CN221664773U - Turbine emergency oil system and turbine system - Google Patents

Abstract

The application provides an accident oil system for a turbine and the turbine system, which comprise an accident generator and an accident oil pump, wherein the accident generator is connected with the turbine so that the turbine can drive the accident generator to operate, the accident generator is electrically connected with the accident oil pump so as to supply power to the accident oil pump when the turbine turns idle, the accident oil pump is driven to supply oil to the turbine, the idle turning of the turbine can be fully utilized, the use of an accident power supply is avoided, the energy source is saved, the production cost is saved, the use of an inverter and other matched electrical equipment is also avoided, the length of a used line is also reduced, the equipment cost is further reduced, the equipment complexity is also simplified, the space occupation is reduced, the pipe distribution difficulty is reduced, and the reliability of daily operation is improved.

Description

Turbine emergency oil system and turbine system

Technical Field

The present application belongs to the technical field of turbines, and in particular relates to an emergency oil system for a turbine and a turbine system.

Background Art

A turbine is a machine that converts the energy contained in a fluid medium into mechanical energy. It is a mechanical device that uses the kinetic energy of the fluid to drive the rotor to rotate. It is usually used in power plants, aircraft, ships and other industrial applications. For example, compressors, steam turbines, turbines, flue gas turbines, expanders, etc. are all turbines.

The turbine will not stop rotating immediately after an abnormal shutdown. Due to inertia, the rotor will continue to rotate, which is called idling. During the period from the beginning of idling to complete stop, the emergency oil pump needs to be used to force oil supply to the turbine for lubrication.

In the prior art, an emergency power supply is usually used to drive the emergency oil pump. The emergency power supply is generally an uninterruptible power supply and needs to be used together with electrical equipment such as an inverter. The electrical circuit is long and the complexity is high. Another method is to directly connect the oil pump to the turbine. The pipeline layout is complex, the reliability is low, and the startup process is cumbersome. It is not suitable for large equipment.

Utility Model Content

Therefore, the technical problem to be solved by the present application is to provide an emergency oil system and a turbine system for a turbine, which can reduce the length of electrical lines and reduce the complexity of equipment.

In order to solve the above problems, the present application provides an emergency oil system for a turbine, including an emergency generator and an emergency oil pump. The emergency generator is connected to the turbine so that the turbine can drive the emergency generator to operate. The emergency generator is electrically connected to the emergency oil pump to supply power to the emergency oil pump when the turbine is idling, so as to drive the emergency oil pump to supply oil to the turbine.

Optionally, the emergency generator is connected to the moving mechanism of the turbine through a transmission member.

Optionally, the turbine includes a main motor, and the motor shaft of the emergency generator is coaxially connected to the motor shaft of the main motor through the transmission member.

Optionally, the turbine includes a gearbox, and the motor shaft of the emergency generator is connected to the gearbox through the transmission member.

Optionally, the turbine emergency oil system includes an on-off control element, and the on-off control element is arranged on the circuit between the emergency generator and the emergency oil pump to control the on-off of the circuit.

Optionally, the turbine is connected to a working oil pump, which is used to supply oil to the turbine when the turbine is operating normally. The on-off control element is connected to the working oil pump so that the on-off control element and the working oil pump are turned on and off synchronously.

Optionally, the on-off control element is in an off state when powered on to disconnect the circuit between the emergency generator and the emergency oil pump.

Optionally, the on-off control element is in a closed state in a power-off state to connect the circuit between the emergency generator and the emergency oil pump.

Optionally, the on-off control element is a relay.

In another aspect of the present application, a turbine system is provided, including a turbine and the above-mentioned emergency oil system for the turbine.

Beneficial Effects

The utility model provides an emergency oil system and a turbine system, which can drive the emergency generator to run by setting an emergency generator and connecting the emergency generator to the turbine, and then the emergency generator can generate electricity. By setting an emergency oil pump and electrically connecting the emergency generator to the emergency oil pump, it is possible to supply power to the emergency oil pump when the turbine is idling, and then the emergency oil pump can be driven to supply oil to the turbine, which can make full use of the idling of the turbine, eliminating the use of emergency power supply, saving energy, saving production costs, and also eliminating the use of supporting electrical equipment such as inverters, and can also reduce the length of the used lines, thereby reducing equipment costs, simplifying the equipment, reducing the complexity of the equipment, saving space occupation, reducing the difficulty of pipe laying, and improving the reliability of daily operation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a system schematic diagram of a turbine system according to an embodiment of the present application.

The reference numerals are:

1. Turbine; 2. Accident generator; 3. On/off control element; 4. Accident oil pump; 5. Circuit; 6. Oil circuit.

DETAILED DESCRIPTION

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

Referring to FIG. 1 , according to an embodiment of the present application, there is provided an emergency oil system for a turbine, including an emergency generator 2 and an emergency oil pump 4. The emergency generator 2 is connected to the turbine 1 so that the turbine 1 can drive the emergency generator 2 to operate. The emergency generator 2 is electrically connected to the emergency oil pump 4 so as to supply power to the emergency oil pump 4 when the turbine 1 is idling, so as to drive the emergency oil pump 4 to supply oil to the turbine 1.

By setting up the emergency generator 2 and connecting the emergency generator 2 to the turbine 1, the turbine 1 can drive the emergency generator 2 to operate, and then the emergency generator 2 can generate electricity. By setting up the emergency oil pump 4 and electrically connecting the emergency generator 2 to the emergency oil pump 4, it is possible to supply power to the emergency oil pump 4 when the turbine 1 is idling, and then the emergency oil pump 4 can be driven to supply oil to the turbine 1, so that the idling of the turbine 1 can be fully utilized, eliminating the use of emergency power supply, saving energy, saving production costs, and also eliminating the use of supporting electrical equipment such as inverters, and can also reduce the length of the used lines, thereby reducing equipment costs, while also simplifying the equipment, reducing the complexity of the equipment, saving space occupation, reducing the difficulty of pipe laying, and improving the reliability of daily operation.

The accident generator 2 is connected to the turbine 1 so that the turbine 1 can drive the accident generator 2 to operate and generate electricity. That is, after the turbine 1 loses power due to an accident or other reasons, it will drive the motor shaft of the accident generator 2 to rotate due to its own inertia, thereby making the accident generator 2 operate and generate electricity, and supply power to the accident oil pump 4.

In this embodiment, the emergency generator 2 is driven to operate when the turbine 1 is operating normally or idling. However, when the turbine 1 is operating normally, the emergency generator 2 does not supply power to the emergency oil pump 4. Only when the turbine 1 is idling, the emergency generator 2 does not supply power to the emergency oil pump 4.

An oil circuit 6 is provided between the emergency oil pump 4 and the turbine 1 , and lubricating oil required to ensure the idling of the turbine 1 is pumped into the turbine 1 through the oil circuit 6 .

Specifically, the oil circuit 6 is formed as a pipeline.

The emergency generator 2 is connected to the moving mechanism of the turbine 1 through a transmission member, which can ensure a stable connection between the emergency generator 2 and the moving mechanism of the turbine 1 and enable the turbine 1 to drive the emergency generator 2 to operate.

Among them, the transmission member can be a connecting component such as a coupling.

The moving mechanism of the turbine 1 is a mechanism in the turbine 1 that can operate after power is turned on and can idle after power is turned off.

Specifically, the transmission member is a coupling, and the motion mechanism of the turbine 1 is the motor shaft of the main motor or the output shaft of the gearbox.

In one embodiment, the turbine 1 includes a main motor, and the motor shaft of the emergency generator 2 is coaxially connected to the motor shaft of the main motor through a transmission member, so that the turbine 1 can stably drive the motor shaft of the emergency generator 2 to rotate when idling, thereby realizing power generation by utilizing the idling of the turbine 1.

The main motor is used to drive the rotor of the turbine 1 to make it rotate at high speed, thereby driving the compressor or the fan to realize the operation of the turbine 1.

Among them, the transmission component is a coupling, and the motor shaft of the emergency generator 2 is coaxially connected with the motor shaft of the main motor through the coupling, so that the turbine 1 can stably drive the motor shaft of the emergency generator 2 to rotate when idling.

Specifically, the motor shaft of the emergency generator 2, the motor shaft of the main motor and the coupling are all coaxially arranged.

In another embodiment, the turbine 1 includes a gearbox, and the motor shaft of the emergency generator 2 is connected to the gearbox through a transmission member, so that the turbine 1 can stably drive the motor shaft of the emergency generator 2 to rotate when idling, thereby realizing power generation by idling of the turbine 1.

The gearbox is used to adjust the speed of the turbine 1 to meet the operating requirements under different working conditions, so that the turbine 1 can maintain stable operation under different loads and adjust the speed when necessary to improve efficiency.

Among them, the transmission part is a coupling, and the motor shaft of the emergency generator 2 is coaxially connected with the output shaft of the gearbox through the coupling, so that the turbine 1 can stably drive the motor shaft of the emergency generator 2 to rotate when idling.

Specifically, the motor shaft of the emergency generator 2, the output shaft of the gearbox and the coupling are all coaxially arranged.

The emergency oil system for the turbine includes an on-off control element 3 , which is arranged on a circuit 5 between the emergency generator 2 and the emergency oil pump 4 to control the on-off of the circuit 5 .

By setting the on-off control element 3, the on-off of the control circuit 5 can be realized, thereby controlling the operation or stop of the emergency oil pump 4, and pumping oil to the turbine 1 as needed.

Among them, the on-off control element 3 is a relay.

When the turbine 1 is idling, the on-off control element 3 controls the circuit 5 to be connected, and the emergency oil pump 4 is powered on, thereby pumping oil to the turbine 1 .

When the turbine 1 operates normally, the on-off control element 3 controls the circuit 5 to be disconnected, and the emergency oil pump 4 is powered off, thereby stopping the oil pumping to the turbine 1 .

The turbine 1 is connected to a working oil pump, which is used to supply oil to the turbine 1 when the turbine 1 is operating normally. The on-off control element 3 is connected to the working oil pump so that the on-off control element 3 and the working oil pump are turned on and off synchronously.

It should be noted that the working oil pump refers to an oil pump that supplies oil to the turbine 1 when the turbine 1 is operating normally, that is, when the turbine 1 is not idling, the working oil pump supplies oil to the turbine 1. The working oil pump and the emergency oil pump 4 are two different oil pumps.

The on-off control element 3 is interlocked with the working oil pump, so that when the working oil pump is powered on, the on-off control element 3 is powered on synchronously, and when the working oil pump is powered off, the on-off control element 3 is powered off synchronously.

Specifically, the on-off control element 3 is interlocked with the low-voltage circuit used by the motor of the working oil pump.

The on-off control element 3 is in an off state when powered on, so as to disconnect the circuit 5 between the emergency generator 2 and the emergency oil pump 4 .

Among them, the turbine 1 operates normally, the working oil pump is powered on, the on-off control element 3 is powered on synchronously and is in the open state, thereby disconnecting the circuit 5 between the emergency generator 2 and the emergency oil pump 4, so that the emergency oil pump 4 is not powered, and thus no oil is supplied to the turbine 1.

The on-off control element 3 is in a closed state in the power-off state to connect the circuit 5 between the emergency generator 2 and the emergency oil pump 4.

Among them, the turbine 1 is powered off and idling, the working oil pump is powered off, and the on-off control element 3 is powered off synchronously and switched to the closed state, thereby connecting the circuit 5 between the emergency generator 2 and the emergency oil pump 4, and the turbine 1 drives the emergency generator 2 to generate electricity by idling, and the electrical energy is transmitted to the emergency oil pump 4 through the circuit 5 between the emergency generator 2 and the emergency oil pump 4, so that the emergency oil pump 4 is powered on and supplies oil to the turbine 1.

In another aspect of the present embodiment, a turbine system is provided, comprising a turbine 1 and the above-mentioned emergency oil system for the turbine.

It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims (10)

1. An emergency oil system for a turbine, characterized in that it comprises an emergency generator (2) and an emergency oil pump (4), wherein the emergency generator (2) is connected to the turbine (1) so that the turbine (1) can drive the emergency generator (2) to operate, and the emergency generator (2) is electrically connected to the emergency oil pump (4) so as to supply power to the emergency oil pump (4) when the turbine (1) is idling, so as to drive the emergency oil pump (4) to supply oil to the turbine (1). 2. The emergency oil system for a turbine according to claim 1 is characterized in that the emergency generator (2) is connected to the moving mechanism of the turbine (1) through a transmission member. 3. The emergency oil system for a turbine according to claim 2 is characterized in that the turbine (1) includes a main motor, and the motor shaft of the emergency generator (2) is coaxially connected to the motor shaft of the main motor through the transmission member. 4. The emergency oil system for a turbine according to claim 2 is characterized in that the turbine (1) includes a gearbox, and the motor shaft of the emergency generator (2) is connected to the gearbox through the transmission member. 5. The turbine emergency oil system according to claim 1 is characterized in that the turbine emergency oil system includes an on-off control element (3), and the on-off control element (3) is arranged on the circuit (5) between the emergency generator (2) and the emergency oil pump (4) to control the on-off of the circuit (5). 6. The emergency oil system for a turbine according to claim 5 is characterized in that the turbine (1) is connected to a working oil pump, and the working oil pump is used to supply oil to the turbine (1) when the turbine (1) is operating normally, and the on-off control element (3) is connected to the working oil pump so that the on-off control element (3) and the working oil pump are turned on and off synchronously. 7. The turbine emergency oil system according to claim 6 is characterized in that the on-off control element (3) is in an open state when powered on to disconnect the circuit (5) between the emergency generator (2) and the emergency oil pump (4). 8. The turbine emergency oil system according to claim 6 is characterized in that the on-off control element (3) is in a closed state in a power-off state to connect the circuit (5) between the emergency generator (2) and the emergency oil pump (4). 9. The emergency oil system for a turbine according to claim 5, characterized in that the on-off control element (3) is a relay. 10. A turbine system, characterized in that it comprises a turbine (1) and the emergency oil system for the turbine according to any one of claims 1 to 9.