Temperature-controllable dry and wet-open and closed integrated cooling tower system

Abstract

The invention discloses a temperature-controllable dry and wet-open and closed integrated cooling tower system which comprises a cooling tower, an automatic controller, an open cooling tower water inlet pipeline, a closed cooling tower water inlet pipeline, a heat release equipment cooling water return pipeline, an open cooling tower water outlet pipeline, a closed cooling tower water outlet pipeline, and a heat release equipment cooling water supply pipeline, wherein the automatic controller is used for controlling running of a variable frequency motor of the cooling tower and starting or stopping of a circulating water pump; and the automatic controller is also used for controlling the conduction paths of the pipelines by controlling a three-way reversing valve. According to the integrated cooling tower system, surrounding air can be fully utilized to perform a cooling operation in summer, the high-efficiency cooling effect of cooling water is achieved on the basis of effectively preventing frostbite in winter, open and closed heat exchange modes can be switched from one another and can be also combined for operation, and the high-efficiency heat exchange of the cooling tower is achieved.

Description

Technical field [0001] The invention belongs to the technical field of cooling towers, and specifically relates to a novel high-efficiency cooling tower system that integrates dry type and wet type, open type and closed type, and can regulate and control the cooling water supply temperature and can operate throughout the year. Background technique [0002] As a cooling device that exchanges heat with the surrounding air, the cooling tower is currently mainly used in air conditioning and industrial cooling. Air conditioning and refrigeration systems mostly use open wet cooling towers to dissipate the heat of the condenser into the air, and generally only operate in summer. Although it can achieve sufficient heat and moisture exchange effects, it is not suitable for the antifreeze problem of spray water. It runs in winter in northern my country. Cooling towers also have several applications in industry. For example, in the power, chemical and metallurgical industries, there are a l...

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Problems solved by technology

[0004] (1) Wet cooling towers or open cooling towers, that is, the warm fluid directly contacts with the air for heat exchange, which has high heat exchange efficiency, but faces the problems of unguaranteed water quality, large water loss and antifreeze in winter

[0005] (2) Dry cooling tower or closed cooling tower is the indirect contact between warm fluid and air for heat exchange. Although it solves the problems of winter antifreeze and rain flow, the heat exchange efficiency is low, and under the same environmental conditions, the cooling water The outlet temperature is high, which cannot meet the needs of some special situations

[0006] (3) Dry and wet cooling towers are designed to connect dry and wet in series or in parallel. Although the heat exchange efficiency is improved, the operation and design of this mixed system is very dependent on the ambient temperature, and it still cannot solve the problem of winter antifreeze.

[0007] With the continuous development of industrial production levels, people have put forward higher requirements for the performance of cooling towers, and traditional cooling towers can no longer meet the requirements. For example, in the process of research and development of low-temperature waste heat power generation systems, it is necessary A cooling tower that exchanges heat efficiently in summer and can operate normally in winter achieves the purpose of using air as a cold source to provide cold fluid with the lowest temperature. Cooling tower system that can switch between warm dry closed type and wet open type

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