CN2615713Y

CN2615713Y - Flow regulator

Info

Publication number: CN2615713Y
Application number: CN 03240080
Authority: CN
Inventors: 周敬训
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-10
Filing date: 2003-03-10
Publication date: 2004-05-12
Anticipated expiration: 2013-03-10

Abstract

The regulating device provides a flow quantity regulating device for the flow quantity deploying of down-hole layered water injection, which comprises an insulating plunger 1, magnetic valves 2 and 3, package packing spools 4 and 5, and valve body 6. A slotted hole 7 is arranged on the valve body 6 and the cavities a, b, c are filled with oil. The insulating plunger 1 prevents the eyelet from being blocked up by the impurity in the working fluid. The spool 5 is moved down when the magnetic valves 2 is open and the magnetic valves 3 is closed. When the magnetic valves 2 is closed and the magnetic valves 3 is open, the relative position is changed between the spool 4 and spool 5, differentiation is formed, and the result is that the spool 5 is moved upward. The device is able to realize unidirectional or bidirectional adjustment.

Description

A kind of flow regulator

Described technical field:

The utility model belongs to automation field, and a kind of flow regulator is provided, and is used for the flow allocating of oil field laminated distributor under well water filling.

Technical background:

Because of adopting the mode that motor slows down to be difficult to overcome problems such as power supply, physical dimension, reliability, still adopt at present and change fixedly latus rectum water and chew and try method of completing the square repeatedly, labour intensity is big, operating cost is high.

Summary of the invention:

The purpose of this utility model provides a kind of pressure that utilizes down-hole liquid itself as power source, and device simple and reliable for structure has solved the problems referred to above effectively.

Flow regulator provided by the utility model, by the spool 4 of separator piston 1, solenoid valve 2 and 3, suit and 5 and the side valve body 6 that has a slotted hole 7 form, in chamber a, chamber b, chamber c, charge into clean oil; Chamber a to chamber b, chamber b to linking to each other with throttle orifice 9 by throttle orifice 8 respectively between the c of chamber, during solenoid valve 2 energisings, chamber a communicates to chamber b; During solenoid valve 3 energising, chamber b communicates to chamber c.By changing the relative position of spool 5 and valve body 6, change the flow area of slotted hole 7 on the valve body 6, realize the adjusting of flow; Spool 4 and 5 displacement are by the length and the size decision of throttle orifice conduction time of solenoid valve 2 and 3.

Import and export fluid pressure and be respectively P1, P2, each position effective pressure active area is respectively S1, S2, S3, and said structure satisfies P1*S1 greater than P2*S3, area S3 greater than S2, S1 greater than S3.For the impurity that prevents down-hole liquid stops up aperture, isolate with separator piston 1, pressure is passed to the clean medium (oil) in a chamber.When solenoid valve 2 unlatchings, when solenoid valve 3 cuts out, the pressure of down-hole liquid promotes separator piston 1 and moves down, the oil in a chamber is pressed into the b chamber by corresponding throttle orifice 8, promoting spool 4 moves down, because this moment, solenoid valve 3 cut out, the oil in c chamber is plugged, so spool 5 and spool 4 move down synchronously, makes that effective aperture of slotted hole diminishes on the valve body 6; When solenoid valve 2 cuts out, when solenoid valve 3 is opened, the oil in c chamber is pressed into the b chamber, moves on the spool 5, simultaneously, because the oil in b chamber increases, solenoid valve 2 cuts out, spool 4 moves down and drives spool 5 and moves down.But because of S1 greater than S2, move the move down speed of speed on the spool 5 greater than spool 4, form differentially, consequently move on the spool 5, effective aperture of valve body 6 becomes big.When the oil in c chamber all is pressed into the b chamber, the last transposition section end of spool 5; When spool 4 walked to lower dead center, all adjustment process finished, and during this period, flow can be regulated repeatedly.When design, add the stroke of big valve core 4 and 5, can effectively expand adjustment process, to satisfy technological requirement.Choose reasonable area S1, S2, S3 parameter reduce the pressure reduction at throttle orifice two ends and dwindle oil that measure such as orifice dimensions can make the oil in a chamber enter b chamber or c chamber that to enter the speed in b chamber slower, and making has the enough reaction time to improve the bearing accuracy of spool 5.

The utility model utilizes the pressure of down-hole liquid itself as power source, only need provide faint electric energy just can realize adjusting the purpose of flow, and simple and reliable for structure, power consumption extremely low (available powered battery), volume are also very little, can satisfy down-hole particular surroundings, structure and technological requirement.

Description of drawings:

Fig. 1, be the structural drawing of the utility model embodiment one;

Embodiment:

Below in conjunction with accompanying drawing brief description is done in enforcement of the present utility model: solenoid valve 2 and 3 adopts the electromagnet of band spring reset, opens during energising, closes voluntarily during dead electricity.Figure one is depicted as the flow regulator that can realize the flow bidirectional modulation, in the time need only carrying out unidirectional adjusting, throttle orifice 9 is stopped up, and spool 4 and spool 5 are rigidly connected, and are equivalent to make solenoid valve 3 to be in closed condition always.

Claims

1. flow regulator, it is characterized in that: the valve body (6) that is had slotted hole (7) by the spool (4) of separator piston (1), solenoid valve (2) and (3), suit and (5) and side is formed, and charges into clean oil in chamber (a), chamber (b), chamber (c); Linked to each other with throttle orifice (9) by throttle orifice (8) respectively between chamber (a) to chamber (b), chamber (b) to chamber (c), during solenoid valve (2) energising, chamber (a) (b) communicates to the chamber; During solenoid valve (3) energising, chamber (b) (c) communicates to the chamber.