The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2022
Filed:
Mar. 30, 2020
Yantai Jereh Petroleum Equipment & Technologies Co., Ltd., Yantai, CN;
Maomao Han, Yantai, CN;
Weiwei Liu, Yantai, CN;
Yongcheng Liu, Yantai, CN;
Yipeng Wu, Yantai, CN;
Shuwei Li, Yantai, CN;
Shijun Song, Yantai, CN;
Lianpan Duan, Yantai, CN;
Abstract
The present invention discloses electro-hydraulic hybrid drive sand-mixing equipment, including a skid base, an electric motor, a hydraulic pump, a discharge centrifugal pump, a suction centrifugal pump, a mixing tank, a dry additive system, a liquid additive system, and a sand auger system. The electric motor, the hydraulic pump, the discharge centrifugal pump, the suction centrifugal pump, the mixing tank, the dry additive system, the liquid additive system, and the sand auger system are integrally skid mounted on the skid base. There are two electric motors, including a first electric motor and a second electric motor. The first electric motor drives the discharge centrifugal pump, and the second electric motor actuates the hydraulic pump, to drive the suction centrifugal pump, the mixing tank, the dry additive system, the liquid additive system, and the sand auger system. The electric motor is an integrated variable-frequency drive electric motor. Beneficial effects: Two integrated variable-frequency drive electric motors are applied. First, the setup of an independent variable-frequency drive cabinet is effectively omitted, that is, the overall size of the sand-mixing equipment is effectively reduced, so that it is more flexible and convenient to transport the equipment and arrange a well site. Next, a control system is simpler, thus optimizing the power matching of the sand-mixing equipment.