Deep ground engineering gravity flow collection water taking and supplying system

Abstract

The utility model discloses a deep ground engineering gravity flow collection water taking and supplying system which comprises a water guiding and draining tunnel used for collecting natural seepage water in an underground mountain, the water guiding and draining tunnel is connected with a water guiding canal, and a water absorption reservoir is arranged on the downstream side of the water guiding canal. The system further comprises a water supply pipe network, the water supply pipe network comprises a water taking pump, the input end of the water taking pump is connected into the water absorption reservoir, the output end of the water taking pump is connected with a water supply main pipe, and the downstream side of the water supply main pipe is connected with the water consumption points through a plurality of water consumption point branch pipes. According to the scheme, the water source flow of the whole water taking and supplying system is that natural seepage water in an underground mountain converges to the water guiding and draining tunnel, then automatically flows and converges to the water taking and storing pool through the water guiding canal, and finally is conveyed to a water using point through the water taking pump set and the water supplying pipe network, and the problem that water collection and water conveying are difficult under the condition that the underground engineering burial depth is large is solved; and reliable and stable water source conditions can be provided for deep ground engineering such as underground laboratories.

Description

Technical Field

[0001] The utility model belongs to the technical field of deep underground engineering water supply, and specifically relates to a deep underground engineering gravity collection water supply system. Background Art

[0002] The water source required for conventional ground projects generally comes from surface water or municipal water supply, which is transported to the project water use points through water supply pumps and pipelines installed at the water source, or is connected from the municipal pipeline network through pipelines.

[0003] For underground facilities, underground laboratories or other underground projects buried more than a kilometer deep, the required water is difficult to provide through surface water or municipal water supply systems.

[0004] Deep underground projects, such as underground laboratories, have cosmic ray radiation levels that are only one billionth of those on the surface, making them an excellent place to conduct cutting-edge scientific research such as dark matter detection. Providing them with the required stable and reliable water source is a prerequisite for ensuring the normal operation of underground laboratories. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a gravity-collecting water supply system for deep underground engineering, solve the problem that it is difficult to use conventional water sources for water supply in deep underground engineering, and provide underground facilities with a water supply system that is adapted to local conditions, simple and reliable, automatically adjustable, clean and stable.

[0006] According to the technical scheme of the utility model, the utility model provides a deep-ground engineering gravity collection and supply system, including a diversion and drainage tunnel for collecting natural infiltration water inside an underground mountain, the diversion and drainage tunnel is connected to a diversion channel, and a water suction reservoir is arranged on the downstream side of the diversion channel; it also includes a water supply network, the water supply network includes a water intake pump, the input end of the water intake pump is connected to the water suction reservoir, the output end of the water intake pump is connected to a water supply mother pipe, and the downstream side of the water supply mother pipe is connected to a water use point through a plurality of water use point branches.

[0007] Furthermore, the water diversion channel is led out from one side of the water diversion and drainage tunnel, and the bottom of the water diversion channel is higher than the bottom of the water diversion and drainage tunnel.

[0008] Furthermore, a water retaining gate for adjusting the water level is provided on the downstream side of the connection between the diversion and drainage tunnel and the water diversion channel.

[0009] Furthermore, a mounting groove is provided in the water diversion channel near the water absorption reservoir, a grille or a gate is installed and connected to the mounting groove, and a flat filter is also provided on the downstream side of the mounting groove.

[0010] Furthermore, a water absorption reservoir is connected to more than two water intake pumps, and one of them is a standby water intake pump; a pump control valve is provided at the output end of each water intake pump.

[0011] Furthermore, a cyclone sand removal filter is provided in the water supply main pipe, and the cyclone sand removal filter is located on the upstream side of the water point branch pipe.

[0012] Furthermore, a pre-filtration regulating valve is provided on the upstream side of the cyclone sand removal filter, and a post-filtration regulating valve is provided on the downstream side of the cyclone sand removal filter.

[0013] Furthermore, a branch pipe regulating valve is provided on each water point branch pipe.

[0014] Furthermore, the water absorption reservoir includes a first water absorption reservoir and a second water absorption reservoir which are arranged in parallel, and the first water absorption reservoir and the second water absorption reservoir are independently separated to form two independent water supply systems.

[0015] Furthermore, the water diversion channel is connected to the first water suction reservoir and the second water suction reservoir respectively, the water intake pump for the first water suction reservoir and the water intake pump for the second water suction reservoir are independent and are respectively connected to two water supply main pipes, a connecting pipe is connected between the two water supply main pipes, and a connecting regulating valve is provided on the connecting pipe.

[0016] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0017] 1. In the deep underground engineering gravity collection and supply system of the utility model, the water source flow of the entire water supply system is that the natural infiltration water inside the underground mountain converges to the drainage tunnel, and then is gravity-collected by the water diversion channel to the water intake reservoir, and finally is transported to the water use point through the water supply network by the water intake pump group, which solves the problem of water collection and water transportation difficulties when the underground engineering is buried deep, and can provide reliable and stable water source conditions for deep underground projects such as underground laboratories.

[0018] 2. In terms of water supply, the deep underground engineering gravity collection and supply system of the utility model collects groundwater into the water absorption reservoir through the diversion tunnel and the water diversion channel, and does not directly use the water in the water diversion tunnel of the water source; in terms of water intake, the water intake pump is not in the conventional water source diversion tunnel, but in the water absorption reservoir; and it has a multi-stage filtration process, which makes the water flow cleaner and avoids the situation where there are many impurities in the reservoir.

[0019] 3. The deep underground engineering gravity collection and supply system of the utility model adjusts the water storage level through the water retaining gate, fully considering the dry season situation and ensuring the smooth gravity flow of the water diversion channel.

[0020] 4. The deep underground engineering gravity collection and water supply system of the utility model preferably has two independently separated water absorption reservoirs to form two independent water supply systems, thereby improving the reliability and stability of the water supply system; and preferably adopts variable frequency control to adapt to water demand of different flow rates.

[0021] 5. The deep underground engineering gravity collection and supply system of the utility model is preferably equipped with multiple water pumps and the settings of pipelines, valves, etc. are improved so that the system can meet various working conditions and maintenance needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the system structure according to an embodiment of the utility model.

[0023] Description of reference numerals in the accompanying drawings:

[0024] 1. Mountain diversion and drainage tunnel; 2. Water diversion channel; 3. Water retaining gate; 4. Grille; 5. Flat filter; 6. First water suction reservoir; 7. Second water suction reservoir; 8. Water intake pump; 9. Cyclone sand removal filter; 10. Water supply pipeline; 11. Pump control valve; 12. Connecting regulating valve; 13. Water use point; 14. Pre-filtration regulating valve; 15. Post-filtration regulating valve; 16. Branch pipe regulating valve. DETAILED DESCRIPTION

[0025] The utility model provides a deep underground engineering gravity collection water supply system, which solves the problem that it is difficult to use conventional water sources for water supply in deep underground engineering, and provides underground facilities with a water supply system that is adapted to local conditions, simple and reliable, automatically adjustable, clean and stable.

[0026] See also Figure 1 , a deep-ground engineering gravity-gathering water supply system according to one embodiment of the utility model includes a drainage tunnel 1 for collecting natural seepage water inside an underground mountain, a water diversion channel 2 is connected to the drainage tunnel 1, and a water suction reservoir is arranged on the downstream side of the water diversion channel 2. It also includes a water supply network, which includes a water intake pump 8, the input end of the water intake pump 8 is connected to the water suction reservoir, for example, the water intake pump 8 is located in the water suction reservoir, the output end of the water intake pump 8 is connected to the water supply main pipe 10, and the downstream side of the water supply main pipe 10 is connected to a plurality of water use points 13 through a plurality of water use point branches. The water source flow of the entire water supply system of this scheme is that the natural seepage water inside the underground mountain converges to the drainage tunnel 1, and then is gravity-gathered to the water suction reservoir by the water diversion channel 2, and finally is transported to each water use point 13 through the water intake pump 8 (pump group) through the water supply network.

[0027] More specifically, the water diversion channel 2 is led out from one side of the water diversion and drainage tunnel 1, and the bottom of the water diversion channel 2 is slightly higher than the bottom of the water diversion and drainage tunnel 1, that is, at the connection between the water diversion channel 2 and the water diversion and drainage tunnel 1, a step is formed between the inner wall of the water diversion channel 2 and the inner wall of the water diversion and drainage tunnel 1, which can preliminarily intercept sand and gravel in the water flow, solve the problem of high impurities in the water flow in the water diversion and drainage tunnel 1, and lay the foundation for the formation of a clean water source in the water absorption reservoir.

[0028] In a preferred embodiment, a water retaining gate 3 (or water blocking gate) for adjusting the water level is provided at a certain distance on the downstream side of the connection between the diversion channel 2 and the diversion tunnel 1. The water retaining gate 3 mainly includes, for example, a concrete dam body and a gate plate cast on site and other mechanical structures. When, for example, the amount of water infiltrated from the mountain is small during the dry season and the water level in the diversion channel 1 is low, the water storage level can be adjusted by reducing the opening of the water retaining gate 3 or closing it. Under the condition of the same amount of water, the water level of the diversion channel 1 can be increased to meet the requirement of stable gravity flow of the diversion channel and ensure the amount of water flowing into the diversion channel 2. The water retaining gate 3 is further preferably automatically controlled. For example, a device for monitoring the water level is provided in the diversion channel 1 and is linked to the water retaining gate 3 for control. The system can automatically adjust the opening of the water retaining gate 3 according to the water level, thereby further realizing the self-regulation of the system and ensuring a stable gravity flow collection effect.

[0029] An installation groove is provided in the water diversion channel 2 near the water absorption reservoir, and a grille 4 or a gate is installed and connected to the installation groove, and a flat filter 5 is also provided on the downstream side of the installation groove. Under normal working conditions, before the water diversion channel 2 is connected to the water absorption reservoir, a grille 4 and a flat filter 5 are provided in each water diversion channel 2. The grille 4 is used to intercept large pieces of gravel or debris that may exist in the water flow, and the flat filter 5 is arranged behind the grille 4 to intercept medium-sized gravel or debris in the water flow. The grille 4 and the gate are arranged in the same groove to meet the functional requirements of different states of the system. When the system is overhauled, the grille 4 can be replaced by a gate to cut off the water flow. It can be understood that the gate can also be separately arranged on the upstream side of the grille 4 to facilitate maintenance.

[0030] Preferably, one water intake reservoir is connected to more than two water intake pumps 8, and one of them is a standby water intake pump; for example, the water intake pumps used for one water intake reservoir are grouped together, each group of water intake pumps has three pumps, and the number of water intake pumps is based on the maximum water demand and the requirements of different working conditions. The output end of each water intake pump 8 is provided with a pump control valve 11, such as an automatic control valve, for adjusting the water supply and pressure. The water intake pump 8 preferably adopts frequency conversion control to adapt to water demand of different flow rates.

[0031] A cyclone sand removal filter 9 is provided in the water supply main pipe 10. The cyclone sand removal filter 9 is located after the water intake pump group of each water supply main pipe and before it is delivered to the water point, for example, located on the upstream side of the water point branch pipe, so as to further remove fine impurities in the water. A pre-filtration regulating valve 14 is provided on the upstream side of the cyclone sand removal filter 9, and a post-filtration regulating valve 15 is provided on the downstream side of the cyclone sand removal filter 9, such as an electric butterfly valve, which is used for repairing the cyclone sand removal filter or pipeline. Furthermore, a branch pipe regulating valve 16 is provided on each water point branch pipe, such as an electric butterfly valve, which is used to adjust the water demand of the water point.

[0032] After being filtered, the water flows by gravity from the water diversion channel 2 to the water absorption reservoir. The capacity and depth of the water absorption reservoir are based on the principle of meeting the water supply demand and the water absorption requirements of the water intake pump. Preferably, the water absorption reservoir includes a first water absorption reservoir 6 and a second water absorption reservoir 7 arranged in parallel (or parallel), and the first water absorption reservoir 6 and the second water absorption reservoir 7 are independently separated to form two independent water supply systems. Specifically, the water diversion channel 2 is connected to the first water absorption reservoir 6 and the second water absorption reservoir 7, respectively, and the water intake pump 8 (group) for the first water absorption reservoir 6 is independent of the water intake pump 8 (group) for the second water absorption reservoir 7 and is respectively connected to two water supply mother pipes 10. A connecting pipe is connected between the two water supply mother pipes 10, and the connecting pipe is, for example, located between the two groups of water intake pumps. A connecting regulating valve 12 is provided on the connecting pipe, such as an electric butterfly valve. In this solution, the downstream end of the water diversion channel 2 is divided into two routes, which are connected to two independent water absorption reservoirs to form two independent water supply systems, thereby improving the reliability and stability of the system. After the water source in the water absorption reservoir is pressurized by the water intake pump, the water is transported to each water use point through two water supply main pipes. When one group of water intake pumps or water supply network fails and stops operating, the water demand can be temporarily provided by the other group of water intake pumps and water supply network. For example, by connecting the regulating valve 12 and other valves to the on-off control, the water in the first water absorption reservoir 6 can be selected to flow through Figure 1 The water supply main pipe 10 on the left side or the water supply main pipe 10 on the right side can still supply water to the water point 13 when any water intake pump 8 (group) or any cyclone sand removal filter 9 is out of service.

[0033] In summary, in the deep underground engineering gravity-collecting water supply system of the utility model, the water source flow of the entire water supply system is that the natural infiltration water inside the underground mountain converges to the diversion and drainage tunnel, and then is gravity-collected by the diversion channel to the water intake reservoir, and finally is transported to the water use point through the water supply network by the water intake pump group, which solves the problem of water collection and water transportation difficulties in the case of deep underground engineering, and can provide reliable and stable water source conditions for deep underground projects such as underground laboratories. In terms of water supply, this scheme collects groundwater into the water absorption reservoir through the diversion and drainage tunnel and the diversion channel, and does not directly use water from the water diversion tunnel of the water source; in terms of water intake, the water intake pump is not in the conventional water source diversion tunnel, but in the water absorption reservoir; and it has a multi-stage filtration process, so that the water flow is relatively clean, avoiding the situation of many impurities in the reservoir. In addition, this scheme adjusts the water storage level through the water retaining gate, fully considers the dry season, and ensures the smooth gravity flow of the water diversion channel. It is preferred to have two independent water absorption and storage tanks to form two independent water supply systems to improve the reliability and stability of the water supply system; and it is preferred to use frequency conversion control to adapt to water demand of different flow rates. And the settings of pipelines, valves, etc. have been improved so that this system can meet various working conditions and maintenance needs.

Claims

1. A deep ground engineering gravity collection and water supply system, characterized in that: The invention comprises a drainage tunnel (1) for collecting natural seepage water in an underground mountain, the drainage tunnel (1) is connected to a water diversion channel (2), and a water absorption reservoir is arranged on the downstream side of the water diversion channel (2); and a water supply pipe network is also included, the water supply pipe network comprises a water intake pump (8), the input end of the water intake pump (8) is connected to the water absorption reservoir, the output end of the water intake pump (8) is connected to a water supply main pipe (10), and the downstream side of the water supply main pipe (10) is connected to a water use point (13) through a plurality of water use point branch pipes.

2. The deep ground engineering gravity collection and water supply system according to claim 1 is characterized in that: The water diversion channel (2) is led out from one side of the water diversion and drainage tunnel (1), and the bottom of the water diversion channel (2) is higher than the bottom of the water diversion and drainage tunnel (1).

3. The deep ground engineering gravity collection and water supply system according to claim 1 is characterized in that: A water retaining gate (3) for adjusting the water level is arranged on the downstream side of the connection between the diversion tunnel (1) and the diversion channel (2).

4. The deep ground engineering gravity collection and water supply system according to claim 1 is characterized in that: An installation groove is provided in the water diversion channel (2) at a position close to the water absorption reservoir, a grille (4) or a gate plate is installed and connected to the installation groove, and a flat filter screen (5) is also provided on the downstream side of the installation groove.

5. The deep ground engineering gravity collection and water supply system according to claim 1 is characterized in that: A water absorption reservoir is connected to more than two water intake pumps (8), one of which is a standby water intake pump; the output end of each water intake pump (8) is provided with a pump control valve (11).

6. The deep ground engineering gravity collection and water supply system according to claim 1 is characterized in that: A cyclone sand removal filter (9) is arranged in the water supply main pipe (10), and the cyclone sand removal filter (9) is located at the upstream side of the water point branch pipe.

7. The deep ground engineering gravity collection and water supply system according to claim 6 is characterized in that: A pre-filtration regulating valve (14) is provided on the upstream side of the cyclone sand removal filter (9), and a post-filtration regulating valve (15) is provided on the downstream side of the cyclone sand removal filter (9).

8. The deep ground engineering gravity collection and water supply system according to claim 1 is characterized in that: A branch pipe regulating valve (16) is provided on each water point branch pipe.

9. The deep ground engineering gravity collection and water supply system according to any one of claims 1 to 8, characterized in that: The water absorption reservoir comprises a first water absorption reservoir (6) and a second water absorption reservoir (7) which are arranged in parallel. The first water absorption reservoir (6) and the second water absorption reservoir (7) are independently separated to form two independent water supply systems.

10. The deep ground engineering gravity collection and water supply system according to claim 9, characterized in that: The water diversion channel (2) is connected to the first water absorption reservoir (6) and the second water absorption reservoir (7) respectively; the water intake pump (8) for the first water absorption reservoir (6) and the water intake pump (8) for the second water absorption reservoir (7) are independent and are respectively connected to two water supply mother pipes (10); a connecting pipe is connected between the two water supply mother pipes (10), and a connecting regulating valve (12) is provided on the connecting pipe.

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