Flow control sleeve group
Technical field
The present invention has the flow control assembly about being applied to valve body, refers in particular to a kind of flow control sleeve group with double-layer porous sleeve.
Background technique
Valve body, then be used to control the most universal mechanical device of fluid conveying, mainly be applied in the system of fluid conveying, valve body is installed in the pipeline between fluid feed end and using end, flows to reach alter, dredge fluid formation shunting, regulate rate of flow of fluid and flow, block the functions such as fluid circulation; And when fluid during fluid delivery system is for pipeline flow need make change time, such as existing one or eight inch control valves are assembled on pipeline, and according to user demand for flow being down to four inch or less, normally change one group of new Flow characteristics control valve by current technology or set up another four inch pipeline and valve, with the demand in satisfied use, but these two kinds of modes not only constructional difficulties, and need eliminate in the lump and change or set up numerous part, resulting in high cost, is therefore problem still to be improved.
And in order to promote the effect to Flow-rate adjustment, can improve valve body further, the sleeve of individual layer is provided with in spool place wherein, adjust flux is carried out by the perforation that sleeve is offered, but the valve body of this kind of structure only can regulate fixing flow coefficient, when system is for changing Flow characteristics, still only can selects the new valve body of replacing one group or setting up new pipeline, effectively cannot improve problem.
The TaiWan, China that and for example present invention applicant proposes previously announces M419846 new patent " cage-type valve structure-improved ", it controls the flow of fluid by the structure that three layers of cage modle are overlapped, user is allowed to adjust the number of holes of fluid communication on demand, so as to reaching the function of adjust flux; But, in the structure of this case, because being driven cage modle cover knee-action by rotating shaft, the relative darker space that also needs begins the cage modle of three layers cover to launch, and when reality uses, the space in general valve body is difficult to meet the demand used, and complete effect cannot be played; Moreover this case cage modle is overlapped each layer and to be bored a hole the position offered, and also must meet certain corresponding relation, make cage modle cover group when not launching, the perforation of each layer can match, for fluid circulation, in production and use also comparatively inconvenience.
In view of this, the present inventor is special does further improvement for this little problem, with the effect making the fluid control components being applied to valve body can possess more high-quality in Flow-rate adjustment, and can be widely used in general valve body structure, make user more convenient.
Summary of the invention
The present invention mainly uses a kind of flow control sleeve group to regulate the flow of a valve body inner fluid, this valve body can include a body and a valve gap, a passage is provided with in this body, and an entrance point and an outlet end is respectively in these passage two ends, and this valve gap can be locked in this body via lock member, and be provided with a live axle.
Main purpose of the present invention is to utilize sleeve assembly adjust flux double-deck arranged side by side in this flow control sleeve group, and control negotiable the number of holes by valve plug action, effectively can control on demand and adjust flow coefficient (Cv), meeting user demand.
Another object of the present invention is to the suitable distance by keeping between double layer sleeve barrel, can avoid the perforation of offering because of hypotelorism or sleeve between sleeve cannot be corresponding and produce the problem of flow-disturbing.
Another object of the present invention is that this flow control sleeve group can be applicable in the structure of various valve body widely, and can carry out the replacement of assembly according to user demand, promotes the convenience on using.
For reaching above-mentioned purpose, flow control sleeve group of the present invention, is mainly installed in a valve body, comprises a base, one first sleeve, one second sleeve and a valve plug.Wherein, this base is ring bodies, is arranged in this passage, and between this entrance point and this outlet end; This first sleeve is generally in hollow cylindrical, and bottom is arranged in this susceptor surface, and is equipped with at least two perforation in side; This second sleeve is generally in hollow cylindrical, be arranged in this first sleeve, and bottom is arranged in this susceptor surface, and at least two perforation are equipped with in side, again, the barrel dliameter of this second sleeve is less than the barrel dliameter of this first sleeve, and the distance between this second sleeve outer wall face and this first sleeve internal face is more than or equal to 0.15 times of this first sleeve inside radius; This plug tip connects this live axle, include a first piston portion and one second piston portion, this first piston portion is arranged in this second sleeve, and be the Cylindrical object corresponding with this second sleeve inner side surface, and can along this second quill to direction move, this second piston portion is arranged between this first sleeve and this second sleeve, and be the cylinder corresponding with this first sleeve inner side surface and this second sleeve outer side surface, and can with this first piston portion in the lump along this second quill to direction move.
By said structure, when user activates this live axle, this valve plug can be driven to move up and down, by the lifting of valve plug, fluid in valve body can be flow through via in the perforation of varying number, and the position of the demand adjustment valve plug of foundation user, effectively can regulate flow velocity and the flow of outlet end, and then control flow check flow coefficient (Cv), and pass through the control of the first sleeve and the second sleeve spacing, avoid fluid by producing the problem of flow-disturbing during valve body, to reach the effect of flow control the best.
Preferably, this base in the position of relatively this first sleeve and this second sleeve respectively to upper projection one first flange and one second flange, can respectively in order to fix the position of this first sleeve and this second sleeve, the corresponding relation of each assembly of further restriction, when can avoid machinery action, position produces skew, and can promote convenience when changing sleeve.
Preferably, this base can be circular annuli.
Preferably, this valve plug comprises a top cover further, and this top cover combines with this second piston portion with this first piston portion, whereby, when this top cover is by this live axle drive lifting action, this first piston portion and the action simultaneously of this second piston portion can be driven in the lump, can be more accurate to the control of flow.
Preferably, the shape of those perforation can be circle, square ellipse etc., notably, also can be polygonal.
For effect that profit is understood technical characteristics of the present invention, content and advantage and can be reached, hereby the present invention is coordinated accompanying drawing, and be described in detail as follows with the expression-form of embodiment, and it is wherein used graphic, its purport is only the use of signal and aid illustration book, may not be actual proportions after the invention process and precisely configure, therefore should with regard to appended graphic ratio and configuration relation is not understood, the interest field limited the invention in actual enforcement, conjunction is first chatted bright.
Accompanying drawing explanation
Fig. 1 is the flow control sleeve group schematic appearance of preferred embodiment.
Fig. 2 is the flow control sleeve set of pieces exploded view of preferred embodiment.
Fig. 3 is preferred embodiment valve plug action schematic diagram ().
Fig. 4 is preferred embodiment valve plug action schematic diagram (two).
Fig. 5 is the structural representation that preferred embodiment is assembled in valve body.
Fig. 6 is preferred embodiment valve plug action schematic diagram () in valve body.
Fig. 7 is preferred embodiment valve plug action schematic diagram (two) in valve body.
[symbol description]
10 fluids control sleeve group 11 base 111 first flange
112 second flange 113 runner 12 first sleeves
13 second sleeve 14 valve plug 141 first piston portions
142 second piston portion 143 top cover 20 valve bodies
21 body 211 passage 212 entrance points
213 outlet end 22 valve gap 221 live axles
222 lock member A bore a hole.
Embodiment
Refer to Fig. 1 and Fig. 2, for flow control sleeve group schematic appearance and the element exploded view of preferred embodiment, as shown in the figure, the present embodiment flow control sleeve group 10 main structure includes base 11,1 first sleeve 12,1 second sleeve 13 and a valve plug 14.
In the present embodiment, base 11 is positioned at the bottom of flow control sleeve group 10, the general rounded ring bodies of outward appearance, namely the middle of base 11 forms a runner 113 run through, in the outer rim of base 11 upper surface and inner edge respectively on be convexly equipped with one first flange 111 and one second flange 112, respectively in order to first sleeve 12 and second sleeve 13 of positioning combination above base.
First sleeve 12 and the second sleeve 13 are the cylinder of hollow, and are equipped with at least two perforation A respectively at side; First sleeve 12 and the second sleeve 13 concentric co-axial be arranged at base 11 on the surface, and the barrel dliameter of the second sleeve 13 is less than the barrel dliameter of the first sleeve 12, and is positioned at the inner side of the first sleeve 12; Again, the bottom of the first sleeve 12 and the second sleeve 13 can be resisted against the first flange 111 and the second flange 112 of the surperficial projection of base 11, in order to fixed position, avoids producing displacement; Wherein, first flange 111 of the present embodiment is arranged at outside the first sleeve 12, the outer side surface of the first sleeve 12 bottom is made to be resisted against the first flange 111, and according to service condition, first flange 111 also can be arranged at the inner side of the first sleeve 12, makes the inner side surface of the first sleeve 12 bottom be resisted against the first flange 111, in like manner, second flange 112 can be arranged at inner side or the outside of the second sleeve 13, makes the inner side surface of the second sleeve 13 bottom or outer side surface be resisted against the second flange 112 of base 11 projection.
Valve plug 14, top, in order to be connected to a live axle, is provided with a top cover 143 below its joint, in the opposite side of top cover 143 relative to live axle, is the downside of top cover 143, is provided with first piston portion 141 and one second piston portion 142; First piston portion 141, in solid cylindrical body, be arranged at the inner side of the second sleeve 13, and the external diameter in first piston portion 141 approximates the internal diameter of the second sleeve 13, first piston portion 141 can be moved along the direction of the second sleeve 13 axis; The cylinder of the second piston portion 142 in hollow, it is between the first sleeve 12 and this second sleeve 13, and the internal diameter of the second piston portion 142 approximates the external diameter of the second sleeve 13, the external diameter of the second piston portion 142 approximates the internal diameter of the first sleeve 12, second piston portion 142 can be moved along the direction of the first sleeve 12 and the second sleeve 13 axis, again, by the connection of top cover 143, make first piston portion 141 and the second piston portion 142 concurrently-acting.
The flow control sleeve group 10 of the present embodiment, it is mainly used in the structure of a valve body equipment, and as shown in Figure 5, this valve body 20 includes body 21 and a valve gap 22.Wherein, in body 21, be provided with a passage 211, in order to provide fluid to circulate, and the two ends of passage 211, be then respectively entrance point 212 and an outlet end 213, and can the feed end of fluid be connected to respectively by body (not illustrating) and disengage end; Valve gap 22 is locked on body 21 via lock member 222, and can the opening offered in passage 211 1 avris of enclosed body 21, by this opening, allow user easily flow control sleeve group 10 can be installed in passage 211 in body 21, and base 11 is fixed on valve element position narrower in passage 211, and the valve plug 14 in flow control sleeve group 10, its top is connected to the live axle 221 in valve gap 22, by user's activated drive axle 221, valve plug 14 knee-action can be driven.Live axle 221 can be the screw rod moved up and down by turn mode, but also can by cylinder pressure or other modes expanding-contracting action.
See also Fig. 3 ~ 4 and Fig. 6 ~ 7 again, respectively about valve plug action schematic diagram in the present embodiment, as shown in Figure 3, valve plug 14 and sleeve (first sleeve 12 and the second sleeve 13) are in closed state, the perforation A that now the first sleeve 12 and the second sleeve 13 are offered cannot circulate for fluid, again as shown in Figure 4, when valve plug 14 moves up, make each perforation A open-minded gradually, make the fluid of entrance point 212 side being positioned at passage 211 can flow through the first sleeve 12 and the second sleeve 13 via those A that bores a hole and inside second sleeve 13 that arrives, because of the restriction of valve plug 14, fluid can flow to and runner 113 through base 11 flows out downwards flow control sleeve group 10, then outlet end 213 is flowed to, and by height that control valve plug 14 rises, effectively can grasp the perforation A quantity opened, control the size of flow whereby.Wherein, valve plug 14 has first piston portion 141 and the second piston portion 142 simultaneously, the fluid in flow control sleeve group 10 can be avoided to produce the flow phenomenon that cannot expect, and then can promote the working life of flow control sleeve group 10.
In like manner, in figs. 6 and 7, valve plug 14 knee-action is driven by live axle 221, Fig. 6 is the closed state that valve plug 14 is fallen, and Fig. 7 is the full-gear that valve plug rises, allow the height that user is opened by live axle 221 control valve plug 14, reach the object of control flow.
Moreover the flow control sleeve group 10 of the present embodiment, adopts the structure of double layer sleeve barrel, more existing individual layer tube-in-tube structure can have more stable outlet pressure.But, in view of the problem that can produce flow-disturbing during hypotelorism between the first sleeve 12 and the second sleeve 13, in the structure of the present embodiment flow control sleeve group 10, distance between the first sleeve 12 internal face and the second sleeve 13 outer wall is minimum is 0.15 times of the first sleeve 12 inside radius, and according to situation about using, distance between the first sleeve 12 internal face and the second sleeve 13 outer wall also can be greater than 0.15 times of this first sleeve 12 inside radius, effectively can avoid the generation of flow-disturbing situation whereby; By the perforation A that the first sleeve 12 and the second sleeve 13 are offered, its position can be non-mutual correspondence, and the perforation A of the perforation A that the first sleeve 12 is offered and the second sleeve 13, also can be the aperture of different size, allow user when outlet end 213 disengages fluid whereby, different Flow characteristics (Cv) regulating effects can be obtained, and the Flow characteristics of flow control sleeve group 10 can be controlled more accurately; Notably, by valve body 20 structure disclosed by this enforcement, user only needs to open valve gap 22, the i.e. assembly of replaceable flow control sleeve group 10, such as changes the first sleeve 12 or the second sleeve 13 of different pore size, to reach the effect meeting user demand.
In the present embodiment, each component of the perforation A that the first sleeve 12 and the second sleeve 13 are offered and flow control sleeve group 10, as base 11, first sleeve 12, second sleeve 13 and valve plug 14, though all rounded, it is also not used to limit the present patent application the scope of the claims, according to actual situation, perforation A also can be square, oval, be even other moulding of polygonal etc., and each component of flow control sleeve group 10, also can be mutually corresponding polygon structure.