CN2469254Y - State sealing and remote control valve - Google Patents

Abstract

The utility model discloses a static sealing remote valve, which comprises a valve body, a valve cover and a remote-control signal reception device; when the reception device receives a valve open or close order, it sends open signals to the electric motor, through the drive of the driving device, the external magnetic steel block guide sleeve provided in the valve cover moves up and down, the lower end of the guide sleeve is provided with an external magnetic steel block which is connected with an internal magnetic steel block in the guide sleeve, through which the needle valve integrated with the internal magnetic steel block can detach from the piston in the valve or touch the piston once again so as to achieve the open and close of the valve. The utility model realizes the remote control and simple structure, safe and reliable and has a long service life.

Description

Remote-controlled valve with static sealing

The utility model relates to remote-controlled valve with static sealing.

In the course of conveying of gas or liquid,, need a large amount of valves, with the flow direction and the flow of control gaseous or liquid particularly in oil and chemical industry.The valve of prior art is that the way that adopts rubber seal and valve operation handgrip to be close to seals, and operator open or close by the operator handle.But this rotary type sealed valve after repeatedly rotating operation opens and closes, tends to make the rubber seal wearing and tearing, causes forming the gap between Sealing and the operator handle, causes gas or leak of liquid in the pipeline.If transmission is harmful gas or liquid in the pipeline, not only leave a legacy of trouble to safety, befouling environment, and also will cause damage economically.In order to change above-mentioned defective, the claimant discloses a kind of " Electromagnetically driven valve " in the Chinese patent application 99217805.3 on August 9th, 1999, this actuating valve is realized the open and close of valve by the moving internal activity magnetic barrier of external magnetic endless belt, thereby eliminates because the unlatching of valve or close the defective that causes the Sealing that weares and teares.But for large-scale petrochemical iy produced enterprise, the valve of use is hundreds and thousands of, and therefore very dispersion again only opens by above-mentioned valve or throttle down is inconvenient.Especially circuitously go up accident, and the liquid that transmits in the pipeline or gas are influential to human body, in addition harmful, and above-mentioned valve is also difficult to deal with.

Therefore, the purpose of this utility model is to provide a kind of remote-controlled valve with static sealing that can overcome the prior art defective.

Above-mentioned purpose of the present utility model solves by following proposal.

Comprise a valve body according to remote-controlled valve with static sealing of the present utility model, a valve gap and a device that receives external Remote signal.Has a piston in the described valve body, an input channel and an output channel.Described valve gap and valve body seal each other, one outer steel piece guide pin bushing is arranged in it, there is the outer steel piece lower end of described guide pin bushing, magnetic steel ingot in one is arranged in the guide pin bushing, with interior magnetic steel ingot one have one towards and can form needle-valve and the drive unit that the driving guide pin bushing moves up and down of sealing relationship with piston.The device of the external Remote signal of described reception can be wired, also can be wireless, or infrared.Reception unit can be contained in the valve gap, also can be contained in the outside of valve.When reception unit receive opening of valves or the instruction of closing after, send the motor starting signal to drive unit.Motor drives guide pin bushing by drive unit and moves up or down, the motion of guide pin bushing makes the upper and lower motion of outer steel piece of its lower end, thereby the interior magnetic steel ingot that meshes with outer steel piece magnetic is also moved up and down, thereby make needle-valve disengage or contact again with piston space.In this way the former, valve will be opened, the latter in this way, valve will cut out.

Compared with the prior art have the following advantages according to remote-controlled valve with static sealing of the present utility model:

The first, remote-controlled valve with static sealing of the present utility model is by wired, wireless or infrared realization distant control, therefore, can manage concentratedly them.This valve is particularly useful for the industry of production system automation, and for example, petrochemical industry can be by production technology, and operating mode realizes monitoring to the working state of valve.

The second, because the unlatching of valve or to close be to carry out under the effect of permanent magnetic field, and experiment showed, that the outer steel piece only needs the motor of 6V to promote, and therefore thoroughly changed traditional manpower and opened or throttle down, reach safety labor-saving.On the other hand, because control, the actuator of valve are interior root of Dahurian angelica formulas, by contactless magnetic field transferring power, because the open and close of valve are to be under the standstill seal state to carry out, the frequent closure or openness of valve of having stopped prior art destroy the leakage that seals and cause.Simultaneously, also prolong the life-span of valve, reduced the cost of system.

The 3rd, owing to adopt the long distance remote control,, can avoid the maintenance man to remove on-the-spot throttle down in case occur under the situation of harmful gas or leak of liquid, reduce or eliminate the appearance of contingency.

Above-mentioned purpose of the present utility model and other purpose and advantage thereof will be more readily apparent from by the detailed description below in conjunction with the accompanying drawing illustrated embodiment, and accompanying drawing has:

Fig. 1 is the sectional view according to remote-controlled valve with static sealing of the present utility model;

Fig. 2 A and Fig. 2 B adopt the sender unit of wireless messages transmission means and the circuit theory diagrams of reception unit.

At first, illustrate according to remote-controlled valve with static sealing of the present utility model with reference to Fig. 1.It comprises that is an inverted T font valve body 1, and by direction as shown, the right side is the import of valve, and the left side is outlet.A valve gap 40 that is tightly connected with it by seal ring 11,22 and valve body capping 12 is arranged on the valve body 1, a reception unit 17 that is used to receive external remote signal is housed in the valve gap 40.

Described valve body 1 has a semicircle 1a of partition at its side lower part that takes over, and the top of the side of taking back has a semicircle and cuts off 1b, and the level between connection two cuts off is cut off part and had a penetration hole 1c.Above the penetration hole in the middle of the valve body 1 piston 1d is housed, the shank of piston 1d is a valve pad frame 5, and the cross section of valve pad frame 5 is I-shaped, and there is a center hole centre.The lower end of valve pad frame 5 connects a position shelf 2, therebetween with valve pad 3 sealings.The through hole 1C of the outside diameter of position shelf 2 and valve body 2 is adaptive, when valve is in closed condition (as shown in the figure), by position shelf 2 and valve pad 3 gas or liquid can not be passed through thus.The shank of piston 1d, promptly the upper side of valve pad frame 5 is by netted valve gap 12 and sealing gasket 8 sealings.The center hole of valve pad frame 5 seals by the following needle-valve 13 that describes in detail with by the sealing gasket 9 that compressing tablet 10 usefulness housing screws 21 compress when valve is in closed condition.

Continue 1 explanation valve gap 40 below with reference to figure.The profile of valve gap 40 is mitriform.It fuses by bolt 23 and valve body 1, therebetween by valve body capping 12, sealing gasket 11 and seal ring 22 sealings.A needle-valve 13 that can move up and down in valve body capping 12 is arranged in the valve gap 40, and its upper end connects magnetic steel ingot 18 in.Valve body capping 12 outsides are an outer steel piece guide pin bushing 32, and the lower end of guide pin bushing is the outer steel piece 16 of an annular, it with interior magnetic steel ingot 18 between form magnetic and be connected.The outer rim of guide pin bushing 32 has screw thread, and it is meshed with nut 31.Nut 31 fuses with gearwheel 29 again.Pressing plate 30 and support 27 are fixed in the valve gap 40 by screw 28, its role is to the support of the circuit board 17 of the support as drive unit, the reception unit that receives extraneous signal and accessory drive.Retarder 20 on motor 33 and the output terminal thereof is consolidated on the fixing frame 35 in the valve gap 40 by screw 34.Small gear 19 on retarder 20 output shafts is meshed with aforesaid gearwheel 29.Upper and lower limit bit switch 25 is contained in the valve gap 40 by limiting bracket 24 usefulness screws 26.

One side of valve gap 40 has one to be used for electric connection line is connected to hole 15 in it, this Kong Youyi sealing gasket 14, and it plays the fixedly effect of electric connection line and sealing.Electric connection line comprises the circuit to circuit board 17 power supplies of motor 33, the reception unit that receives extraneous signal and accessory drive.As reception unit is to adopt wired connection, should comprise signal transmssion line.

In addition, a screw 36 that is used to lift valve is arranged at the top of valve gap 40.

Launcher and reception unit referring now to Fig. 2 A and 2B explanation Wireless remote control.

At first, with reference to Fig. 2 A, when the opening of valves in a remote control distant place, press the K switch 1 of launcher, connect decoding and coding device U1, the signal that K1 sends is encoded by contact 11, after contact 17 inputs are amplified by transistor N1, capacitor C 1-C4, resistance 12 vibrations, launch by loop antenna.

Equally, when cut-off valve, as long as press K switch 2, signal is launched as in the previous.K switch 3, K4 are as backup.

Referring now to Fig. 2 B.Launcher emission opening of valves or shutdown signal are received by the antenna of reception unit, and demodulation by decoder PT2272 output control motor 33 forward or reverse, opens or closes valve after transistor D2 and amplifier RES2 two-stage are amplified.

Obviously, above-mentioned signal can be by wire transmission.

According to an embodiment of the present utility model.The opening and closing of control valve also can be controlled by infrared rays, and in this case, the infrared signal receiver that the reception control valve is opened or closed should be contained on the shell of valve gap 40.

The operating process of explanation present embodiment now.

The operating process of opening of valves at first, is described.When reception unit 17 is received the instruction of opening valve that control centre sends by launcher, reception unit 17 sends the actuating signal that a motor 33 is worked after receiving this instruction, motor 33 startings, rotate through speed changer 20 driving pinions 19 and gearwheel 29, because nut 31 is one with gearwheel 29, therefore, outer steel piece guide pin bushing 32 is moved upward, because in, the interaction of outer steel piece 18.16, needle-valve 13 breaks away from the center hole of valve pad frame 5, thereby make valve pad frame 5 epicoeles form path by the water chamber of center hole and valve body 1, valve pad frame 5 epicoeles are unstowed, under the effect of air inlet or fluid pressure, make valve pad 3 and position shelf 2 break away from the penetration hole 1C of valve body 1, valve is opened.The amplitude that outer steel piece 16 rises is determined by the upper limit position switch on the circuit board 25.

The following describes the operating process that valve cuts out.Receive the instruction of the cut-off valve that control centre sends by launcher when reception unit 17, reception unit 17 is received the signal that sends a motor back-to-back starting after this instruction, motor 33 startings, through speed changer 20 actuation gears 19 and gearwheel 29 backward rotation, thereby by nut 31 outer steel piece guide pin bushing 32 is moved downward, because the interaction of inside and outside magnetic steel ingot 18,16, needle-valve 13 moves downward, the center hole of draught excluder poppet 5, and promote it and move downward.Lower position switch on circuit board 25, valve pad frame sealing this moment through hole 1C.Simultaneously, enter the gas of valve or the liquid center hole by filter screen 6 and screen holder 7 and inject,, thereby strengthen closing pressure, guarantee to close valve and tightly do not have leakage because the effect of sealing gasket 8 increases upper cavity pressure to valve pad frame epicoele.Finish thus and close the valve operation.

The claimant has made detailed description with regard to design of the present utility model and embodiment; the professional and technical personnel can make various conversion and improvement on this basis; but these conversion and improvement all do not break away from spirit of the present utility model, all in the protection domain that claims limited.

Claims (5)

1, a kind of remote-controlled valve with static sealing is characterized in that comprising a valve body, a valve gap and a device that receives external Remote signal, wherein:

Described valve body has an input channel, an output channel and a piston;

Described valve gap and described valve body seal each other, an outer steel piece guide pin bushing is arranged in it, there is an outer steel piece lower end of guide pin bushing, magnetic steel ingot in one is arranged in the guide pin bushing, one with interior magnetic steel ingot one towards piston and can form needle-valve and the drive unit that the driving guide pin bushing moves up and down of sealing relationship with it;

The device of the external Remote signal of described reception, this device receive opening of valves or close after, send the activating signal of motor work to described drive unit.

2, according to the described static remote control envelope valve of claim 1, a side lower part that it is characterized in that the input channel of described valve body has semicircle the partition, one upper lateral part of output channel has semicircle the partition, and the level partition that connects between two partitions partly has a penetration hole; Described piston is positioned at the penetration hole top in the middle of the valve body, comprises a valve pad frame, and there is a center hole centre of frame, and there is a position shelf lower end, and a valve pad is arranged therebetween, and the outside diameter of described position shelf and described penetration hole are adaptive; The upper end of described center hole and described needle-valve can form sealing relationship; Described valve pad frame is equipped with a screen holder that contains filter screen in the one side;

Form sealing by valve body capping and pad between described valve gap and the valve body, described needle-valve is positioned at the valve body capping, there is magnetic steel ingot in its upper end, the outer steel piece guide pin bushing of the outside of valve body capping for moving up and down, the outer steel piece is equipped with in its lower end, inside and outside magnetic steel ingot constitutes magnetic and connects, drive unit comprises a motor and transmission device, described motor is worked under the actuating signal that reception unit sends, move up and down through the described guide pin bushing of actuator drives, magnetic engagement through inside and outside magnetic steel ingot drives described needle-valve action, thereby realizes the switch of valve.

3,, it is characterized in that described reception unit is one to be built in the radio receiver in the valve gap according to the described remote-controlled valve with static sealing of claim 1.

4,, it is characterized in that described reception unit is one to be built in the wired reception unit in the valve gap according to the described remote-controlled valve with static sealing of claim 1.

5,, it is characterized in that described reception unit is one to place the infrared remote receiver on the valve gap shell according to the described remote-controlled valve with static sealing of claim 1.

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