WO2021031122A1

WO2021031122A1 - Mobile electric power system

Info

Publication number: WO2021031122A1
Application number: PCT/CN2019/101627
Authority: WO
Inventors: 冯宁; 崔启利; 张亭; 周立宾; 查万春; 吴琼; 寇涛; 李鑫; 张涛; 王丽丽; 崔树桢
Original assignee: 烟台杰瑞石油装备技术有限公司
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2021-02-25

Abstract

A mobile electric power system is divided between two transport vehicles, thereby realizing efficient integration, and reducing required transport vehicles and costs. When the mobile electric power system is in use, the two transport vehicles can be quickly and conveniently connected at sides thereof, thereby greatly reducing time required for installation. Since a gas turbine activation device (201) is provided at a gas discharge auxiliary transport unit (200), the mobile electric power system can activate a gas turbine (103) in the event of power outage.

Description

A mobile power system

Technical field

The invention relates to the field of power generation technology, in particular to a mobile power system.

Background technique

The oil and gas industry often uses hydraulic fracturing to promote the production of hydrocarbon wells, such as oil or gas wells. Traditional fracturing equipment usually has problems such as large floor area and serious environmental pollution, and it is difficult to meet the current severe environmental requirements and floor area requirements for wellsite operations.

The electric drive fracturing complete set of equipment will effectively reduce the emission of environmental pollutants, greatly reduce the floor space, reduce noise, and reduce operating and maintenance costs. The use of complete sets of electric drive fracturing equipment and the continuous increase in power of electric drive fracturing equipment put forward higher and higher requirements for the power supply at the job site. Usually, the wellsite cannot realize the power supply of fracturing equipment through the grid. Moreover, the fracturing operation has the characteristics of short operation cycle, and the fracturing equipment needs to be moved between different well sites. Under normal circumstances, the components of the power supply system have different assembly methods, different vehicle configurations, and different installation methods. The installation time required is as long as one month and as short as half a month.

How to provide short installation time, convenient installation, and portable power supply for the electric drive fracturing operation site has become a major challenge facing today's electric drive fracturing operation.

Summary of the invention

The purpose of the present invention overcomes the shortcomings of the prior art and provides a mobile power system. By spreading all parts of the mobile power system onto two means of transportation, effective integration is realized, and means of transportation and transportation costs are reduced; through two means of transportation The side connection of the mobile power system realizes quick and convenient connection under working conditions, which greatly saves the time required for installation; by setting the gas turbine starting device on the exhaust auxiliary transportation unit, the mobile power system can realize the start of the gas turbine under all power outages.

The object of the present invention is achieved through the following technical measures: a mobile power system comprising a turbine power generation transportation unit and an exhaust auxiliary transportation unit, the exhaust auxiliary transportation unit is connected to at least one side of the turbine power generation transportation unit, the The turbine power generation transportation unit includes an air intake system, a gas turbine, a generator, and the first means of transportation. The gas turbine converts hydrocarbon fuel into mechanical energy on the output shaft. The air intake system is placed on the intake side of the gas turbine to provide combustion air for the conversion process. The generator is placed at the output end of the gas turbine to convert mechanical energy into required electrical energy; the exhaust auxiliary transportation unit includes an exhaust system, a cabin ventilation cooling system and a second transportation means, the exhaust system and the cabin ventilation cooling The system is arranged on the second vehicle, the exhaust system is connected to the exhaust port of the gas turbine, and the cabin ventilation cooling system is connected to the gas turbine cabin.

Further, the exhaust gas auxiliary transportation unit includes a gas turbine starting device, the gas turbine starting device is used to help realize the gas turbine starting when the mobile power system is in a state of full power outage, and the gas turbine starting device has a self-starting capability The generator set or battery pack.

Further, the turbine power generation and transportation unit further includes a power control unit. The power control unit includes a power unit and a control unit. The power unit is used to output electricity from the generator. The control unit includes a gas turbine control unit and a power generation unit. The engine control unit, the gas turbine control unit acts on the gas turbine, and the generator control unit acts on the generator.

Further, the exhaust system includes an exhaust joint, an exhaust silencer, and an exhaust chimney. The exhaust joint, the exhaust silencer and the exhaust chimney are connected in sequence, and the exhaust silencer and the exhaust chimney are arranged as As a whole, the other end of the exhaust joint is connected with the exhaust port of the gas turbine. In the transportation state, the exhaust muffler and the exhaust chimney are placed horizontally, and in the working state, the exhaust muffler and the exhaust chimney are placed horizontally. Place it upright.

Further, in the working state, the exhaust joint is moved to the side of the second transportation tool through the bottom slide rail.

Further, for the exhaust muffler device and the exhaust chimney, in the working state, the exhaust muffler device and the exhaust chimney can be placed horizontally to a vertical position through a lifting mechanism.

Further, the exhaust system is connected to the side of the turbine power generation transportation unit.

Further, the cabin ventilation cooling system is connected to the side of the turbine power generation transportation unit.

Further, the exhaust auxiliary transportation unit is also provided with a set of hydraulic walking device, which is used for fine adjustment of the second transportation tool in the up, down, left and right directions in the working state, so as to quickly complete the docking with the turbine power generation transportation unit.

Compared with the prior art, the present invention has the following beneficial effects: 1. By spreading all parts of the mobile power system on two transportation means, effective integration is realized, and transportation means and transportation costs are reduced. 2. Through the side connection of the two transportation tools, quick and convenient connection under working conditions is realized, which greatly saves the time required for installation. 3. The gas turbine starting device is installed on the exhaust auxiliary transportation unit, so that the mobile power system can start the gas turbine under all power outages.

The present invention will be described in detail below in conjunction with the drawings and specific embodiments.

Description of the drawings

Figure 1 is a schematic diagram of the structure of a mobile power system.

Figure 2 is a cross-sectional view of a turbine power generation transport unit.

Fig. 3 is a schematic structural diagram of the exhaust auxiliary transport unit in a transport state.

Figure 4 is a schematic structural diagram of the exhaust auxiliary transport unit in working state.

Among them, 100. Turbine power generation transportation unit, 200. Exhaust auxiliary transportation unit, 101. Air intake system, 102. Air inlet connector, 103. Gas turbine, 104. Generator, 105. Power control unit, 106. First transportation Tools, 201. Gas turbine starting device, 202. Cabin ventilation and cooling system, 203. Exhaust system, 204. Second transportation means, 205. Exhaust joint, 206. Ventilation flexible connecting pipe.

detailed description

An embodiment, as shown in FIGS. 1 to 4, a mobile power system includes a turbine power generation transportation unit 100 and an exhaust gas auxiliary transportation unit 200, the exhaust gas auxiliary transportation unit 200 is connected to at least one side of the turbine power generation transportation unit 100 The turbine power generation transportation unit 100 includes an air intake system 101, a gas turbine 103, a generator 104, and a first vehicle 106. The gas turbine 103 converts hydrocarbon fuel into mechanical energy of the output shaft, and the air intake system 101 is placed in the gas turbine 103 On the intake side, it is connected to the intake port of the gas turbine 103 through the intake joint 102 to provide combustion-supporting air for the conversion process. The intake system 101 is integrated into the intake port of the gas turbine 103. Necessary elbow, low intake pressure loss, stable flow direction.

The generator 104 is placed on the output shaft side of the gas turbine 103, and is connected by an intermediate shaft to convert mechanical energy into required electrical energy. The exhaust auxiliary transportation unit 200 includes an exhaust system 203, a cabin ventilation cooling system 202, and a gas turbine starter 201 and the second transportation means 204, the exhaust system 203, the cabin ventilation cooling system 202 and the gas turbine starting device 201 are arranged on the second transportation means 204, the exhaust system 203 and the exhaust port of the gas turbine 103 Connected, the cabin ventilation cooling system 202 is connected to the cabin of the gas turbine 103 through a flexible ventilation pipe, and provides clean air for cooling the cabin of the turbine power generation transportation unit 100. The gas turbine starting device 201 is used to start the gas turbine 103 without relying on the help of other power networks when the mobile power system is completely out of power. The gas turbine starting device 201 includes a fuel engine and a starting generator, and provides power for starting the gas turbine 103. The turbine power generation transportation unit 100 integrates the air intake system 101, the gas turbine 103 and the generator 104, which eliminates the need to connect the air intake system 101 on site, simplifies the power output shaft alignment, and greatly reduces the accuracy and difficulty of on-site assembly. Shorten assembly time.

The turbine power generation transportation unit 100 also includes a lubricating oil system (providing lubrication for the gas turbine 103 and the generator 104), a fire fighting system (cabin fire extinguishing), a gas supply system (providing fuel for the gas turbine) and other auxiliary systems not marked in the figure.

The turbine power generation and transportation unit 100 also includes a power control unit 105. The power control unit 105 includes a power unit and a control unit. The power unit is used to output electricity from the generator 104 to the outside. The control unit includes a gas turbine control unit and a control unit. The generator control unit, the gas turbine control unit acts on the gas turbine 103 and gas turbine auxiliary equipment (for example, lubricating oil pump, etc.), and the generator control unit acts on the generator 104. The power control unit 105 is integrated on the turbine power generation transportation unit 100, which reduces the workload of on-site cable connection and prolongs the service life of electrical components.

The exhaust system 203 includes an exhaust connector 205, an exhaust silencer and an exhaust chimney. The exhaust connector 205, an exhaust silencer and an exhaust chimney are connected in sequence, and the exhaust silencer and the exhaust chimney are arranged as The exhaust joint 205 is connected to the exhaust port of the gas turbine 103 at the other end of the exhaust joint 205. In the transportation state, the exhaust muffler and the exhaust chimney are Placed horizontally, in working condition, the exhaust muffler and exhaust chimney are placed vertically.

In the working state, the exhaust joint 205 moves to the side of the second transportation tool 204 through the bottom slide rail.

In the working state, the exhaust muffler device and the exhaust chimney realize the horizontal conversion to the vertical position through the lifting mechanism, and the lifting mechanism may be a hydraulic cylinder or the like. The exhaust gas of the gas turbine 103 is discharged into the atmosphere through the exhaust port, the exhaust joint 205, the exhaust muffler and the exhaust chimney in sequence.

The exhaust system 203 is connected to the side of the turbine power generation transportation unit 100. The cabin ventilation cooling system 202 is connected to the side of the turbine power generation transportation unit 100. The cabin ventilation cooling system 202 and the exhaust system 203 are connected to the side of the turbine power generation transportation unit 100 to avoid hoisting, reduce the difficulty of operation, and improve the convenience of operation.

The exhaust auxiliary transportation unit 200 is also provided with a set of hydraulic walking device, which is used for fine adjustment of the second transportation tool 204 in the up, down, left and right directions in the working state, so as to complete the docking with the turbine power generation transportation unit 100 more quickly. The hydraulic walking device includes a vertical outrigger, a horizontal telescopic mechanism, and a horizontal hydraulic cylinder. The vertical outrigger includes a vertical hydraulic cylinder and a mechanical structure that can withstand the horizontal force of the vertical hydraulic cylinder. Through the expansion and contraction of the vertical hydraulic cylinder, the first Second, fine adjustment of the height of the vehicle 204 (for example, the exhaust joint 205 needs to be raised or lowered). Under the coordinated action of the horizontal telescopic mechanism and the horizontal hydraulic cylinders, when the horizontal hydraulic cylinders on both sides telescope to one side at the same time, the second transportation tool 204 is close to or away from the first transportation tool 106, (that is, the exhaust joint 205 is close to or far away exhaust vent).

The first transportation tool 106 and the second transportation tool 204 are at least one of a trailer, a truck, a skid or a barge.

The system is transported by two transportation vehicles. After reaching the destination, the turbine power generation transportation unit 100 is parked according to the layout of the well plant, and the exhaust auxiliary transportation unit 200 is transported to the side of the turbine power generation transportation unit 100 according to the location of the turbine power generation transportation unit 100. The exhaust auxiliary transport unit 200 adjusts the head and tail position of the second transport tool 204, and then fine-tunes the up, down, left, and right positions of the second transport tool 204 through the hydraulic walking device. After being adjusted to a suitable position, the exhaust joint 205 is set through the The slide rail moves to the outside of the exhaust auxiliary transportation unit 200 in the direction close to the turbine power generation transportation unit 100, butts with the exhaust port of the gas turbine 103, and is sealed and connected by a flexible fireproof material. At the same time, the exhaust silencer and exhaust The gas chimney is rotated from the horizontal position to the vertical position by the lifting action of the hydraulic oil cylinder provided at the bottom, and is connected to the exhaust joint 205 in a sealed manner. The telescopic flexible ventilation connecting pipe 206 in the cabin ventilation cooling system 202 extends toward the turbine power generation and transportation unit 100, and is sealed to the cabin vent of the gas turbine 103, thereby completing the installation and connection of the mobile power system. The mobile power system enters the working state.

Those skilled in the industry should understand that the present invention is not limited by the foregoing embodiments. The foregoing embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and improvements, these changes and improvements all fall within the scope of the claimed invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

A mobile power system, characterized in that it includes a turbine power generation transportation unit and an exhaust auxiliary transportation unit, the exhaust auxiliary transportation unit is connected to at least one side of the turbine power generation transportation unit, and the turbine power generation transportation unit includes an air intake system , Gas turbines, generators, and the first means of transportation. The gas turbine converts hydrocarbon fuels into mechanical energy on the output shaft. The air intake system is placed on the intake side of the gas turbine to provide combustion air for the conversion process. The generator is placed at the output of the gas turbine. , Convert mechanical energy into required electrical energy; the exhaust auxiliary transportation unit includes an exhaust system, a cabin ventilation cooling system and a second transportation means, the exhaust system and the cabin ventilation cooling system are arranged on the second transportation means The exhaust system is connected to the exhaust port of the gas turbine, and the cabin ventilation cooling system is connected to the gas turbine cabin.
The mobile power system according to claim 1, wherein the exhaust gas auxiliary transportation unit includes a gas turbine starting device, and the gas turbine starting device is used to help the mobile power system to start the gas turbine when all power is cut off. The gas turbine starting device is a generator set or a battery pack with self-starting capability.
The mobile power system of claim 1, wherein the turbine power generation and transportation unit further includes a power control unit, the power control unit includes a power unit and a control unit, and the power unit is used to output electricity from the generator to the outside. The control unit includes a gas turbine control unit and a generator control unit, the gas turbine control unit acts on the gas turbine, and the generator control unit acts on the generator.
The mobile power system according to claim 1, wherein the exhaust system includes an exhaust joint, an exhaust muffler device and an exhaust chimney, and the exhaust joint, the exhaust muffler device and the exhaust chimney are connected in sequence , The exhaust muffler device and the exhaust chimney are arranged as a whole, the other end of the exhaust joint is connected with the exhaust port of the gas turbine. In the transportation state, the exhaust muffler device and the exhaust chimney are placed horizontally. Under working conditions, the exhaust muffler and exhaust chimney are placed upright.
The mobile power system according to claim 4, wherein in the working state, the exhaust joint is moved to the side of the second vehicle through the bottom slide rail.
The mobile power system according to claim 4, characterized in that: the exhaust muffler device and the exhaust chimney, in the working state, the exhaust muffler device and the exhaust chimney can be converted from horizontal to vertical through a lifting mechanism put.
The mobile power system according to claim 1, wherein the exhaust system is connected to the side of the turbine power generation transportation unit.
The mobile power system according to claim 1, wherein the cabin ventilation cooling system is connected to the side of the turbine power generation transportation unit.
The mobile power system according to claim 1, characterized in that: the exhaust auxiliary transport unit is also provided with a set of hydraulic walking device, which is used for fine adjustment of the second transport tool in the up, down, left, and right directions in the working state to facilitate Faster completion of docking with turbine power generation transportation unit.