Constant temperature control system for closed cooling tower

Abstract

The invention belongs to the technical field of constant temperature control of cooling towers, and particularly relates to a constant temperature control system for a closed cooling tower. The constant temperature control system for the closed cooling tower comprises a cooling tower, a blower in the upper part of the tower and a water distribution device at the bottom of the cooling tower, and is characterized in that the blower is a frequency conversion blower, a water outlet of the water distribution device is connected with a temperature sensor, a water temperature signal of the water outlet is converted into a frequency conversion signal through a temperature controller and a frequency converter and sent to the frequency conversion blower to control the wind speed in real time. The constant temperature control system for the closed cooling tower provided by the invention can control the rotating speed of the blower in real time in a frequency conversion manner according to the water temperature, and not only maintains the water temperature constant under less investment, but also saves a lot of energy sources because the cooling tower is a continuous working device. The constant temperature control system for the closed cooling tower provided by the invention has the advantages of simple structure and convenience in maintenance.

Description

technical field [0001] The invention belongs to the technical field of constant temperature control of cooling towers, and in particular relates to a constant temperature control system of a closed cooling tower. Background technique [0002] Cooling towers are generally mainly composed of fillers (also known as heat-dissipating materials), water distribution systems, ventilation equipment, air distribution devices (such as: air inlet shutters, air guide devices, wind carcasses), water barriers (or water collectors), water collection tanks ( Different combinations of the above structures can be constructed into different types of cooling towers. [0003] The working principle of the cooling tower is that after the dry air is pumped by the fan, it enters the cooling tower from the air inlet network; the high-temperature water molecules with high pressure in the saturated steam flow to the air with low pressure, and the hot and humid water is sprinkled into the tower from the ...

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Problems solved by technology

[0005] 1. When the external environment temperature changes greatly, the temperature of the cooling water provided by the cooling system will also change correspondingly;

[0006] 2. Especially in winter, the cooling water is too cold, which may cause the freezer to stop;

[0007] 3. If the cooling tower runs continuously, it will not only reduce the life of the cooling tower fan, but also consume a lot of energy

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