Liquid constant current amount automatic control tegulatingdevice
Technical field
The utility model relates to a kind of self-regulating device of constant current amount in the liquid communication pipe network that is exclusively used in, belong to flow regulator or valve class.
Background technique
In the prior art, the Flow-rate adjustment of fluid realizes by dedicated regulation valve, as shown in Figure 1, among Fig. 1, the liquid body pressure effect of spool, another side is the effect of spring by compression, spool moves along valve rod under fluid pressure and spring acting in conjunction, by the gap between the inverted cone liquid entering hole that changes spool and valve body, change the flow resistance of liquid, keep the constant relatively of flow.But the valve of this flow constant speed only is applicable to the fluid of big flow and flows, and its structure relative complex, and flow control accuracy is difficult to improve, and Applicable scope is little, and manufacture cost is also than higher.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned existence, and a kind of influenced by the fluid incoming pressure little and design, and can keep water flow constant automatically, the liquid constant current amount automatic control tegulatingdevice that constant-current control accuracy is high.It has a mobile cavity that is connected on pipeline or the valve, and the liquid outlet channel mouth in the cavity is provided with the flexible deformation component who has the runner hole.
The side that described flexible deformation component goes up near the liquid outlet channel mouth is provided with inside caveli.
Runner hole on the described flexible deformation component is arranged on axial intermediate portion.
The described cavity of the utility model is provided with the adjusting head, and the liquid outlet channel mouth in the middle of facing, and at a distance of nearer.
The utility model is provided with the adjusting head in flexible deformation component's centre, and stretches on the liquid outlet channel mouth of cavity taper.
Described flexible deformation component's centre is provided with the adjusting head, and with the liquid outlet channel mouth of cavity taper at a distance of nearer, the runner hole on the flexible deformation component is opened in the caveli that adjusting goes up in front.
The runner hole that is provided with in the described flexible deformation component is formed for the radial groove that the edge axial groove is communicated with on end face.
The utility model both can have been set up separately and specially be assigned in the fluid flow pipeline, also can be used in combination with configuration of valve such as solenoid valve or specialized designs, be characterized in that inlet pressure fluctuates in quite wide scope, can both keep rate of discharge and keep constant, its design principle is the continuity equation Q=AV according to flow.Flow-rate adjustment element in the liquid inlet pressure surge, cavity changes actual internal area A automatically, causes the variation of water flow velocity V with the compensatory pressure difference.Be that inlet pressure P is big more, the rate of flow of fluid V in the chamber is also big more, and then effectively actual internal area A becomes more little, and the AV product is maintained constant.Otherwise pressure P is little, and then flow velocity V variable quantity is little, and valid circulation area A variable quantity is also little, and the AV product is still kept constant, so, no matter becoming, inlet pressure diminishes greatly, this device all can keep the invariable of outlet port fluid flow.It compared with prior art has simple and reasonable for structurely, and volume is small and exquisite, control is convenient, low cost of manufacture can be widely used in various liquid quantitative discharging occasions, as large-scale refrigerator, the refrigerator water filling, washing machine inflow, the water heater current quantitatively discharge, and fish jar, pond are irritated automatically and are put, the bathtub scouring water are irritated automatically and are put, and soya-bean milk, milk, drinks be discharging or the like characteristics quantitatively.
Description of drawings
Fig. 1 is a prior art---the structural representation of flow control valve.
Fig. 2 is the structural representation that the utility model and solenoid valve are combined as a whole.
Fig. 3 is embodiment's 2 structural representations of the present utility model.
Fig. 4 is embodiment's 3 structural representations of the present utility model.
Fig. 5 is embodiment's 4 structural representations of the present utility model.
Fig. 6 is embodiment's 5 structural representations of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: Figure 2 shows that the apparatus structure schematic representation that the utility model and solenoid valve are combined into one, the structure content of solenoid valve is same as the prior art substantially, it includes valve body 1, and the valve pocket in the valve body 1 is provided with the spool 2 that constitutes with core iron.Valve port 3 in the valve pocket faces spool 2, the water outlet 4 of ining succession under it.The top of valve body 1 is provided with electromagnetic coil 5, opens and closes so that realize the electromagnetism of valve.Side at valve pocket is provided with the cavity 7 that another is connected by liquid outlet channel mouth 6, is provided with the flexible deformation component 9 who has runner hole 8 near liquid outlet channel mouth 6 in this cavity 7.Be positioned at a side of liquid outlet channel mouth 6 on the described flexible deformation component 9, be provided with inside caveli 10, position offers a shaft orientation flowing channel hole 8 in the middle of it.Be fixed with one and regulate 11 in valve pocket, the head of this adjusting 11 is close to runner hole 8, and forms cross section, an annulus.Its working procedure is: electromagnetic coil 5 energisings of solenoid valve, and the spool 2 of core iron shape is magnetized and sucts, and solenoid valve is in open mode.The route of fluid is: enter cavity 7 from the ingress, the flexible deformation component's 9 that flows through short and small runner hole 8, again through regulate 11 and cavity between the annulus, enter valve pocket, the valve port 3 by valve body 1 protrudes out flows out after the inverted cone valve port is adjusted fluidised form again.Electromagnetic coil 5 outages, spool 2 falls under the acting in conjunction of liquid internal pressure and spring, and the embedded rubber pad in spool 2 underparts is sealed valve port 3, closed electromagnetic valve.The utility model also can be designed to an independent device separately, links to each other and supporting use with independent solenoid valve then.The said structure design, make fluid pass through multiple tracks throttling step-down, fluid is one 90 degree bent angle in cavity, flexible deformation component 9 short and small runner hole 8, regulate 11 and the liquid outlet channel mouth between the annulus, the valve port 3 that protrudes out in the valve pocket, the elongated hole of valve port 3, the inverted cone of birdsmouth adjusts the current attitude, discharge pressure is descended, and flow velocity is steady.The Flow-rate adjustment element has been served as in adjusting on flexible deformation component 9 described in the utility model and the valve body 1 11, the flexible deformation component 9 that runner hole 8 is arranged in the utilization, experience hydrodynamic pressure and produce distortion, the aperture cross-sectional sizes in runner hole 8 changes, the change in flow that the compensation inlet pressure causes plays the constant flow regulating action.Flexible deformation component's 9 form structure indents, hollow out and help deformation adjustment; Fluid pressure makes flexible deformation component 9 that axial deformation take place simultaneously, and with adjusting 11 variable in distance, the runner holes 8 in the flexible deformation component 9 change with a fixed adjusting cross section, 11 looping slit, play the constant regulating action of auxiliary flow.
Figure 3 shows that the structural representation of independent design of the present utility model, it is to be provided with the flexible deformation component 9 who has runner hole 8 near liquid outlet channel mouth 6 in cavity 7.Be positioned at a side of liquid outlet channel mouth 6 on the described flexible deformation component 9, be provided with inside caveli 10, in the middle of it position offer one axially with the combined flow channel hole 8 that radially is connected.Axial flow of fluid pressure makes radially short and small opening 8 be easy to generate distortion, and cross-sectional constriction changes, and the change in flow that compensatory pressure causes plays the constant flow rate regulating action.
Fig. 4 is another embodiment of the present utility model, what it was different with last embodiment is: in the centre of flexible deformation component 9 caveli 10, face liquid outlet channel mouth 16 and be provided with the adjusting that protrudes out 11, and its end also can be stretched in exhalant canal mouth 6, make to regulate 11 and liquid outlet channel mouth 6 between be formed with the circular crosssection, this cross section changes along with between the two variable in distance.The combined flow channel hole 8 that described flexible deformation component go up to be provided with is positioned to be regulated on 11 the limit, also by axially and the radial passage form.The effect that is subjected to hydrodynamic pressure owing to flexible deformation component 9 is out of shape, impel combined flow channel hole 8 and regulate 11 and liquid outlet channel mouth 6 between the variation of circular crosssection, play the regulating action of constant flow rate.Equally, flexible deformation component 9 form structure indent hollows out and helps deformation adjustment.
Fig. 5 is another embodiment of the present utility model, and it is to be provided with the flexible deformation component 9 who has runner hole 8 near liquid outlet channel mouth 6 in cavity 7.Described runner hole 8 is to be combined by the radial groove that the axial groove at edge is communicated with at end face, it is positioned at a side of liquid outlet channel mouth 6 on flexible deformation component 9, also be provided with inside caveli 10, hydrodynamic pressure makes flexible deformation component's axial deformation, and push between the cavity, the cross section that hollows out, promptly inside caveli changes, thereby plays the effect of constant flow rate.
Fig. 6 is another embodiment of the present utility model, and what it was different with preceding several embodiments also is on the regulation structure of constant flow rate, and it is to be provided with the flexible deformation component 9 who has runner hole 8 near liquid outlet channel mouth 6 in cavity 7.Be positioned at a side of liquid outlet channel mouth 6 on the described flexible deformation component 9, be provided with inside caveli 10, position is provided with an adjusting that protrudes out 11 in the middle of it, and neutral position offers an axial runner hole 8 on it.An adjusting that protrudes out 11 is stretched in the passway 6 of cone-shaped, hydrodynamic pressure makes and to have flexible deformation component's 9 axial deformations that the adjusting that protrudes out 11, centre have runner hole 8, regulating 11 pushes with the liquid outlet channel mouth 6 of cone-shaped, runner hole 8 outlet end cross-sectional constriction in the flexible deformation component 9 are diminished, pressure is big more, shrink aggravation, play constant regulating action.