CN103644366A - Novel water-hammer-prevention coaxial valve - Google Patents
Novel water-hammer-prevention coaxial valve Download PDFInfo
- Publication number
- CN103644366A CN103644366A CN201310602551.0A CN201310602551A CN103644366A CN 103644366 A CN103644366 A CN 103644366A CN 201310602551 A CN201310602551 A CN 201310602551A CN 103644366 A CN103644366 A CN 103644366A
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- Prior art keywords
- piston
- hammer
- piston rod
- rod assembly
- support ring
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a novel water-hammer-prevention coaxial valve. The novel water-hammer-prevention coaxial valve comprises a valve body, the inside of the valve body is provided with a piston and piston rod assembly, the piston and piston rod assembly is provided with an inner through hole, mediums flow from one end of the inner through hole, the other end of the inner through hole is provided with a seal assembly, the seal assembly and the piston and piston rod assembly are coaxially arranged, and the seal assembly is composed of a sealing gasket, a supporting ring and a spring. The novel water-hammer-prevention coaxial valve has the advantages that due to a zero pressure difference type design, the novel water-hammer-prevention coaxial valve can bear high pressure; due to the fact that the primary sealing mode is linear sealing, impurity resistance can be achieved; due to a coaxial design, novel water-hammer-prevention coaxial valve is small in the contour dimension and cannot occupy relatively large space during installation.
Description
Technical field
The present invention relates to valve technology field, be specifically related to a kind of new waterproof hammer coaxial valve.
Background technique
" water hammer effect " refers at water pipe inner, and inner tube wall is smooth, and water flow freely.When the valve of opening is closed suddenly, current, to valve and tube wall, are mainly that valve can produce a pressure.Because tube wall is smooth, follow-up current, under the effect of inertia, reach rapidly maximum, and produce destruction, " water hammer effect " in the middle of Here it is hydro science, namely positive water hammer.In water pipeline construction, all to consider this factor.On the contrary, the valve of closing, after throwing open, also can produce water hammer, is negative water hammer, also has certain collapsing force, but large less than the former.
There is following shortcoming in the existing valve addressing the above problem: 1. function singleness: can only realize water hammer-resistant effect, there is no switch valve function; 2. requirements of installation space is large; 3. not high pressure resistant: above product pressure is all below 3MPa; 4. not resistance to impurity: water shock absorber and water hammer eliminating valve can damage very soon when conveying has the medium of impurity.
Summary of the invention
The object of the invention is to defect and deficiency for prior art, a kind of new waterproof hammer coaxial valve is provided.
For achieving the above object, the technical solution used in the present invention is:
A kind of new waterproof hammer coaxial valve of the present invention, comprise valve body, in valve body, be provided with piston, piston rod assembly, described piston, piston rod assembly are provided with inner via hole, medium flows into from one end of inner via hole, the other end of inner via hole is provided with black box, and described black box and piston, piston rod assembly coaxially arrange, and black box is comprised of sealing gasket, support ring and spring.
As preferably, described spring one end is arranged in valve body inner chamber groove, and one end is connected with support ring, and the other end center of support ring is provided with interior threaded hole, and sealing gasket is fixed on support ring by screw rod, is also provided with medium through hole on support ring.
As preferably, described spring is butterfly spring.
As preferably, described spring is heavy-duty springs.
As preferably, described piston, piston rod assembly are by compressed air-driven.
Adopt after said structure, beneficial effect of the present invention is: owing to adopting the design of zero pressure difference formula, therefore can bear high pressure; Because primary seal is linear sealing, therefore can resistance to impurity; Owing to adopting coaxial-type design, therefore boundary dimension is little, during installation, do not take larger space.
Accompanying drawing explanation
In order to be illustrated more clearly in technological scheme of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that the present invention opens shape body structure schematic diagram;
Fig. 2 is closed condition structural representation of the present invention.
In figure: 1, valve body, 2, piston, piston rod assembly, 3, inner via hole, 4, sealing gasket, 5, support ring, 6, spring, 7, medium through hole.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As Fig. 1, shown in Fig. 2, a kind of new waterproof hammer coaxial valve, comprise valve body 1, in valve body 1, be provided with piston, piston rod assembly 3, described piston, piston rod assembly 3 is provided with inner via hole 4, medium flows into from one end of inner via hole 3, the other end of inner via hole is provided with black box, described black box and piston, piston rod assembly 2 coaxially arranges, black box 2 is by sealing gasket 4, support ring 5 and spring 6 form, spring 6 one end are arranged in valve body 1 inner chamber groove, one end is connected with support ring 5, the other end of support ring 5 is provided with interior threaded hole by center, sealing gasket 4 is fixed on support ring 5 by screw rod, on support ring 7, be also provided with medium through hole 7, spring 6 can be butterfly spring, also can be heavy-duty springs, piston, piston rod assembly 2 is by compressed air-driven.
As shown in Figure 1, when the present invention is during in open mode, medium is flowed into by left end, the inner via hole 3 of process piston, piston rod assembly 2 and sealing gasket 4, support ring 5 assemblies are flowed out by right-hand member, the commutation of valve is realized by compressed air-driven piston, piston rod assembly 2, primary seal is realized by piston rod and sealing gasket 4, support ring 5 assemblies, owing to adopting the design of zero pressure difference formula, therefore can bear high pressure; Because primary seal is linear sealing, therefore can resistance to impurity.Owing to adopting coaxial-type design, therefore boundary dimension is little, during installation, do not take larger space.
As shown in Figure 2, when the present invention is during in closed condition, due to closing velocity be exceedingly fast (50ms), medium in piston rod inside and left end pipeline is because inertia is to sealing gasket 4, it is water hammer effect that support ring 5 assemblies produce larger impact, sealing gasket 4, support ring 5 assemblies butterfly spring is below by compressed, sealing gasket 4, support ring 5 assemblies will move right under the effect of water hammer, at this moment piston rod and sealing gasket are thrown off, form a less gap, the pressure off-load that forms water hammer is fallen, because pressure medium after pressure release reduces, support ring 5 will be moved to the left under the effect of butterfly spring in the back, again contact with piston rod, medium-tight is lived, thereby realized the effect of water hammer-resistant.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (5)
1. a new waterproof is hammered coaxial valve into shape, comprise valve body (1), in valve body (1), be provided with piston, piston rod assembly (2), it is characterized in that: described piston, piston rod assembly (2) are provided with inner via hole (3), medium flows into from one end of inner via hole (3), the other end of inner via hole (3) is provided with black box, and described black box and piston, piston rod assembly (2) coaxially arrange, and black box is comprised of sealing gasket (4), support ring (5) and spring (6).
2. a kind of new waterproof according to claim 1 is hammered coaxial valve into shape, it is characterized in that: described spring (6) one end is arranged in valve body (1) inner chamber groove, one end is connected with support ring (5), the other end center of support ring (5) is provided with interior threaded hole, it is upper that sealing gasket (4) is fixed on support ring (5) by screw rod, is also provided with medium through hole (7) on support ring (5).
3. a kind of new waterproof hammer coaxial valve according to claim 1, is characterized in that: described spring (6) is butterfly spring.
4. a kind of new waterproof hammer coaxial valve according to claim 1, is characterized in that: described spring (6) is heavy-duty springs.
5. a kind of new waterproof hammer coaxial valve according to claim 1, is characterized in that: described piston, piston rod assembly (2) are by compressed air-driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602551.0A CN103644366A (en) | 2013-11-25 | 2013-11-25 | Novel water-hammer-prevention coaxial valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602551.0A CN103644366A (en) | 2013-11-25 | 2013-11-25 | Novel water-hammer-prevention coaxial valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103644366A true CN103644366A (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310602551.0A Pending CN103644366A (en) | 2013-11-25 | 2013-11-25 | Novel water-hammer-prevention coaxial valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN103644366A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084276A (en) * | 2017-06-26 | 2017-08-22 | 南通虹登机械设备有限公司 | A kind of piston type vacuum coaxial valve using vacuum as power gas source |
| CN109140029A (en) * | 2018-10-30 | 2019-01-04 | 大连元利流体技术有限公司 | Gas control coaxial valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE896745C (en) * | 1949-01-01 | 1953-06-06 | Vaillant Joh Kg | Throttle valve for liquids, especially nozzle for gas water heaters |
| CN201310636Y (en) * | 2008-11-19 | 2009-09-16 | 张文利 | Air shuttle valve |
| CN102042432A (en) * | 2010-12-10 | 2011-05-04 | 北京工业大学 | Direct-acting water pressure overflow valve with damping piston |
| CN202501078U (en) * | 2012-03-08 | 2012-10-24 | 大连元利流体技术有限公司 | Pneumatic coaxial valve |
| CN203202313U (en) * | 2013-04-25 | 2013-09-18 | 浙江工贸职业技术学院 | One-way valve with water attack prevention function |
| CN203549097U (en) * | 2013-11-26 | 2014-04-16 | 孙伟 | Novel waterproof hammer coaxial valve |
-
2013
- 2013-11-25 CN CN201310602551.0A patent/CN103644366A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE896745C (en) * | 1949-01-01 | 1953-06-06 | Vaillant Joh Kg | Throttle valve for liquids, especially nozzle for gas water heaters |
| CN201310636Y (en) * | 2008-11-19 | 2009-09-16 | 张文利 | Air shuttle valve |
| CN102042432A (en) * | 2010-12-10 | 2011-05-04 | 北京工业大学 | Direct-acting water pressure overflow valve with damping piston |
| CN202501078U (en) * | 2012-03-08 | 2012-10-24 | 大连元利流体技术有限公司 | Pneumatic coaxial valve |
| CN203202313U (en) * | 2013-04-25 | 2013-09-18 | 浙江工贸职业技术学院 | One-way valve with water attack prevention function |
| CN203549097U (en) * | 2013-11-26 | 2014-04-16 | 孙伟 | Novel waterproof hammer coaxial valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084276A (en) * | 2017-06-26 | 2017-08-22 | 南通虹登机械设备有限公司 | A kind of piston type vacuum coaxial valve using vacuum as power gas source |
| CN109140029A (en) * | 2018-10-30 | 2019-01-04 | 大连元利流体技术有限公司 | Gas control coaxial valve |
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Application publication date: 20140319 |