CN201916179U

CN201916179U - Outlet buffer for plunger pump

Info

Publication number: CN201916179U
Application number: CN2010206786890U
Authority: CN
Inventors: 姚博; 熊国良; 杨洪亮; 罗彬�; 张际庆; 聂体云; 刘城; 王超
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-24
Filing date: 2010-12-24
Publication date: 2011-08-03
Anticipated expiration: 2020-12-24

Abstract

An outlet buffer for a plunger pump mainly comprises two semispherical cavities, a water inlet pipe, a water outlet pipe, V-shaped cylinders and baffles, wherein center holes 7 are formed on the semispherical cavities 4 along the top ends of the semispherical surfaces; the V-shaped cylinders 2 in a horn mouth shape are welded at one end of the water inlet pipe 1 and one end of the water outlet pipe 5; the horn-mouth ends of the water inlet pipe 1 and the water outlet pipe 5 are plugged by the baffles 3; four uniformly-distributed water through holes 6a and 6b are respectively formed on the circumferential walls of the water inlet V-shaped cylinder 2 and the water outlet V-shaped cylinder 2; the end of the water inlet pipe 1, at which the baffler 3 is welded, is opposite to the end of the water outlet pipe 5, at which the baffle 3 is welded; the end of the water inlet pipe 1 and the end of the water outlet pipe 5 are arranged in the two semispherical cavities 4; the other ends of the water inlet pipe 1 and the water outlet pipe 5 are respectively inserted into the center holes 7 of the semispherical cavities 4 for welding; and the two semispherical cavities 4 are buckled and welded into a sphere. The outlet buffer has a scientific and practical structure and reliable performance; by three-stage buffer, the pulsation of the pressure due to non-uniformity of liquid flow speed is effectively eliminated, the service lives of the plunger pump, a pipe valve and an instrument are prolonged, potential safety hazard is eliminated, the material consumption is reduced, the operation efficiency of the pump is improved and the considerable economic and social benefits are obtained.

Description

The plunger pump output port buffer

Technical field

The utility model relates to a kind of plunger pump of oil-field flooding production usefulness, is that the high-pressure plunger pump media outlet slows down the buffer that medium impacts in the manifold, belongs to water flooding and produces plunger pump auxiliary device technical field.

Background technique

Be to be unable to do without water filling to produce in oil field development, the high-pressure service pump that the oil field stratum water filling is adopted is reciprocating plunger pump.Under motive drive, cause the plunger to-and-fro motion, constantly change the fluid cylinder volume, suck and discharge process thereby finish.Because of strata pressure higher, in order to satisfy the needs of water injection pressure, so the outlet pressure of plunger pump is very high.The continual impact of high-pressure water flow causes bigger infringement to outlet line, valve, instrument and other facility, pressure surge is bigger, does not reach the purpose of steady water filling, can cause that simultaneously putting in order the pump vibrations transfinites, shorten the working life of plunger pump and annex thereof greatly, exist bigger potential safety hazard.

Summary of the invention

The purpose of this utility model provides a kind of high-pressure plunger pump output port buffer, it is inhomogeneous and cause the pulsation of outlet pressure to eliminate plunger pump outlet liquid flow velocity effectively, the impact force of outlet liquid is slowed down widely, prolong the working life of plunger pump, pipeline, valve and instrument, eliminate safe hidden trouble, reduce materials consumption, improve pump operation efficient, society and economic benefit are considerable.

The utility model is by two hemisphere cavitys, inlet tube and outlet tube, and the V-type tube, baffle plate is formed.The hemisphere cavity has center hole along the hemisphere face top; Inlet tube and outlet tube one end is welded with the V-type tube of bell mouth shape, and baffle plate is with the flare end shutoff of intake pipe and outlet pipe; On inlet/outlet V-type tube perisporium, open four equally distributed through holes; Intake pipe is welded with baffle plate end and outlet pipe, and to be welded with the baffle plate end relative, places in the two hemispheres cavity, and intake pipe and outlet pipe insert respectively in the hemisphere cavity center hole, weld again, and two hemisphere snappings welderings are a spheroid.

Originally make the model utility technical characterstic:

1. slow down impact in order to reduce flow velocity fast, the V-type plate end of described inlet tube and outlet tube is a bell mouth shape, thereby changes the stream shape of liquid effectively, is tangent direction to disperseing all around.

2. described cavity is spherical, and liquid is tangent direction and flows in inner chamber, eliminated the flow of liquid and the inequality of speed, when reaching certain pressure in the cavity, evenly hydraulic pressure is gone out by osculum, plays the effect of buffering effectively.

3. the technical characterstic of the utility model maximum carries out three grades of bufferings exactly, at first is in the v-shaped cavity of water inlet, in the ball-type cavity, is once more in water outlet v-shaped cavity body successively, and is splendid by three grades of cushioning effects.

4.V design has four equally distributed through holes on the template perisporium, has satisfied the plunger pump delivery widely.

5. two hemispheres is the casting of the thick high-quality steel of 40mm and forms, and compressive strength is higher, and the hemisphere section all designs bigger groove, is enough to satisfy the intensity of welding, and it is safe and reliable that the spheroid compressive strength reaches 45.0Mp.

Description of drawings

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

Fig. 2 is the utility model hemisphere cavity schematic representation;

Embodiment

Referring to Fig. 1, Fig. 2, the utility model consists of the following components: intake pipe 1, V-

type tube

2,3, two hemisphere cavitys 4 of baffle plate, outlet pipe 5.

Plunger pump output port buffer structural feature: an end of intake pipe 1 and outlet pipe 5 welds the V-type tube 2 of bell mouth shape respectively, respectively have four equally distributed through

hole

6a and 6b on the perisporium of water-in and water-out V-type tube 2, baffle plate 3 soldering and sealing make it to become one at the big opening end of the V-type tube 2 of bell mouth shape; The end that intake pipe 1 is welded with baffle plate 3 is relative with the end that outlet pipe 5 is welded with baffle plate 3, the two ends symmetry is at a distance of about 150mm, place respectively in the two hemispheres cavity, intake pipe 1 passes from the top end center hole 7 of hemisphere cavity 4 respectively with the other end of outlet pipe 5, and intake pipe 1 and outlet pipe 5 weld with center hole 7 places of hemisphere cavity 4; Two hemisphere cavity snapping spheroids that become a sealing welded together.

During use, the plunger pump output port buffer is welded on the outlet line of plunger pump, liquid enters in the cavity of V-type tube 2 and baffle plate 3 from

intake pipe

1,6a has changed the flow of liquid shape by the import through hole, disperse to enter in the circular arc type cavity of buffering ball, liquid prolongs tangent line and flows in the circular arc type cavity, the flow of liquid and the inequality of speed have been eliminated effectively, full of liquid liquid under the effect of pressure enters in the buffering cavity of outer pipe 5 through outlet through hole 6b in the buffering ball cavity, enters in the outlet line at last.

Claims

1. plunger pump output port buffer, by intake pipe (1), V-type tube (2), baffle plate (3), two hemisphere cavitys (4), outlet pipe (5) is formed, it is characterized in that: an end of intake pipe (1) and outlet pipe (5) welds the V-type tube (2) of bell mouth shape respectively, respectively have four equally distributed through hole 6a and 6b on the perisporium of water-in and water-out V-type tube (2), baffle plate (3) soldering and sealing makes it to become one at the big opening end of the V-type tube (2) of bell mouth shape; The end that intake pipe (1) is welded with baffle plate (3) is relative with the end that outlet pipe (5) is welded with baffle plate (3), the two ends symmetry is at a distance of about 150mm, place respectively in the two hemispheres cavity, intake pipe (1) passes from the top end center hole (7) of hemisphere cavity (4) respectively with the other end of outlet pipe (5), and intake pipe (1) and outlet pipe (5) are located to weld with the center hole (7) of hemisphere cavity (4); Two hemisphere cavity snapping spheroids that become a sealing welded together.