CN205118270U - Improved generation film pneumatic control valve - Google Patents
Improved generation film pneumatic control valve Download PDFInfo
- Publication number
- CN205118270U CN205118270U CN201520995463.6U CN201520995463U CN205118270U CN 205118270 U CN205118270 U CN 205118270U CN 201520995463 U CN201520995463 U CN 201520995463U CN 205118270 U CN205118270 U CN 205118270U
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- CN
- China
- Prior art keywords
- control valve
- pneumatic control
- valve seat
- cover
- connecting rod
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- Withdrawn - After Issue
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Abstract
The utility model relates to an improved generation film pneumatic control valve, its characterized in that case including the core that is located inlet channel and air outlet channel department with fix the lower valve rod in the core below, connecting rod that the lower valve rod includes the reference column of wearing out the disk seat and is located the disk seat, balancing portion is gone up for being hemispherical to the lower extreme of core, the upper end of reference column is for being balancing portion under the hemisphere, upward balancing portion and balancing portion sets up in opposite directions down, and upward balancing portion and lower balancing portion are connected to the connecting rod, and the horizontal section size of reference column is greater than the horizontal section size of connecting rod. The utility model discloses the beneficial effect who has: 1, through last balancing portion, balancing portion's setting down, form steady air current, the case can promptly and accurately be closed. 2, the transverse dimension of connecting rod is unsuitable big, avoids receiving the steam impact force to influence, further ensures the case and can the accuracy close, avoids disappointing. 3, the setting of reference column can make the case steadily open or close, avoids the swing.
Description
Technical field
The utility model relates to a kind of modified model film pneumatic control valve.
Background technique
Single seat pneumatic diaphragm control valve has easy sealing, advantage that leakage rate is little, and what be used in steam heated equipment enters the air inflow that well can control steam in steam line.But there is the defect that unbalanced force is larger during switch, when this just requires work, pressure reduction is not easily excessive.Reason is: larger pressure reduction appears in the steam imported and exported through single seat pneumatic diaphragm control valve at steam in steam line, and spool just there will be closes phenomenon not in place, causes heating and temperature control inaccurate and affects production quality.
And although unbalanced force is little when sleeve pneumatic diaphragm control valve and two-seater pneumatic diaphragm control valve switch, not by the impact of the import and export steam pressure difference size of valve, in use because leak the degree of accuracy of the heating and temperature control of considerable influence equipment.When equipment needs to use water cooling, because valve closing is not in place cause steam leakage, not only cause the waste of steam, also can cause a burst of sound of pipeline because steam meets cold water, even cause pipe vibration to depart from origin-location, pipeline skew also can cause the dangerous hidden danger of valve and channel bend explosion.
Summary of the invention
The purpose of this utility model is the problems referred to above that solution prior art exists and provides a kind of modified model film pneumatic control valve, by the setting in upper balance portion, lower balance portion, counteract steam respectively and enter the upper impact force after valve body and lower impact force, form smooth air, spool is avoided to be subject to excessive impact force and can not to reset, spool can closedown promptly and accurately, avoids spool to be not closed completely and occurs that the phenomenon of leaked steam occurs.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: modified model film pneumatic control valve, comprise the valve seat with suction port and air outlet, be arranged on the gas-entered passageway in valve seat and outlet passageway, the joint of described gas-entered passageway and described outlet passageway arranges spool, it is characterized in that described spool comprises the core being positioned at described gas-entered passageway and described outlet passageway place and the lower valve rod be fixed on below core, described lower valve rod comprises the locating column passing valve seat and the connecting rod being positioned at valve seat, the lower end of described core is for being hemispheric upper balance portion, the upper end of described locating column is be balance portion under hemisphere, described upper balance portion and described lower balance portion are arranged in opposite directions, described connecting rod connects upper balance portion and lower balance portion, the cross-sectional dimension of described locating column is greater than the cross-sectional dimension of described connecting rod.By the setting in upper balance portion, lower balance portion, counteract steam respectively and enter the upper impact force after valve body and lower impact force, form smooth air, spool is avoided to be subject to excessive impact force and can not to reset, spool can closedown promptly and accurately, avoids spool to be not closed completely and occurs that the phenomenon of leaked steam occurs.In order to further balance-impact power, the transverse dimension of connecting rod is unsuitable large, and under the prerequisite possessing enough push-pull efforts, the transverse dimension of connecting rod is the smaller the better.If the transverse dimension of connecting rod is comparatively large, then the power of vapor action on connecting rod is also corresponding comparatively large, can affect spool displacement equally and can not accurately close.
As improving further and supplementing technique scheme, the utility model adopts following technical measures: in order to make the impact force counteract of steam, the diameter in described upper balance portion and the diameter in described lower balance portion suitable.
As a rule, described connecting rod cross-sectional dimension is 0.2-0.6 times of described locating column cross-sectional dimension.If the size of valve body is enough large, then the transverse dimension of connecting rod can further reduce.
The upper end of described core has the sealed cap being positioned at described outlet passageway, and the edge of described sealed cap extends in the periphery of described core, and conflicts with described valve seat and coordinate.When closing spool, sealed cap is complied with and is formed sealing.
In order to make to possess sealing between locating column valve seat, between described locating column and described valve seat, be provided with the first Sealing.
Described valve seat lower end arranges lower cover, described lower cover lower end arranges lower cover, described locating column lower end passes described lower cover and lower cover successively, and described first Sealing is arranged between described lower cover and described locating column, and spacing on described valve seat by described lower cover.The setting of lower cover and lower cover can form the stroke passage of sufficiently long locating column, locating column can be moved up and down stably, avoid the swing of locating column in moving process as far as possible, improve the stability of valve body.Meanwhile, can be firmly spacing by the first Sealing cleverly by lower cover.
Described valve seat upper end arranges upper cover, and cover on described and be provided with some radiating fin of longitudinally arranging, the upper surface of described seal spool cap fixes a upper valve rod, and described upper valve rod successively through described valve seat and upper cover, and and arranges the second Sealing between described upper cover.Radiating fin is used for the heat radiation to upper valve rod, because upper valve rod length is longer, and frequently movement, fumigate by steam simultaneously, there is a large amount of heat, need to distribute in time.
A support is fixed in described upper cover upper end, one stroke scale is set in described support, described upper valve rod upwards extends and passes described support, and the part that described upper valve rod is positioned at described support arranges an indicating members, and the instruction unit of described indicating members is pointed to and described stroke scale.By the cooperation of indicating members and stroke scale, can indicate spool opening degree can specify spool relative to position.
Arrange a upper press cover in described support, described second Sealing extends to described support and spacing by described upper press cover.
Described pedestal upper end arranges a pneumatic actuator, and described upper valve rod upper end to extend in described pneumatic actuator and is connected with the film lobe in pneumatic actuator.Unlatching or the closedown of spool is controlled by pneumatic actuator.
The beneficial effect that the utility model has: 1, by the setting in upper balance portion, lower balance portion, counteract steam respectively and enter the upper impact force after valve body and lower impact force, form smooth air, spool is avoided to be subject to excessive impact force and can not to reset, spool can closedown promptly and accurately, avoids spool to be not closed completely and occurs that the phenomenon of leaked steam occurs.2, in order to further balance-impact power, the transverse dimension of connecting rod is unsuitable large, and under the prerequisite possessing enough push-pull efforts, the transverse dimension of connecting rod is the smaller the better, and avoiding affects by steam impringement power, guarantees that spool can accurately be closed further, avoids losing heart.3, the setting of locating column can make spool steadily open or close, and avoids swinging.4, the setting of the first Sealing and the second Sealing, guarantees that valve body is air tight.5, the setting of indicating device and stroke scale, can specify valve element position, convenient control.6, the setting of radiating fin, avoids upper valve rod overheated and affects the precision maneuver of spool.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the structural representation of spool opening state in the utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: modified model film pneumatic control valve, as shown in Figure 1, it comprises the valve seat 12 with suction port 15 and air outlet 16, be arranged on the gas-entered passageway in valve seat and outlet passageway, the joint of described gas-entered passageway and described outlet passageway arranges spool 11, described spool 11 comprises the core being positioned at described gas-entered passageway and described outlet passageway place and the lower valve rod be fixed on below core, described lower valve rod comprises the locating column 111 passing valve seat and the connecting rod 112 being positioned at valve seat, the lower end of described core is for being hemispheric upper balance portion 113, the upper end of described locating column 111 is be balance portion 114 under hemisphere, described upper balance portion 113 and described lower balance portion 114 are arranged in opposite directions, described connecting rod 112 connects upper balance portion 113 and lower balance portion 114, the cross-sectional dimension of described locating column 111 is greater than the cross-sectional dimension of described connecting rod 112.Furthermore, the cross-sectional dimension of described balancing pole 112 is 0.2-0.6 times of described locating column 111 cross-sectional dimension.
The diameter in described upper balance portion 113 and the diameter in described lower balance portion 114 suitable.If the size of valve body is enough large, then the transverse dimension of connecting rod can further reduce.
The upper end of described core has the sealed cap 115 being positioned at described outlet passageway, and the edge of described sealed cap 115 extends in the periphery of described core, and conflicts with described valve seat and coordinate.
Sealing in order to ensure valve body:
The first Sealing 10 is provided with between described locating column 111 and described valve seat 12.
Described valve seat 12 lower end arranges lower cover 13, described lower cover 13 lower end arranges lower cover 14, described locating column 111 lower end passes described lower cover 13 and lower cover 14 successively, described first Sealing 10 is arranged between described lower cover 13 and described locating column 111, and spacing on described valve seat by described lower cover 13.
Described valve seat 12 upper end arranges upper cover 9, described upper cover 9 is provided with some radiating fin 8 of longitudinally arranging, the upper surface of described seal spool cap 115 fixes a upper valve rod 6, and described upper valve rod 6 successively through described valve seat and upper cover, and and arranges the second Sealing 5 between described upper cover 9.Arrange a upper press cover 7 in described support 1, described second Sealing 10 extends to described support and spacing by described upper press cover 7.
Conveniently show the position of spool, a support 1 is fixed in described upper cover 9 upper end, in described support 1, one stroke scale 4 is set, described upper valve rod 6 upwards extends and passes described support 1, and the part that described upper valve rod 6 is positioned at described support 1 arranges an indicating members 3(as needle dial), the instruction unit of described indicating members 3 is pointed to and described stroke scale 4.
Described support 1 upper end arranges a pneumatic actuator, and described upper valve rod 6 upper end to extend in described pneumatic actuator and is connected with the film lobe in pneumatic actuator.
Opened by pneumatic actuator or close spool.When pneumatic actuator drive upper valve rod moves, spool is opened and gas-entered passageway is communicated with outlet passageway (as shown in Figure 1), drive upper valve rod to move down reset when pneumatic actuator resets, then spool is closed and gas-entered passageway is communicated with (as shown in Figure 2) with outlet passageway disconnection.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model.In the above-described embodiments, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. modified model film pneumatic control valve, comprise the valve seat (12) with suction port (15) and air outlet (16), be arranged on the gas-entered passageway in valve seat and outlet passageway, the joint of described gas-entered passageway and described outlet passageway arranges spool (11), it is characterized in that described spool (11) comprises the core being positioned at described gas-entered passageway and described outlet passageway place and the lower valve rod be fixed on below core, described lower valve rod comprises the locating column (111) passing valve seat and the connecting rod (112) being positioned at valve seat, the lower end of described core is for being hemispheric upper balance portion (113), the upper end of described locating column (111) is be balance portion (114) under hemisphere, described upper balance portion (113) and described lower balance portion (114) are arranged in opposite directions, balance portion (113) and lower balance portion (114) in described connecting rod (112) connection, the cross-sectional dimension of described locating column (111) is greater than the cross-sectional dimension of described connecting rod (112).
2. modified model film pneumatic control valve according to claim 1, is characterized in that the diameter of the diameter of described upper balance portion (113) and described lower balance portion (114) is suitable.
3. modified model film pneumatic control valve according to claim 1 and 2, is characterized in that described connecting rod (112) cross-sectional dimension is 0.2-0.6 times of described locating column (111) cross-sectional dimension.
4. modified model film pneumatic control valve according to claim 3, it is characterized in that the upper end of described core has the sealed cap (115) being positioned at described outlet passageway, the edge of described sealed cap (115) extends in the periphery of described core, and conflicts with described valve seat and coordinate.
5. modified model film pneumatic control valve according to claim 2, is characterized in that being provided with the first Sealing (10) between described locating column (111) and described valve seat (12).
6. modified model film pneumatic control valve according to claim 5, it is characterized in that described valve seat (12) lower end arranges lower cover (13), described lower cover (13) lower end arranges lower cover (14), described locating column (111) lower end passes described lower cover (13) and lower cover (14) successively, described first Sealing (10) is arranged between described lower cover (13) and described locating column (111), and spacing on described valve seat by described lower cover (13).
7. modified model film pneumatic control valve according to claim 4, it is characterized in that described valve seat (12) upper end arranges upper cover (9), described upper cover (9) is provided with some radiating fin (8) of longitudinally arranging, the upper surface of described seal spool cap (115) fixes a upper valve rod (6), described upper valve rod (6) successively through described valve seat and upper cover, and and arranges the second Sealing (5) between described upper cover (9).
8. modified model film pneumatic control valve according to claim 7, it is characterized in that a support (1) is fixed in described upper cover (9) upper end, one stroke scale (4) is set in described support (1), described upper valve rod (6) upwards extends and passes described support (1), and the part that described upper valve rod (6) is positioned at described support (1) arranges an indicating members (3), the instruction unit of described indicating members (3) is pointed to and described stroke scale (4).
9. modified model film pneumatic control valve according to claim 8, is characterized in that arranging a upper press cover (7) in described support (1), and described second Sealing (10) extends to described support and spacing by described upper press cover (7).
10. modified model film pneumatic control valve according to claim 8, is characterized in that described support (1) upper end arranges a pneumatic actuator, and described upper valve rod (6) upper end to extend in described pneumatic actuator and is connected with the film lobe in pneumatic actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520995463.6U CN205118270U (en) | 2015-12-03 | 2015-12-03 | Improved generation film pneumatic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520995463.6U CN205118270U (en) | 2015-12-03 | 2015-12-03 | Improved generation film pneumatic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205118270U true CN205118270U (en) | 2016-03-30 |
Family
ID=55573884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520995463.6U Withdrawn - After Issue CN205118270U (en) | 2015-12-03 | 2015-12-03 | Improved generation film pneumatic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205118270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422870A (en) * | 2015-12-03 | 2016-03-23 | 衢州联盛方略技术开发有限公司 | Improved thin film pneumatic adjusting valve |
| CN110345263A (en) * | 2019-07-26 | 2019-10-18 | 杨佳洲 | A kind of Pneumatic two-position cut-off valve |
-
2015
- 2015-12-03 CN CN201520995463.6U patent/CN205118270U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422870A (en) * | 2015-12-03 | 2016-03-23 | 衢州联盛方略技术开发有限公司 | Improved thin film pneumatic adjusting valve |
| CN105422870B (en) * | 2015-12-03 | 2019-01-04 | 衢州联盛方略技术开发有限公司 | Modified film pneumatic control valve |
| CN110345263A (en) * | 2019-07-26 | 2019-10-18 | 杨佳洲 | A kind of Pneumatic two-position cut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Quzhou Shengchuang Automation Equipment Co., Ltd. Assignor: QUZHOU LIANSHENG FANGLUE TECHNOLOGY DEVELOPMENT CO., LTD. Contract record no.: 2016990000397 Denomination of utility model: Improved thin film pneumatic adjusting valve Granted publication date: 20160330 License type: Exclusive License Record date: 20160919 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20190104 |