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Temperature control system of cooling water of cooling tower

A technology of temperature control system and cooling tower, which is applied in the field of temperature control system of cooling water in cooling towers, can solve problems such as difficult continuous adjustment of water temperature, and achieve the effect of reducing maintenance or replacement costs, reducing input costs, and reducing losses

Inactive Publication Date: 2015-04-29
SHANGHAI DAZHONG XIANGYUAN POWER SUPPLY
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the fan control method of the traditional cooling tower is mainly the start-stop control of the fan, that is, when the temperature of the cooling water is high, the fan is turned on, and when the water temperature drops below the set value, the fan is turned off, and the temperature of the cooling water is near the set value. fluctuations, it is difficult to achieve continuous adjustment of water temperature

Method used

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  • Temperature control system of cooling water of cooling tower

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Embodiment

[0021] like figure 1 As shown, a temperature control system for cooling water in a cooling tower, the system includes a temperature sensor 3, a temperature controller, a frequency converter, a water pump 2, a cooling tower 4 and a condenser 1, and the temperature sensor 3 is arranged between the water pump 2 and the condenser 1. On the water inlet pipe between the condensers 1, the temperature controller has a PID operation function, and is connected to the temperature sensor 3 and the frequency converter through an external circuit, and the frequency converter is connected to the cooling tower 4 through the circuit. The fan is connected. In this embodiment, the temperature sensor 3 is a PT100 temperature sensor.

[0022] When working, the PT100 temperature sensor detects the temperature of the cooling water in the inlet pipe of the condenser 1, transmits the temperature analog signal to the thermostat, and compares it with the preset value of the thermostat. The thermostat c...

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Abstract

The invention relates to a temperature control system of the cooling water of a cooling tower. The system comprises a temperature sensor (3), a temperature controller, a frequency converter, a water pump (2), a cooling tower (4) and a condenser (1), wherein the temperature sensor (3) is arranged on a water feeding pipe between the water pump (2) and the condenser (1); the temperature controller is respectively connected to the temperature sensor (3) and the frequency converter through an external circuit; the frequency converter is communicated with a fan in the cooling tower (4) via a circuit. Compared with the prior art, the temperature control system has the advantages of simple flow, energy saving and consumption reduction, the temperature of the cooling water can be automatically controlled, and the service life of the fan of the cooling tower (4) can be obviously prolonged.

Description

technical field [0001] The invention relates to a liquid temperature control system, in particular to a temperature control system for cooling water of a cooling tower. Background technique [0002] With the shortage of energy resources in the world and the huge environmental pressure brought about by global warming, saving energy and protecting the environment has become a major issue that cannot be ignored by all countries in the world. HVAC systems account for more than half of a building's energy consumption, with a large portion of the energy required for cooling water, which is used to remove the heat load. [0003] In general, the temperature of the cooling water entering the condenser is 32°C, and the temperature of the cooling water coming out of the condenser is 37°C. In the case of ensuring the cooling water flow, the task of the control system is to control the cooling tower, so that the temperature of the cooling water entering the condenser through the cooling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F27/00
Inventor 苏胜峰宋佳耀陆志良周建东赵炆姚新
Owner SHANGHAI DAZHONG XIANGYUAN POWER SUPPLY
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