Fracturing apparatus and control method thereof, fracturing system

Patent metadata

Field	Value
Publication number	US-12320344-B2
Application number	US-202117493573-A
Country	US
Kind code	B2
Filing date	Oct 4, 2021
Priority date	Apr 20, 2021
Publication date	Jun 3, 2025
Grant date	Jun 3, 2025

Abstract

A fracturing apparatus, a control method of the fracturing apparatus and a fracturing system. The fracturing apparatus includes a plunger pump, a prime mover, a clutch and a clutch hydraulic system. The prime mover includes a power output shaft, and the clutch includes a first connection portion, a second connection portion and a clutch portion between the first connection portion and the second connection portion. The power end of the plunger pump includes a power input shaft, the first connection portion is connected with the power input shaft, the second connection portion is connected with the power output shaft of the prime mover, and the clutch hydraulic system is configured to provide hydraulic oil to the clutch. The fracturing apparatus further includes a first pressure sensor arranged in the clutch hydraulic system and configured to detect the hydraulic pressure of the clutch hydraulic system.

First claim

The invention claimed is:

1. A fracturing apparatus, comprising:
a plunger pump, comprising a power end and a hydraulic end;
a prime mover, comprising a power output shaft;
a clutch, comprising a first connection portion, a second connection portion and a clutch portion between the first connection portion and the second connection portion; and
a clutch hydraulic system, configured to provide hydraulic oil to the clutch,
wherein the power end of the plunger pump comprises a power input shaft, the first connection portion is connected with the power input shaft, the second connection portion is connected with the power output shaft of the prime mover,
the fracturing apparatus further comprises a first pressure sensor configured to detect a hydraulic pressure of the clutch hydraulic system, wherein when the hydraulic pressure of the clutch hydraulic system is lower than a first pressure threshold, the clutch is configured to disengage, and
wherein the clutch is configured to disengage if a ratio of a rotation speed of the power input shaft to a rotation speed of the power output shaft is smaller than a first preset ratio or greater than a second preset ratio.

2. The fracturing apparatus according to claim 1 , further comprising:
a second pressure sensor,
wherein the hydraulic end of the plunger pump comprises a liquid output end, and the second pressure sensor is configured to detect a pressure of liquid output by the liquid output end,
wherein when the pressure of the liquid output by the liquid output end is greater than a second pressure threshold, the clutch is configured to disengage.

3. The fracturing apparatus according to claim 2 , further comprising:
a discharge manifold, connected with the liquid output end,
wherein the second pressure sensor is arranged on the liquid output end or the discharge manifold.

4. The fracturing apparatus according to claim 1 , wherein the plunger pump is a first plunger pump, the clutch is a first clutch, and the clutch hydraulic system is a first clutch hydraulic system, and the fracturing apparatus further comprises a second plunger pump, a second clutch, a second clutch hydraulic system, and a second pressure sensor,
wherein the second clutch hydraulic system is coupled to the second clutch, and the second clutch is disposed between the second plunger pump and the prime mover, and
wherein the second pressure sensor is configured to detect a hydraulic pressure of the second clutch hydraulic system.

5. The fracturing apparatus according to claim 1 , further comprising:
a first temperature sensor, configured to detect a temperature of the clutch, wherein when the temperature of the clutch is greater than a first temperature threshold, the clutch is configured to disengage.

6. The fracturing apparatus according to claim 5 , further comprising:
a second temperature sensor, configured to detect a temperature of hydraulic oil in the clutch hydraulic system, wherein when the temperature of the hydraulic oil in the clutch hydraulic system is greater than a second temperature threshold, the clutch is configured to disengage.

7. The fracturing apparatus according to claim 1 , further comprising:
a first vibration sensor, configured to detect vibration of the plunger pump, and
a plunger pump base, wherein the plunger pump is arranged on the plunger pump base, and the first vibration sensor is arranged on the plunger pump or the plunger pump base,
wherein when the vibration of the plunger pump is greater than a first vibration threshold, the clutch is configured to disengage.

8. The fracturing apparatus according to claim 1 , further comprising:
a second vibration sensor, configured to detect vibration of the prime mover, and
a prime mover base, wherein the prime mover is arranged on the prime mover base, and the second vibration sensor is arranged on the prime mover or the prime mover base,
wherein when the vibration of the prime mover is greater than a second vibration threshold, the clutch is configured to disengage.

9. The fracturing apparatus according to claim 1 , further comprising:
a first rotation speed sensor, configured to detect the rotation speed of the power input shaft of the plunger pump; and
a second rotation speed sensor, configured to detect the rotation speed of the power output shaft of the prime mover,
wherein when the rotation speed of the power input shaft of the plunger pump and the rotation speed of the power output shaft of the prime mover do not conform to a transmission ratio, the clutch is configured to disengage.

10. The fracturing apparatus according to claim 1 , further comprising:
a planetary gear box, comprising an input gear shaft,
wherein the first connection portion of the clutch is directly connected with the input gear shaft, and the power input shaft is directly connected with the planetary gear box.

11. The fracturing apparatus according to claim 1 , wherein the prime mover comprises one of a diesel engine, an electric motor, or a turbine engine.

12. A fracturing system, comprising:
the fracturing apparatus according to claim 1 ;
a control system configured to control the clutch in the fracturing apparatus; and
a remote control unit communicated with the control system.

13. A control method for controlling a fracturing apparatus, the fracturing apparatus comprising:
a plunger pump comprising a power end and a hydraulic end;
a prime mover comprising a power output shaft;
a clutch comprising a first connection portion, a second connection portion, and a clutch portion between the first connection portion and the second connection portion;
a clutch hydraulic system configured to provide hydraulic oil to the clutch, wherein the power end of the plunger pump comprises a power input shaft, the first connection portion is connected with the power input shaft, and the second connection portion is connected with the power output shaft of the prime mover; and
a first pressure sensor,
the control method comprising:
detecting, by the first pressure sensor, a hydraulic pressure of the clutch hydraulic system;
controlling the clutch to disengage if the hydraulic pressure of the clutch hydraulic system is lower than a first pressure threshold;
detecting a first rotation speed of the power input shaft of the plunger pump;
detecting a second rotation speed of the power output shaft of the prime mover; and
calculating a ratio of the first rotation speed and the second rotation speed, and controlling the clutch to disengage if the ratio is smaller than a first preset ratio or greater than a second preset ratio.

14. The control method according to claim 13 , further comprising:
detecting, by a second pressure sensor, a pressure of liquid output by the plunger pump; and
controlling the clutch to disengage if the pressure of the liquid output by the plunger pump is greater than a second pressure threshold.

15. The control method according to claim 13 , further comprising:
detecting a temperature of the clutch; and
controlling the clutch to disengage if the temperature of the clutch as detected is higher than a first temperature threshold.

16. The control method according to claim 15 , further comprising:
detecting a temperature of hydraulic oil in the clutch hydraulic system; and
controlling the clutch to disengage if the temperature of the hydraulic oil in the clutch hydraulic system as detected is higher than a second temperature threshold.

17. The control method according to claim 13 , further comprising:
detecting a vibration of the plunger pump; a

Assignees

• Yantai Jereh Petroleum Equipment & Technologies Co Ltd

Inventors

• Zhong Jifeng
• Lv Liang
• Li Xincheng
• Wu Yipeng

Classifications

• F04B39/066

  Cooling by ventilation · CPC title

• F04B39/0284

  Constructional details, e.g. reservoirs in the casing (swash-plate compressors F04B27/0878, F04B27/109) · CPC title

• F04B2201/0802

  Vibration · CPC title

• F04B53/08

  Cooling; Heating; Preventing freezing · CPC title

• F04B2203/0206

  Vibration · CPC title