Temporary power station for tunnel construction

Abstract

The utility model discloses a tunnel construction is with the temporary power station in the diesel generator power supply technical field, including the power cabin, be provided with a plurality of side -by -side place's diesel generator in the power cabin, and the diesel generator is supportingly provided with the centralized oil supply pipeline, and the output cable of diesel generator is linked with the booster cabin. Place the diesel generator independently in a cabin, and its output cable is sent into the booster cabin, and the voltage of the diesel generator output is boosted by the booster cabin and is powered to the large -scale equipment outward, and adopts the centralized oil supply pipeline and carries out the oil supply, and the convenient oil circuit's delivery, and divide the area according to the function, make each equipment arrangement reasonable, and the management and maintenance are more convenient and safe.

Description

Technical Field

[0001] This utility model relates to a temporary power station for tunnel construction in the field of diesel generator power supply technology. Background Technology

[0002] The construction process of road tunnels mainly involves tunnel planning, surveying, design, breakthrough control surveying, and construction. Tunneling through mountains or hills to shorten distances and avoid steep gradients is called a mountain tunnel. Generally, mountain tunnel construction sites are often far from urban areas, especially in places where mains power cannot reach them temporarily, requiring the use of diesel generators for temporary power supply. The large equipment used in tunnel construction is high-voltage, high-current equipment, typically requiring multiple diesel generators and transformers to form a temporary power station to meet the equipment's power needs. However, in current technology, the layout of power stations is rather scattered and disorganized, which is not conducive to management and maintenance. Utility Model Content

[0003] The purpose of this invention is to provide a temporary power station for tunnel construction, with reasonable equipment arrangement, making management and maintenance more convenient and safe.

[0004] To achieve the above objectives, this utility model provides a temporary power station for tunnel construction, including a power generation compartment, which houses several diesel generators arranged side by side. The diesel generators are equipped with a centralized fuel supply pipeline, and the output cables of the diesel generators are connected to a booster compartment.

[0005] Compared with the prior art, the beneficial effects of this utility model are that the diesel generator is placed independently in a compartment, and its output cable is sent into the booster chamber. The booster chamber boosts the voltage output by the diesel generator and then supplies power to large equipment. In addition, a centralized oil supply pipeline is used for oil supply, which facilitates the delivery of oil. Furthermore, the functional division of areas makes the arrangement of various equipment more reasonable, and management and maintenance are more convenient and safer.

[0006] As a further improvement of this utility model, a low-pressure concrete platform is poured inside the power generation compartment, and the diesel generator is installed on the low-pressure concrete platform. A low-pressure cable trench is provided at the front end of the low-pressure concrete platform, and the low-pressure cable trench extends into the booster compartment.

[0007] Placing the diesel generator on a concrete platform in this way makes the installation more stable and the operation more stable. It also creates a height difference between the generator and the low-voltage cable trench, making it easier to run the generator's output cable through the trench.

[0008] As a further improvement of this utility model, the centralized oil supply pipeline includes an oil inlet main pipe, which is installed on a low-pressure concrete platform and located at the rear end of the diesel generator. A flow meter is installed at the oil inlet of the oil inlet main pipe, and several ball valves are installed in sections on the oil inlet main pipe. Each ball valve is connected to an oil inlet branch pipe, and each oil inlet branch pipe is connected to a diesel generator.

[0009] In this way, one end of the main oil inlet pipe is connected to an external oil tank, and the other end is sealed. Multiple ball valves are installed on the pipe to connect to the oil inlet branch pipes. Each oil inlet branch pipe corresponds to a diesel generator. This eliminates the need to equip each diesel generator with a separate oil tank, making the pipeline simpler, clearer, and easier to maintain.

[0010] As a further improvement of this utility model, the booster chamber is provided with a low-pressure chamber, a transformer chamber and a high-pressure chamber. The transformer chamber is located between the low-pressure chamber and the high-pressure chamber. A low-pressure cabinet is provided in the low-pressure chamber. The output cable of the diesel generator enters the booster chamber through the low-pressure cable trench and is connected to the low-pressure cabinet.

[0011] This divides the pressurization chamber into three compartments according to function. The low-pressure cabinet in the low-pressure compartment is used to connect to the output cables of the diesel generators, thereby integrating the output cables of all diesel generators together for easy external output.

[0012] As a further improvement of this utility model, a transformer is installed in the transformer room, the output end of the low-voltage cabinet is connected to the primary side of the transformer, the secondary side of the transformer is connected to the PT cabinet in the high-voltage room, and a high-voltage cabinet is also installed in the high-voltage room, with the output end of the PT cabinet connected to the high-voltage cabinet.

[0013] In this way, the transformer boosts the output voltage of the diesel generator, and then the PT cabinet provides protection and measurement voltages before the high-voltage cabinet outputs high-voltage electricity.

[0014] As a further improvement of this utility model, a high-pressure concrete platform is poured in the high-pressure chamber, and the PT cabinet and high-pressure cabinet are placed on the high-pressure concrete platform. A high-pressure cable trench is also excavated underground in the high-pressure chamber, and the high-pressure cable trench extends outward to the booster chamber. The high-pressure cable trench is connected to the high-pressure concrete platform.

[0015] In this way, the output cables of the high-voltage switchgear can be routed from the underground high-voltage cable trench to the outside, making it less susceptible to the influence of the external environment and ensuring safer operation. Attached Figure Description

[0016] Figure 1 This is a plan view of the present utility model.

[0017] Figure 2 This is a schematic diagram of the installation structure of the diesel generator of this utility model.

[0018] Figure 3This is a schematic diagram of the high-voltage switchgear of this utility model.

[0019] Among them, 1 is a high-voltage cable trench, 2 is a PT cabinet, 3 is a high-voltage cabinet, 4 is a high-voltage room, 5 is a transformer, 6 is a transformer room, 7 is a booster compartment, 8 is a low-voltage cabinet, 9 is a low-voltage room, 10 is a low-voltage cable trench, 11 is a diesel generator, 12 is a generator compartment, 13 is an oil inlet main pipe, 14 is a ball valve, 15 is a low-pressure concrete platform, 16 is the ground, and 17 is a high-pressure concrete platform. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings: like Figure 1-3 The temporary power station for tunnel construction shown includes a power generation compartment 12, which contains several diesel generators 11 arranged side by side. The diesel generators 11 are equipped with a centralized fuel supply pipeline, and the output cables of the diesel generators 11 are connected to the booster compartment 7.

[0021] The generator compartment 12 is filled with a low-pressure concrete platform, and the diesel generator 11 is installed on the low-pressure concrete platform. A low-pressure cable trench 10 is provided at the front end of the low-pressure concrete platform, and the low-pressure cable trench 10 extends into the booster compartment 7.

[0022] The centralized oil supply pipeline includes an oil inlet main pipe 13, which is installed on a low-pressure concrete platform and located at the rear end of the diesel generator 11. A flow meter is installed at the oil inlet of the oil inlet main pipe 13. Several ball valves 14 are installed in sections on the oil inlet main pipe 13. Each ball valve 14 is connected to an oil inlet branch pipe, and each oil inlet branch pipe is connected to a diesel generator 11.

[0023] The booster chamber 7 is equipped with a low-pressure chamber 9, a transformer chamber 6, and a high-pressure chamber 4. The transformer chamber 6 is located between the low-pressure chamber 9 and the high-pressure chamber 4. The low-pressure chamber 9 is equipped with a low-pressure cabinet 8. The output cable of the diesel generator 11 enters the booster chamber 7 through the low-pressure cable trench 10 and is connected to the low-pressure cabinet 8.

[0024] Transformer 5 is installed in transformer room 6. The output end of low-voltage cabinet 8 is connected to the primary side of transformer 5. The secondary side of transformer 5 is connected to PT cabinet 2 in high-voltage room 4. High-voltage cabinet 3 is also installed in high-voltage room 4. The output end of PT cabinet 2 is connected to high-voltage cabinet 3.

[0025] The high-pressure chamber 4 contains a high-pressure concrete platform 17, on which the PT cabinet 2 and the high-pressure cabinet 3 are placed. A high-pressure cable trench 1 is also excavated underground in the high-pressure chamber 4. The high-pressure cable trench 1 extends outward to the booster chamber 7, and the high-pressure cable trench 1 is connected to the high-pressure concrete platform 17.

[0026] In this invention, the temporary power station is divided into a power generation compartment 12 and a pressure boosting compartment 7, which are perpendicular to each other. A low-pressure concrete platform is poured inside the power generation compartment 12, and several diesel generators 11 are installed side by side on the low-pressure concrete platform. A main oil inlet pipe 13 is installed at the rear end of the low-pressure concrete platform near the tail of the diesel generators 11. One end of the main oil inlet pipe 13 is the oil inlet end, and the other end is sealed. The oil inlet end extends out of the power generation compartment 12 and connects to the oil storage tank. Multiple ball valves 14 are installed on the main oil inlet pipe 13. Each ball valve 14 is connected to an oil inlet branch pipe, and each oil inlet branch pipe is connected to one diesel generator 11, so that one oil storage tank can supply oil to multiple diesel generators 11.

[0027] A low-voltage cable trench 10 is installed at the front end of the low-voltage concrete platform. The opening of the low-voltage cable trench 10 is directly opposite the front end of the diesel generator 11. The output cable of the diesel generator 11 is inserted into the low-voltage cable trench 10 through the opening. The end of the low-voltage cable trench 10 extends into the booster chamber 7, directly opposite the low-voltage chamber 9. The output cable of the diesel generator 11 is laid from the low-voltage cable trench 10 to the booster chamber 7 and is connected in parallel with the low-voltage cabinet 8 in the low-voltage chamber 9.

[0028] The pressure chamber is located between the low-voltage chamber 9 and the high-voltage chamber 4. The output cable of the low-voltage cabinet 8 is connected to the primary side of the transformer 5 in the transformer chamber 6. The secondary side output terminal of the transformer 5 is connected to the PT cabinet 2. The output terminal of the PT cabinet 2 is connected to the high-voltage cabinet 3. The output cable of the high-voltage cabinet 3 is inserted into the high-voltage cable trench 1 and laid along the high-voltage cable trench 1 to the outside of the booster chamber 7 to supply power to large equipment.

[0029] The overall layout of this utility model is simple and clear, separating the power generation and voltage boosting parts so that they do not interfere with each other, making it easier to install and maintain on site. Furthermore, after construction is completed, all equipment can be completely dismantled and transported to the next construction site for continued use, effectively saving costs.

[0030] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed herein, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A temporary power station for tunnel construction, characterized in that, It includes a power generation compartment, which contains several diesel generators placed side by side. The diesel generators are equipped with a centralized fuel supply pipeline, and the output cables of the diesel generators are connected to the booster compartment.

2. A temporary power station for tunnel construction according to claim 1, characterized in that, The generator compartment contains a low-pressure concrete platform, on which the diesel generator is installed. A low-pressure cable trench is located at the front end of the low-pressure concrete platform, extending into the booster compartment.

3. A temporary power station for tunnel construction according to claim 2, characterized in that, The centralized oil supply pipeline includes a main oil inlet pipe, which is installed on a low-pressure concrete platform and located at the rear end of the diesel generator. A flow meter is installed at the oil inlet of the main oil inlet pipe. Several ball valves are installed in sections on the main oil inlet pipe, each ball valve is connected to an oil inlet branch pipe, and each oil inlet branch pipe is connected to a diesel generator.

4. A temporary power station for tunnel construction according to claim 3, characterized in that, The pressurization chamber contains a low-pressure chamber, a transformer chamber, and a high-pressure chamber. The transformer chamber is located between the low-pressure chamber and the high-pressure chamber. The low-pressure chamber contains a low-pressure cabinet. The output cable of the diesel generator enters the pressurization chamber through a low-pressure cable trench and is connected to the low-pressure cabinet.

5. A temporary power station for tunnel construction according to claim 4, characterized in that, The transformer room contains a transformer. The output of the low-voltage switchgear is connected to the primary side of the transformer, and the secondary side of the transformer is connected to the PT switchgear in the high-voltage room. The high-voltage room also contains a high-voltage switchgear, and the output of the PT switchgear is connected to the high-voltage switchgear.

6. A temporary power station for tunnel construction according to claim 5, characterized in that, The high-pressure chamber contains a high-pressure concrete platform, on which the PT cabinet and high-pressure cabinet are placed. A high-pressure cable trench is also excavated underground in the high-pressure chamber, extending outwards to the booster chamber. The high-pressure cable trench is connected to the high-pressure concrete platform.

Images