Condensate water waste heat recycling and utilization device

Abstract

The invention relates to a condensate water waste heat recycling and utilization device which comprises a condensate water circulating unit, a technological returned-water circulating unit, a living returned-water circulating unit, a first heat exchanger and a second heat exchanger. The technological returned-water circulating unit communicates with a low-temperature-side water feeding pipe of the first heat exchanger and a low-temperature-side water discharging pipe of the first heat exchanger correspondingly, and the living returned-water circulating unit communicates with a low-temperature-side water feeding pipe of the second water exchanger and a low-temperature-side water discharging pipe of the second heat exchanger correspondingly; the condensate water circulating unit comprises a high-temperature condensate water box and a low-temperature condensate water box, and the high-temperature condensate water box communicates with the low-temperature condensate water box after passing through a high-temperature-side water feeding pipe of the first heat exchanger, a high-temperature-side water discharging pipe of the first heat exchanger, a high-temperature-side water feeding pipe of the second water exchanger and a high-temperature-side water discharging pipe of the second heat exchanger. Compared with the prior art, cooling of condensate water and heating of technological circulated-water returned-water and living circulated-water returned-water are integrated, the heat utilization rate is high, energy is saved, and consumption is lowered.

Description

technical field [0001] The invention belongs to the technical field of condensed water circulation, and relates to a condensed water waste heat recycling device. Background technique [0002] The high-temperature condensate discharged from the steam system has a temperature of about 90-100°C. Existing high-temperature condensed water is often discharged directly, or used as circulating cooling water after cooling to provide cooling capacity for workshop equipment. High-temperature condensed water is generally directly exchanged with fast-flowing air in the cooling tower to become low-temperature condensed water, and then passed into the workshop as a cold source. This method directly passes all the high-temperature condensed water into the cooling tower for cooling, which not only makes the working load of the cooling tower too large, reduces the service life of related components in the cooling tower, but also cools a large amount of high-temperature cooling water at the s...

AI Technical Summary

Problems solved by technology

This method directly passes all the high-temperature condensed water into the cooling tower for cooling, which not only makes the working load of the cooling tower too large, reduces the service life of related components in the cooling tower, but also cools a large amount of high-temperature cooling water at the same time. , the cooling efficiency is low, and the cooling effect is poor. It often happens that the condensed water is discharged from the cooling tower before it has cooled to the required temperature, resulting in insufficient cooling capacity of the condensed water in the workshop.

In addition, high-temperature condensed water contains a large amount of heat energy. If the cooling tower is directly used to dissipate heat, it will cause huge waste of energy and increase the production cost of the enterprise.

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