Efficient steam heat supply and waste heat recovering system

Abstract

The invention discloses an efficient steam heat supply and waste heat recovering system. The efficient steam heat supply and waste heat recovering system comprises a heat accumulator (2), an automatic boiler sewage discharge system (6), and a boiler steam distribution system (7). The efficient steam heat supply and waste heat recovering system is characterized in that a low position heat power deoxidization system (1), a steam gradient utilization system (3), and a condensed water iron removal system (5) are arranged in the efficient steam heat supply and waste heat recovering system. The efficient steam heat supply and waste heat recovering system, provided by the invention, can improve boiler efficiency, avoid discharge waste and energy level waste, avoid heat discharge and environment pollution, ensure that the water quality of condensed water reaches the requirement of boiler reuse, fully recycle the sewage heat quantity, simplify the boiler room construction, and reduce civil engineering cost.

Description

technical field [0001] The invention belongs to a steam thermal system, in particular to a high-efficiency steam heat supply and waste heat recovery system. Background technique [0002] At present, the thermal system design often has the following problems: [0003] 1) The thermal system is designed according to the maximum steam consumption provided by each steam-consuming unit, which usually results in the situation of large horse-drawn carts, and at the same time, the load of the boiler is low, and it cannot work at the best efficiency point; [0004] 2) Boiler blowdown is too large, and the loss of boiler blowdown is ignored in the actual operation process, resulting in a lot of energy waste; [0005] 3) During the recovery of steam condensate, there is no fine treatment, which will cause high iron ions in the boiler drum and affect the water quality of the boiler; [0006] 4) Due to the mixing of various high and low temperature condensate water, the high temperature...

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Problems solved by technology

[0003] 1) The thermal system is designed according to the maximum steam consumption provided by each steam-consuming unit, which usually results in the situation of large horse-drawn carts, and at the same time, the load of the boiler is low, and it cannot work at the best efficiency point;

[0004] 2) Boiler blowdown is too large, and the loss of boiler blowdown is ignored in the actual operation process, resulting in a lot of energy waste;

[0005] 3) During the recovery of steam condensate, there is no fine treatment, which will cause high iron ions in the boiler drum and affect the water quality of the boiler;

[0006] 4) Due to the mixing of various high and low temperature condensate water, the high temperature condensate water in the system cannot be completely sealed and recycled, resulting in energy waste;

[0007] 5) In the process of system condensate recovery, because the secondary steam cannot be fully utilized, the discharge loss is too large, and the environment of the plant area is affected

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