Unlock instant, AI-driven research and patent intelligence for your innovation.

A hot water boiler flue gas waste heat recovery system

A hot water boiler and flue gas waste heat technology, which is applied in heating systems, heating methods, household heating, etc., can solve the problems of high cost and complex structure, and achieve the effects of low cost, reduced energy consumption, and simple structure

Active Publication Date: 2021-06-25
闵鑫沛
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this prior art uses a system combining an economizer, a flue gas condenser, a flash tank and an absorption heat pump to recycle the waste heat of the flue gas, and the structure is complex and the cost is high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A hot water boiler flue gas waste heat recovery system
  • A hot water boiler flue gas waste heat recovery system
  • A hot water boiler flue gas waste heat recovery system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A normal pressure hot water boiler smoke heat recovery system, such as figure 1 As shown, including the hot water boiler 1, in communication with the flue outlet of the hot water boiler 1, the water supply line 3 communicates with the hot water boiler 1, and communication with the hot water boiler 1. Back water line 4.

[0029] In this embodiment, if figure 1 As shown, the output of the rebate line 4 is connected in parallel, and the output terminal of the backshire line 4 refers to the front end of the returning water flow direction. The first tube 4-1 is in communication with the energy saving device 2 to heat the flue gas heat, heat the heating water, and then heat after the flue gas heat is heated, and then heat it into the hot water boiler 1, the second tube Road 4-2 communicates with the hot water boiler 1 with direct heating of the heating water. Usually, the heating water is 20 ° C lower than the water temperature in the hot water boiler 1, and the smoke heat temper...

Embodiment 2

[0038] Pressurized hot water boiler smoke heat recovery system, such as Figure 4 As shown, including the hot water boiler 1, in communication with the flue outlet of the hot water boiler 1, the water supply line 3 communicates with the hot water boiler 1, and communication with the hot water boiler 1. Back water line 4.

[0039] Unlike Example 1, the circulating mechanism is disposed on the first circulating water pump 405 and the second circulating water pump 406 on the retaining line 4, the first circulating water pump 405 and the second circulating water pump 406 in parallel. The water pipeline 4 is on. At this time, the input end of the backshire line 4 is also equipped with a quoted pipeline 5.

[0040] Further, in the present embodiment, the top of the hot water boiler 1 is also exhausted by the exhaust pipe 6 provided with the safety valve 601, in particular, the exhaust pipe 6 is provided with two groups.

[0041] When the first circulating water pump 405 and the second cir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a hot water boiler flue gas waste heat recovery system, belonging to the field of flue gas recovery equipment, including a hot water boiler, and a water supply pipeline and a return water pipeline respectively connected to the hot water boiler, characterized in that the The outlet of the flue of the hot water boiler is connected with an economizer for heat exchange; the output end of the return pipe is connected with the first sub-pipe and the second sub-pipe in parallel, and the first sub-pipe is connected with the economizer The waste heat of flue gas is used to heat the warmed water, and the second sub-pipeline communicates with the hot water boiler to directly heat the warmed water. The present invention installs an economizer on the flue outlet of the hot water boiler, diverts part of the warming water to the economizer to exchange heat with the waste heat of the flue gas, that is, adopts the way of heating the warming water separately, and can efficiently improve the recovery rate of the waste heat of the flue gas , thereby reducing the energy consumption of the hot water boiler. In addition, the present invention only uses an economizer to recycle the waste heat of the flue gas, and has a simple structure and low cost.

Description

Technical field [0001] The present invention belongs to the field of flue gas recovery equipment, and more particularly to a hot water boiler smoke heat recovery system. Background technique [0002] At present, the heating system is generally used by hot water circulation heating. That is, the water is heated with hot water boilers, and then heats hot water to the heat sink or floor heating in the household, and the heat exchange after heat exchange. The water is returned to the hot water boiler by the circulating pump. However, the traditional heating system does not recover the flue gas generated by hot water boilers, resulting in a large amount of waste, the energy consumption of the boiler, further increases economic cost. [0003] In order to solve the above technical problems, prior art (CN10966813A) provides a heating hot water boiler smoke heat recovery system and its recovery method, including heating hot water boiler, provincial coal, desulfurization tower, flue gas co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F24H9/12F24D19/00F28D7/04F28F27/02
CPCF24D19/008F28D7/04F28F27/02F24H9/13
Inventor 闵鑫沛闵含金
Owner 闵鑫沛