CN2338514Y

CN2338514Y - Rotor pump with reciprocating vanes

Info

Publication number: CN2338514Y
Application number: CN 98238152
Authority: CN
Inventors: 柳振新
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-07-03
Filing date: 1998-07-03
Publication date: 1999-09-15
Anticipated expiration: 2008-07-03

Abstract

The utility model relates to a shuttle valve rotor pump which comprises a pump body, a front and a back end covers, a driving shaft, a rotor, a sealing element, etc. The utility model has the essential points that the rotor, in the radical direction, is provided with two bore cavities which are not communicated with each other in mutually vertical directions; an eccentric shaft, which has a certain eccentric distance relative to the shaft line of the rotor, passes through the middle sliding groove of a shuttle valve which can shuttles in the two bore cavities. The utility model can satisfies the requirements of the overall process of crude oil gathering and transporting, and the pumping efficiency is highest as sucking and discharging viscous mediums or mediums with high sand content. Moreover, the self-sucking process can be performed in mix transportation of air, water, and viscous mediums, with exact flow capacity and energy saving, so that the shuttle valve rotor pump can be widely applied to the industries such as petroleum, chemical engineering, foodstuff, thermal power generation, etc.

Description

The shuttle valve rotor pump

Technical field under the utility model shuttle valve rotor pump is a rotor pump.Shuttle valve is meant reciprocating plunger in the rotor vestibule.With front pump two major types are arranged at the utility model: vane type oil pump and positive displacement pump, centrifugal pump is arranged in the vane type oil pump, peripheral pumps etc. have reciprocating pump and rotor pump in the positive displacement pump.They respectively have the using scope of oneself, for example, current oil field to thick oil collection and transportation in, basically be that a positive displacement thick oil pump and a centrifugal pump combine supporting use, because positive displacement thick oil pump pump efficiency in moisture 30%-50% scope has only about 30%, moisture content can not set up greater than 50% back pump pressure.Centrifugal pump is between moisture 40%-50%, and the pump rate has only about 35%, and after moisture content surpassed 70%, centrifugal pump efficient was about 50%.The efficient of pump is improved? this is the defeated middle urgent problem of crude oil collection.China's oil field situation is various, and the oily stickiness that has is big, have be mixed with a large amount of air, water, and composition thereof.Existing oil field does not have independently to finish conveying task under this adverse condition with pump.And the existing pump thickness matter of carrying and aqueous mixtures cause after by the extruding conveying and separate difficult more problem.

The purpose of this utility model is to provide a kind of high medium of suction stickiness that can solve also to have high pump efficiency, convenient to the mixing delivery ratio of air, water, viscous medium simultaneously, be easy to oil, water separation, the advantage that two big pumps are can be rolled into one replaces matching used two pumps.

Content of the present utility model is: the shuttle valve rotor pump comprises parts compositions such as the pump housing, front cover, rear end cover, transmission shaft, hubcap, rotor, eccentric shaft, bearing sliding sleeve, sealed member and bearing, bolt.Along on the mutually perpendicular direction of rotor radial, have two vestibules that do not communicate, one has the eccentric shaft of 2-100mm wheelbase to pass the middle chute of reciprocating plunger (it is named shuttle valve) in these two vestibules with rotor axis, eccentric shaft one end is contained on the bonnet, the other end is contained on the capacity eccentric bearing sliding sleeve and the rotor axis keeping parallelism, capacity eccentric bearing slides over the connecting part of transmission shaft and rotor, closely cooperates with the bearing of rotor front end.Axle head and bearing sliding sleeve also are drive fit, the transmission shaft transmitting torque that is connected with the forward bolt that covers of rotor.The chute that the center eccentric shaft of two shuttle valves in two vestibules of rotor passes is a long ellipse garden shape, when rotor rotates, two shuttle valves are rotation thereupon also, because the effect of eccentric shaft forces shuttle valve to do mechanical to-and-fro motion in the vestibule of rotor and makes medium suck end discharge by an end.Four sealing blocks are housed on the shuttle valve rotor pump pump housing, sealing block is attached on the rotor with rotor shapes, have below it radially to make it be attached at the spring that rotor surface has certain dynamics, the tightness of spring is adjusted by adjusting swivel nut, adjusts the appropriateness back and is located by the nut check of little garden.Add combined seal ring on the shuttle valve for the suction of shuttle valve rotor pump can be leaned against, add three road piston rings on rotor, the external diameter of piston ring abuts against on the pump housing, combined seal ring is housed at the two ends of rotor makes medium-tight in the overcurrent part.

The utility model and prior art contrast advantage are: 1, and shuttle valve rotor technical data required for the pump: (1), lift: 0-3000M; (2), flow: 0.5-300M ³(3), the peak viscosity 100-150PaS of suction medium.2, can independently finish the conveying of air, water, viscous crude and composition thereof.3, change input speed, then the flow equal proportion changes and lift is constant.4, pump efficiency is 98% when low pressure, is 75% during mesohigh.5, substitute existing matching used pump, energy-conservation about 25%.6, have from absorption, not only reduced the trouble that causes, and performance is good, the self-priming height is not less than 6 meters.7, flow is accurate.

Above premium properties is because the structural feature that the shuttle valve rotor pump shows unique characteristics is formed.It not only improves pump efficiency greatly, energy saving, and can substitute the centrifugal pump of a positive displacement thick oil pump that adopts at present often for thick oil collection and transportation and combine matching used method.And good self-priming performance, flow accurately, all make this product have unprecedented premium properties, solved the key problem in technology of being badly in need of solution during the crude oil collection is defeated, the advantage that is with two big pumps concentrates on all over the body, having realized the target of a tractor serves several purposes, is the update product of thirsting for during current petroleum industry is produced for a long time.

The throw of eccentric of the utility model eccentric shaft can excursion 2-100mm, the size variation of throw of eccentric directly affects the variation of pump displacement, if the input speed of a pump motor is certain, the diameter of shuttle valve is certain, and pump delivery also increases equal proportion ground and dwindles so when the throw of eccentric of eccentric shaft increases and dwindles.

Be not difficult to find out according to structure of the present utility model, the working principle of shuttle valve rotor pump is its suction process just, be in rotary course, to move back and forth again by shuttle valve, the process of this compound motion is finished, medium with shuttle valve to B to moving and from A mouth suction pump, shuttle valve moves in vestibule while rotating the medium in the suction pump is suppressed away from the B mouth, then suppresses away from the A mouth from B mouth suction medium as counterrotating.

Below with embodiment in conjunction with the accompanying drawings to the utility model in addition further instruction: Fig. 1 be the utility model structural representation, Fig. 2 is the sectional view of its A, B.200 rev/mins of design speeds, flow is 10M ²/ N, pressure are 10KG/CM ²The shuttle valve rotor pump; When with speed setting during at 100 rev/mins its flow be 5M ³/ N, the flow equal proportion changed when promptly input speed changed.The shuttle valve rotor pump shown in accompanying drawing 1, accompanying drawing 2 by front cover 1, the pump housing 2, rear end cover 9, hubcap 10, rotor 3, shuttle valve 7,7 ', transmission shaft 11, eccentric shaft 4, capacity eccentric bearing sliding sleeve 8, lining 5, spacer 6, sealing cover 12, adjust swivel nut 13, spring 14,19, sealing block 15, round nut 30, O RunddichtringO 16, piston ring 22, combined seal ring 23,24 and bearing 17,18,21,

screw

20,25,27,29,31, institutes such as pin 26 form.

Oil pump electrical machinery drives transmission shaft 11 rotations, transmission shaft 11 is by pin on the axle head 26, rotor 3 driven rotary that screw 25 is fastening with it, two orthogonal but vestibules of not communicating are arranged on the rotor 3, shuttle valve 7 is housed respectively in 2 vestibules, 7 ', there is chute at the shuttle valve center, and the eccentric shaft 4 of supporting shuttle valve is slidingly matched by chute.The two supports of eccentric shaft 4 is on front cover 9 and capacity eccentric bearing sliding sleeve 8.The parallel eccentric 5mm of eccentric shaft 4 with rotor shaft.Capacity eccentric bearing sliding sleeve and bearing 17 drive fits, during rotor rotation, 2 shuttle valves also rotate thereupon, because the effect of eccentric shaft, two shuttle valves are done reciprocal mechanical motion in the vestibule of rotor 3.

Let out in reducing, the high low pressure chamber is separated, 4 sealing blocks 15 are housed on the pump housing 2, it leans against under the effect of spring 14 on the rotor closely, and the tightness of spring is adjusted and reached after the desired level by roundlet nut 30 locking and positioning by adjusting swivel nut 13.

Add combined seal ring 23 on shuttle valve, add three road piston rings 22 on rotor 3, the external diameter of piston ring abuts against on the pump housing 2, and the two ends of rotor 3 add combined seal ring 24 makes medium-tight in the overcurrent part.Design shuttle valve rotor pump root diameter Φ 200mm, shuttle valve diameter of phi 100mm, throw of eccentric 15mm, rotating speed 500 changes, and then discharge capacity is 28m ³The utility model is simple in structure, and reliable performance has extremely strong suction ability, but it not only need not guide self-priming but also pump efficiency height to the high oil of stickiness especially, and is energy-conservation, is the pump class new generation product that present oil field is badly in need of.Simultaneously the utility model shuttle valve rotor pump is in sewage treatment, oil refinery, power station (playing heavy oil in stove), reach the chemical plant and need use pump suction viscose glue, paraffin wax etc., use is very extensive, also but suction pitch, coal tar oil, syrup, china clay, cellulose etc. have very important economy and social effect.

Claims

1, it comprises a kind of shuttle valve rotor pump: the pump housing, front cover, rear end cover, transmission shaft, hubcap, rotor, sealed member, bearing, bolt etc., it is characterized in that: along on the mutually perpendicular direction of rotor radial, have two vestibules that do not communicate, one has the eccentric shaft of 2-100mm throw of eccentric to pass the middle chute of reciprocating shuttle valve in these two vestibules with rotor axis, eccentric shaft one end is contained on the bonnet, the other end is contained on the capacity eccentric bearing sliding sleeve and the rotor axis keeping parallelism, the capacity eccentric bearing sliding sleeve, in the connecting part of transmission shaft and rotor, with the bearing of the rotor front end transmitting torque that closely cooperates.Axle head and bearing sliding sleeve also are drive fit, and transmission shaft is connected with the forward bolt that covers of rotor.

2, shuttle valve rotor pump as claimed in claim 1 is characterized in that: four sealing blocks are housed on the pump housing, sealing block is close on the rotor with rotor shapes, have below it and radially make it be attached at the spring that rotor surface has certain dynamics, the tightness of spring is adjusted by adjusting swivel nut, adjusts the appropriateness back and is located by the nut check of little garden.

3, shuttle valve rotor pump as claimed in claim 1 is characterized in that adding combined seal ring on shuttle valve, adds three road piston rings on rotor, and the external diameter of piston ring abuts against on the pump housing, combined seal ring is housed at the two ends of rotor makes medium-tight in the overcurrent part.