CN2382906Y

CN2382906Y - Automatic water closing control valve

Info

Publication number: CN2382906Y
Application number: CN 99224346
Authority: CN
Inventors: 周继宏
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-30
Filing date: 1999-06-30
Publication date: 2000-06-14
Anticipated expiration: 2009-06-30

Abstract

The utility model relates to an automatic water closing control valve which is installed on a main sewer inside an oil storage tank. The utility model is a control valve which is controlled by a float and sealed by a float ball. A water inlet pipe of the control valve is installed on the lower part of a valve body, and a water outlet pipe is installed on the upper part of the valve body; the middle part in the valve body is provided with a valve seat which separates the valve body into an upper chamber and a lower chamber. The float controls a lifting rod to move upwards and downwards along central through holes of the valve seat to control the floating ball which is positioned inside a hollow chamber on the lower part of the valve seat and can seal the central through holes of the valve seat to move so as to realize the automatic control of water exchange. The utility model has the advantages of reasonable design, simple structure, low cost, high reliability, no use of anticoagulation treatment and antifreezing treatment, and strong water discharge capacity. The utility model can ensure that the oil storage tank is needless to maintain during an overhaul period, and the water cutting effect is not limited by the water discharge.

Description

Automatically cut water control valve

The utility model relates to a kind of oil storage tank with cutting water control valve automatically, and it is mounted in oil storage tank inside, according to the height of oil-water interfaces in the jar, and what can open or close automatically cuts water control valve.This valve is mainly used in the oil storage tank of oil refinery, various oil depot, oil field, long distance pipeline etc. or in the oil storage chamber of oil carrier.

At present, the automatic control of oil storage tank employing is cut the water technology and is mainly contained two types: electronic type and mechanical type.

1, electronic type is cut the principle that the water management instrument mainly is employing " shortwave absorption method " automatically, difference by its probe installation location is divided into two kinds: a kind of is that probe is installed on the oil storage tank tank skin, probe stretches into jar interior jar interior oil-water interfaces of surveying from tank skin, determines the open and close of control valve according to the position of oil-water interfaces in the jar; Another kind is that probe is installed on jar outer small-sized oil and water seperator, by the position of the oil-water interfaces in the control oil and water seperator, controls and cuts the water operation.These two kinds of controllers are owing to cost an arm and a leg at present, and jar outer pipeline, valve, equipment are many, need anti-condensation, antifreeze facility, consume tracing steam; And influence the whole shock resistance of oil tank.

2, the automatic discharging water valve of mechanical type: ZL97236423, No. 4 patent disclosures a kind of " the automatic discharging water valve of high-pressure bottle ", form by oil-collecting displacement can and drain valve.Establish floating drum in the oil-collecting displacement can, the connecting rod of floating drum links to each other with drain valve.There is spring the valve rod lower end, and the upper end links to each other with a movable sheath, is provided with fixed axle sleeve in the valve body, and movable sheath is placed in this axle sleeve and also can slides along axle sleeve outward, and the power bar drives lifting axis and moves up and down in axle sleeve.When buoyancy of water greater than oil when making the floating drum buoyance lift, by the transmission of power bar, make to be actively set under the effect that highly pressurised liquid and lifting axis make a concerted effort the draining of pressure spring automatic valve opening.ZL93227088, No. 3 patent disclosures a kind of " the free floating ball type is cut water valve ", form by ball float and valve seat, the valve body of a density between oil and water.It is according to different these characteristics of profit density, in the time of in water enters valve body, and the ball float come-up, cut water valve and be "open" state, cut water and end when having oil to enter in the valve body, ball float sinks, drop on the valve seat, be "off" state, thus the effect that water resistance oil is cut in realization.More than two kinds of mechanical types cut wetting system automatically and all be mounted in outside the jar, pipeline, equipment need anti-condensation, antifreeze facility, consumes energy, complex operation; It is little to cut the water drainage capacity, not too suitable for the oil product storage tank that large-scale storage tank or water content are big; And the whole shock resistance to oil storage tank has adverse effect.

The purpose of this utility model provides and a kind ofly is installed in oil storage tank inside, cuts that water is effective, drainage capacity is big, simple in structure, reliability is high cuts water control valve automatically.

The utility model is achieved in that cutting water control valve automatically is installed on the interior main sewer of oil storage tank.It is a control valve of being controlled, utilized the ball float sealing by float.Be characterized in that the intake pipe of this control valve is connected to the bottom of valve body, its outlet pipe is connected to the top of valve body, and the middle part in valve body is provided with valve seat, will be divided into upper and lower two chambeies in its valve body.Float control lifting bar moves along the central through bore of the valve seat in the valve body is upper and lower, be located at control in the lower cavity of valve seat can the blocked center through hole the ball float action, realize the water management of cutting automatically of the present utility model.

The oil tank water-cutting system that adopts above-mentioned oil storage tank to cut water control valve control automatically has following characteristics:

Therefore 1, in design, entire mechanism is not selected the component of easy damage for use, and whole service life of equipment is long, and the reliability height can guarantee at oil storage tank non-maintaining in repair cycle.

2, entire mechanism is installed in oil storage tank inside, has only the jar root valve of a Tai Changkai and the very short straight-through pipeline of well down outside jar, does not therefore have anti-condensation, antifreeze problem, but energy saving, the gross investment of minimizing water-cutting system.

3, cut water speed and can how much determine that rationally mechanism's reliability of operation is not cut the influence of water flow according to oil tank size or moisture of oil.

4, simple in structure, cheap.

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is a plan view of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1, structural representation promptly of the present utility model.

The utility model is a control valve of being controlled, utilized ball float 9 sealings by float 1.Float 1 can be made by stainless steel, and its weight makes it can follow the tracks of the interior oil-water interfaces lifting of oil tank between oil and water with volume.The intake pipe 10 of this control valve is connected to the bottom of valve body 7, its outlet pipe 11 is connected to the top of valve body 7, the valve seat 8 that middle part in valve body 7 is provided with the band central through bore will be divided into upper and lower two chambeies in the valve body 7, epicoele communicates with outlet pipe 11, and cavity of resorption communicates with intake pipe 10.Float 1 control lifting bar 5 is along upper and lower the moving of central through bore (being vertical lift) of the valve seat 8 in the valve body 7, to promote to be positioned at ball float 9 declines or the rise (underpart of lifting bar 5 contacts with 9 of ball floats, but does not connect) of valve body 7 valve seats 8 lower cavity.The diameter of ball float 9 is greater than the diameter of valve seat central through bore, and its weight should be less than the density of water with the ratio of volume.For the power that makes the utility model compact structure and lever 3 has amplification, float 1 is controlled lifting bar 5 by lever 3, one end of lever 3 connects with hinges 2 with float 1 top, wherein an end connects with the lifting bar 5 usefulness hinges 6 of control valve, and lever 3 is provided with fixed hinge 4 between above-mentioned two hinges.Like this, lever 3 affacts on the lifting bar 5 of control valve after just playing the power of float 1 lifting being amplified.

The utility model is installed on cutting on the supply mains in the oil storage tank, and after oil product entered oil tank, institute's water content can slowly be deposited on tank bottom, and oil-water interfaces can raise gradually.Because float has special averag density, the oil-water interfaces rising can make the buoyancy of float strengthen, after overcoming its gravity, can produce a power that makes progress, this power after lever amplifies, the lifting bar 5 by control valve affacts on the ball float 9 again, produce downward thrust, when oil-water interfaces are raised to certain altitude, this thrust will be enough big, can promote ball float and move down, automatically cut water control valve and be opened, begin to cut water.Along with the carrying out that cuts water, oil-water interfaces can constantly reduce, the buoyancy of float 1 is constantly reduced, thereby control valve lifting bar 5 is constantly reduced the thrusts of ball float 9 downwards, when oil-water interfaces are reduced to certain altitude, the buoyancy that this thrust will make progress less than ball float, at this moment ball float will move upward, the central through bore of closed valve seat 8, control valve is closed, and cuts water and has just stopped.

The utility model is simple in structure, and is reasonable in design, safe and reliable.It is the present oil storage tank desirable Updated product of cutting water control valve automatically.

Claims

1, cuts water control valve automatically on a kind of main sewer that is installed in the oil storage tank, be by float control, utilize the control valve of ball float sealing; It is characterized in that the intake pipe (10) of this control valve is connected to the bottom of valve body (7), its outlet pipe (11) is connected to the top of valve body (7), middle part in valve body (7) is provided with valve seat (8), upper and lower two chambeies will be divided in its valve body (7), float (1) control lifting bar (5) is along the upper and lower motion of central through bore of the valve seat (8) in the valve body (7), be located at control in the lower cavity of valve seat (8) can closed valve seat (8) central through bore ball float (9) action.

2, the water control valve of cutting automatically according to claim 1, the weight that it is characterized in that described float (1) is between oil and water with volume.

3, the water control valve of cutting automatically according to claim 1 and 2, it is characterized in that float (1) controls lifting bar (5) by lever (3), one end of lever (3) connects with hinges (2) with float (1) top, its the other end connects with hinges (6) with the lifting bar (5) of control valve, and lever (3) is provided with fixed hinge (4) between above-mentioned two hinges.