Drainage device for reducing crystallization in a tunnel drainage system

Abstract

This utility model belongs to the field of tunnel drainage technology and relates to a drainage device for reducing crystallization in tunnel drainage systems. It includes a water tank, which is fitted with a pressure-bearing outer shell. One end of the water tank has a water-diverting plate, and the other end forms the side wall of the first water tank. Pressure-limiting components and dosing components are installed in the gaps on both sides between the pressure-bearing outer shell and the water tank. The pressure-limiting components control the opening and closing of the dosing components. The structure of the water tank in direct contact with the surrounding rock creates a physical barrier layer, cutting off the groundwater seepage path and preventing it from penetrating the initial support and contacting the shotcrete, effectively preventing the mechanical property degradation of the concrete due to calcium dissolution.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel drainage technology and relates to a drainage device that reduces crystallization in tunnel drainage systems. Background Technology

[0002] To ensure the stability of the tunnel's operating environment, a drainage system is typically installed between the initial support and the secondary lining during tunnel construction. This system includes circumferential drainage blind pipes, longitudinal drainage blind pipes, double-sided drainage ditches, transverse water inlet pipes, and a central drainage ditch, forming a multi-dimensional drainage network to prevent groundwater intrusion. However, when groundwater seeps into the initial support, it continuously dissolves solid calcium hydrates from the shotcrete, leading to increased concrete porosity and deterioration of mechanical properties. Furthermore, once groundwater enters the drainage system, crystals accumulate and adhere to the pipe walls, eventually causing blockages. This problem directly prevents groundwater from draining from the tunnel, causing a series of hazards: in mild cases, it can cause cracks in the lining structure, affecting the tunnel's aesthetics; in severe cases, it can lead to structural deformation, decreased stability of the support system, and a threat to traffic safety.

[0003] Therefore, there is an urgent need to propose a drainage device that reduces crystallization in tunnel drainage systems in order to solve the problems existing in the prior art. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and to propose a drainage device that reduces crystallization in tunnel drainage systems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A drainage device for reducing crystallization in a tunnel drainage system is characterized by comprising a water tank, wherein a pressure-bearing shell is fitted over the water tank, a water-guiding plate is provided at one end of the water tank, and the other end of the water tank is a first water tank sidewall. Pressure limiting components and chemical control components are provided in the gaps on both the left and right sides between the pressure-bearing shell and the water tank, and the opening and closing of the chemical control components are controlled by the pressure limiting components.

[0007] The water tank is equipped with a horizontal partition. Below the horizontal partition is a sewage discharge area. Above the horizontal partition are a first vertical partition and a second vertical partition. Between the second vertical partition and the water inlet plate is a chemical dosing area. A filter plate is installed in the chemical dosing area. A pressure limiting area is installed between the first vertical partition and the side wall of the first water tank. A mixing area is installed between the first vertical partition and the second vertical partition.

[0008] Furthermore, a partition plate is provided in the middle of the mixing zone, and a first mixing plate and a second mixing plate are respectively provided on both sides of the partition plate. A third mixing plate is provided on the inner side of the first vertical partition plate, and a fourth mixing plate is provided on the inner side of the second vertical partition plate. The third mixing plate and the first mixing plate are staggered, and the fourth mixing plate and the second mixing plate are staggered. A fifth mixing plate is provided on the side wall of the second water tank of the water tank, and a sixth mixing plate is provided on the side wall of the third water tank. The left sides of the fifth and sixth mixing plates are connected to the first vertical partition plate, and the right side of the fifth mixing plate is connected to the inner side of the second vertical partition plate. The middle of the fifth and sixth mixing plates is connected to the partition plate, and the fifth and sixth mixing plates are staggered.

[0009] Furthermore, the pressure limiting assembly includes several U-shaped pressure limiting arms. An outlet is provided on the side wall of the first water tank, and a first limiting plate is provided below the outlet. The closed end of the U-shaped pressure limiting arm is located on the first limiting plate, and a blocking plate is provided in the middle of the closed end of the U-shaped pressure limiting arm. A connecting rope is connected to the open end of the U-shaped pressure limiting arm. The connecting rope is connected to a first spring plate through a fixed pulley. A second limiting plate is provided above the first spring plate, and a pressure limiting plate is provided below the first spring plate. A second spring plate is provided on the pressure limiting plate, and a spring is provided between the first spring plate and the second spring plate.

[0010] Furthermore, the drug control assembly includes a first rigid tube and a second rigid tube, with a flexible tube disposed between the first and second rigid tubes. The first rigid tube is connected to the drug pack, and the second rigid tube is connected to the drug dispensing port on the side wall of the drug dispensing area. The first and second rigid tubes are fixed above a second limiting plate by a tube fixator. A first connecting hole is provided on the second limiting plate, and a squeezing block is provided on the first spring plate. The squeezing block passes through the first connecting hole and is connected to the squeezing plate. The squeezing plate is slidably connected to an inverted U-shaped plate, and the flexible tube is located between the squeezing plate and the inverted U-shaped plate.

[0011] Furthermore, the first spring plate is provided with a connecting ring, which is connected to one end of the connecting rope. Both the pressure limiting plate and the second spring plate are provided with a second connecting hole for the connecting rope to pass through.

[0012] Furthermore, the filter plate is an L-shaped filter plate, and the edge of the L-shaped filter plate is provided with a second flange plate, which is screwed to the side wall of the dosing area.

[0013] Furthermore, the water tank is provided with a primary support shell and a secondary lining shell. The tail end of the primary support shell and the head end of the secondary lining shell are both provided with a first flange plate, and the two first flange plates are connected together. The inner surfaces of the primary support shell and the secondary lining shell are provided with mounting grooves.

[0014] Furthermore, a first mounting groove is provided on the upper and lower inner walls of the pressure-bearing shell, and a second mounting groove is provided on one side of the first mounting groove. The first mounting groove and the second mounting groove are parallel, and a sealing plate is provided between the first mounting groove and the second mounting groove.

[0015] Furthermore, the two first flange plates are connected to each other by splicing protrusions and splicing recesses.

[0016] Furthermore, the water intake plate includes a water collection plate, the surface of which is provided with a notch, and a mounting plate is provided behind the water collection plate. The mounting plate is provided with a groove, which is connected to one end of the water tank.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Anti-seepage design: By constructing a physical barrier layer through the structure of the water tank in direct contact with the surrounding rock, the seepage path of groundwater is cut off, preventing it from penetrating the initial support and contacting the shotcrete, and effectively preventing the mechanical property degradation of the concrete due to calcium leaching.

[0019] 2. Chemical scale inhibition mechanism: The dosing component works synergistically with the mixing zone within the water tank to achieve efficient mixing of the chemical with groundwater. Through chemical reaction, calcium ions in the water are eliminated, inhibiting nucleation within the drainage pipe at its source, significantly reducing the probability of crystallization and minimizing the risk of blockage in the tunnel drainage system.

[0020] 3. Intelligent Control and Ecological Protection: The pressure-limiting component adopts a linkage design with connecting ropes. The spring plate moves with the pressure-limiting plate, driving the squeezing block to precisely control the opening and closing of the hose, enabling on-demand drug delivery and avoiding waste. Simultaneously, this component can dynamically adjust the drainage volume to prevent excessive groundwater discharge, achieving the dual goals of water resource protection and ecological balance. Attached Figure Description

[0021] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the device of this utility model;

[0024] Figure 2 This is a schematic diagram of the pressure-bearing outer shell structure of this utility model;

[0025] Figure 3 This is a partial schematic diagram of the pressure-bearing outer shell of this utility model;

[0026] Figure 4 This is a schematic diagram of the mounting plate structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the water collection plate structure of this utility model;

[0028] Figure 6 This is a schematic diagram of the water tank structure of this utility model;

[0029] Figure 7 This is a cross-sectional view of the internal structure of the water tank of this utility model.

[0030] Figure 8 This is a side sectional view of the internal structure of the water tank of this utility model;

[0031] Figure 9 This is a schematic diagram of the pressure limiting component structure of this utility model;

[0032] Figure 10 This is a schematic diagram of the spring plate structure of this utility model;

[0033] Figure 11 This is a schematic diagram of the drug control component structure of this utility model;

[0034] Figure 12 This is a schematic diagram of the pipe fixing device structure of this utility model;

[0035] Figure 13 This is a schematic diagram of the pipe clamp structure of this utility model;

[0036] Figure 14 This is a schematic diagram of the filter plate structure of this utility model.

[0037] Wherein: 1 is the pressure-bearing outer shell; 11 is the primary support outer shell; 12 is the secondary lining outer shell; 13 is the first flange plate; 14 is the splicing protrusion; 15 is the splicing recess; 16 is the first mounting groove; 17 is the second mounting groove; 18 is the sealing plate; 2 is the water intake plate; 21 is the water collection plate; 211 is the recess; 22 is the mounting plate; 221 is the water inlet; 222 is the groove; 223 is the sealing strip; 3 is the water tank; 301 is the tank body; 302 is the dosing area; 303 is the mixing area; 3031 is the partition plate; 3032 is the first mixing... 3033 is the second mixing plate; 3034 is the third mixing plate; 3035 is the fourth mixing plate; 3036 is the fifth mixing plate; 3037 is the sixth mixing plate; 304 is the pressure limiting zone; 305 is the outlet; 306 is the first limiting plate; 307 is the dosing port; 308 is the first bolt hole; 309 is the third mounting groove; 310 is the fourth mounting groove; 311 is the cleaning plate; 312 is the waterproof pad; 313 is the horizontal partition; 314 is the sewage discharge zone; 315 is the second bolt hole; 316 is the first vertical partition. Plate; 317 is the second vertical partition; 318 is the side wall of the first water tank; 319 is the side wall of the second water tank; 320 is the side wall of the third water tank; 4 is the pressure limiting assembly; 41 is the pressure limiting plate; 411 is the U-shaped pressure limiting arm; 412 is the blocking plate; 42 is the pressure control assembly; 421 is the mounting block; 422 is the second limiting plate; 4221 is the first connecting hole; 423 is the spring plate; 4231 is the first spring plate; 4232 is the second spring plate; 424 is the pressure limiting plate; 425 is the insertion hole; 426 is the pressure control screw; 427 428 is the second connecting hole; 43 is the connecting rope; 44 is the fixed pulley; 5 is the drug control assembly; 51 is the tube holder; 511 is the compression screw; 512 is the round plate; 513 is the tube holder housing; 52 is the tube presser; 521 is the compression plate; 522 is the inverted U-shaped plate; 523 is the compression block; 53 is the drug bag; 531 is the drug inlet; 54 is the weight; 55 is the first rigid tube; 56 is the flexible tube; 57 is the second rigid tube; 6 is the filter plate; 61 is the second flange plate; 62 is the third bolt hole; 63 is the insertion plate. Detailed Implementation

[0038] Exemplary embodiments will be described in detail below. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples consistent with some aspects of this invention as detailed in the appended claims.

[0039] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Example

[0040] A drainage device for reducing crystallization in a tunnel drainage system includes a water tank 3, with a pressure-bearing outer shell 1 covering the outside of the water tank 3. A water-guiding plate 2 is provided at one end of the water tank 3, and the other end of the water tank 3 is a first water tank sidewall 318. Pressure limiting components 4 and chemical control components 5 are provided in the gaps on both the left and right sides between the pressure-bearing outer shell 1 and the water tank 3. The opening and closing of the chemical control components 5 are controlled by the pressure limiting components 4.

[0041] In this embodiment: as Figure 1 , Figure 4 and Figure 5 As shown, a water inlet plate 2 is connected to one side of the pressure-bearing shell 1. A water tank 3 is installed in the middle of the interior of the pressure-bearing shell 1. The two side chambers 301 of the water tank 3 are provided with dosing ports 307. A filter plate 6 is installed at the front end of the water tank 3. The filter plate 6 and the water tank 3 are connected to the water inlet plate 2. Pressure limiting components 4 and chemical control components 5 are installed in the space on both sides of the water tank 3 after it is installed with the pressure-bearing shell 1. The chemical control components 5 are connected to the dosing ports 307 of the water tank 3. The pressure limiting components 4 and the chemical control components 5 are connected to the two sides of the water tank 3.

[0042] like Figure 6 , Figure 7 , Figure 8 and Figure 14 As shown, first bolt holes 308 are provided on both sides of the housing 301, and second bolt holes 315 are provided on the transverse partition 313. The positional relationship between the first bolt holes 308 and the second bolt holes 315 corresponds to the third bolt hole 62, that is, the filter plate 6 is screwed to the water tank 3. The interior of the housing 301 is provided with first vertical partitions 316 and second vertical partitions 317, which, together with the transverse partition 313, divide the interior of the housing 301 into a dosing zone 302, a mixing zone 303, a pressure limiting zone 304, and a sewage discharge zone 314. The partition 3031 divides the mixing zone 303 into two parts. The mixing zone 303 is equipped with a first mixing plate 3032, a second mixing plate 3033, a third mixing plate 3034, a fourth mixing plate 3035, a fifth mixing plate 3036, and a sixth mixing plate 3037, which can make the water flowing through the mixing zone 303 fully mixed; the front end of the sewage discharge zone 314 is equipped with a cleaning plate 311, and a waterproof padding layer 312 is provided around the cleaning plate 311 to prevent water leakage.

[0043] Furthermore, a horizontal partition 313 is provided inside the water tank 3. Below the horizontal partition 313 is a sewage discharge area 314. Above the horizontal partition 313 are a first vertical partition 316 and a second vertical partition 317. A dosing area 302 is provided between the second vertical partition 317 and the water inlet plate 2. A filter plate 6 is provided in the dosing area. A pressure limiting area 304 is provided between the first vertical partition 316 and the side wall 318 of the first water tank. A mixing area 303 is provided between the first vertical partition 316 and the second vertical partition 317.

[0044] Furthermore, a partition plate 3031 is provided in the middle of the mixing zone 303, and a first mixing plate 3032 and a second mixing plate 3033 are respectively provided on both sides of the partition plate 3031. A third mixing plate 3034 is provided inside the first vertical partition plate 316, and a fourth mixing plate 3035 is provided inside the second vertical partition plate 317. The third mixing plate 3034 is staggered with the first mixing plate 3032, and the fourth mixing plate 3035 is staggered with the second mixing plate 3033. The first mixing plate 3034 of the water tank 3 is... A fifth mixing plate 3036 is provided on the side wall 319 of the second water tank, and a sixth mixing plate 3037 is provided on the side wall 320 of the third water tank. The left side of the fifth mixing plate 3036 and the sixth mixing plate 3037 are connected to the first vertical partition 316, and the right side of the fifth mixing plate 3036 is connected to the inner side of the second vertical partition 317. The middle part of the fifth mixing plate 3036 and the sixth mixing plate 3037 is connected to the partition plate 3031. The fifth mixing plate 3036 and the sixth mixing plate 3037 are arranged alternately.

[0045] In this embodiment: as Figure 6 , Figure 9 and Figure 10 As shown, the pressure limiting assembly includes a pressure limiting plate 41, a pressure control assembly 42, a connecting rope 43, and a fixed pulley 44. The pressure limiting plate 41 includes a blocking plate 412, and the rear end of the blocking plate 412 is provided with a circular plug that can be inserted into the water outlet 305 to block water. The pressure control assembly 42 includes a mounting block 421, which is welded to the housing 301. In this embodiment, there is one mounting block 421 on each side of the third mounting groove 309 and the fourth mounting groove 310. The third mounting groove 309 and the fourth mounting groove 310 provide positioning for the welding of the mounting block 421, that is, the horizontal center of the mounting block 421 is aligned with the horizontal center of the third mounting groove 309 and the fourth mounting groove 310; the second limiting plate 422 and the pressure limiting plate 424 are installed in the mounting block 421 through the insertion hole 425 and are aligned with the third mounting groove 309 and the fourth mounting groove 310, respectively. The two ends of the connecting rope 43 are connected to the U-shaped pressure limiting arm 411 and the first spring plate 4231, respectively. The first spring plate 4231 and the second spring plate 4322 are located in the third mounting groove 309 and the fourth mounting groove 310, respectively. The upper part of the pressure control screw 426 is connected to the second spring plate 4232. By rotating the pressure control screw 426, the second spring plate 4232 is pushed upward, thereby compressing the spring, that is, applying a preload to the spring plate 423, so that the pressure limiting plate 41 needs to overcome the applied preload when it moves.

[0046] Furthermore, the pressure limiting component 4 includes several U-shaped pressure limiting arms 411. An outlet 305 is provided on the side wall 318 of the first water tank. A first limiting plate 306 is provided below the outlet 305. The closed end of the U-shaped pressure limiting arm 411 is located on the first limiting plate 306. A blocking plate 412 is provided in the middle of the closed end of the U-shaped pressure limiting arm 411. A connecting rope 43 is connected to the open end of the U-shaped pressure limiting arm 411. The connecting rope 43 is connected to the first spring plate 4231 through a fixed pulley 44. A second limiting plate 422 is provided above the first spring plate 4231. A pressure limiting plate 424 is provided below the spring plate 423. A second spring plate 4232 is provided above the pressure limiting plate 424. A spring is provided between the first spring plate 4231 and the second spring plate 4232.

[0047] Furthermore, such as Figure 10 As shown, the first spring plate 4231 is provided with a connecting ring 427, which is connected to one end of the connecting rope 43 through the connecting ring 428. The pressure limiting plate 424 and the second spring plate 4234 are both provided with a second connecting hole 427 for the connecting rope 43 to pass through.

[0048] In this embodiment: as Figure 11 , Figure 12 and Figure 13As shown, the drug control assembly 5 includes a tube holder 51 and a tube clamp 52. The tube holder 51 is welded to the housing 301, and there is one on each side of the tube clamp 52, with both having the same height. A clamping screw 511 is provided above the tube holder 51, and a circular plate 512 is connected to the lower part of the clamping screw 511. One end of the first rigid tube 55 is connected to the drug pack 53, and the other end passes through the left tube holder 51 and connects to the hose 56; one end of the second rigid tube 57 is connected to the drug inlet 307, and the other end passes through the right tube holder 51 and connects to the hose 56. Tightening the clamping screw 511 causes the circular plate 512 to clamp the first rigid tube 55 and the second rigid tube 57, fixing them in place. The purpose is to keep the hose 56 in a horizontal state and prevent the hose 56 from bending and causing the inside of the tube to close. The hose crimper 52 includes a crimping plate 521, which is slidably connected to an inverted U-shaped plate 522. The inverted U-shaped plate 522 is fixed to the second limiting plate 422. The lower part of the crimping plate 521 is fixed to the crimping block 523. The lower part of the crimping block 523 contacts the first spring plate 4231 through the first connecting hole 4221. The height of the crimping block 523 should be sufficient to flatten the hose 56 initially, so that its internal space is closed. The heavy block 54 squeezes the medicine bag 53, and the medicine reaches the hose 56 through the first rigid pipe 55. At this time, the hose 56 is closed. When the water pressure increases to the pre-pressure value of the spring plate 423, the upper part of the first spring plate 4231 is pulled down by the connecting rope 43, and the squeezing block 523 moves down accordingly, reducing the squeezing force on the hose 56. The inside of the hose 56 opens, allowing the medicine to flow into the second rigid pipe 57 and enter the dosing area 302 of the water tank 3 through the dosing port 307. When the medicine in the medicine bag 53 is insufficient, the medicine can be replenished through the dosing port 512.

[0049] Furthermore, the drug control component 5 includes a first rigid tube 55 and a second rigid tube 57, with a flexible tube 56 disposed between the first rigid tube 55 and the second rigid tube 57. The other end of the first rigid tube 55 is connected to the drug pack 53, and the other end of the second rigid tube 57 is connected to the drug inlet 307 on the side wall of the drug delivery area 302. The first rigid tube 55 and the second rigid tube 57 are fixed to the upper part of the second limiting plate 422 by a tube fixer 51. The second limiting plate 422 is provided with a first connecting hole 4221. The extrusion plate 521 is slidably connected to the inverted U-shaped plate 522, and the flexible tube 56 is located between the extrusion plate 521 and the inverted U-shaped plate 522.

[0050] In this embodiment: as Figure 4 and Figure 14 As shown, the front end of the filter plate 6 is provided with an insert plate 63. The insert plate 63 and the two sides of the housing 301 form an H-shaped insert plate, which is inserted into the groove 222 of the mounting plate 22. To prevent water from flowing out at the contact point, a sealing strip 223 is provided around the groove 222.

[0051] Furthermore, the filter plate 6 is an L-shaped filter plate, and the edge of the L-shaped filter plate is provided with a second flange plate 61, which is screwed to the side wall of the dosing area 302.

[0052] In this embodiment: as Figure 2 and Figure 3 As shown, the pressure-bearing outer shell 1 includes a primary support shell 11 and a secondary lining shell 12. A first flange plate 13 is provided at the tail end of the primary support shell 11 and the head end of the secondary lining shell 12. The lower part of the first flange plate 13 of the primary support shell 11 has a splicing protrusion 14, and the lower part of the first flange plate 13 of the secondary lining shell 12 has a splicing recess 15. The splicing protrusion 14 and the splicing recess 15 can be spliced ​​together to increase the difficulty of water seepage and prevent water from flowing out from the contact point. The primary support shell 11 and the secondary lining shell 12 are connected by the first flange plate 13. The pressure-bearing outer shell 1 has first mounting grooves 16 at its upper and lower ends. The upper sides of the vertical partition 312 have slits to facilitate the installation of the water tank 3 into the mounting grooves 16. The pressure-bearing outer shell 1 has second mounting grooves 17 and sealing plates 18 at its left and right ends. The horizontal end of the sealing plate 18 contacts the flexible end of the first mounting groove 16, ensuring a tight fit between the rubber flexible plate of the first mounting groove 16 and the water tank 3, preventing water from flowing out from the contact point between the water tank 3 and the mounting groove 16. The pressure limiting component 4, the chemical control component 5, and the filter plate 6 can be pre-installed on the water tank 3 before inserting it into the pressure-bearing outer shell 1 for easy installation. If any component malfunctions, the water tank 3 can be removed for maintenance, facilitating upkeep.

[0053] Furthermore, the water tank 3 is provided with a primary support shell 11 and a secondary lining shell 12. The tail end of the primary support shell 11 and the head end of the secondary lining shell 12 are both provided with a first flange plate 13, and the two first flange plates 13 are connected to each other. The inner surfaces of the primary support shell 11 and the secondary lining shell 12 are provided with mounting grooves.

[0054] Furthermore, a first mounting groove 16 is provided on the inner walls of the upper and lower sides of the pressure-bearing shell, and a second mounting groove 17 is provided on one side of the first mounting groove. The first mounting groove 16 and the second mounting groove 17 are parallel, and a sealing plate 18 is provided in the second mounting groove 17.

[0055] Furthermore, the two first flange plates 13 are connected to each other by splicing protrusions 14 and splicing recesses 15.

[0056] In this embodiment: as Figure 1 , Figure 4 and Figure 5 As shown, the outer shell 11 of the primary support is welded to the perimeter of the water collection plate 21. The surface of the water collection plate 21 is provided with a notch 211 to facilitate the collection of groundwater to the inlet 221.

[0057] Furthermore, the water guide plate 2 includes a water collection plate 21, the surface of which is provided with a notch 211, and a mounting plate 22 is provided behind the water collection plate 21. The mounting plate is provided with a groove 222, through which the water guide plate 2 is connected to one end of the water tank 3.

[0058] Groundwater enters the water tank 3 through the inlet 221 and is filtered by the filter plate 6. The filtered sediment enters the sewage discharge area 314, while the clean water passes through the dosing area 302, the mixing area 303, and finally the pressure limiting area 304. When the water pressure increases to the pre-pressure value of the first spring plate 4231 and the second spring plate 4232, the block plate 412 moves along the first limit plate 306, opening the outlet 307 to drain water. At the same time, the movement of the block plate 412 causes the drug control component 5 to start working, putting the drugs in the drug pack 3 into the dosing area 302 of the water tank through the dosing port 307. When there is a lot of sediment in the sewage discharge area 314 and it needs to be cleaned, the cleaning plate 311 can be pulled out and the sediment in the sewage discharge area 314 can be scraped out manually or the sewage discharge area 314 can be cleaned directly with high-pressure water.

[0059] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.

[0060] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A drainage device for reducing crystallization in a tunnel drainage system, characterized in that Includes a water tank (3), the water tank (3) is fitted with a pressure-bearing shell (1), one end of the water tank (3) is provided with a water guide plate (2), the other end of the water tank (3) is a first water tank side wall (318), and pressure limiting components (4) and drug control components (5) are provided in the gaps on both the left and right sides between the pressure-bearing shell (1) and the water tank (3). The opening and closing of the drug control components (5) are controlled by the pressure limiting components (4). The water tank (3) is provided with a horizontal partition (313). The area below the horizontal partition (313) is a sewage discharge area. The area above the horizontal partition (313) is provided with a first vertical partition (316) and a second vertical partition (317). A dosing area (302) is provided between the second vertical partition (317) and the water inlet plate (2). A filter plate (6) is provided in the dosing area. A pressure limiting area (304) is provided between the first vertical partition (316) and the side wall (318) of the first water tank. A mixing area (303) is provided between the first vertical partition (316) and the second vertical partition (317).

2. A crystallization-reducing drainage device for a tunnel drainage system according to claim 1, characterized in that A partition plate (3031) is provided in the middle of the mixing zone (303). A first mixing plate (3032) and a second mixing plate (3033) are respectively provided on both sides of the partition plate (3031). A third mixing plate (3034) is provided inside the first vertical partition plate (316), and a fourth mixing plate (3035) is provided inside the second vertical partition plate (317). The third mixing plate (3034) is staggered with the first mixing plate (3032), and the fourth mixing plate (3035) is staggered with the second mixing plate (3033). The second passage of the water tank (3) A fifth mixing plate (3036) is provided on the side wall (319) of the water tank, and a sixth mixing plate (3037) is provided on the side wall (320) of the third water tank. The left side of the fifth mixing plate (3036) and the sixth mixing plate (3037) are connected to the first vertical partition (316), and the right side of the fifth mixing plate (3036) is connected to the inner side of the second vertical partition (317). The middle part of the fifth mixing plate (3036) and the sixth mixing plate (3037) are connected to the partition plate (3031). The fifth mixing plate (3036) and the sixth mixing plate (3037) are staggered.

3. The drainage device for reducing crystallization in a tunnel drainage system according to claim 1, characterized in that, The pressure limiting assembly (4) includes several U-shaped pressure limiting arms (411). An outlet (305) is provided on the side wall (318) of the first water tank. A first limiting plate (306) is provided below the outlet (305). The closed end of each U-shaped pressure limiting arm (411) is located on the first limiting plate (306). A blocking plate (412) is provided in the middle of the closed end of each U-shaped pressure limiting arm (411). The open end of each U-shaped pressure limiting arm (411) is connected to... A connecting rope (43) is connected to a first spring plate (4231) via a fixed pulley (44). A second limiting plate (422) is provided above the first spring plate (4231), and a pressure plate (424) is provided below the first spring plate (4231). A second spring plate (4232) is provided on the pressure plate (424), and a spring is provided between the first spring plate (4231) and the second spring plate (4232).

4. A crystallization-reducing drainage device for a tunnel drainage system according to claim 3, characterized in that The drug control component (5) includes a first rigid tube (55) and a second rigid tube (57). A flexible tube (56) is provided between the first rigid tube (55) and the second rigid tube (57). The first rigid tube (55) is connected to the drug pack (53). The second rigid tube (57) is connected to the drug inlet (307) on the side wall of the drug delivery area (302). The first rigid tube (55) and the second rigid tube (57) are fixed above the second limiting plate (422) by a tube fixer (51). The second limiting plate (422) is provided with a first connecting hole (4221). The first spring plate (4231) is provided with a squeezing block (523). The squeezing block (523) passes through the first connecting hole (4221) and is connected to the squeezing plate (521). The squeezing plate (521) is slidably connected to the inverted U-shaped plate (522). The flexible tube (56) is located between the squeezing plate (521) and the inverted U-shaped plate (522).

5. A crystallization-reducing drainage device for a tunnel drainage system according to claim 3, characterized in that The first spring plate (4231) is provided with a connecting ring (428), which is connected to one end of the connecting rope (43). The pressure limiting plate (424) and the second spring plate (4232) are both provided with a second connecting hole (427) for the connecting rope (43) to pass through.

6. A crystallization-reducing drainage device for a tunnel drainage system according to claim 1, characterized in that The filter plate (6) is an L-shaped filter plate, and the edge of the L-shaped filter plate is provided with a second flange plate (61), which is screwed to the side wall of the dosing area (302).

7. A crystallization-reducing drainage device for a tunnel drainage system according to claim 1, characterized in that The water tank (3) is provided with a primary support shell (11) and a secondary lining shell (12). The tail end of the primary support shell (11) and the head end of the secondary lining shell (12) are both provided with a first flange plate (13), and the two first flange plates (13) are connected to each other. The inner surfaces of the primary support shell (11) and the secondary lining shell (12) are provided with mounting grooves.

8. A crystallization-reducing drainage device for a tunnel drainage system according to claim 6, characterized in that The upper and lower inner walls of the pressure-bearing shell are respectively provided with a first mounting groove (16), and a second mounting groove (17) is provided on one side of the first mounting groove. The first mounting groove (16) and the second mounting groove (17) are parallel, and a sealing plate (18) is provided between the first mounting groove (16) and the second mounting groove (17).

9. A crystallization-reducing drainage device for a tunnel drainage system according to claim 6, characterized in that The two first flange plates (13) are connected to each other by splicing protrusions (14) and splicing recesses (15).

10. A crystallization-reducing drainage device for a tunnel drainage system according to claim 1, characterized in that The water intake plate (2) includes a water collection plate (21), the surface of which is provided with a notch (211), and a mounting plate (22) is provided behind the water collection plate (21), the mounting plate is provided with a groove (222), and is connected to one end of the water tank (3) through the groove (222).

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