Fracturing equipment having multiple electric-power supplies

Patent metadata

Field	Value
Publication number	US-12442370-B2
Application number	US-202318167676-A
Country	US
Kind code	B2
Filing date	Feb 10, 2023
Priority date	Apr 7, 2021
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

Fracturing equipment includes an electric-driven apparatus and an electric-power supply apparatus. The electric-driven apparatus includes at least one motor, at least one lubrication module, and at least one heat dissipation module. The electric-power supply apparatus includes a first electric-power supply and a second electric-power supply, where the at least one motor is powered by the first electric-power supply, and the at least one lubrication module and the at least one heat dissipation module are powered by at least one of the first electric-power supply or the second electric-power supply.

First claim

What is claimed is:

1. Fracturing equipment comprising an electric-driven apparatus and an electric-power supply apparatus, wherein:
the electric-driven apparatus comprises at least one motor configured to power at least one plunger pump, at least one lubrication module comprising a lubricating oil tank, at least one heat dissipation module, and a temperature detector,
the electric-power supply apparatus comprises a first electric-power supply and a second electric-power supply,
the at least one motor is powered by the first electric-power supply, and the at least one lubrication module and the at least one heat dissipation module are powered by at least one of the first electric-power supply or the second electric-power supply,
the plunger pump comprises a power end, the power end comprises a power end oil outlet coupled to the lubricating oil tank through an oil return pipeline, and
the temperature detector is disposed on any one of the oil return pipeline, the power end oil outlet, and the lubricating oil tank, and is configured to detect a temperature of lubricating oil flowing from the power end into the oil return pipeline.

2. The fracturing equipment according to claim 1 , wherein the second electric-power supply is coupled to the first electric-power supply, and configured to supply power to the first electric-power supply.

3. The fracturing equipment according to claim 1 , further comprising a grounding system,
wherein the grounding system comprises a first grounding terminal which is spaced from each of the electric-driven apparatus and the electric-power supply apparatus by a preset distance, and
at least one of the electric-driven apparatus and the electric-power supply apparatus are connected to the first grounding terminal, and the first grounding terminal is configured to ground the at least one of the electric-driven apparatus and the electric-power supply apparatus.

4. The fracturing equipment according to claim 3 , wherein the electric-power supply apparatus further comprises an electric-power converter device electrically connected with the first electric-power supply, and an electric-power distribution device electrically connected with the electric-power converter device;
at least one of the electric-power converter device and the electric-power distribution device is connected to the first grounding terminal.

5. The fracturing equipment according to claim 4 , wherein:
the grounding system comprises a first grounding wire; and
at least one of the electric-power converter device and the electric-power distribution device is connected to the first grounding wire and is connected to the first grounding terminal through the first grounding wire.

6. The fracturing equipment according to claim 5 , wherein:
the first grounding wire is configured to surround the at least one of the electric-power converter device and the electric-power distribution device, and a planar shape of the first grounding wire is a closed loop.

7. The fracturing equipment according to claim 1 , wherein:
the lubricating oil tank defines an accommodation space configured for storing lubricating oil,
the at least one lubrication module further comprises at least one lubrication pump having a lubrication pump oil inlet and a lubrication pump oil outlet that are coupled to each other, and at least one lubrication motor configured to provide power for the at least one lubrication pump, wherein the lubrication pump oil inlet is coupled to the accommodation space of the lubricating oil tank.

8. The fracturing equipment according to claim 7 ,
wherein the lubrication pump oil inlet of the lubrication pump is directly exposed in the accommodation space of the lubricating oil tank.

9. The fracturing equipment according to claim 7 , wherein a portion of the at least one lubrication pump is immersed in the lubricating oil in the lubricating oil tank.

10. The fracturing equipment according to claim 7 , wherein the lubrication pump oil inlet of the at least one lubrication pump is immersed in the lubricating oil in the lubricating oil tank.

11. The fracturing equipment according to claim 7 , wherein:
the at least one lubrication module comprises at least one transmission device connecting the at least one lubrication motor to the at least one lubrication pump;
at least a portion of at least one of the lubrication motor and the lubrication pump is located in the accommodation space; and
at least a portion of the at least one transmission device is located in the accommodation space.

12. The fracturing equipment according to claim 11 , wherein the at least one lubrication motor is configured to drive the at least one lubrication pump to deliver the lubricating oil to the at least one plunger pump through at least one oil inlet pipeline.

13. The fracturing equipment according to claim 12 ,
wherein the plunger pump further comprises a hydraulic end,
wherein the power end further comprises at least one power end oil inlet,
wherein the lubrication pump oil outlet of the at least one lubrication pump is coupled to the at least one power end oil inlet through the at least one oil inlet pipeline.

14. The fracturing equipment according to claim 13 , wherein the at least one heat dissipation module is disposed on the at least one oil inlet pipeline and configured to cool the lubricating oil in the at least one oil inlet pipeline.

15. The fracturing equipment according to claim 14 , wherein the at least one heat dissipation module comprises a first radiator spaced apart from the plunger pump, the first radiator being configured to dissipate heat from the lubricating oil in the at least one oil inlet pipeline.

16. The fracturing equipment according to claim 15 , wherein:
the first radiator comprises a heat dissipation pipe and a fan, and the fan is configured to blow air to the heat dissipation pipe to dissipate heat.

17. The fracturing equipment according to claim 14 , further comprising a control system connected to the temperature detector and the at least one lubrication module, and configured to control the at least one lubrication module,
wherein the control system is configured to control the at least one lubrication motor to keep on operating when the plunger pump stops operating and the temperature detected by the temperature detector is greater than a first preset value.

18. The fracturing equipment according to claim 17 , wherein the control system is configured to control the plunger pump to stop operating when the temperature detected by the temperature detector is greater than the first preset value and that an alarm sends an alert.

Assignees

• Yantai Jereh Petroleum Equipment & Technologies Co Ltd

Inventors

• Liu Kaishen
• Li Shouzhe
• Mao Zhuqing
• Chang Sheng
• Cui Shuzhen
• Lv Liang
• Zhong Jifeng
• Fu Shanwu
• Lan Chunqiang
• Du Ruijie
• Zhang Jian
• Ji Xiaolei

Classifications

• F16N13/06

  Actuation of lubricating-pumps · CPC title

• F04B49/02

  Stopping, starting, unloading or idling control · CPC title

• E21B43/2607 Primary

  Surface equipment specially adapted for fracturing operations · CPC title

• F16N39/02

  by cooling (heat-exchangers in general F28) · CPC title

• F16N7/38

  with a separate pump; Central lubrication systems · CPC title