CN209891185U - Direct-insertion type automatic drainage device for maintenance of salt rock roadbed - Google Patents

Abstract

The utility model discloses a direct insertion type automatic drainage device for the maintenance of a rock salt roadbed, which comprises a control box and a vertically arranged cylindrical external sleeve, wherein a cylindrical internal base pipe is suspended in the external sleeve, the bottom end of the internal base pipe is provided with a bottom valve, a miniature submersible pump is arranged in the internal base pipe, the upper end of a drainage pipe extends out of the internal base pipe, an upper water level probe and a lower water level probe are arranged in the internal base pipe, a controller is arranged in the control box, and a power supply electrically connected with the controller is arranged on the control box; the controller is connected with the miniature submersible pump; the controller is connected with the lower water level probe and the upper water level probe through signal wires. The direct-insertion type automatic water drainage device meets the requirement of high standard of safe use of the salt rock railway roadbed, starts from reducing the water level difference of the pressure-bearing water and the inter-crystal brine, reduces the water level difference of the pressure-bearing water and the inter-crystal brine by adopting an automatic control and water drainage mode, slows down the karst process of the salt rock railway roadbed, ensures the stability and safety of the salt rock railway roadbed, and has strong practicability, safety and reliability.

Description

Direct-insertion type automatic drainage device for maintenance of salt rock roadbed

Technical Field

The utility model belongs to the technical field of the reinforcement and the maintenance of salt rock roadbed and ground, a cut straightly formula automatic drainage device that is used for salt rock roadbed to maintain to support is related to. The drainage device can also be used for reinforcing and maintaining the foundation of buildings or structures in salt rock fields such as railways, highways, house buildings and the like.

Background

In recent years, due to the influence of development and climate anomaly, lake water with low salinity seeps and overflows to the salt rock roadbed, and the roadbed filled with salt rock is extremely easy to be corroded by the lake water. The brine is used for soaking light saline rock to make the roadbed filled with the salt rock soft, increase the sedimentation amount and generate uneven sedimentation deformation, and the brine with low mineralization degree is used for corroding the roadbed, so that the salt rock at the roadbed base forms a hollow or honeycomb coal-shaped structure, and the roadbed strength is seriously reduced. In addition, in recent years, the production of potash fertilizers is increased day by day, the water level of intercrystalline brine is reduced by adopting a large amount of brine, the water level difference between the confined water at the lower part of the rock stratum and the intercrystalline brine is increased, the upward osmosis of the confined water with low mineralization degree is accelerated, and the development of salt dissolution is accelerated; meanwhile, the lake-entering runoff of the river is increased, so that the water area of the brine lake is continuously enlarged, the low-salinity lake water is corroded, the rock salt roadbed is damaged, and the roadbed stability is seriously damaged.

The salt rock roadbed adopts the self-flowing drainage to prevent and control the salt dissolution in the construction, namely, the low-mineralization-degree pressure-bearing water is led out of the ground surface through the self-flowing drainage well by utilizing the water level difference between the pressure-bearing water and the inter-granular brine and is discharged into an evaporation pool outside the roadbed to evaporate water, so that the height of the underground pressure-bearing water head around the drainage well is reduced, the immersion amount of the pressure-bearing water into a salt layer is reduced, and the development of the salt dissolution is reduced. However, the water level of the intercrystalline brine is reduced by a large amount of brine extraction, the low-mineralization-degree confined water cannot be automatically discharged, and the gravity drainage well loses the effect.

Disclosure of Invention

The utility model aims at providing a cut straightly formula automatic drainage device for salt rock roadbed is maintained can automatic discharge brine in the well, keeps the roadbed stable and safety.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a direct-insertion type automatic drainage device for the maintenance of a rock salt roadbed comprises a control box and a vertically arranged cylindrical external sleeve, wherein a cylindrical internal base pipe is hung in the external sleeve, a bottom valve is installed at the bottom end of the internal base pipe, a miniature submersible pump is arranged in the internal base pipe, a water inlet of the miniature submersible pump is communicated with a water outlet pipe of the bottom valve, a water outlet of the miniature submersible pump is communicated with the lower end of a drainage pipe, the upper end of the drainage pipe extends out of the internal base pipe, an upper water level probe and a lower water level probe are arranged in the internal base pipe, and the upper water level probe is positioned above the lower water level;

a controller is arranged in the control box, and a power supply electrically connected with the controller is arranged on the control box; the controller is connected with the miniature submersible pump through a power line; the controller is connected with the lower water level probe through a first signal wire, and the controller is connected with the upper water level probe through a second signal wire.

The utility model discloses according to the high standard requirement of safe handling of salt rock railway roadbed, from the water level difference demand that reduces pressure-bearing water and crystal-to-crystal brine to utilize the solar photoelectric energy source, adopt the mode of automatic control and drainage to reduce the water level difference of pressure-bearing water and crystal-to-crystal brine, slow down the karst process of salt rock railway roadbed, ensure the stability and the safety of salt rock railway roadbed, also can be used to the building or the structure ground reinforcement and the maintenance in salt rock places such as railway, highway, housing construction. The method has the characteristics of strong practicability, safety, reliability and the like.

Drawings

Fig. 1 is a schematic view of the direct-insertion automatic drainage device of the present invention.

In the figure: 1. the device comprises an external sleeve, 2 an internal base pipe, 3 a bottom valve, 4 a micro submersible pump, 5 a lower water level probe, 6 a first signal line, 7 a power line, 8 an upper water level probe, 9 a second signal line, 10 a drain pipe, 11 a flange, 12 a protective head, 13 a control box, 14 a photovoltaic panel and 15 a controller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the utility model discloses direct-insert automatic drainage device, including control box 13 and the cylindric external sleeve pipe 1 of vertical setting, flange 11 is installed to the upper port of external sleeve pipe 1, the cover is equipped with cylindric built-in parent tube 2 in the hole of flange 11, the lower extreme of built-in parent tube 2 is located external sleeve pipe 1, the upper end of built-in parent tube 2 stretches out outside flange 11, the cover is equipped with protection head 12 that longitudinal section is the U-shaped on the built-in parent tube 2 upper end, an mouthful cover of protection head 12 is on built-in parent tube 2, another mouth of protection head 12 is the free mouth; the bottom end of the built-in base tube 2 is provided with a bottom valve 3, a micro submersible pump 4 is arranged in the built-in base tube 2, the water inlet of the micro submersible pump 4 is communicated with the water outlet pipe of the bottom valve 3, the water outlet of the micro submersible pump 4 is communicated with the lower end of a water outlet pipe 10, and the upper end of the water outlet pipe 10 sequentially penetrates through the built-in base tube 2 and a protection head 12 and extends out of a free opening of the protection head 12; an upper water level probe 8 and a lower water level probe 5 are arranged in the built-in base pipe 2, and the upper water level probe 8 is positioned above the lower water level probe 5.

A controller 15 is arranged in the control box 13, and a photovoltaic panel 14 is arranged on the control box 13; the photovoltaic panel 14 is electrically connected with the controller 15, and the controller 15 is connected with the micro submersible pump 4 through the power line 7; the controller 15 is connected with the lower water level probe 5 through a first signal wire 6, and the controller 15 is connected with the upper water level probe 8 through a second signal wire 9.

Use the utility model discloses during automatic drainage device of suspension type: and vertically digging a well at the position of the salt rock roadbed where water is to be drained by using a drilling machine, arranging a control box 13 beside the drilled well, and adjusting the angle of a photovoltaic panel 14. The external casing 1 is placed into the flowing water well, the top of the external casing 1 is flush with the ground, and the upper end of the drain pipe 10 is communicated with the water delivery pipe. At this point, the inner base pipe 2 is suspended within the outer casing 1 by a flange 11. The lower water level probe 5 is positioned at the position of the lowest water level in the well which is determined in advance, and the upper water level probe 8 is positioned at the position of the highest water level in the well which is determined in advance. When the brine water level in the well reaches the position of the upper water level probe 8, the upper water level probe 8 sends a signal to the controller 15, the controller 15 starts the micro submersible pump 4 after receiving the signal, the bottom valve 3 is opened under the action of suction force generated by the micro submersible pump 4, the brine in the well is sent into the drain pipe 10 through the bottom valve 3 and the micro submersible pump 4, enters the water conveying pipe arranged outside the well through the drain pipe 10 and is conveyed to a designated place. The water level in the well is continuously reduced, when the water level is reduced to the position of the lower water level probe 5, the lower water level probe 5 sends a signal to the controller 15, and the controller 15 closes the micro submersible pump 4 after receiving the signal and stops draining water from the well.

The external casing 1 is made of metal materials, plays a role in protecting internal facilities, and in order to prevent salt water corrosion, asphalt coatings are coated on the inner wall and the outer wall of the external casing 1.

The built-in base tube 2 is made of an anti-corrosion material.

The bottom valve 3 can prevent impurities in brine from entering the water inlet of the micro submersible pump 4 to block the water inlet, and prevent the brine in the drain pipe 10 from flowing backwards.

The micro submersible pump 4 is corrosion resistant, has durability of its internal components, and is installed and used in a manner of being completely placed in brine to prevent damage due to heat.

The power line 7 is a power line of the micro submersible pump 4, and the power-off and the power-on are controlled by a switch of the controller 15.

Photovoltaic board 14 does the utility model discloses suspension type automatic drainage device's electric energy source, generating current transmits to controller 15.

The protective head 12 functions to protect the signal lines, the power line 7 and the drain pipe 10 and can prevent foreign materials from falling into the built-in base pipe 2.

Claims (4)

1. The direct-insertion type automatic drainage device for the maintenance of the rock salt roadbed is characterized by comprising a control box (13) and a vertically arranged cylindrical external sleeve (1), wherein a cylindrical internal base pipe (2) is hung in the external sleeve (1), a bottom valve (3) is installed at the bottom end of the internal base pipe (2), a micro submersible pump (4) is arranged in the internal base pipe (2), a water inlet of the micro submersible pump (4) is communicated with a water outlet pipe of the bottom valve (3), a water outlet of the micro submersible pump (4) is communicated with the lower end of a drain pipe (10), the upper end of the drain pipe (10) extends out of the internal base pipe (2), an upper water level probe (8) and a lower water level probe (5) are arranged in the internal base pipe (2), and the upper water level probe (8) is positioned above the lower water level probe (5);

a controller (15) is installed in the control box (13), and a power supply electrically connected with the controller (15) is arranged on the control box (13); the controller (15) is connected with the micro submersible pump (4) through a power line (7); the controller (15) is connected with the lower water level probe (5) through a first signal wire (6), and the controller (15) is connected with the upper water level probe (8) through a second signal wire (9).

2. The direct-insertion type automatic drainage device for the maintenance of the salt rock roadbed according to claim 1, wherein a flange (11) is installed at an upper port of the external sleeve (1), a cylindrical internal base pipe (2) is sleeved in an inner hole of the flange (11), the lower end of the internal base pipe (2) is positioned in the external sleeve (1), and the upper end of the internal base pipe (2) extends out of the flange (11).

3. The direct-insertion type automatic drainage device for the maintenance of the salt rock subgrade according to the claim 1 or 2, characterized in that a protection head (12) with a U-shaped longitudinal section is sleeved at the upper end of the built-in base pipe (2), one opening of the protection head (12) is sleeved on the built-in base pipe (2), the other opening of the protection head (12) is a free opening, and the upper end of the drainage pipe (10) sequentially penetrates through the built-in base pipe (2) and the protection head (12) and extends out of the free opening of the protection head (12).

4. The in-line automatic drainage device for the maintenance of salt rock subgrade according to the claim 1, characterized in that the power supply adopts a photovoltaic panel (14), and the photovoltaic panel (14) is electrically connected with a controller (15).

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