CN101144544A - Opposite-clamping pore plate flow quantity adjusting valve - Google Patents

Abstract

The invention provides a wafer type orifice plate flow regulating valve, which is used for controlling the flow quantity of a high speed fluid medium, simultaneously can reduce vibration and noise, and can adjust accurately. The invention comprises a valve body, a fixed valve plate and a movable valve plate which mutually contact and match equipped in the valve body, a valve rod arranged on the movable valve, a controlling mechanism connected on the valve rod, a plurality of through holes arranged on the fixed valve plate, and a plurality of over current orifices being able to align the through holes and being arranged on the movable valve plate. The present invention has the advantages that the movable valve plate can be longitudinally moved through adjusting the controlling mechanism, thus the relative position of the movable valve plate and the fixed valve plate is further changed, the flow area is changed, and the parameters of the media flow and the pressure can be adjusted. Because the flow area firmly changes during the movable valve plate opening and closing process, the flow quantity can be accurately adjusted, and because the motion of the medium is straight line motion, the turbulent flow producing is avoided, thus the vibration of the pipe system is effectively reduced, the noise is reduced, and simultaneously the service life of the valve is prolonged.

Description

Wafer type orifice plate flow control valve

Technical field

The invention provides a kind of flow that is used to control the high-velocity fluid medium, can reduce vibration, noise simultaneously, and the wafer type orifice plate flow control valve that can precisely regulate.

Background technique

Accurate linear flow control valve is the developing direction of regulating valve always, when traditional throttle valve and butterfly valve are used as the flow control valve use, valve is subjected to stopping of valve plate in the moment of opening owing to flowing medium, airflow direction will inevitably be changed by force, therefore will inevitably produce noise and vibration, particularly for the regulating valve of high speed flow, noise and vibration are especially obvious.Simultaneously, the non-linear proportionate relationship of valve opening and circulation area so the control of existing regulating valve flow accuracy is poor, can not realize precisely control to flow at a high speed.

Summary of the invention

The technical problem that solves

The object of the present invention is to provide a kind of flow that is used for accurately controlling the high-velocity fluid medium, can reduce the wafer type orifice plate flow control valve of vibration, noise simultaneously.

Technological scheme

For achieving the above object, the present invention adopts following technological scheme:

Wafer type orifice plate flow control valve of the present invention, comprise valve body, the fixedly valve plate and the movable valve plate of contact matching are installed in described valve body, movable valve plate is provided with valve rod, be connected with operating device on the valve rod, described fixedly valve plate is provided with several through holes, and movable valve plate is provided with several several flowing holes that can align with through hole.

Described fixedly valve plate is arranged on outlet one side, and movable valve plate is arranged on inlet side.

Described several through holes are in fixedly many line segments arrangements in valve plate upper edge; Many in movable valve plate upper edge line segments of several flowing holes are arranged.

The through hole of the flowing hole that wherein aligns mutually measure-alike.

The close inlet side of described movable valve plate is provided with back-up ring.

Described through hole, flowing hole be shaped as circle, ellipse, square or triangle.

Beneficial effect

The advantage and the good effect of wafer type orifice plate flow control valve of the present invention are: among the present invention, owing to be provided with fixedly valve plate and movable valve plate, by adjusting operating device movable valve plate is moved up and down, thereby the change activity valve plate and the fixing relative position of valve plate, increase or reduce the flow area of valve, just can reach the purpose of regulating rate-of flow and pressure and other parameters.Because in movable valve plate opening and closing process, the flow area steady change is so can precisely regulate flow; Because of circulation medium keeps straight line motion before and after opening always, avoid turbulent generation, thereby reduced the vibrations of pipe-line system effectively again, reduced noise, prolonged the working life of valve simultaneously.

Description of drawings

Fig. 1 is the structural representation of wafer type orifice plate flow control valve of the present invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the structural representation of wafer type orifice plate flow control valve of the present invention when opening state;

Fig. 4 represents the present invention when opening state, fixedly the structural representation of the relative position relation of valve plate and movable valve plate;

Fig. 5 is the structural representation of wafer type orifice plate flow control valve of the present invention when semi-open state;

Fig. 6 represents the present invention when semi-open state, fixedly the structural representation of the relative position relation of valve plate and movable valve plate;

Fig. 7 is the structural representation of wafer type orifice plate flow control valve of the present invention in off position the time;

When Fig. 8 represents that the present invention is in off position, the fixing structural representation of the relative position relation of valve plate and movable valve plate.

Embodiment

Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.

Referring to Fig. 1, Fig. 2.Wafer type orifice plate flow control valve of the present invention comprisesvalve body 1, fixedlyvalve plate 2,movable valve plate 3 and operating device 5.Wherein fixedlyvalve plate 2 is fixedly mounted in thevalve body 1, andmovable valve plate 3 can be installed in thevalve body 1 up or down.Movable valve plate 3 andfixing valve plate 2 contact matching.Movable valve plate 3 is provided withvalve rod 4, andvalve rod 4 stretches out outside the valve body, and with operating device 5.Close inlet side atmovable valve plate 3 is provided with the back-upring 8 that seals.

Describedoperating device 5 can be selected existing any structure for use, as hydraulic type, pneumatic-typed, mechanical type or electrodynamic type etc., as long as can move up and down by drive activity valve plate 3.Fixedlyvalve plate 2 is provided with several throughholes 6, and these throughholes 6 with convenient processing, also can be arranged in other shapes in fixedly many line segments arrangements invalve plate 2 upper edges, and the shape in each hole also can be circular, oval, square or triangle.Movable valve plate 3 is provided with several flowingholes 7, many inmovable valve plate 3 upper edges line segments of these flowingholes 7 are arranged, also can be arranged in other shapes, but its arrangement mode is consistent with the arrangement mode of several throughholes 6 on thefixing valve plate 2, to guarantee, after moving on themovable valve plate 3, can align with corresponding through hole 6.The shape of flowinghole 7 also can be circular, oval, square or triangle.Among the present invention, the size of flowinghole 7 and throughhole 6 measure-alike.Fixedlyvalve plate 2 among the present invention is arranged on outlet one side, andmovable valve plate 3 is arranged on inlet side.Bemovable valve plate 3 at the fixing upstream side ofvalve plate 2, under the effect of hydraulic pressure, makemovable valve plate 3 and fixedlyvalve plate 2 more closely fit, thereby make the sealing of valve plate more reliable.

Extremely shown in Figure 8 as Fig. 3, pressure regulation process of the present invention is: several throughholes 6 on several flowing holes on the movable valve plate 37 andfixing valve plate 2 are one by one to timing (seeing Fig. 3, Fig. 4), wafer type orifice plate flow pressure regulating valve of the present invention is the complete opening state, at this moment, coal gas stream is passed through by throughhole 6 and flowinghole 7 with certain flow.Makemovable valve plate 3 with respect to fixedly moving on thevalve plate 2 when adjustingoperating device 5, thereby flowinghole 7 and throughhole 6 are no longer aligned, but when staggering certain distance (seeing Fig. 5, Fig. 6),valve plate 2 blocks because a part of flowinghole 7 is fixed, so the flow by throughhole 6 and flowinghole 7 reduces, pressure increases.Whenmovable valve plate 3 is moved on continuing with respect to fixingvalve plate 2, flow by throughhole 6 and flowinghole 7 just advances to go up the step and reduces, when claiming to be fixedvalve plate 2 fully when blocking (seeing Fig. 7, Fig. 8) to flowinghole 7 on themovable valve plate 3, wafer type orifice plate flow control valve of the present invention is closed fully.

The inventor designs this product and starts with from structure, changes traditional Design Mode, the innovation valve mechanism, reach accurate adjusting and control, make the present invention can regulate flow, can cut off the flow direction of medium again the high-velocity fluid medium, make a product, finish multinomial function.

More than be preferred forms of the present invention, according to content disclosed by the invention, some identical, replacement schemes that those of ordinary skill in the art can expect apparently all should fall into the scope of protection of the invention.

Claims (7)

1. wafer type orifice plate flow pressure regulating valve, comprise valve body (1), it is characterized in that in described valve body (1), being equipped with the fixedly valve plate (2) and the movable valve plate (3) of contact matching, movable valve plate (3) is provided with valve rod (4), be connected with operating device (5) on the valve rod (4), described fixedly valve plate (2) is provided with several through holes (6), and movable valve plate (3) is provided with several several flowing holes (7) that can align with through hole (6).

2. wafer type orifice plate flow pressure regulating valve as claimed in claim 1 is characterized in that described fixedly valve plate (2) is arranged on outlet one side, and movable valve plate (3) is arranged on inlet side.

3. wafer type orifice plate flow pressure regulating valve as claimed in claim 1 or 2 is characterized in that described several through holes (6) are in fixedly many line segments arrangements in valve plate (2) upper edge; Many in movable valve plate (3) upper edge line segments of several flowing holes (7) are arranged.

4. wafer type orifice plate flow pressure regulating valve as claimed in claim 3 is characterized in that the measure-alike of the flowing hole (7) that aligns mutually and through hole (6).

5. wafer type orifice plate flow pressure regulating valve as claimed in claim 3 is characterized in that the close inlet side of described movable valve plate (3) is provided with back-up ring (8).

6. wafer type orifice plate flow pressure regulating valve as claimed in claim 5, what it is characterized in that described through hole (6) is shaped as circle, ellipse, square or triangle.

7. wafer type orifice plate flow pressure regulating valve as claimed in claim 6, what it is characterized in that described flowing hole (7) is shaped as circle, ellipse, square or triangle.

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