Controllable siphon discharging device and operation method for reservoir drainage or flood discharge

Abstract

A controllable siphon drainage device of reservoir drainage and flood discharging of the invention comprises a dam body, a siphon pipe, a gas outlet valve, a gas outlet pipe, a water inlet pipe, a water inlet valve, a gas inlet pipe provided with a valve, a gas-liquid separator, a water charging pipe provided with a valve and a purge valve. The invention is characterized in that: the dam body is provided with a siphon pipe, the entrance end of the siphon is arranged in the lower part inside the reservoir dam body, the exit end of the siphon is provided with an elbow arranged in the lower partoutside the reservoir dam, the middle part of the siphon is arranged on the top of the dam body, the siphon pipe is provided with a gas inlet pipe with a valve, the siphon pipe is connected to the gas-liquid separator through the gas outlet pipe and the water inlet pipe, the gas outlet pipe is provided with a gas outlet valve, the water inlet pipe is provided with a water inlet valve, the top endof the gas-liquid separator is provided with a purge valve and a water charging pipe with a valve. The invention has the advantages of simple operations, convenience and quickness, work-saving and labor-saving; can improve the effective height, reservoir capacity, flood charging and discharging and normal drainage ability, thereby improving the reservoir safety and flexibility.

Description

technical field [0001] The invention relates to a mechanical device and operation method for reservoir drainage or flood discharge, in particular to a controllable siphon discharge device and operation method for reservoir drainage or flood discharge. Background technique [0002] In the process of people's production and life, water is a kind of non-renewable material resource that human beings rely on for survival, and the reservoir is a large container to ensure that water resources will not be lost. The effective height of its dam will directly affect the capacity of the reservoir. The spillover discharge capacity and method directly affect the effective height and safety of the dam, so the spillover discharge capacity and method are of great significance to the safety and water storage capacity of the reservoir during operation. [0003] In order to ensure the normal operation of the reservoir, the reservoir is generally located near the downstream between two mountains...

AI Technical Summary

Problems solved by technology

Reservoirs with a small design scale are difficult to withstand this pressure, and dangerous situations occur. Most of the reasons for dangerous situations are due to the limited capacity of the reservoir, the limited flood discharge capacity of the spillway, and the inconvenience of flood discharge in advance. Spillways are generally rectangular. To design a large and reasonable cross-sectional area, it is necessary to have a certain height, and its height has no effect or help on the storage capacity of the reservoir, but this height is not available around the reservoir, which is obviously a waste, and is narrow and long The rectangular cross-section is not ideal for the flow rate and flow rate of water, which is poor, so the overflow capacity is also low. In addition, the water discharge valve is generally a traditional gate valve, which is simple and rough. , the gate is stressed, and the friction force increases after the two sides contact. It is laborious and troublesome for farmers to open the gate when they need to deliver water for irrigation or to release floods in advance. Manpower and material resources are used for maintenance, repair and management, which is backward, uneconomical, and prone to leakage

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