Comprehensive utilization method and system based on water-rich tunnel

Abstract

The invention discloses a comprehensive utilization method and system based on a water-rich tunnel, and aims to solve the problems of water resource waste of the water-rich tunnel, difficult storage and transportation of hydrogen energy and power failure risk of the tunnel, the method comprises a hydroelectric generation room, a hydrogen production and energy storage device and the like, drained water in the tunnel is collected and introduced into the hydroelectric generation room for power generation, and one part of electric energy is used for hydrogen production and energy storage; one part supplies weak current to the tunnel; the hydrogen production device is used for storing hydrogen, conveying the hydrogen outwards and supplying energy to the hydrogen energy power generation device, and the generated power is supplied to the tunnel; the system comprises a tunnel, a hydroelectric generation and hydrogen production energy storage platform, a drainage channel, a power generation room, a hydrogen production device and the like. Water resources are fully utilized, the energy utilization efficiency is improved, meanwhile, the problem of hydrogen energy storage and transportation is solved, and hydrogenation and hydrogen extraction are facilitated; an emergency power supply is provided, the power failure risk is reduced, tunnel safety is guaranteed, and good application prospects and social benefits are achieved.

Description

Technical Field

[0001] The present invention relates to the field of comprehensive utilization of water bodies, and in particular to a comprehensive utilization method and system based on a water-rich tunnel. Background Art

[0002] With the rapid development of domestic infrastructure construction, the number of tunnel projects is increasing. According to statistics, the total number of domestic tunnels has exceeded 20,000 in recent years, with a total mileage of more than 20,000 kilometers, of which water-rich tunnels account for a considerable proportion. During the operation of water-rich tunnels, a large amount of water is discharged out of the tunnel through the central drainage ditch. However, the kinetic energy of these water resources has not been fully utilized, resulting in energy waste.

[0003] In the energy field, hydrogen energy, as a clean and efficient form of energy, is gradually gaining widespread attention. The development of hydrogen energy vehicles is an important direction for the application of hydrogen energy. However, the storage and transportation of hydrogen energy has always been a difficult problem, especially in remote areas. The high cost of hydrogen transportation for setting up hydrogen energy refueling stations for vehicles has limited the promotion and application of hydrogen energy vehicles to a certain extent.

[0004] At the same time, the power supply safety of the tunnel is also a crucial issue. The tunnel power supply is usually connected to the national grid power supply circuit. Once the national grid power supply circuit is cut off, the strong power (such as ventilation and lighting power, etc.) and weak power (such as communication and monitoring power in the tunnel) in the tunnel will be cut off. This power outage will bring serious risks to traffic safety in the tunnel. For example, the cessation of the ventilation system may lead to a decline in air quality, affecting the driver's vision and health; the failure of the lighting system will make the light in the tunnel dim, increasing the probability of traffic accidents.

[0005] In summary, there are currently deficiencies in the utilization of water resources in water-rich tunnels, storage and transportation of hydrogen energy, and safety of tunnel power supply. An innovative solution is urgently needed that can fully utilize the water resources in water-rich tunnels for power generation, hydrogen production and energy storage, and provide emergency power supply when the State Grid is out of power, so as to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a comprehensive utilization method and system based on water-rich tunnels. By building a hydroelectric power plant and a hydrogen production and storage device outside the tunnel, the kinetic energy of water is converted into electrical energy, and then converted into hydrogen energy, so as to realize the utilization of water resources in the central drainage ditch of the water-rich tunnel. At the same time, the electricity generated by hydropower can be used as a weak current emergency power supply for the tunnel, and the electricity generated by the hydrogen energy power generation device can be used as a strong current emergency power supply for the tunnel, so as to solve the traffic safety risk problem caused by power outages in the State Grid power supply circuit.

[0007] The present invention is achieved through the following technical solutions:

[0008] A comprehensive utilization method based on a water-rich tunnel comprises the following steps:

[0009] S1. Build a hydroelectric power generation and hydrogen energy storage platform at a suitable terrain location outside the tunnel, and build a hydroelectric power generation room, a hydrogen energy storage device, a tailwater ditch and a hydrogen energy power generation device on the hydroelectric power generation and hydrogen energy storage platform;

[0010] S2. The drainage in the tunnel is collected and introduced into the hydroelectric powerhouse to drive the hydroelectric generator in the hydroelectric powerhouse to generate electricity. The tailwater ditch discharges the used water in the hydroelectric powerhouse. The electricity generated by the hydroelectric generator is modulated by the hydroelectric transformer and transmitted to the hydrogen production and energy storage device and the weak current emergency power supply system in the tunnel respectively.

[0011] S3. The hydrogen production and energy storage device uses the electricity produced by the hydropower plant to produce and store hydrogen, and adds hydrogen to the hydrogen energy vehicle through the hydrogen filling port. When the hydrogen production is close to saturation, the hydrogen is taken away in time by the hydrogen storage and transportation vehicle. The hydrogen production and energy storage device also transports the stored hydrogen to the hydrogen energy power generation device for power generation. The electricity generated by the hydrogen energy power generation device supplies power to the high-voltage emergency power supply system in the tunnel.

[0012] In this scheme, since the hydrogen transportation cost of setting up a hydrogen energy refueling station for automobiles in remote areas is relatively high, and most of the water-rich tunnels are generally located in remote areas, the purpose of producing hydrogen in remote areas is achieved by directly using hydropower generated by the central drainage ditch of the tunnel to produce hydrogen, and a hydrogen refueling station is set up near the road at the tunnel entrance, which is very convenient for refueling hydrogen energy vehicles or taking hydrogen away by hydrogen storage and transportation vehicles. In addition, the electricity generated by hydropower in the central drainage ditch of the tunnel can be used as a weak current emergency power supply for the tunnel, and the electricity generated by the hydrogen energy power generation device can be used as a strong current emergency power supply for the tunnel, which can solve the traffic safety risks caused by power outages in the State Grid power supply circuit. At the same time, the drainage volume of the central drainage ditch of the water-rich tunnel is generally affected by seasonality, resulting in obvious differences in drainage volume. If the hydropower electricity is directly connected to the tunnel strong current emergency power supply in the dry season, it may not meet the use requirements. Therefore, the electricity generated by the hydrogen energy power generation device can be used as a strong current emergency power supply for the tunnel, which has stable voltage and current and can meet the use of strong current in the tunnel.

[0013] A further optimized solution is that when the tunnel is a single-hole tunnel, a single-hole tunnel central drainage ditch outlet is provided at the tunnel entrance of the tunnel, and the single-hole tunnel central drainage ditch outlet introduces drainage in the tunnel into a drainage channel outside the central drainage ditch hole, and the drainage channel outside the central drainage ditch hole introduces drainage into the hydropower house through a slope drainage channel;

[0014] The central drainage ditch outer drainage channel includes a single-hole tunnel central drainage ditch outer drainage channel and a single-hole tunnel central drainage ditch outer drainage communication channel, and the single-hole tunnel central drainage ditch outer drainage channel is connected to the single-hole tunnel central drainage ditch outlet and the single-hole tunnel central drainage ditch outer drainage communication channel respectively;

[0015] The slope drainage channel is a single-hole tunnel slope drainage channel, and the single-hole tunnel slope drainage channel is respectively connected to the single-hole tunnel central drainage ditch, the external drainage communication channel and the hydropower house.

[0016] According to a further optimization scheme, the cross-sectional areas of the central drainage ditch outlet of the single-hole tunnel, the drainage channel outside the central drainage ditch of the single-hole tunnel, the drainage connecting channel outside the central drainage ditch of the single-hole tunnel and the slope drainage channel of the single-hole tunnel are equal.

[0017] Further optimization scheme, when the tunnel is a double-hole tunnel, the left hole and the right hole of the tunnel are respectively provided with a central drainage ditch outlet of the left hole of the double-hole tunnel and a central drainage ditch outlet of the right hole of the double-hole tunnel, the central drainage ditch outlet of the left hole of the double-hole tunnel and the central drainage ditch outlet of the right hole of the double-hole tunnel will collect the drainage and introduce it into the drainage channel outside the central drainage ditch, and the drainage channel outside the central drainage ditch will introduce the drainage into the hydropower house through the slope drainage channel;

[0018] Wherein, the central drainage ditch outer-hole drainage channel includes the central drainage ditch outer-hole drainage channel of the left hole of the double-hole tunnel, the central drainage ditch outer-hole drainage channel of the right hole of the double-hole tunnel and the central drainage ditch outer-hole drainage communication channel of the double-hole tunnel. The central drainage ditch outer-hole drainage channel of the left hole of the double-hole tunnel is respectively connected to the central drainage ditch outlet of the left hole of the double-hole tunnel and the central drainage ditch outer-hole drainage communication channel of the double-hole tunnel. The central drainage ditch outer-hole drainage channel of the right hole of the double-hole tunnel is respectively connected to the central drainage ditch outlet of the right hole of the double-hole tunnel and the central drainage ditch outer-hole drainage communication channel of the double-hole tunnel.

[0019] The slope drainage channel is a double-hole tunnel slope drainage channel, and the double-hole tunnel slope drainage channel is respectively connected to the double-hole tunnel central drainage ditch, the outer drainage communication channel and the hydropower house.

[0020] A further optimization scheme is that the cross-sectional area of ​​the drainage channel outside the central drainage ditch of the left tunnel of the double-hole tunnel is equal to the cross-sectional area of ​​the outlet of the central drainage ditch of the left tunnel of the double-hole tunnel, the cross-sectional area of ​​the drainage channel outside the central drainage ditch of the right tunnel of the double-hole tunnel is equal to the outlet of the central drainage ditch of the right tunnel of the double-hole tunnel, the cross-sectional area of ​​the drainage connecting channel outside the central drainage ditch of the double-hole tunnel is equal to the sum of the cross-sectional areas of the drainage channel outside the central drainage ditch of the left tunnel of the double-hole tunnel and the drainage channel outside the central drainage ditch of the right tunnel of the double-hole tunnel, and the cross-sectional area of ​​the slope drainage channel of the double-hole tunnel is equal to the cross-sectional area of ​​the drainage connecting channel outside the central drainage ditch of the double-hole tunnel.

[0021] A comprehensive utilization system based on water-rich tunnels is also proposed, including:

[0022] A tunnel, wherein a central drainage ditch outlet is provided at the tunnel entrance of the tunnel;

[0023] A hydroelectric power generation and hydrogen production and energy storage platform, which is arranged outside the tunnel, and has a hydroelectric power generation room, a hydrogen production and energy storage device, and a hydrogen energy generation device, and is connected to the road surface outside the tunnel through a walkway;

[0024] A drainage channel outside the central drainage ditch hole, wherein the drainage channel outside the central drainage ditch hole connects the central drainage ditch outlet and the slope drainage channel, wherein the slope drainage channel leads the drainage to the hydroelectric power house, wherein the hydroelectric power house includes a hydroelectric generator and a hydroelectric transformer, wherein the hydroelectric generator converts the drainage into electrical energy and transmits the electrical energy to the hydroelectric transformer, wherein the hydroelectric transformer transmits the modulated electrical energy to the hydrogen production and energy storage device and the weak current emergency power supply system in the tunnel;

[0025] The hydrogen production and energy storage device generates hydrogen through electrical energy and is connected to the hydrogen energy power generation device through a hydrogen transmission pipeline, and can transmit hydrogen to the outside through the hydrogen filling port. The hydrogen energy power generation device transmits the generated electricity to the high-voltage emergency power supply system in the tunnel.

[0026] The system further optimizes the scheme, and the system also includes a switching device for switching the tunnel weak current emergency power supply and the strong current emergency power supply. When the state grid power supply circuit is normal, the switching device switches the tunnel weak current emergency power supply and the strong current emergency power supply to the state grid power supply circuit; when the state grid power supply circuit is out of power, the switching device switches the tunnel weak current emergency power supply to the hydropower transformer of the hydropower house, and switches the tunnel strong current emergency power supply to the hydrogen energy power generation transformer of the hydrogen energy power generation device.

[0027] The system further optimizes the solution. When the tunnel is a single-hole tunnel, the central drain ditch outlet includes the central drain ditch outlet of the single-hole tunnel, the central drain ditch outer-hole drainage channel includes the central drain ditch outer-hole drainage channel of the single-hole tunnel and the central drain ditch outer-hole drainage connecting channel of the single-hole tunnel, the central drain ditch outer-hole drainage channel of the single-hole tunnel is respectively connected to the central drain ditch outlet of the single-hole tunnel and the central drain ditch outer-hole drainage connecting channel of the single-hole tunnel, the slope drainage channel includes the single-hole tunnel slope drainage channel, the single-hole tunnel slope drainage channel is respectively connected to the central drain ditch outer-hole drainage connecting channel of the single-hole tunnel and the hydropower house, and the cross-sectional areas of the central drain ditch outlet of the single-hole tunnel, the central drain ditch outer-hole drainage channel of the single-hole tunnel, the central drain ditch outer-hole drainage connecting channel of the single-hole tunnel and the slope drainage channel of the single-hole tunnel are equal.

[0028] The system further optimizes the scheme. When the tunnel is a double-hole tunnel, the central drainage ditch outlet includes the central drainage ditch outlet of the left hole of the double-hole tunnel and the central drainage ditch outlet of the right hole of the double-hole tunnel. The central drainage ditch outer-hole drainage channel includes the central drainage ditch outer-hole drainage channel of the left hole of the double-hole tunnel, the central drainage ditch outer-hole drainage channel of the right hole of the double-hole tunnel and the central drainage ditch outer-hole drainage communication channel of the double-hole tunnel. The outer-hole drainage channel of the central drainage ditch of the left hole of the double-hole tunnel is respectively connected to the central drainage ditch outlet of the left hole of the double-hole tunnel and the central drainage ditch outer-hole drainage communication channel of the double-hole tunnel. The outer-hole drainage channel of the central drainage ditch of the right hole of the double-hole tunnel is respectively connected to the central drainage ditch outlet of the right hole of the double-hole tunnel and the central drainage ditch outer-hole drainage communication channel of the double-hole tunnel.

[0029] The slope drainage channel includes a double-hole tunnel slope drainage channel, and the double-hole tunnel slope drainage channel is respectively connected to the double-hole tunnel central drainage ditch, the outer drainage communication channel and the hydropower house.

[0030] The system further optimizes the solution, where the cross-sectional area of ​​the drainage channel outside the central drainage ditch of the left tunnel of the double-hole tunnel is equal to the cross-sectional area of ​​the outlet of the central drainage ditch of the left tunnel of the double-hole tunnel, the cross-sectional area of ​​the drainage channel outside the central drainage ditch of the right tunnel of the double-hole tunnel is equal to the outlet of the central drainage ditch of the right tunnel of the double-hole tunnel, the cross-sectional area of ​​the drainage connecting channel outside the central drainage ditch of the double-hole tunnel is equal to the sum of the cross-sectional areas of the drainage channel outside the central drainage ditch of the left tunnel of the double-hole tunnel and the drainage channel outside the central drainage ditch of the right tunnel of the double-hole tunnel, and the cross-sectional area of ​​the slope drainage channel of the double-hole tunnel is equal to the cross-sectional area of ​​the drainage connecting channel outside the central drainage ditch of the double-hole tunnel.

[0031] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0032] 1. The present invention makes full use of the water resources in the water-rich tunnel, realizes the effective utilization of the kinetic energy of the water resources into electrical energy and then into hydrogen energy, and improves the energy utilization efficiency.

[0033] 2. The present invention solves the problem of difficult storage and transportation of hydrogen energy in remote areas. By setting up a hydrogen refueling station near the tunnel entrance, it is convenient for hydrogen energy vehicles to be refueled and hydrogen storage and transportation vehicles to take hydrogen.

[0034] 3. The present invention utilizes the hydroelectric power generated in the central drainage ditch of the tunnel as a weak-current emergency power supply for the tunnel, and the power generated by the hydrogen energy power generation device can be used as a strong-current emergency power supply for the tunnel, which can solve the traffic safety risks caused by power outages in the national grid power supply circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0036] Figure 1 This is a diagram of an embodiment of the present invention in a single-hole water-rich tunnel.

[0037] Figure 2 This is a diagram of an embodiment of the present invention in a double-hole water-rich tunnel.

[0038] Figure 3 This is a detailed diagram of the external drainage of the present invention in a double-hole water-rich tunnel.

[0039] Figure 4 This is a detailed diagram of the external drainage of the present invention in a single-hole water-rich tunnel.

[0040] Figure 5 The invention flow chart is shown in FIG.

[0041] Marks and corresponding parts names in the attached drawings:

[0042] 1-tunnel, 2-central drainage ditch outlet, 201-central drainage ditch outlet of the left tunnel of the double-hole tunnel, 202-central drainage ditch outlet of the right tunnel of the double-hole tunnel, 203-central drainage ditch outlet of the single-hole tunnel, 3-tunnel entrance, 4-road surface outside the tunnel, 5-drainage channel outside the central drainage ditch, 501-drainage channel outside the central drainage ditch of the left tunnel of the double-hole tunnel, 502-drainage channel outside the central drainage ditch of the right tunnel of the double-hole tunnel, 503-drainage channel outside the central drainage ditch of the double-hole tunnel Communication channel, 504-single-hole tunnel central drainage ditch and external drainage channel, 505-single-hole tunnel central drainage ditch and external drainage communication channel, 6-slope drainage channel, 601-double-hole tunnel slope drainage channel, 602-single-hole tunnel slope drainage channel, 7-hydropower plant, 8-hydrogen production and storage device, 9-tailwater ditch, 10-hydropower generation and hydrogen production and storage platform, 11-hydrogen energy power generation device, 12-hydrogen refueling port, 13-hydrogen transmission pipeline, 14-access road. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0044] At present, there are a large number of water-rich tunnels in the country. The drainage of the tunnels is only discharged out of the tunnel through the central drainage ditch, and the water resources are not utilized. Therefore, the present invention provides the following embodiment to build a hydropower plant and a hydrogen energy storage device outside the tunnel, convert the kinetic energy of water into electrical energy, and then convert it into hydrogen energy, so as to realize the utilization of water resources in the central drainage ditch of the water-rich tunnel. At the same time, the electricity generated by the hydropower generation can be used as a weak-current emergency power supply for the tunnel, and the electricity generated by the hydrogen energy generation device can be used as a strong-current emergency power supply for the tunnel, so as to solve the traffic safety risk problem caused by the power outage of the State Grid power supply circuit.

[0045] Example 1

[0046] This embodiment 1 provides a comprehensive utilization method based on a water-rich tunnel, such as Figure 1-Figure 5 As shown, the following steps are included:

[0047] S1. Build a temporary road 14 and a hydroelectric power generation and hydrogen production storage platform 10 at a suitable terrain position outside the tunnel 1, build a hydroelectric power generation room 7, a hydrogen production storage device 8, a tailwater ditch 9 and a hydrogen energy generation device 11 on the hydroelectric power generation and hydrogen production storage platform 10, and connect the hydroelectric power generation and hydrogen production storage platform 10 to the road surface 4 outside the tunnel through the temporary road 14;

[0048] S2. The drainage in the tunnel 1 is collected and introduced into the hydroelectric power house 7 to drive the hydroelectric generator in the hydroelectric power house 7 to generate electricity. The tailwater ditch 9 discharges the water used in the hydroelectric power house. The electricity generated by the hydroelectric generator is modulated by the hydroelectric transformer and then transmitted to the hydrogen production energy storage device 8 and the weak current emergency power supply system in the tunnel 1;

[0049] S3. The hydrogen production and energy storage device 8 uses the electricity produced by the hydropower plant 7 to produce and store hydrogen, and adds hydrogen to the hydrogen energy vehicle through the hydrogen filling port 12. When the hydrogen production is close to saturation, the hydrogen is taken away in time by the hydrogen storage and transportation vehicle. The hydrogen production and energy storage device 8 also transports the stored hydrogen to the hydrogen energy power generation device 11 for power generation. The electricity generated by the hydrogen energy power generation device 11 supplies energy to the high-voltage emergency power supply system in the tunnel 1.

[0050] Specifically, Figure 1 and Figure 4 When the tunnel 1 is a single-hole tunnel, a central drainage ditch outlet 2 is provided at the tunnel entrance 3 of the tunnel 1, and the central drainage ditch outlet 2 includes the single-hole tunnel central drainage ditch outlet 203, and the single-hole tunnel central drainage ditch outlet 203 introduces the drainage in the tunnel 1 into the central drainage ditch outer-hole drainage channel 5, and the central drainage ditch outer-hole drainage channel 5 introduces the drainage into the hydropower plant 7 through the slope drainage channel 6; here, the central drainage ditch outer-hole drainage channel 5 includes the single-hole tunnel central drainage ditch outer-hole drainage channel 504 and the single-hole tunnel central drainage ditch outer-hole drainage connecting channel 505, and the slope drainage channel 6 includes the single-hole tunnel slope drainage channel 602, and the single-hole tunnel central drainage ditch outer-hole drainage channel 504 is respectively connected to the single-hole tunnel central drainage ditch outlet 203 and the single-hole tunnel central drainage ditch outer-hole drainage connecting channel 505, and the single-hole tunnel slope drainage channel 602 is respectively connected to the single-hole tunnel central drainage ditch outer-hole drainage connecting channel 505 and the hydropower plant 7.

[0051] At the same time, in order to reduce the difference in drainage volume, the cross-sectional areas of the above-mentioned single-hole tunnel central drainage ditch outlet 203, the single-hole tunnel central drainage ditch external drainage channel 504, the single-hole tunnel central drainage ditch external drainage connecting channel 505 and the single-hole tunnel slope drainage channel 602 are equal.

[0052] Specifically, Figure 2 and Figure 3As shown, when the tunnel 1 is a double-hole tunnel, the left hole and the right hole of the tunnel 1 are respectively provided with the central drainage ditch outlet 201 of the left hole of the double-hole tunnel and the central drainage ditch outlet 202 of the right hole of the double-hole tunnel. The central drainage ditch outlet 201 of the left hole of the double-hole tunnel and the central drainage ditch outlet 202 of the right hole of the double-hole tunnel will introduce the drainage into the central drainage ditch hole drainage channel 5 after collection. The central drainage ditch hole drainage channel 5 will introduce the drainage into the hydropower room 7 through the slope drainage channel 6. Here, the central drainage ditch hole drainage channel 5 includes the central drainage ditch hole drainage channel 501 of the left hole of the double-hole tunnel, the central drainage ditch hole drainage channel 502 of the right hole of the double-hole tunnel and The central drainage ditch of the double-hole tunnel has an external drainage communication channel 503, and the slope drainage channel 6 includes the double-hole tunnel slope drainage channel 601. The external drainage channel 501 of the central drainage ditch of the left hole of the double-hole tunnel is respectively connected to the central drainage ditch outlet 201 of the left hole of the double-hole tunnel and the external drainage communication channel 503 of the central drainage ditch of the double-hole tunnel. The external drainage channel 502 of the central drainage ditch of the right hole of the double-hole tunnel is respectively connected to the central drainage ditch outlet 201 of the right hole of the double-hole tunnel and the external drainage communication channel 503 of the central drainage ditch of the double-hole tunnel. The slope drainage channel 601 of the double-hole tunnel is respectively connected to the external drainage communication channel 505 of the central drainage ditch of the double-hole tunnel and the hydropower house 7.

[0053] At the same time, in order to reduce the difference in drainage volume, the cross-sectional area of ​​the drainage channel 501 outside the central drainage ditch of the left tunnel of the Shuangdong Tunnel is equal to the cross-sectional area of ​​the central drainage ditch outlet 201 of the left tunnel of the Shuangdong Tunnel, the cross-sectional area of ​​the drainage channel 502 outside the central drainage ditch of the right tunnel of the Shuangdong Tunnel is equal to the central drainage ditch outlet 202 of the right tunnel of the Shuangdong Tunnel, the cross-sectional area of ​​the drainage connecting channel 503 outside the central drainage ditch of the Shuangdong Tunnel is equal to the sum of the cross-sectional areas of the drainage channel 501 outside the central drainage ditch of the left tunnel of the Shuangdong Tunnel and the drainage channel 502 outside the central drainage ditch of the right tunnel of the Shuangdong Tunnel, and the cross-sectional area of ​​the slope drainage channel 601 of the Shuangdong Tunnel is equal to the cross-sectional area of ​​the drainage connecting channel 503 outside the central drainage ditch of the Shuangdong Tunnel.

[0054] Example 2

[0055] This embodiment 2 is based on a comprehensive utilization method based on a water-rich tunnel provided in embodiment 1, and builds a comprehensive utilization system based on a water-rich tunnel, including a tunnel 1, a hydroelectric power generation and hydrogen production and energy storage platform 10, and a central drainage ditch tunnel drainage channel 5. The tunnel 1 is provided with a central drainage ditch outlet 2 at the tunnel entrance 3, and the hydroelectric power generation and hydrogen production and energy storage platform 10 is arranged on the outside of the tunnel 1, on which a hydroelectric power generation room 7, a hydrogen production and energy storage device 8 and a hydrogen energy generation device 11 are arranged, and are connected to the road surface 4 outside the tunnel through a walkway 14, and the central drainage ditch tunnel drainage channel 5 connects the central drainage ditch outlet 2 and the inclined Slope drainage channel 6, the slope drainage channel 6 leads the drainage to the hydroelectric power house 7, the hydroelectric power house 7 includes a hydroelectric generator and a hydroelectric transformer, the hydroelectric generator converts the drainage into electrical energy and transmits the electrical energy to the hydroelectric transformer, the hydroelectric transformer transmits the modulated electrical energy to the hydrogen production and storage device 8 and the weak current emergency power supply system in the tunnel; the hydrogen production and storage device 8 generates hydrogen through electrical energy and is connected to the hydrogen energy generation device 11 through the hydrogen transmission pipeline 13, and can transmit hydrogen to the outside through the hydrogen filling port 12. At the same time, the hydrogen energy generation device 11 transmits the generated electricity to the strong current emergency power supply system in the tunnel 1.

[0056] Example 3

[0057] This embodiment 3 is further improved on the basis of embodiment 2, and the difference is that the comprehensive utilization system in this embodiment also includes a switching device for switching the tunnel weak current emergency power supply and the strong current emergency power supply. The switching device is a prior art, such as ATS. When the state grid power supply circuit is normal, the switching device switches the tunnel weak current emergency power supply and the strong current emergency power supply to the state grid power supply circuit; when the state grid power supply circuit is out of power, the switching device switches the tunnel weak current emergency power supply to the hydropower transformer of the hydropower room 7, and switches the tunnel strong current emergency power supply to the hydrogen energy power generation transformer of the hydrogen energy power generation device 11.

[0058] Example 4

[0059] Since the tunnel 1 can be a newly built single-hole tunnel or an already built single-hole tunnel, when applying a comprehensive utilization system based on a water-rich tunnel in Example 2 or Example 3, it can be carried out in the following manner:

[0060] When constructing a new single-hole tunnel, refer to Figure 1 and Figure 4 As shown:

[0061] First, find a suitable terrain location outside the tunnel 1 to build a temporary road 14 and a hydroelectric power generation and hydrogen production and storage platform 10, and build a hydroelectric power house 7, a hydrogen production and storage device 8, a tailwater ditch 9 and a hydrogen energy power generation device 11 on the hydroelectric power generation and hydrogen production and storage platform 10.

[0062] According to the specific position of the single-hole tunnel central drainage ditch outlet 203 of the tunnel entrance 3, the single-hole tunnel central drainage ditch external drainage channel 504 is set, and according to the construction design of the road surface 4 outside the tunnel, the terrain outside the tunnel, and the location of the hydropower generation and hydrogen production storage platform 10, the single-hole tunnel central drainage ditch external drainage channel 504 and the single-hole tunnel central drainage ditch external drainage communication channel 505 are reasonably constructed.

[0063] A single-hole tunnel slope drainage channel 602 is constructed according to the specific location of the single-hole tunnel central drainage ditch external drainage communication channel 505 and the hydroelectric power house 7. When the hydroelectric power house 7 has not yet been put into use, the drainage of the single-hole tunnel slope drainage channel 602 can be directly led to the tailwater ditch 9 for discharge.

[0064] The hydroelectric transformer in the hydroelectric power room 7 is connected to the hydrogen production energy storage device 8 and the tunnel weak current emergency power supply respectively, the hydrogen production energy storage device 8 is connected to the hydrogen energy power generation device 11 through the hydrogen transmission pipeline 13, and the hydrogen energy power generation transformer in the hydrogen energy power generation device 11 is connected to the tunnel strong current emergency power supply.

[0065] The single-hole tunnel slope drainage channel 602 is connected to the hydropower room 7, the hydropower generator and hydropower transformer in the hydropower room 7 are started, the hydrogen production and energy storage device 8 is started, and the tunnel weak current emergency power supply is turned on. Check whether the hydropower generator and hydropower transformer in the hydropower room 7, the hydrogen production and energy storage device 8 and the tunnel weak current emergency power supply can work normally; if they can work normally, proceed to the subsequent installation steps; if they cannot work normally, check whether the above-mentioned installation steps are omitted or there is equipment failure, and proceed again after the inspection is completed.

[0066] Turn off the weak-current emergency power supply of the tunnel, enable the national grid power supply circuit to supply weak-current power to the tunnel, open the hydrogen transmission pipeline 13 between the hydrogen production and energy storage device 8 and the hydrogen energy generation device 11, turn on the strong-current emergency power supply of the tunnel, start the hydrogen energy generation device 11, and check whether the hydrogen energy generation device 11 and the strong-current emergency power supply of the tunnel can work normally. If they can work normally, proceed to the subsequent installation steps; if they cannot work normally, check whether there are any steps missing or equipment failures in the installation steps, and proceed again after the inspection is completed.

[0067] Finally, turn off the tunnel's emergency power supply, enable the State Grid power supply circuit to supply power to the tunnel, turn off the hydrogen energy generation device 11, and close the hydrogen transmission pipeline 13 between the hydrogen production and storage device 8 and the hydrogen energy generation device 11. Hydrogen can be added to the hydrogen energy vehicle through the hydrogen filling port 12. When the hydrogen production is close to saturation, the hydrogen can be taken away in time through the hydrogen storage and transportation vehicle.

[0068] If it is a built single-hole tunnel, please refer to Figure 1 and Figure 4 As shown:

[0069] First, find a suitable terrain location outside the built tunnel 1 to build a temporary road 14 and a hydroelectric power generation and hydrogen production energy storage platform 10. The hydroelectric power generation and hydrogen production energy storage platform 10 should be as close as possible to the previously built single-hole tunnel central drainage ditch and external drainage communication channel 505. A hydroelectric powerhouse 7, a hydrogen production energy storage device 8, a tailwater ditch 9 and a hydrogen energy power generation device 11 are built on the hydroelectric power generation and hydrogen production energy storage platform 10.

[0070] A single-hole tunnel slope drainage channel 602 is constructed according to the specific location of the hydroelectric power house 7 and the previously built single-hole tunnel central drainage ditch external drainage communication channel 505. When the hydroelectric power house 7 has not yet been put into use, the drainage of the single-hole tunnel slope drainage channel 602 is directly led to the tailwater ditch 9 for discharge.

[0071] The hydroelectric transformer in the hydroelectric power room 7 is connected to the hydrogen production energy storage device 8 and the tunnel weak current emergency power supply respectively, the hydrogen production energy storage device 8 is connected to the hydrogen energy power generation device 11 through the hydrogen transmission pipeline 13, and the hydrogen energy power generation transformer in the hydrogen energy power generation device 11 is connected to the tunnel strong current emergency power supply.

[0072] The single-hole tunnel slope drainage channel 602 is connected to the hydropower house 7, the hydropower generator and hydropower transformer in the hydropower house 7 are started, the hydrogen production and energy storage device 8 is started, the tunnel weak current emergency power supply is turned on, and the hydropower generator and hydropower transformer in the hydropower house 7, the hydrogen production and energy storage device 8 and the tunnel weak current emergency power supply are checked to see whether they can work normally. If they can work normally, proceed to the subsequent installation steps; if they cannot work normally, check whether the above installation steps are omitted or there is equipment failure, and proceed again after the inspection is completed.

[0073] Turn off the weak-current emergency power supply of the tunnel, enable the national grid power supply circuit to supply weak-current power to the tunnel, open the hydrogen transmission pipeline 13 between the hydrogen production and energy storage device 8 and the hydrogen energy generation device 11, turn on the strong-current emergency power supply of the tunnel, start the hydrogen energy generation device 11, and check whether the hydrogen energy generation device 11 and the strong-current emergency power supply of the tunnel can work normally. If they can work normally, proceed to the subsequent installation steps; if they cannot work normally, check whether there are any steps missing or equipment failures in the above installation steps, and proceed again after the inspection is completed.

[0074] Finally, turn off the tunnel's emergency power supply, enable the State Grid power supply circuit to supply power to the tunnel, turn off the hydrogen energy power generation device 11, and close the hydrogen transmission pipeline 13 between the hydrogen production and storage device 8 and the hydrogen energy power generation device 11. Hydrogen can be added to the hydrogen energy vehicle through the hydrogen filling port 12. When the hydrogen production is close to saturation, the hydrogen can be taken away in time through the hydrogen storage and transportation vehicle.

[0075] Example 5

[0076] Since the tunnel 1 can be a newly built double-hole tunnel or an already built double-hole tunnel, when applying a comprehensive utilization system based on a water-rich tunnel in Example 2 or Example 3, it can be carried out in the following manner:

[0077] When constructing a new twin-tube tunnel, refer to Figure 2 and Figure 3 As shown:

[0078] First, find a suitable terrain location outside the tunnel 1 to build a temporary road 14 and a hydroelectric power generation and hydrogen production and storage platform 10, and build a hydroelectric power house 7, a hydrogen production and storage device 8, a tailwater ditch 9 and a hydrogen energy power generation device 11 on the hydroelectric power generation and hydrogen production and storage platform 10.

[0079] According to the specific positions of the central drainage ditch outlet 201 of the left tunnel of the double tunnel and the central drainage ditch outlet 202 of the right tunnel of the double tunnel, the outer drainage channel 501 of the central drainage ditch of the left tunnel of the double tunnel and the outer drainage channel 502 of the central drainage ditch of the right tunnel of the double tunnel are set at the tunnel entrance 3. According to the construction design of the road surface 4 outside the tunnel, the terrain outside the tunnel and the location of the hydropower generation and hydrogen production and storage platform 10, the lengths of the outer drainage channel 501 of the central drainage ditch of the left tunnel, the outer drainage channel 502 of the central drainage ditch of the right tunnel and the outer drainage connecting channel 503 of the central drainage ditch of the double tunnel are reasonably constructed.

[0080] According to the specific location of the double tunnel tunnel central drainage ditch drainage communication channel 503 and the hydropower house 7, the double tunnel tunnel slope drainage channel 601 is built. Before the hydropower house 7 is not yet enabled, the drainage of the double tunnel tunnel slope drainage channel 601 is directly led to the tailwater ditch 9 for discharge.

[0081] The hydroelectric transformer in the hydroelectric power room 7 is connected to the hydrogen production energy storage device 8 and the tunnel weak power supply respectively, the hydrogen production energy storage device 8 is connected to the hydrogen energy power generation device 11 through the hydrogen transmission pipeline 13, and the hydrogen energy power generation transformer in the hydrogen energy power generation device 11 is connected to the tunnel strong power supply.

[0082] Connect the slope drainage channel 601 of the double-hole tunnel to the hydropower house 7, start the hydropower generator and hydropower transformer in the hydropower house 7, start the hydrogen energy storage device 8, turn on the tunnel weak current emergency power supply, and check whether the hydropower generator and hydropower transformer in the hydropower house 7, the hydrogen energy storage device 8 and the tunnel weak current emergency power supply can work normally. If they can work normally, proceed to the subsequent installation steps; if they cannot work normally, check whether there are omissions or equipment failures in the above installation steps, and proceed again after the inspection is completed.

[0083] Turn off the weak-current emergency power supply of the tunnel, enable the national grid power supply circuit to supply weak-current power to the tunnel, open the hydrogen transmission pipeline 13 between the hydrogen production and energy storage device 8 and the hydrogen energy generation device 11, turn on the strong-current emergency power supply of the tunnel, start the hydrogen energy generation device 11, and check whether the hydrogen energy generation device 11 and the strong-current emergency power supply of the tunnel can work normally. If they can work normally, proceed to the trench installation step; if they cannot work normally, check whether there are any steps missing or equipment failures in the above installation steps, and proceed again after the inspection is completed.

[0084] Finally, turn off the tunnel's emergency power supply, enable the State Grid power supply circuit to supply power to the tunnel, turn off the hydrogen energy power generation device 11, and close the hydrogen transmission pipeline 13 between the hydrogen production and storage device 8 and the hydrogen energy power generation device 11. Hydrogen can be added to the hydrogen energy vehicle through the hydrogen filling port 12. When the hydrogen production is close to saturation, the hydrogen can be taken away in time through the hydrogen storage and transportation vehicle.

[0085] For a built double tunnel, please refer to Figure 2 and Figure 3 As shown:

[0086] First, find a suitable terrain location outside the tunnel 1 to build a temporary road 14 and a hydroelectric power generation and hydrogen production and energy storage platform 1). The hydroelectric power generation and hydrogen production and energy storage platform 10 is as close as possible to the previously built double-hole tunnel central drainage ditch and external drainage communication channel 503. A hydroelectric power house 7, a hydrogen production and energy storage device 8, a tailwater ditch 9 and a hydrogen energy power generation device 11 are built on the hydroelectric power generation and hydrogen production and energy storage platform 10.

[0087] A double-hole tunnel slope drainage channel 601 is built according to the specific location of the hydropower plant 7 and the previously built double-hole tunnel central drainage ditch external drainage communication channel 503. Before the hydropower plant 7 is put into use, the drainage of the double-hole tunnel slope drainage channel 601 is directly led to the tailwater ditch 9 for discharge.

[0088] The hydroelectric transformer in the hydroelectric power room 7 is connected to the hydrogen production energy storage device 8 and the tunnel weak current emergency power supply respectively, the hydrogen production energy storage device 8 is connected to the hydrogen energy power generation device 11 through the hydrogen transmission pipeline 13, and the hydrogen energy power generation transformer in the hydrogen energy power generation device 11 is connected to the tunnel strong current emergency power supply.

[0089] Connect the slope drainage channel 601 of the double-hole tunnel to the hydropower house 7, start the hydropower generator and hydropower transformer in the hydropower house 7, start the hydrogen energy storage device 8, turn on the tunnel weak current emergency power supply, and check whether the hydropower generator and hydropower transformer in the hydropower house 7, the hydrogen energy storage device 8 and the tunnel weak current emergency power supply can work normally. If they can work normally, proceed to the subsequent installation steps; if they cannot work normally, check whether there are omissions or equipment failures in the above installation steps, and proceed again after the inspection is completed.

[0090] Turn off the weak-current emergency power supply of the tunnel, enable the national grid power supply circuit to supply weak-current power to the tunnel, open the hydrogen transmission pipeline 13 between the hydrogen production and energy storage device 8 and the hydrogen energy generation device 11, turn on the strong-current emergency power supply of the tunnel, start the hydrogen energy generation device 11, and check whether the hydrogen energy generation device 11 and the strong-current emergency power supply of the tunnel can work normally. If they can work normally, proceed to the subsequent installation steps; if they cannot work normally, check whether there are any steps missing or equipment failures in the aforementioned installation steps, and proceed again after the inspection is completed.

[0091] Finally, turn off the tunnel's emergency power supply, enable the State Grid power supply circuit to supply power to the tunnel, turn off the hydrogen energy power generation device 11, and close the hydrogen transmission pipeline 13 between the hydrogen production and storage device 8 and the hydrogen energy power generation device 11. Hydrogen can be added to the hydrogen energy vehicle through the hydrogen filling port 12. When the hydrogen production is close to saturation, the hydrogen can be taken away in time through the hydrogen storage and transportation vehicle.

[0092] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A comprehensive utilization method based on a water-rich tunnel, characterized in that: The steps include: S1. constructing a hydroelectric power generation and hydrogen production and energy storage platform (10) at a suitable terrain location outside the tunnel (1), and constructing a hydroelectric power generation room (7), a hydrogen production and energy storage device (8), a tailwater ditch (9) and a hydrogen energy generation device (11) on the hydroelectric power generation and hydrogen production and energy storage platform (10); S2. The drainage in the tunnel (1) is collected and introduced into the hydroelectric powerhouse (7) to drive the hydroelectric generator in the hydroelectric powerhouse (7) to generate electricity. The tailwater ditch (9) discharges the used water in the hydroelectric powerhouse (7). The electricity generated by the hydroelectric generator is modulated by the hydroelectric transformer and then transmitted to the hydrogen production energy storage device (8) and the weak current emergency power supply system in the tunnel (1). S3. The hydrogen production and energy storage device (8) uses the electric energy produced by the hydropower plant (7) to produce and store hydrogen, and adds hydrogen to the hydrogen energy vehicle through the hydrogen filling port (12). When the hydrogen production is close to saturation, the hydrogen is promptly taken away by the hydrogen storage and transportation vehicle. The hydrogen production and energy storage device (8) also transports the stored hydrogen to the hydrogen energy power generation device (11) for power generation. The electric energy generated by the hydrogen energy power generation device (11) supplies energy to the high-voltage emergency power supply system in the tunnel (1).

2. A comprehensive utilization method based on a water-rich tunnel according to claim 1, characterized in that: When the tunnel (1) is a single-hole tunnel, a single-hole tunnel central drainage ditch outlet (203) is provided at the tunnel entrance (3) of the tunnel (1), and the single-hole tunnel central drainage ditch outlet (203) introduces drainage in the tunnel (1) into a drainage channel (5) outside the central drainage ditch hole, and the drainage channel (5) outside the central drainage ditch hole introduces drainage into the hydropower house (7) through a slope drainage channel (6); The central drainage ditch outer drainage channel (5) comprises a single-hole tunnel central drainage ditch outer drainage channel (504) and a single-hole tunnel central drainage ditch outer drainage communication channel (505), and the single-hole tunnel central drainage ditch outer drainage channel (504) is connected to the single-hole tunnel central drainage ditch outlet (203) and the single-hole tunnel central drainage ditch outer drainage communication channel (505) respectively; The slope drainage channel (6) is a single-hole tunnel slope drainage channel (602), and the single-hole tunnel slope drainage channel (602) is respectively connected to the single-hole tunnel central drainage ditch, the external drainage communication channel (505) and the hydropower house (7).

3. A comprehensive utilization method based on a water-rich tunnel according to claim 2, characterized in that: The cross-sectional areas of the central drainage ditch outlet (203) of the single-hole tunnel, the drainage channel outside the central drainage ditch of the single-hole tunnel (504), the drainage connection channel outside the central drainage ditch of the single-hole tunnel (505) and the slope drainage channel (602) of the single-hole tunnel are equal.

4. A comprehensive utilization method based on a water-rich tunnel according to claim 1, characterized in that: When the tunnel (1) is a double-hole tunnel, the left hole and the right hole of the tunnel (1) are respectively provided with a central drainage ditch outlet (201) of the left hole of the double-hole tunnel and a central drainage ditch outlet (202) of the right hole of the double-hole tunnel, the central drainage ditch outlet (201) of the left hole of the double-hole tunnel and the central drainage ditch outlet (202) of the right hole of the double-hole tunnel collect and introduce the drainage into the drainage channel (5) outside the central drainage ditch, and the drainage channel (5) outside the central drainage ditch introduces the drainage into the hydropower house (7) through the slope drainage channel (6); The central drainage ditch outer drainage channel (5) comprises a central drainage ditch outer drainage channel (501) of the left tunnel of the double tunnel tunnel, a central drainage ditch outer drainage channel (502) of the right tunnel of the double tunnel tunnel and a central drainage ditch outer drainage communication channel (503) of the double tunnel tunnel. The central drainage ditch outer drainage channel (501) of the left tunnel of the double tunnel tunnel is respectively connected to the central drainage ditch outlet (201) of the left tunnel of the double tunnel tunnel and the central drainage ditch outer drainage communication channel (503) of the double tunnel tunnel. The central drainage ditch outer drainage channel (502) of the right tunnel of the double tunnel tunnel is respectively connected to the central drainage ditch outlet (202) of the right tunnel of the double tunnel tunnel and the central drainage ditch outer drainage communication channel (503) of the double tunnel tunnel. The slope drainage channel (6) is a double-hole tunnel slope drainage channel (601), and the double-hole tunnel slope drainage channel (601) is respectively connected to the double-hole tunnel central drainage ditch, the outer drainage communication channel (503) and the hydropower house (7).

5. A comprehensive utilization method based on a water-rich tunnel according to claim 4, characterized in that: The cross-sectional area of ​​the drainage channel (501) outside the central drainage ditch of the left tunnel of the double tunnel is equal to the cross-sectional area of ​​the central drainage ditch outlet (201) of the left tunnel of the double tunnel; the cross-sectional area of ​​the drainage channel (502) outside the central drainage ditch of the right tunnel of the double tunnel is equal to the central drainage ditch outlet (202) of the right tunnel of the double tunnel; the cross-sectional area of ​​the drainage communication channel (503) outside the central drainage ditch of the double tunnel is equal to the sum of the cross-sectional areas of the drainage channel (501) outside the central drainage ditch of the left tunnel of the double tunnel and the drainage channel (502) outside the central drainage ditch of the right tunnel of the double tunnel; the cross-sectional area of ​​the slope drainage channel (602) of the double tunnel is equal to the cross-sectional area of ​​the drainage communication channel (503) outside the central drainage ditch of the double tunnel.

6. A comprehensive utilization system based on a water-rich tunnel, characterized in that: include: A tunnel (1), wherein a central drainage ditch outlet (2) is provided at a tunnel opening (3) of the tunnel (1); A hydroelectric power generation and hydrogen production and energy storage platform (10), wherein the hydroelectric power generation and hydrogen production and energy storage platform (10) is arranged outside the tunnel (1), a hydroelectric power generation room (7), a hydrogen production and energy storage device (8) and a hydrogen energy generation device (11) are arranged thereon, and the platform is connected to the road surface (4) outside the tunnel via a walkway (14); A drainage channel (5) outside the central drainage ditch hole, wherein the drainage channel (5) outside the central drainage ditch hole connects the central drainage ditch outlet (2) and the slope drainage channel (6), wherein the slope drainage channel (6) leads the drainage to the hydroelectric power house (7), wherein the hydroelectric power house (7) includes a hydroelectric generator and a hydroelectric transformer, wherein the hydroelectric generator converts the drainage into electrical energy and transmits the electrical energy to the hydroelectric transformer, wherein the hydroelectric transformer transmits the modulated electrical energy to the hydrogen production and energy storage device (8) and the weak current emergency power supply system in the tunnel (1); The hydrogen production and energy storage device (8) generates hydrogen through electrical energy and is connected to the hydrogen energy generation device (11) through a hydrogen transmission pipeline (13), and can transmit hydrogen to the outside through a hydrogen filling port (12). The hydrogen energy generation device (11) transmits the generated electricity to the high-voltage emergency power supply system in the tunnel (1).

7. A comprehensive utilization system based on a water-rich tunnel according to claim 6, characterized in that: The system also includes a switching device for switching the tunnel weak current emergency power supply and the strong current emergency power supply. When the state grid power supply circuit is normal, the switching device switches the tunnel weak current emergency power supply and the strong current emergency power supply to the state grid power supply circuit; When the national grid power supply circuit fails, the switching device switches the tunnel weak current emergency power supply to the hydropower transformer of the hydropower plant (7), and switches the tunnel strong current emergency power supply to the hydrogen energy transformer of the hydrogen energy power generation device (11).

8. The comprehensive utilization system based on the water-rich tunnel according to claim 6 is characterized in that: When the tunnel (1) is a single-hole tunnel, the central drainage ditch outlet (2) includes a single-hole tunnel central drainage ditch outlet (203), the central drainage ditch outer-hole drainage channel (5) includes a single-hole tunnel central drainage ditch outer-hole drainage channel (504) and a single-hole tunnel central drainage ditch outer-hole drainage communication channel (505), the single-hole tunnel central drainage ditch outer-hole drainage channel (504) respectively connects the single-hole tunnel central drainage ditch outlet (203) and the single-hole tunnel central drainage ditch outer-hole drainage communication channel (505), and the The slope drainage channel (6) comprises a single-hole tunnel slope drainage channel (602), and the single-hole tunnel slope drainage channel (602) is respectively connected to the single-hole tunnel central drainage ditch, the drainage connection channel outside the tunnel (505) and the hydropower plant (7), and the single-hole tunnel central drainage ditch outlet (203), the single-hole tunnel central drainage ditch drainage channel outside the tunnel (504), the single-hole tunnel central drainage ditch drainage connection channel outside the tunnel (505) and the single-hole tunnel slope drainage channel (602) have equal cross-sectional areas.

9. The comprehensive utilization system based on the water-rich tunnel according to claim 6 is characterized in that: When the tunnel (1) is a double-hole tunnel, the central drainage ditch outlet (2) includes the central drainage ditch outlet (201) of the left hole of the double-hole tunnel and the central drainage ditch outlet (202) of the right hole of the double-hole tunnel, and the central drainage ditch outer-hole drainage channel (5) includes the central drainage ditch outer-hole drainage channel (501) of the left hole of the double-hole tunnel, the central drainage ditch outer-hole drainage channel (502) of the right hole of the double-hole tunnel and the central drainage ditch outer-hole drainage communication channel (503) of the double-hole tunnel, the central drainage ditch outer-hole drainage channel (501) of the left hole of the double-hole tunnel is respectively connected to the central drainage ditch outlet (201) of the left hole of the double-hole tunnel and the central drainage ditch outer-hole drainage communication channel (503) of the double-hole tunnel, and the central drainage ditch outer-hole drainage channel (502) of the right hole of the double-hole tunnel is respectively connected to the central drainage ditch outlet (202) of the right hole of the double-hole tunnel and the central drainage ditch outer-hole drainage communication channel (503) of the double-hole tunnel; The slope drainage channel (6) comprises a double-hole tunnel slope drainage channel (601), and the double-hole tunnel slope drainage channel (601) is respectively connected to the double-hole tunnel central drainage ditch, the outer drainage communication channel (503) and the hydropower house (7).

10. A comprehensive utilization system based on a water-rich tunnel according to claim 9, characterized in that: The cross-sectional area of ​​the drainage channel (501) outside the central drainage ditch of the left tunnel of the double tunnel is equal to the cross-sectional area of ​​the central drainage ditch outlet (201) of the left tunnel of the double tunnel; the cross-sectional area of ​​the drainage channel (502) outside the central drainage ditch of the right tunnel of the double tunnel is equal to the central drainage ditch outlet (202) of the right tunnel of the double tunnel; the cross-sectional area of ​​the drainage communication channel (503) outside the central drainage ditch of the double tunnel is equal to the sum of the cross-sectional areas of the drainage channel (501) outside the central drainage ditch of the left tunnel of the double tunnel and the drainage channel (502) outside the central drainage ditch of the right tunnel of the double tunnel; the cross-sectional area of ​​the slope drainage channel (602) of the double tunnel is equal to the cross-sectional area of ​​the drainage communication channel (503) outside the central drainage ditch of the double tunnel.

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