CN208153752U - A kind of hydraulic control valve of bivalve sealing - Google Patents

Abstract

The utility model discloses a kind of hydraulic control valves of bivalve sealing, belong to one kind of pipeline valve, its structure mainly includes valve body, valve seat, diaphragm unit and flap seat etc., the bivalve structure collectively formed by big valve flap and small flap has also been devised, when there is a small amount of terminal user's water condition in the case of valve closing, multiple Slow Close runners in flap seat can be opened by small flap to give water chamber moisturizing；A large amount of moisturizings are carried out into and out of water cavity when great amount of terminals user's water condition occur, then by big valve flap opening valve seated connection is logical.Therefore, by the hydraulic control valve for designing above-mentioned bivalve structure, it can be in valve opening and closing moment by the pressure of small flap control water chamber, to efficiently solve heavy caliber hydraulic control valve in opening and closing moment, namely under a small amount of terminal user's water condition, lead to problems such as valve generation utter long and high-pitched sounds to be easy with flap by cavitation because flap is easy to appear frequent opening and closing.

Description

A kind of hydraulic control valve of bivalve sealing

Technical field

The utility model relates to the waterpower controls of hydraulic control valve, in particular to a kind of sealing of bivalve in a kind of pipeline valve Valve processed.

Background technique

Currently, traditional heavy caliber（DN≥150）Hydraulic control valve be all the i.e. sealing peace using single valve clack sealing structure Mounted in the diaphragm unit of body top, valve rod lower end, which is protruded into, is directly fixedly installed with flap seat in valve body, the bottom of the flap seat Face is equipped with the flap being individually fixedly mounted again, then when flap seat makees lifting moving, can drive the valve seat in flap and limbers Constitute opening and closing in sealing contact；However, the switching motion of above-mentioned this valve mechanism is primarily adapted for use in the use of big flow terminal user The case where water condition, and under a small amount of terminal user's water condition, flap is easy to appear frequent opening and closing, this will lead to valve generation It utters long and high-pitched sounds, and flap is also easy by cavitation.

Summary of the invention

There is provided the technical problem to be solved by the utility model is to overcome the deficiencies of existing technologies a kind of can effectively solve Certainly heavy caliber hydraulic control valve generates the hydraulic control valve uttered long and high-pitched sounds with bivalve sealing the problems such as cavitation flap in opening and closing moment.

The technical issues of the utility model, is achieved through the following technical solutions：

A kind of hydraulic control valve of bivalve sealing, including valve body, be separately positioned on valve body both ends intake antrum and water chamber, It is mounted on into and out of the valve seat between water cavity and is sealingly mounted at the diaphragm unit of body top, the valve rod lower end of the diaphragm unit It protrudes into and flap seat is installed in valve body, be equipped with being fixedly mounted in the bottom surface of flap seat and constitute in sealing contact open with the valve seat The big valve flap closed is equipped with the elastic element of mutual pushing tow between diaphragm unit and flap seat, the valve rod lower end, which is equipped with, to be fixed The small flap of installation, be equipped in the flap seat axially through inlet opening, which is connected to intake antrum, inlet opening The small flap of lifting moving installation is equipped in upper end, which forms lifting moving limit in inlet opening；The flap Be additionally provided with multiple Slow Close runners in seat, lifting moving of each Slow Close runner by small flap in inlet opening and be respectively communicated with into Water hole and water chamber, or the connection of truncation inlet opening and water chamber.

Lifting moving position limiting structure of the small flap in inlet opening is to be equipped with interior shoulder at the middle part of inlet opening, this is interior Shoulder constitutes the mobile limit of decline of the small flap in inlet opening；Flap seat top surface is equipped with the pressing plate being fixedly mounted, which is constituted The mobile limit of rising of the small flap in inlet opening.

The small flap is equipped with external shoulder, and the small flap rises movement, the external shoulder and pressing plate structure in inlet opening It is limited at movement is risen.

The external port of each Slow Close runner is arranged at the top of flap seat and is connected to water chamber, and inner port is downward Inclination is extended on above the interior shoulder of inlet opening；The small flap declines mobile limit in inlet opening and closes each slow The inner port of runner is closed, which is truncated with water chamber；The small flap rises mobile in inlet opening and opens every The inner port of a Slow Close runner, the inlet opening are connected with water chamber.

Mounting hole is equipped at the top of the small flap；The valve rod lower end is packed into mounting hole, which also sets There is split annulus；The small flap top surface is equipped with the lock being fixed on the split annulus and valve rod lower end jointly in mounting hole Tight nut.

The big valve flap is connected on the bottom surface of flap seat by bottom plate compression, and big valve is run through in the inlet opening lower end Valve is connected to intake antrum with bottom plate.

The big valve flap is a flap ring, and the flap seat bottom surface is equipped with for the big valve flap to make to coincide and be embedded in Mounting groove；It is equipped in the middle part of the bottom plate and supplies the perforative inner hole in inlet opening lower end.

The valve seat and small flap are stainless steel material, and the material of flap seat is copper, are between valve seat and big valve flap Soft seal is to seal between small flap and flap seat firmly.

Angle between each Slow Close runner and valve rod is 60 °.

The valve seat is a cyclic structure, which is mounted on into and out of in the limbers between water cavity, valve seat It is convex that top is equipped with the sealing for being higher by limbers and constituting opening and closing in sealing contact with the big valve flap.

Compared with prior art, hydraulic control valve is mainly designed as bivalve valve structure, i.e. big valve flap by the utility model It is fixedly mounted on flap seat bottom surface also according to traditional assembling structure, and constitutes opening and closing in sealing contact with valve seat, small flap is solid Dingan County is mounted in the valve rod lower end of diaphragm unit；Meanwhile be additionally provided in flap seat axially through inlet opening, which wears The intake antrum of big valve flap communicating valve door is crossed, small flap lifting moving is mounted in the upper end of inlet opening and forms lifting moving limit； In addition, being additionally provided with multiple Slow Close runners in flap seat, each Slow Close runner can be by lifting moving of the small flap in inlet opening And it is respectively communicated with inlet opening and water chamber, or the connection of truncation inlet opening and water chamber.Therefore, by designing above structure, just When a small amount of terminal user's water condition can occur when valve is closed, multiple Slow Close runners can be opened by small flap to provide Water cavity moisturizing；When there is great amount of terminals user water condition, then is led to by big valve flap opening valve seated connection into and out of water cavity and largely mended Water.Improved this bivalve sealing hydraulic control valve can in valve opening and closing moment by the pressure of small flap control water chamber, The problems such as moment generation is uttered long and high-pitched sounds with cavitation flap is being opened and closed to efficiently solve heavy caliber hydraulic control valve.

Detailed description of the invention

Fig. 1 is the schematic cross-sectional view of the utility model.

Fig. 2 is the sectional structure enlarged drawing of flap seat.

Fig. 3 is the sectional structure enlarged drawing of small flap.

Specific embodiment

It will elaborate again by above-mentioned attached drawing to the utility model embodiment below.

As shown in Fig. 1 ~ Fig. 3,1. valve bodies, 11. intake antrums, 12. water chambers, 2. valve seats, 3. diaphragm units, 31. valve rods, 32. elastic element, 4. flap seats, 41. inlet openings, 42. Slow Close runners, 421. external ports, 422. inner ports, shoulder, 44. in 43. Mounting groove, 5. small flaps, 51. mounting holes, 52. external shoulders, 6. big valve flaps, 7. bottom plates, 8. pressing plates, 9. split annulus, 10. locking screws It is female.

A kind of hydraulic control valve of bivalve sealing, as shown in Figure 1, being related to one kind（DN≥150）Heavy caliber waterpower control Valve, structure are mainly made of valve body 1, valve seat 2, diaphragm unit 3, flap seat 4, small flap 5 and big valve flap 6 etc..

The horizontal chamber that horizontal connection is equipped in the valve body 1 is connected to the perpendicular chamber that horizontal top of chamber is arranged in, i.e. valve body 1 with inclination Three-port structure is formed through horizontal chamber and perpendicular chamber；The horizontal chamber both ends are set to intake antrum 11 and water chamber 12, i.e., shown in FIG. 1 View left end be intake antrum 11, view right end be water chamber 12, should be on same level axial line into and out of water cavity, and into, The limbers being obliquely installed is equipped between water chamber；Angle is formed between the limbers axial line and horizontal axis line, is led to The valve seat 2 of screw thread screwing hermetic connection is equipped in water hole, which is a cyclic structure, logical equipped with being higher by the top of valve seat 2 The sealing in water hole is convex, can constitute opening and closing in sealing contact with big valve flap 6, that is, big valve flap 6 and seals and convex collectively form entire valve The sprue of door seals on-off structure.

The sealing of diaphragm unit 3 is fixedly mounted on perpendicular chamber top, and valve body is protruded into 31 lower end of valve rod of the diaphragm unit 3 In 1, and the small flap 5 being fixedly mounted is equipped in 31 lower end of valve rod, the specific structure is shown in FIG. 3：Installation is equipped at the top of small flap 5 Hole 51, the mounting hole are the counter bore structures opened up downwards by small 5 top surface of flap along its axial line, and 31 lower end of valve rod is packed into In mounting hole 51, split annulus 9 is additionally provided in 31 lower end of valve rod；Then the lock that screw thread screws connection is equipped in small 5 top surface of flap Tight nut 10, and split annulus 9 and 31 lower end of valve rod are fixed on jointly in mounting hole 51 by the locking nut, to realize Fixed installation of the small flap 5 in 31 lower end of valve rod.

Also lifting moving is mounted in flap seat 4 the small flap 5 simultaneously, and specific structure is：Edge is equipped in flap seat 4 Its axial line make axially through inlet opening 41, which is connected to intake antrum 11, and 5 lifting moving of small flap is mounted on In 41 upper end of inlet opening and form lifting moving limit.

Lifting moving position limiting structure of the small flap 5 in inlet opening 41 is to be equipped with interior shoulder at the middle part of inlet opening 41 43, small 5 lower end of flap declines the moving contact interior shoulder 43, that is, constitutes the mobile limit of decline of the small flap 5 in inlet opening 41；Valve 4 top surface of valve seat, which is equipped with, makees the pressing plate 8 being fixedly mounted with screw, and external shoulder 52 is additionally provided on small flap 5, then small flap 5 is being intake When rising mobile in hole 41, which will contact with pressing plate 8, move to constitute rising of the small flap 5 in inlet opening 41 Dynamic limit.

Meanwhile multiple Slow Close runners 42 as shown in Figure 2, the external port 421 of each Slow Close runner are additionally provided in flap seat 4 It is arranged at 4 top of flap seat and is connected to water chamber 12, inner port 422 tilts down extension and is arranged in inlet opening 41 The top of shoulder 43, and form between valve rod 31 60 ° of angle；Therefore, decline in inlet opening 41 when small flap 5 mobile and limited Behind position, the inner port 422 of each Slow Close runner 42 can be closed, so that the connection of inlet opening 41 Yu water chamber 12 be truncated；When After small flap 5 rises movement in inlet opening 41, the inner port 422 of each Slow Close runner 42 can be opened, thus by inlet opening 41 are connected to water chamber 12.That is, lifting moving of each Slow Close runner 42 by small flap 5 in inlet opening 41 And it is respectively communicated with inlet opening 41 and water chamber 12, or the connection of truncation inlet opening 41 and water chamber 12.

The big valve flap 6 is connected on the bottom surface of flap seat 4 by the compression of bottom plate 7, which is a flap ring, It can coincide and be inlaid in the preset mounting groove 44 in 4 bottom surface of flap seat, inner hole is equipped in the middle part of bottom plate 7, in the big valve flap 6 that is fixed and clamped Afterwards, 41 lower end of inlet opening can be by the inner hole downward through that is, 41 lower end of inlet opening can run through big valve flap 6 and bottom plate 7 simultaneously And it is connected to intake antrum 11.

The elastic element 32 of mutual pushing tow is equipped between the diaphragm unit 3 and flap seat 4, which is sleeved on Outside valve rod 31, the reset closing function between big valve flap 6 and valve seat 2 is primarily served.

The valve seat 2 of the utility model uses stainless steel material, and the material of flap seat 4 is copper, and small flap 5 is stainless using 304 Steel is then soft seal between big valve flap 6 and valve seat 2, is to seal firmly between small flap 5 and flap seat 4, the course of work is as follows： In the case that valve is closed, when there is a small amount of terminal user's water condition, the pressure in water chamber 12 slightly declines, then small valve Valve 5 will rise mobile and open multiple Slow Close runners 42, and flap seat 4 is still within stationary state, i.e. big valve flap 6 and does not open at this time It opens, intake antrum 11 is connected to water chamber 12 by multiple Slow Close runners 42 and gives moisturizing, after filling, under small flap 5 is just automatic Drop is mobile and closes multiple Slow Close runners 42；When there is great amount of terminals user's water condition, the pressure in water chamber 12 is substantially Decline, then small flap 5 first rises mobile and opens multiple Slow Close runners 42, when small flap 5 rises mobile limit, namely small valve Valve 5 reaches maximum Lift, makes valve rod 31 persistently rise movement under the active force of diaphragm unit 3, and then drive small valve The rising movement synchronous with big valve flap 6 of valve 5, flap seat 4, the big valve flap are detached from valve seat 2 and open, and intake antrum 11 can pass through master at this time Runner largely gives water chamber 12 moisturizing, after having mended water, under the active force that diaphragm unit 3 combines elastic element 32, and valve rod 31 Decline movement, big valve flap 6 first closed by valve seat 2 in sealing contact at this time, after 12 pressure complete stability of water chamber, small flap 5 Slowly multiple Slow Close runners 42 are closed in decline again, i.e., valve reset is at normality structure.

It, can be in valve opening and closing moment by the pressure of small flap 5 control water chamber 12, to have by this bivalve structure Effect solves heavy caliber hydraulic control valve and is opening and closing the problems such as moment generation is uttered long and high-pitched sounds with cavitation flap.

The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.

Claims (10)

1. a kind of hydraulic control valve of bivalve sealing, including valve body（1）, be separately positioned on the intake antrum at valve body both ends（11）With go out Water cavity（12）, be mounted on into and out of the valve seat between water cavity（2）And it is sealingly mounted at valve body（1）The diaphragm unit at top（3）, should Valve body is protruded into the valve rod lower end of diaphragm unit（1）Interior installation flap seat（4）, the bottom surface of flap seat be equipped be fixedly mounted, simultaneously With the valve seat（2）Constitute the big valve flap of opening and closing in sealing contact（6）, diaphragm unit（3）With flap seat（4）Between be equipped with mutually top The elastic element pushed away（32）, it is characterised in that the valve rod（31）Lower end is equipped with the small flap being fixedly mounted（5）, the valve Valve seat（4）It is interior be equipped with axially through inlet opening（41）, which is connected to intake antrum（11）, inlet opening is equipped in upper end The small flap of lifting moving installation（5）, the small flap is in inlet opening（41）Interior formation lifting moving limit；The flap seat （4）Inside it is additionally provided with multiple Slow Close runners（42）, each Slow Close runner is by small flap（5）In inlet opening（41）Interior lifting moving And it is respectively communicated with inlet opening（41）With water chamber（12）, or truncation inlet opening（41）With water chamber（12）Connection.

2. a kind of hydraulic control valve of bivalve sealing according to claim 1, it is characterised in that the small flap（5）? Inlet opening（41）Interior lifting moving position limiting structure is in inlet opening（41）Middle part be equipped with interior shoulder（43）, the small valve of interior shoulder composition Valve（5）In inlet opening（41）The mobile limit of interior decline；Flap seat（4）Top surface is equipped with the pressing plate being fixedly mounted（8）, the pressing plate structure At small flap（5）In inlet opening（41）The mobile limit of interior rising.

3. a kind of hydraulic control valve of bivalve sealing according to claim 2, it is characterised in that the small flap（5）On Equipped with external shoulder（52）, the small flap（5）In inlet opening（41）Interior rising movement, the external shoulder（52）With pressing plate（8）In composition Rise mobile limit.

4. a kind of hydraulic control valve of bivalve sealing according to claim 2, it is characterised in that each Slow Close stream Road（42）External port（421）It is arranged at flap seat（4）Top is simultaneously connected to water chamber（12）, inner port（422）Dip down Tiltedly it is extended on inlet opening（41）Interior shoulder（43）Top；The small flap（5）In inlet opening（41）The mobile limit of interior decline Position and close each Slow Close runner（42）Inner port（422）, the inlet opening（41）With water chamber（12）It is truncated；Described is small Flap（5）In inlet opening（41）Interior rising is mobile and opens each Slow Close runner（42）Inner port（422）, the inlet opening（41） With water chamber（12）It is connected.

5. a kind of hydraulic control valve of bivalve sealing according to claim 2, it is characterised in that the small flap（5）Top Portion is equipped with mounting hole（51）；The valve rod（31）Lower end is packed into mounting hole（51）It is interior, the valve rod（31）Lower end is additionally provided with split Annulus（9）；The small flap（5）Top surface is equipped with the split annulus（9）And valve rod（31）Lower end is fixed on installation jointly Hole（51）Interior locking nut（10）.

6. a kind of hydraulic control valve of bivalve sealing according to claim 1, it is characterised in that the big valve flap（6）It is By bottom plate（7）Compression is connected to flap seat（4）Bottom surface on, the inlet opening（41）Big valve flap is run through in lower end（6）And bottom plate （7）And it is connected to intake antrum（11）.

7. a kind of hydraulic control valve of bivalve sealing according to claim 6, it is characterised in that the big valve flap（6）It is One flap ring, the flap seat（4）Bottom surface, which is equipped with, supplies the big valve flap（6）Make the embedded mounting groove that coincide（44）；It is described Bottom plate（7）Middle part, which is equipped with, supplies the inlet opening（41）The perforative inner hole in lower end.

8. a kind of hydraulic control valve of bivalve sealing according to claim 1, it is characterised in that the valve seat（2）With it is small Flap（5）It is stainless steel material, flap seat（4）Material be copper, valve seat（2）With big valve flap（6）Between be soft seal, small valve Valve（5）With flap seat（4）Between be to seal firmly.

9. a kind of hydraulic control valve of bivalve sealing according to claim 1, it is characterised in that each Slow Close stream Road（42）With valve rod（31）Between angle be 60 °.

10. a kind of hydraulic control valve of bivalve sealing according to claim 1, it is characterised in that the valve seat（2）It is One cyclic structure, the valve seat（2）It is sealingly mounted at into and out of in the limbers between water cavity, valve seat（2）Top is logical equipped with being higher by Water hole and with the big valve flap（6）The sealing for constituting opening and closing in sealing contact is convex.