CN105402421A - Double-layer elastically sealing lift valve - Google Patents
Double-layer elastically sealing lift valve Download PDFInfo
- Publication number
- CN105402421A CN105402421A CN201510926821.2A CN201510926821A CN105402421A CN 105402421 A CN105402421 A CN 105402421A CN 201510926821 A CN201510926821 A CN 201510926821A CN 105402421 A CN105402421 A CN 105402421A
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- China
- Prior art keywords
- valve
- seat
- valve plate
- guide rod
- double
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Classifications
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a double-layer elastically sealing lift valve which comprises a valve body with two layers of valve seats, valve plates and a lifting drive device connected with the valve plates through lifting guide rods. The bottom of the valve body is provided with a guide rod seat. The double-layer elastically sealing lift valve is characterized in that an upper compression spring is arranged above the upper-layer valve plate, and a lower compression spring is arranged above the low-layer valve plate. The lower compression spring is in the non-compression or stretching state, the distance A between the upper-layer valve plate and the lower-layer valve plate is larger than the distance B between the upper-layer valve seat and the lower-layer valve seat. The guide rod seat is used for precisely guiding a lifting guide rod mechanism through the lifting guide rods, and when the valve plates make contact with the valve seats, and compression spring devices press the valve plates to keep the valve plates making tight contact with the valve seat sealing strip faces. According to the structure, the two layers of valve plates and the two layers of valve seats are arranged, the compression springs are arranged on the two valve plates and meanwhile the distance between the valve plates is slightly larger than that between the valve seats so that the sealing effect can be more remarkable.
Description
Technical field
Patent of the present invention relates to the elastic packing poppet valve in a kind of dust pelletizing system, especially a kind of Double-layer elastic sealing lift valve that can be used as on sack cleaner that import and export stop valve on sack cleaner and combination bypass valve use.
Background technique
Dust pelletizing system is a part for integrated pot furnace system as boiler accessory machinery system, in order to better adapt to the normal requirements of one's work of steam generator system, improper boiler smoke is avoided to cause damage to filter bag, ensure that not affecting steam generator system normally works, must arrange bypath system in dust pelletizing system, wherein the parts of most critical are for importing and exporting stop valve and combination bypass valve.When sack cleaner normally works, for making smoke emissioning concentration meet NBS, must ensure that the leak-down rate of combination bypass valve is 0; Meanwhile, when improper flue gas appears in boiler, importing and exporting that stop valve and combination bypass valve want can unlatching fast and safely.Import and export stop valve and the by-pass valve of general employing are at present essentially multi-disc fly valve board combining structure or traditional veneer lifting type structure, multi-disc fly valve board combining structure can produce distortion when being heated, make to produce very large gap between each sheet valve plate, cause valve closing not tight; Traditional lifting type structure, although can ensure the impact of valve not temperature distortion, is linear contact lay at valve plate and valve seat, easily causes certain dust stratification, causes valve closing not tight.
Above two kinds of by-pass valves all effectively can not protect the filter bag of sack cleaner, once filter bag is compromised, will cause great loss.
Summary of the invention
For the problems of the prior art, the object of the invention is to provide a kind of novel Double-layer elastic sealing lift valve, this poppet valve can guarantee that rear No leakage closed by high-temperature systems flue, thus ensure that steam generator system normally works, and then guarantee that the normal use of stop valve and combination bypass valve imported and exported by sack cleaner.
In order to achieve the above object, technological scheme of the present invention is:
A kind of Double-layer elastic sealing lift valve, comprise the valve body that two-layer valve seat is set, valve plate, the lifting driving device be connected by promoting guide rod with valve plate, wherein, valve seat comprises superposed upper strata valve seat and is positioned at lower floor's valve seat of bottom, on upper strata valve seat and lower floor's valve seat all device by Stamping Steel Ribbon, the bottom of valve body is provided with guide rod seat, valve plate comprises the upper strata valve plate corresponding with upper strata valve seat and the lower floor valve plate corresponding with lower floor valve seat, it is characterized in that: the top device of described upper strata valve plate has upper pressing spring, the top device of lower floor's valve plate has lower pressing spring, when lower pressing spring is in uncompressed or extended state, distance A between upper strata valve plate and lower floor's valve plate is greater than the distance B between upper strata valve seat and lower floor's valve seat.Guide rod seat is used for the accurate leading role of lifting guide rod mechanism by promoting guide rod, and when valve plate contacts with valve seat, pressing spring device compressing valve plate seals with valve base sealing bar face close contact all the time.
Further, described lifting driving device, lifting guide rod, guide rod seat are all on the same axis.
Further, promote on guide rod and guide rod seat joint is provided with O-ring seal, sealing cushion rubber can be multiple.
Further, upper strata valve plate is larger than lower floor valve plate, and the two is circle.
Further, promoting interporal lacuna in guide rod and guide rod seat is 0.5mm.
Compared with prior art, the structure of Double-layer elastic sealing lift valve provided by the invention is unusual, this vibrational power flow has two-layer valve plate and two-layer valve seat construction, and on two-layer valve plate, all pressing spring is set, make distance between valve plate slightly larger than the distance between valve seat simultaneously, sealing effect can be made better outstanding.
Beneficial effect of the present invention:
1. a kind of Double-layer elastic sealing lift valve provided by the invention, improves the Security of dust pelletizing system sealing, effectively can ensure the normal work of steam generator system.Because valve plate is Double-layer elastic sealing configuration form, during work, valve plate is driven to move up and down by the lifting driving device of top by promoting guide rod.When the valve is closed, double-deck valve plate moves downward simultaneously, because the distance A between valve plate is greater than the distance B between valve seat, first lower floor's valve plate contacts with lower floor valve base sealing bar, and after contact, the lower spring arrangement that compresses starts stressed, when lower pressing spring is compressed to certain stroke, upper strata valve plate contacts with the Stamping Steel Ribbon of upper strata valve seat and compresses, after contact, energizing spring device starts stressed, when impacting force is applied to certain pressure, and lifting driving device stop motion pressurize.At this moment go up lower valve plate by under the pressure of lifting driving device and the dual-pressure of upper-lower compacting spring arrangement, the Stamping Steel Ribbon close contact of valve plate and valve seat, ensure that the sealing effect of valve, and leak-down rate is 0.
2. the guide rod seat of valve body being installed, can play the effect of good guidance and location valve plate.Lifting driving device, lifting guide rod, pressing spring, double-deck valve seat, guide rod seat, double-deck valve plate, double-deck valve body are installed on same axis.
3. Double-layer elastic sealing lift valve of the present invention, by Flange joint on sack cleaner bypass wind pipeline or import and export wind pipeline, also directly can be welded on wind pipeline by the mode of welding, for adapting to the application of large-scale wind pipeline, multiple Double-layer elastic sealing lift valve can be arranged in parallel, composition combination brake switch and proporting uses.
4. promoting interporal lacuna in guide rod and guide rod seat is 0.5mm, can play accurate leading role, ensure that valve plate and valve seat contraposition accurately, is conducive to the sealing improving valve.
6. double-deck valve plate is driven by lifting driving device (electric pushrod, cylinder unit or electric actuator etc.), can ensure the quick open and close of valve plate, meet the application requirement of Double-layer elastic sealing lift valve.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Status architecture schematic diagram when Fig. 1 is the unlatching of this Double-layer elastic sealing lift valve;
Fig. 2 is status architecture schematic diagram when this Double-layer elastic sealing lift valve closes.
In figure: 1. lifting driving device, 2. promote guide rod, 3. go up pressing spring, 4. descend pressing spring, 5. upper strata valve seat, 6. lower floor's valve seat, 7. upper strata valve plate, 8. lower floor's valve plate, 9. valve body.10. guide rod seat.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As Fig. 1, shown in 2, a kind of Double-layer elastic sealing lift valve, comprise the valve body 9 that two-layer valve seat is set, valve plate, the lifting driving device 1 be connected by promoting guide rod 2 with valve plate, wherein, valve seat comprises superposed upper strata valve seat 5 and is positioned at lower floor's valve seat 6 of bottom, on upper strata valve seat 5 and lower floor's valve seat 6 all device by Stamping Steel Ribbon, the bottom of valve body 9 is provided with guide rod seat 10, valve plate comprises the upper strata valve plate 7 corresponding with upper strata valve seat 5 and the lower floor valve plate 8 corresponding with lower floor valve seat 6, the top device of described upper strata valve plate 7 has upper pressing spring 3, the top device of lower floor's valve plate 8 has lower pressing spring 4, when lower pressing spring 4 is in uncompressed or extended state, distance A between upper strata valve plate 7 and lower floor's valve plate 8 is greater than the distance B between upper strata valve seat 5 and lower floor's valve seat 6, lifting driving device 1, lifting guide rod 2, guide rod seat 10 are all on the same axis, promote on guide rod 2 and guide rod seat 10 joint is provided with O-ring seal, the quantity of sealing cushion rubber can be multiple, preferred upper strata valve plate 7 is larger than lower floor valve plate 8, and the two is circle, promoting guide rod 2 and be preferably 0.5mm with interporal lacuna in guide rod seat 10, certainly, also can be other data areas at this.
During the work of Double-layer elastic sealing lift valve, lifting driving device 1 connects lifting guide rod 2, by guide rod seat 10, promotes double-deck valve plate (upper strata valve plate 7, lower floor's valve plate 8) and moves to valve body 9, because the distance A between upper strata valve plate 7 and lower floor's valve plate 8 is greater than the distance B between upper strata valve seat 5 and lower floor's valve seat 6, first lower floor's valve plate 8 contacts with lower floor valve seat 6 and compresses, when lower pressing spring 4 is compressed to certain stroke, upper strata valve plate 7 contacts with upper strata valve seat 5 and compresses, when impacting force is applied to certain pressure, lifting driving device 1 stop motion pressurize, at this moment double sealing lift valve is closed completely, herein, the distance B that distance A between valve plate is greater than between valve seat can be interpreted as further, instantly after pressing spring 4 is compressed to certain stroke, distance A1 between valve plate now under state equals the distance between valve seat, that is to say that the decrement of lower pressing spring 4 equals the difference of the distance B between distance A between former valve plate and valve seat, this is arranged in order to ensure upper strata valve plate 7, lower floor's valve plate 8 and upper strata valve seat 5, lower floor's valve seat 6 fits tightly sealing.
The Double-layer elastic sealing lift valve down periods, main by the impacting force of lifting driving device 1 and the impacting force of upper pressing spring 3 times pressing spring 4 devices.Make double-deck valve plate and valve base sealing bar close contact, reach sealing effect.The Elastic penetration of valve base sealing bar has 2 ~ 3mm, the sealing between valve plate and valve base sealing bar can be ensured completely, general individual layer valve plate is in long pressurize seal process, due to high temperature and the change of pressure and the modification of metal heat-expansion shrinkage, trace variation can be produced between valve plate and valve body, variation once exceeded the Elastic penetration of Stamping Steel Ribbon, or lifting driving device to some extent slow-action when, valve body just likely produces leakage.The feature of this Double-layer elastic sealing lift valve is: upper strata valve plate 7, lower floor's valve plate 8 leans on pressure and the upper pressing spring 3 of lifting driving device 1, the impacting force of lower pressing spring 4 device makes double-deck valve plate and double-deck valve seat Stamping Steel Ribbon close contact seal, the compression stroke of holddown spring is 25mm, can to compensate the slow-action amount of amount of deformation that steel structure at high temperature produces and lifting driving device, upper and lower layers valve plate produces when being out of shape or has and can be able to leak under steel structure high temperature, as long as but the slow-action amount of variation between valve plate and valve body or lifting driving device 1, in the stroke of pressing spring, the active force of the pressured tight spring arrangement of upper and lower layers valve plate can all the time with valve base sealing bar close contact, valve body 9 just can not leak, ensure that the sealing effect of valve body 9 can realize the technical order of " leak-down rate 0 ".
This device also cocoa, in conjunction with real work situation, when valve body stimulates the menstrual flow certain, adopts the mode of multiple Double-layer elastic sealing lift valve parallel connection, and composition Assembled two-layer elastic packing poppet valve, increases air-flow by area, be conducive to standardized production needs.
Be understandable that, above about specific descriptions of the present invention, the technological scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.
Claims (5)
1. a Double-layer elastic sealing lift valve, comprise the valve body (9) that two-layer valve seat is set, valve plate, the lifting driving device (1) be connected by promoting guide rod (2) with valve plate, wherein, valve seat comprises superposed upper strata valve seat (5) and is positioned at lower floor's valve seat (6) of bottom, upper strata valve seat (5) and the upper equal device of lower floor's valve seat (6) are by Stamping Steel Ribbon, the bottom of valve body (9) is provided with guide rod seat (10), valve plate comprises the upper strata valve plate (7) corresponding with upper strata valve seat (5) and the lower floor valve plate (8) corresponding with lower floor's valve seat (6), it is characterized in that: the top device on described upper strata valve plate (7) has upper pressing spring (3), the top device of lower floor's valve plate (8) has lower pressing spring (4), when lower pressing spring (4) is in uncompressed or extended state, distance A between upper strata valve plate (7) and lower floor's valve plate (8) is greater than the distance B between upper strata valve seat (5) and lower floor's valve seat (6).
2. a kind of Double-layer elastic sealing lift valve according to claim 1, is characterized in that: described lifting driving device (1), lifting guide rod (2), guide rod seat (10) are all on the same axis.
3. a kind of Double-layer elastic sealing lift valve according to claim 1, is characterized in that: on described lifting guide rod (2) and guide rod seat (10) joint is provided with O-ring seal.
4. a kind of Double-layer elastic sealing lift valve according to claim 1, is characterized in that: described upper strata valve plate (7) is larger than lower floor valve plate (8), and the two is circle.
5. a kind of Double-layer elastic sealing lift valve according to claim 1, is characterized in that: described lifting guide rod (2) and guide rod seat (10) interior interporal lacuna are 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510926821.2A CN105402421A (en) | 2015-12-15 | 2015-12-15 | Double-layer elastically sealing lift valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510926821.2A CN105402421A (en) | 2015-12-15 | 2015-12-15 | Double-layer elastically sealing lift valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402421A true CN105402421A (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510926821.2A Pending CN105402421A (en) | 2015-12-15 | 2015-12-15 | Double-layer elastically sealing lift valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402421A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084251A (en) * | 2017-05-17 | 2017-08-22 | 中冶节能环保有限责任公司 | A kind of double-layer seal by-passing valve with gas check |
| WO2020134562A1 (en) * | 2018-12-28 | 2020-07-02 | 苏州协昌环保科技股份有限公司 | Gas-electric conversion lifting valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2725648Y (en) * | 2004-08-18 | 2005-09-14 | 吴江宝带除尘有限公司 | Pressure type non-leakage valve |
| CN2906226Y (en) * | 2006-04-19 | 2007-05-30 | 黄依华 | Leakproof valve structure |
| CN101818810A (en) * | 2010-01-25 | 2010-09-01 | 江苏新中环保股份有限公司 | Double sealing lift valve used in pipeline of dust collector |
| CN104132146A (en) * | 2014-07-10 | 2014-11-05 | 北京赫宸环境工程股份有限公司 | Double-layer sealing type lift valve |
| CN205350368U (en) * | 2015-12-15 | 2016-06-29 | 北京赫宸环境工程股份有限公司 | Sealed poppet valve of double -deck elasticity |
-
2015
- 2015-12-15 CN CN201510926821.2A patent/CN105402421A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2725648Y (en) * | 2004-08-18 | 2005-09-14 | 吴江宝带除尘有限公司 | Pressure type non-leakage valve |
| CN2906226Y (en) * | 2006-04-19 | 2007-05-30 | 黄依华 | Leakproof valve structure |
| CN101818810A (en) * | 2010-01-25 | 2010-09-01 | 江苏新中环保股份有限公司 | Double sealing lift valve used in pipeline of dust collector |
| CN104132146A (en) * | 2014-07-10 | 2014-11-05 | 北京赫宸环境工程股份有限公司 | Double-layer sealing type lift valve |
| CN205350368U (en) * | 2015-12-15 | 2016-06-29 | 北京赫宸环境工程股份有限公司 | Sealed poppet valve of double -deck elasticity |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084251A (en) * | 2017-05-17 | 2017-08-22 | 中冶节能环保有限责任公司 | A kind of double-layer seal by-passing valve with gas check |
| WO2020134562A1 (en) * | 2018-12-28 | 2020-07-02 | 苏州协昌环保科技股份有限公司 | Gas-electric conversion lifting valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |