CN2611599Y - Gas/liquid matcher - Google Patents

Abstract

The utility model provides a gas and liquid matcher for filling nitrogen and chemical medicine in heavy oil extraction in an oil field. The utility model is technically composed of a transmission part and a hydraulic part, so quantitative gas and quantitative liquid enter a mixing pipe through a gas inlet, and is transported into an oil extraction device through an outlet of the device after mixed. The utility model solves the problems that in the prior art, the scale of the nitrogen and the chemical medicine filled in an oil extraction site often varies, the matching quantity of the original metering pump is not stable, the variation of the gas and liquid ratio does not vary with the variation of the pressure, and the moving degree is not enough. The utility model is mainly characterized in that the transmission part drives a plunger piston to make a reciprocating motion, and the hydraulic part transports the liquid through suction and discharge. The device has the characteristics of novel and simple structure, reliable performance, etc., and is widely used for the site operation of the heavy oil extraction in the oil field.

Description

The gas-liquid matching device

Technical field:

The utility model relates to the gas-liquid matching device that a kind of oil-field thick-oil exploitation nitrogen injection and chemicals proportioning are used.

Background technology:

Present domestic oil-field thick-oil exploitation mainly is to adopt steam in jection and chemical mode to carry out, the ratio of on-the-spot nitrogen injection and chemicals often changes owing to recover the oil, original measuring pump proportional quantity instability, the variation of gas liquid ratio can not be with change in pressure, movingization degree is not enough, do not satisfy requirement, and there is not the equipment of this respect again, thereby influenced injection rate, reduce displacement of reservoir oil speed, the inventor is according to need of work and experience, and the interrelated data of participating in government and political affairs has been developed into the gas-liquid matching device, this device is not only on-the-spot also can be used indoor, good through test effect.

The utility model content:

Often change in order to overcome the recover the oil ratio of on-the-spot nitrogen injection and chemicals of oil-field thick-oil, original measuring pump proportional quantity instability, the variation of gas liquid ratio can not be with change in pressure, and movingization degree does not satisfy requirement inadequately.The gas-liquid matching device that the utility model provides a kind of oil-field thick-oil exploitation nitrogen injection and chemicals proportioning to use, this device is respond well in the gas-liquid proportioning is on probation.

The technical scheme that its technical problem that solves the utility model adopts is: this device is made up of transmission and two major parts of fluid power, running part is to impel plunger reciprocating, fluid power partly is by suction and discharges the effect of carrying liquid of playing that quantitative gas enters mixing tube and transfers out through this device outlet after air inlet port and liquid proportioning; Plunger is reciprocating to be by the rotation of motor drives worm shaft, by straight end-face key the eccentric block that is coupled on the bent axle is rotated with worm gear reducer, and the off-centre that bent axle causes is by connecting rod, and cross head is moved and realized.When bent axle during in the lower position stroke be 0, when bent axle during at upper limit position stroke be 100%, eccentricity value by axle and eccentric block makes connecting rod drive cross head, reciprocating by the haul distance of setting up, the lubricated of each parts is to adopt to inject a certain amount of lubrication oil in casing in the casing, wherein worm screw, worm gear, lower sleeve, bearing all adopt to bathe and lubricate, connecting rod two ends and thrust bearing, and splash lubrication is then carried out by worm screw in cross head friction position.Bent axle cooperates between the central point in axle center and the eccentric block center line partially, and value is 1/4 of a stroke (S) with eccentric block, crankshaft center off-centre is 0, lower end and upper end sloping shaft specified point eccentricity value are respectively ± S/4, when bent axle during in the lower position eccentricity value of this eccentricity value and eccentric block cancel each other, therefore offset is 0, otherwise add up to S/2 at the eccentricity value of upper limit position bent axle and eccentric block as bent axle, so haul distance is maximum, with crank position under be limited to upper limit offset by-S/4-+S/4 is a linear change, so ram travel is adjusted in the scope of 0-100%.Be equipped with on transmission case body top and make the upper and lower mobile stroke control mechanism of bent axle: when regulating handle was rotated counterclockwise, adjusting rod drove bent axle and moves up, and ram travel increases gradually; When regulating handle turned clockwise, adjusting rod drove bent axle and moves down, and ram travel reduces gradually.Regulate the inside and outside scale that puts, both relative positions can reflect the relative length of stroke value.Quantitative gas enters mixing tube through air inlet port to be mixed with liquid through gas-liquid matching device outlet and transfers out.

The beneficial effects of the utility model are, novel structure is simple, and dependable performance uses this to install that under any circumstance the gas-liquid proportional quantity is normal.

Description of drawings:

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model overall structure schematic diagram.

Among the figure 1, transmission case body, 2, worm gear, 3, lower sleeve, 4, worm shaft, 5, eccentric block, 6, bent axle, 7, upper bush, 8, regulate in cover, 9, regulate overcoat, 10, regulating handle, 11, adjusting rod, 12, connecting rod, 13, cross head, 14, plunger, 15, the feed liquor valve, 16, liquid valve, 17, air inlet port, 18, mixing tube, 19, the outlet of gas-liquid matching device.

The specific embodiment:

In Fig. 1, motor is connected with steel axle shape worm screw 4 by shaft coupling, and worm screw 4 is connected with bronze round worm gear 2 gears, and worm gear 2 is connected with steel cylindrical shape lower sleeve 3, steel crankshaft 6, the circular eccentric block 5 of steel by key, and eccentric block 5 is enclosed within on the bent axle 6; One end of steel connecting rod 12 is contained in to hold in addition on the eccentric block 5 and is contained in bolt connection on the square cross head 13 of steel, cover 8 was packed into and is had in the cylindrical shape adjusting overcoat 9 of 0-5 scale with stainless steel in the cylindrical shape that stainless steel is had a 0-100 scale was regulated, then the two is contained between the upper surface with the transmission case body 1 of stainless steel system dome-shaped regulating handle 10 and cast iron square, stainless steel adjusting rod 11 is contained in 7 li of cylindrical shape upper bushes and is connected with regulating handle 10 usefulness bolts, plunger in the fluid cylinder (2Cr13 system) 14 exports 19 bolton with feed liquor valve 15 and liquid valve 16 with mixing tube 18. gas-liquid matching devices, and air inlet port 17 is threaded with steel mixing tube 18.This device is a kind ofly to require to have in metered flow 0-100% scope step-less adjustment according to flow process and quantitatively carry liquid plant, and the measuring accuracy that is transferred medium when maximum is drawn journey is ± 2%, this device is applicable to delivery temperature-30-+50 ℃, and viscosity is 0.3-30000mm ²The medium that does not contain the bulk particle of/S.

Claims (1)

1, a kind of gas-liquid matching device, it is characterized in that: motor is connected with steel axle shape worm screw (4) by shaft coupling, worm screw (4) is connected with bronze round worm gear (2) gear, worm gear (2) is connected with steel cylindrical shape lower sleeve (3), steel crankshaft (6), the circular eccentric block of steel (5) by key, and eccentric block (5) is enclosed within on the bent axle (6); One end of steel connecting rod (12) is contained on the eccentric block (5), end is contained in the square cross head of steel (13) and goes up the bolt connection in addition, cover (8) was packed into and is had in the cylindrical shape adjusting overcoat (9) of 0-5 scale with stainless steel in the cylindrical shape that stainless steel is had a 0-100 scale was regulated, then the two is contained between the upper surface with the transmission case body (1) of stainless steel system dome-shaped regulating handle (10) and cast iron square, stainless steel adjusting rod (11) is contained in cylindrical shape upper bush (7) lining and is connected with regulating handle (10) bolt, embolism in the fluid cylinder (14) and feed liquor valve (15) and liquid valve (16) and mixing tube (18), gas-liquid matching device outlet (19) bolt connects, and air inlet port (17) is threaded with mixing tube (18).

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