opening-closing process and also easily causes security incident, the situation of blasting such as the medium causing in transporting system, and this is quite dangerous.
Model utility content
The purpose of this utility model is exactly in order to address the above problem, and the gas-filled type butterfly valve of a kind of low friction, little moment of torsion, wear-resistant and long-life is provided.
To achieve these goals, the utility model adopts following technological scheme:
A kind of gas-filled type butterfly valve, has:
Valve seat, it has medium channel, and this passage has center line on its axial direction;
The valve shaft that is rotatably installed on valve seat, it has rotation axis, and this rotation axis extends through center line;
Butterfly plate parts, it is fixed on valve shaft and is arranged in passage;
It is characterized in that, in having, described valve seat top establishes the extension part of valve shaft installation passage, described extension part free end has pneumatic actuator mounting flange, be positioned at pneumatic actuator mounting flange and be provided with pneumatic actuator, the live axle of pneumatic actuator connects valve shaft, described valve base inner wall circumferentially embeds the annular embedded body of flexible body material, described embedded body has the built-in end of two inserted valve seats and form the deformable segment of inflatable cavity between built-in end and with valve base inner wall, described inflatable cavity communicates with the air-filled pore of valve body setting, described pneumatic actuator, the air-filled pore of valve body all accesses external air source by solenoid valve.
Further, the built-in end of described embedded body is positioned at the axial end position of valve channel, and described end position has and is positioned on valve body and the annular embedded groove of circumferential arrangement and be positioned at the arc groove of embedded groove inwall.
Further, the inner circle wall of described embedded body has annular relief, and the free end position of described built-in end is in the embedding sealing portion of the set arc groove coupling of valve body.
Further, described embedded body is made up of rubber material.
Further, described embedded body is the one in EPDM, nitrile rubber, polyurethane (PU), polyurethane, fluorine rubber, FDA silicone rubber, FDA white nitrile rubber, FDA white EPDM, FDA white fluorine rubber, also or wherein two or three or four kind or five kinds or six kinds or seven kinds or eight kinds or be all mixed, the mixed proportion that different raw materials adopts can, by mixed in equal amounts principle, also can determine according to different operating modes the mixed proportion of different material.
Further, described butterfly plate part locks to enclose with chek bolt and is fixed on valve shaft.
Further, the valve shaft at the set valve shaft passage of described valve body place is provided with at least one wear ring.
Further, described valve shaft passage upper end has the circular orientation part mounting platform that is positioned at valve body, and described mounting platform has the axially locating circle being sheathed on valve shaft.
Further, described valve shaft passage upper end has at least one O shape circle that is sheathed on valve shaft.
Further, described pneumatic actuator is provided with limit switch.
The working method of this gas-filled type butterfly valve is:
When needs are closed in butterfly plate parts, first solenoid valve is connected external air source and is entered pneumatic actuator, thereby drive valve shaft to rotate, and then realize closing of butterfly plate parts, then, solenoid valve is connected external air source again and is entered between built-in end and with valve base inner wall and form in inflatable cavity, thereby realizes the sealing effect of embedded body and butterfly plate parts; In the time that butterfly valve need to be opened, first inflatable cavity is exitted, then by inflate and then realize the breakdown action of valve shaft drive butterfly plate parts to pneumatic actuator.
The beneficial effects of the utility model are:
(1) this gas-filled type butterfly valve has the little feature that rubs between butterfly plate parts and the embedded body as Sealing, and torque is little, wearing and tearing between valve shaft and valve channel, between butterfly plate parts and Sealing are lower, thereby improve the working life of whole butterfly valve, and this gas-filled type butterfly valve is easy to care and maintenance, be particularly suitable for chemical field, especially field of polysilicon production;
(2) this gas-filled type butterfly valve provides two way sealed performance, and works long hours and also can not break down;
(3) Position Design of valve shaft, avoids valve seat to bear extra load;
(4) valve shaft has the wear ring that macromolecular material is made, and valve shaft is rotated flexibly, and moment of torsion is little, weares and teares little;
(5) chek bolt locks the structural design of circle, make butterfly plate parts long-term use also not can and valve shaft between get loose.
Accompanying drawing explanation
Fig. 1 is the partial sectional view of gas-filled type butterfly valve in decomposing state;
Fig. 2 is the left view of gas-filled type butterfly valve in decomposing state;
Fig. 3 is A-A sectional view in Fig. 2;
Fig. 4 is I place enlarged view in Fig. 1;
Fig. 5 is gas-filled type butterfly valve working state schematic representation one;
Fig. 6 is gas-filled type butterfly valve working state schematic representation two;
Fig. 7 is gas-filled type butterfly valve working state schematic representation three;
Fig. 8 is gas-filled type butterfly valve working state schematic representation four.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Fig. 1～4, a kind of gas-filled type butterfly valve, comprise the valve body part L being formed by valve seat 10, valve shaft 12, butterfly plate parts, the control mechanism K of proportioning valve body some work, thereby the rotation of the main charge control valve axle of this control mechanism K realizes the opening and closing of butterfly plate parts, this control structure K clipped structure, this part abridged structure has the function whether control filled, exitted to the embedded body of establishing in valve body, thus facilitate butterfly plate parts unlatching, close.
Referring to Fig. 1～3, the valve seat 10 being formed by housing, it has medium channel 11, and this passage has center line Z on its axial direction, and the upper end of valve seat has valve shaft passage is installed;
Referring to Fig. 1,3, be rotatably installed on the valve shaft 12 of valve seat, it has rotation axis E, and this rotation axis extends through center line Z, and insert in valve seat rotationally the lower end of valve shaft, and the top of valve shaft adopts square toes design;
Referring to Fig. 1,3, butterfly plate parts 13, it is fixed on valve shaft and is arranged in passage;
In having, described valve seat top establishes the extension part of valve shaft installation passage, described extension part free end has pneumatic actuator mounting flange R, be positioned at pneumatic actuator mounting flange and be provided with pneumatic actuator 19, the live axle of pneumatic actuator connects valve shaft, described valve base inner wall circumferentially embeds the annular embedded body 14 of flexible body material, described embedded body has the built-in end of two inserted valve seats and form the deformable segment of inflatable cavity between built-in end and with valve base inner wall, described inflatable cavity communicates with the air-filled pore of valve body setting, described pneumatic actuator, the air-filled pore of valve body all accesses external air source by solenoid valve, in access external air source, can dyad be installed in inlet line, inlet line through dyad is divided into two circuits: wherein a link tester is crossed two-position-five-way solenoid valve access pneumatic actuator, another accesses air-filled pore position by two-position three way magnetic valve, certainly, in the situation that allowing, line design is separately convenient to operation and the control to solenoid valve, also can according to circumstances select the solenoid valve of other type, only need to meet course of action of the present utility model.
Pneumatic actuator drives butterfly plate parts to be arranged in passage and turn 90 degrees the open and close action that realizes butterfly plate parts for positive and negative time, for pneumatic actuator, and can mounting limit switch.
Referring to Fig. 1,4, the built-in end of described embedded body is positioned at the axial end position of valve channel, and described end position has and is positioned on valve body and the annular embedded groove of circumferential arrangement and be positioned at the arc groove M of embedded groove inwall.
In the time that the inner circle wall of described embedded body has annular relief, the deformable segment that can realize as early as possible embedded body in the time that embedded body is inflated contacts with butterfly plate parts, thereby accelerate the speed of sealing, because butterfly plate parts are roughly rounded, and butterfly plate parts are typically designed to flat but not coherent circular arc near the upper and lower end parts of embedded body, and in order to coordinate the installation needs of valve shaft, now need to the straight boss 15 mating with butterfly plate member profile be set in the relevant position of embedded body, its structure is shown in Figure 4, the free end position of described built-in end is in the M ' of embedding sealing portion of the set arc groove coupling of valve body, because embedded body is made up of corrosion resistant rubber material, and preferably EPDM, after the inflatable cavity inflation of pneumatic actuator between valve interior wall and embedded body, the deformable segment generation deformation of embedded body and gradually expansion, until form closure mechanism with the butterfly plate part in closed condition.
Referring to Fig. 1, described butterfly plate part locks circle with chek bolt 16 and is fixed on valve shaft, and butterfly plate part has vertical cavity, and this cavity is used for installing valve shaft, has bolt mounting holes and be positioned at butterfly plate parts one side (air-tightness is intended to guarantee in non-both sides).
Referring to Fig. 1,3, the valve shaft at the set valve shaft passage of described valve body place is provided with two wear rings 17, has a segment distance between wear ring, and this is to design according to the length of valve shaft, if valve shaft is grown more wear ring also can be set.
Referring to Fig. 1,3, described valve shaft passage upper end has the circular orientation part mounting platform that is positioned at valve body, described mounting platform has the axially locating circle 18 being sheathed on valve shaft, the Position Design of valve shaft, avoid valve seat to bear extra load, the underpart that valve shaft is positioned at valve seat can adopt bearing to be fixed, and is convenient to the rotation of valve shaft.
Referring to Fig. 3, described valve shaft passage upper end has the two O shape circles 20 that are sheathed on valve shaft, effectively plays airtight operation for valve body, certainly, through the part of embedded body, seal ring also can be installed for valve shaft, further strengthens seal.
The working state of gas-filled type butterfly valve can, referring to the rough schematic view of Fig. 5～8, there is shown the working cycle diagram of whole gas-filled type butterfly valve:
Situation shown in Fig. 5 is the closed condition of gas-filled type butterfly valve, between butterfly plate parts and valve seat, has gap, therefore resistance is little while unlatching, weares and teares low, and the butterfly valve life-span is extended;
Situation shown in Fig. 6 is the opening state of gas-filled type butterfly valve, before valve open, first tighten as the embedded body of seal ring, the process of this deflation relies on the disappointing operation of air-filled pore to complete, then butterfly plate parts freely turn to enable possition, and this action is by having inflated pneumatic actuator;
Situation shown in Fig. 7 is the closed condition of gas-filled type butterfly valve, and the embedded body exhaust that unlatching previous crops is seal ring is lowered unlatching moment of torsion, reduced wearing and tearing;
Situation shown in Fig. 8 is the sealing state of gas-filled type butterfly valve, as the embedded body inflation of seal ring, makes to obtain between butterfly plate parts and embedded body the close contact of maximum area, thereby reaches good sealing effect.
The both sides that are positioned at valve body can arrange flange connector embedded body is sealed, to interconnect with system pipeline.
This product adopts gas pressure that the embedded body that is installed on valve seat is stretched towards butterfly plate parts, so that the pressure of Stationary Distribution is provided for sealing at any time, due to during the opening and closing of valve, only can there is instantaneous contact with the embedded body of valve seat in butterfly plate parts, thereby make butterfly plate parts only be subject to slight collision, on the contrary, for general butterfly valve, butterfly plate parts nuzzle up Sealing produce collision, performance and the life-span that can reduce valve.
Gas-filled type butterfly valve only needs very little moment of torsion in the time opening and closing, and can use so very little pneumatic actuator, thereby reduce the energy requirement of whole valve.
The problem of how controlling for the source of the gas of access, in the situation that not considering Economy, can arrange separately different solenoid valves and manipulate for pneumatic actuator and air-filled pore respectively, and certainly, aforesaid structural design also allows.
For the material problem of embedded body, include but not limited to described situation herein, when in the situation that adopts plurality of raw materials to mix, can be prepared according to mixed in equal amounts principle, the different raw material proportioning of adjustment that also can be suitable as for the difference of the applicable environment of butterfly valve, does not repeat them here.
Claims (10)
1. a gas-filled type butterfly valve, has: valve seat, and it has medium channel, and this passage has center line on its axial direction, the valve shaft that is rotatably installed on valve seat, it has rotation axis, and this rotation axis extends through center line, butterfly plate parts, it is fixed on valve shaft and is arranged in passage, it is characterized in that, in having, described valve seat top establishes the extension part of valve shaft installation passage, described extension part free end has pneumatic actuator mounting flange, be positioned at pneumatic actuator mounting flange and be provided with pneumatic actuator, the live axle of pneumatic actuator connects valve shaft, described valve base inner wall circumferentially embeds the annular embedded body of flexible body material, described embedded body has the built-in end of two inserted valve seats and form the deformable segment of inflatable cavity between built-in end and with valve base inner wall, described inflatable cavity communicates with the air-filled pore of valve body setting, described pneumatic actuator, the air-filled pore of valve body all accesses external air source by solenoid valve.
2. gas-filled type butterfly valve as claimed in claim 1, it is characterized in that, the built-in end of described embedded body is positioned at the axial end position of valve channel, and described end position has and is positioned on valve body and the annular embedded groove of circumferential arrangement and be positioned at the arc groove of embedded groove inwall.
3. gas-filled type butterfly valve as claimed in claim 1, is characterized in that, the inner circle wall of described embedded body has annular relief, and the free end position of described built-in end is in the embedding sealing portion of the set arc groove coupling of valve body.
4. gas-filled type butterfly valve as claimed in claim 1, is characterized in that, described embedded body is made up of rubber material.
5. the gas-filled type butterfly valve as described in as arbitrary in claim 1～4, it is characterized in that, described embedded body is the one in EPDM, nitrile rubber, polyurethane (PU), polyurethane, fluorine rubber, FDA silicone rubber, FDA white nitrile rubber, FDA white EPDM, FDA white fluorine rubber.
6. gas-filled type butterfly valve as claimed in claim 1, is characterized in that, described butterfly plate part locks circle with chek bolt and is fixed on valve shaft.
7. gas-filled type butterfly valve as claimed in claim 1, is characterized in that, the valve shaft at the set valve shaft passage of described valve body place is provided with at least one wear ring.
8. gas-filled type butterfly valve as claimed in claim 7, is characterized in that, described valve shaft passage upper end has the circular orientation part mounting platform that is positioned at valve body, and described mounting platform has the axially locating circle being sheathed on valve shaft.
9. gas-filled type butterfly valve as claimed in claim 7, is characterized in that, described valve shaft passage upper end has at least one O shape circle that is sheathed on valve shaft.
10. gas-filled type butterfly valve as claimed in claim 1, is characterized in that, described pneumatic actuator is provided with limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320729207.3U CN203670828U (en) | 2013-11-18 | 2013-11-18 | Inflation type butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320729207.3U CN203670828U (en) | 2013-11-18 | 2013-11-18 | Inflation type butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670828U true CN203670828U (en) | 2014-06-25 |
Family
ID=50967126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320729207.3U Expired - Fee Related CN203670828U (en) | 2013-11-18 | 2013-11-18 | Inflation type butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670828U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819312A (en) * | 2014-11-02 | 2015-08-05 | 潘泽忠 | Non-wear all seal valve |
| CN108869764A (en) * | 2018-09-03 | 2018-11-23 | 唐工阀门集团有限公司 | A kind of high leakproofness butterfly valve |
| CN109681645A (en) * | 2019-01-30 | 2019-04-26 | 黄雪文 | A kind of butterfly valve |
| CN110657245A (en) * | 2019-10-10 | 2020-01-07 | 徐辉 | Butterfly valve with enhanced sealing performance |
| CN111173986A (en) * | 2020-01-20 | 2020-05-19 | 邵延荣 | Pre-decompression butterfly valve |
-
2013
- 2013-11-18 CN CN201320729207.3U patent/CN203670828U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819312A (en) * | 2014-11-02 | 2015-08-05 | 潘泽忠 | Non-wear all seal valve |
| CN108869764A (en) * | 2018-09-03 | 2018-11-23 | 唐工阀门集团有限公司 | A kind of high leakproofness butterfly valve |
| CN108869764B (en) * | 2018-09-03 | 2023-08-29 | 唐工阀门集团有限公司 | High leakproofness butterfly valve |
| CN109681645A (en) * | 2019-01-30 | 2019-04-26 | 黄雪文 | A kind of butterfly valve |
| CN109681645B (en) * | 2019-01-30 | 2019-10-22 | 良工泵阀股份有限公司 | A kind of butterfly valve |
| CN110657245A (en) * | 2019-10-10 | 2020-01-07 | 徐辉 | Butterfly valve with enhanced sealing performance |
| CN111173986A (en) * | 2020-01-20 | 2020-05-19 | 邵延荣 | Pre-decompression butterfly valve |
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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: 20140625 Termination date: 20171118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |