CN203926861U - Multi-level soft sealing gate valve - Google Patents
Multi-level soft sealing gate valve Download PDFInfo
- Publication number
- CN203926861U CN203926861U CN201420343107.1U CN201420343107U CN203926861U CN 203926861 U CN203926861 U CN 203926861U CN 201420343107 U CN201420343107 U CN 201420343107U CN 203926861 U CN203926861 U CN 203926861U
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- Prior art keywords
- gate valve
- shape circle
- cylinder
- shape
- soft sealing
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Abstract
The utility model relates to a kind of multi-level soft sealing gate valve, on the upper-end surface of multi-level soft sealing gate valve C shape circle and/or lower end surface, connecting plate upper-end surface and/or lower end surface, cylinder bottom, cylindrical and/or lower cylindrical are provided with at least one circle protrusion, between protruding and protruding, be connected, form the ring of a sealing, protrude the closed loop and the gate valve cross section adaptation that form, the utility model can use the equipment of gate valve to realize zero leakage, increases the working life of gate valve.
Description
Technical field
The utility model relates to a kind of multi-level soft sealing gate valve.
Background technique
Soft sealing gate valve purposes is more extensive, adopts without curved cavity valve body valve gap inner and outer surface spray epoxy, gate valve surface is rubber-coated, so fundamentally stopped the possibility that corrosion occurs, valve stem seal place gives up filler and adopts " O " RunddichtringO, makes sealing more reliable.As required, this gate valve can adopt the modes of operation such as operating stem, handwheel, electronic and startup.In the existing several large advantages of hard seal gate valve: 1. sealability is strong; 2. working life is longer.Then still there are some problems in existing soft sealing gate valve, although be that requirement reaches zero leakage in NBS, but in normal use, cannot accomplish in most cases zero leakage completely, owing to producing extruding and form seal ring closing rubber flashboard and valve body, therefore all can there is certain leakage rate, and because flashboard is thicker, the pressure needing act on valve seals in the time closing time is larger, thereby the torsional moment while making to rotate valve shaft is larger, not too convenient in the time of switch, if the material of valve plate just may cause secondary pollution when valve plate needs out of joint are changed or keeped in repair simultaneously, and can cause be affected working life.
Model utility content
Technical problem to be solved in the utility model is that the leakage, the torsional moment that solve conventional softer seal gate valve are large, secondary pollution, working life short problem.
The technological scheme that realizes above-mentioned purpose is as follows:
Multi-level soft sealing gate valve, described gate valve comprises that a cross section is the C shape circle of C shape, one cylinder with through hole, the middle part of C shape circle has a plate, plate is divided equally the height of C shape circle, cylinder passes from C shape circle opening, the top of cylinder is crossing with C shape circle, the bottom of C shape circle opening is longer than in the bottom of cylinder, cylinder top and C shape circle intersection cylinder enclose lower than C shape, between C shape circle opening and cylinder bottom, be connected by connecting plate, connecting plate is also lower than C shape circle opening end, form the linkage structure of step type, in the middle of C shape circle end face, enclose opening to C shape and be the inclined-plane successively decreasing gradually, it is characterized in that: in upper-end surface and/or the lower end surface of C shape circle, connecting plate upper-end surface and/or lower end surface, on cylinder bottom, cylindrical and/or lower cylindrical are provided with at least one circle protrusion, between protruding and protruding, be connected, form the ring of a sealing, protrude the closed loop and the gate valve cross section adaptation that form.
Preferably, the closed loop that described protrusion forms is provided with two circles or three circles, the arrangement at parallel between closed loop, interval.
Preferably, the closed loop height that protrusion forms is identical.
Preferably, protrude the closed loop height forming and enclose from C shape the structure that outer ring to inner ring tapers off gradually.
Preferably, protrude the closed loop height forming and be gradually from C shape circle outer ring the structure increasing progressively to inner ring.
Preferably, described gate valve adopts rubber or plastic production.
The utility model can be realized real zero leakage.
Brief description of the drawings
Fig. 1 is the schematic diagram of gate valve while being applied on equipment
Fig. 2 is the sectional view of Fig. 1
Fig. 3 is traditional soft sealing gate valve schematic perspective view
Fig. 4 is the schematic diagram while having a circle protrusion on multi-level soft sealing gate valve end face
Fig. 5 is a kind of schematic diagram protruding while forming complete closure ring wherein
Fig. 6 is the schematic diagram while protruding for complete closure ring
Fig. 7 is when the schematic diagram protruding while being two circles
Fig. 8 is multi-level soft sealing gate valve bottom section schematic diagram
Figure number explanation: valve body 1, valve gap 2, gate valve 3, valve rod 4, handwheel 5, C shape circle 6, cylinder 7, plate 8, connecting plate 9, protrusion 10
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
Soft sealing gate valve is applicable to the industries such as potable water, plumbing, sewage treatment, rock gas, coal gas, industry and food, and along with the enhancing of people's environmental consciousness and the consideration to self health, particularly the pollution problem of water resources more and more becomes the focus that people pay close attention to, and soft sealing gate valve has played crucial effect.The present invention is on the basis of traditional soft sealing gate valve, realizes Multi-layer sealing, with the shortcoming that solves some unsolved difficult problems of conventional softer seal gate valve and use.
Fig. 1, Fig. 2 are that gate valve is applied in the schematic diagram on equipment, parts and the linkage structure thereof of this equipment under the explanation of cardinal principle now, this equipment comprises valve body 1, valve gap 2, valve gap 2 is arranged on valve body 1, gate valve 3 is set in valve body, gate valve 3 is the abbreviation of multi-level soft sealing gate valve, and valve rod 4 is through valve gap and gate valve, and the upper end of valve rod connects handwheel.
The structure of lower traditional soft sealing gate valve below makes brief of the introduction, conventional softer seal gate valve comprises that a cross section is the C shape circle 6 of C shape, one cylinder 7 with through hole, the middle part of C shape circle 6 has a plate 8, plate 8 is divided equally the height of C shape circle 6, passing from C shape circle opening of cylinder 7 adaptations, the top of cylinder is crossing with C shape circle, wherein C shape circle 6 is separated into symmetrical two halves by cylinder 7, the bottom of C shape circle opening is longer than in the bottom of cylinder, cylinder top and C shape circle intersection cylinder enclose lower than C shape, between C shape circle and cylinder bottom, be connected by connecting plate 9, it is the cuboid of rectangle that connecting plate 9 adopts cross section, connecting plate 9 is also lower than C shape circle opening end, form the linkage structure of step type, in the middle of C shape circle end face, enclose opening to C shape and be the inclined-plane successively decreasing gradually.The upper and lower end face of traditional soft sealing gate valve is equivalent to seal ring.
Inventive point of the present invention is that end face arranges protrusion 10 above and/or under gate valve, protrude the 10 concrete upper-end surface and/or the lower end surfaces that are arranged on C shape circle, connecting plate upper-end surface and/or lower end surface, cylindrical and/or lower cylindrical on cylinder bottom, between protruding and protruding, be connected, form the ring of a sealing, protrude the closed loop and the gate valve cross section adaptation (protruding in other words the closed loop and the gate valve end surface adaptation that form) that form, that is to say on positive and negative two end faces of gate valve protrusion can be set, can certainly only be arranged on an end face, protrusion has served as the effect of seal ring, in the present invention, protrude and be at least a circle, preferably protrude 10 closed loops that form and be provided with two circles or three circles, protrude at C shape circle end face, connecting plate end face, on cylinder cylindrical, be arranged in order, the protrusion of each circle sealing is parallel, the arrangement at interval, protrusion can be any shape, the height protruding can be identical, also can be to start from C shape circle inner ring the order arrangement that tapers off gradually or increase progressively to C shape circle outer ring protrusion height.Protrude the closed loop forming and be equivalent to seal ring, utilize the leakage of the closed loop prevention medium of each circle, and multi-level closed loop has also just formed multi-level sealing.
The maximum differential of the present invention and original technology has been multi-layer sealed circle, original soft sealing gate valve only has one deck conventional seals circle (end face that is original soft sealing gate valve has served as seal ring), all can there is in most cases micro-leakage, the linear increase of leakage rate and caliber size.Multi-layer sealing ring gate valve seals layer by layer at its right and left increase by one circle or two circle seal rings (words of conditions permit can be more), makes it to reach better effect.
In the time of closing gate valve, if first layer seal ring still can produce a small amount of leakage, leadage coefficient is basic identical with original traditional common single seal ring, at this moment a small amount of medium leaking out can be between first layer and second layer seal ring, if the leakage rate of first layer is little, the medium amount entering between first layer and the second layer will be very little, so just can not continue to leak; And if amount is when relatively large, can continue down one deck to leak, at this moment have more micro-medium between the second layer and the 3rd layer, by that analogy, the method for successively decreasing with this kind makes leakage rate reduce to minimum.This minimizing reduces with geometrical factor, to finally almost negligible, to realize real zero leakage.
When protruding the number of turns that the closed loop that forms arranges when many, can by traditional soft sealing gate valve wherein the height of one side or entirety reduce, closed loop is set so again, whole height of the present invention can be too not thick.
Traditional common individual layer seal ring, seal ring is thicker, in the time that valve plate is closed, larger could the closing completely of torque ratio needing, and the thickness summation of all seal rings of multi-layer sealing ring is less than original traditional individual layer seal ring, will make multi-level each seal ring suffered pressure in the time closing be less than individual layer seal ring, therefore needed moment is relatively little, uses more for convenience.The present invention and original product mounting type or consistent, the thickness of its product can reduce according to actual conditions.
Traditional individual layer seal ring is if there is damage, its material may cause secondary pollution to medium so, and can make system normally use, if and use multi-layer sealing ring, in the time that certain one deck seal ring damages, impact on whole system is very little, still can normally use, and the seal ring of this damage is changed just passable.
These are only the utility model embodiment's preferred embodiment; not in order to limit the utility model embodiment; all within the utility model embodiment's spirit and principle; any amendment of doing, be equal to replacement, improvement etc., all should be included in the utility model embodiment's protection domain.
Claims (6)
1. multi-level soft sealing gate valve, described gate valve comprises that a cross section is the C shape circle of C shape, one cylinder with through hole, the middle part of C shape circle has a plate, plate is divided equally the height of C shape circle, cylinder passes from C shape circle opening, the top of cylinder is crossing with C shape circle, the bottom of C shape circle opening is longer than in the bottom of cylinder, cylinder top and C shape circle intersection cylinder enclose lower than C shape, between C shape circle opening and cylinder bottom, be connected by connecting plate, connecting plate is also lower than C shape circle opening end, form the linkage structure of step type, in the middle of C shape circle end face, enclose opening to C shape and be the inclined-plane successively decreasing gradually, it is characterized in that: in upper-end surface and/or the lower end surface of C shape circle, connecting plate upper-end surface and/or lower end surface, on cylinder bottom, cylindrical and/or lower cylindrical are provided with at least one circle protrusion, between protruding and protruding, be connected, form the ring of a sealing, protrude the closed loop and the gate valve cross section adaptation that form.
2. multi-level soft sealing gate valve according to claim 1, is characterized in that: the closed loop that described protrusion forms is provided with two circles or three circles, the arrangement at parallel between closed loop, interval.
3. multi-level soft sealing gate valve according to claim 2, is characterized in that: protrude the closed loop height forming identical.
4. multi-level soft sealing gate valve according to claim 2, is characterized in that: protrude the closed loop height forming and enclose from C shape the structure that outer ring to inner ring tapers off gradually.
5. multi-level soft sealing gate valve according to claim 2, is characterized in that: protrude the closed loop height forming and be gradually from C shape circle outer ring the structure increasing progressively to inner ring.
6. multi-level soft sealing gate valve according to claim 1, is characterized in that: described gate valve adopts rubber or plastic production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420343107.1U CN203926861U (en) | 2014-06-24 | 2014-06-24 | Multi-level soft sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420343107.1U CN203926861U (en) | 2014-06-24 | 2014-06-24 | Multi-level soft sealing gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926861U true CN203926861U (en) | 2014-11-05 |
Family
ID=51822673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420343107.1U Expired - Fee Related CN203926861U (en) | 2014-06-24 | 2014-06-24 | Multi-level soft sealing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402460A (en) * | 2015-12-14 | 2016-03-16 | 天津市弘一阀门有限公司 | Soft seal trench sluice valve and installation method |
-
2014
- 2014-06-24 CN CN201420343107.1U patent/CN203926861U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402460A (en) * | 2015-12-14 | 2016-03-16 | 天津市弘一阀门有限公司 | Soft seal trench sluice valve and installation method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20190624 |