Maintaining and efficiency improving system for centralized heating

Abstract

The invention relates to a maintaining and efficiency improving system for centralized heating, which comprises an oxygen-free gas generating device, wherein the oxygen-free gas generating device is preferably a nitrogen generating device which prepares nitrogen by using air as raw material; the oxygen-free gas outlet of the oxygen-free gas generating device is connected with the oxygen-free gas inlet on a heat supply system through an oxygen-free gas supply pipe; an oxygen-free gas channel in the heat supply system includes all spaces in the heat supply system, which need oxygen-free gas maintenance, ; the oxygen-enriched gas outlet of the oxygen-free gas generating device is connected with an oxygen-enriched gas storage device through an oxygen-enriched gas output pipe; the oxygen-enriched gas storage device is provided with an oxygen-enriched gas supply port; and the oxygen-enriched gas supply port is connected with the air inlet of a boiler of the heat supply system through an oxygen-enriched gas supply pipe. According to the maintaining and efficiency improving system for centralized heating, the oxidation corrosion of pipe network facilities of the heat supply system in non-heating seasons can be effectively reduced, the combustion efficiency of the boiler can be effectively improved, the power consumption is reduced, and the maintaining and efficiency improving system is mainly suitable for centralized heating systems of various scales.

Description

technical field [0001] The invention relates to a maintenance and efficiency improvement system for central heating, which is mainly suitable for central heating systems of various scales, and also suitable for other related occasions. Background technique [0002] Central heating is an indispensable infrastructure for modern cities and an important part of urban public utilities. The heating system includes boilers for burning heat and heating pipe networks for transporting steam or water. The heating The pipe network usually includes a primary pipe network that circulates with the boiler and a secondary pipe network that circulates with heaters or other heat-consuming equipment. The medium in the primary pipe network and the medium in the secondary pipe network perform heat exchange in the heat exchanger , in order to transmit the heat energy to the secondary pipe network, according to the change of climate in each region, the heating season is around winter every year, an...

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Problems solved by technology

However, there are still many deficiencies in the existing central heating system, such as high energy consumption and low efficiency of the heating system, and the lack of effective maintenance makes the pipe network facilities (generally referring to various pipes and equipment that constitute the medium circulation channel, etc. Same) The service life is short, the operation and maintenance amount is large, and the problem of how to maintain and improve efficiency is prominent

[0004] Due to the lack of effective maintenance and efficiency improvement methods and corresponding devices, usually in the non-heating period, the pipe network facilities of the existing central heating system basically cannot be maintained, and the entire pipe network facilities are often retained after the heating is stopped. Due to the existence of the leakage point of the pipe network facilities, the water will quickly flow out, causing the air to quickly fill the entire pipe network facilities. In this way, during the non-heating period of seven or eight months, the inner walls of the pipes of the entire pipe network facilities will be damaged due to the oxidation of air. Serious oxidation corrosion occurs, and it will become heavier year by year, which greatly reduces the service life of the central heating system pipe network facilities; and in the heating period, the energy-consuming equipment and fuels of the existing central heating system, such as fans , coal-fired, etc., are basically operated and used below the rated efficiency of each equipment and the combustion efficiency of the fuel, the thermal efficiency of the heating source is low, and the energy consumption is high

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