CN203614823U - Ceramic seal rotary-opening and slowly-closing type check valve - Google Patents
Ceramic seal rotary-opening and slowly-closing type check valve Download PDFInfo
- Publication number
- CN203614823U CN203614823U CN201320675379.7U CN201320675379U CN203614823U CN 203614823 U CN203614823 U CN 203614823U CN 201320675379 U CN201320675379 U CN 201320675379U CN 203614823 U CN203614823 U CN 203614823U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve seat
- transition
- ceramic
- 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
Images
Abstract
The utility model provides a ceramic seal rotary-opening and slowly-closing type check valve and belongs to valves. The ceramic seal rotary-opening and slowly-closing type check valve is characterized in that a valve body is connected with a secondary valve body; a valve cover is mounted on the upper part of the valve body; a valve body hinge end is arranged inside a valve cavity of the valve body; one end of a rocker is connected with the valve body hinge end through a pin shaft; a valve clack is mounted at the other end of the rocker; a transition valve base is provided with two sealing faces which are respectively contacted with a sealing face of the valve clack and a sealing face of the secondary valve body; a valve base fixing ring is fixedly arranged on the secondary valve body; a throttling small hole is formed in the valve base fixing ring; the transition valve base is sleeved on the valve base fixing ring and is mounted inside the secondary valve body; an elastic element is clamped between the secondary valve body and the transition valve base; a sealing ceramic layer is arranged on the sealing face of the secondary valve body. The ceramic seal rotary-opening and slowly-closing type check valve provided by the utility model has the beneficial effects that the damage caused by a water hammer can be prevented or reduced due to the movable transition valve base, and the elastic element and a throttling cavity with the buffering effect, so that the crushing of the ceramic sealing piece under the effect of an impact force when the valve is closed can be avoided. The ceramic seal rotary-opening and slowly-closing type check valve is applicable to corrosion, flushing, abrasion, large-caliber, high-pressure and high-flow rate working conditions.
Description
Technical field
The utility model belongs to a kind of valve, and particularly a kind of ceramic seal revolves and opens slow closed check damper.
Background technique
Valve is a kind of piping element of controlling fluid motion.Swing check valve is the one of valve, and conventional Swing check valve mostly is metallic material manufacture, not erosion resistance and wearing and tearing, and working life is short.Existing ceramic sealed swing check valve, valve seat and valve body are relatively-stationary, in the time of ducted medium reverse flow, when closing, the flap of valve can produce very large impact force, due to the not characteristic of impact resistance of stupalith, can make the cracked damage of ceramic seal pair (valve seat, flap), make the function of valve fluid out of hand.Valve aperture is larger, pressure is higher, flow velocity is faster, and the secondary degree of damaging of ceramic seal is just more serious.
Summary of the invention
The utility model aims to provide a kind of ceramic seal and revolves and open slow closed check damper, is applicable in liquid, gas, gas-liquid two-phase flow pipe-line system,
The purpose of this utility model is achieved through the following technical solutions: a kind of ceramic seal revolves and opens slow closed check damper, and it comprises valve body, auxiliary valve body, valve gap, rocking bar, flap and valve seat; Valve body is connected with auxiliary valve body, and valve gap is arranged on the top of valve body; The medium access way that valve body is provided with valve pocket and is communicated with valve pocket, is provided with valve body rounded end in valve pocket, one end of rocking bar is connected with valve body rounded end by bearing pin, and flap is arranged on the other end of rocking bar, and the sealing surface of flap is provided with flap ceramic layer; It is characterized in that: it also comprises valve seat, said valve seat is made up of valve seat retainer ring, transition valve seat, elastic element, and transition valve seat has two sealing surfaces, contacts respectively with the sealing surface of valve clack sealing surface, auxiliary valve body, realizes sealing; Valve seat retainer ring is fixed on auxiliary valve body, and valve seat retainer ring is provided with throttling pore, and transition valve cover for seat is contained on valve seat retainer ring, is arranged in auxiliary valve body, between auxiliary valve body and transition valve seat, clamps elastic element, and the sealing surface of auxiliary valve body is provided with sealed ceramic layer.
Said transition valve seat adopts zirconia-based ceramics, alumina base, silica-based, tungsten carbide-base or silicon nitride ceramic material to make.
Between said auxiliary valve body and valve seat retainer ring, clamp O type circle.
The inner chamber coated ceramic layer of said valve body.
The beneficial effects of the utility model are:
1, valve seat is by valve seat retainer ring, transition valve seat, elastic element and one of O shape circle composition have the cavity of throttling function, in the time of ducted medium reverse flow, the early stage of valve closing, mid-term is the same with common Swing check valve, in the time closing latter stage, flap components drive transition valve seat moves, compression elastic element, the medium in compression throttling chamber simultaneously, form throttle, extend the valve shut-in time in latter stage, play buffer function, reduce the impact force between valve seal pair, thereby the ceramic seal part of protection valve, reduced the harm of medium water hammer to valve and pipe-line system simultaneously.
2, be applicable to stop medium counter flow on heavy caliber, high pressure, flow velocity are fast, burn into washes away system pipeline, improve usability, sealability, reduce leakage rate, prevent from or alleviate water hammer endangering, avoid cracked under the impact force action of ceramic seal part in the time of valve closing, increase the service life, save the input of engineering time and manpower, for system safety operation provides Reliable guarantee.
accompanying drawing explanation:
Fig. 1 is the utility model closed condition structural representation;
Fig. 2 is the C portion enlarged view of Fig. 1;
Fig. 3 is the utility model opening state structural representation.
Wherein: 1-valve body; 2-rocking bar; 3-flap; 4-flap ceramic layer; 5-auxiliary valve body; 6-elastic element; 7-sealed ceramic layer; 8-transition valve seat; 9-O shape circle; 10-valve seat retainer ring; 11-throttling pore; 12-valve body rounded end, 13-bearing pin, 14-valve gap, 15-ceramic layer.
embodiment:
As shown in Figure 1, 2, a kind of ceramic seal revolves and opens slow closed check damper, valve body is split-type structural, be connected with auxiliary valve body 5 use sealed ceramic layers 7, bolt, nut by valve body 1, the inner chamber coated ceramic layer 15 of valve body 1 and auxiliary valve body 5, valve gap 14 use Sealings, bolt, nut are arranged on the top of valve body 1, the medium access way that valve body 1 is provided with valve pocket and is communicated with valve pocket, in valve pocket, be provided with valve body rounded end 12, one end of rocking bar 2 is connected with valve body rounded end 12 by bearing pin 13, flap 3 is arranged on the other end of rocking bar 2, flap 3 can contact with transition valve seat 8 around bearing pin 13 rotations, realize sealing, the sealing surface of flap 3 is provided with flap ceramic layer 4, valve seat retainer ring 10 is fixed on auxiliary valve body 5, valve seat retainer ring 10 is provided with throttling pore 11, transition valve seat 8 is sleeved on valve seat retainer ring 10, pack in auxiliary valve body 5, between auxiliary valve body 5 and transition valve seat 8, clamp elastic element 6, between auxiliary valve body 5 and valve seat retainer ring 10, clamp O type circle 9, the sealing surface of auxiliary valve body 5 is provided with sealed ceramic layer 7, guarantee sealing and the working life of valve.
Said transition valve seat 8 adopts zirconia-based ceramics, alumina base, silica-based, tungsten carbide-base or silicon nitride ceramic material to make.
working principle:
As shown in Figure 1, 2, direction shown in valve upward arrow be MEDIA FLOW to.In the time that medium flows in a direction indicated by the arrow, flap 3, under the effect of medium, rotates around bearing pin 13 together with rocking bar 2, makes valve opening; In the time of medium counter flow, under the acting in conjunction of flap deadweight and medium active force, first make flap and the 8 sealing surface laminatings of transition valve seat, and then promotion transition valve seat moves, compression elastic element 6, gas or the liquid medium in compression throttling chamber simultaneously, make slowly to flow out by designing requirement in gas or the liquid medium throttling pore 11 from valve seat retainer ring 10, flap continue to promote transition valve seat 8 until with sealed ceramic layer 7 close contact, between flap 3, flap ceramic layer 4, transition valve seat 8, sealed ceramic layer 7, form enough seal pressures, make valve closing.Move at transition valve seat, compression elastic element and throttling chamber medium be while forming throttle; extend the time of closing latter stage; play buffer function; reduce the impact force between valve seal pair; thereby protect the ceramic seal part of valve, reduced the harm of medium water hammer to valve and pipe-line system simultaneously.
Claims (4)
1. ceramic seal revolves and opens a slow closed check damper, and it comprises valve body, auxiliary valve body, valve gap, rocking bar, flap and valve seat; Valve body is connected with auxiliary valve body, and valve gap is arranged on the top of valve body; The medium access way that valve body is provided with valve pocket and is communicated with valve pocket, is provided with valve body rounded end in valve pocket, one end of rocking bar is connected with valve body rounded end by bearing pin, and flap is arranged on the other end of rocking bar, and the sealing surface of flap is provided with flap ceramic layer; It is characterized in that: it also comprises valve seat, said valve seat is made up of valve seat retainer ring, transition valve seat, elastic element, and transition valve seat has two sealing surfaces, contacts respectively with the sealing surface of valve clack sealing surface, auxiliary valve body, realizes sealing; Valve seat retainer ring is fixed on auxiliary valve body, and valve seat retainer ring is provided with throttling pore, and transition valve cover for seat is contained on valve seat retainer ring, is arranged in auxiliary valve body, between auxiliary valve body and transition valve seat, clamps elastic element, and the sealing surface of auxiliary valve body is provided with sealed ceramic layer.
2. a kind of ceramic seal as claimed in claim 1 revolves and opens slow closed check damper, it is characterized in that: said transition valve seat adopts zirconia-based ceramics, alumina base, silica-based, tungsten carbide-base or silicon nitride ceramic material to make.
3. a kind of ceramic seal as claimed in claim 1 revolves and opens slow closed check damper, it is characterized in that: between said auxiliary valve body and valve seat retainer ring, clamp O type circle.
4. a kind of ceramic seal as claimed in claim 1 revolves and opens slow closed check damper, it is characterized in that: inner chamber coated ceramic layer or the corrosion-resistant finishes of said valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675379.7U CN203614823U (en) | 2013-10-30 | 2013-10-30 | Ceramic seal rotary-opening and slowly-closing type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675379.7U CN203614823U (en) | 2013-10-30 | 2013-10-30 | Ceramic seal rotary-opening and slowly-closing type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614823U true CN203614823U (en) | 2014-05-28 |
Family
ID=50767471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320675379.7U Expired - Fee Related CN203614823U (en) | 2013-10-30 | 2013-10-30 | Ceramic seal rotary-opening and slowly-closing type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614823U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847930A (en) * | 2015-04-18 | 2015-08-19 | 张新丰 | Slow-closed rotary-opened type check valve capable of preventing water hammer |
| CN106838384A (en) * | 2017-04-11 | 2017-06-13 | 张新丰 | Protecting against shock swing check valve assembly method |
| CN107061804A (en) * | 2017-04-11 | 2017-08-18 | 张新丰 | Protecting against shock swing check valve |
-
2013
- 2013-10-30 CN CN201320675379.7U patent/CN203614823U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847930A (en) * | 2015-04-18 | 2015-08-19 | 张新丰 | Slow-closed rotary-opened type check valve capable of preventing water hammer |
| CN104847930B (en) * | 2015-04-18 | 2017-06-30 | 张新丰 | Water hammer-resistant slow closing swing check valve |
| CN106838384A (en) * | 2017-04-11 | 2017-06-13 | 张新丰 | Protecting against shock swing check valve assembly method |
| CN107061804A (en) * | 2017-04-11 | 2017-08-18 | 张新丰 | Protecting against shock swing check valve |
| CN107061804B (en) * | 2017-04-11 | 2018-11-02 | 张新丰 | Protecting against shock swing check valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2868945A1 (en) | Floating ball valve | |
| CN102269279A (en) | Cast stone ball valve with combined seal | |
| CN203614823U (en) | Ceramic seal rotary-opening and slowly-closing type check valve | |
| CN201593624U (en) | Three-way switching ceramic stop valve | |
| CN203477476U (en) | Rotating-off type check valve | |
| CN205937945U (en) | Two -way metal seal's of high temperature unsteady ball valve | |
| CN202674366U (en) | Valve seat of ball valve | |
| CN203230863U (en) | Anti-impact stop valve sealing structure | |
| CN203614759U (en) | Switch-type ceramic stop valve | |
| CN204828735U (en) | Promotion formula floodgate plug valve sealed firmly | |
| CN206754457U (en) | A kind of floating ball valve | |
| CN205663943U (en) | Many sealed control check valves | |
| CN211624277U (en) | Improved high-performance ball valve | |
| CN203823116U (en) | Ceramic ball valve with high corrosion resistance and erosive wear resistance | |
| CN202371240U (en) | Soft seal safety valve | |
| CN205479460U (en) | Floating ball valve | |
| CN202561109U (en) | V-shaped ball valve | |
| CN202708128U (en) | Stop valve | |
| CN202955265U (en) | Dual-valve seat sealing structure | |
| CN201944329U (en) | Floating ball valve with large diameter | |
| CN106015660A (en) | Quick closing check valve | |
| CN205908790U (en) | Take protection architecture's ball valve valve seat mounting structure | |
| CN201651333U (en) | Special valve for chlorine gas | |
| CN204459232U (en) | High-temperature wearable two-way hard seal purges slurry oil shear valve | |
| CN215861824U (en) | Hydraulic forced sealing valve seat of stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160623 Address after: 300308 No. 106 South Central Road, Tianjin Airport Economic Zone Patentee after: SHENGKAI (TIANJIN) INDUSTRIAL Co.,Ltd. Address before: In 300308 the Binhai New Area of Tianjin Airport Economic Zone No. 106 Patentee before: Tianjin Shengkai Industrial Technology Development Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20211030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |