A boiler feed water preheating device
A preheating device and boiler feed water technology, applied in the direction of feed water heaters, preheating, lighting and heating equipment, etc., can solve the problems of poor water heating effect, poor flue gas discharge, low flue gas discharge efficiency and water heating efficiency Adjustment and other issues to achieve the effect of improving heat utilization, optimizing the balance effect, and saving fuel
Active Publication Date: 2021-12-07
东营海欣热力供应有限公司
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Problems solved by technology
[0004] The existing boiler feed water preheating device is generally fixed, the passing speed of the flue gas in the exhaust duct is constant, the contact time between the flue gas and the heating water tank is fixed, the efficiency of flue gas discharge and water heating efficiency cannot be adjusted, and the two cannot be balanced according to needs. Or, resulting in poor flue gas discharge or poor water heating effect
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[0033] Example: as attached Figures 1 to 14 As shown, a boiler feed water preheating device includes a flue gas exhaust duct 1 extending in the upper and lower directions, and the cross-sectional shape of the flue gas exhaust duct 1 is rectangular. Several heating water tanks 25 are rotatably connected to the inside of the flue exhaust duct 1 and are driven by a rotary drive device. Specifically, several heating water tanks 25 are arranged in the left and right directions, and each heating water tank 25 is arranged in the front and rear directions. The shape of the water tank 25 is a long strip. In the initial state, the heating water tank 25 is vertically arranged, and the thickness of the upper and lower sides of the heating tank 25 gradually decreases from the inside to the outside. When the heating water tank 25 is deflected by 90 degrees, the adjacent two The gap between the edges of the heating water tank 25 is small, reducing the passage of dust or smoke. Reduce dust....
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The invention provides a boiler feed water preheating device, which relates to the technical field of boiler energy-saving equipment, and includes a flue exhaust duct. A plurality of heating water tanks driven by a rotating drive device are rotatably connected to the inner side of the flue exhaust duct. Both ends of the heating water tank are There is a rotating shaft, the rotating shaft is connected with the flue exhaust duct in rotation, and one end of the rotating shaft extends out of the flue exhaust duct and communicates with the water supply device or the boiler. The rotating shaft is a hollow structure, and one of the rotating shafts is connected with a The water inlet is connected, and another rotating shaft is connected with the water outlet positioned at the upper part of the inner side of the heating water tank. In actual use, the inclination angle of the heating water tank can be changed according to different requirements, so as to achieve reasonable flue gas emission efficiency and water heating efficiency, and achieve the optimal balance effect.
Description
technical field [0001] The invention relates to the technical field of boiler energy-saving equipment. [0002] Specifically, it relates to a boiler feed water preheating device. Background technique [0003] Boilers are common equipment in chemical, oil refining and other enterprises. In order to improve the working efficiency of the boiler and save fuel, the boiler water should be preheated before it enters the boiler. A water pipe is installed in the flue. After the boiler starts to work, the boiler water is transported to the water pipe in the exhaust flue, and then the preheated boiler water is transported to the boiler. The advantage of this method is that the residual heat of the boiler exhaust gas is used to heat the boiler water, without the need to use other energy sources, which is conducive to reducing the use cost and saving resources; in addition, it reduces the temperature of the boiler exhaust gas, which is beneficial to the subsequent exhaust gas treatment....
Claims
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IPC IPC(8): F23J15/06F22D1/16
CPCF23J15/06F22D1/16
Inventor 杨建立
Owner 东营海欣热力供应有限公司