Constant temperature control system for closed cooling tower
A closed cooling tower and constant temperature control technology, which is applied in the field of constant temperature control of cooling towers, can solve problems such as large changes in cooling water temperature, energy loss, and shutdown of refrigerators, and achieve simple automatic control systems, energy saving, and easy debugging Effect
Inactive Publication Date: 2012-10-03
ZHEJIANG SHANGCHENG SCI&TECH
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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
Method used
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[0018] The present invention will be further described below with reference to the accompanying drawings.
[0019] like figure 1 The constant temperature control system of the closed cooling tower shown mainly includes a cooling tower, a variable frequency fan at the upper part of the tower and a water distribution device at the bottom of the cooling tower. The water distribution device includes a water inlet pipe and a water outlet pipe, and the water outlet of the water outlet pipe is connected with a The temperature sensor, the water temperature signal of the water outlet is converted into a variable frequency signal by the temperature controller and the inverter and sent to the variable frequency fan to realize the real-time control of the wind speed.
[0020] When the invention is applied to an open cooling tower, no adaptability is required, and the influence of the environment due to the fast water flow rate can be ignored.
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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 ...
Claims
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IPC IPC(8): F28F27/00
Inventor 罗庆波
Owner ZHEJIANG SHANGCHENG SCI&TECH
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