CN1563762A

CN1563762A - ANtitheft monoflow valve

Info

Publication number: CN1563762A
Application number: CN 200410023847
Authority: CN
Inventors: 柴福亮; 赵维恭; 王金亮; 吴云铎; 高树林; 刘金
Original assignee: 吴云铎
Priority date: 2004-03-25
Filing date: 2004-03-25
Publication date: 2005-01-12
Anticipated expiration: 2024-03-25
Also published as: CN100335831C

Abstract

The anti-theft monoway valve is one kind of mechanical product for controlling the flow mode of raw oil and other liquid in petroleum industry so as to prevent theft. It consists of unidirectional flow control part, flow rate control part and anti-theft part mainly. The unidirectional flow control part consists of valve seat, control valve and spring; the flow rate control part consists of lead screw, lead screw seat, lead screw sleeve and lead screw sleeve sealing seat; and anti-theft part is installed in the end of the lead screw of the flow rate control part and has sealing barrel around the lead screw axis with anti-theft cipher lock.

Description

Antitheft single current valve

One, technical field:

The invention belongs to a kind of engineering goods, relate to the crude oil of petroleum industry or a kind of anti-theft control device of other liquid type of flow in flow process.

Two, background technique:

One-way valve miscellaneous in the market, valve, valve for guarding against theft, but function singlenesses all.And market in urgent need a kind of can be with one-way valve, General valve, have an antitheft function device that rolls into one simultaneously.This product of current shortage.In the crude oil production process, a lot of local owing to poor public order, the lawless person is often taken place cut off quiet mouthful of petroleum pipeline stolen case.After the well head pipeline cuts off not only the oil of oil well leak, the crude oil of other oil well also can backflow in a large number in the oil gathering station.In order to reduce the loss of this class, on the flow process pipeline, be badly in need of a kind of simple in structure, antitheft single current valve of being convenient to install.In addition a lot of occasions, technology all require crude oil or other liquid at a certain pressure state order side to flowing, and discharge value controlled amount until closing, has the product of anti-theft feature simultaneously.

Three, summary of the invention:

According to above-mentioned situation, the purpose of this invention is to provide a kind of antitheft single current valve.Solve and play antitheft effect in normal operation again.It mainly is made of to FLOW CONTROL part, flow control part and guarding portion folk prescription.1, folk prescription partly is installed in the inwall place of this device portal direction to FLOW CONTROL, and it mainly is made of a valve seat and control valve, spring; 2, the flow control part mainly is made of leading screw, leading screw seat and screw set and screw set sealing seat, carries out flow control by the distance of regulating leading screw and valve seat end face; 3, guarding portion: at the leading screw end face of flow control part, along leading screw axis extension sealing drum is installed, the cipher anti theft tapered end is installed in the sealing tube, the concrete structure of this cipher anti theft tapered end is the technology that adopts patent No. ZL02213859.5.

Beneficial effect of the present invention is simple in structure, complete function, energy consumption is little, flow is big, be convenient to install, in light weight, good anti-theft effect.

Four, description of drawings:

As figure is structural representation of the present invention.

Among the figure 1, housing, 2, valve seat, 3, sealing surface of seat, 4, control valve valve body, 5, spring, 6, the valve body end face, 7, the saturating body groove of control valve valve body level, 8, the control valve sealing surface, 9, the control valve sealing surface places the groove of seal ring, 10, saturating body groove tail end, 11, leading screw, 12, the leading screw seat, 13, screw set, 14, the screw set sealing seat, 15, the screw set operating end, 16, lock groove, 17, sealing drum

Five, mode of execution:

As seen from the figure, folk prescription is to the FLOW CONTROL part, inner wall housing 1 place in the device portal direction, one-way valve valve seat 2 is installed, and these one-way valve valve seat 2 one sides are made as the sealing surface 3 on inclined-plane, also are the pod apertures of one-way valve, the upper end sealing surface 8 of control valve 4 also is made for an inclined-plane, cooperate with the sealing surface 3 of valve seat 2, and be shaped on a groove 9 in the intermediate portion of the sealing surface 8 of control valve 4, can built-in O-ring seal.Control valve valve body 4 is cylindrical-shaped structures, its substantially horizontal above saturating body groove in two roads 7 fluid passage when opening as valve body that evenly distributes.Spring 5 is housed in the control valve valve body 4, and spring 5 one ends are fixed on valve seat 2 one ends, and the other end is fixed on the saturating body groove of control valve tail end 10.When oil well liquid-producing surpassed setting pressure, spring 5 was compressed, and valve body is opened, and production fluid passes through one-way valve.Leaked when pipeline cuts off (or other accident) production fluid, when the pipeline internal pressure was lower than setting pressure, control valve valve body 4 was under the effect of spring 5 power, and pulling control valve valve body 4 makes valve body sealing surface 8 coincide with sealing surface of seat 3 and seals.Play the effect of closing automatically.

Flow control part: form with screw set 13 and screw set sealing seat 14 by leading screw 11, leading screw seat 12.By regulating the distance of leading screw 11 and valve seat 2 end faces, the maximum open amount of control valve body 4 is realized flow control, until closing.

Guarding portion: outside the leading screw operative end face 15 of flow control part, sealing drum 17 is installed along leading screw axis extension.System annular groove 16 in the sealing drum 17.The cipher anti theft tapered end is installed in the sealing drum 17, and the locking plate of tapered end is connected in the annular groove 16.Do not know password, just get not lower lock head, also just can't operated valve,

Reach antitheft purpose.The concrete structure of anti-theft lock end adopts patent No. ZL02213859.5.

The advantage of antitheft single current valve is that energy consumption is little, discharge value is big, simple in structure, complete function, be convenient to install, in light weight, good anti-theft effect.

Working procedure: but if want the single current valve to enter the normally state, aim at the password of Theft-proof stopper earlier, take out Theft-proof stopper.Socket wrench is enclosed within the screw set operating end, be rotated counterclockwise screw set 13 drive leading screws 11 and leave valve body end face 6 to ultimate range, single current valve body 4 when oil well ordinary production production fluid surpasses setting pressure in (spring-actuated power) single current valve housing 1 is open, and production fluid flows out from the saturating body groove 7 of the level of valve seat 2 and control valve 4.Other valve of setting when well recovery is opened, when production fluid leaks, single current valve internal pressure is lower than setting pressure, single current valve body 4 in the one-way valve housing 1 is under the effect of spring 5 power, make the sealing surface 8 of single current valve body 4 tightly be pressed on valve seat 2 sealing surfaces 3, thereby the path that the crude oil in the cut-out oil gathering station leaks is reduced the loss.Realize the function of one-way valve.When closing the single current valve, requirement of engineering only needs the password of the Theft-proof stopper in the sealing drum 17 (accompanying drawing two) is aligned back taking-up Theft-proof stopper, socket wrench is enclosed within screw set operating end 15, rotating threaded shaft cover 13, screw set 13 drives leading screw 11 and compresses single current valve body end face 6, makes sealing surface 3 close-coupled of sealing surface 8 with the valve seat 2 of single current valve body 4.The single current valve closing.End of operation, Theft-proof stopper packed into to lock in the sealing drum 17, does not know that the people of password just can't operate the single current valve, plays antitheft effect.

Claims

1, antitheft single current valve mainly by folk prescription to the FLOW CONTROL part, flow control part and guarding portion constitute, it is characterized in that the inner wall housing (1) that folk prescription is partly installed this valve inlet direction to FLOW CONTROL locates, single current valve seat (2) is housed, these one-way valve valve seat (2) one sides are made as the sealing surface (3) on inclined-plane, the upper end sealing surface (8) of control valve (4) also is made as an inclined-plane, coincide with the sealing surface (3) of valve seat (2), spring (5) is housed in the control valve valve body (4), spring (5) one ends are fixed on valve seat (2) one ends, the other end is fixed on the saturating body groove of control valve tail end (10), the flow control part is by leading screw (11), leading screw seat (12) is formed with screw set (13) and screw set sealing seat (14), guarding portion is installed in the leading screw operative end face (15) of flow control part, along leading screw axis extension sealing drum (17) is installed, system annular groove (16) in the sealing drum (17), the cipher anti theft tapered end is installed in the sealing drum (17), and the pin sheet of tapered end is connected in the annular groove (16).

2, by the described antitheft single current valve of claim 1, it is characterized in that the intermediate portion of the sealing surface (8) of control valve (4) is shaped on groove (9), control valve (4) valve body is a cylindrical-shaped structure, and its substantially horizontal is the above saturating body groove (7) in distribution two roads evenly.