Drainage system and control method

Abstract

The invention provides a drainage system and a control method.The drainage system is applied to a tunnel boring machine, a main machine shield tail area, an equipment bridge area, a trailer area and an assembly portal area are sequentially arranged behind the tunnel boring machine, the tunnel boring machine is connected with a water supply pipe and a water return pipe, a booster pump is arranged on the water supply pipe, and a relay pump is arranged on the water return pipe; the booster pump and the relay pump are both located in the trailer area, the drainage system comprises a first drainage pipe, one end of the first drainage pipe is located in the equipment bridge area and connected with a diaphragm pump set, the other end of the first drainage pipe is located in the assembly hole area, and the diaphragm pump set is provided with a first water suction opening; one end of the second drainage pipe is located in the main machine shield tail area and connected with a group of submersible pumps, the other end of the second drainage pipe is located in the trailer area and communicated with the water supply pipe, and the group of submersible pumps are provided with second water suction ports; the third water suction opening is located in the main machine shield tail area and communicated with the water return pipe. According to the drainage system and the control method, the structure is simple, the space utilization rate can be increased while the drainage amount is increased, cost is low, and safety is high.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel drainage, and in particular to a drainage system and a control method. Background Art

[0002] A pumped-storage power station uses electricity during low-load periods to pump water to the upper reservoir, and releases water to the lower reservoir for power generation during peak load periods. It can convert excess electricity during low-load periods of the power grid into high-value electricity during high-load periods. The construction of a pumped-storage power station usually requires the use of a tunnel boring machine. The tunnel boring machine operates continuously in parallel during the construction processes of excavation, support, and slag removal. It is a factory-based assembly line tunnel construction equipment that integrates mechanical, electrical, hydraulic, optical, and gas systems. It has the advantages of fast excavation speed, environmental protection, and high comprehensive benefits. It can realize the construction of deep-buried long tunnels in complex geographical features that are difficult to achieve with traditional drilling and blasting methods.

[0003] During the equipment excavation stage, the pumped storage power station mainly moves downhill. All the water in the tunnel will gather on the working face. If the water is too deep, it will affect the stability of the surrounding rock and reduce the safety of mechanical equipment and construction personnel. The water needs to be discharged in time, but the existing tunnel boring machine has limited drainage capacity. If drainage equipment is added to increase the drainage capacity on this basis, the additional pipelines will occupy a lot of space, which is not conducive to equipment operation and has high costs. Therefore, a simple and efficient drainage system is urgently needed. Summary of the invention

[0004] In view of this, the purpose of this application is to propose a drainage system and a control method to solve the related problems mentioned in the background technology.

[0005] In a first aspect of the present application, a drainage system is provided, which is applied to a tunnel boring machine, wherein a main engine shield tail area, an equipment bridge area, a trailer area and an assembly portal area are sequentially arranged at the rear of the tunnel boring machine, the tunnel boring machine is connected to a water supply pipe and a return pipe, a booster pump is arranged on the water supply pipe, a relay pump is arranged on the return pipe, and both the booster pump and the relay pump are located in the trailer area, and the drainage system comprises: a first drainage pipe, one end of which is located in the equipment bridge area and is connected to a diaphragm pump group, and the other end is located in the assembly portal area, and the diaphragm pump group is provided with a first water suction port; a second drainage pipe, one end of which is located in the main engine shield tail area and is connected to a submersible pump group, and the other end is located in the trailer area and is connected to the water supply pipe, and the submersible pump group is provided with a second water suction port; a third water suction port is located in the main engine shield tail area and is connected to the return pipe.

[0006] Furthermore, the drainage system also includes: a sewage tank, located in the trailer area and connected in parallel with the first drainage pipe.

[0007] Furthermore, a sewage inlet pipe and a sewage discharge pipe are connected between the sewage tank and the first drain pipe, and the sewage discharge pipe is connected to two parallel submersible pump groups and a sewage pump group, the two submersible pump groups are located in the sewage tank, and the sewage pump group is located outside the sewage tank.

[0008] Furthermore, one end of the second drainage pipe away from the submersible pump group is connected to the sewage drainage pipe.

[0009] Furthermore, the diaphragm pump group includes a first diaphragm pump and a second diaphragm pump in parallel, the maximum displacement of the first diaphragm pump is less than the maximum displacement of the second diaphragm pump, the maximum displacement of the second submersible pump group is equal to the maximum displacement of the first diaphragm pump, and the maximum displacement of the sewage pump group is equal to the maximum displacement of the second diaphragm pump.

[0010] Furthermore, the submersible pump group one includes two first submersible pumps with equal maximum displacement, and the submersible pump group two includes two second submersible pumps with equal maximum displacement.

[0011] Furthermore, a first valve is provided between the diaphragm pump group and the first water suction port, a second valve is provided on the first drainage pipe, and the second valve is located between the sewage inlet pipe and the sewage discharge pipe; a three-way valve is provided at the connection between the second drainage pipe and the water supply pipe; a third valve is provided at the third water suction port, a fourth valve is provided on the return pipe, and the fourth valve is located between the relay pump and the third valve; a fifth valve is provided between the submersible pump group and the second water suction port, a sixth valve and a seventh valve are provided on the second drainage pipe, the sixth valve is located between the submersible pump group and the three-way valve, and the seventh valve is located between the three-way valve and the sewage discharge pipe; an eighth valve is provided on the sewage inlet pipe, a ninth valve is provided on the sewage discharge pipe, a tenth valve is provided at the bottom of the sewage tank, and an eleventh valve is provided between the sewage tank and the sewage pump group.

[0012] The second aspect of the present application provides a drainage system control method, using the drainage system as described in the first aspect above, the drainage system control method includes: obtaining the amount of water gushing into the tunnel; when the amount of water gushing is less than or equal to a first preset value, opening the first water suction port; when the amount of water gushing is greater than the first preset value, opening the first water suction port, opening the second water suction port and connecting the water supply pipe and / or opening the third water suction port.

[0013] Furthermore, the drainage system control method also includes: when a power off signal is received, starting the generator of the tunnel boring machine, opening the second water suction port and connecting the first drainage pipe and / or opening the third water suction port, and closing the first water suction port.

[0014] Further, the opening of the first water suction port includes: opening the first water suction port, the diaphragm pump group and the second valve, and closing the eighth valve and the ninth valve; or, opening the first water suction port, the diaphragm pump group, the eighth valve and the ninth valve, opening the second submersible pump group and / or the sewage pump group, and closing the second valve; the opening of the second water suction port and connecting the water supply pipe includes: opening the second water suction port, the first submersible pump group, the sixth valve and the three-way valve, and closing the seventh valve; the opening of the second water suction port and connecting the first drainage pipe includes: opening the second water suction port, the first submersible pump group, the sixth valve, the seventh valve and the ninth valve, and closing the three-way valve; the opening of the third water suction port includes: opening the third water suction port, the third valve, the fourth valve and the relay pump.

[0015] From the above description, it can be seen that the drainage system and control method provided by the present application are applied to a tunnel boring machine. The rear of the tunnel boring machine is provided with a main shield tail area, an equipment bridge area, a trailer area and an assembly cave entrance area in sequence. The tunnel boring machine is connected with a water supply pipe and a return pipe to form an external circulation water circuit. A booster pump is provided on the water supply pipe, and a relay pump is provided on the return pipe. The booster pump and the relay pump are both located in the trailer area. The drainage system includes: a first drainage pipe, one end of which is located in the equipment bridge area and is connected to a diaphragm pump group, and the other end is located in the assembly cave entrance area. The diaphragm pump group is provided with a first water suction port. When the amount of water gushing is small, the first water suction port can be opened, and the gushing water can be discharged by using the first drainage pipe. to the cave entrance; the second drainage pipe, one end of which is located in the shield tail area of ​​the main engine and is connected to a submersible pump group, and the other end is located in the trailer area and is connected to the water supply pipe. The submersible pump group is provided with a second water inlet. By setting the second drainage pipe, when the water inflow is large, the second water inlet can be opened, and the water supply pipe can be used as a drainage pipeline to discharge the gushing water to the cave entrance, thereby reducing the space occupied by the pipeline and the cost; the third water inlet is located in the shield tail area of ​​the main engine and is connected to the return pipe. When the water inflow is large, the third water inlet can also be opened, and the return pipe can be used as a drainage pipeline to reduce the space occupied by the pipeline and the cost; the first drainage pipe, the water supply pipe and the return pipe cooperate to greatly increase the drainage volume and improve the space utilization rate. The drainage system and control method have a simple structure, can increase the drainage volume while improving the space utilization rate, reduce the cost, and ensure safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the structure of a drainage system in an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of a first control method for opening the first water suction port of the drainage system in an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of a second control method for opening the first water suction port of the drainage system in an embodiment of the present application;

[0020] Figure 4 This is a third control schematic diagram of opening the first water suction port of the drainage system in the embodiment of the present application;

[0021] Figure 5 This is a fourth control schematic diagram of opening the first water suction port of the drainage system in the embodiment of the present application;

[0022] Figure 6 This is a control schematic diagram of the drainage system in the embodiment of the present application opening the second water suction port and connecting the water supply pipe;

[0023] Figure 7 This is a control schematic diagram of the drainage system in the embodiment of the present application opening the second water suction port and connecting the first drainage pipe;

[0024] Figure 8 This is a control schematic diagram of opening the third water suction port of the drainage system in the embodiment of the present application;

[0025] Fig. 9 This is a structural schematic diagram of a drainage system control device in an embodiment of the present application;

[0026] Fig.10 This is a schematic diagram of the structure of an electronic device in an embodiment of the present application.

[0027] Figure markings: 1, water supply pipe; 1-1, booster pump; 1-2, three-way valve; 2, return pipe; 2-1, relay pump; 2-2, fourth valve; 3, first drain pipe; 3-1, first water suction port; 3-2, first diaphragm pump; 3-3, second diaphragm pump; 3-4, first valve; 3-5, second valve; 4, second drain pipe; 4-1, second water suction port; 4-2, first submersible pump; 4-3, fifth valve; 4-4, sixth valve; 4-5, seventh valve; 5, third water suction port; 5-1, third valve; 6, sewage tank; 6-1, sewage pump group; 6-2, second submersible pump; 6-3, tenth valve; 6-4, eleventh valve; 7, sewage inlet pipe; 7-1, eighth valve; 8, sewage discharge pipe; 8-1, ninth valve. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0029] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Pumped storage power stations use electricity during low load periods to pump water to the upper reservoir, and release water to the lower reservoir for power generation during peak load periods. They can convert excess electricity during low load periods into high-value electricity during high load periods, are suitable for frequency and phase modulation, can be used to stabilize the frequency and voltage of the power system, and are suitable for emergency standby. They can also improve the efficiency of thermal power plants and nuclear power plants in the power system.

[0031] A pumped-storage power station uses electricity during low-load periods to pump water to the upper reservoir, and releases water to the lower reservoir for power generation during peak load periods. It can convert excess electricity during low-load periods of the power grid into high-value electricity during high-load periods. The construction of a pumped-storage power station usually requires the use of a tunnel boring machine. The tunnel boring machine operates continuously in parallel during the construction processes of excavation, support, and slag removal. It is a factory-based assembly line tunnel construction equipment that integrates mechanical, electrical, hydraulic, optical, and gas systems. It has the advantages of fast excavation speed, environmental protection, and high comprehensive benefits. It can realize the construction of deep-buried long tunnels in complex geographical features that are difficult to achieve with traditional drilling and blasting methods.

[0032] During the equipment excavation stage, the pumped storage power station mainly moves downhill. All the water in the tunnel will gather on the working face. If the water is too deep, it will affect the stability of the surrounding rock and reduce the safety of mechanical equipment and construction personnel. The water needs to be discharged in time, but the existing tunnel boring machine has limited drainage capacity. If drainage equipment is added to increase the drainage capacity on this basis, the additional pipelines will occupy a lot of space, which is not conducive to equipment operation and has high costs. Therefore, a simple and efficient drainage system is urgently needed.

[0033] In the process of realizing the present application, it was found that the existing tunnel boring machines are usually equipped with diaphragm pumps and connected to the drainage pipeline at the entrance of the cave. However, the drainage capacity of the diaphragm pump and the drainage pipeline is limited. When the amount of water gushing out is large, the accumulated water cannot be discharged in time. Simply increasing the power or number of the drainage pump, or increasing the size or number of the drainage pipelines to the entrance of the cave, although the drainage capacity can be increased, the pipeline occupies a large space and the cost is high. It is possible to consider using the existing pipelines for drainage to improve space utilization. For example, the tunnel boring machine itself will be connected to the internal circulation water circuit and the external circulation water circuit. The internal circulation water circuit mainly dissipates heat for each system, and the external circulation water circuit mainly dissipates heat for the internal circulation water circuit and the cutter head. Therefore, the water supply pipe and drainage pipe of the external circulation water circuit can be used to discharge the gushing water.

[0034] Below, through specific embodiments and in combination with the attached Figures 1 to 10 To describe the technical solution of this application in detail.

[0035] Some embodiments of the present application provide a drainage system, such as Figure 1 As shown, it is applied to a tunnel boring machine, and the rear of the tunnel boring machine is provided with a main engine shield tail area A, an equipment bridge area B, a trailer area C and an assembly cave entrance area D in sequence. The tunnel boring machine is connected with a water supply pipe 1 and a return pipe 2. The water supply pipe 1 is provided with a booster pump 1-1, and the return pipe 2 is provided with a relay pump 2-1. The booster pump 1-1 and the relay pump 2-1 are both located in the trailer area C. The drainage system comprises: a first drainage pipe 3, one end of which is located in the equipment bridge area B and is connected to a diaphragm pump group a, and the other end is located in the assembly cave entrance area D, and the diaphragm pump group a is provided with a first water suction port 3-1; a second drainage pipe 4, one end of which is located in the main engine shield tail area A and is connected to a submersible pump group b, and the other end is located in the trailer area C and is connected to the water supply pipe 1, and the submersible pump group b is provided with a second water suction port 4-1; a third water suction port 5 is located in the main engine shield tail area A and is connected to the return pipe 2.

[0036] like Figure 1 As shown, the rear of the tunnel boring machine is provided with a main shield tail area A, an equipment bridge area B, a trailer area C and an assembly portal area D in sequence. The tunnel boring machine is connected with a water supply pipe 1 and a water return pipe 2 to form an external circulation water circuit. A booster pump 1-1 is provided on the water supply pipe 1, and a relay pump 2-1 is provided on the water return pipe 2. Both the booster pump 1-1 and the relay pump 2-1 are located in the trailer area C to provide power for the water circulation.

[0037] The drainage system includes a first drainage pipe 3 , a second drainage pipe 4 and a third water suction port 5 .

[0038] One end of the first drainage pipe 3 is located in the equipment bridge area B and is connected to the diaphragm pump group a, and the other end is located in the assembly hole area D. The diaphragm pump group a is provided with a first water suction port 3-1. When the amount of water gushing is small, the first water suction port 3-1 and the diaphragm pump group a can be opened, and the first drainage pipe 3 can be used to discharge the gushing water to the hole.

[0039] One end of the second drainage pipe 4 is located in the main engine shield tail area A and is connected to a submersible pump group b. The other end is located in the trailer area C and is connected to the water supply pipe 1. The submersible pump group b is provided with a second water suction port 4-1. When the amount of water gushing is large, the second water suction port 4-1 and the submersible pump group b can be opened, and the water supply pipe 1 can be used as a drainage pipeline to discharge the gushing water to the hole, thereby reducing the space and cost occupied by the pipeline.

[0040] The third water suction port 5 is located in the tail area A of the main engine shield and is connected to the return pipe 2. When the water inflow is large, the third water suction port 5 and the relay pump 2-1 can also be opened to use the return pipe 2 as a drainage pipeline to reduce the space and cost occupied by the pipeline.

[0041] When the amount of water gushing out is large, the first water suction port 3-1, the second water suction port 4-1 and the third water suction port 5 can be opened at the same time, and three-way drainage can be carried out through the cooperation of the first drainage pipe 3, the water supply pipe 1 and the return pipe 2, which can greatly increase the drainage volume and improve the space utilization rate.

[0042] The drainage system has a simple structure and can increase the drainage volume while improving space utilization, reducing costs and ensuring safety.

[0043] In some embodiments, Figure 1 As shown, the drainage system further includes: a sewage tank 6 , located in the trailer area C, and connected in parallel with the first drainage pipe 3 .

[0044] like Figure 1 As shown, the first drainage pipe 3 is also connected in parallel with a sewage tank 6, which can filter and precipitate large-diameter gravel and sediment in the gushing water, reduce the abrasion of the pipeline and the wear of the equipment, and can temporarily store the gushing water.

[0045] In some embodiments, Figure 1 As shown, a sewage inlet pipe 7 and a sewage discharge pipe 8 are connected between the sewage tank 6 and the first drain pipe 3. The sewage discharge pipe 8 is connected to a submersible pump group c and a sewage pump group 6-1 in parallel. The submersible pump group c is located in the sewage tank 6, and the sewage pump group 6-1 is located outside the sewage tank 6.

[0046] like Figure 1 As shown, the sewage tank 6 is connected to the first drainage pipe 3 through a sewage inlet pipe 7 and a sewage discharge pipe 8. The sewage discharge pipe 8 is connected with two parallel submersible pump groups c and a sewage pump group 6-1 for discharging the gushing water entering the sewage tank 6.

[0047] In some embodiments, Figure 1 As shown, one end of the second drainage pipe 4 away from the submersible pump group b is connected to the sewage drainage pipe 8.

[0048] like Figure 1 As shown, the second drainage pipe 4 is connected with the sewage drainage pipe 8, so that the water gushing from the second water suction port 4-1 can flow through the sewage drainage pipe 8 and then flow out through the first drainage pipe 3, increasing the use demand of the drainage system in different scenarios. For example, when the power is off in the cave, the diaphragm pump group a cannot be used due to the limitation of the air compressor. The generator can be used to start the submersible pump group b to discharge the gushing water through the second water suction port 4-1 and the first drainage pipe 3, thereby improving the utilization rate of the pipeline. At this time, the water supply pipe 1 is not used for drainage, which can avoid polluting the water supply pipe 1 and affecting the circulation.

[0049] In some embodiments, Figure 1 As shown, the diaphragm pump group a includes a first diaphragm pump 3-2 and a second diaphragm pump 3-3 connected in parallel, the maximum discharge capacity of the first diaphragm pump 3-2 is less than the maximum discharge capacity of the second diaphragm pump 3-3, the maximum discharge capacity of the submersible pump group c is equal to the maximum discharge capacity of the first diaphragm pump 3-2, and the maximum discharge capacity of the sewage pump group 6-1 is equal to the maximum discharge capacity of the second diaphragm pump 3-3.

[0050] The first diaphragm pump 3-2 and the second diaphragm pump 3-3 can be placed in sequence in the equipment bridge area B. The maximum displacement of the first diaphragm pump 3-2 is 30m 3 / h, the maximum displacement of the second diaphragm pump 3-3 is 40m 3 / h. To match the flow rate of diaphragm pump group a, the maximum discharge capacity of sewage pump group 6-1 is 40m 3 / h, power is 11kW, the maximum displacement of submersible pump group c is 30m 3 / h.

[0051] In some embodiments, Figure 1 As shown, the submersible pump group b includes two first submersible pumps 4-2 with equal maximum displacement, and the submersible pump group c includes two second submersible pumps 6-2 with equal maximum displacement.

[0052] The maximum displacement of the first submersible pump 4-2 and the second submersible pump 6-2 can be 30m 3 / h, the power is 18.5kW, and the 3- and 4-inch pipes of the first drainage pipe can meet the working requirements; the first submersible pump 4-2 is installed in the shield tail area A of the main engine, and the second submersible pump 6-2 is installed in the sewage tank 6. There are two of them, which can be set in parallel with one backup; the maximum displacement of the relay pump 2-1 is 65m 3 / h, the power is 15kW, and the 2 or 3-inch return pipe can meet the working requirements.

[0053] In some embodiments, Figure 1 As shown, a first valve 3-4 is provided between the diaphragm pump group a and the first water suction port 3-1, a second valve 3-5 is provided on the first drainage pipe 3, and the second valve 3-5 is located between the sewage inlet pipe 7 and the sewage discharge pipe 8; a three-way valve 1-2 is provided at the connection between the second drainage pipe 4 and the water supply pipe 1; a third valve 5-1 is provided at the third water suction port 5, a fourth valve 2-2 is provided on the return pipe 2, and the fourth valve 2-2 is located between the relay pump 2-1 and the third valve 5-1; the submersible pump group b and the first A fifth valve 4-3 is provided between the two water suction ports 4-1, a sixth valve 4-4 and a seventh valve 4-5 are provided on the second drainage pipe 4, the sixth valve 4-4 is located between the submersible pump group b and the three-way valve 1-2, and the seventh valve 4-5 is located between the three-way valve 1-2 and the sewage discharge pipe 8; an eighth valve 7-1 is provided on the sewage inlet pipe 7, a ninth valve 8-1 is provided on the sewage discharge pipe 8, a tenth valve 6-3 is provided at the bottom of the sewage tank 6, and an eleventh valve 6-4 is provided between the sewage tank 6 and the sewage pump group 6-1.

[0054] like Figure 1 As shown, the first valve 3-4 is used to control the first water suction port 3-1 to absorb water; the second valve 3-5 is used to control the gushing water to flow to the sewage tank 6; the three-way valve 1-2 is used to connect the second drainage pipe 4 and the water supply pipe 1; the third valve 5-1 is used to control the third water suction port 5 to absorb water, and a valve can also be set between the third valve 5-1 and the tunnel boring machine; the fourth valve 2-2 is used to control the external circulation return water; the fifth valve 4-3 is used to control the second water suction port 4-1 to absorb water; the sixth valve 4-4 is used to control the second drainage pipe 4; the seventh valve 4-5 is used to connect the second drainage pipe 4 and the sewage discharge pipe 8; the eighth valve 7-1 is used to control the sewage inlet pipe 7; the ninth valve 8-1 is used to control the sewage discharge pipe 8; the tenth valve 6-3 is used to discharge impurities from the sewage tank 6; the eleventh valve 6-4 is used to connect the sewage tank 6 and the sewage pump group 6-1; a valve can also be set at the second submersible pump group c.

[0055] The description of the present application is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present application to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present application, and to enable those of ordinary skill in the art to understand the present application and thus design various embodiments with various modifications suitable for specific purposes.

[0056] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may also be combined, and there are many other variations of different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0057] Based on the same inventive concept, the present application also provides a drainage system control method, using the drainage system described in any of the above embodiments, the drainage system control method includes:

[0058] S1. Obtain the water inflow in the tunnel.

[0059] The liquid level sensor can monitor the water inrush in the tunnel, and the host of the tunnel boring machine can obtain the amount of water inrush in the tunnel.

[0060] S2. When the water inflow is less than or equal to a first preset value, the first water suction port 3-1 is opened.

[0061] The first preset value is, for example, 65 m 3 / h, when the water inflow is small, the first water inlet 3-1 and the diaphragm pump group a can be opened to flow through the first drainage pipe 3 for drainage.

[0062] When the water inflow is less than the second preset value, the second preset value is, for example, 30m 3 / h, only the first diaphragm pump 3-2 can be turned on, and the maximum displacement is 30m 3 / h; when the water inflow is greater than or equal to the second preset value and less than or equal to the first preset value, the first diaphragm pump 3-2 and the second diaphragm pump 3-3 can be started at the same time, and the maximum water discharge is 70m 3 / h.

[0063] In some embodiments, opening the first water suction port 3-1 includes:

[0064] S201, open the first water suction port 3-1, the diaphragm pump group a and the second valve 3-5, and close the eighth valve 7-1 and the ninth valve 8-1.

[0065] like Figure 2 As shown, the gushing water flows toward the cave entrance through the first water suction port 3-1, the diaphragm pump group a and the first drainage pipe 3.

[0066] In some embodiments, opening the first water suction port 3-1 includes:

[0067] S202, open the first water suction port 3-1, the diaphragm pump group a, the eighth valve 7-1 and the ninth valve 8-1, start the second submersible pump group c and / or the sewage pump group 6-1, and close the second valve 3-5.

[0068] like Figure 3 As shown, when the first water suction port 3-1 and the diaphragm pump group a are opened, the line of the sewage tank 6 can also be opened to sediment and filter the gushing water, and the gushing water flows to the cave entrance through the first water suction port 3-1, the diaphragm pump group a, the sewage inlet pipe 7, the sewage tank 6, the second submersible pump group c, the sewage pump group 6-1, the sewage discharge pipe 8 and the first drainage pipe 3.

[0069] like Figure 4 As shown, when the diaphragm pump group a only starts the first diaphragm pump 3-2, only the second submersible pump 6-2 can be started; Figure 5 As shown, when only the second diaphragm pump 3-3 of the diaphragm pump group a is turned on, only the sewage pump group 6-1 can be turned on.

[0070] S3. When the water inflow is greater than the first preset value, the first water suction port 3-1 is opened, the second water suction port 4-1 is opened and connected to the water supply pipe 1 and / or the third water suction port 5 is opened.

[0071] When the amount of water gushing out is large, the second water suction port 4-1 may be opened to allow the water to flow through the water supply pipe 1 for drainage, and / or the third water suction port 5 may be opened to allow the water to flow through the water return pipe 2 for drainage.

[0072] When the water inflow is greater than the first preset value and less than the third preset value, the third preset value is, for example, 100m 3 / h, the first water inlet 3-1 and the second water inlet 4-1 can be opened at the same time, and the maximum discharge capacity is 100m 3 / h; when the water inflow is greater than or equal to the third preset value and less than the fourth preset value, the fourth preset value is, for example, 135m 3 / h. The first water inlet 3-1 and the third water inlet 5 can be opened at the same time, and the maximum discharge capacity is 135m 3 / h; when the water inflow is greater than or equal to the fourth preset value, the first water inlet 3-1, the second water inlet 4-1 and the third water inlet 5 can be opened at the same time, and the maximum water discharge is 165m 3 / h.

[0073] In some embodiments, opening the second water suction port 4-1 and connecting the water supply pipe 1 includes:

[0074] S301, open the second water suction port 4-1, submersible pump group b, the sixth valve 4-4 and the three-way valve 1-2, and close the seventh valve 4-5.

[0075] like Figure 6As shown, the gushing water flows toward the cave entrance through the second water suction port 4-1, a group of submersible pumps b, the second drainage pipe 4 and the water supply pipe 1.

[0076] In some embodiments, opening the third water suction port 5 comprises:

[0077] S302, open the third water suction port 5, the third valve 5-1, the fourth valve 2-2 and the relay pump 2-1.

[0078] like Figure 8 As shown, the gushing water flows toward the cave entrance through the third water suction port 5, the relay pump 2-1 and the return pipe 2.

[0079] In some embodiments, the drainage system control method further includes:

[0080] S4. When a power-off signal is received, the generator of the tunnel boring machine is started, the second water suction port 4-1 is opened and connected to the first drainage pipe 3 and / or the third water suction port 5 is opened, and the first water suction port 3-1 is closed.

[0081] The tunnel boring machine can be equipped with a 120kVA generator to meet the power needs of drainage during power outages, which can meet the power needs of 95m 3 / h drainage capacity, is limited by the air compressor during power outages and diaphragm pump group a cannot be used.

[0082] When the water inflow is less than the second preset value, only the second water inlet 4-1 can be opened, and the maximum water discharge is 30m 3 / h; when the water inflow is greater than or equal to the second preset value and less than the first preset value, only the third water inlet 5 can be opened, and the maximum water discharge is 65m 3 / h; when the water inflow is greater than or equal to the first preset value, the second water inlet 4-1 and the third water inlet 5 can be opened at the same time, and the maximum water discharge is 95m 3 / h.

[0083] In some embodiments, the opening of the second water suction port 4-1 and connecting the first drain pipe 3 includes:

[0084] S401, open the second water suction port 4-1, the submersible pump group b, the sixth valve 4-4, the seventh valve 4-5 and the ninth valve 8-1, and close the three-way valve 1-2.

[0085] like Figure 7 As shown, in the case of power failure, the gushing water flows to the cave entrance through the second water suction port 4-1, a group of submersible pumps b, the second drainage pipe 4, the sewage drainage pipe 8 and the first drainage pipe 3. At this time, the water supply pipe 1 is not used for drainage to avoid contaminating the water supply pipe 1 and affecting the circulation.

[0086] It should be noted that the method of the embodiment of the present application can be performed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present application, and the multiple devices will interact with each other to complete the described method.

[0087] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0088] In some embodiments of the present application, a drainage system control device is provided, referring to Fig. 9 , including: an acquisition module 91, configured to obtain the water inflow in the tunnel; a control module 92, configured to open the first water suction port when the water inflow is less than or equal to a first preset value; when the water inflow is greater than the first preset value, open the first water suction port, open the second water suction port and connect the water supply pipe and / or open the third water suction port.

[0089] The device of the above embodiment is used to implement the corresponding drainage system control method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0090] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the drainage system control method described in any of the above embodiments is implemented.

[0091] Fig.10 A more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment is shown, and the device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040 and a bus 1050. It is characterized in that the processor 1010, the memory 1020, the input / output interface 1030 and the communication interface 1040 realize communication connection with each other inside the device through the bus 1050.

[0092] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0093] The memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0094] The input / output interface 1030 is used to connect the input / output module to realize information input and output. The input / output module can be configured as a component in the device (not shown in the figure), or it can be externally connected to the device to provide corresponding functions. It is characterized in that the input device can include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device can include a display, a speaker, a vibrator, an indicator light, etc.

[0095] The communication interface 1040 is used to connect a communication module (not shown) to realize communication interaction between the device and other devices. The communication module can realize communication through wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0096] The bus 1050 includes a path that transmits information between the various components of the device (eg, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0097] It should be noted that, although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, it can be understood by those skilled in the art that the above device may also only include the components necessary for implementing the embodiments of the present specification, and does not necessarily include all the components shown in the figure.

[0098] The electronic device of the above embodiment is used to implement the corresponding drainage system control method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0099] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the drainage system control method described in any of the above embodiments.

[0100] The non-transitory computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of storage media for computers include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0101] The computer instructions stored in the storage medium of the above embodiments are used to enable the computer to execute the drainage system control method described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0102] Based on the same concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a computer program product, including computer program instructions. When the computer program instructions are run on a computer, the computer executes the drainage system control method as described in any of the above embodiments, which has the beneficial effects of the corresponding method embodiments and will not be repeated here.

[0103] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0104] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand, the device can be shown in the form of a block diagram, so as to avoid making the embodiments of the present application difficult to understand, and this also takes into account the following fact, that is, the details of the implementation method of these block diagram devices are highly dependent on the platform to be implemented in the embodiments of the present application (that is, these details should be fully within the scope of understanding of those skilled in the art). In the case of elaborating specific details to describe the exemplary embodiments of the present application, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0105] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0106] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A drainage system, characterized in that: Applied to a tunnel boring machine, the rear of the tunnel boring machine is provided with a main shield tail area, an equipment bridge area, a trailer area and an assembly portal area in sequence, the tunnel boring machine is connected with a water supply pipe and a water return pipe, a booster pump is provided on the water supply pipe, a relay pump is provided on the water return pipe, the booster pump and the relay pump are both located in the trailer area, and the drainage system includes: A first drainage pipe, one end of which is located in the equipment bridge area and is connected to a diaphragm pump group, and the other end of which is located in the assembly hole area, and the diaphragm pump group is provided with a first water suction port; A second drainage pipe, one end of which is located in the shield tail area of ​​the main engine and is connected to a submersible pump group, and the other end of which is located in the trailer area and is connected to the water supply pipe, and the submersible pump group is provided with a second water suction port; The third water suction port is located in the tail area of ​​the main engine shield and is connected to the return water pipe.

2. The drainage system according to claim 1, characterized in that: Also includes: A sewage tank is located in the trailer area and is connected in parallel with the first drainage pipe.

3. The drainage system according to claim 2, characterized in that: A sewage inlet pipe and a sewage discharge pipe are connected between the sewage tank and the first drain pipe. The sewage discharge pipe is connected to two parallel submersible pump groups and a sewage pump group. The two submersible pump groups are located in the sewage tank, and the sewage pump group is located outside the sewage tank.

4. The drainage system according to claim 3, characterized in that: One end of the second drainage pipe away from the submersible pump group is communicated with the sewage drainage pipe.

5. The drainage system according to claim 4, characterized in that: The diaphragm pump group includes a first diaphragm pump and a second diaphragm pump connected in parallel, the maximum displacement of the first diaphragm pump is less than the maximum displacement of the second diaphragm pump, the maximum displacement of the second submersible pump group is equal to the maximum displacement of the first diaphragm pump, and the maximum displacement of the sewage pump group is equal to the maximum displacement of the second diaphragm pump.

6. The drainage system according to claim 5, characterized in that: The submersible pump group one includes two first submersible pumps with equal maximum displacement, and the submersible pump group two includes two second submersible pumps with equal maximum displacement.

7. The drainage system according to claim 6, characterized in that: A first valve is provided between the diaphragm pump group and the first water suction port, a second valve is provided on the first drainage pipe, and the second valve is located between the sewage inlet pipe and the sewage discharge pipe; a three-way valve is provided at the connection between the second drainage pipe and the water supply pipe; a third valve is provided at the third water suction port, a fourth valve is provided on the return pipe, and the fourth valve is located between the relay pump and the third valve; a fifth valve is provided between the submersible pump group and the second water suction port, a sixth valve and a seventh valve are provided on the second drainage pipe, the sixth valve is located between the submersible pump group and the three-way valve, and the seventh valve is located between the three-way valve and the sewage discharge pipe; an eighth valve is provided on the sewage inlet pipe, a ninth valve is provided on the sewage discharge pipe, a tenth valve is provided at the bottom of the sewage tank, and an eleventh valve is provided between the sewage tank and the sewage pump group.

8. A drainage system control method, characterized in that: Using the drainage system as described in any one of claims 1 to 7, the drainage system control method comprises: Obtain the water inflow in the tunnel; When the water inflow is less than or equal to a first preset value, the first water inlet is opened; When the water inflow is greater than the first preset value, the first water suction port is opened, the second water suction port is opened and connected to the water supply pipe, and / or the third water suction port is opened.

9. The drainage system control method according to claim 8, characterized in that: Also includes: When a power-off signal is received, the generator of the tunnel boring machine is started, the second water suction port is opened and connected to the first drainage pipe and / or the third water suction port is opened, and the first water suction port is closed.

10. The drainage system control method according to claim 9, characterized in that: The opening of the first water inlet includes: opening the first water inlet, the diaphragm pump group and the second valve, and closing the eighth valve and the ninth valve; or opening the first water inlet, the diaphragm pump group, the eighth valve and the ninth valve, opening the second submersible pump group and / or the sewage pump group, and closing the second valve; The opening of the second water suction port and connecting the water supply pipe comprises: opening the second water suction port, a submersible pump group, a sixth valve and a three-way valve, and closing the seventh valve; The opening of the second water suction port and connecting the first drainage pipe comprises: opening the second water suction port, the submersible pump group, the sixth valve, the seventh valve and the ninth valve, and closing the three-way valve; The opening of the third water suction port includes: opening the third water suction port, the third valve, the fourth valve and the relay pump.

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