CN2104293U - Sprocket group type hydraulic beam-pumping unit - Google Patents
Sprocket group type hydraulic beam-pumping unit Download PDFInfo
- Publication number
- CN2104293U CN2104293U CN 91221971 CN91221971U CN2104293U CN 2104293 U CN2104293 U CN 2104293U CN 91221971 CN91221971 CN 91221971 CN 91221971 U CN91221971 U CN 91221971U CN 2104293 U CN2104293 U CN 2104293U
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- oil
- accumulator
- oil pump
- valve
- pumping unit
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Abstract
The utility model belongs to a hydraulic oil pumping machine used for an oil industry. The hydraulic oil pumping machine used for an oil industry is composed of a hydraulic system and a chain wheel set stroke lengthening mechanism. The hydraulic oil pumping machine used for an oil industry is characterized in that a plunger type oil cylinder, an energy storage device, and a main oil pump are adopted to form a closed circulation system. Additionally, an air supply device and an oil supply device are added. A tooth shape chain is adopted to be used as a flexible transmission member, and the problem existing in the prior art is solved. The hydraulic oil pumping machine used for an oil industry has stable reliable running, simple and compact structure, light weight, low manufacturing cost, long stroke, low stroke frequency, and wide adapting range. The hydraulic oil pumping machine used for an oil industry is especially suitable for the thick oil exploitation work in a deep well.
Description
The utility model belongs to petroleum industry the rod-type oil production equipment, relates generally to hydraulic pumping unit.
The single cycle formula hydraulic oil pumping lubricating oil pump of prior art is twice pressurization of process oil pump to the fuel feeding of oil cylinder, and hypertonia is limited by system strength, must reduce pressure by increasing flow system flow, and this has just strengthened system's hydraulic pressure size of component and weight.In the upper and lower stroke of piston, do not utilize the cushioning effect of accumulator air chamber to slow down the reversing impact of hydraulic system, thereby the reversing impact of this hydraulic system is bigger, has strengthened the sucker rod inertial load in addition.In addition, the single cycle hydraulic pumping unit be adopt piston rod directly and sucker rod link, this just causes (1) stroke to be subjected to certain limitation, does not satisfy the requirement of long stroke; As stroke 8m, the frame that is higher than 16m must be arranged.(2) jig frequency is 6 times/minute, and piston speed can reach 1.6M/S, exceeds the design speed (the highest 0.6M/S of being not more than) of general hydraulic jack, has accelerated the abrasion of seal.(3) frame stride well head install to the construction and well workover bring certain difficulty.
It is that power transmission drives the sucker rod motion that mechanically operated no beam pumping unit adopts wire rope, during owing to the oil pumper operation, can reverse because of twisting resistance appears in wire rope, and wire rope and rope sheave friction are perishable; When stroke was big, two ropes also were prone to twisted rope, cause sucker rod to work.
The utility model and purpose are to provide a kind of deficiency that overcomes above-mentioned oil pumper, and can keep that the single cycle hydraulic pumping unit is simple in structure, hydraulic system is closed cycle and adopt chain wheel set to realize increasing the chain wheel set formula hydraulic pumping unit of journey.
The utility model adopts following solution:
In the hydraulic pumping unit of forming by chain wheel set and hydraulic system, profile of tooth chain one end links by the decide sprocket wheel and coupling and sucker rod that is fixed on upper rack, the other end by being fixed in ram cylinder cylinder body lower end movable sprocket and the fixed chain wheels on the ram cylinder after be fixed on oil cylinder or the frame and link, the oil circuit interface of ram cylinder is by a reversal valve, communicate with two grease chambeies, accumulator bottom and main oil pump respectively, main oil pump is connected through the grease chamber, bottom of a cooler and an accumulator, the two ends of a main oil pump overflow valve in parallel.
The top air chamber of two accumulators links to each other with two opposing one way valves by a valve respectively.Auxiliary oil pump one end is communicated with fuel tank by cleaner, and the other end is by a reversal valve, and the solenoid operated directional valve and the plunger type air pump that surges communicate with the top air chamber of two accumulators, and a termination of overflow valve is led to fuel tank, and the other end communicates with the outlet of solenoid operated directional valve.In addition, reversal valve interface is also connected with the main oil pump in-line of working connection.
The utility model compared with prior art has:
1, the utility model has adopted ram cylinder, need not the profound endoporus of Precision Machining, has reduced processing charges.
2, in working connection, be provided with two accumulators, one with the required oil mass reduction by 50% of impulse stroke hydraulic system, potential energy when another has stored the falling of sucker rod gravity with impulse stroke becomes the fluid pressure energy, improved the oil pump inlet pressure, the oil pump operating pressure is reduced, thereby reduced the installed capacity of complete machine.
3, the utility model has adopted silent chain as driving member, avoided wire rope stressed after, the twisted rope problem that elongation strain fixing and stroke has been grown.Adopt chain wheel set, solved the long stroke of sucker rod, promptly increase Cheng Wenti.
4, adopt accumulator, solved the equilibrium problem of sucker rod, reduced the reversing impact of the shock load and the hydraulic system of sucker rod, prolonged the application life of sucker rod and hydraulic system element, reduced the well workover number of times.
5, the working connection of hydraulic system is a closed cycle, does not have the hydraulic energy of release, and installed capacity is minimized.
6, be provided with the device of tonifying Qi and repairing, can guarantee the running working properly of hydraulic system.
7, the utility model compact conformation, in light weight is easy for installation, in addition, can install easily in frame lower and to go along with sb. to guard him the room, to reduce the pollution of oil field environment to its hydraulic system.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a hydraulic scheme of the present utility model;
Among Fig. 1: 1 wellhead assembly, 2 main oil pumps, 3 movable sprockets, 4 auxiliary oil pumps, 5 plunger type air pumps, 6 accumulators, 7 accumulators, 8 coolers, 9 ram cylinders, 10 fixedly chain folder, 11 sucker rods, 12 plungers, 13 silent chains, 14 frames, 15 couplings, 16 are decided sprocket wheel.
Among Fig. 2: 17 overflow valves, 18 one way valves, 19 pressure switches, 20 overflow valves, 21 reversal valves, 22 reversal valves, 23 overflow valves, 24 solenoid operated directional valves.
Among the figure, silent chain 13 is connected and fixed by hookup 15 and sucker rod 11, it is descending to decide sprocket wheel 16 by two that are positioned at frame 14 tops, it is rear up to walk around the movable sprocket 3 that places ram cylinder 9 bottoms, again through jointly being fixed on the sprocket wheel of deciding on the frame 14 with plunger 12, connect with fixedly chain folder 10 on the ram cylinder 9. When the cylinder body of ram cylinder 9 moves downward, can drive sucker rod 11 by silent chain 13 and move upward, realize the oil pumping motion. After arriving the summit, by the deadweight of sucker rod 11, drive ram cylinder 9 cylinder bodies and move upward, recover its initial position. Thereby can realize that sucker rod 11 and the cylinder body of ram cylinder 9 oppositely move back and forth. And because movable sprocket and the combination of deciding sprocket wheel, realized the journey that increases of sucker rod, solved the long stroke problem of sucker rod, silent chain 13 connects with the ram cylinder cylinder body among Fig. 1, can realize increasing journey than being 1:3, when silent chain 13 is fixed on the frame 14 by movable sprocket 3, can realize increasing journey than being 1:2, when changing the chain wheel set of deciding sprocket wheel 16 and movable sprocket 3 compositions, can realize increasing journey than being 1:4,1:5, namely the oil cylinder stroke is 2.7 meters, and the sucker rod stroke can reach To 5.4 meters, 8.1 meters. 10.8 rice, 13.5 meters etc.
Among Fig. 2, in the working connection that is formed by accumulator 6 and accumulator 7 and reversal valve 22 main oil pumps 2, when the work of the left chamber of reversal valve 22, the outlet of main oil pump 2 and grease chamber, bottom and ram cylinder 9 vent lines of accumulator 6 are connected, close simultaneously the grease chamber, bottom of accumulator 7 and the oil circuit of ram cylinder 9, the pressure oil that the hydraulic oil of main oil pump 2 and accumulator 6 are stored, simultaneously pressurization, inject ram cylinder 9, force oil cylinder descending, drive silent chain 13, make sucker rod 11 up oil pumping, i.e. impulse strokes. When ram cylinder 9 comes downwards to bottom dead centre, depress travel switch, the left chamber of reversal valve is closed, right chamber is connected, the grease chamber, fuel-displaced injection accumulator 6 bottom of main oil pump 2, simultaneously, gravity by sucker rod 11, the cylinder body that drives ram cylinder 9 through silent chain 13 is up, makes in-oil cylinder oil inject grease chamber, accumulator 7 bottom through reversal valve 22, and energy is stored up. Simultaneously, main oil pump 2 is half of accumulator 7 bottoms oil indoor oil, and after its another outlet was by cooler 8 coolings, pressurization was injected grease chamber, accumulator 6 bottom and stored. When oil cylinder rises to top dead-centre, depress travel switch, reversal valve 22 namely commutates, and left chamber is connected. Right chamber is closed, and repeats above-mentioned action.
When the work of the right chambeies of reversal valve 21, the oil that auxiliary oil pump 4 is extracted out in the fuel tank through cleaner can go in check valve 18 adds to the working connection system at main oil pump 2 places, keeps certain oil pressure of working connection system. When work in reversal valve 21 left chambeies, auxiliary oil pump 4 can inject the plunger air pump 5 that surges to oil through solenoid directional control valve 24, makes the plunger air pump work of surging, and produces gas, inject respectively the top air chamber of accumulator 6 and accumulator 7 through connecting line, keep the air pressure of two accumulator top air chambers. On repairing oil circuit and tonifying Qi oil circuit and two accumulator air chambers, overflow is set all and cuts down, to realize overload protection.
Embodiment:
Frame adopts A
3Shaped steel welding, oil cylinder, accumulator and plunger select for use thick-walled seamless steel pipes to make, and sprocket wheel adopts QT60-2 processing.Chain is selected standard laid down by the ministries or commissions of the Central Government JB1839-76 silent chain for use.
Chain wheel set formula hydraulic pumping unit major parameter after the combination:
Suspending point loading: 10～16 tons
Driving stroke: but 8～13.5m(step-less adjustment)
Jig frequency: but≤6 times/min(step-less adjustment)
Main oil pump model: ZB-F481-J
Power of motor: 15～75KW
Complete machine weight: 7.5～12 tons
Claims (4)
1, a kind of chain wheel set formula hydraulic pumping unit, comprise frame 14, main oil pump 2, reversal valve, overflow valve and connection pipeline, it is characterized in that: silent chain 13 1 ends link by the decide sprocket wheel 16 and coupling 15 and sucker rod 11 that is fixed on frame 14 tops, the movable sprocket 3 of the other end by being fixed in ram cylinder cylinder body 9 lower ends links with fixedly chain folder 10 or frame 14 on the ram cylinder 9, the oil circuit interface of ram cylinder 9 by reversal valve 22 respectively with accumulator 6 and grease chamber, accumulator 7 bottom, and main oil pump 2 communicates, the import oil circuit of main oil pump 2 is connected through the grease chamber, bottom of cooler 8 with accumulator 7, and the import oil circuit of the overfall of overflow valve 20 and main oil pump 2 is connected.
2, chain wheel set formula hydraulic pumping unit according to claim 1 is characterized in that: the top air chamber of accumulator 6 and accumulator 7 links to each other with two opposing one way valves by a valve respectively.
3, chain wheel set formula hydraulic pumping unit according to claim 2, it is characterized in that: auxiliary oil pump 4 one end pipelines are communicated with fuel tank by cleaner, the other end is connected by an interface and solenoid operated directional valve 24 of reversal valve 21 and the two one way valves centre of surging between plunger type air pump 5 and accumulator 6 and the accumulator 7, overflow valve 23 1 termination fuel tanks, the oil-in of another termination solenoid operated directional valve 24.
4, chain wheel set formula hydraulic pumping unit according to claim 3 is characterized in that: auxiliary oil pump 4 communicates with main oil pump 2 import oil circuits in the working connection by another interface of reversal valve 21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91221971 CN2104293U (en) | 1991-10-24 | 1991-10-24 | Sprocket group type hydraulic beam-pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91221971 CN2104293U (en) | 1991-10-24 | 1991-10-24 | Sprocket group type hydraulic beam-pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2104293U true CN2104293U (en) | 1992-05-13 |
Family
ID=4928893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91221971 Granted CN2104293U (en) | 1991-10-24 | 1991-10-24 | Sprocket group type hydraulic beam-pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2104293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917606A (en) * | 2017-03-08 | 2017-07-04 | 燕山大学 | Spring energy-storage off-load and flexible wheel base stroke-increasing pumping unit |
-
1991
- 1991-10-24 CN CN 91221971 patent/CN2104293U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917606A (en) * | 2017-03-08 | 2017-07-04 | 燕山大学 | Spring energy-storage off-load and flexible wheel base stroke-increasing pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |