Compressed air recycling power generation system during intermittent operation period of converter fan

Abstract

The utility model discloses a compressed air recycling power generation system during converter fan intermittent operation, and relates to the technical field of converter fans in the smelting industry, the converter fan is used for providing compressed air for a converter during blowing operation; the second electromagnetic valve is installed on the exhaust pipeline, and the second electromagnetic valve (40) is used for controlling opening / closing of the exhaust pipeline; the silencer is connected with the second electromagnetic valve and used for reducing noise generated when the compressed air is exhausted; the first electromagnetic valve is mounted in an air supply pipeline of the converter fan and the converter and is used for opening / closing the air supply pipeline; the fan blade generator is mounted on the silencer, and the exhausted compressed air is used for driving fan blades of the fan blade generator to rotate so as to generate electric energy; according to the utility model, a large amount of compressed air discharged by the converter fan during a non-blowing operation period can be captured and converted into electric energy through the fan blade generator, so that the energy waste is reduced, and the energy cost of an enterprise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of converter fans in the smelting industry, and in particular to a power generation system for recycling compressed air during intermittent operation of a converter fan. Background Art

[0002] In the application of converter fans in the smelting industry, due to the intermittent operation of the converter fan blowing process and the large power of the converter fan motor and the precision of the fan equipment, the converter fan is a device that does not start and stop frequently. Otherwise, each start-up of the equipment will have a great impact on the power grid, the fan's matching motor, and the fan bearings driven by the motor.

[0003] During the non-blowing operation of the converter, the converter fan operates at a relatively low load (generally speaking, AC = 6000 volts, I = tens of amperes). At this time, the second solenoid valve is fully open, and a stable large-flow compressed air is discharged into the atmosphere through the second solenoid valve and the muffler, resulting in a waste of energy. Therefore, in order to improve the efficiency of energy utilization, this device proposes a compressed air recovery and power generation system during the intermittent operation of the converter fan. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes a power generation system for recycling compressed air during intermittent operation of a converter fan.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A power generation system for recycling compressed air during intermittent operation of a converter fan, comprising:

[0007] Converter fan, used to provide compressed air to the converter during blowing operation;

[0008] The air supply duct and the exhaust duct, the air supply duct is used to supply air to the converter when the converter is working, and the exhaust duct is used to discharge the wind of the converter fan when the converter stops working;

[0009] A second solenoid valve is installed on the exhaust duct, and the second solenoid valve is used to control the opening / closing of the exhaust duct;

[0010] a muffler connected to the second solenoid valve and used to reduce noise generated when the compressed air is discharged;

[0011] A first solenoid valve is installed inside the air supply duct between the converter fan and the converter, and is used to open / close the air supply duct;

[0012] The fan blade generator is installed on the muffler and uses the discharged compressed air to drive the fan blades of the fan blade generator to rotate to generate electrical energy;

[0013] An electric energy regulating device, electrically connected to the fan blade generator, for regulating and stabilizing the electric energy generated by the fan blade generator;

[0014] The electric energy storage device is electrically connected to the electric energy regulating device and is used for receiving and storing the electric energy generated by the wind blade generator.

[0015] The above technical solution further includes: the fan blade generator is a structure suitable for the compressed air flow characteristics to improve the power generation efficiency.

[0016] The electric energy regulating device includes a voltage stabilizer, a frequency regulator and an electric energy switching device. The voltage stabilizer is used to stabilize the output voltage, the frequency regulator is used to adjust the frequency of the output electric energy, and the electric energy switching device is used to intelligently select the destination of the electric energy according to the grid load and the state of the energy storage device.

[0017] It is used to automatically switch the operating state of the fan blade generator according to the blowing state of the converter to ensure that the fan blade generator does not work during the converter blowing period.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] In the utility model, a large amount of compressed air discharged by the converter fan during non-blowing operation can be captured and converted into electrical energy through the fan generator, thereby reducing energy waste and lowering the energy cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] In the figure:

[0022] 10. converter fan; 20. first solenoid valve; 30. converter; 40. second solenoid valve; 50. silencer; 60. fan generator; 70. electric energy storage device. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Embodiment 1

[0025] See attached Figure 1 The utility model proposes a power generation system for recycling compressed air during intermittent operation of a converter fan.

[0026] It includes: a converter fan 10, used to provide compressed air to the converter 30 during the blowing operation;

[0027] The device includes two pipes, one is the air supply pipe from the converter fan 10 to the converter 30, and the other is the exhaust pipe from the converter fan 10 to the muffler 50. The air supply pipe is used to supply air to the inside of the converter 30 when the converter 30 is working, and the exhaust pipe is used to discharge the wind from the converter fan 10 when the converter 30 stops working.

[0028] The second solenoid valve 40 is installed on the exhaust duct and is used to discharge the compressed air generated by the converter fan 10 during non-blowing operations; wherein, 40 can be used to control the opening / closing of the exhaust duct.

[0029] A muffler 50, connected to the second solenoid valve 40, for reducing the noise generated when the compressed air is discharged;

[0030] The first solenoid valve 20 is installed inside the air supply duct between the converter fan 10 and the converter 30; wherein, the first solenoid valve 20 is used to open / close the air supply duct, that is, when the converter 30 is working, the first solenoid valve 20 is opened, so that the converter fan 10 sends air into the converter 30; when the converter 30 stops working, the first solenoid valve 20 is closed, so that the wind force of the converter fan 10 is discharged from the second duct.

[0031] The fan blade generator 60 is installed on the muffler 50, and uses the exhausted compressed air to drive the fan blades of the fan blade generator 60 to rotate to generate electrical energy; wherein, the fan blade generator 60 can rotate under the action of compressed air, and convert mechanical energy into electrical energy through the electromagnetic induction principle inside the generator.

[0032] The fan generator 60 is a structure suitable for the air flow characteristics of compressed air to improve the power generation efficiency.

[0033] An electric energy regulating device, electrically connected to the fan blade generator 60, for regulating and stabilizing the electric energy generated by the fan blade generator;

[0034] The electric energy storage device 70 is electrically connected to the electric energy regulating device, and is used to receive and store the electric energy generated by the wind blade generator 60; wherein the electric energy storage device 70 is a power grid or an energy storage device.

[0035] The electric energy regulation device includes a voltage stabilizer, a frequency regulator and an electric energy switching device; among them, the voltage stabilizer is used to stabilize the output voltage and ensure the quality of electric energy; the frequency regulator is used to adjust the frequency of the output electric energy to match it with the power grid or energy storage equipment; the electric energy switching device intelligently selects the destination of electric energy according to the power grid load and the status of the energy storage equipment to achieve reasonable distribution and storage of electric energy.

[0036] It also includes a control system, which is used to automatically switch the operating state of the fan blade generator 60 according to the blowing state of the converter 30, to ensure that the fan blade generator 60 does not work during the blowing of the converter 30; wherein the control system realizes automatic control through a PLC or DCS system, and automatically switches the operating state of the fan blade generator 60 according to the blowing state of the converter; that is, during the blowing of the converter 30, the control system turns off the fan blade generator 60 to avoid interfering with the blowing process; during the non-blowing period of the converter 30, the control system turns on the fan blade generator 60 to put it into working state.

[0037] In this embodiment, when implementing the present invention, firstly, the fan blade generator 60 is installed on the muffler 50, and ensures that the connection between the fan blade generator 60 and the second solenoid valve 40 and the muffler 50 is tight and reliable;

[0038] Then, install the electric energy regulating device and connect the fan blade generator 60 and the electric energy storage device 70;

[0039] Finally, automatic control is achieved through PLC or DCS system to ensure that the system can automatically switch working status during converter blowing and non-blowing;

[0040] During the non-blowing operation of the converter 30, the second solenoid valve 40 is fully opened, and a stable large-flow compressed air is discharged through the second solenoid valve 40 and the muffler 50. While discharging wind power, the fan generator 60 is driven to generate electricity. The electric energy generated by the fan generator 60 is processed by the electric energy regulating device and enters the power grid or energy storage device through the electric energy switching device. During the blowing operation of the converter 30, the control system shuts down the fan generator 60 to avoid interference with the blowing process.

[0041] The device can capture a large amount of compressed air discharged by the converter fan 10 during non-blowing operations, and convert it into electrical energy through the fan generator 60, thereby reducing energy waste and lowering the energy cost of the enterprise.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power generation system for recycling compressed air during intermittent operation of a converter fan, characterized in that: include: A converter fan (10) for providing compressed air to the converter (30) during a blowing operation; an air supply duct and an air exhaust duct, wherein the air supply duct is used to supply air to the inside of the converter (30) when the converter (30) is working, and the air exhaust duct is used to exhaust the wind of the converter fan (10) when the converter (30) stops working; A second solenoid valve (40) is installed on the exhaust duct, and the second solenoid valve (40) is used to control the opening / closing of the exhaust duct; A muffler (50) connected to the second solenoid valve (40) and used to reduce the noise generated when the compressed air is discharged; A first solenoid valve (20) is installed inside the air supply duct between the converter fan (10) and the converter (30) and is used to open / close the air supply duct; A fan blade generator (60) is installed on the muffler (50) and uses the discharged compressed air to drive the fan blades of the fan blade generator (60) to rotate to generate electrical energy; An electric energy regulating device, electrically connected to the fan blade generator (60), for regulating and stabilizing the electric energy generated by the fan blade generator; The electric energy storage device (70) is electrically connected to the electric energy regulating device and is used to receive and store the electric energy generated by the wind blade generator (60).

2. A power generation system for recycling compressed air during intermittent operation of a converter blower according to claim 1, characterized in that: The fan blade generator (60) is a structure suitable for compressed air flow characteristics to improve power generation efficiency.

3. The compressed air recovery and power generation system during intermittent operation of a converter blower according to claim 2 is characterized in that: The electric energy regulating device includes a voltage stabilizer, a frequency regulator and an electric energy switching device. The voltage stabilizer is used to stabilize the output voltage, the frequency regulator is used to adjust the frequency of the output electric energy, and the electric energy switching device is used to intelligently select the destination of the electric energy according to the grid load and the state of the energy storage device.

4. The compressed air recovery and power generation system during intermittent operation of a converter blower according to claim 2 is characterized in that: It also includes a control system for automatically switching the operating state of the fan blade generator (60) according to the blowing state of the converter (30), so as to ensure that the fan blade generator (60) does not operate during the blowing period of the converter (30).

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