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Boiler feed water preheating device

A preheating device and boiler feed water technology, which is applied in the direction of feed water heaters, preheating, lighting and heating equipment, etc., can solve the problems of unadjustable flue gas emission efficiency and water heating efficiency, poor flue gas emission, and poor water heating effect Good and other problems, to achieve the effect of improving heat utilization, optimizing balance effect and saving fuel

Active Publication Date: 2021-11-05
东营海欣热力供应有限公司
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AI Technical Summary

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

Method used

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  • Boiler feed water preheating device
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  • Boiler feed water preheating device

Examples

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Embodiment

[0033] Example: as attached Figures 1 to 14 As shown, a boiler feed water preheating device includes a flue exhaust duct 1 extending in the upper and lower directions, and the cross section of the flue exhaust duct 1 is rectangular in shape. The inner side of the flue exhaust duct 1 is connected with several heating water tanks 25 driven by a rotating drive device. Specifically, several heating water tanks 25 are arranged along the left and right directions, and each heating water tank 25 is arranged along the front and rear directions. The shape of the water tank 25 is elongated. In the initial state, the heating water tank 25 is vertically arranged, and the thickness of the upper and lower side edges gradually decreases from the inside to the outside. When the heating water tank 25 deflects 90 degrees, two adjacent The gap between the edges of the part heating water tank 25 is smaller to reduce the passage of dust or smoke. Reduce dust.

[0034] Specifically, a rotating s...

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Abstract

The invention provides a boiler feed water preheating device, and relates to the technical field of energy-saving equipment for boilers. The boiler feed water preheating device comprises a smoke discharge flue, a plurality of heating water tanks driven by a rotation driving device are rotationally connected to the inner side of the smoke discharge flue, rotating shafts are arranged at the two ends of each heating water tank, the rotating shafts are rotationally connected with the smoke discharge flue, one end of each rotating shaft extends out of the smoke discharge flue and then is communicated with a water supply device or the boiler, the rotating shafts are of hollow structures; and for each heating water tank, one rotating shaft is communicated with a water inlet located in the lower portion of the inner side of the heating water tank, and the other rotating shaft is communicated with a water outlet located in the upper portion of the inner side of the heating water tank. In actual use, the inclination angle of each heating water tank can be changed according to different requirements, so that reasonable smoke discharge efficiency and water heating efficiency are achieved, and the optimal balance effect is achieved.

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 is preheated before it enters the boiler. The existing boiler feed water preheating method is in the exhaust of the boiler A water pipe is installed in the flue, and after the boiler starts to work, boiler water is delivered to the water pipe in the flue, and then the preheated boiler water is delivered to the boiler. The advantage of this method is to use the residual heat of the boiler exhaust to heat the boiler water without using additional energy, which is conducive to reducing the use cost and saving resources; in addition, the temperature of the boiler exhaust is reduced, which is beneficial to the...

Claims

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Application Information

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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
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