Online evaluation system for hydraulic service gate of pumped storage power station
A pumped-storage power station and evaluation system technology, applied in water conservancy engineering, marine engineering, coastline protection, etc., can solve problems such as auxiliary spillway damage, and achieve the effect of reducing failure rate, saving time required for monitoring, and reducing pressure
Active Publication Date: 2022-01-28
华东桐柏抽水蓄能发电有限责任公司
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Another example is the severe damage to the auxiliary spillway of the Toddbrook Reservoir Dam in Derbyshire, UK in August 2019, which led to the emergency evacuation of about 1,500 residents in the downstream Whaley Bridge town
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[0019] The following is further described in detail through specific implementation methods:
[0020] The embodiment is basically as attached figure 1 Shown: An online evaluation system for hydraulic work gates of a pumped storage power station includes gates installed at any diversion pipe, a number of metal strain gauges attached to the surface of the gates, and a processing system for controlling and summarizing the information of the metal strain gauges. It also includes a local monitoring unit, which includes a 10.4' color touch control screen and an emergency switch for manual operation.
[0021] As an odd number, there is a strain box at the gate. The strain box has built-in rheostat lamp beads, a camera and a compass pointer fixed on the strain box. The rheostat lamp beads and the camera are connected with a threshold valve. The threshold valve is used to sense the threshold A of vibration. When the threshold value is greater than A, the camera shoots and transmits, a...
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The invention discloses an online evaluation system for a hydraulic service gate of a pumped storage power station in the technical field of online monitoring of water conservancy projects. The online evaluation system comprises a plurality of metal strain gauges attached to the surface of the gate, a strain box is arranged at the gate serving as an odd number, and a variable resistance lamp bead, a camera and a compass pointer fixed to the strain box are arranged in the strain box. The brightness of the variable resistance lamp bead is increased along with the increase of vibration, and the camera directly faces the compass pointer and is in signal connection with the processing system. The metal strain gauge in the gate is used for monitoring the flood overflow condition, interference information is avoided in the monitoring process, therefore, the strain box is used for conducting single-point sampling, the brightness released by the variable resistance lamp bead is used for changing the shooting environment of the camera in the information obtaining process, abnormal conditions can be conveniently sorted out according to the gray level of a picture, and the abnormal condition can be used as supplementary information after the fault of the metal strain gauge, and can also be used as a reference basis in a maintenance process.
Description
technical field [0001] The invention belongs to the technical field of online monitoring of water conservancy projects, in particular to an online evaluation system for hydraulic working gates of pumped storage power stations. Background technique [0002] As an important flood discharge structure of a hydropower station, the spillway will lead to extremely serious consequences once a problem occurs during operation. For example, the Oroville Dam spillway accident in the United States occurred in February 2017, causing about 18.8×104 people in the downstream area of the dam to be transferred urgently. Another example is the local severe damage to the auxiliary spillway of the Toddbrook Reservoir Dam in Derbyshire, UK in August 2019, which led to the emergency evacuation of about 1,500 residents in the downstream town of Whaley Bridge. These accidents have sounded the alarm for us. At present, the total number of dams in my country ranks first in the world, and its safety ...
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Login to View More IPC IPC(8): G08B21/18G08B29/02E02B7/20
CPCG08B21/18E02B7/20G08B29/02Y02E10/20
Inventor 黄建德陈小强赵锋陈勇孙逊张磊刘轩宇吕洋
Owner 华东桐柏抽水蓄能发电有限责任公司