CN2047309U - Pneumatic variable-capacity type deep well pump - Google Patents

Abstract

The utility model discloses a variable-capacity type deep well pump for directly compressing and conveying liquid driven by compressed-air. The variable-capacity process of the utility model is achieved by the compressed-air taking up the space of the upper part of a compressing water cylinder to make the containing water space generate the variation. The utility model uses the compressed-air conveyed by a ground compressor to extract the underground water in a deep well alone. Therefore, the under well equipment is small. The compressor can be driven by an internal-combustion engine or the wind force. The pumping-out height depends on the pressure of the compressed-air. When every 10m pumping lift is increased, the pressure of the compressed-air is increased with 1 kg/cm. A piston and a rotating part are arranged in a pump body. The utility model has the advantages of high work efficiency and easy fabrication and is very applicable to the drought resistance of the countryside.

Description

Pneumatic variable-capacity type deep well pump

The utility model is to be power with pressurized air or steam, directly the variable capacity deep-well pump of force feed liquid.Its transfiguration process is with pressurized air or the steam hydraulic fluid cylinder upper space that accounts for, and cylinder content liquid space is changed realize.It if pressurized air or the steam sent here to ground, can in the down-hole underground water or crude oil be mentioned ground separately.Simultaneously, various power such as air compressor can internal-combustion engine, wind-force are Driving force, adapt to the wide geographic area that lacks electric power.Maybe can not add the oil well that water becomes the pressure well for there being well to press, use steam can heat up to crude oil simultaneously, can bring into play its superiority better as power.

Because the negative restriction of inhaling height of vacuum, any deep-well pump all can't widely differently be kept away the pump housing is placed the down-hole.But present pump, because pump housing size reaches pump greatly and power equipment will fuse, it is difficult placing deep-well.Existing deep-well pump is owing to adopt motor to be used as power, and motor is in underground work, and problems such as insulation, sealing, heat radiation are brought many difficulties to technology.A kind of deep-well pump aspect petroleum production because lift requires to reach one or two km, save pump with hundreds of and connect step by step at present.Technical difficulty is very big.

The utility model purpose is, seek a kind of can better reduce pump housing size and make power equipment and the pump housing away from way, solve the problem that present deep-well pump runs into.

The purpose of this utility model realizes by following equipment and working principle thereof.The structure of equipment such as accompanying drawing: by distributing valve (1); Distribution spool (2); Spring (3); Left side hydraulic fluid cylinder (4); Right hydraulic fluid cylinder (5); Last fluid passage (6); Left side kickboard (7); Right kickboard (8); Upper left liquid one-way valve (9); The left feed liquor one-way valve of upper right liquid one-way valve (10) (11); Right feed liquor one-way valve (12); The a left side right breathing pipe of breathing pipe (13) (14); Left side suction valve (15); Right suction valve (16); Left bank air valve (17); It is to make spool (2) can remain on valve pocket left end or right-hand member that right outlet valve (18) is formed spring (3), and these two settling positions and regulating spool move required air pressure and establish.Because the feed liquor of pump is realized by liquid source pressure, so pump must be installed under the liquid level of liquid source certain depth to obtain enough inlet hydraulics.The purpose of this utility model is achieved in that working as pump installs, after connecting transfusion and gas pipeline, because liquid source pressure, liquid will be pushed the feed liquor one-way valve open and enter in the hydraulic fluid cylinder, owing to go up fluid passage now liquid is not arranged as yet, the liquid that enters the hydraulic fluid cylinder also can be pushed the liquid one-way valve open and enter fluid passage, and just liquid does not just move under pressure balanced situation.When the pressurized air on ground or steam are passed to, because the state that distributing valve is determined makes another cylinder exhaust of a cylinder air inlet.The situation that the right just cylinder of accompanying drawing situation (5) air inlet, left cylinder (4) exhaust, distributing valve are not reversed as yet.With this state is initial, because kickboard (8) arrives right cylinder (5) end, sealed right cylinder (5) outlet passage at the end soon, in-cylinder pressure raises rapidly, Pneumatic pipe cleaner is crossed right breathing pipe (14) and is imposed on spool (2) right side, and spool (2) is moved to the left.Because the effect spool (2) of spring (3) arrives the left end settling position rapidly.At this moment state is reversed to right cylinder (5) exhaust, left cylinder (4) air inlet.Entered the liquid of left cylinder (4),, entered fluid passage (6) and be forced through left bank liquid one-way valve (9) because of pressurized air or steam enter left hydraulic fluid cylinder (4); At this simultaneously, right cylinder (5) is owing to exhaust, and in-cylinder pressure descends, and liquid source pressure makes liquid enter right cylinder (5) through right feed liquor one-way valve (12).After the liquid of left cylinder (4) all was pressed onto fluid passage (6), kickboard (7) was sealed the cylinder bottom outlet, and left cylinder (4) internal pressure rises, and Pneumatic pipe cleaner is crossed left breathing pipe (13) and imposed on spool (2) left side, makes spool be returned to the right-hand member settling position.A work cycle that Here it is.Because the effect of one-way valve and the appearance liquid space of cylinder change, liquid is promoted one after another.Its lift depends on the supply gas pressure of pressurized air or steam, and 1Kg/cm whenever is provided ²Air pressure can obtain the 10M lift.In order to guarantee lift, accruedly during design go into fluid linear loss pressure and leave certain allowance.Also to suitably adjust into during design, discharge opeing and fill, the effective cross section of bleed passage, with drain time and the feed liquor time synchronization that reaches cylinder.This is the requisite measure that improves the efficient of pump.

The utility model is to be the pump of power with pressurized air or steam merely, the problem of having avoided electricity consumption to bring.This pump has been compared simple in structure with other pump, the efficient height, control is simple and easy, volume is little, easy manufacturing, can adapt to bad working environment, easily obtains advantages such as high-lift.

Now lifting a kind of lift is 40 meters; Flow is that the pump of 4.5L/S is an example.List the key data of pump: air pressure is 5kg/cm ²Tolerance is 0.27m ³/ min(compression back gas volume); Distributing valve core diameter 32mm; Spool pressurized end face diameter 15; Air inlet caliber 5mm; Exhaust caliber 7mm; Cylinder diameter 65; The high 600mm of cylinder; Feed liquor caliber 30mm; Discharge opeing caliber 15mm; Kickboard 62 * 65.

Claims (4)

1, the utility model be a kind of be power with pressurized air, be used for the phreatic pneumatic variable capacity deep-well pump of extracting, it is characterized in that: fill, exit, utilize pressurized air to occupy the container upper space for the container of two or more band one-way valves with one or several distributing valve, water space capacity in the container is changed, reach the pump of water delivery.

2, according to claim 1, described distributing valve, be to promote with pressurized air, the air valve of the auto-reverse distribution state of energy.

3, according to the container of claim 1, described band one-way valve, the water-in and water-out one-way valve is arranged at the bottom, and top has into and out of tracheae and is communicated with distributing valve.

4, according in claim 1, the described container, have one can be with SEA LEVEL VARIATION in the container, the kickboard that fluctuates.