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Device and method for monitoring water level of large water gushing underground reservoir

A water level monitoring device and a technology for underground reservoirs, which are applied in the direction of displaying liquid level indicators, signal transmission systems, instruments, etc. through pressure measurement, can solve the problems of short service life and difficult signal transmission, and achieve the effect of strong durability.

Active Publication Date: 2020-02-14
CHNA ENERGY INVESTMENT CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a water level monitoring device and method for an underground reservoir with a large amount of water inflow, so as to overcome the technical problems of difficult signal transmission and short service life existing in the wireless pressure sensor monitoring method in the prior art

Method used

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  • Device and method for monitoring water level of large water gushing underground reservoir
  • Device and method for monitoring water level of large water gushing underground reservoir
  • Device and method for monitoring water level of large water gushing underground reservoir

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Embodiment 1

[0027] This embodiment provides a water level monitoring device for a large water inflow underground reservoir, such as figure 1 As shown, it is applied to large water inflow underground reservoirs. It includes an underground reservoir 101 , a roof 102 , and a dam body 103 . And this device includes groove, borehole 201, Z-shaped casing 202, pressure sensor 203, monitoring terminal 204, cable 205. in:

[0028] The groove is arranged on the roof 102 of the underground reservoir, and its end is in contact with the outlet hole on the side wall of the underground reservoir 101; the bore 201 is arranged on the roof 102, and the The depth of the borehole 201 is greater than the maximum height 206 of the water level of the underground reservoir 101; the Z-shaped casing 202 includes a first pipe section, a second pipe section and a third pipe section, and the first pipe section and the third pipe section Parallel, the first pipe section extends into the interior of the underground ...

Embodiment 2

[0033] The water level monitoring device for underground reservoirs with a large amount of water gushing provided by this embodiment, such as figure 2 with image 3 Shown, on the basis of the scheme of embodiment 1, do following optimization and improvement:

[0034]A fixing piece 207 is provided at the starting point of the groove, and the middle part of the second pipe section of the Z-shaped sleeve 202 is fixed at the starting point of the groove through the fixing piece 207 . Wherein, the fixed position of the second pipe section can meet the requirement that the first pipe section extends into the underground water reservoir 101 , so that the third pipe section extends into the borehole 201 . The fixing part can be a fixing ring, and before the dam body 103 is built, the Z-shaped sleeve 202 can be fixed on the anchor net of the roof through the fixing part 207, which is convenient for construction and fixing. Further preferably, a plurality of hollow holes 208 are open...

Embodiment 3

[0038] This embodiment provides a method for monitoring the water level of an underground reservoir by the water level monitoring device for a large water inflow underground reservoir described in Embodiment 1 or Embodiment 2. In specific application, the drilling and groove setting can be directly realized on the top plate when building the dam body, and the cable, pressure sensor and Z-shaped casing can be set according to the scheme in the above-mentioned embodiment. By using the device for water level monitoring, while meeting the anti-leakage requirements of the underground reservoir, the wired pressure sensor can be used to monitor the water level of the underground reservoir. Due to the sealing and protection function of the Z-shaped sleeve, the underground cable can transmit the signal of the pressure sensor to the monitoring terminal. The power supply end of the pressure sensor can be connected to the downhole power supply to obtain stable electric energy, and there i...

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Abstract

The invention provides a water level monitoring device and method of an underground reservoir with the large gushing water volume. According to the method, through introduction of a Z-shaped sleeve and a groove and a drilling hole which are formed in a top board and matched with the Z-shaped sleeve, not only can the antiseep requirements of the underground reservoir be met, but the height of the water level of the underground reservoir is monitored by adoption of a wired pressure sensor. Due to sealing and protection actions of the Z-shaped sleeve, signals of the pressure sensor can be transmitted to a monitoring terminal by a underground cable. The power end of the pressure sensor can be connected with a down-hole power supply to obtain stable electric energy, and the size of the pressure sensor is not limited by the underground reservoir, so that the pressure sensor can be automatically provided with a storage device, and water level data can be monitored frequently and in near real-time. By adoption of a wired data transmitting mode, the signals are not affected by severe environment, and the durability is higher.

Description

technical field [0001] The invention relates to the technical field of underground reservoir construction, in particular to a water level monitoring device and method for an underground reservoir with a large inflow of water. Background technique [0002] The coal mine underground reservoir is a form of storing water resources in the goaf. The underground reservoir is a sealed space surrounded by coal pillars tens of meters thick and corresponding artificial dams to completely seal the underground reservoir, so its water level is difficult to observe. In many areas, especially in areas with large water inflows, the water level of the underground reservoir is likely to be higher than the height of the dam body, which may damage the sealed space and cause floods to submerge adjacent equipment. The release of gas seriously affects the safe production of mines, so for underground reservoirs, real-time monitoring and control of water volume is one of the important measures to ens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/18G08C19/00
CPCG01F23/18G08C19/00
Inventor 顾大钊彭苏萍方杰曹志国付萍杰
Owner CHNA ENERGY INVESTMENT CORP LTD
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