Cooling water tank allowing amount of returning water to be controlled

Abstract

The invention relates to a cooling water tank allowing the amount of returning water to be controlled. The cooling water tank comprises a tank body holding cooling water; a first partition board and a second partition board are vertically arranged in the tank body and divide the tank body into a first tank body, a second tank body and a third tank body; a first heating device is mounted in the first tank body, a flow discharge pipe is mounted at the bottom, a water return pipe and a water replenishing pipe are mounted at the top, and a water drainage pipe and a fourth regulating valve are additionally arranged on the water return pipe; a second heating device is mounted in the second tank body; a third heating device is mounted in the third tank body, an overflow pipe is mounted at the upper part of the side wall of the third tank body, and a water supplying pipeline is mounted at the lower part; the flow discharge pipe and the overflow pipe are both connected with the water drainage pipe; the bottoms of the first tank body and the second tank body are communicated, and the tops of the second tank body and the third tank body are communicated. Compared with a traditional cooling water tank, the cooling water tank provided by the invention has the advantages that a compressor is canceled, and the space is saved; besides, the opening degree of the fourth regulating valve can be reduced, so that the flow rate of the cooling water which is subjected to heat exchange, is relatively high in temperature and returns to the tank body through the water return pipe can be controlled.

Description

technical field [0001] The invention relates to the field of control, in particular to a cooling water tank with controllable return water used in flue gas heat exchange experiments at the tail of a power plant. Background technique [0002] The cooling water tank is a commonly used instrument and equipment in the industrial and scientific research fields. In some occasions that require precise control of the cooling process parameters, such as laser cavity cooling or some scientific experiments, it is often necessary to feed cooling water with a constant temperature into the cooling pipe. . [0003] Commonly used cooling water tanks generally have two characteristics: 1. The cooling water is generally recycled, and the cooling water needs to be cooled. The cooling method is often to use a cooling device, such as compressor cooling or heat exchanger cooling. However, these cooling devices Generally, the volume is relatively large, and the use of additional cooling devices m...

AI Technical Summary

Problems solved by technology

In this experiment, due to the complex composition and high temperature of the flue gas at the tail of the boiler, it is difficult to build a simulation test bench in the laboratory, so the experiment is mainly completed in the actual operating environment of the power plant, and the experimental conditions are subject to many restrictions

For example, the layout of power plants is generally very compact, and the operating space is small. Conventional cooling water tanks with compressors are not suitable for this kind of workplace. On the other hand, the experimental conditions of power plants are simple and the environment is noisy. Experimenters hope to use as simple a controller as possible. completed experiment

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