CN1089876C - Dual-axle hydraulic butterfly check valve closed slowly - Google Patents
Dual-axle hydraulic butterfly check valve closed slowly Download PDFInfo
- Publication number
- CN1089876C CN1089876C CN98113567A CN98113567A CN1089876C CN 1089876 C CN1089876 C CN 1089876C CN 98113567 A CN98113567 A CN 98113567A CN 98113567 A CN98113567 A CN 98113567A CN 1089876 C CN1089876 C CN 1089876C
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- valve body
- oil
- check valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
-
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/223—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Lift Valve (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The present invention relates to a double-axle hydraulic slow-close butterfly check valve which comprises a valve body, two folding valve plates and a hydraulic slow-closing mechanism, wherein the two folding valve plates are arranged in a flow channel of the valve body through pivot shafts; the hydraulic slow-closing mechanism has a damping effect on the closing of the folding type valve plates; two pivot shafts are respectively combined with the corresponding folding valve plates through connecting pieces; and two hydraulic cylinders in the hydraulic slow-close mechanism positioned above the valve body are respectively combined with the two pivot shafts through a rocking arm. The double-axle hydraulic slow-close butterfly check valve has the advantages that closing speed can be accurately and visually known, adjusted and maintained in time, and the problems of intense impact generated on turning off transient and water pollution problem caused by oil cylinder leakage are fundamentally solved.
Description
The present invention relates to a kind of safety check, relate to a kind of dual-axle hydraulic butterfly check valve closed slowly specifically.
Chinese patent 93206173.7 discloses a kind of name and has been called " butterfly check valve closed slowly ", and this safety check installs the hydraulic pressure slow closing device additional and forms on traditional basis.It mainly comprises valve body, by pivot and spring be installed in the valve flowing channel about two valve plates, and be positioned at two hydraulic pressure slow closing devices on the one side runner inwall of medium inlet, described two hydraulic pressure slow closing devices respectively with about the outward edge of two valve plates corresponding; The hydraulic pressure slow closing device comprises barrier film, oil sump, unidirectional series flow control valve and hydraulic jack composition, its septation communicates with the medium inlet of valve body, oil sump is between barrier film and unidirectional series flow control valve, unidirectional series flow control valve communicates with hydraulic jack by pipeline, and piston does not have certain clearance before stretching out and between the valve plate of operating position.
Though above-mentioned butterfly check valve closed slowly compared with prior art, when closing unlike traditional butterfly check valve rapid closing, but realize Slow Close by the control of hydraulic pressure slow closing device, thereby reach effectively avoid because of valve plate close produce rapidly pipeline is had " water hammer " effect of broken ring effect, guarantee the purpose of pipe safety.But also expose the some shortcomings part: 1. because this valve adopts membrane configuration to control the operation of hydraulic mechanism as pressure control valve by use in recent years, this is just strict especially to the quality requirement of barrier film, because the material of current material is limit, often cause the inefficacy of slow closing device in actual use because of breaking of barrier film; 2. owing to two oil hydraulic cylinders that play the Slow Close effect all are arranged in the runner of valve body, will certainly have influence on Flow area, increase flow resistance, also can cause the pollution that is transferred medium simultaneously because of the leakage of hydraulic oil; 3. owing to all being closed in the runner after the two oil hydraulic cylinders installation that plays the Slow Close effect, whether the work that therefore can't observe directly slow closing device is normal, and whether oil cylinder exists phenomena of the failure such as leakage, and maintenance timely also just can't be provided; There is certain distance (contactless state) when 4. opening owing to valve plate in addition and between the front end of hydraulic cylinder piston, therefore can sends bigger impulsive sound, particularly when pressure of return water is big, the possibility of the parts damages of causing is arranged at turn-off transient.
Purpose of the present invention provides a kind of dual-axle hydraulic butterfly check valve closed slowly with regard to being to overcome deficiency of the prior art.
Purpose of the present invention can adopt following measure to realize:
Dual-axle hydraulic slow closed check damper of the present invention comprises valve body, by two vertically be provided be pivotally mounted in two doubling formula valve plates in the valve flowing channel, and the hydraulic pressure Slow Close mechanism that can play damping function to closing of valve plate, described doubling formula valve plate by link respectively and pivot corresponding with it combine, two oil hydraulic cylinders that are arranged in the hydraulic pressure Slow Close mechanism of valve body top combine with two pivots by rocking arm respectively.
Hydraulic pressure Slow Close mechanism described in the present invention is made up of the unidirectional series flow control valve that is installed in two oil hydraulic cylinders in the square box on the valve body by articulated manner, is positioned at the oil sump on the casing and is used to be communicated with oil sump and oil hydraulic cylinder.
Because the present invention adopts hydraulic pressure Slow Close mechanism outlet structure, and the technical characteristics of its two oil hydraulic cylinder (actuator) by combining with two pivots respectively with rocking arm that its piston rod front end combines, thereby not only realized judging accurately, intuitively valve plate unlatching present position, learn flow coefficient, and can observe at any time to understand and close fast, slow process, so that in time closing velocity is effectively regulated, also be simultaneously the maintenance of the hydraulic pressure Slow Close mechanism condition of providing convenience by unidirectional series flow control valve; In addition, because valve plate is to promote the Slow Close process that hydraulic cylinder piston moves and realizes valve plate by the pivot that is fixed together with it with the affixed rocking arm of pivot, this has also just fundamentally overcome the deficiency that existing turn-off transient in the prior art produces intense impact; Moreover the external water pollution problems that causes because of the oil cylinder leakage that also fundamentally solved of oil hydraulic cylinder.
The drawing of accompanying drawing is described as follows:
Fig. 1 is a plan view of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is that B after the hydraulic pressure Slow Close mechanism that omits among Fig. 1 is to view.
The present invention does with detailed description below with reference to embodiment's (accompanying drawing):
As shown in Figure 1, 2, 3, dual-axle hydraulic butterfly check valve closed slowly of the present invention comprises valve body (4) and is installed in certainly doubling formula valve plate (6) of two in the valve flowing channel by two pivots (5) that vertically pass the valve flowing channel setting that described two valve plates (6) all combine with the pivot (5) of the corresponding edge that sets within it respectively by affixed mode; The hydraulic pressure Slow Close mechanism that is arranged in valve body top by two oil hydraulic cylinders (7) that are installed in square box on the valve body by articulated manner, be positioned at the oil sump (1) on the casing and the unidirectional series flow control valve (3) that is connected with oil sump (1) is formed, two pipe joints (2) that unidirectional series flow control valve (3) go up to be provided with are connected (having omitted transport pipe among the figure) with the pipe joint (8) of oil hydraulic cylinder afterbody by transport pipe respectively, and described two oil hydraulic cylinders (7) are respectively by being fixed together with hinged rocking arm (9) and two pivots (5) upper end portion of its piston (10) front end.
Working principle of the present invention is as follows:
When water pump is started shooting, two doubling formula valve plates mode with doubling under the effect that is transferred medium is opened, meanwhile, two pivots drive rocking arm and rotate under the effect of valve plate, piston in the oil hydraulic cylinder is overhanging under the drive of rocking arm, and by being connected liquid-transport pipe-line between oil hydraulic cylinder and the unidirectional series flow control valve with in the quick inhalant liquid cylinder pressure of the hydraulic oil in the oil sump.When closing pump, will self-return at the effect lower valve plate of pressure of return water, damping function by two oil hydraulic cylinders in the return process (at this moment, two pivots drive the rocking arm backward rotation under the effect of valve plate, piston in the oil hydraulic cylinder bounces back under the drive of rocking arm, and by the liquid-transport pipe-line that is connected between oil hydraulic cylinder and the unidirectional series flow control valve hydraulic oil in the oil hydraulic cylinder is flow back in the oil sump lentamente) Slow Close of realization valve plate.The valve plate closing velocity soon, can finish by the adjusting of unidirectional series flow control valve slowly.
Claims (2)
1, a kind of dual-axle hydraulic butterfly check valve closed slowly, it comprises valve body (4), be installed in certainly doubling formula valve plate (6) of two in the valve flowing channel by two pivots (5) that vertically are provided with, and the hydraulic pressure Slow Close mechanism that can play damping function to closing of valve plate, described doubling formula valve plate (6) by link respectively and pivot corresponding (5) with it combine, it is characterized in that: two oil hydraulic cylinders (7) that are arranged in the hydraulic pressure Slow Close mechanism of valve body top combine with two pivots (5) by rocking arm (9) respectively.
2, dual-axle hydraulic butterfly check valve closed slowly according to claim 1 is characterized in that: described hydraulic pressure Slow Close mechanism is made up of the unidirectional series flow control valve (3) that is installed in two oil hydraulic cylinders (7) in the square box on the valve body by articulated manner, is positioned at the oil sump (1) of casing top and is used to be communicated with oil sump (1) and oil hydraulic cylinder (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113567A CN1089876C (en) | 1998-05-22 | 1998-05-22 | Dual-axle hydraulic butterfly check valve closed slowly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113567A CN1089876C (en) | 1998-05-22 | 1998-05-22 | Dual-axle hydraulic butterfly check valve closed slowly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1236871A CN1236871A (en) | 1999-12-01 |
| CN1089876C true CN1089876C (en) | 2002-08-28 |
Family
ID=5223283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98113567A Expired - Fee Related CN1089876C (en) | 1998-05-22 | 1998-05-22 | Dual-axle hydraulic butterfly check valve closed slowly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1089876C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381733C (en) * | 2005-10-02 | 2008-04-16 | 王永泽 | Folded plate valve |
| DE102015009083A1 (en) * | 2015-07-17 | 2017-01-19 | Atec Pharmatechnik Gmbh | Treatment and / or transport container with a flap valve and method for emptying such a treatment and / or transport container |
| CN115306906B (en) * | 2022-07-20 | 2024-10-29 | 博雷（中国）控制系统有限公司 | Butterfly valve with built-in vibration-free damping mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4607661A (en) * | 1984-05-12 | 1986-08-26 | Gestra Aktiengesellschaft | Check value |
| CN2149532Y (en) * | 1993-03-05 | 1993-12-15 | 郑州蝶阀厂 | Slow-stop butterfly check valve |
| US5674125A (en) * | 1995-01-24 | 1997-10-07 | American Standard Inc. | Fresh air flow modulation device |
| CN2339817Y (en) * | 1998-05-22 | 1999-09-22 | 王陆军 | Double-axle hydraulic slow-closing butterfly type check valve |
-
1998
- 1998-05-22 CN CN98113567A patent/CN1089876C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4607661A (en) * | 1984-05-12 | 1986-08-26 | Gestra Aktiengesellschaft | Check value |
| CN2149532Y (en) * | 1993-03-05 | 1993-12-15 | 郑州蝶阀厂 | Slow-stop butterfly check valve |
| US5674125A (en) * | 1995-01-24 | 1997-10-07 | American Standard Inc. | Fresh air flow modulation device |
| CN2339817Y (en) * | 1998-05-22 | 1999-09-22 | 王陆军 | Double-axle hydraulic slow-closing butterfly type check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1236871A (en) | 1999-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1089876C (en) | Dual-axle hydraulic butterfly check valve closed slowly | |
| CA2302714A1 (en) | Backflow valve | |
| CN209278561U (en) | One kind is slow to open the double hammer check-valves of Slow Close | |
| CN2339817Y (en) | Double-axle hydraulic slow-closing butterfly type check valve | |
| CN2872014Y (en) | Guiding non-flowing pop safety valve | |
| CN2440987Y (en) | Hydraulic sustained stop valve | |
| CN2685394Y (en) | Hydraulic floating gates | |
| CN110388484B (en) | Swing check valve | |
| CN1327153C (en) | Two speed hydraulic cylinder for valve | |
| CN2469279Y (en) | Emergency check valve with auxiliary opening device | |
| KR100530001B1 (en) | Structure of wastegate valve for turbocharger | |
| CN2851770Y (en) | Water-hammer eliminating eccentric slow-closing check valve | |
| CN219432527U (en) | Slowly-closed check valve and slowly-closed oil cylinder thereof | |
| CN2536805Y (en) | Hydraulic turbine turning vane sectionalized closing devices | |
| CN2802220Y (en) | Check valve | |
| CN220540324U (en) | Hard seal high-pressure gate valve | |
| CN214743417U (en) | Pneumatic control quick-opening cut-off valve device | |
| CN221974387U (en) | A check valve with pressure detection alarm function | |
| CN214946615U (en) | Full-automatic hydraulic control slow-closing check water pump outlet valve | |
| KR200199733Y1 (en) | Slow shut off check valve with cushion cylinder | |
| CN85203748U (en) | Slow closing check valve | |
| CN215110546U (en) | Electric butterfly valve convenient to installation | |
| CN222046668U (en) | Closing device for gate hole on runner | |
| CN2379669Y (en) | Quick-action, taper shaped, sealing and silencing check valve | |
| CN221423956U (en) | Slowly-closed swing check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 98113567.6 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 98235803.2 utility model patent to be given up, and in the 18 volume of the 35 issue of the new type of communique on the patent right to abandon the announcement. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |