CN211202312U - Drilling fluid solid-liquid two-phase separation pump - Google Patents

Abstract

The utility model discloses a drilling fluid solid-liquid two-phase separation pump, including shell, drive assembly, impeller and filtering component, the impeller with the filtering component is coaxial to be placed in the shell, the drive assembly install in the shell, and drive the impeller with the filtering component rotates, the drilling fluid import of shell faces the filtering component, the drilling fluid export of shell and the impeller all are located the filtering component is kept away from one side of the drilling fluid import; the problem of among the prior art drilling fluid solid-liquid two-phase separation pump impeller and the rock debris between friction and collision lead to impeller life short is solved.

Description

Drilling fluid solid-liquid two-phase separation pump

Technical Field

The utility model relates to a drilling fluid separation pump technical field, concretely relates to two-phase separation pump of drilling fluid solid-liquid.

Background

During oil drilling, drilling fluid is used to carry well debris away from the well bottom and to cool and lubricate the bottom hole assembly. During the use of the drilling fluid solid-liquid two-phase separation pump, most of the drilling fluid entering from the inlet of the separation pump is filtered through a filter screen in advance, however, a lot of rock debris are still mixed in the drilling fluid entering the separation pump, and during the rotation of the impeller of the drilling fluid solid-liquid two-phase separation pump, the rock debris and the impeller are rubbed and collided, so that the service life of the impeller is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a drilling fluid solid-liquid double-phase separation pump, solved among the prior art friction and collision between the impeller of the drilling fluid solid-liquid double-phase separation pump and the detritus, lead to the problem that impeller life is short.

In order to solve the technical problem, the utility model provides a drilling fluid solid-liquid double-phase separation pump, including shell, drive assembly, impeller and filtering component, the impeller with place in the filtering component is coaxial the shell, drive assembly install in on the shell, and the drive the impeller with filtering component rotates, the drilling fluid import of shell faces right filtering component, the drilling fluid export of shell with the impeller all is located filtering component keeps away from drilling fluid import one side.

The utility model has the advantages that: be different from prior art's condition, the utility model discloses a coaxial setting is at drive assembly output epaxial impeller and filter assembly, and the drilling fluid that the drilling fluid import got into can contact with the impeller after filter assembly filters again, avoids detritus and impeller contact, prolongs the life of impeller, and filter assembly is rotatory, and the increase can reduce drive assembly's power, reduces the power consumption to the suction of drilling fluid import department drilling fluid.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a filter assembly according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides a drilling fluid solid-liquid two-phase separation pump, including shell 100, drive assembly 200, impeller 300 and filter assembly 400, impeller 300 with filter assembly 400 is placed in coaxial shell 100, drive assembly 200 install in on the shell 100, and the drive impeller 300 with filter assembly 400 rotates, the drilling fluid import 121 of shell 100 is just facing filter assembly 400, the drilling fluid export 111 of shell 100 with impeller 300 all is located filter assembly 400 keeps away from drilling fluid import 121 one side.

The outer shell 100 in this embodiment includes a pump shell 110 and the connecting shell 120, the pump shell 110 and the connecting shell 120 are detachably connected, the pump shell 110 and the connecting shell 120 are communicated, the impeller 300 is disposed in the pump shell 110, the filter assembly 400 is disposed in the connecting shell 120, the drilling fluid inlet 121 is disposed on one side of the pump shell 110 away from the connecting shell 120, the drilling fluid outlet 111 is disposed on the pump shell 110, the driving assembly 200 is mounted on the pump shell 110, and an output shaft of the driving assembly 200 sequentially passes through the pump shell 110, the impeller 300 and the filter assembly 400.

The pump casing 110 and the connecting casing 120 are detachably connected, for example, by a flange, so that the connecting casing 120 can be conveniently taken down, rock debris on the filter assembly 400 can be cleaned at regular time, and the pump casing 110 and the connection can be sealed by a sealing ring.

Preferably, the casing 100 further includes a partition 130 and a limiting plate, the partition 130 is installed inside the pump casing 110, the limiting plate is fixed on the partition 130, the rotating shaft 220 sequentially passes through the partition 130 and the limiting plate, and the rotating shaft 220 is slidably connected with a bearing installed on the limiting plate.

An installation groove is formed in the outer wall of the pump casing 110, an observation window 122 is embedded in the installation groove, the observation window 122 faces the filter assembly 400, and the condition of rock debris accumulated on the filter assembly 400 can be observed through the observation window 122.

The driving assembly 200 in this embodiment includes a driving member 210 and a rotating shaft 220, the driving member 210 is installed on the housing 100, an output end of the driving member 210 is connected to the rotating shaft 220, the driving member 210 drives the rotating shaft 220 to rotate, one end of the rotating shaft 220 extends into the housing 100, and the impeller 300 and the filtering assembly 400 are both sleeved on the rotating shaft 220.

The driving member 210 is a motor, and an output shaft of the motor is connected to the rotating shaft 220.

Preferably, the impeller 300 is in threaded connection with the rotating shaft 220, the rotating shaft 220 is in threaded connection with a limiting block 310, one side of the impeller 300 is abutted against a shaft shoulder of the rotating shaft 220, and the other side of the impeller 300 is abutted against the limiting block 310, and it can be understood that the connection mode between the rotating shaft 220 and the impeller 300 is not limited as long as the rotating shaft 220 can drive the impeller 300 to rotate.

In this embodiment the filter assembly 400 includes fixed block 410, solid fixed ring 420, connecting rod 430 and filter screen 440, fixed block 410 with gu fixed ring 420 coaxial arrangement, fixed block 410 with the output shaft of drive assembly 200 can dismantle the connection, fixed block 410 with gu pass through between the fixed ring 420 connecting rod 430 connects, fixed block 410 with gu form the filtration clearance between the fixed ring 420, filter screen 440 lays in the filtration clearance.

Wherein, filtering component 400 is umbelliform, the great one end of filtering component 400 opening faces directly drilling fluid import 121, gu fixed ring 420's outer wall pastes in the inner wall of shell 100, the quantity of connecting rod 430 is a plurality of, and is a plurality of connecting rod 430 is followed gu fixed ring 420 circumference evenly arranges, every connecting rod 430's one end all with gu fixed ring 420 connects, every connecting rod 430's the other end all with fixed block 410 connects, filter screen 440 is connected with two adjacent relative one sides of connecting rod 430, gu fixed ring 420 and fixed block 410 all around respectively.

Preferably, the fixing ring 420 is sleeved at one end of the output shaft of the driving assembly 200, one end of the fixing ring 420 is abutted against the shoulder of the output shaft of the driving assembly 200, and the other end of the fixing ring 420 is abutted against the screw mounted on the output shaft of the driving assembly 200, it can be understood that the connection mode of the fixing ring 420 and the rotating shaft 220 is not limited, and the connection stability is preferred.

It will be appreciated that the filter assembly 400 in this embodiment serves to protect the impeller 300 by filtering the drilling fluid through commercially available filter devices before it flows into the pump.

The working process is as follows: the motor is started, the rotating shaft 220 is driven to rotate, the rotating shaft 220 simultaneously drives the impeller 300 and the filtering component 400 to rotate, the drilling fluid in the shell 100 generates a rotary suction force, the drilling fluid at the drilling fluid inlet 121 is sucked into the shell 100 and is discharged from the drilling fluid outlet 111, after the drilling fluid enters the drilling fluid inlet 121, the drilling fluid is firstly discharged from the drilling fluid outlet 111 through the impeller 300 after the rock debris is filtered out through the filter screen 440, through the observation window 122, the condition of the rock debris accumulated on the filter screen 440 can be observed, if the drilling fluid is excessive, the connecting shell 120 is disassembled, and the rock debris on the filter screen 440 can be cleaned.

Be different from prior art's condition, the utility model discloses a coaxial setting is at drive assembly 200 output epaxial impeller 300 and filter assembly 400, and the drilling fluid that drilling fluid import 121 got into can contact with impeller 300 again after filter assembly 400 filters, avoids detritus and impeller 300 contact, prolongs impeller 300's life, and filter assembly 400 is rotatory, and the increase is to the suction of drilling fluid import 121 department drilling fluid, can reduce drive assembly 200's power, reduces the power consumption.

It should be noted that the above embodiments belong to the same utility model concept, and the description of each embodiment has its emphasis, and the description of each embodiment is not described in detail, and reference may be made to the description of other embodiments.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (8)

1. The drilling fluid solid-liquid two-phase separation pump is characterized by comprising a shell, a driving assembly, an impeller and a filtering assembly, wherein the impeller and the filtering assembly are coaxially arranged in the shell, the driving assembly is installed on the shell and drives the impeller and the filtering assembly to rotate, a drilling fluid inlet of the shell is opposite to the filtering assembly, and a drilling fluid outlet of the shell and the impeller are both positioned on one side, far away from the drilling fluid inlet, of the filtering assembly.

2. The drilling fluid solid-liquid two-phase separation pump according to claim 1, wherein the outer shell comprises a pump shell and a connecting shell, the pump shell and the connecting shell are detachably connected, the pump shell is communicated with the connecting shell, the impeller is arranged in the pump shell, the filter assembly is arranged in the connecting shell, the drilling fluid inlet is arranged on one side of the pump shell, which is far away from the connecting shell, the drilling fluid outlet is arranged on the pump shell, the driving assembly is arranged on the pump shell, and an output shaft of the driving assembly sequentially penetrates through the pump shell, the impeller and the filter assembly.

3. The drilling fluid solid-liquid two-phase separation pump as claimed in claim 2, wherein an installation groove is formed in the outer wall of the pump shell, an observation window is embedded in the installation groove in a clamped mode, and the observation window faces the filter assembly.

4. The drilling fluid solid-liquid two-phase separation pump according to claim 1, wherein the driving assembly comprises a driving member and a rotating shaft, the driving member is mounted on the housing, an output end of the driving member is connected with the rotating shaft, the driving member drives the rotating shaft to rotate, one end of the rotating shaft extends into the housing, and the impeller and the filtering assembly are both sleeved on the rotating shaft.

5. The drilling fluid solid-liquid two-phase separation pump according to claim 4, wherein the impeller is in threaded connection with the rotating shaft, a limiting block is in threaded connection with the rotating shaft, one side of the impeller is abutted against a shaft shoulder of the rotating shaft, and the other side of the impeller is abutted against the limiting block.

6. The drilling fluid solid-liquid two-phase separation pump according to claim 1, wherein the filtering assembly comprises a fixing block, a fixing ring, a connecting rod and a filter screen, the fixing block and the fixing ring are coaxially arranged, the fixing block is detachably connected with an output shaft of the driving assembly, the fixing block is connected with the fixing ring through the connecting rod, a filtering gap is formed between the fixing block and the fixing ring, and the filter screen is laid in the filtering gap.

7. The drilling fluid solid-liquid two-phase separation pump according to claim 6, wherein the filter assembly is umbrella-shaped, one end of the filter assembly with a larger opening faces the drilling fluid inlet, the outer wall of the fixing ring is attached to the inner wall of the housing, the number of the connecting rods is multiple, the connecting rods are evenly arranged along the circumferential direction of the fixing ring, one end of each connecting rod is connected with the fixing ring, the other end of each connecting rod is connected with the fixing block, and the periphery of the filter screen is connected with one side, opposite to the two adjacent connecting rods, of the fixing ring and the fixing block.

8. The drilling fluid solid-liquid two-phase separation pump according to claim 6, wherein the fixing ring is sleeved at one end of the output shaft of the driving assembly, one end of the fixing ring abuts against the shaft shoulder of the output shaft of the driving assembly, and the other end of the fixing ring abuts against a screw mounted on the output shaft of the driving assembly.

Images