Device utilizing highway tunnel jet fan to generate electricity and provide illumination for tunnel

Abstract

The invention provides a device utilizing a highway tunnel jet fan to generate electricity and provide illumination for a tunnel, the device comprises a direct current generator, the jet fan and a tunnel illumination system, one end of a motor shaft of the jet fan is connected with an axial connector, the other end of the axial connector is connected to the input end of the direct current generator, and the direct current generator is connected with the jet fan. An inverter is arranged on one side of the direct-current generator, a dual-power switch cabinet is arranged on one side of the inverter, and the dual-power switch cabinet is electrically connected with a tunnel lighting power distribution cabinet. According to the tunnel lighting system, power is generated through the direct-current generator by means of kinetic energy generated by the jet fan under the action of natural wind and piston wind, and the inverter is used for conducting frequency conversion and boosting on the power generated by the direct-current generator, so that alternating current obtained after frequency conversion and boosting is used for providing electric energy needed by lighting for the tunnel lighting system; the tunnel lighting power can be self-sufficiency, the operation cost of the tunnel is greatly reduced, and local power grid power supply can only serve as a standby power supply for tunnel lighting.

Description

Technical Field

[0001] The present invention relates to a highway tunnel lighting device, in particular to a device which utilizes a highway tunnel jet fan to generate electricity and provide lighting for the tunnel itself, and belongs to the technical field of wind power generation and lighting. Background Art

[0002] Jet fans are the core equipment of highway tunnel ventilation systems, primarily used to maintain air circulation and remove vehicle exhaust and fire smoke. Propelling air longitudinally, they create a "piston effect" that rapidly expel pollutants from the tunnel, ensuring that CO and smoke concentrations meet safety standards. In the event of a fire, they can control smoke flow in a directional manner, providing a clear path for escape and rescue. Their ductless design saves space, and coupled with an intelligent control system, they dynamically adjust air volume, balancing energy efficiency with emergency response needs, making them crucial for safe tunnel operations.

[0003] In recent years, the operating costs of highways have remained high, and electricity consumption for tunnel lighting accounts for a large part of this cost. Currently, tunnel lighting mainly uses power from the local power grid, with a small number of uses of solar photovoltaics as a supplementary lighting power source. However, since solar photovoltaics can only generate electricity during the day and not at night, they have significant limitations and can only be used as an auxiliary power source rather than as a substitute power source. Therefore, a device that uses a jet fan in a highway tunnel to generate electricity and provide tunnel lighting is proposed. Summary of the Invention

[0004] In view of this, the present invention provides a device that utilizes a jet fan in a highway tunnel to generate electricity and provide lighting for the tunnel itself, so as to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0005] The technical solution of an embodiment of the present invention is implemented as follows: a device for generating electricity and lighting the tunnel using a jet fan in a highway tunnel, comprising a DC generator, a jet fan, and a tunnel lighting system. One end of the motor shaft of the jet fan is connected to an axial connector, the other end of the axial connector is connected to the input end of the DC generator, an inverter is provided on one side of the DC generator, and a dual-power switchgear is provided on one side of the inverter. The dual-power switchgear is electrically connected to a tunnel lighting distribution cabinet, and the tunnel lighting distribution cabinet is electrically connected to the tunnel lighting system.

[0006] Wherein, the jet fan drives the DC generator to generate electricity using an axial connector under the action of natural wind and piston wind;

[0007] The inverter is used to convert the electricity generated by the DC generator and boost it into 380V AC power. The boosted AC power is then supplied to the tunnel lighting system through the dual power switch cabinet and the tunnel lighting distribution cabinet.

[0008] Further preferably, a motor mounting bracket is installed at the rear of the jet fan, and the DC generator is installed on the upper surface of the motor mounting bracket.

[0009] Further preferably, a DC power connection line is connected between the DC generator and the inverter, an AC power connection line is connected between the inverter and the dual-power switch cabinet, and the dual-power switch cabinet is also connected to a mains connection line.

[0010] Further preferably, a motor voltage regulator is installed on one side of the DC generator, and the DC power supply connection line is electrically connected to the DC generator through the motor voltage regulator.

[0011] Further preferably, the motor terminal of the jet fan is connected to an AC contactor, and the normally closed contact of the AC contactor is electrically connected to the motor voltage regulator.

[0012] Further preferably, a storage battery is provided between the DC generator and the inverter, and the storage battery is electrically connected to the DC generator and the motor voltage regulator respectively.

[0013] The embodiment of the present invention adopts the above technical solution, which has the following advantages:

[0014] First, the present invention utilizes the kinetic energy generated by natural wind and piston wind from a jet fan through a DC generator to generate electricity. An inverter is used to convert the frequency and boost the voltage of the electricity generated by the DC generator. This converted and boosted AC power then provides the electricity required for the tunnel lighting system. This makes the tunnel lighting electricity self-sufficient, significantly reducing tunnel operating costs. The local power grid can then serve only as a backup power source for the tunnel lighting.

[0015] 2. The overall structure of the present invention is simple, safe and reliable, and does not cause pollution to the surrounding environment during operation. It has the characteristics of long service life, low risk of failure, energy saving and environmental protection.

[0016] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 It is a structural block diagram of the present invention.

[0019] Figure numerals: 1. DC generator; 2. Axial connector; 3. Motor mounting bracket; 4. DC power connection cable; 5. Inverter; 6. AC power connection cable; 7. Dual power switchgear; 8. Tunnel lighting distribution cabinet; 9. Mains power connection cable; 10. Battery; 11. Motor voltage regulator; 12. Tunnel lighting system. DETAILED DESCRIPTION

[0020] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0021] It should be noted that the terms "first," "second," "symmetrical," and "array" are used solely for descriptive and positional purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Therefore, limitations on features such as "first" and "symmetrical" may explicitly or implicitly include one or more of these features. Similarly, when features are not limited in quantity using words such as "two" or "three," it should be noted that these features also explicitly or implicitly include one or more of these features.

[0022] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, an embodiment of the present invention provides a device for generating electricity and lighting the tunnel using a jet fan in a highway tunnel. The device includes a DC generator 1, a jet fan, and a tunnel lighting system 12. One end of the motor shaft of the jet fan is connected to an axial connector 2, and the other end of the axial connector 2 is connected to the input end of the DC generator 1. An inverter 5 is provided on one side of the DC generator 1, and a dual-power switch cabinet 7 is provided on one side of the inverter 5. The dual-power switch cabinet 7 is electrically connected to a tunnel lighting distribution cabinet 8, and the tunnel lighting distribution cabinet 8 is electrically connected to the tunnel lighting system 12.

[0024] Among them, the jet fan uses the axial connector 2 to drive the DC generator 1 to generate electricity under the action of natural wind and piston wind;

[0025] The inverter 5 is used to convert the power generated by the DC generator 1 and boost it into 380V AC power. The boosted AC power is then supplied to the tunnel lighting system 12 through the dual power switch cabinet 7 and the tunnel lighting distribution cabinet 8.

[0026] In one embodiment, a motor mounting bracket 3 is installed at the rear of the jet fan, and the DC generator 1 is installed on the upper surface of the motor mounting bracket 3;

[0027] The jet fan and the DC generator 1 are installed by using a motor mounting bracket 3 .

[0028] In one embodiment, a DC power connection line 4 is connected between the DC generator 1 and the inverter 5, an AC power connection line 6 is connected between the inverter 5 and the dual power switch cabinet 7, and the dual power switch cabinet 7 is also connected to a mains connection line 9;

[0029] A motor voltage regulator 11 is installed on one side of the DC generator 1, and the DC power supply connection line 4 is electrically connected to the DC generator 1 through the motor voltage regulator 11;

[0030] The motor terminal of the jet fan is connected to an AC contactor, and the normally closed contact of the AC contactor is electrically connected to the motor voltage regulator 11.

[0031] When the AC contactor coil connected to the jet fan motor terminal is energized, the AC contactor is closed, the power line of the motor voltage regulator 11 connected to the normally closed contact of the contactor is disconnected, and the DC generator 1 stops generating electricity; the mains connection line 9 is used to switch to the mains through the dual power switch cabinet 7, so that the mains power can be used as a backup power source for the tunnel lighting, supplying power to the tunnel lighting distribution cabinet 8 and the tunnel lighting system 12.

[0032] In one embodiment, a battery 10 is provided between the DC generator 1 and the inverter 5 , and the battery 10 is electrically connected to the DC generator 1 and the motor voltage regulator 11 respectively;

[0033] The DC power generated by the DC generator 1 is stored by the battery 10 so that when the DC generator 1 is started, the motor voltage regulator 11 is used to provide excitation current for the DC generator 1 through the battery 10 .

[0034] When the present invention is working: first, it determines whether the installation conditions of the lighting device are met based on the natural wind and piston wind formed by the wind pressure difference at both ends of the tunnel inlet and outlet. When the natural wind and piston wind meet the requirements, the lighting device can be installed according to actual needs; when the combined total power of the DC generator 1 does not meet the power required for the overall lighting of the tunnel lighting system 12 of the tunnel, DC generators 1 with the same appearance as jet fans can be added in the tunnel as needed. The specific number of installations shall be based on whether the total power of the tunnel lighting can be met.

[0035] When the whole lighting device is installed and the tunnel wind speed meets the power generation condition of the direct current generator 1, the motor shaft of the jet fan drives the direct current generator 1 to rotate through the axial connector 2, so as to drive the direct current generator 1 to start power generation. The generated direct current enters the inverter 5 through the direct current power supply connecting line 4, and then the direct current is converted and boosted into 380-volt alternating current through the inverter 5. Then the alternating current is supplied to the double power supply switch cabinet 7 through the alternating current power supply connecting line 6, and then the tunnel lighting power distribution cabinet 8 is used to provide power for the tunnel lighting system 12 through the double power supply switch cabinet 7, so as to illuminate the tunnel by using the tunnel lighting system 12.

[0036] When the tunnel wind speed increases or decreases due to environmental changes, the speed of the direct current generator 1 increases or decreases along with the motor shaft of the jet fan, and the motor voltage regulator 11 increases or decreases the voltage regulating current accordingly, so that the direct current generator 1 can always maintain a stable output voltage.

[0037] When the jet fan is started due to work needs, the alternating current contactor coil connected to the jet fan motor terminal is powered, the alternating current contactor is attracted, the motor voltage regulator 11 power supply line connected to the contactor normally closed contact is disconnected, and the direct current generator 1 stops power generation and only mechanically rotates with the jet fan.

[0038] When the jet fan is started, the remaining direct current generator 1 cannot meet the tunnel lighting or cannot supply the required power for the tunnel lighting due to the failure of the direct current generator 1, the double power supply switch cabinet 7 switches to the mains through the mains connecting line 9, so as to use the mains as a backup power supply for the tunnel lighting, and supply power for the tunnel lighting power distribution cabinet 8 and the tunnel lighting system 12.

[0039] The storage battery 10 is used to store the direct current generated by the direct current generator 1, so as to provide excitation current for the direct current generator 1 through the motor voltage regulator 11 when the direct current generator 1 is started.

[0040] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A device for generating electricity and lighting the tunnel using a jet fan in a highway tunnel, comprising a DC generator (1), a jet fan and a tunnel lighting system (12), characterized in that: One end of the motor shaft of the jet fan is connected to an axial connector (2), the other end of the axial connector (2) is connected to the input end of the DC generator (1), an inverter (5) is provided on one side of the DC generator (1), a dual power switch cabinet (7) is provided on one side of the inverter (5), the dual power switch cabinet (7) is electrically connected to a tunnel lighting distribution cabinet (8), and the tunnel lighting distribution cabinet (8) is electrically connected to the tunnel lighting system (12); Wherein, the jet fan drives the DC generator (1) to generate electricity by using the axial connector (2) under the action of natural wind and piston wind; The inverter (5) is used to convert the power generated by the DC generator (1) and boost it into 380V AC power. The boosted AC power is then supplied to the tunnel lighting system (12) through the dual power switch cabinet (7) and the tunnel lighting distribution cabinet (8).

2. The device for generating electricity and lighting the tunnel using a jet fan in a highway tunnel according to claim 1, characterized in that: A motor mounting bracket (3) is installed at the rear of the jet fan, and the DC generator (1) is installed on the upper surface of the motor mounting bracket (3).

3. The device for generating electricity and lighting the tunnel using a jet fan in a highway tunnel according to claim 1, characterized in that: A DC power connection line (4) is connected between the DC generator (1) and the inverter (5), an AC power connection line (6) is connected between the inverter (5) and the dual power switch cabinet (7), and the dual power switch cabinet (7) is also connected to a mains power connection line (9).

4. The device for generating electricity and lighting the tunnel using a jet fan in a highway tunnel according to claim 3 is characterized in that: A motor voltage regulator (11) is installed on one side of the DC generator (1), and the DC power supply connection line (4) is electrically connected to the DC generator (1) through the motor voltage regulator (11).

5. The device for generating electricity and lighting the tunnel using a jet fan in a highway tunnel according to claim 4 is characterized in that: The motor terminal of the jet fan is connected to an AC contactor, and the normally closed contact of the AC contactor is electrically connected to the motor voltage regulator (11).

6. The device for generating electricity and lighting the tunnel using a jet fan in a highway tunnel according to claim 1, characterized in that: A storage battery (10) is provided between the DC generator (1) and the inverter (5), and the storage battery (10) is electrically connected to the DC generator (1) and the motor voltage regulator (11), respectively.

Images