Method for saving heat energy for chemical enterprises

Abstract

The invention discloses a method for saving heat energy for chemical enterprises. The method comprises steam generation, steam transmission and steam use; a heat supply device is included during the steam generation; the method further comprises condensed water recovery; a steam delivery pipe is included during the steam transmission; the steam delivery pipe is connected with a steam outlet of the heat supply device; drain devices and heat exchangers are included during the steam use; and the drain devices are connected with the end part of a steam delivery pipe. In the heat energy saving process of a chemical enterprise, a corresponding high-heat-preservation material is arranged outside the steam delivery pipe, the material of the steam delivery pipe is made to be a heat-preservation material, and corresponding sealing assemblies are arranged at joints of two ends of the steam delivery pipe, so that heat loss is avoided; multiple heat exchange devices are connected with the drainers, so that heat exchange and drainage can be well balanced, the influence among all the heat exchange devices in unit is small, and when one drain valve breaks down, the influence on other heat supply devices is small.

Description

technical field [0001] The invention relates to the technical field of chemical enterprises, in particular to a method for saving heat energy in chemical enterprises. Background technique [0002] For enterprises, the level of energy consumption is a comprehensive reflection of technological level, management efficiency, and market competitiveness. my country's energy possession is far below the world average level, while my country's energy consumption per unit output is much higher than developed countries and the world average. In the energy consumption of the whole society in our country, enterprises account for more than 70% of the total energy consumption. The comprehensive energy consumption of chemical enterprises is generally 3-4 tons of standard coal per ten thousand yuan of industrial output value. The energy consumption structure of chemical enterprises is , Coal accounts for 53%, electricity accounts for about 45%, and fuel gas accounts for about 2%. Excessive en...

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Problems solved by technology

[0003]The heat recovery of existing chemical enterprises generally installs corresponding steam delivery pipes at the steam outlet of the heating equipment to transport the steam, and transports it to the steam trap. The heat exchanger is connected with the steam trap to realize the full utilization of heat, but in the process of heat recovery, most of the heat will be dissipated due to heat conduction during the steam delivery pipe to the high-temperature steam, and multiple heat exchangers are combined with one The steam trap is connected, and when the steam trap fails, it will have a great impact on multiple heat exchangers. Therefore, we propose a method for saving heat energy in chemical companies