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Full-backwater multichannel circulating energy saver for fuel gas hot-water boiler

A gas-fired hot water and economizer technology, which is applied to fluid heaters, lighting and heating equipment, etc., can solve the problems that the return water of the hot water boiler system cannot return to the economizer, the water flow rate is high, and the boiler cannot operate normally. Achieve the effects of avoiding low-temperature corrosion, improving thermal efficiency, and reducing temperature difference stress

Active Publication Date: 2012-07-18
哈尔滨红光锅炉总厂有限责任公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problems that the boiler cannot operate normally due to the high flow rate of water in the economizer tube when the existing single circuit circulation is used, and the return water of the hot water boiler system cannot be returned to the economizer, and further provides a fuel-fired gas-fired hot water boiler fully Backwater multi-circuit economizer

Method used

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  • Full-backwater multichannel circulating energy saver for fuel gas hot-water boiler
  • Full-backwater multichannel circulating energy saver for fuel gas hot-water boiler
  • Full-backwater multichannel circulating energy saver for fuel gas hot-water boiler

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specific Embodiment approach 1

[0010] Specific implementation manner one: such as figure 1 As shown, the fuel-fired gas hot water boiler full-return water multi-cycle economizer of this embodiment includes an economizer body 1, and a flue gas condensate drain 1-1 is processed at the lower end of the economizer body 1. The circuit circulation economizer also includes a circulating water outlet header 2, a first water control valve 3, a first drain valve 4, a circulating water inlet header 6, a second water control valve 7, a second drain valve 8, and a plurality of first A pipeline 5 and a plurality of second pipelines 9, the circulating water outlet header 2 is in communication with the economizer body 1 through a plurality of first pipelines 5, and the circulating water inlet header 6 passes through a plurality of second pipelines 9 is connected to the energy-saver body 1, the upper end of the circulating water outlet header 2 is equipped with a first water control valve 3, the lower end of the circulating ...

specific Embodiment approach 2

[0011] Specific implementation manner two: such as figure 1 As shown, the number of the first pipeline 5 in this embodiment is 2-10. With this design, multi-channel circulation is adopted to reduce the water flow rate in the tube, so that all circulating water in the boiler returns to the main body of the economizer. The other components and connection relationships are the same as in the first embodiment.

specific Embodiment approach 3

[0012] Specific implementation manner three: such as figure 1 As shown, the number of second pipelines 9 in this embodiment is 2-10. With this design, multi-channel circulation is adopted to reduce the water flow rate in the tube, so that all circulating water in the boiler returns to the main body of the economizer. Other components and connection relationships are the same as those in the first or second embodiment.

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Abstract

Provided is a full-backwater multichannel circulating energy saver for a fuel gas hot-water boiler. The full-backwater multichannel circulating energy saver solves the problem that when existing single loop circulation is adopted, the flow velocity of water in an energy saver pipe is high so that the boiler cannot run normally and backwater of a hot-water boiler system cannot fully return to the energy saver. A circulating water outlet container is communicated with an energy saver body through a plurality of first pipelines, a circulating water inlet container is communicated with the energy saver body through a plurality of second pipelines, a first water-controlling valve is installed at the upper end of the circulating water outlet container, a first water drain valve is installed at the lower end of the circulating water outlet container, a second water-controlling valve is installed at the upper end of the circulating water inlet container, and a second water drain valve is installed at the lower end of the circulating water inlet container. The multichannel circulating energy saver is used for heat exchange of the fuel gas hot-water boiler.

Description

Technical field [0001] The invention relates to a full-return water multi-circuit energy-saving device for a hot water boiler. Background technique [0002] The oil and gas hot water boiler has a large circulating water volume. For example, for a system with an outlet water temperature of 95°C and a return water temperature of 70°C, the hourly circulating water volume of a 10.5MW boiler reaches 360 cubic meters per hour, and the existing single loop cycle economizer tube The water velocity is: [0003] [0004] The recommended water speed of the hot water boiler is 1~3m / s. The high water velocity in the pipe will cause the pipeline to vibrate. When the vibration is severe, the boiler cannot operate normally. At the same time, the water velocity is high, the water flow resistance is large, and the hot water system resistance It depends on the head of the circulating pump of the system to overcome. Therefore, the resistance is large, the head of the circulating water pump must be in...

Claims

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Application Information

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IPC IPC(8): F24H9/00F24H9/20
Inventor 朱新伟
Owner 哈尔滨红光锅炉总厂有限责任公司
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