Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.

Shandong University

American Jereh International Corporation

Jihua Wang

Rikui Zhang

Peng Zhang

Zhuqing Mao

Jianwei Wang

Xiaolei Ji

Xincheng Li

Liang Lv

Yipeng Wu

Chunqiang Lan

Yuxuan Sun

Mingchao Mao

Pan Zhang

Jinyu Qu

Chuanbo Ren

Shouzhe Li

Jifeng Zhong

Xin Li

Libin Zhou

Jianglei Zou

Tao Kou

Xu Liu

Dekun Tian

Fuhong Li

Zhijie Liu

Nana Lv

Zhengbin Guo

Zhuowen Zhao

Jiashan Mi

Jinju Shao

Wanchun Cha

Song Gao

Embodiments of the present disclosure provide a purging system for a turbine fracturing apparatus group and a turbine fracturing apparatus group. The turbine fracturing apparatus group includes a plurality of gas turbines, each gas turbine includes a plurality of fuel supply pipelines. The purging system includes: a first air compressor and a purging pipeline, the purging pipeline communicates the first air compressor with the plurality of fuel supply pipelines of each gas turbine in the turbine fracturing apparatus group, and the first air compressor is configured to, in a case where at least part of the plurality of fuel supply pipelines is stopped from supplying fuel, supply compressed air to the at least part of the plurality of fuel supply pipelines which has been stopped from supplying fuel, so as to perform purging.

Purging system for turbine fracturing apparatus group, purging method and turbine fracturing apparatus group

A gas turbine overspeed protection method includes: a power utilization load of a generator is acquired, and a rotating speed value of a gas turbine is acquired; whether the power utilization load suddenly decreases or disappears is judged, and if so, an eddy current retarder is controlled by a controller to simulate the power utilization load to provide a braking torque for the generator; or, whether the rotating speed value exceeds a set speed range is judged, and if so, the gas turbine is controlled by the controller to reduce fuel supply, and a discharge valve of a gas compressor is opened to discharge a high-pressure gas to reduce the power output and the rotating speed of the gas turbine.

Gas turbine overspeed protection method and apparatus, electronic device and storage medium

An electrically-driven fracturing system, which includes a main power generation device, a first auxiliary power generation device, a switch device, and an electrically-driven fracturing device; the electrically-driven fracturing device includes a fracturing motor and a fracturing auxiliary device; a rated generation power of the main power generation device is greater than that of the first auxiliary power generation device, a rated output voltage of the main power generation device is greater than that of the first auxiliary power generation device, the input end of the high-voltage switch group is connected to the main power generation device, the output end of the high-voltage switch group is connected to the fracturing motor, the input end of the low-voltage switch group is connected to the first auxiliary power generation device, and the output end of the low-voltage switch group is connected to the fracturing auxiliary device.

Electrically-driven fracturing system

A turbine fracturing system and a controlling method thereof, a controlling apparatus and a storage medium are provided. The turbine fracturing system includes: N turbine fracturing apparatuses, wherein each of the N turbine fracturing apparatuses comprises a turbine engine, and N is an integer greater than or equal to 2; a fuel gas supply apparatus connected to the N turbine engines, wherein the fuel gas supply apparatus is configured to supply fuel gas and distribute the fuel gas to the N turbine engines as gaseous fuel; and a fuel liquid supply apparatus connected to at least one of the N turbine engines and configured to supply liquid fuel to at least one of the N turbine engines in a case that at least one of a flow rate and a pressure of the fuel gas decreases.

Turbine fracturing system, controlling method thereof, controlling apparatus and storage medium

Disclosed isan aira gassource system for supplyingairgasto a turbine engine by fracturing manifold equipment, includingan aira gassupply device, anairgasdelivery manifold, a filtering device, a gas detecting system and a connecting device, theairgasdelivery manifold, the filtering device and the gas detecting system are integrated on the fracturing manifold equipment, theairgassupply device is connected to theairgasdelivery manifold through the filtering device, and theairgasdelivery manifold suppliesairgasto the turbine engine through the connecting device. Beneficial effects: avoiding the hidden danger of the high pressure region, saving the floor space, avoiding the wiring of on-site delivery manifold, enhancing the connection efficiency, and reducing the difficulty of wellsite installation.

Gas source system for supplying gas to a turbine engine by fracturing manifold equipment

A system for supplying combustion gas to a turbine engine for fracturing operation by fracturing manifold equipment is disclosed. The system may include a gas supply device, a gas delivery manifold, a filtering device, a gas detecting system and a connecting device. The gas delivery manifold, and the filtering device, and the gas detecting system are integrated on the fracturing manifold equipment. The gas supply device is connected to the gas delivery manifold through the filtering device. The gas delivery manifold supplies gas to the turbine engine through the connecting device. The disclosed system help reduce operational risk, save floor space, reduce wiring/routing of on-site delivery manifold, enhance connection efficiency, and reduce the complexity of wellsite installation.

Gas source system for supplying combustion gas to a turbine engine by fracturing manifold equipment

An operation method of a turbine fracturing device and a turbine fracturing device are provided. The turbine fracturing device includes a turbine engine, a speed reducer, a brake mechanism, and a fracturing pump, the method includes: driving, by the turbine engine, the fracturing pump to perform a fracturing operation through the speed reducer so as to keep the fracturing pump in an operating state, the fracturing pump being configured to suck fluid of a first pressure and discharge fluid of a second pressure, the second pressure being greater than the first pressure; and in response to an idling instruction, the turbine engine entering an idling state and triggering a brake operation so as to keep the fracturing pump in a non-operating state.

Operation method of a turbine fracturing device and a turbine fracturing device

A six-gear automatic transmission device is provided for automobiles with a brushless control-by-wire centrifugal ball arm engagement. One brushless control-by-wire centrifugal ball arm engagement device is provided between each gear input gear and each gear driving gear; and by controlling the engagement and disengagement of the brushless control-by-wire centrifugal ball arm engagement device, the shifting control of the six-gear automatic transmission for automobile with a brushless control-by-wire centrifugal ball arm engagement device is performed. The technology provides advantages including compact structure, being capable of dynamic gear-shift, no mechanical or hydraulic gear-shift components and low operational energy consumption.

Six-gear automatic transmission for automobile with brushless control-by-wire centrifugal ball arm engagement device

The present invention discloses an air intake and exhaust system of a turbine engine, including an air intake system and an exhaust system. The air intake system is connected to an air inlet of the turbine engine, and the exhaust system is connected to an exhaust port of the turbine engine. The air intake system includes air intake filters and air intake pipings, which are connected to each other. The air intake filters are in V-shaped structures. The exhaust end of the exhaust system is provided with a rain cap. The beneficial effects are as follows: the air intake area is large, the flow rate of the air intake is relatively low, and the air filter has a long life time. The exhaust port is additionally provided with the rain cap, preventing rainwater from accumulating in an exhaust silencer and thus preventing rainwater from possibly flowing backward into and damaging the turbine engine; the opening of the rain cap faces away from the air inlet, preventing the discharged exhaust from being inhaled by the air inlet, and ensuring the quality of air inflow.

Air intake and exhaust system of turbine engine

Disclosed is an air source system for supplying air to a turbine engine by fracturing manifold equipment, including an air supply device, an air delivery manifold, a filtering device, a gas detecting system and a connecting device, the air delivery manifold, the filtering device and the gas detecting system are integrated on the fracturing manifold equipment, the air supply device is connected to the air delivery manifold through the filtering device, and the air delivery manifold supplies air to the turbine engine through the connecting device. Beneficial effects: avoiding the hidden danger of the high pressure region, saving the floor space, avoiding the wiring of on-site delivery manifold, enhancing the connection efficiency, and reducing the difficulty of wellsite installation.

Air source system for supplying air to a turbine engine by fracturing manifold equipment

The present invention discloses a three-gear automatic transmission for electric vehicle with a brushless control-by-wire centrifugal ball arm engagement device. One brushless control-by-wire centrifugal ball arm engagement device is provided between each gear input gear and each gear driving gear; and by controlling the engagement and disengagement of the brushless control-by-wire centrifugal ball arm engagement device, the shift control of the three-gear automatic transmission for electric vehicle with a brushless control-by-wire centrifugal ball arm engagement device is performed. The present invention has such advantages as compact structure, being capable of dynamic gear-shift, no mechanical or hydraulic gear-shift components and low operational energy consumption.

Three-gear automatic transmission for electric vehicle with a brushless control-by-wire centrifugal ball arm engagement device

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Yantai, China

Jihua Wang