CN205937062U

CN205937062U - Pump but draining formula is passed a bridge

Info

Publication number: CN205937062U
Application number: CN201620964075.6U
Authority: CN
Inventors: 崔宾涛; 唐勇; 东丽娜; 王雪梅; 韩建兴; 王文启; 黄永超
Original assignee: HENAN ZYZJ PUMP EQUIPMENT CO Ltd
Current assignee: HENAN ZYZJ PUMP EQUIPMENT CO Ltd
Priority date: 2016-08-29
Filing date: 2016-08-29
Publication date: 2017-02-08
Anticipated expiration: 2026-08-29

Abstract

The utility model relates to an oil gas row adopts machinery and arranges the system of adopting, and one kind concretely relates to is used for the pump but draining formula is passed a bridge that oil gas row adopted. A pump but draining formula is passed a bridge, includes coupling, outer tube, pump barrel, plunger assembly, middle coupling, lower coupling, and pump barrel and outer tube are connected respectively to top connection lower part inside and outside wall, set up the plunger assembly in the pump barrel, and the bleeder body is connected through middle coupling to the pump barrel lower extreme, and lower coupling is connected to the outer tube lower extreme. The utility model discloses the pump of having guaranteed to pass a bridge to the advantage that the deep well recovered the oil, improves the pump barrel atress condition, improves oil -well pump life, lets out the fluid in the oil pipe post when playing the pump simultaneously, has effectively prevented the pollution that pump operation process caused to the environment.

Description

A kind of oil drainage type gap bridge pump

Technical field

This utility model is related to oil gas mining machinery mining system and in particular to a kind of oil drainage type for oil gas mining Gap bridge pump.

Background technology

At present, in oil gas mining, the many stressing conditions to improve oil pump sleeve using gap bridge pump of deep-well mining, in mistake During the use of bridge pump it may appear that in oil pipe when playing pump fluid column rise with oil pipe and be raised to ground, make troubles to operation process, right Environment also has pollution；During playing pump, fluid column action of gravity is in pump barrel simultaneously, may cause the damage of gap bridge pump, increase operation, Mining cost.

Content of the invention

The purpose of this utility model be to overcome of the prior art not enough and provide a kind of working stability, prevent pollution, Draining convenient oil drainage type gap bridge pump.

The technical solution of the utility model is：

A kind of oil drainage type gap bridge pump, including upper box cupling, outer tube, pump barrel, assembly for plunger, middle box cupling, lower box cupling, above connects Head bottom inside and outside wall connects pump barrel and outer tube respectively, setting assembly for plunger in pump barrel, and pump barrel lower end is connected by middle box cupling lets out Oily device body, outer tube lower end connects lower box cupling.

Specifically, bleeder body is threaded connection setting hollow pins.

Specifically, middle box cupling lower inner wall arranges tapered thread, and tapered thread adopts BU type tension buttless thread.

The beneficial effects of the utility model are：Ensure that the advantage to deep-well oil-extraction for the gap bridge pump, improve pump barrel stressing conditions, Improve oil well pump service life, release the fluid in tubing string simultaneously when playing pump, effectively prevented pump operation process from environment is made The pollution becoming.

Brief description

Fig. 1 is structural representation of the present utility model.

On 1, box cupling 2 outer tube 3 pump barrel 4 assembly for plunger 5 middle box cupling 6 bleeder bodies 7 are empty 8 times box cuplings of heart pin.

Specific embodiment

A kind of oil drainage type gap bridge pump, including upper box cupling 1, outer tube 2, pump barrel 3, assembly for plunger 4, middle box cupling 5, lower box cupling 8, top connection bottom inside and outside wall connects pump barrel 3 and outer tube 2 respectively, and outer tube 2 lower end connects lower box cupling 8.

Setting assembly for plunger 4 in pump barrel 3, pump barrel 3 lower end is passed through middle box cupling 5 and is connected bleeder body 6, middle box cupling 5 Lower inner wall arranges tapered thread, and tapered thread adopts BU type tension buttless thread, and BU type tension buttless thread screw thread recognizes button property By force, decentralization will not damage screw thread, sealed extruded stress be a direction, change round thread Bidirectional-squeezing stress, will not thread making, Will not thread gluing, bleeder body 6 and gap bridge pump integral installation, easy to use, simple to operate, reliability is high, and bleeder body 6 leads to Cross threaded setting hollow pins 7.

During work, upper box cupling 1 connected pipes, lower box cupling 8 union tail, because lower box cupling 8 is connected with outer tube 2, by tail pipe Gravity transfer to outer tube 2 by originally acting on pump barrel 3, realize improving the force-bearing situation of pump barrel 3, improve oil well pump and use the longevity Life, bleeder body 6 setting hollow pins 7, by throwing bar, hollow pins 7 is cut off after proposing plunger, connect oil pipe inner and outer ring Sky, makes liquid in tubing string let out in well, it is to avoid rises and pollutes well site during pump operation.

Finally it should be noted that:Above example is only in order to illustrate the technical solution of the utility model rather than it is limited System；Although being described in detail to this utility model with reference to preferred embodiment, those of ordinary skill in the art should Understand：Still specific embodiment of the present utility model can be modified or some technical characteristics are carried out with equivalent replacing Change；Without deviating from the spirit of technical solutions of the utility model, it all should cover the technical scheme being claimed in this utility model In the middle of scope.

Claims

1. a kind of oil drainage type gap bridge pump, including upper box cupling, outer tube, pump barrel, assembly for plunger, middle box cupling, lower box cupling, its feature It is, top connection bottom inside and outside wall connects pump barrel and outer tube respectively, setting assembly for plunger in pump barrel, pump barrel lower end is indirect in passing through Hoop connects bleeder body, and outer tube lower end connects lower box cupling.

2. according to claim 1 a kind of oil drainage type gap bridge pump it is characterised in that bleeder body is threaded connection and sets Put hollow pins.

3. according to claim 1 a kind of oil drainage type gap bridge pump it is characterised in that the setting taper of middle box cupling lower inner wall Screw thread, tapered thread adopts BU type tension buttless thread.