CN204267801U - Ball check valve - Google Patents
Ball check valve Download PDFInfo
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- CN204267801U CN204267801U CN201420529368.2U CN201420529368U CN204267801U CN 204267801 U CN204267801 U CN 204267801U CN 201420529368 U CN201420529368 U CN 201420529368U CN 204267801 U CN204267801 U CN 204267801U
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- valve shell
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Abstract
The utility model discloses a kind of ball check valve, relate to the safety check in valve technology field, its object is to provide a kind of steel core glueballs to tremble when ball valve standard-sized sheet less, less to pipe-line system collapsing force ball check valve.Its technological scheme is: comprise front valve shell, rear valve body and steel core glueballs, in front valve shell, in rear valve body, correspondence is provided with many front valve shell gussets, rear valve body gusset by front valve shell internal cavities, rear valve body internal cavities is separated into many front valve shell runners, rear valve body runner, be equipped with and ball cover in every bar rear valve body runner, ball cover front end to be stretched in corresponding front valve shell runner and is fitted with front valve shell runner inner wall, ball cover rear end is connected with special-shaped taper, the steel core glueballs that can move forward and backward along ball cover axis is provided with in ball cover, front valve shell runner is communicated with by ball cover one_to_one corresponding with rear valve body runner, special-shaped taper internal surface is connected with seal ring, and the infraoral arc angle of described seal ring and steel core glueballs coincide and seal.The utility model is used for safety check.
Description
Technical field
The utility model relates to the safety check in valve technology field, is specifically related to a kind of ball check valve.
Background technique
Valve is the controlling component of pipeline fluid transporting system, and it is used to change path section and media flow direction, has the functions such as water conservancy diversion, cut-off, throttling, non-return, shunting or overflow release.Safety check is also called reflux valve, check valve, back pressure valve, one-way valve.Safety check is exactly a kind of valve the most frequently used in numerous valve kind, and its Main Function prevents pipe-line system medium from flowing backwards, prevents pump and drive motor reversion thereof, and the releasing of container inner medium.Safety check level or at right angle setting, be often installed on the water outlet of water pump, damages pump to prevent refluence and water hammer.
The most general safety check of current domestic use mainly contains Swing check valve, Lift check valve, butterfly check valve, buffer valve, ball check valve and multiple flow passages ball check valve, but these safety check in use some shortcomings of ubiquity.Because water hammering produces " loud noise " and vibration when Swing check valve is closed, valve inner fluid fluidised form is disorderly, and hydraulic loss is larger; The flap that is freely elevated of Lift check valve is rising in the process of opening completely, and flap is consuming fluid energy always, and drag losses is large, and Lift check valve to there is passage narrow, the shortcomings such as inflow-rate of water turbine restriction is larger; Drive the bearing pin serious wear that flap rotates in butterfly check valve, it can only be arranged on horizontal pipe, and sealing is poor, and flow resistance, water hammer pressure are larger; Though buffer valve has, volume is little, lightweight, fluid resistance is little, close the advantages such as valve impact force is little, and its maintenance workload is large, and for ensureing the continuity flowing of liquid, must install automatic control pressure vent, structure is more complicated; Ball check valve and multiple flow passages ball check valve are after safety check is opened, and glueballs is under the percussion of liquid, and vibration is serious, and the rubber layer on glueballs surface destroys very fast.
The model utility being 96233059.0 as application number discloses the micro-resistance ball check valve of a kind of heavy caliber multiple flow passages, and it is made up of front valve shell, rear valve body, ball valve, taper, and has multiple tracks runner in the valve body of front and back, and cross section of fluid channel is isometrical regular proterties.This ball check valve still has ball valve under the percussion of liquid, there is the serious problem of vibration, and under the effect of hydraulic shock, the path of travel of ball valve is optimized not, and the destructiveness of the water hammer pressure produced during termination of pumping to pipe-line system is higher, and the working life of safety check shortens.
Summary of the invention
The purpose of this utility model is to provide a kind of steel core glueballs to tremble when ball valve standard-sized sheet less, less to pipe-line system collapsing force ball check valve.
For achieving the above object, the technical solution of the utility model is:
A kind of ball check valve, comprise front valve shell, rear valve body and steel core glueballs, be provided with many front valve shell gussets in front valve shell and front valve shell internal cavities is separated into many front valve shell runners, be provided with many rear valve body gussets in rear valve body and rear valve body internal cavities is separated into many rear valve body runners, it is characterized in that: in every bar rear valve body runner, be equipped with ball cover, ball cover front end to be stretched in corresponding front valve shell runner and is fitted with front valve shell runner inner wall, ball cover rear end is connected with special-shaped taper, the steel core glueballs that can move forward and backward along ball cover axis is provided with in ball cover, front valve shell runner is communicated with by ball cover one_to_one corresponding with rear valve body runner, special-shaped taper internal surface is connected with seal ring, and the infraoral arc angle of described seal ring and steel core glueballs coincide and seal.
Further, the front valve shell runner in front valve shell and the rear valve body runner in rear valve body are equipped with 5.
Further, the front valve shell runner in front valve shell and the rear valve body runner in rear valve body are equipped with 7.
Further, the valve body faying surface place of front valve shell and rear valve body is provided with gasket seal, and described gasket seal comprises shim body, and the radial direction along shim body in shim body is provided with ripple dentary frame, outer rubber circle and inner rubber circle from outer successively toward interior.
Further, the internal surface of front valve shell and rear valve body is all coated with stellite, and internal surface and the outer surface of front valve shell gusset, ball cover and rear valve body gusset are all coated with stellite.
Compared with prior art, the beneficial effects of the utility model are:
,by arranging special-shaped taper structure in rear valve body, steel core glueballs trembling and hydraulic loss when ball valve standard-sized sheet can be effectively reduced, the special ball cover of fixing special-shaped taper and the motion of control steel core glueballs is set simultaneously in rear valve body, optimize steel core glueballs path of travel and time, the water hammer pressure produced when controlling unexpected termination of pumping, alleviate the destruction to pipe-line system, thus improve the working life of ball valve; And ball check valve of the present utility model has the advantages such as structure is simple, volume is little, lightweight, cost is low, and the installation of safety check is simple, long service life, and maintenance workload is little; By being coated with rubber sealant in the outside of steel core glueballs, when steel core glueballs contacts with seal ring, sealing effect is better, and structure is simple, and Security is high, and sealability is high, long service life.
,the valve body faying surface place of front valve shell and rear valve body is provided with gasket seal, and sealing pad combines O type circle and metal wave tooth skeleton improves, and can reach more sealing effect.
,internal surface and the outer surface of the internal surface of front valve shell, rear valve body and front valve shell gusset, ball cover and rear valve body gusset are all coated with stellite, stellite is the cemented carbide of a kind of ability all kinds abrasion and corrosion and high temperature oxidation, substantially prolongs the working life of valve gap.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A sectional view of ball check valve in embodiment two;
Fig. 3 is A-A sectional view of ball check valve in embodiment three;
Fig. 4 is the structural representation of special-shaped taper and steel core glueballs in the utility model;
Fig. 5 is the structural representation of gasket seal in the utility model;
Wherein, reference character is: 1-front valve shell, 2-rear valve body, 3-steel core glueballs, 4-special-shaped taper, 5-rear valve body runner, 6-front valve shell runner, 7-valve body faying surface, 8-ball cover, 9-gasket seal, 11-front valve shell gusset, 21-rear valve body gusset, 31-rubber sealant, 41-seal ring, 42-annular protrusion, 91-shim body, 92-outer rubber circle, 93-inner rubber circle, 94-ripple dentary frame.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Embodiment one
A kind of ball check valve, comprises front valve shell 1, rear valve body 2 and steel core glueballs.Many front valve shell gussets 11 are provided with in front valve shell 1, many front valve shell 1 internal cavities is divided into multiple many front valve shell runners 6 by front valve shell gusset 11, and this front valve shell runner 6 is the space formed between front valve shell 1 inwall and front valve shell gusset 11, between front valve shell gusset 11 and front valve shell gusset 11.Many rear valve body gussets 21 are provided with in rear valve body 2, many rear valve body 2 internal cavities is divided into multiple many rear valve body runners 5 by rear valve body gusset 21, and this rear valve body runner 5 is the space formed between rear valve body 2 inwall and rear valve body gusset 21, between rear valve body gusset 21 and rear valve body gusset 21.In every bar rear valve body runner 5, be provided with ball cover 8, the cross section of the runner that the cross section of ball cover 8 is corresponding with it is suitable; Ball cover 8 front end is stretched in corresponding front valve shell runner 6, and fits with corresponding front valve shell runner 6 inwall, and ball cover 8 rear end is connected with special-shaped taper 4, adopts and be welded to connect between ball cover 8 and special-shaped taper 4.Be provided with steel core glueballs 3 in ball cover 8, this steel core glueballs can move forward and backward along the axial direction of ball cover 8 in ball cover 8.Ball cover 8 offers corresponding hole or seam, by this hole or seam, front valve shell runner 6 is communicated with rear valve body runner 5, the liquid flow in front valve shell runner 6 is flowed in rear valve body runner 5 by the hole on ball cover 8 or seam.Wherein, the length of ball cover 8 is 1.8 ~ 1.9 times of steel core glueballs 3 radius, and the radius of ball cover 8 is greater than the radius of steel core glueballs 3 and is less than 1.35 times of steel core glueballs 3 radius.
Special-shaped taper 4 internal surface is connected with seal ring 41, realized by the annular protrusion 42 be arranged on special-shaped taper 4 internal surface during connection between this special-shaped taper 4 and seal ring 41, described seal ring 41 is by therein coated for described annular protrusion 42, described seal ring 41 infraoral arc angle and steel core glueballs 3 coincide and seal, and described steel core glueballs 3 outside is coated with rubber sealant 31.By being coated with rubber sealant 31 in the outside of steel core glueballs 3, when steel core glueballs 3 contacts with seal ring 41, sealing effect is better, and structure is simple, and Security is high, and sealability is high, long service life.
Working principle of the present utility model is: liquid enters valve body by the pipeline be connected with front valve shell 1, and flow through respective independently runner in front valve shell 1, steel core glueballs 3 is under the thrust of liquid, leave front valve shell 1, special-shaped taper 4 is moved in the ball cover 8 of rear valve body 2, and under the effect of fluid pressure, be pressed on special-shaped taper 4, now safety check is opened completely, liquid is by rear valve body 2 independent flow passage, be expelled in the pipeline be connected with rear valve body 2 along taper after not closing ball cover 8, thus complete the overall process that overcurrent opened by safety check; When termination of pumping, steel core glueballs 3 in safety check is subject to not closing the water hammer pressure effect that special-shaped taper 4 bores tail, departs from, move to sealing place of front valve shell 1 in ball cover 8 from the special-shaped taper 4 rear valve body 2, block liquid, prevent liquid reverse flow and the generation preventing destructive water hammer.When ball valve standard-sized sheet, make the overwhelming majority of steel core glueballs 3 in each independent flow passage in the parcel of special-shaped taper 4, improve the stress of steel core glueballs 3 in rear valve body 2 in safety check, make pipeline when carrying out Liquid transfer, under different flow velocitys, after ball valve is opened completely, steel core glueballs 3 is pressed in special-shaped taper 4 under the effect of hydraulic pressure, and keep static balancing, thus eliminate the phenomenon of steel core glueballs 3 owing to trembling by generation during force unbalance, alleviate the destructiveness on steel core glueballs 3 surface, and the hydraulic loss produced of trembling reduced due to steel core glueballs 3.
Embodiment two
On the basis of embodiment one, front valve shell runner 6 in front valve shell 1 and the rear valve body runner 5 in rear valve body 2 are equipped with 5, front valve shell 1, the equal correspondence in rear valve body 2 center are provided with a center front valve shell runner 6, center rear valve body runner 5, are evenly equipped with 4 edge front valve shell runners 6, edge rear valve body runner 5(as shown in Figure 2 outside this center front valve shell runner 6, center rear valve body runner 5).Center front valve shell runner 6 is communicated with center rear valve body runner 5, and 4 edge front valve shell runners 6 are communicated with 4 edge rear valve body runner 5 one_to_one corresponding.
Embodiment three
On the basis of embodiment one, front valve shell runner 6 in front valve shell 1 and the rear valve body runner 5 in rear valve body 2 are equipped with 7, front valve shell 1, the equal correspondence in rear valve body 2 center are provided with a center front valve shell runner 6, center rear valve body runner 5, are evenly equipped with 6 edge front valve shell runners 6, edge rear valve body runner 5(as shown in Figure 3 outside this center front valve shell runner 6, center rear valve body runner 5).Center front valve shell runner 6 is communicated with center rear valve body runner 5, and 6 edge front valve shell runners 6 are communicated with 4 edge rear valve body runner 5 one_to_one corresponding.
Embodiment four
On the basis of embodiment one, embodiment two or embodiment three, front valve shell 1 is also provided with gasket seal 9 with valve body faying surface 7 place of rear valve body 2, described gasket seal 9 comprises shim body 91, and the radial direction along shim body 91 in shim body 91 is provided with ripple dentary frame 94, outer rubber circle 92 and inner rubber circle 93 from outer successively toward interior.Outer rubber circle 92 and inner rubber circle 93 are O type circle, and two rubber o-rings all adopt the corrosion resistant rubber material of high temperature high voltage resistant, fill graphite and form shim body 91 outside outside rubber ring 92, inner rubber circle 93 and ripple dentary frame 94.
During use, bolt on after gasket seal 9 mounting flange device, first first by compressive strain at the inner rubber circle 93 of the effect innermost circle of pretightening force, produce first layer sealing.Then along with the change of load, outer rubber circle 92 also produces amount of deformation.The amount of deformation of two rubber rings reaches as high as more than 40%, has been enough to reach good sealing effect.Now the main seal link of flange-interface is by the outer rubber circle 92 in pad, inner rubber circle 93 in action.If load continues to increase, ripple dentary frame 94 produces distortion, enhanced leaktightness again, and ripple dentary frame 94 and outer rubber circle 92, inner rubber circle 93 have rebound elasticity, automatically can regulate decrement along with the change of load, thus produce best sealing effect.
Embodiment five
On the basis of embodiment one, embodiment four, front valve shell 1 is all coated with stellite with the internal surface of rear valve body 2, and internal surface and the outer surface of front valve shell gusset 11, ball cover 8 and rear valve body gusset 21 are all coated with stellite.Due to the cemented carbide that stellite is a kind of ability all kinds abrasion and corrosion and high temperature oxidation, thus by spraying stellite for it front valve shell 1, rear valve body 2, front valve shell gusset 11, ball cover 8 and the corresponding of rear valve body gusset 21, the use longevity of valve gap can so just greatly be increased.
Claims (5)
1. a ball check valve, comprise front valve shell (1), rear valve body (2) and steel core glueballs (3), be provided with many front valve shell gussets (11) in front valve shell (1) and front valve shell (1) internal cavities is separated into many front valve shell runners (6), be provided with many rear valve body gussets (21) in rear valve body (2) and rear valve body (2) internal cavities is separated into many rear valve body runners (5), it is characterized in that: in every bar rear valve body runner (5), be equipped with ball cover (8), ball cover (8) front end to be stretched in corresponding front valve shell runner (6) and is fitted with front valve shell runner (6) inwall, ball cover (8) rear end is connected with special-shaped taper (4), the steel core glueballs (3) that can move forward and backward along ball cover (8) axis is provided with in ball cover (8), front valve shell runner (6) is communicated with by ball cover (8) one_to_one corresponding with rear valve body runner (5), special-shaped taper (4) internal surface is connected with seal ring (41), and the infraoral arc angle of described seal ring (41) and steel core glueballs (3) coincide and seal.
2. ball check valve as claimed in claim 1, is characterized in that: the front valve shell runner (6) in front valve shell (1) and the rear valve body runner (5) in rear valve body (2) are equipped with 5.
3. ball check valve as claimed in claim 1, is characterized in that: the front valve shell runner (6) in front valve shell (1) and the rear valve body runner (5) in rear valve body (2) are equipped with 7.
4. the ball check valve as described in claim 1,2 or 3, it is characterized in that: front valve shell (1) is provided with gasket seal (9) with valve body faying surface (7) place of rear valve body (2), described gasket seal (9) comprises shim body (91), and the radial direction along shim body (91) in shim body (91) is provided with ripple dentary frame (94), outer rubber circle (92) and inner rubber circle (93) from outer successively toward interior.
5. ball check valve as claimed in claim 1, it is characterized in that: front valve shell (1) is all coated with stellite with the internal surface of rear valve body (2), and internal surface and the outer surface of front valve shell gusset (11), ball cover (8) and rear valve body gusset (21) are all coated with stellite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529368.2U CN204267801U (en) | 2014-09-16 | 2014-09-16 | Ball check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529368.2U CN204267801U (en) | 2014-09-16 | 2014-09-16 | Ball check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267801U true CN204267801U (en) | 2015-04-15 |
Family
ID=52802671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420529368.2U Expired - Fee Related CN204267801U (en) | 2014-09-16 | 2014-09-16 | Ball check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111228595A (en) * | 2020-03-20 | 2020-06-05 | 华中科技大学同济医学院附属协和医院 | Anti-toppling chest bottle |
-
2014
- 2014-09-16 CN CN201420529368.2U patent/CN204267801U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111228595A (en) * | 2020-03-20 | 2020-06-05 | 华中科技大学同济医学院附属协和医院 | Anti-toppling chest bottle |
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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 |
Granted publication date: 20150415 Termination date: 20150916 |
|
| EXPY | Termination of patent right or utility model |