Numerically-controlled intelligent adjusting energy-saving cold supply system

Abstract

The invention discloses a digitally-controlled intelligent adjusting energy-saving cold supply system. The system comprises a water chilling unit, a water chilling unit side cooling tower, a water chilling unit cooling water pump, a water chilling unit chilled water pump, a chilled water tank, a process cooling water side, a process equipment side chilled water pump, a process equipment side cooling tower, a water pump matched with the process equipment side cooling tower, a cooling water tank, a communicating water pump between the cooling water tank and the chilled water tank, a process equipment side cooling water pump, a temperature adjusting electric valve, a switching electric valve, chilled water, cooling water and a cooling water tank cold water area temperature sensor, and is characterized in that the chilled water of 7 DEG C can be prepared in the water chilling unit, a set of cooling system is arranged in the water chilling unit, and the flow of the cooling system is that a water pump on the condenser side of the water chilling unit sucks water cooled by the cooling tower and sends the water to the condenser side of the water chilling unit; and the outlet water of the condenser side is introduced to an open cooling tower, and the cooling water of the open cooling tower is introduced to the condenser side water pump, so that a circulating cooling system required by the water chilling unit is formed.

Description

technical field [0001] The invention relates to a cooling device, in particular to a digitally controlled intelligently adjusted energy-saving cooling system which can make full use of natural cooling sources without causing huge energy waste. Background technique [0002] A large number of factories need to supply chilled water and cooling water to process equipment all year round to meet the heat demand of cooling fans of various process equipment. Some process equipment has strict requirements on the temperature of chilled water and cooling water. The temperature of chilled cooling water fluctuates greatly or the water temperature exceeds the predetermined range. The equipment will not be able to operate, which will seriously affect the normal production. The existing technology uses the chiller to supply cooling all the year round to control the freezing water temperature of the process equipment, and uses the method of cooling tower and heat exchanger to control the cool...

AI Technical Summary

Problems solved by technology

[0002] A large number of factories need to supply chilled water and cooling water to process equipment all year round to meet the heat demand of cooling fans of various process equipment. Some process equipment has strict requirements on the temperature of chilled water and cooling water. The temperature of chilled cooling water fluctuates greatly or the water temperature exceeds the predetermined range. The equipment will not be able to operate, which will seriously affect the normal production. The existing technology uses the chiller to supply cooling all the year round to control the freezing water temperature of the process equipment, and uses the method of cooling tower and heat exchanger to control the cooling water temperature of the process equipment. The two systems are separated and directly connected by pipes To each chilled water or cooling water demand point, there are the following problems. First, the water temperature in the low-temperature season is already lower than the water supply temperature of the chiller, but the chiller still needs to be operated to supply chilled water to the process equipment, and the waste of energy consumption is relatively huge. ;Secondly, in order to ensure the water quality, the cooling tower and heat exchanger are used to control the cooling water temperature of the process equipment. Due to the influence of the temperature difference of the heat exchanger, the water temperature may not be able to drop to the expected requirement during the high temperature period in summer. , affecting the normal operation of process equipment; the third and above two sets of systems lack buffer water tanks, and the water capacity of pipelines is small. Changes in the water temperature of chillers or cooling towers will cause large fluctuations in the chilled cooling water of process equipment, which will also cause Affect the normal operation of process equipment