Variable-speed integrated machine and wellsite apparatus

Patent metadata

Field	Value
Publication number	US-12313059-B2
Application number	US-202117559522-A
Country	US
Kind code	B2
Filing date	Dec 22, 2021
Priority date	Oct 30, 2019
Publication date	May 27, 2025
Grant date	May 27, 2025

Abstract

A variable-speed integrated machine and a wellsite apparatus are disclosed. The variable-speed integrated machine includes: a driving device which includes an electric motor and a housing; an inversion device which is disposed on the housing and electrically connected with the electric motor; an inversion heat dissipating device which is disposed at one side of the inversion device away from the housing and configured to perform heat dissipation on the inversion device in a liquid-cooling heat dissipating way; and a driving heat dissipating device, at least one portion of the driving heat dissipating device being disposed on the housing and configured to perform heat dissipation on the driving device in at least one selected from the group of a liquid-cooling heat dissipating way and an air-cooling heat dissipating way, the inversion device and at least one portion of the driving heat dissipating device are disposed on a same side of the housing.

First claim

The invention claimed is:

1. A variable-speed integrated machine, comprising:
a driving device, comprising an electric motor and a housing configured for accommodating the electric motor;
an inversion device, disposed on an outside of the housing and electrically connected with the electric motor;
an inversion heat dissipating device, disposed at one side of the inversion device away from the housing and the electric motor accommodated therein, and configured to perform heat dissipation on the inversion device in a liquid-cooling heat dissipating way;
a driving heat dissipating device, at least one portion of the driving heat dissipating device being disposed on the outside of the housing and configured to perform heat dissipation on the driving device, wherein the driving heat dissipating device comprises an air-cooling heat dissipating mechanism, the air-cooling heat dissipating mechanism comprises an air outlet facing a direction away from the inversion device;
wherein the air-cooling heat dissipating mechanism is configured to suction air into the housing and discharge the air through the air outlet, and the inversion device is not in a path of air flow;
wherein the inversion device and at least one portion of the driving heat dissipating device are disposed on a same side of the housing;
wherein the housing defines a cavity, the cavity is configured to accommodate the electric motor, the air-cooling heat dissipating mechanism further comprises an air-output assembly communicated with the cavity, and the air-output assembly and the inversion device are disposed on the same side of the housing;
wherein the electric motor comprises an output shaft, the output shaft extends out from the housing, the housing comprises a first side and a second side opposite to each other and the first and second sides are both parallel to the output shaft, the air-output assembly and the inversion device are disposed on the first side;
wherein the air-cooling heat dissipating mechanism further comprises an air-input assembly, the air-input assembly comprises an air inlet disposed on the second side of the housing, the air inlet is configured as being communicated with the cavity, such that the air entering the cavity from the air inlet is discharged from the air-output assembly after passing through the electric motor.

2. The variable-speed integrated machine according to claim 1 , wherein the air-cooling heat dissipating mechanism comprises at least two air-output assemblies, and the at least two air-output assemblies have same air-output direction or different air-output directions.

3. The variable-speed integrated machine according to claim 1 ,
wherein the air-output assembly comprises:
a heat dissipating fan, disposed on the housing;
a fan volute, disposed between the heat dissipating fan and the housing; and
an exhaust-air duct,
wherein a first side of the fan volute is communicated with the heat dissipating fan, a second side of the fan volute is communicated with the cavity, a third side of the fan volute is communicated with the exhaust-air duct, the electric motor comprises an output shaft, and the first side and the second side are opposite to each other and the first and second sides are both parallel to the output shaft, and
wherein the heat dissipating fan is configured to suction air in the cavity into the fan volute, and the air is discharged through the exhaust-air duct.

4. The variable-speed integrated machine according to claim 3 ,
wherein the exhaust-air duct comprises an air-outlet cover plate, rotatably connected to the air outlet and configured to cover the air outlet; and
wherein the air outlet faces away from the housing.

5. The variable-speed integrated machine according to claim 1 ,
wherein the air-input assembly comprises:
a groove, disposed at the second side of the housing, wherein the air inlet is disposed in the groove; and
a protection mesh, covering the air inlet,
wherein a plane where the protection mesh is located is not coplanar with an outer surface of the second side of the housing, and the plane where the protection mesh is closer to the electric motor than the outer surface of the second side of the housing.

6. The variable-speed integrated machine according to claim 1 ,
wherein the driving heat dissipating device comprises: a liquid-cooling heat dissipating mechanism, the liquid-cooling heat dissipating mechanism comprises:
a first cooling assembly, disposed in the cavity defined by the housing, the cavity is configured to accommodate the electric motor;
a first fan assembly, disposed on the housing; and
a first cooling liquid storage assembly, disposed between the first fan assembly and the housing, the first cooling liquid storage assembly is communicated with the first cooling assembly and configured to supply cooling liquid to the first cooling assembly, and the first fan assembly is configured to perform the heat dissipation on the cooling liquid in the first cooling liquid storage assembly,
wherein the first cooling liquid storage assembly, the first fan assembly and the inversion device all are disposed on the same side of the housing.

7. The variable-speed integrated machine according to claim 6 , wherein:
the inversion heat dissipating device and the driving heat dissipating device share the first cooling liquid storage assembly and the first fan assembly; and
the inversion heat dissipating device comprises an inversion cooling plate disposed at one side of the inversion device away from the housing, the shared first fan assembly is disposed at one side of the inversion cooling plate away from the housing, and the shared first cooling liquid storage assembly is disposed between the shared first fan assembly and the inversion cooling plate.

8. The variable-speed integrated machine according to claim 7 , wherein:
the electric motor comprises an output shaft, the output shaft extends out from the housing, and the housing comprises a first side and a second side opposite to each other in a direction perpendicular to the output shaft; and
the shared first cooling liquid storage assembly, the shared first fan assembly, the inversion device and the inversion cooling plate all are disposed on the first side of the housing, and the inversion device covers partial or whole outer surface of the first side of the housing.

9. The variable-speed integrated machine according to claim 7 ,
wherein the inversion heat dissipating device comprises:
an inversion cooling passage, disposed in the inversion cooling plate and comprises an inversion cooling passage inlet and an inversion cooling passage outlet,
wherein the first cooling assembly comprises:
a first cooling passage, at least one portion of the first cooling passage is disposed in the electric motor, and the first cooling passage comprises a first cooling passage inlet and a first cooling passage outlet,
wherein the first cooling liquid storage assembly comprises: a cooling liquid storage chamber, and the cooling liquid storage chamber comprises:
an output end, configured to output the cooling liquid to the inversion cooling passage and the first cooling passage; and
an input end, configured to receive the cooling liquid flowing back from the inversion cooling passage and the first cooling passage,
wherein the inversion cooling passage inlet and the first cooling passage inlet are connected with the output end respectively, and the inversion cooling passage outlet and the first cooling passage outlet are connected with the input end respectively.

10. The variable-speed integrated machine according to claim 7 ,
wherein the inversion heat dissipating device comprises:
an inversion cooling passag

Assignees

• Yantai Jereh Petroleum Equipment & Technologies Co Ltd

Inventors

• Cui Shuzhen
• Zhang Rikui
• Chang Sheng

Classifications

• F04B53/16

  Casings; Cylinders; Cylinder liners or heads; Fluid connections · CPC title

• F04D25/06

  the pump being electrically driven (F04D25/08 takes precedence) · CPC title

• E21B43/2607

  Surface equipment specially adapted for fracturing operations · CPC title

• F04B17/03 Primary

  driven by electric motors · CPC title

• F04B53/04

  Draining · CPC title